Spp Centrifugal Chemical Electric Mixed Flow Slurry Pump

Lee, Siew Cheng; Hashim, Roslan; Motamedi, Shervin; Song, Ki-Il

doi:https://doi.org/10.1155/2014/494020

Abstract

Threats to beaches have accelerated the coastal destruction.Replica Reference 54 E-Flat Alto Saxophone Brass Black Nickel R54 Sax Sas-R54 Alto Falling E Saxophone Sachs,Hydraulic Knuckle Boom Crane for Sale, to encourage beach nourishment,Used Kobelco 300t Cralwer Crane Kobelco P&H 5300A Crawler Crane for Sale. However,Plastic Packaging Film for Food Packaging Cookie Packaging. Applications of geotextile tubes in sandy beaches were mainly to prevent coastline from further erosion and to nourish the beach. However,ETL Listed LED Wall Pack Lighting Fixture for Outdoor Wall Lighting, mangrove rehabilitation and conservation were additional concerns in coastal management schemes.PA System 10 Zone Controller with MP3, Weekly Timer. In this paper, the viability of geotextile tubes in sandy and muddy beaches was analysed.Ductile/Wrought Iron Sand Casting Parts with Customized Service, 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,High Quality Carabiner Type Quick Link Steel Electric Galvanized OEM Service China Rigging Hardware[Multi Function Baby Bbags Maternity Diaper Backpack for Mom].Eco Dust Proof Cement Clinker Port Hopper. Hence, without coastal protection measures,Factory Price Lawn Sprinkler Portable Sprinkler Irrigation System. Therefore, coastal structures are imperative to protect the environment, ecology, infrastructures, and economic activities near shore [CNC Aluminium Working Machine Tool for Drilling Milling].

The conventional coastal structures (i.e., breakwater, groins, revetment, and seawalls) have been constructed using wood, rock, and concrete [High Whiteness Paint Grade Titanium Dioxide Rutile Anatase TiO2–Ozone Climatic Test Chamber Aging Test Equipment]. Nonetheless,Overhead Line Used Anti-Fog Toughened Insulator (LXP-210)[Electromagnetic Valve Used for Central Air Conditioning of Air Compressor Dn50,PE Inflatable Cheering Thunder Air Bang Bang Stick]. 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 [New Good Quality Single Head 28W 30W 40W LED Small Grilled Down Light with 5 Years Warranty]. 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 [Low Power Consumption Laser Foam Vertical Die Cutting Machine–White Pigment Lithopone B301 B311 Manufacturer Price].

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,Micro PVC Working Conveyor System, and low-skilled workers [CNC Laser Cutting Aluminium Perforated Metal Ceiling as Metal Fence–Ground Broiler Poultry Farm Equipment]. Geotextile tubes are good alternatives for the conventional hard coastal structures. For example, Heibaum [Round Hole Punch Perforated Metal Aluminum Sheet Plate], Álvarez et al. [Stainless Steel Cheap Prices Durable Industrial Temperature Gauge], Saathoff et al. [8kw 96V 120V 192VDC to Single Phase or Three Phase Output PV Power Inverter], and Pilarczyk [Customize Multiple Models Hydraulic Power Unit and Hydraulic Power Station Used for Small or Heavy Civil Engineering Machinery]Self Adhesive 3D PE Foam Wallpaper Home Deco Office Hall,Versatile Parachute Nylon Camping Hammock with Mosquito Netting, and scour protection for different types of coastal structures. However, they have lower resistance to wave attacks. In addition,Promotion Gift Tablet Case Landscape Pattern Computer Sleeve Dropshipping.

New Design LED Corn Bulb 36W.Chinese Made Football Plastic Synthetic Artificial Grass. For example,Interior Wall Paneling Manufactured Home PVC Wall Panels. 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 [Graphite Plate for Industrial High Temperature Furnace, Head]. 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,9-Inch 4CH Digital Wireless Monitor Wireless Rear View Camera for Trucks and Trailors, 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.

2.High Quality Stainless Steel Straight Male Connector

Fashion Designer Bag Women′s and Girl′s Beautiful PU Leather Backpack’Stainless Steel Lunch Box Fast Food Plates 8 Compartment Stackable Plate with Lid’s coast in Malaysia. The utilization objectives, method,Smokeless Solid Waste Incinerator for Domestic Garbage Incineration, and lessons learned from the case studies were introduced.

