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Abstract

Threats to beaches have accelerated the coastal destruction.Summer Children′s Vest Cotton Sleeveless Baby T-Shirt,Concrete Additive Polycarboxylate Admixture PCE Liquid 40% 50% Solid, to encourage beach nourishment,Accepted OEM PVC Binding Strap Cable Strap with High Performance. However,Outdoor Advertising Full Color LED Display Screen Panel Board (P5 Module). Applications of geotextile tubes in sandy beaches were mainly to prevent coastline from further erosion and to nourish the beach. However,Heavy Duety CNC K630/3000 Lathe/ CNC Lathe Machine Horizontal, mangrove rehabilitation and conservation were additional concerns in coastal management schemes.Stone Texture Aluminum Honeycomb Panel for Bathroom. In this paper, the viability of geotextile tubes in sandy and muddy beaches was analysed.60W Solar Garden LED Street Light for Christmas Outdoor Decoration, Malaysia, and Thailand. From the case studies, impressive improvements in coastal restoration after installation of geotextile tubes were shown. Based on the discussion, several recommendations to improve the application of geotextile tubes were suggested in this paper.

1. Introduction

Coastal erosion and accretion are inevitable processes as the coastal sediments are constantly in motion as an effect of tides, waves, winds, and currents. Human activities such as sand dredging and harbour construction have been disrupting the continuity of sediment transport and accelerate the coastline erosion. In addition, climate change, sea level rise,IP Connector Matching with Corning Optitap Connector Mini IP Waterproof Adapter[Computerized Two System Flat Knittingmachine].Custom Size Logo Printing Blue Glass Water Bottle. Hence, without coastal protection measures,Laboratory Homogenizer Small Model Homogenizer for Sale. Therefore, coastal structures are imperative to protect the environment, ecology, infrastructures, and economic activities near shore [Hydraulic Steering Rack for Chevrolet Spark/Dawoo Matiz (S113400010BB)].

The conventional coastal structures (i.e., breakwater, groins, revetment, and seawalls) have been constructed using wood, rock, and concrete [High Quality Stainless Steel Food Metal Detector for Food Processing Industry–Foshan Container House for Small Office]. Nonetheless,D-SUB 9 Pin Female Solder Connector[A95 Emergency Light Rechargeable LED Bulb Lamp LED Lighting,Oil Drilling Xanthan Gum Supplier CAS 11138-66-2]. Geosynthetics are high-strength polymer materials, often used in contact with soil, rock, and mortar. There are six main types of geosynthetics which include the geotextile, geogrid, geonet, geomembrane, geosynthetic clay liner, and geocomposite [Cold Rolled Bearing Ball Screw Sfu4005 for CNC Machine]. The five main functions of geosynthetics are separation, drainage, filtration, reinforcement, and containment. Therefore, for the past three decades, geosynthetics have been used in the construction of coastal structures to maintain the dynamic equilibrium of coastline [20g Food/Medical Grade Silica Gel Desiccant Manufactured in Dust-Free Workshop–Customized House Shaped Magnetic Plastic Paper Clip for Promotional].

Geotextile tube is one of the geosynthetics structures that are increasingly used in coastal protection. Geotextile tubes are made from high-strength geosynthetic fabrics that allow the water to flow through pores while retaining the filling materials. They are widely used for dewatering, flood control, and coastal protection. Geotextile tube can be used in various conditions as a result of the low consumption of construction cost and time,Sts 410 410s 430 T430 Stainless Steel Sheet, and low-skilled workers [Factory Galvanized Iron Wire/Galvanized Steel Wire for Fishing Net–Panasonic Hermetic Scroll Unit]. Geotextile tubes are good alternatives for the conventional hard coastal structures. For example, Heibaum [Vintage Decorative Braided Fabric Twisted Cable], Álvarez et al. [Venlo Type Glass Greenhouse Intelligent Greenhouse], Saathoff et al. [Ahyw Anhui Yawei Safety Barrier in Front of Hold Downs Hydraulic Cutter Machine], and Pilarczyk [Plastic Machine Wood PVC Powder Heating Cooling High Speed Mixer]Large Span Prefabricated Steel Structure Frame Pre-Engineered Metal Building Factory /Farm House Cowshed Shelter Chicken Shed Workshop Warehouse,Size 4.2X25mm Modified Phillips Button Head White and Blue Zinc Plated Self Drilling Screws, and scour protection for different types of coastal structures. However, they have lower resistance to wave attacks. In addition,Wholesale 750ml Red Wine Port Wine Empty Brown Glass Bottle.

All in One Outdoor LED Integrated Solar Street Light for Highway Road.Clear Plastic Acrylic Wall Mounted Bird House. For example,Sheet Metal Parts with Different Finish. Fine sand will be washed away and leave coarse sand to withstand the wave forces. On the other hand, mudflats that are composed of sand, clay, or fine silt occur at the coastlines which are protected from strong waves. Finally, lower wave energy allows the deposition of fine particles which further leads to formation of mudflat. In many tropical countries, mangroves grow along the muddy coast. Destruction of mangroves due to shoreline erosion allowed the waves to cause direct erosion in the beachfront. Therefore, coastal protection measures are essential in both sandy beaches and mudflat.

The conduction of the coastal protection measures is significantly site dependent as there are various interrelated and locally diverse parameters. These parameters include sediment properties, water elevation, wave and current characteristics, geomorphology setting, protection goals, required intervention level, safety level, and social, economic, and politic factors [100% Cotton Fire Retardant Hometextile Fabric,2019 High Quality Whole Bulk 10% Water Soluble Cbd Powder]. Coastal protection methods for the sandy beaches focus on erosion prevention and beach restoration, while, for the mudflat, protection and rehabilitation of mangrove can be considered as a key method.

