灌浆修补填埋场防渗层技术研究

Landfill has been widely adopted as a waste disposal inland. There is still have no a economic and efficient means for the patch of liner leakage if the landfill has been closured or operation. The author come up with taking the grouting technology for the leakage repair of landfill liner system, which is currently the first case at home or abroad, and through small pieces of test, simulator experiments, and the examination room tests make a feasibility study. Studies have shown that the existing filling material can meet the requirements basic and the cement-based patching material is better than the others. Backwashing filling approach, while complicated operation, but plugging result is very good. Filling repair landfill liner is feasible, which is worth for the further study.