摘要
为解决东西回风大巷在原有支护方案下围岩变形量大的问题,通过理论分析围岩变形机理及内外耦合支护技术原理,确定巷道优化后的支护方案为锚网索+注浆加固,并对各项支护参数进行具体设计。通过支护方案优化前后围岩变形量对比分析,验证支护优化效果。结果表明:支护方案优化后,有效解决了围岩变形量大的问题。
In order to solve the problem of large deformation of surrounding rock under the original support scheme of east-west return air roadway,through theoretical analysis of surrounding rock deformation mechanism and internal and external coupling support technology principle,the optimized support scheme of roadway is determined as bolt mesh cable+grouting reinforcement,and the specific design of various support parameters is carried out.Through the comparative analysis of surrounding rock deformation before and after the support scheme optimization,the support optimization effect is verified.The results show that after the optimization of support scheme,the problem of large deformation of surrounding rock is effectively solved.
作者
史海涛
Shi Haitao(Shanxi Fenxi Zhengbang Coal Industry Co.,Ltd.,Shanxi Xiaoyi 032300)
出处
《山东煤炭科技》
2021年第8期52-54,58,61,共5页
Shandong Coal Science and Technology
关键词
煤巷
耦合
支护
coal roadway
coupling
support
