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For marine pollution control, coastal and shoreline protection to effectively address environmental concerns
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For the protection of critical infrastructure and other high-security areas
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For marine pollution control, coastal and shoreline protection to effectively address environmental concerns
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For the protection of critical infrastructure and other high-security areas
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Over the last few years, weather patterns around the world have shifted. We see violent storms becoming increasingly frequent. Coupled with the risk of rising sea levels and erosion, especially on sand-based islands, the need for coastal protection is fast approaching the ‘must-have’ status. For more insights on this global challenge, refer to our previous blog post on coastal erosion.
This is where geosynthetic containers come in. They are also known as GSCs, geotextile tubes and bags, geotubes and geobags, or coastal protection containers. Billed as an alternative solution for coastal protection or temporary marine structures, the containers are manufactured from geotextile materials and filled with sand. This creates durable and long-lasting barriers against rough marine environments and inclement weather.
Geosynthetic containers are three-dimensional systems that provide stable and effective coastal protection. They are low impact, both environmentally and visually. These systems are not sandbags or bulker bags, as is commonly misunderstood. They require a precision-engineered approach for installation. The containers come in a variety of sizes, ranging from 600 kilograms up to in excess of 650 tonnes within our range. This weight provides stability. It allows for projects to be designed and constructed in high wave energy coastal areas. Waves in these areas can reach more than 12 meters in height.
Hidden revetments: We commonly use these when constructing artificial islands. The tubes are used to ensure there is no erosion beyond a certain point on the beach. The revetments are buried in the sand. They are not visible above the ground.
Groynes or the core of breakwaters: In this application, the tubes form the core of the structure. Once filled with sand and installed in place, they are covered with a layer of geotextile and rocks of varying sizes.
Artificial reefs: Coastal protection tubes installed on the seabed form a key part of coastal protection plans. They dissipate and break up wave energy. This improves the stability and longevity of the coast due to the lower wave energy.
Furthermore, these geotextile structures encourage the growth and diversity of marine life. They particularly benefit soft corals and kelp. Thus, they significantly enhance the local marine ecosystem.
Beach toes: These structures appear at the end of a perched beach and help stop sand erosion. They create a stabilized beach without creating a visual impact or posing a safety risk, thanks to their soft design. They also eliminate the need for a rock breakwater.
Our in-house engineered Coastal Protection Containers have served several projects worldwide. These projects include hospitality venues such as the Hilton Abu Dhabi, Sheraton Jumeirah Beach Resort and the Fairmont Ajman in the United Arab Emirates (UAE). Other projects include the Red Sea Marine Life Institute in Saudi Arabia, Jangwani Beach in Tanzania, and many more.
Recently, our Ecobag Coastal Protection Containers were deployed for the La Mer redevelopment project in Dubai, the UAE. Filled with locally sourced sand, these containers provide a sustainable solution for coastal defense. They ensure the longevity and safety of the infrastructure. While we did not perform the installation, our containers effectively protected the structures from the waters of the Persian Gulf.
Using geosynthetic containers has proven to be a more cost-effective alternative on projects where rocks are not readily available. On such projects, the transportation of rocks from quarries via trucks or barges drastically increases costs. However, with geosynthetic containers and the ease of availability of local sand, we minimize costs, time wasted, logistics and other associated expenses.
In addition, since we can easily customize the size and dimensions of GSCs, they offer greater flexibility compared to rock-based structures. This also has several environmental benefits. The footprint of GSC structures is often smaller than rock-based ones. Additionally, it causes less disruption to delicate marine ecosystems. Once the structures have fulfilled their purpose, we can repurpose the sand. This reduces material wastage. Our geotextiles are biodegradable, making them the eco-friendly option.
Last but not least, Ecocoast’s calculator, Geoforce, provides an additional benefit. The calculator’s function is to verify whether a certain type of geobag or geotube can withstand the environmental conditions of the installation site.
We use Geoforce to confirm the stability of different structures made from GSCs, such as groynes, revetments, breakwaters and causeways. The calculator is highly customizable. It can incorporate GSCs of any size made from both woven and non-woven geotextiles. Depending on the input parameters, the calculator generates results. These results verify whether the defined structure is stable under the wave and current condition provided.
The calculator can also add a layer of armour rocks on top of the GSC structure. It can run calculations to identify the nominal diameter of the rocks to be used in the area.
Explore how our coastal protection containers can provide a durable and sustainable solution for your projects.
Contact us today for more information.
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