深基坑采用组合钢内支撑控制微变形技术与应用

The Technology and Application of the Composite Steel Internal Support Control Micro-Deformation used in Deep Foundation Pit

介绍了在深基坑中采用一种两边都能连锁形成连续凹凸互锁钢板桩以及可拼接组装的钢管组成的组合钢内支撑系统来控制深基坑的微变形技术,并对基坑及环境监测的影响进行分析,通过现场施工验证,取得了良好的应用效果。

This paper introduces the micro-deformation control technology of deep foundation pit by using a composite steel internal support system composed of continuous concave-convex interlocking steel plate piles and assembled steel tubes,which can be linked on both sides in deep foundation pit.The influence on foundation pit and environmental monitoring is analyzed,and good application results are obtained through field construction verification.