Xinjiang Large Reservoir Leak Detection

Background

Water-conservancy infrastructure across Xinjiang serves critical agricultural irrigation and ecological recharge missions, yet faces extreme diurnal and seasonal temperature swings, intense UV exposure and frequent wind-blown abrasion — a severe test for any geomembrane lining system. SENEVEN delivered systematic electrical leak detection across two construction phases on a major flatland reservoir to safeguard water-supply integrity.

Challenge

On a Gobi-fringe site, > 50 °C diurnal temperature swings drove liner thermal cycling, while wind-blown abrasion and construction-vehicle traffic introduced a mix of pinhole, mechanical and seam-failure defect types. Uneven gravel-cover thickness further required dynamic tuning of dual-electrode response parameters by zone.

Solution

During the exposed-liner phase, the full main liner was scanned with arc-testing to flag welding and mechanical defects. After overburden placement, the dual-electrode method (ASTM D7007) was deployed on a zoned grid for overall integrity verification, with electrode spacing and excitation voltage tuned by gravel-cover thickness. Every flag was delivered as a GIS-coordinated report enabling targeted repair by the owner.

Results