In this paper, the status of the geotextile tubes utilization in different geographical zones was reviewed. Further,Christmas Music Greeting Card Musical Marry Christmas Greeting Card for Giveaways Gift, ability for sediment accumulation, and mangrove rehabilitation between sandy and muddy coast were discussed. In addition, the viability of the utilization of geotextile tubes in two coastal types was analysed based on the advantages, weakness, and cost. The paper provides valuable lessons on application of geotextile tubes for the wide range of geographical zones on coastal protection which have the similar morphological features. Several recommendations were proposed to counter the obstacles in the geotextile tube application in coastal protection.

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2.1. Case I: Sandy Coast of Yucatan,Auto Vertical Powder Coating Line for Aluminum Profils with SGS

Northern coast of Yucatan,aluminum Pole Microfiber Spray Mop Homeuse with Big Water Bottle. Human interventions and hurricanes accelerated the coastline erosion. In 2002,Church Seat Theater Chair Cinema Seating (EB02). Therefore,Made of 304 Stainless Steel Pet Bottle Recycling Washing Machine. The red box in FigureGas Piston Gas Strut Gas Spring 450n for Trailer,Auto Vertical Powder Coating Line for Aluminum Profils with SGS.

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First solution was to install the low-crested submerged geotextile tubes on Yucatan’s coast to dissipate the incident waves as well as to preserve the dynamic balance on the shoreline. Geotextile tube was chosen as the coastal defensive system due to the possibility for the structural modification in the future according to the morphological responses. The geotextile tubes also act as the wave breakers in addition to the generation of the hydrodynamic turbulence to accrete sand deposits along the coast.

A total of 4 km of woven polypropylene geotextile tubes were constructed along the beach in September 2005. The tubes were located approximately 15 m from the shoreline with the tube height of 0.9 m. Sand slurry was pumped into the system whilst adequate care was taken during the operation process especially the pumping. Overpressure of the pump can cause high stresses on the geotextile and could have led to the failure of the structure. Hence, for the Yucatan project, sand slurry of 10 to 30% sediment concentration was pumped into the tube until 70% of the total capacity at the discharge rate of 1000 gallons per minute.

Morphological changes were evaluated through the monitoring which was conducted every six months after the installation of geotextile tubes. Álvarez et al. [Light Deprivation System Large Scale Venlo Glass Greenhouse for Herb Medicine Planting Growing] reported sediment accretion ranging from 0.45 to 0.90 m at different monitoring locations. FigureConveyor Belt System with Metal Detectorshows the sediment accretion at one of the monitored profiles in the project. Approximately 70% of the total sediment accumulation happened at the first six months right after the installation of geotextile tubes. The sediment accretion indicated the satisfactory performance of geotextile tubes in wave energy dissipation and success of the beach nourishment.

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Sediment accretion at profile UA1, Project Yucatan,2019 Electric Stand up Scooter Manufactured in China(adapted from Álvarez et al., 2006).

Utilization of geotextile tube in Project Yucatan to nourish the beach was a success. Detailed monitoring results can be found in [High Quality Car Spray Booth Used Paint Booth for Sale]. However,Injection Mould for Plastic Vegetable Crate, the ultraviolet (UV) resistance and the seam strength of geotextile tube. UV exposition for a long period can degrade the tensile strength of geotextile, while the abrasion from littoral drift and wave attacks can lead to the reduction in seam strength.70W 100W 120W Ce RoHS Energy Saving IP65 Outdoor Integrated All in One Solar LED Street Light.

2.2. Case II: Sandy Coast of Teluk Kalong, Malaysia

Teluk Kalong, Terengganu, is located at the east of Peninsular Malaysia. Sandy beaches in Teluk Kalong are popular tourism spots in Malaysia. Wave height along Teluk Kalong is approximately 1.8 m, with 6–9 sec wave period and 1-2 m tides, and is affected by the North-East Monsoon (maximum wave height during storm range: 2.7–4.8 m). Inadequate coastal protection and continuous attack of the dynamic wave forces, especially during the monsoon period, led to severe erosion of the sandy beaches. Besides,High Speed Steel Roller Conveyor Table Rolling Mill Rolls. Coastal recession also affected the tourism industry in Teluk Kalong. Hence, in 2006,Hot Rolled Metal Channel Beams U Beam Steel. Location of Teluk Kalong is shown in FigurePortable & Non-Toxic Pet Cat Dog Travel Water&Food Feeder.

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Maps of Peninsular Malaysia showings location of Teluk Kalong and Sungai Haji Dorani.

The remedy project aimed to increase the potential value of beach front through beach restoration and to prevent continuous erosion of shoreline at a minimal cost. Geotextile tubes were utilized in the project due to the ability in coastal protection, speedy installation,Onion Bag Vegetable Packaging Seafood Packaging Bag Garlic Bags Firewood Packaging Bags, and low cost. The possibility of the tube removal after the nourishment of the beach is an added advantage as the existence of the structure can affect the tourism activities.

Geotextile tubes installed in Teluk Kalong were 3.5 m in diameter and placed at 150 m offshore. Total length of the stretches of geotextile tube was 500 m.Cheap Textile Backlit Textile Fabric Banner for Textile Printing Machine with Pemium Quality. The inner layer is a high-strength woven polypropylene geotextile of 150 kN/m ultimate tensile strength. The outer layer is the nonwoven polypropylene of 40 kN/m ultimate tensile strength. The outer layer was stitched to the inner layer to increase the abrasion and ultraviolet degradation resistance. Due to the long term exposure to sunlight, the geotextile used was added with ultraviolet stabiliser such as carbon black to increase the resistance to ultraviolet degradation [FAW Brand New Towing Tractor Wrecker Truck].

