双液帷幕注浆在流砂层中的应用

Application of double liquid drapery grouting technology in strong quicksand stratum

采用双液帷幕注浆可解决在渗透系数大、承压水头高的地层中进行基坑施工所面临开挖困难的问题。对不同地层进行双液帷幕浆均能取得增加强度、明显减小渗透系数的工程效果。文章结合工程实例论述了帷幕注浆的设计要点、施工工艺及其止水效果。

Adopting the construction technology of double liquid drapery grouting can settle the problem of difficult digging in the construction of foundation pit in the stratum of big filter coefficient and high pressing hydraulic head. Implementing double liquid drapery grouting on different stratums can gain the engineering effects of advancing intensity and minishing filter coefficient obviously. Combined with engineering example, this article discussed the design points, construction technology and its stagnant water effect of drapery grouting.