Sungai Choh Riverbank Protection, Malaysia_GEOTUBE GT350M31
From poor subgrade performance to roadway resilience
MIRAFI H2Rx repairs, weak and cracked roads in traffic-heavy Pulau Indah, Malaysia. MIRAFI H2Rx was installed for separation, mechanical stabilization and moisture management, providing the solution to building durable climate-resilient roadways.
When traditional sand bunds fail: A GEOTUBE marine solution for land reclamation
When traditional sand bund construction failed on an extremely soft marine clay seabed, GEOTUBE® Marine systems provided a stable containment solution that helped advance a land reclamation project for 112 acres.
GSE HD geomembrane lined salt ponds ensure long-term brine containment
GSE® HD geomembrane lined over 3.4 million m² of evaporation ponds to prevent brine seepage under extreme heat and UV exposure. This continuous barrier eliminated salt discharge and protected the surrounding environment.
The housing developments near Sg. Choh in Selangor, Malaysia experiences high surface runoff, causing a significant increase in the river's water volume. This has led to severe erosion along approximately 200 m (656 ft) of the riverbank, posing a risk of collapse.
To address this issue, the Malaysian Department of Drainage and Irrigation (DDI) assessed various erosion protection methods and selected a combination of gabions and large geobags as the preferred solution. GEOTUBE® GT350M31 woven Geobags were chosen due to their cost-effectiveness and ease of filling and handling.
To ensure durability during installation, every GEOTUBE GT350M31 Geobag undergoes rigorous fabrication and testing to withstand installation stresses without bursting. These geobags are made from heavy-duty woven tapes and sewn to withstand rough handling. The fabric used in manufacturing the bags retains soil particles even under varied hydraulic, dynamic, and abrasive stresses.
Before installing the geobags, the targeted river section was trimmed, and a layer of MIRAFI® Polyfelt® filter geotextile was placed over the prepared soil. The geobags were then laid in an overlapping shingle style to maximize embankment stability. Solmax provided a simple filling frame to the sub-contractor for efficient filling, and nylon lifting straps were used to position the bags.
Once laid, the bags were covered with soil, compacted, and protected by a layer of PROPEX® Polymat® Erosion Protection matting. The matting was filled with soil, followed by hydoseeding. To shield the hydrosed from rain, a light dusting of topsoil was applied to the surface.