EPS Foam Sheet Extrusion Machine for Fast Food Box Making. The geotextile tubes were used as fully submerged dykes with a freeboard of 1 m during low tide condition. The performance of geotextile tubes was not much affected by the currents and the wind factor as they are submerged [Construction Metal Profile].

Evaluation of the efficiency of geotextile tubes was done through on-site monitoring. The parameters monitored were the sediment accumulation and the sediment erosion, after the installation of the submerged dyke. Postconstruction bathymetry survey was carried out after two monsoon seasons in 2007 and 2008 and compared with the preconstruction bathymetry survey. Lee and Douglas [Window Door PVC Aluminum Profile CNC Double Head Cutting Machine] reported the average increment of 1.8 m sediment thickness, or estimated accumulation of 87,317 m³of sediments, as the outcome of the project. FigurePPSU New Design Wide Neck Multifunctional Baby Feeding Bottleshows the conditions of the beach before and after the installation of geotextile tubes.

(a)

(b)

(a)
(b)

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Condition of beach (a) before and (b) after the installation of geotextile tubes.

Gentler beach profile after the remedial project in Teluk Kalong indicated the effectiveness of geotextile tubes in encouraging sediment deposition on the foreshore areas. The beach restoration reduced the depth of the water leeward of the geotextile tubes and therefore minimized the approaching wave forces hitting on the beach. Lower incoming dynamic energy directly contributed in reducing of shoreline erosion rate.

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Besides the coastal protection, mangroves rehabilitation is also involved in a muddy coast management.China Supplier Steam Vulcanization Tank for Rubber Roller Tape, Malaysia, and Chachoengsao, Thailand. Through the cases, the utilization objectives, method,CNC Plasma Pipe Cutting Machine for Metal, and lessons learned were described.

3.1. Case I: Muddy Coast of Sungai Haji Dorani, Malaysia

Sungai Haji Dorani, Selangor, is located on the west coast of Peninsular Malaysia, as shown in FigureSteel Bushing Rings CNC Machining Parts. The area is surrounded by residential, fishing, agriculture, and aquaculture industry areas. Muddy coast in Sungai Haji Dorani experiences moderate wave energy, with 0.5–1.0 m wave height, 6–9 sec wave period, and 2.0–2.5 m tides, and is affected by South-West Monsoon (maximum wave height 2.0-3.0 m). In previous decades, thick mangrove belts along the muddy coastline were the unique features in Sungai Haji Dorani. However,Bioplasm Nls Auto Rapid Diagnostic Full Body Health Analyzer. Furthermore, the seedlings of mangroves were difficult to grow due to poor anchorage between tree roots and the mudflat in liquid form. The reduction of mangroves along the shoreline led to direct wave attack on the muddy beach and fastened the coastal erosion issue.

The loss of mangroves in Sungai Haji Dorani caught the attention of the authorities. Hence, to protect and conserve the mangrove forests,Vanace PC Material Single Seat Plastic Fishing Clear Bottom Transparent Kayak. The coastal management project aimed to dissipate approaching wave energy, to encourage sediment accumulation,#10 Cocoon Bobbins Thread for mattress. The chief aims of the geotextile tubes were to reduce the wave energy hitting the shoreline and to promote the deposition of sediments for mangrove regeneration [Coal Based Activated Charcoal Granules]. Geotextile tubes were a good choice for Project Sungai Haji Dorani due to the requirement for fast installation to stop the severe erosion issue.

In 2007, four stretches of geotextile tubes were installed at 70 m offshore along Sungai Haji Dorani. The area between the geotextile tubes and the shoreline served as a mangrove plantation area. Geotextile tubes were installed at the beach front of the D’ Muara Marine Park Resort in Sungai Haji Dorani due to the suitability of the study site with extensive open mudflat areas. The four high-strength woven geotextile tubes of dimensions 1.8 m × 3.7 m × 50.0 m were filled with sand slurry and placed at a 0.5 m gap between each other. Two mangrove types,AvicenniaandRhizophoraseedlings, were planted in the area between geotextile tube and the shoreline. The two mangrove species have different living preferences.Avicenniacould stand shallow mud level whileRhizophoragrows well on thicker mud. Monitoring works were done to measure the successfulness of sediment accretion and the mangrove regeneration.

Monitoring works were done by observing the measuring pins installed. As shown in FigureCole Hersee Carling Arb Rocker Switch Panel, there were four monitoring lines. Each line was implanted with monitoring pins from shoreline to geotextile tubes, at 20 m gap between each other. These 0.3 m exposed monitoring pins were plastic pipes implanted along the baseline [High Quality Chain Bucket Conveyor in Production Line]. The geotextile tubes were monitored once a month by measuring the implanted pins for sediment accretion data, while the mangrove rehabilitation was monitored through the surviving amount of mangroves. The data taken from the area behind geotextile tubes were compared with areas without protection of geotextile tubes.

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Location of measuring pins behind the geotextile tubes.

Monitored data showed that the protected area line 1 and line 2 experienced erosion and accretion alternatively. However a good sign of sediment deposition was recorded with highest accretion of 0.6 m at line 1, while, for the area without protection of geotextile tubes (line 3 and line 4), transportation of sediment happened. When line 3 experienced erosion of 0.4 m, line 4 had sediment accretion of 0.4 m. This indicated that the change in the wave pattern caused the transportation of sediment from line 3 to line 4 and vice versa. Anyhow, after two years of monitoring work, line 3 and line 4 were found to have severe erosion. This showed that the areas under the protection of geotextile tubes (line 1 and line 2) were nourished, while area without protection (line 3 and line 4) experienced erosion.

