厚煤层联合开采下部采面巷道围岩变形诱因研究  

Causes of Deformation of Surrounding Rock in Lower Mining Face Roadway of Thick Coal Seam Joint Mining

作　　者：张虎 ZHANG Hu(Shanxi Youyu Dongwabei Coal Industry Co.,Ltd.,Shuozhou 037200,Shanxi,China)

机构地区：[1]山西右玉东洼北煤业有限公司,山西朔州037200

出　　处：《能源与节能》2025年第4期207-209,共3页Energy and Energy Conservation

摘　　要：对东洼北煤业厚煤层联合开采下部9^(#)煤层各采面巷道围岩变形诱因进行研究。通过现场调研、理论分析及数值模拟,分析了上覆煤柱集中载荷、相邻工作面采掘扰动、围岩性质及地质构造等因素对巷道围岩变形的影响。结果表明,上覆煤柱应力集中、采掘扰动应力叠加、围岩力学性能差及现有支护技术不足是主要影响因素。该研究为9^(#)煤层各采面巷道围岩控制需要采取的水力切顶、钻孔泄压、小煤柱护巷、支护设计优化等综合性技术措施的制定提供了理论依据。The causes of deformation in the surrounding rock of each roadway of the lower 9^(#)coal seam in the joint mining of thick coal seams in Dongwabei Coal Industry Co.,Ltd.were studied.Through on-site research,theoretical analysis,and numerical simulation,the influence of factors such as concentrated load on overlying coal pillars,mining disturbance on adjacent working faces,surrounding rock properties,and geological structures on the deformation of roadway surrounding rock was analyzed.This study provided a theoretical basis for comprehensive technical measures such as hydraulic roof cutting,drilling pressure relief,small coal pillar roadway protection,and support design optimization to be adopted for the control of surrounding rock in each mining face of 9^(#)coal seam.

关 键 词：巷道围岩变形 煤柱应力集中 采掘扰动 支护技术 

分 类 号：TD353[矿业工程—矿井建设]