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支护结构可分为挡土结构和支撑结构两类。基坑支护结构的作用是支挡土水压力与截水防渗,使基坑开挖和地下工程能给安全顺利施工。在施工期间,须保证基坑与围护结构的安全可靠,以免支护结构破坏、土体失稳或过大变形对基坑周边环境及地下结构施工造成严重的破坏后果。为此,现对建筑基坑钢板支护结构的施工进行简要的分析。
Support structure can be divided into two types of retaining structure and support structure. The function of foundation pit supporting structure is to support soil pressure and water cut-off and seepage prevention so that excavation and underground engineering of foundation pit can give safe and smooth construction. During the construction period, it is necessary to ensure the safety and reliability of the foundation pit and the retaining structure so as to avoid the damage of the supporting structure, the instability or excessive deformation of the soil, which will cause serious damage to the surrounding environment of the foundation pit and the construction of underground structures. For this reason, the construction of the steel plate supporting structure of foundation pit is analyzed briefly.