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由于主体结构日渐趋向高层化,与之相适应的基坑工程随之向大深度、大跨度和大面积方向发展,无疑将会对深基坑边坡支护工程的施工安全带来较大的难度。深基坑工程施工周期相对较长,从土方开挖到正负零以下的所有分部分项隐蔽工程施工和验收,通常需经历数月,在此期间,降雨、基坑周边堆土堆料、施工机械振动等不利因素侵扰,影响基坑边坡稳定。所以必将对基坑设计与施工提出更高要求。
As the structure of the main body gradually becomes higher and higher, the corresponding foundation pit engineering will follow the direction of great depth, large span and large area, which will undoubtedly bring greater safety to the construction safety of deep foundation pit slope support engineering Difficulty. Deep foundation pit construction period is relatively long, from earth excavation to less than plus or minus all of the sub-sub-item concealed construction and acceptance, usually take several months, during this period, rainfall, pits surrounding the pit, Construction machinery vibration and other adverse factors intrusion, affecting the stability of foundation pit slope. So it is bound to put forward higher requirements for the design and construction of foundation pit.