摘要
通过一个北京深基坑工程实例,介绍了土钉、预应力锚杆、微型钢管桩联合使用,形成微型钢管桩垂直复合土钉墙这种支护形式。微型钢管桩作为超前支护,能够提高土层的自立稳定性,预应力锚杆能有效控制坡面的位移,既保证了基坑与周边环境的安全,又节省了工程造价。同时分析了该技术在设计、应用中需要注意的问题,可供今后类似工程借鉴。
Based on a Beijing deep foundation pit example,this paper introduces the combined use of soil nailing,prestressed anchor and miniature steel pipe piles to form miniature steel pipe pile vertical composite soil nailing wall.Miniature steel pipe piles,as advanced support,can improve soil self-reliance stability,and prestressed anchor can effectively control slope surface displacement.The safety of foundation pit and the periphery environment are guaranteed.It also analyzes the technology tips in design and application,which can provide a reference for the similar projects in the future.
出处
《建筑科学》
北大核心
2011年第7期99-101,31,共4页
Building Science
关键词
微型钢管桩
复合土钉墙
深基坑
miniature steel pipe pile
composite soil nailing wall
deep foundation pit
