摘要
针对某矿1215工作面运料车场巷道围岩在原支护系统下损坏严重的情况,分析了其变形破坏的形态和诱因,阐述了锚网喷、锚索联合支护作用机理,提出了"长锚杆(索)+强金属网+二次喷浆"的联合支护方式,并应用于1215工作面运料车场巷道的扩刷工程中。经实践检验,支护效果显著,具有良好的推广应用价值。
Aiming at the serious damage of the surrounding rock of the roadway in 1215 working face in a coal mine,the form and cause of the deformation and failure are analyzed. The mechanism of the combined support is introduced. The Long anchor（ cable） ＋ strong metal net ＋ guniting joint support mode are applied to the roadway section-expansion engineering in the working face for material transportation. The practice shows remarkable effect in support with good value to promote in similar cases.
出处
《山西焦煤科技》
2017年第5期39-42,46,共5页
Shanxi Coking Coal Science & Technology
关键词
深部岩巷
变形破坏
联合支护
巷道扩刷
Deep rock roadway
Deformation and failure
Combined support
Roadway expansion
