超深基坑地下连续墙全逆作法施工与内力一体化分析

Integration Analysis of Construction and Internal Force of Diaphragm Walls and All Topdown Construction Method in Deep Foundation Pit

结合水文地质、工程地质条件与周围建筑物对拟建工程的深基坑支护方案进行分析,明确了采用"两墙合一"地下连续墙和全逆作法施工的特点和复杂性。强调全逆作法施工阶段地下连续墙的内力与地下连续墙及上部结构施工程序有紧密关系。针对深基坑各侧地下连续墙的具体情况,考虑附加房屋荷载、地面堆载、路面车辆荷载单独或者组合作用下的内力分析,对超深基坑地下连续墙全逆作法设计与施工一体化进行了有益的研究。

Deep foundation pit bracing scheme is analyzed when hydrogeological and engineering geological conditions and the surrounding buildings are taken into consideration.＂Two wall unity＂ diaphragm wall and all topdown construction method are adopted.Close relationship is between the internal force of diaphragm wall and the construction procedure of diaphragm wall and superstructure.According to the specific circumstances of diaphragm wall in each side,internal force is analyzed with houses load,ground stack and road vehicle load.Integration analysis of all topdown construction method design and construction is beneficially researched.