超预应力锚杆支护实验研究  

Experimental Research on Super-Prestressed Anchor Rod Support

作　　者：张晓伟 Zhang Xiaowei(Shanxi Ningwu Dayun Huasheng Laoyaogou Coal Industry Co.,Ltd.,Ningwu Shanxi 036700)

机构地区：[1]山西宁武大运华盛老窑沟煤业有限公司,山西宁武036700

出　　处：《机械管理开发》2021年第9期101-103,共3页Mechanical Management and Development

摘　　要：为研究超预应力锚杆的极限支护效果,在现有采矿工程高预应力支护技术的基础上,提出并研究了一种超级锚杆支护方案。通过物理模型试验,对超级锚杆支护方案与其他两种方案进行了比较分析。结果表明,超级锚杆支护方案可以改善围岩应力分布。该方法有助于支护参数的优化,提高屋面承载能力,因此采用超预应力锚杆是解决极难深部巷道支护问题的有效途径。The ultimate support effect of the ultra-prestressed anchor rod is studied.Based on the existing high prestress support technology of mining engineering,a super anchor rod support scheme is proposed and studied.Through the physical model test,the super anchor rod support scheme is compared with the other two schemes.The results show that the super anchor support scheme can improve the stress distribution of surrounding rock and improve the roof bearing capacity.The super prestressed anchor is an effective way to solve the deep tunnel support.

关 键 词：超预应力 超级锚杆支护 物理建模 

分 类 号：TD353.6[矿业工程—矿井建设]