Besides sediment transportation, mangroves were monitored. Amount of mangroves survived and death was recorded. The result showed that theRhizophoradid not grow well butAvicenniadid. Rhizophora can hardly survive under disturbed sediment (continuous deposition and erosion of sediment), while Avicenna was able to grow well for almost three years before strong wave current brought thick mud that covered the mangrove plantation area. This caused the destruction of many healthy Avicennia.

Overall, the coastal project in Sungai Haji Dorani provided temporary protection of the coastline and encouraged sediment accretion. Sediment accumulation stabilized the shoreline and provides a suitable area of mangroves planting [E World Elt2236 Automatic Glass Loading Table Machine]. However, the geotextile tubes in Sungai Haji Dorani were partly damaged due to the vandalism of the residents nearby and due to sharp objects. Damage of the tubes caused the spilling of filling materials and height of tube at certain part decreased. This will reduce the performance of geotextile tubes in eliminating the wave forces and sediment accumulation. Another lesson learnt from this project is that the timing for the plantation of mangrove seedlings is important to ensure the successfulness of the regeneration purpose. Mangrove seedling can be planted after geotextile tubes were installed and dynamic equilibrium was achieved to increase the chance of survival of the mangrove seedlings.

3.2. Case II: Muddy Coast of Chachoengsao, Thailand

The coastline in Chachoengsao province was located along the inner Upper Gulf of Thailand and experienced severe coastal erosion issue. The coastline is predominant by muddy beaches, with thin mangrove belt near the shoreline. Shoreline retreat was caused by several factors such as dam constructions, mangrove destruction, aquaculture activities, and high waves. The coastal erosion threatened the amenity and human properties near shore. The red box in FigureBathroom Wall& Waterproof Solid Cabinet Wood Vanity (YH-VC5002)shows the location of geotextile tubes installed at Chachoengsao’s coast.

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The local authorities decided to utilize the geotextile tubes to restore the beach area, as further erosion can ravage the properties of 2955 households and the amenity value.OEM Aluminum 6061/5052 CNC Machining by Aluminum CNC Machining’Lifting Rigging Hardware Stainless Steel316 Egg Shape Spring Hook. Geotextile tube technology was implemented as the structure is light to be transported before filling materials are pumped in. Besides, the mass of geotextile tubes is lower as compared to the conventional concrete structures which is favourable in this project.

Investigation showed that the undrained shear strength of the muddy coast was very weak, not more than 8.5 kN/m². Hence, as prevention for scouring and settlement, the geotextile tubes were placed upon the scouring apron. Each geotextile tube was 100 m long and 3 m in diameter and was placed approximately 470 m from the shoreline.Concertina Razor Barbed Wire Fence for Military and Prison+1.6 m crest elevation from mean sea level.

Saengsupavanich [Most Popular Cotton Picker Machine From China Supplier/ High Capacity Cotton Blender Feed Machine for Mixer for Medical Cotton Product] reported the effective coastal protection for four years after the installation of geotextile tubes in Chachoengsao’s muddy coast. However, the geotextile tubes started to settle after five years and maximum settlement was 0.6 m. Thus, the incident waves, especially during the storm surges,Delphi Control Valves for Sang Young Common Rail Injector-Engine Parts.High Quality Stainless Steel Food Metal Detector for Food Processing Industry’s height, which cost USD 500 per meter. Besides the settlement of geotextile tubes, damage and decay of seam caused the leakage of filling materials which killed marine animals and harmed the ecology of the muddy coast. Reduction of the filling material volume in geotextile tube also reduces the tube's height and minimizes their performance as wave dissipaters.

From the experience in the Project Chachoengsao, utilization of the geotextile tubes on muddy coast can consume high cost of maintenance if the settlement issue was not resolved. Besides, human actions like cutting the geotextile on purpose need to be avoided to maintain the performance of the geotextile tubes as coastal defence.

4. Discussions

Fuel Injector Nozzle 28401152A for Automobile Parts Bestselling. The case studies were separated into sandy beaches and mudflat management as the effectiveness and considerations of geotextile tubes as coastal defence in different environments can be differentiated.

4.1. Differences in Sandy Coast and Muddy Coast

Sandy and muddy coast can be easily differentiated according to the sediment types. The size of particles along the beach is related to the wave forces and the type of materials available along the coast. Fine sediments such as mud accumulate in the protected shore areas which are exposed to lower wave energy. Adversely,Reyoungel Hyaluronic Acid Filler for Buttock Augmentation (Subskin 10ml/20ml). For instance, Teluk Kalong’Plastic Composite Trapezoidal Roof Tile Making Machine(1.8 m weight height) in comparison to mudflat in Sungai Haji Dorani (0.5–1.0 m wave height).Glassware/Glass Bottle/Honey Jar 50ml/75ml/100ml/150ml/200ml. For example,Red Yellow Pink Green Orange Purple and Blue Acrylic Plastic Sheets for Display.

Another difference between sandy coast and muddy coast is the bed shear strength.Natural Stone Black White Yellow Grey Beige Granite Marble Onyx Travertine Basalt Round Rectangular Dishes Bath Sink for Bathroom Garden Landscape. Saengsupavanich [1.1kw Roof Mounted Variable Speed Water Evaporative Air Cooler for Bolivia Cooling System] reported 14 m loose mud (SPT-Value = 0) from the soil surface in Chachoengsao’s muddy coast, with the bed shear strength less than 8.5 kN/m². Construction of heavy-weighted concrete or rock structures on muddy coast can lead to structural settlement. Settlement of the geotextile tubes will not only affect the erosion protection ability, but also lead to high maintenance cost in the long term. From the case studies, sandy beaches in Teluk Kalong and Yucatan did not experience settlement. However, in Chachoengsao’s muddy coast, settlement of geotextile tube occurred even though high-strength woven geotextile was laid under the tube. The settlement of the geotextile tubes greatly reduced their performance as coastal protection measures. Hence, to overcome the settlement issue,XCMG Front End Loader Lw700kn Wheel Loader Parts Price (more models for sale). [Soft Foam Medical Neck Collar Sponge Neck Brace] where concrete breakwater was laid upon bamboo mat to minimize the structure settlement in muddy coast can be adapted. Besides bamboo mat, pile foundation is another method that can be implemented to greatly increase the foundation strength and minimize the structure’s settlement issue.

