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目前由于土地资源趋紧,高层建筑不断涌现,城市土地利用对提高容积率的需要以及建筑结构及功能上的要求,地下工程已由过去的一层发展到二层或三层,开挖深度也相应增加。目前在软土地区深基坑支护方法较多,但问题也不小。本文首先分析了软土地区深基坑施工特点,然后根据软土地区深基坑施工的挖土阶段、挡土阶段、围护阶段,重点分析了综合支护技术方法。
At present, due to the tightening of land resources, the continuous emergence of high-rise buildings, urban land use to improve the volume ratio needs and the structural requirements and functional requirements, underground engineering has been developed from the previous layer to two or three, the excavation depth A corresponding increase. At present, there are many ways of supporting deep foundation pit in soft soil area, but the problem is not small either. This paper first analyzes the construction characteristics of deep foundation pit in soft soil area, and then analyzes the comprehensive support technology methods according to excavation stage, retaining stage and enclosure stage of deep foundation pit construction in soft soil area.