煤炭科技2025，Vol.46Issue(6)：186-190,195,6.DOI:10.19896/j.cnki.mtkj.2025.06.033
厚煤层采动地压临巷断顶减压技术及应用
Technology and application of roof breaking decompression in adjacent roadway for mining-induced ground pressure in thick coal seam
摘要
Abstract
Aiming at the problem of serious roadway deformation caused by mining-induced ground pressure in thick coal seam mining,on the basis of combing the difficulties in the prevention and control of mining-induced ground pressure in thick coal seam,the theoretical a-nalysis,indoor test,numerical simulation and field measurement methods were comprehensively used to study the application effect of roof breaking decompression technology in adjacent roadway for mining-induced ground pressure in thick coal seam.The results show that the influence range of mining-induced ground pressure in thick coal seam is wide,the stress is complex,the ground pressure manifestation is strong,and the support design and management are difficult;by cutting off the connection between the roof of the goaf and the roof of the roadway,the roof breaking decompression technology in adjacent roadway can reduce the amount of borehole drilling and the damage of the surrounding rock,and has the technical advantages of low comprehensive cost and simple process;through numerical simulation and field experiments,the deformation of roadway under the condition of broken roof and unbroken roof is compared and studied.The technology of breaking decompression in adjacent roadway can effectively cut off the stress transfer of roof and reduce the deformation of roadway signifi-cantly.The research results can provide reference for the prevention and control of mining-induced ground pressure in thick coal seams.关键词
厚煤层/采动地压/临巷/断顶减压/预裂爆破Key words
thick coal seam/mining ground pressure/adjacent roadway/roof breaking decompression/presplitting blasting分类
矿业与冶金引用本文复制引用
孔皖军,赵均,周文勇,付宣斌,宋昌龙..厚煤层采动地压临巷断顶减压技术及应用[J].煤炭科技,2025,46(6):186-190,195,6.基金项目
国家自然科学基金项目(52074300) （52074300）