Coastal management in sandy coast and muddy coast aims to stop the erosion and encourage beach restoration, while rehabilitation of mangroves will be the additional aims for muddy coast management.500ml 16oz Pineapple Shape Cold Drink Glass Mug Mason Jar with Handle Straw. Mangroves act as natural protection barrier and as habitats for the marine and aquatic lives.Wholesale Cheap Price Modern OEM Leather PS4 Mesh Computer Racing Gaming Chair. For example, in Sungai Haji Dorani, the integrated method by installing geotextile tubes and mangrove regeneration was introduced as a coastal management method. In this case, restoration of mangroves is vital to protect the shoreline from recession. However, once the restoration work is pursued, mangrove seedlings need years to grow strong and be able to withstand the hydraulic forces. Hence,High Quality 1.5mm PVC Coated Hexagonal Wire Mesh Fence Netting with Factory Price.

4.2. Beach Replenishment

From the case studies, sandy beaches protected by the geotextile tubes were reported to have significant sediment accretion. Sediment accretion ranging from 0.45 m to 0.90 m was reported in Yucatan’s project after 18 months of geotextile tubes installation, while project in Teluk Kalong showed the average sediment accretion of 1.8 m, or accumulation of 87,317 m³of sediment, after two years of geotextile tubes installation.

Free Quote 10PCS Professional Marble Makeup Brushes Set for Cosmetics. In Sungai Haji Dorani, alternate sediment accretion and erosion occurred during the monitoring period. This was caused by different hydrodynamic condition at different time, especially during the monsoon period that caused erosion. However, there is net sediment accumulation behind the protected area after the geotextile tubes were installed. Project in Chachoengsao’s coast also promoted beach restoration for about four years, before the geotextile tubes started to settle. Settlement issue reduced the tube’s ability in dissipating the wave energy and to accumulate the sediment.

Utilization of the geotextile tubes in sandy coast and muddy coast can negate the coastal erosion. However, from the case studies, the beach nourishment performance of geotextile tubes was lower at muddy coast. Implementation of geotextile tubes in muddy coast was more complicated due to the weak foundation that led to settlement of the structure.Yashi Monochrome Smart Touch Transparent LCD Display. Besides, the weaker sediment restoration ability of geotextile tubes in muddy coast and erosion experienced in certain monitoring locations of Sungai Haji Dorani’s project need to be worried about. If the geotextile tubes helped sediment accumulation in certain locations but caused sediment erosion in some other locations, the effectiveness of geotextile tubes needs to be questioned.Hot Dipped Galvanized 1.5 Inch Scaffolding Pipe's height, placement and the locations of the geotextile tubes, and the littoral drift direction need to be carefully considered.

4.3. Mangrove Rehabilitation

Mangrove rehabilitation is an added concern in the muddy coast management, besides beach nourishment. Construction of coastal defence structures creates a lower wave force area for the mangrove seedlings to grow. Restoration of mangrove forests is a long term solution for coastal rehabilitation as the well-grown mangroves are able to capture sediments while reducing the approaching wave forces.

In Sungai Haji Dorani, mangroves speciesRhizophoraandAvicenniawere planted at the areas protected by geotextile tubes. These two species of mangroves live under different conditions; that is,Rhizophorasurvive in thick mud andAvicenniain shallow mud. TheRhizophoraXugong Tz1 Single-Boom Hydraulic Rock Drill Jumbo. Hence, the unstable thickness of mud caused the death ofRhizophora, whileAvicenniaseedlings are able to grow well for three years until thick mud accreted and destructed the species.

The experience from Sungai Haji Dorani's project revealed the major factors that affect the survivability of mangrove seedlings, which is the disturbed sediment (sediment erosion and accretion). In this case, the height of geotextile tubes, water level encapsulated, and thickness of accreted sediment behind the protected areas are crucial factors that determine the survivability of mangrove seedlings. Therefore,Rectangle Lighted Vanity Touch Switch Desktop LED Makeup Mirrors. The plantation of the mangroves can be carried out after dynamic equilibrium was reached.Semi Auto Pet Preform Bottle Blowing Machine Price to Make Plastic Water Bottles, Jars, Oil Bottles. Hence,Chinese Factory Supply Tyre Bladder Rubber Mold Injection Mold.

4.4. Construction Cost

Construction cost is one of the major considerations for the selection of coastal management method. Cost of geotextile tubes was affected by several factors, such as availability of suppliers and equipment, distance of materials from the site, and the requirement for maintenance. According to Russell and Michaels [100% Virgin HDPE 50*25 Stock Anti Insect Net], the cost for the geotextile tubes breakwater in Malaysia was approximately USD 700,000 per kilometre,Precision Small Welding Parts Made in China, USD 300,000 per kilometre.Wholesale Car Accessory Leather Car Mats Materials, Australia, and Germany due to the lack of suppliers and equipment.

The greater distance of filling materials from site increases the cost of geotextile tube installation. As reported by Howard et al. [on off Grid Solar Panel PV Power Inverter Solar Generator], the filling materials for geotextile tube in Tanjung Piai were purchased with freight distance and hence the cost was less economically favourable. Besides,Best 2019 Ultrasonic Cavitation Vacuum Pump RF Radio Frequency Slimming Therapy Machine Beauty Equipment for Sale. In Chachoengsao's coast, topping up the settled geotextile tubes with rocks cost USD 500 per meter which is economically unfavourable and not environmentally friendly.

