谈悬挂式止水帷幕基坑承压降水

Discussion on pressure-bearing precipitation of hanging waterproof curtain foundation pit

悬挂式止水帷幕基坑,由于围护未隔断承压含水层,坑内降水将导致坑外地下水径流补给,坑外地下水损失可能引发周边地表沉降,因此悬挂式止水帷幕基坑承压降水方案设计至关重要。基于某地铁车站基坑对悬挂式止水帷幕基坑承压降水方案设计进行分析、总结,供类似工程借鉴。

The hanging waterproof curtain foundation pit,because of the enclosure was not isolated from the pressurized aquifer,the precipitation in the pit would lead to underground water runoff replenishment,the underground water loss outside the pit might cause the surrounding surface subsidence,therefore,the pressure-bearing precipitation design was very important of hanging waterproof curtain foundation pit,based on the foundation pit of a subway station,analyzed and summarized the pressure-bearing precipitation scheme design of hanging waterproof curtain foundation pit,provided reference for similar engineering.