Home | Info Hub > Resources > Case Studies > MATFLOW for Leakage Detection & Gas Venting, Al Hefaiya Lake, Kalba City, UAE
Kalba City, Sharjah United Arab Emirates
Hydraulic Applications
Drainage Composites
The Al Hefaiyah Lake project, located along the Sharjah-Kalba Road, incorporates a robust liner protection system featuring APEC’s MATFLOW Geocomposite drainage. Designed to prevent pressure build-up beneath the geomembrane, the system efficiently manages both water leakage and gas accumulation, thereby safeguarding the integrity and functionality of the 132,000 m² reservoir. Integrated with a network of engineered pipes for runoff and rainwater harvesting, the project demonstrates a sustainable and technically advanced solution for water storage in challenging terrain
Download Case StudyThe accumulation of water pressure caused by leakage or gas generation beneath the liner system can lead to the formation of uplift deformations ("whales" and "hippos") that compromise the integrity and intended functionality of the lake
APEC’s MATFLOW Geocomposite drainage was installed beneath the lake liner system to efficiently manage leakage and gas accumulation. Infiltrating water is drained to the lower gradient, while gases are captured at high points and conveyed through the drainage layer into perforated pipe systems for safe collection and removal.
Strategically located along the Sharjah-Kalba Road, Al Hefaiyah Lake spans 132,000 m² and holds approximately 155 million gallons of water. Built in hilly terrain, the lake includes a geocomposite drainage layer beneath the geomembrane liner to ensure efficient water and gas drainage. A supporting pipe network manages surplus water, rainwater harvesting, and valley run-off, making the reservoir both technically advanced and sustainable.
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