蒙陕地区多组煤层开采矿井巷道支护技术优化  

Optimization of Roadway Supporting Technology in Multiple Coal Seam Mining in Meng-Shan Mining Area

作　　者：马冰[1] MA Bing(Department of Mining and Design,Tiandi Science and Technology Company Limited,Beijing 100013,China)

机构地区：[1]天地科技股份有限公司开采设计事业部,北京100013

出　　处：《煤炭技术》2018年第10期109-111,共3页Coal Technology

摘　　要：针对纳林庙二号矿(以下简称纳二矿)4-1煤层巷道整体在未受采动影响下变形比较严重、局部巷道多次发生冒顶的特点,基于巷道岩石成分分析、巷道围岩强度和围岩结构测试、锚杆索可锚性测试,找出了影响纳二矿巷道不安全的因素,并且对巷道支护技术进行了优化。4-2煤层新掘巷道支护质量和效果检测表明,该优化设计有效地控制了新掘巷道的变形。For the characteristics of the roadway serious deformation not under the influence of mining,and the local roadway caving occurring many times of the Nalinmiao No.2 mine 4-1 seam roadway,identifies the impact of the mine roadway unsafe factors,and takes the optimization for them based on roof and floor rock composition analysis,roadway surrounding rock strength and structure of surrounding rock test and bolt（cable） anchor test.Through 4-2 seam new roadway supporting quality nursing and effect test,the optimization design made a effective control to new roadway deformation.

关 键 词：岩石成分 高预应力 支护效果监测 

分 类 号：TD353[矿业工程—矿井建设]