深圳某复杂环境基坑“部分逆作法”设计施工应用

Application of partial top-down construction of excavations under complex environment

摘要: “逆作法”作为基坑支护开挖的一种施工方法，一般存在基坑支护结构与基础、主体结构结合紧密，施工组织困难等问题，一般情况下很少采用，设计和施工经验不足。本文以深圳市福田区某一周边环境较复杂的基坑为例，介绍了“部分逆作法”的设计和施工方法，该基坑工程的安全施工，体现了该种施工方法，在设计指导施工、施工监测数据反馈设计、设计优化、简化施工等方面的相互结合，极大的发挥了设计、施工及监测相互协调优化的信息化施工的作用，可为今后类似工程的设计施工提供参考。

Abstract: The top-down construction as an effective method, is rarely used in deep excavation owing to its complexity. The partial top-down construction as an example is introduced. The successful application of this method needs to work together in the design, construction and monitoring. In a word, information alization construction is very important, and it can optimize the design and construction. This study may to provide important and valuable reference for the similar projects.