摘要
压力分散型锚杆利用全长无粘结钢绞线,将外荷载分散到锚杆中不同位置的承载体上,通过承载体挤压砂浆体实现荷载传递。对岩体进行加固时,这种新型的锚杆系统能克服传统锚杆的不足,取得更加良好的锚固效果。本文介绍了压力分散型锚杆的荷载传递机理,对比分析了压力型锚杆与拉力型锚杆的优缺点,总结了当前国内对这种锚杆的理论分析、试验研究和工程应用几个方面的进展。可供相关工程技术人员参考。
In pressure-dispersive anchor system, unbonded steel strand is used to disperse the external load to load-bearing bodies st different locations, and the load is transferred through the compressing action between the load-bearing bodies and mortar. When used in strengthening rock body, this new type of anchor system has better anchorage effect than traditional anchor. This article analyzed its load transfening mechanism, the advantages and disadvantages of pressure-type anchor and tensile-type anchor, then summarized the research progress of this type of anchor system in theoretical analysis experimental research and engineering application.
出处
《重庆建筑》
2009年第5期44-46,共3页
Chongqing Architecture
关键词
压力分散型锚杆
理论分析
试验研究
工程应用
pressure-dispersive anchor
, theoretical analysis
experimental research
engineering application
