单排前撑式注浆钢管+SMW工法基坑支护技术在软土地质中的应用

Application of Foundation Pit Support Technology of Single Row Front SupportGrouting Steel Pipe + SMW in Soft Soil Geology

以上海某小区地下一层车库基坑施工为例,介绍单排前撑式注浆钢管+SMW工法基坑支护技术的施工工艺流程及控制要点,总结其优势与不足。与常规水平内支撑相比,该工艺可降低基坑施工难度、提高工效、缩短工期、节约成本,可为类似支护技术的应用提供借鉴。

Through the construction of a large underground garage to achieve the flow of people and vehicles has become the mainstream of residential district planning. In this paper, a residential area in Shanghai is taken as an example, During the construction of the foundation pit of the underground one-storey garage, the single-row front-supporting grouting steel pipe support technology is adopted, Compared with conventional horizontal in-brace, It can reduce the dif ficulty of foundation pit construction, improve work ef ficiency, shorten construction period and save cost. This paper introduces the General Situation of this technology, summarizes its advantages and disadvantages, and provides a reference for the application of similar supporting technology.