松软厚煤层留顶煤动压巷道支护技术研究  

Research on support technology of the left top coal dynamic pressure roadway in soft and thick coal seam

作　　者：崔千里 于水[3] 王学强 孙周月 陈朝 Cui Qianli;Yu Shui;Wang Xueqiang;Sun Zhouyue;Chen Zhao(CCTEG Coal Mining Research Institute,Beijing 100013,China;Mining Research Branch of Coal Science Research Institute,Beijing 100013,China;Shaanxi Coal and Chemical Industry Group Co.,Ltd.,Xi'an 710000,China)

机构地区：[1]中煤科工开采研究院有限公司,北京100013 [2]煤炭科学研究总院开采研究分院,北京100013 [3]陕西煤业化工集团有限责任公司,陕西西安710000

出　　处：《能源与环保》2023年第12期56-61,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家自然科学基金项目(51804159);天地科技股份有限公司科技创新创业专项项目(2021-TD-MS011-01)。

摘　　要：针对松软厚煤层留顶煤动压巷道,在前期巷道地质力学参数测试基础上,分析巷道变形破坏的影响因素,通过围岩应力数值模拟分析,提出了针对性的松软厚煤层留顶煤巷道的高预应力注浆锚杆锚索支护方案。井下实践表明,采用高强度、高刚度、低密度的注浆锚杆锚索组合支护技术,可有效地控制巷道围岩变形,实现工作面安全回采。Based on the geological and mechanical parameter testing in the early stage,the influencing factors of roadway deformation and failure were analyzed for the dynamic pressure roadway with the left top coal in soft and thick coal seams.Through numerical simulation analysis of surrounding rock stress,a targeted high prestressed grouting anchor rod cable support scheme for the left top coal roadway in soft and thick coal seams was proposed.Underground test show that the grouting anchor rod and anchor cable combination support technology with high pretension,high strength and low density could controlled surrounding rock deformation,and make sure the safety of coal mining.

关 键 词：松软厚煤层 留顶煤 动压巷道 高刚度高强度 注浆锚杆 组合支护技术 

分 类 号：TD353[矿业工程—矿井建设]