真空井点降水技术在昆明地区深基坑施工中的应用

真空井点降水技术是目前深基坑施工中较为先进可靠的降水、止水技术。该技术在地层中形成的"小降水漏斗"和"真空止水帷幕",能有效降低地下水位,降低基坑内土层的含水率,改善土体的物理力学性能,增加土层的承载力,达到安全文明施工、缩短施工周期、节省施工空间、节省工程造价的目的。

Application of Vacuum Well Point Dewatering Technology to Deep Foundation Pits in Kunming

Vacuum well point technology is an advanced and reliable construction technology for dewatering. The "small hopper" and "vacuum water-stop curtain" formed in the soil layer can greatly lower the groundwater level, reduce the water/soil ratio in a deep foundation pit, improve the physical performance of the soil mass and increase the bearing capacity of the soil layer. Therefore this technology has the advantage in ensuring construction safety, shortening construction period and saving space and cost of a construction.