This paper mainly starts with the supporting technology of deep foundation pit, and puts forward the existing problems and optimization schemes accordingly. As far as the supporting technology of deep foundation pit is concerned worldwide, the supporting technology has basically reached a very high level, but the problems reflected in it are obvious. How to use the supporting technology of deep foundation pit scientifically and effectively to ensure the quality and construction safety of the supporting engineering of foundation pit has always been the content of exploration.Based on the premise of safety and reliability, economy and rationality, construction convenience and guarantee time limit, this paper analyses the optimization method of deep foundation pit support structure design.%主要从深基坑支护的技术入手,相应的提出目前存在的问题和优化方案.就世界范围内的深基坑支护技术来看,支护技术基本到达了很高的水准,但其中反映出的问题也是显而易见的,如何科学有效的利用深基坑支护技术来保证基坑支护工程的质量和施工安全一直是探索的内容.在基于安全可靠、经济合理、施工便利和保证工期的前提下对深基坑支护结构设计的优化方法进行分析.
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