围岩大变形控制的让压锚杆支护研究进展
Research Progress of Yielding Bolt Support Applied in Surrouding Rock Large Deformation
唐民军 1王凤云1
作者信息
- 1. 安徽建筑大学智能地下探测安徽省重点实验室,合肥 230601;安徽建筑大学安徽省智能地下探测技术研究院,合肥 230601;安徽建筑大学土木工程学院,合肥 230601
- 折叠
摘要
让压锚杆支护是一种能有效控制围岩大变形的方法,允许受控的岩石变形,以降低围岩的压力,从而避免衬砌应力过大.对现阶段让压型锚杆支护研究进展进行了概括性的总结,研究成果展现了不同类型的让压锚杆,揭示了普通锚杆延伸率不足、承载性能较低的问题;阐明了让压锚杆的让压机理,体现了让压锚杆控制围岩大变形的优越性.
Abstract
The yieldable bolt support is a method that can effectively control large deformation of roadway surrouding rock,allowing controlled rock deformation to reduce the pressure of surrounding rock,so as to avoid excessive lining stress.The research progress yielding bolts has been summarized in the following aspects.The researches show that different type of yielding bolts.The problems of insufficient elongation and low bearing performance of ordinary bolt are revealed.They elucidate the yielding mechanism and demonstrate the superiority of controlling large deformation of surrounding rocks with yielding bolts.
关键词
让压锚杆/让压/锚杆类型/让压机理Key words
yielding bolt/yielding/bolt types/yielding mechanism引用本文复制引用
出版年
2025
NETL
NSTL
万方数据