高压旋喷桩在基坑围护结构遇管线时的应用

以某城市地下人行通道基坑工程为实例,介绍了利用高压旋喷桩可以倾斜施工绕过障碍物的特点,对地下管线穿越基坑围护结构时进行加固的处理方法。实施结果表明:采用高压旋喷桩对基坑进行加固处理的方法可行、效果良好,避免了管线的迁移,降低了工程造价,取得了较好的经济和社会效益,为处于城市中心区、地下管线密布的基坑工程的设计、施工提供了很好的借鉴。

Application of High- Pressure Chemical Churning Pile in the Foundation Pit Run through by Underground Utility

According to the actual project of a underground passage,the reinforcement measure of the founda-tion pit run through by underground utility is proposed using the slanting construction feature of the high-pres-sure chemical churning pile.The practices prove that the reinforcement measure of the foundation pit using the high-pressure chemical churning pile is feasible and economical.The treatment measures can provide some references for the design and construction of the foundation pit in the Urban centers w...