城市用地逐渐减少,为满足人类需求、缓解空间压力,高层建筑迅速兴起,地下空间受到重视,相继被开发利用。深基坑施工作为高层建筑建设的一部分,起着承担上部结构荷载的基础性作用,因地下条件复杂,深基坑开挖有很大难度。支护是保证深基坑安全的必要措施,可避免边坡滑落,或出现沉降塌陷的情况。 In order to meet human needs and ease the space pressure, the rapid rise of high-rise buildings and the importance of underground space have been developed and utilized. As a part of high-rise building construction, deep foundation pit construction plays the basic role in bearing the load of superstructure. Because of the complex underground conditions, excavation of deep foundation pit is very difficult. Support is a necessary measure to ensure the safety of deep foundation pit, so as to avoid the situation of slope falling or settlement and collapse.