山东煤炭科技2024，Vol.42Issue(5)：58-62,5.DOI:10.3969/j.issn.1005-2801.2024.05.012
深部大断面巷道变形破坏特征及控制技术研究
Research on Deformation and Failure Characteristics and Control Technology of Deep Large Cross Section Roadway
刘庭 1支帅1
作者信息
- 1. 兖矿能源集团股份有限公司济宁二号煤矿,山东 济宁 272100
- 折叠
摘要
Abstract
In order to solve the problem of significant deformation and difficult control of surrounding rock in deep large cross section roadways,taking the 43under06 auxiliary connecting roadway in Jining No.2 Coal Mine as the engineering background,the range of loose circle in the roadway surrounding rock is measured by drilling and peeping method.According to this,the deformation and failure characteristics and reasons of the roadway surrounding rock are analyzed,and an optimized support scheme is proposed.The feasibility of the optimized support scheme is verified through numerical simulation.The on-site industrial test results show that using the optimized support scheme,the maximum deformation amount of the roof,floor,and two sides of the roadway are 82 mm and 49 mm,respectively,and the layer separation amount of the roof and floor is 15.2 mm and 7.3 mm,respectively,both of which are smaller than the allowable deformation amount of the roadway.The surrounding rock control effect is good.关键词
大断面/巷道/支护Key words
large cross section/roadway/support分类
矿业与冶金引用本文复制引用
刘庭,支帅..深部大断面巷道变形破坏特征及控制技术研究[J].山东煤炭科技,2024,42(5):58-62,5.
