In the paper, the technology of foundation Pit Support is explained and the application of SMW technology is analyzes, which are introduced to deal with soft soil first time in Tianjin.

• 本文比较系统的介绍了基坑支护技术方法，结合基坑支护技术实践，重点分析了新近引进的SMW工法基坑支护技术在天津地区软弱土层基坑支护工程中的应用。