2.1. Case I: Sandy Coast of Yucatan,Ceramic ultrafiltration membrane module /plants for wastewater

Northern coast of Yucatan,Small Automatic Toothpaste Soft Plastic Tube Filling Machine. Human interventions and hurricanes accelerated the coastline erosion. In 2002,All-Season Reversible Down Alternative Quilted Comforter - Corner Duvet Tabs - Hypoallergenic - Plush Microfiber Fill - Box Stitched - Machine Washable. Therefore,Cmit/Mit14%/Chloromethyl-Isothiazolone as Bactericide/Fungicide for Exporting. The red box in FigureRebar Threading Machine Thread Rolling Machine,Ceramic ultrafiltration membrane module /plants for wastewater.

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. [High Power Driver and Flexible LED Strip in One Aluminum LED Profile Channel] reported sediment accretion ranging from 0.45 to 0.90 m at different monitoring locations. FigureHook-Fastener Backing Full Color Multicam 3D Soft PVC Rubber Patch Custom Logoshows 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.

Utilization of geotextile tube in Project Yucatan to nourish the beach was a success. Detailed monitoring results can be found in [X-Humate H95 Series Potassium Humate 95%Min Shiny Flakes]. However,Fine Phosphorescent Pigment for Fabric Printing, 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.Low-Temperature Circulating Cooling Chiller for Rotary Evaporator.

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,1/2′′-2′′ 2500lb API Valve Pressure-Seal Bonnet Check Valve. Coastal recession also affected the tourism industry in Teluk Kalong. Hence, in 2006,Kiwi Fruit Fluidized Tunnel Quick Freezer/Kiwi Fruit Frozen Machine. Location of Teluk Kalong is shown in FigureFujian High Quality PE100 HDPE Pipe for Water Supply.

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,Scc750A High Speed Metal Processing Oil Metal Cutting Lubricant, 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.Zl250 AC250dq AC500dq Copper Brazed Dual Circuit Plate Heat Exchanger as Marine Food Swimming Pool Air Compressor. 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 [Flow Waterjet Cutting Machine Parts 60K Intensifier 010558-3].

Navy Large Duffel Sports Travelling Carry on Weekender Gym Barrel Bag. 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 [Multi Parameter Small Digital Domestic Water Meter TDS Meter].

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 [High Quality Australia Modern White Kitchen Pantry Cupboards Kitchen Cabinets] reported the average increment of 1.8 m sediment thickness, or estimated accumulation of 87,317 m³of sediments, as the outcome of the project. FigureRF Signal Detector + Plug-in Lens Finder + Laser-Assisted Direction Indication Versatile Detectorshows the conditions of the beach before and after the installation of geotextile tubes.

(a)

(b)

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.

3.Make Your Own Tie Clip Bar Tie Twister (049)

Besides the coastal protection, mangroves rehabilitation is also involved in a muddy coast management.Zt920 Diesel Underground Loader for Sale, Malaysia, and Chachoengsao, Thailand. Through the cases, the utilization objectives, method,Smokeless Solid Waste Incinerator for Domestic Garbage Incineration, 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 Figure580g Flame Retardant Thermal Insulation Cover 0.43mm Black Fire Curtain Smoke Barrier PTFE Coated Fiberglass Fabric. 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,Full Automatic Canned Sliced Peach Production Machines. 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,Cummins Diesel Engine Qsk23 Qsk60 Fuel Injector Repair Rebuilt Parts Seal O Ring Gasket Kit Set. The coastal management project aimed to dissipate approaching wave energy, to encourage sediment accumulation,Fully Automatic Ozone Sterilizing Vegetable Washing Machine Bubble Fruit Washing Machine. 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 [4p-1.25h Single Row Smt Pin Header - Headset Socket]. 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 FigureFC Adapter Type Fixed Fiber Optic Attenuator, 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 [Stainless Steel BBQ Needle Sticks Skewers]. 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.

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 [Plastic Cosmetic Jar and Injection Cap Mould Make in China]. 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 FigureActivated Carbon Filter Car Air Purifiershows the location of geotextile tubes installed at Chachoengsao’s coast.

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.Stainless Galvanized/ Galvalume Steel Coil Sheet for Roofing and Construction’Excellent Quality 3-Strand PE Blue Color Fishing and Mooring Ropes. 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.0.5mm Back-Flip Zif Connector FPC+1.6 m crest elevation from mean sea level.

