Taman SPPK, Segambut, Malaysia Stormwater development MIRAFI HPa
Taman SPPK, Segambut, Malaysia Stormwater development MIRAFI HPa
Taman SPPK, Segambut, Malaysia Stormwater development MIRAFI HPa
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.
Jefferson Coal Slurry Impoundment Closure
In Jefferson County, Alabama, MIRAFI® CR440 was used with CCR fill to create a reinforced construction platform over soft fine coal refuse, supporting safe equipment access and efficient coal slurry impoundment closure.
Ensuring secure tailings containment at Saudi Arabia’s Umm Wu’al Phosphate Project
Solmax supplied 900,000 m² of double-sided GSE® HD FrictionFlex geomembrane for Maaden’s Umm Wu’al tailings ponds in Saudi Arabia, meeting strict quality controls and ensuring flawless containment in extreme conditions.
Climate change and poor water resource management, such as river channel and floodplain mismanagement, have increased flooding and erosion problems. Insufficient drainage and sewerage capacity in urban areas exacerbates the risk of flooding. To address these issues, detention and retention systems are commonly employed in urban planning and development to prevent flooding.
This project is located at Taman SPPK, Segambut in Malaysia. Due to inadequate drainage, the area faces a high flood risk during intense thunderstorms. To mitigate this, an underground stormwater detention system called StormTrap® Double Trap was implemented. This system stores water runoff in an underground chamber before releasing it back into the drain. StormTrap is a leading provider of stormwater management systems that offer cost-effective solutions for engineers, owners, and municipalities. The land above the underground system will be utilized for playgrounds and parking lots. However, the construction was hindered by soft subgrade soil.
The project area had a soft soil depth of 7.0m (22.97 ft), with the groundwater table nearly at the same level. The soft soil consisted of 3.0m (9.84 ft) of marine soft clay at the top and 4.0m (13.12 ft) of very soft sandy silt at the bottom before reaching firm ground. To address the issue of the soft subgrade, a stable load transferring platform was required to support the underground stormwater detention system.
The construction process began with the installation of sheet piles around the entire project perimeter, followed by excavation to the designed depth for the load transferring platform. Bakau piles were installed with a spacing of 500mm (19.69 in). A thin layer of soil was then backfilled to create a flat surface for laying the geotextile. MIRAFI® HP380a geotextile was placed over the entire platform area. Finally, a 500mm (19.69 in) thick layer of compacted aggregate fill was added on top of the MIRAFI HP380a geotextile to complete the construction of the stabilized load transferring platform. The subsequent construction involved installing the StormTrap system and backfilling the soil on top.
Geosynthetics, such as MIRAFI HP380a geotextile, have proven to be effective in enhancing the performance of roads and load support structures. The MIRAFI HP380a geotextile provides functions of separation, reinforcement, lateral confinement, and permeability, which help stabilize the soft subgrade and transfer the load from the stormwater detention system to the piles.