深部大倾角窄煤柱沿空掘巷围岩控制技术研究  

Research on Surrounding Rock Control Technology for Deep Inclined Narrow Pillar Roadway Driving along Gob

作　　者：李秀山 王振伟 

机构地区：[1]山东能源淄矿集团公司岱庄煤矿,山东济宁272175 [2]山东省充填开采工程技术研究中心,山东淄博255000 [3]山东东山古城煤矿有限公司,山东兖州272100

出　　处：《矿业安全与环保》2015年第2期35-38,共4页Mining Safety & Environmental Protection

基　　金：泰山学者建设工程专项经费资助项目(201309)

摘　　要：针对某矿7121大倾角综采工作面进风巷埋深大、支护困难等问题,运用FLAC3D数值模拟软件分析了掘巷后围岩的应力分布规律和变形特征,基于沿空掘巷大、小结构的稳定性原理,提出巷道围岩整体性控制措施及高强耦合体系的联合支护方式,并在7121工作面进风巷现场应用。结果表明:巷道掘进和回采阶段围岩变形量在可控范围,达到了围岩控制目的,保证了矿井安全高效生产。Aiming at the problems of deep location and difficult support of the air intake roadway in 7121 deep-inclined fully-mechanized working face, analysis was made on the stress distribution and deformation characteristics of the roadway surrounding rock after the roadway driving along the gob by using FLAC3D numerical simulation software, and based on the principle of the large and small structural stability of the roadway driving along the gob, the integrate control measures for the surrounding rock and the combined support mode of high-strength cable and mesh coupled system were proposed, which was applied in the air intake roadway in 7121 fully-mechanized working face. The results showed that the deformation of the surrounding rock can be effectively controlled during the roadway driving and coal winning, this thus ensured the safe and high-efficient production of the mine.

关 键 词：深部大倾角煤层 窄煤柱 沿空掘巷 围岩控制 

分 类 号：TD353[矿业工程—矿井建设]