With the rapid development of our society in recent years, the supply of urban land has become increasingly insufficient. In order to ensure the supply of urban land, the stability requirements for foundation pit retaining and protecting projects have also been increasing. At present, retaining and protecting for foundation pit has been widely used as a relatively new type of support. However, the research in this area is relatively few and theoretically insufficient, and there is a lack of relevant research on the design and construction of retaining and protecting for foundation pit schemes. Therefore, based on the research object of foundation pit engineering in City A, this paper conducted a comprehensive and in-depth study on the scheme design and maintenance of foundation pit engineering by introducing the method of finite element strength reduction to fully understand the current deep foundation pit engineering retaining and protecting in City A support system, and specify the general situation and development loopholes of the current supporting system. On this basis, the rationalization framework and safety consideration scheme are proposed for the deep foundation pit supporting scheme design, and the support design calculation of the deep foundation pit supporting structure is carried out by using Midas structural analysis technical design software, which is compared with the actual detection data to further verify the feasibility of the scheme.

Guanting She, Yingrun Chen, Shijian Xu, Tao Zhang, Yuyang Liang. Simulation Research of Foundation Excavation Retaining and Protecting Optimization Based on Midas Structural Analysis Technology. Academic Journal of Engineering and Technology Science (2022) Vol. 5, Issue 2: 13-23. https://doi.org/10.25236/AJETS.2022.050204.

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