土钉墙在大型地下车库基坑支护中的应用

Application of Soil Nail Wall on Retaining for an Underground Parking Lot Excavation

该工程为南京市区平均开挖深度5.2 m的地下车库基坑支护工程,其中东侧段地势较高,开挖深度达7.2 m,距离坡顶4 m处即为3幢6层的住宅楼,基坑侧壁土层分布以粉质粘土为主,文章介绍了土钉墙支护技术在该基坑中的应用,并对基坑监测数据进行了分析。

The pit of underground parking lot in Nanjing was excavated to a depth of around 5.2 meter , and the pit excavation on the east side is as deep as 7.2 meter since field topographic elevation. Furthermore, the distance between three buildings and the pit is only 4 meter or so. Here the soil nail wall technology is introduced in this project and then discussion of design, computation as well as monitoring is presented in this paper.