Abstract:
An engineering example of a deep foundation pit, which average depth is 16.0m, is introduced in this paper. Based on the analysis of the surroundings around foundation pit and the engineering geological conditions, three optional methods to retain and protect the foundation pit were compared, finally the soldier piles system with a single row of anchor was chosed as the supporting system for the pit. Monitoring result shows that foundation deformations meet all the requirements. The chosen method can not only ensure the safety of the foundation pit, but also cut the cost and shorten the project duration, it can provide reference for similar projects.