某复合地基工程案例的经验教训

Lessons from the Case of a Composite Foundation Engineering

某工程位于地质情况较为复杂的岩溶场地。根据实际地质情况,对局部工程部位采用素混凝土刚性桩复合地基加筏板基础形式和振动沉管灌注桩施工工艺。由于对振动沉管灌注桩工艺的特点认识不足,再加上施工过程中对一些工序质量控制不到位,造成最终桩基质量未能达到要求,只好改用其他桩基形式。本案例所提供的经验教训值得借鉴。

A project is on complex karst area. According to the actual geological conditions, we adopted concrete rigid pile composite foundation and raft foundation and technique of vibration pipe sinking cast-in-place pile for local part of the building. Because of lacking understanding for the technology, and not controlling the quality strictly in construction process, the quality of the pile foundation failed to meet the required standards. Finally we had to use other forms of pile foundation. This case offered lessons for future reference.