预应力锚杆复合土钉基坑支护监测分析

Analysis on monitoring of prestressed anchor composite soil nailing wall

结合北京某研发楼工程,介绍了预应力锚杆复合土钉基坑支护结构的方案设计及施工方法,通过基坑支护监测,分析了基坑坑壁水平位移和锚杆拉力的分布情况,指出采用土钉墙和预应力锚杆复合土钉支护可提高基坑的安全性。

Combining with some research and development projects in Beijing, the paper introduces the scheme design and construction methods for the prestressed anchor nailing foundation pit support structures, analyzes the horizontal displacement of the foundation pit walls and distribu- tion of the anchor stress by the supervision of the foundation pit support, and points out the nailing walls and prestressed anchor composite nailing support can improve the safety of the foundation pits.