大倾角破碎特厚煤层综放面回采巷道支护技术实践  

Support Technology Practice for Mining Roadway of Fully Mechanized Top Coal Caving Face in Broken Ultra-Thick Coal Seam with Large Dip Angle

作　　者：文建东 古亚丹 白俊杰 杜计平[2] 

机构地区：[1]甘肃靖远煤电公司王家山煤矿,甘肃白银730917 [2]中国矿业大学矿业工程学院,江苏徐州221116

出　　处：《煤炭工程》2015年第7期46-49,共4页Coal Engineering

摘　　要：针对大倾角破碎特厚煤层综放工作面回采巷道支护失效的问题,深入分析了锚网索喷支护失效的原因,在对锚杆、锚索安装配套材料的规格及强度和锚索涨紧强度、锚杆预紧扭矩、托锚力等相关技术参数进行现场测试的基础上,形成并成功地实施了适合大倾角破碎特厚煤层综放工作面回采巷道围岩控制的"三高、三小、三及时、两协调、一让压"、薄弱部位补强、较大托盘护表的锚网索喷支护关键技术,使深部回采巷道围岩得到有效控制。Aiming at support failure in mining roadway of fully mechanized top coal caving face in broken ultra - thick coal seam with large dip angle, the reason was analyzed for failure of bolt - mesh - cable - shotcreting support, based on tests on the specifications and strength of matching material for installation of bolt and cable, tensioning strength of cable, bolt pre -tightening torque, supporting force and other related technical parameters in coal mine underground field, the key bolt - mesh - cable - shotereting support technology was developed and practiced in mining roadway of fully mechanized top coal caving face in broken ultra - thick coal seam with large dip angle, including ＂Three high, Three small, Three timely, Two Coordinated, One strength yielding＂, weak parts strengthening and table supporting with large tray, surrounding rock of thedeep mining roadway was effectively controlled.

关 键 词：大倾角 特厚煤层 回采巷道 锚网索喷支护 

分 类 号：TD823.254[矿业工程—煤矿开采]