摘要
对斜沟煤矿18209大断面掘进巷道开展地质力学测试,并分析了地应力分布规律。应用新型支护材料,并通过新旧支护方案的对比,得出新型支护方案解决了锚杆、锚索各构件合理配套问题,从而为斜沟煤矿掘进巷道提供科学合理的支护方案,显著提高了巷道围岩支护强度,减少了掘进时期及后期维护材料消耗,对斜沟煤矿节支降耗具有重要意义。
Geological mechanics tests are carried out on No. 18209 roadway with large-section in Xie Gou ditch coal mine,and the law of geostress distribution is analyzed. The new support scheme is used to solve the problem during supporting,by comparison the traditional scheme of which the bolts and cables are usually hard to be perfectly matched,provides a scientific and reasonable support scheme for the roadway excavation in the coal mine. The application improves the support strength of roadway surrounding rock,and reduces the material consumption and maintenance cost,which is of great significance for the production.
出处
《山西焦煤科技》
2017年第2期11-14,18,共5页
Shanxi Coking Coal Science & Technology
关键词
大断面巷道
可调心拱形托片
调心球垫
减震垫片
支护强度
节支降耗
Large cross section roadway
Adjustable arch supporting pieces
Ball shaped gasket
Shock absorber
Support strength
Save on expense and energy
