软土深基坑支护的选择与应用

The comparative analysis of soft deep soil foundation pit

支护结构的选择重点考虑技术和经济等多方面因素,本文通过泉州软土地区某基坑工程3种设计方案的对比分析,阐述了软土基坑支护挡土和支撑构件选择、支撑设置、土压力、造价等几方面问题,选中的设计方案在实际工程的应用中取得成功,说明软土基坑支护应重视当地经验教训,正确认识土压力的变化规律与取值,确保施工质量,并进行开挖施工监测,才能既确保基坑工程安全又节省投资、节省工期。

：The choice of supporting structure focuses on technical and economic and other factors, on the comparative analysis of three kinds of design proposals of some foundation ditch in Quanzhou soft soil district, it is expounded some questions of foundation pit supporting, supporting component selection, support setting , earth pressure, construction cost, the selected design proposal get success in the practical application, it shows that it should attach importance to local experiences and lessons in soft soil foun- dation pit supporting, know the law of the changes of earth pressure and the values correctly, ensure the construction quality, and monitor the excavation works to ensure the foundation＇s safety and also save the project investments and shorten period.