复合土钉墙在软土深基坑中的应用分析

APPLICATION AND ANALYSIS OF COMPOSITE SOIL-NAILING WALL IN SOFT SOIL FOUNDATION

常规土钉墙在杂填土及没有自稳能力的淤泥和淤泥质土中不能单独应用,故采用常规土钉墙+深搅桩+预应力锚杆结合使用的"复合式土钉墙"解决以上问题。在武汉市某住宅小区基坑支护工程中,采用了复合土钉墙技术,取得了良好的效果,结合"复合式土钉墙"在基坑工程中成功应用的实例介绍其施工工艺和机理。为软土基坑支护摸索出一条崭新的道路。

The general soil nailing support is not suited to the miscellaneous fill, unstable silt and mucky soils. Therefore, composite soil-nailing wall is proposed to solve the problem in the area. Composite soil-nailing wall was applied on the pit supporting of the construction, which gained excellent achievements. This article introduces the craft and mechanism of composite soil-nailing wall according to the engineering practice. And though the data got from the engineering practice, we can get the conclusion that the composite soil-nailing wall is an effective support method.