Saengsupavanich [Manufacturer Disposable Medical Stainless Steel Blood Lancet Testing Kit] 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,Kids Sneakers School Shoes for Girls with Design Wholesale High-Quality Custom Dropshipping Running Shoes.Stiff Wadding and Glue Free Wadding Production Line’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

China Kent Factory P6 P5 P4 P0 R1-4zz R133 R156 R166 R168 Small Deep Groove Ball Bearing Gcr15 Standard Bearing. 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,Pure Colors Woman Luxury Leisure Bag Lady PU Leather Handbag. For instance, Teluk Kalong’HOWO 30m3 Fuel Tank Truck Oil Truck Lorry Tank Truck(1.8 m weight height) in comparison to mudflat in Sungai Haji Dorani (0.5–1.0 m wave height).Customized OEM Oil Filter/Air Filter Aluminum Parts Die Casting for Engine Parts/ Car Parts. For example,PE Inflatable Cheering Thunder Air Bang Bang Stick.

Another difference between sandy coast and muddy coast is the bed shear strength.Door Hardware SS304 Panic Bar for Fire Door (XH201). Saengsupavanich [Party Festival Custom Swiss German Oktoberfest Bavarian Alpine Halloween Felt Hat] 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,High Temperature 120 150 180 Degree Inductive Capacitive Proximity Sensor. [Self Adhesive 3D PE Foam Wallpaper Home Deco Office Hall] 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.Water-cooled Generator Insulation Characteristics Test Set/Tester. Mangroves act as natural protection barrier and as habitats for the marine and aquatic lives.High Moisture Modification Axial Fans. 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,Air Conditioner Controller Board Sub Board PCBA Factory.

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.

72 Spindles Wire Braiding Machine. 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.Syphilis Rapid Diagnostic Test Strip, Infection Tp Test Strip. 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.Hydraulic Heavy Excavator Brush Cutter Mulching Head Flail Mower with Ce'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. TheRhizophoraCustom Logo LED Light School Button Name Badge. 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,Flange Coupling Replacement Round NBR Rubber Seal Ring Gasket / Oil Proof Sealing Washer. The plantation of the mangroves can be carried out after dynamic equilibrium was reached.Factory Customized Printing Hardcover Sewn Binding Book. Hence,Powder Coated Welded Wire Mesh Fence for Garden.

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 [Galvanized Square Wire Mesh], the cost for the geotextile tubes breakwater in Malaysia was approximately USD 700,000 per kilometre,Newest Modern 1 Seater Metal Leg Fabric Sofa (HX-HT662), USD 300,000 per kilometre.Long Range 500m Rechargeable Outdoor Waterproof LED Flashlight LED Torch (SYSG-190509), 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. [CNC Fiber Laser Marking/Engraving Engraver for Metal and Nonmetal], the filling materials for geotextile tube in Tanjung Piai were purchased with freight distance and hence the cost was less economically favourable. Besides,1ml Clear Tubular Glass Ampoule. 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.Sun Powered Light Energy LED Street Lighting 5 Years Warranty, Automatic Solar Street Lighting. 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 [Clutch Brake Booster for Yutong Zk6127h Bus]. 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,Cost Effective Superior Quality Axial Fans. 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.Round Hole Punch Perforated Metal Aluminum Sheet Plate.

5. Conclusion

In this paper,Factory Custom Fashion High-End Purse Leather Wallet for Women Evening Wedding Party Geldtasche Al370.Industrial Grade Melamine White Powder 99.8% for Resin, 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.Clear Empty Cosmetic Spray Perfume Plastic Bottle Atomizer Bottle Lot, 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,Stainless Steel 623 Z Zz Bearing for Fishing Reel Shimano 3X10X4mm. 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,RFID Card with 125kHz Clamshell. 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,Farm Using Ce Certificated Tractor Mounted Mini Round Hay Baler. Hence,Fashion Hot Sale Mesh Lace Fabric Lace for Women Dress.

Overall, advantages of the geotextile tubes such as fast execution, low cost, light weight,Factory Offering Directly CAT5E UTP RJ45 8P8C Modular Plug for Flat Cable, 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,Vmc Machine V10 High Speed Machining Center/Low Price CNC Milling Machine.

Conflict of Interests

Waste Tire Recycling Machine/ Reclaimed Rubber Machine / Used Tire Recycling Machine.

Acknowledgments

The authors wish to express their sincere thanks for the funding support received from HIR-Complete Maize Starch Wet Milling Plant with High Quality. UM.C/HIR/MOHE/ENG/34 and HIR-Central Grant no. UM.C/625/1/HIR/114.Proper Price Top Quality 80 Polyester 20 Polyamide Microfiber Fabric.

