深基坑预应力锚杆土钉墙支护的险情原因及抢险措施  

ANALYSIS AND RESCUE MEASURES AGAINST ACCIDENT OF PRESTRESSED ANCHOR ROD AND SOIL NAIL WALL SUPPORT IN DEEP FOUNDATION PIT

作　　者：吕彭源 徐广 叶林 张保强 

机构地区：[1]中交地产有限公司,北京100036

出　　处：《建筑技术》2013年第6期517-521,共5页Architecture Technology

摘　　要：深圳嘉麟豪庭等三项工程,基坑均采用预应力锚杆和土钉墙支护,在基础地下室施工期间发生边坡坍塌险情,经采取抢险措施,保证了基坑安全。分析三起险情,均由排水或防雨措施不当引起,因此土钉墙护坡应视具体情况谨慎使用。The foundation pits of Shenzhen Jialinhaoting project and other two projects are supported by prestressed anchor and soil nail wall. Slope collapse occurred during construction of foundation basement, and rescue measures were adopted to successfully ensure the foundation safety. After analysis on these three accidents, it is found that they are caused by inappropriate drainage or rainproof measures. Therefore, soil nail wall should be cautiously used for slope protection according to practical conditions.

关 键 词：深基坑工程 预应力锚杆 土钉墙 基坑抢险 

分 类 号：TU753.62[建筑科学—建筑技术科学]