马脊梁8216综放工作面停采优化设计研究  

Study on Optimization Design of Stoping Mining in Majiliang 8216 Fully Mechanized Caving Face Technology in Hard Roof

作　　者：高宇 张倩 GAO Yu;ZHANG Qian(Jinneng Holding Group Co.,Ltd.,Datong037000,China)

机构地区：[1]晋能控股集团有限公司,山西大同037000

出　　处：《煤矿现代化》2023年第6期13-16,共4页Coal Mine Modernization

摘　　要：为了实现综放工作面安全快速停采,通过采用推引锚固—内嵌锚托增效型不对称支护技术,增强了工作面停采支护的强度,避免了支护系统的失效,通过FLAC3D数值模拟软件1∶1模拟停采大断面空间支护体,确定了不对称支护的有效性,现场实施后,工作面减少了740根8 m锚索使用,停采时间减少了14 d,保证了综放工作面的安全高效停采。In order to achieve a safe and rapid stop of mining in a fully mechanized top coal caving face,the strength of the stop mining support in the face was enhanced by using the push anchor embedded anchor bracket efficiency enhancing asymmetric support technology,avoiding the failure of the support system.The effectiveness of asymmetric support was determined by 1:1 simulation of the stop mining large cross-section spatial support body using FLAC3D numerical simulation software.After on-site implementation,the use of 7408m anchor cables in the face was reduced,and the stop mining time was reduced by 14 days,The comprehensive economic benefits are obvious.

关 键 词：综放工作面 停采 推引锚固 内嵌锚托 不对称支护 

分 类 号：TD823[矿业工程—煤矿开采]