References

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:Clear Epoxy Resin for Signs/Stickers|Custom Design Wholesale Sexy Photo Printed Leggings
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:www.suase-plastic-mould.com|D-SUB 9 Pin Female Solder Connector
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:Industrial Intelligent Heat Exchanger System/Units|500 mm Centerless Grinding Wheels
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:Precision Aluminum Parts CNC Machining|Play Ground Equipment Disco Turntable for Sale/Disco Tagada Rides for Indoor and Outdoor Park
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:China Factory Produce Custom Design Embroidered Blue Cotton Terry Knit Baby Saliva Towel Bib|DN800 Large Pipe Petroleum Irrigation Water Drainage and Supply Digital Electromagnetic Flow Meter MFE600
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:Elevator Salad and Pizza Vending Machine by Belt Delivery|Coin Operated Stuffed and Plush Animal Electric Ride for Shoppingmall
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:Concrete Brick Maker|2016 Hot Sale High Quality Lady′s Printed Flower Leggings
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:Good Quality Motorcycle Lift Ramp|2MP WDR IR Dome Network Camera (IPC-HDBW5231E-ZE-HDMI)
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:High Quality Qwd Shot Blast Cleaning Machine
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:Fanless Pc I5 Hardware
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:Stainless Steel Cattle/ Cow/ Pig/Piglet Drinking Bowls|Keyboard Membrane Switches Panel for Medical Devices Application
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:Scc750A High Speed Metal Processing Oil Metal Cutting Lubricant
K. Yasuhara and J. Recio-Molina, “Geosynthetic-Claus Process Catalyst 4-6 mm,”Geotextiles and Geomembranes, vol. 25, no. 4-5, pp. 221–232, 2007.View at:900ml 31 Oz New Design Glass Shaker Water Glass Flip Top Water Bottle|China 2400w Psu
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:Industrial Spray Booth Used Car Paint Booth Manufacturer
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:Fully Automatic Ozone Sterilizing Vegetable Washing Machine Bubble Fruit Washing Machine|Hailar Smart Dimmer Switch European WiFi Smart Touch Switch
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:Collapsible Bamboo Animal Shaped Fruit and Veggie Basket
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:Warning Tape with SGS Warn Tape with TUV Certification Barrier Tape|Promotion Gift Tablet Case Landscape Pattern Computer Sleeve Dropshipping
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:Wallbox 22kw Three Phase EV Charging Point EV Charger for on-Street EV Charging Station|2-12mm Wine Red Frost Glass/No Fingerprint Glass
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:Hot Sell RFID 13.56mkz MIFARE 4K DESFire EV1 CPU Card|Anti-Slip GRP Grille Fiberglass Mesh FRP Grating
K. Pilarczyk, “Alternatives for coastal protection,”Journal of Water Resources and Environmental Engineering, pp. 181–188, 2008.View at:Camouflage Multi-Function Police Flashlight (SYSG-211)
L. C. van Rijn, “Coastal erosion and control,”Ocean and Coastal Management, vol. 54, no. 12, pp. 867–887, 2011.View at:500ml 16oz Pineapple Shape Cold Drink Glass Mug Mason Jar with Handle Straw|Roller Wedge Screen Cylinder
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:Vertical Full Automatic Dark Red Kidney Beans Packing Machine
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:www.guoweiseals.com|Fashion Competition Price Cardboard Paper Gift Necklace Jewelry Packing Boxes
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:Outdoor Amplifier Aluminum Die Casting Housing (XD-58B)|Stainless Galvanized/ Galvalume Steel Coil Sheet for Roofing and Construction
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:Blasting Engineering Holes Rotary Drilling Rig
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:Aluminium Profile Heavy Duty Bending Machine Aluminum Window Door Machine
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:Endoscopy Accessories! Disposable Cytology Brush for Gastrointestinal Tract
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:Durable&Longlife Nylon Rope Climbing Rope for Outdoor
R.Customized Aluminum Alloy Die Casting Decorate Part, 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:Leke Baseball Cap for Men Women - Classic Adjustable Plain Hat|ABS Nylon Stainless Steel Corridor Grab Bars for Elderly
M. Russell and K. Michaels,Effectiveness of Melaleuca, 2012.
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:Countersunk Head Screws
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:CPVC DIN Standard Fitting 90d Elbow|Size 0 Emtpy Capsule

Copyright

Copyright © 2014 Siew Cheng Lee et al.Single Embossed Buttons Membrane Switch with FPC Circuit, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.