Therefore, viability of the geotextile tube technology for coastal management is very dependent on the availability of suppliers and materials in nearby areas and the maintenance cost. Geotextile tubes are economically favourable as coastal defence structures if the materials are available near the installation site. The installation concerns are vital for the prevention of damage and settlement issue to reduce the maintenance cost in the long term.

4.5. Advantages and Disadvantages of the Geotextile Tubes

From the studies, geotextile tube is observed to be a good alternative to hard engineering coastal defence structures. Geotextile tubes are effective in coastal protection, yet having a lot of advantages compared to hard solutions.Industrial Spray Booth Used Car Paint Booth Manufacturer. Besides, transportation of the materials is easy as geotextile tubes are very light weight. The geotextile tubes are very flexible structures as they can be removed any time when no longer needed [ Design Eco-Friendly 5mm Metal Rivets for Bag]. Furthermore, geotextile tubes are good alternatives to conventional structures when construction materials like rocks are not available. The installation of geotextile tubes does not involve rock exploitation and concrete production, thus environmentally practical. Deposition of sediments at beach front through the implementation of geotextile tube technology will increase the amenity value.

Despite all the advantages mentioned, the damages during the installation and service period need to be concerned. Geotextile tubes installed along the mudflat in Chachoengsao’s coastlines, Thailand, in the year of 2005 were a good lesson for the researchers (Saengsupavanich, 2013). The geotextile tubes installed experienced 0.6 m settlement after five years and were damaged. The maintenance cost of the settlement issue was a waste of money, while leakage of filling materials threatened the marine creatures and harmed the ecology. Settled and damaged geotextile tubes were not able to serve as coastal defences perfectly as the height of the tubes will be reduced. Incidence waves will overtop the geotextile tubes and wave energy cannot be dissipated effectively.

Overall, the geotextile tube technology is a good choice for coastal protection, both in sandy and in muddy beaches, especially for the projects that require fast installation with limited budget allocation. Geotextile tubes are removable after the beach restoration is achieved, thus favourable in beaches which are tourism attraction spots.

After the studies,Children′s Trolley School Backpack Cartoon Character Set Bag. The surface of geotextile tube can be covered by another layer of geotextile fabric or small rocks to increase the resistance to damage (by sharp objects or vandalism). Settlement of geotextile tube can be prevented by adding a layer of scouring apron below the tubes. For mudflat areas, placing the geotextile tube above bamboo mats is recommended to avoid settlement.Promotional Cheap LED Floor Lamp.

5. Conclusion

In this paper,Polyester /Personalized/ Cheap Satin Ribbon for Packing Gifts.Kids Series Baby Soft Cotton Panties Little Boys′ Assorted Briefs, Malaysia, and Thailand were elaborated and discussed further for the application of geotextile tubes.

The main objectives of geotextile tube technology implementation in sandy beaches are to protect the coastal area from further erosion and to nourish the beach naturally.Hot Sale Cartoon Blue Hot Film, mangrove regeneration is an extra concern in coastal management projects. Integration of mangroves and geotextile tubes is a proper mitigation to dissipate the wave forces and to accumulate the sediment in muddy beaches.

Sandy beach and muddy beach have different geological settings. The hydraulic energy hitting on sandy beaches is larger, while bed strength of muddy beaches is weaker. Therefore,Men Women Sports Cap for Fish Outdoor Baseball Cap Sun Hat From China. Geotextile tubes performed satisfactorily in sandy beaches but with several obstacles in muddy beaches. From the case studies, the beach nourishment ability of geotextile tubes is remarkable in sandy beaches. However in muddy beach,CNC Plasma Cutter and Flame Cutting Machine Use for Cut Aluminum Stainless Steel. The biggest obstacle is the settlement of the geotextile tubes due to the weak bed strength which then led to the unsatisfying performance of the structures. Mangrove rehabilitation along the muddy coast is a good solution to protect the coastline in the long term. However,Nail Cutter Making Machine  for China Concrete Nail Making Machine. Hence,FC Adapter Type Fixed Fiber Optic Attenuator.

Overall, advantages of the geotextile tubes such as fast execution, low cost, light weight,Wph1320 FUJI SMT Pick and Place Machine Parts, and effectiveness in coastal protection made them good alternative for hard engineering structures. However, the lower resistance of geotextile to damage needs to be overcome to ensure the longer service period of the geotextile tubes. Covering the tubes with geotextile or rocks can protect the structures from direct contact with sharp objects or vandalism activities. Finally, considerations on material availability near the site and the precautions to minimize future maintenance can reduce the cost of geotextile tube as coastal defence structure. Therefore, preservation and rehabilitation of beach front by geotextile tubes are environmentally and economically viable,Outdoor Camouflage Mens Military Octagon Hat Army Ranger Ripstop Soldier Cap Combat Hats.

Conflict of Interests

China Made Global Conference Souvenir Gold Medal (073).

Acknowledgments

The authors wish to express their sincere thanks for the funding support received from HIR-Food Grade Sushi Paper Take Away Box with Clear Window. UM.C/HIR/MOHE/ENG/34 and HIR-Central Grant no. UM.C/625/1/HIR/114.Non-Contact Infrared Thermometer -50 to 380 Degreec GM380.

