不同锚杆支护效果对煤巷围岩位移的对比分析  

Comparative Analysis of the Effect of Different Anchor Support on the Displacement of Coal Tunnel Surrounding Rock

作　　者：李百林 Li Bailin(Mine Construction Branch,Xishan Coal&Electric Construction Engineering Group Co.,Ltd.,Taiyuan Shanxi 030000)

机构地区：[1]西山煤电建筑工程集团有限公司矿建分公司,山西太原030000

出　　处：《机械管理开发》2022年第2期126-128,共3页Mechanical Management and Development

摘　　要：为提高煤巷围岩的稳定性和安全性,设计常规支护、帮部支护及强帮强角支护三种锚杆支护方案并,对比分析三种支护方案下煤巷围岩位移的变化情况。分析认为:加强帮部和角部锚杆支护,能够降低煤巷顶板的整体下沉量,以及降低帮部围岩的变形量;还能降低顶板岩层和两侧帮部的相对位移量,且相对位移量降低幅度明显大于位移量。In order to improve the stability and safety of coal tunnel surrounding rock, this paper compares and analyzes the changes of displacement of coal tunnel surrounding rock under three different anchor support schemes:conventional support, gang support and strong gang and strong corner support. The analysis concludes that strengthening the gang and corner anchor support can reduce the overall sinking of the coal tunnel roof and the deformation of the surrounding rock at the gang. In addition, it can also reduce the relative displacement of the roof rock and both sides of the gang, and the proportional magnitude of the reduction of the relative displacement is obviously larger than that of the reduction of the displacement.

关 键 词：常规支护 帮部支护 强帮强角支护 围岩位移 

分 类 号：TD322.4[矿业工程—矿井建设] TD353