深基坑支护虽然是临时性工程，但其施工质量对在建工程质量、基坑周围既有建筑物及地下管线安全有重要意义。本文从支护设计、力学参数选取、基坑开挖、边坡坍塌及施工技术管理等方面分析基坑支护存在的问题，并给出解决措施。

Although the deep foundation pit support engineering is a temporary project, its construction quality is of great significance to the quality of the construction in progress and the safety of the existing buildings and underground pipelines around the foundation pit. In this paper, the problems of foundation pit support are analyzed from the aspects of support design, mechanical parameters selection, excavation, slope collapse and construction technology management, and the solutions are given.

TU753