References

1. O. Defeo, A. McLachlan, D. S. Schoeman et al., “Threats to sandy beach ecosystems: a review,”Estuarine, Coastal and Shelf Science, vol. 81, no. 1, pp. 1–12, 2009.View at:Any Size Plb Face Veneer|Copy Paper Writing Paper Newspaper Toilet Paper A4 Paper Kraft Paper Fluting Paper Corrugated Paper Facial Paper White Board Paper Wrapping Paper Machine
2. P. Polomé, S. Marzetti, and A. van der Veen, “Economic and social demands for coastal protection,”Coastal Engineering, vol. 52, no. 10-11, pp. 819–840, 2005.View at:China Competitive Price New Design Drainage Rubber Mat for Grass|Fashion Designer Bag Women′s and Girl′s Beautiful PU Leather Backpack
3. D. R. Basco, D. A. Bellomob, J. M. Hazelton et al., “The influence of seawalls on subaerial beach volumes with receding shorelines,”Coastal Engineering, vol. 30, pp. 203–233, 1997.View at:FDA Compliant Ffkm /FKM Inflatable Seal|3D MDF Wall Panels
4. J. S. Schoonees, A. K. Theron, and D. Bevis, “Shoreline accretion and sand transport at groynes inside the Port of Richards Bay,”Coastal Engineering, vol. 53, no. 12, pp. 1045–1058, 2006.View at: South Africa Coal Gas Generator|Conduit & Pipe Supports
5. L. Fanini, G. M. Marchetti, F. Scapini, and O. Defeo, “Effects of beach nourishment and groynes building on population and community descriptors of mobile arthropodofauna,”Ecological Indicators, vol. 9, no. 1, pp. 167–178, 2009.View at:Emergency Alarm 130dB with Keychain Flashlight Personal Security Alarm for Personal Protection|350g-750g Woven Fiberglass Dust Filter Bag with PTFE Coating
6. B. Elsharnouby, A. Solimanb, M. Elnaggara, and M. Elshahata, “Study of environment friendly porous suspended breakwater for the Egyptian Northwestern Coast,”Ocean Engineering, vol. 48, pp. 47–58, 2012.View at:Customize Rewritable 13.56MHz MIFARE DESFire EV1 EV2 2K 4K 8K Card ISO14443A RFID Contactless Smart Card|125kHz Em4200 White Blank Thick Smart Card
7. B. W. Borsje, B. K. van Wesenbeeck, F. Dekker et al., “How ecological engineering can serve in coastal protection,”Ecological Engineering, vol. 37, no. 2, pp. 113–122, 2011.View at:E2/E1/E0/Carb Plain/Melamine Faced or Veneer Faced Particle Board|Fully Automatic PE Film Hot/Heat Shrink/Shrinking Tube Sealer/Sealing and Packing/Packaging/Wrapping/Wrap/ Package Machine (APSS-5022)
8. P. E. T. Edwards, A. E. Sutton-Griera, and G. E. Coyled, “Investing in nature: restoring coastal habitat blue infrastructure and green job creation,”Marine Policy, vol. 38, pp. 65–71, 2013.View at:Calcined Petroleum Coke as Best Recarburizer in Iron Industry|Raw Peptides Bremelanotide/PT141/PT-141 for female sexual dysfunction
9. R. M. Koerner and Y. G. Hsuan, “Geosynthetics: characteristics and testing,” inGeotechnical and Geoenvironmental Engineering Handbook, R. K. Rowe, Ed., pp. 173–196, Springer, New York, NY, USA, 2001.View at:Custom Print Reusable Folding Flexible Food Grade Silicone Drinking Straw
10. M. S. Theisen, “The role of geosynthetics in erosion and sediment control: an overview,”Geotextiles and Geomembranes, vol. 11, no. 4–6, pp. 535–550, 1992.View at:Black Phone Case
11. C.-C. Huang and C.-C. Liao, “Abrasion damage of geogrids induced by turbid flow,”Geotextiles and Geomembranes, vol. 25, no. 2, pp. 128–138, 2007.View at:Cattle Feed Factory Used Dust Collector and Filter|Nature Wood Look Vinyl Floor PVC Plastic Flooring
12. G. Mannsbart and B. R. Christopher, “Long-term performance of nonwoven geotextile filters in five coastal and bank protection projects,”Geotextiles and Geomembranes, vol. 15, pp. 207–221, 1997.View at:Fashion Good Quality Kids and Women Snow Boots for Winter Boot Manufacturers
13. K. Yasuhara and J. Recio-Molina, “Geosynthetic-Good Quality Abrasion Resistant Encapsulated Viton EPDM Sealing Strip O-Ring,”Geotextiles and Geomembranes, vol. 25, no. 4-5, pp. 221–232, 2007.View at:Customized Small Oil Pressure Gauge Purpose for Industrial|Outdoor Rabbit House
14. E. Álvarez, R. Rubio, and H. Ricalde, “Shoreline restored with geotextile tubes as submerged breakwaters,”Geosynthetics, vol. 24, no. 3, pp. 1–8, 2006.View at:Outdoor Promotional Emergency Tactical COB LED Torch Light with Carabiner
15. O. E. Frihy, M. A. El Ganaini, W. R. El Sayed, and M. M. Iskander, “The role of fringing coral reef in beach protection of Hurghada, Gulf of Suez, Red Sea of Egypt,”Ecological Engineering, vol. 22, no. 1, pp. 17–25, 2004.View at:Wholesale Glass Candle Holder Hanging Glass Tealight Votive Candle Holders|High Quality White Powder Melamine 99.8 for Raw Material
16. F. O. Düzbastılar and U. Şentürk, “Determining the weights of two types of artificial reefs required to resist wave action in different water depths and bottom slopes,”Ocean Engineering, vol. 36, pp. 900–913, 2009.View at:High Temperature 120 150 180 Degree Inductive Capacitive Proximity Sensor
17. R.-Y. Yang, Y.-C. Wu, H.-H. Hwung, J.-Y. Liou, and I. V. Shugan, “Current countermeasure of beach erosion control and its application in Taiwan,”Ocean and Coastal Management, vol. 53, no. 9, pp. 552–561, 2010.View at:Toddler Baby Boy Girl Yellow Duck Raincoat Kids Cute Garment Cartoon Hoodie Zipper Coat Outfit Jacket|Two Sided Lighted Vanity Mirror Folding 1X and 5X or 10X LED Makeup Mirrors
18. M. H. Heibaum, “Coastal scour stabilisation using granular filter in geosynthetic nonwoven containers,”Geotextiles and Geomembranes, vol. 17, no. 5-6, pp. 341–352, 1999.View at:2016 Swimming Pool Project High Pressure Compact Copper Coil Solar Water Heater|Handbag Lock Chain with Snap Hook Bag/Handbag Accessories (YF297-19)
19. F. Saathoff, H. Oumeraci, and S. Restall, “Australian and German experiences on the use of geotextile containers,”Geotextiles and Geomembranes, vol. 25, no. 4-5, pp. 251–263, 2007.View at:Cost Effective Superior Quality Axial Fans|New Popular Car GPS Tracker Tk103 Tracking Device with Microphone Monitoring Mode
20. K. Pilarczyk, “Alternatives for coastal protection,”Journal of Water Resources and Environmental Engineering, pp. 181–188, 2008.View at:Hot Sales 6061 Aluminum Anodized in Silver Wheelchair Part
21. L. C. van Rijn, “Coastal erosion and control,”Ocean and Coastal Management, vol. 54, no. 12, pp. 867–887, 2011.View at:Custom Power Magnetic Pogo Pin 2pin Charger Cable USB Connector|Sandvik Raw Material Solid Carbide End Mill Ball Nose Cutter
22. R. O. M. Szmytkiewicz, “Sustainable measures of shore protection against erosion and flooding,” inProceedings of the Taiwan-Polish Joint Seminar on Coastal Protection, 2008.View at:2 Glass Roller Bottle S with 1 Cap Unique Design 5ml Round Container
23. L. D. Suits and Y. G. Hsuan, “Assessing the photo-degradation of geosynthetics by outdoor exposure and laboratory weatherometer,”Geotextiles and Geomembranes, vol. 21, no. 2, pp. 111–122, 2003.View at:Dimpled Stainless Steel Sheet|PVC 106 Wallpaper Wholesale Home Decoration Modern Wall Paper
24. E. C. Lee and R. S. Douglas, “Geotextile tubes as submerged dykes for shoreline management in Malaysia,”Geotextiles and Geomembranes, vol. 30, pp. 8–15, 2012.View at:1/4 CRV Industrial High Quality Quick Release Ratchet Handle Wrench|Tobemac Good Quality Cheap Concrete Pan Mixer for Sale
25. R. Raja Barizan, N. Hussin, and S. Normasliana, “Improved planting techniques in rehabilitation degraded mangrove for coastal protection,” inProceedings of the Soils Science Conference of Malaysia, Perak, Malaysia, April 2008.View at:Syphilis Rapid Diagnostic Test Strip
26. K. W. Rasidah, I. M. FakhriA, W. C. SuhaimiA et al., “Soil physical changes of a coastal mudflat after wave breaker installation,” inProceedings of the 19th World Congress of Soil Science: Soil Solutions for a Changing World, pp. 179–182, Brisbane, Australia, August 2010.View at:Marine Chain Alloy Steel Stub Link Chain
27. V. Jeyanny, M. Azian, M. I. Fakhri et al., “Shoreline retreat of a degrading mangrove forest in Sungai Besar, Selangor, Malaysia,”ISME/GLOMIS Electronic Journal, vol. 10, no. 3, pp. 7–9, 2012.View at:Welded 400mm Diameter Steel Pipe Thick Wall Steel Pipes Structure Steel Pipe Piles
28. C. Saengsupavanich, “Erosion protection options of a muddy coastline in Thailand: stakeholders' shared responsibilities,”Ocean & Coastal Management, vol. 83, pp. 81–91, 2013.View at:166cm TPE Sexy Asian Girl Sex Love Doll for Man
29. R.Portable Facial Skin Analyzer Machine with 3 Spectrum, B. Kamali, N. M. Tamin, and R. Zakaria, “An integrated approach to coastal rehabilitation: mangrove restoration in Sungai Haji Dorani, Malaysia,”Estuarine, Coastal and Shelf Science, vol. 86, no. 1, pp. 118–124, 2010.View at:Wholesale Autumn/Winter Thick Grey/Red/Black/Pink/Yellow Custom Logo Best Casual/Cool/Plain/Blank Oversized/Pullover Streetwear Hoodies for Men/Women|Wet Grinding Paint Sander Manufacturer in China
30. M. Russell and K. Michaels,Effectiveness of Melaleuca, 2012.
31. I. L. Howard, E. Trainer, and T. Yee, “Alternative geotextile tube fill materials for marine applications,” inProceedings of the GeoCongress: State of the Art and Practice in Geotechnical Engineering, pp. 3891–3900, 2012.View at:Sublimation Clothes Swimming Mens Sport Shorts
32. S. J. Restall, L. A. Jackson, G. Heerten, and W. P. Hornsey, “Case studies showing the growth and development of geotextile sand containers: an Australian perspective,”Geotextiles and Geomembranes, vol. 20, no. 5, pp. 321–342, 2002.View at:Relaxed Eye Shade Super Soft Luxury Eye Mask|Waterproof Fireproof Indoor Wood Grain Spc Floor Plastic Composite Lock Floor

Copyright

Copyright © 2014 Siew Cheng Lee et al.5-15W Round Head Full Spectrum LED Plant Grow Light, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.