摘要
针对沿空巷道受多次采动叠加影响极易发生变形失稳破坏的难题,以某矿1505W工作面厚煤层综放开采工作面为研究背景,综合采用理论分析、现场实测、数值模拟等多种研究方法探讨分析了沿空巷道围岩失稳破坏机制,并提出了围岩“浅部、深部、表层”控制方案。现场试验结果表明,提出的控制方案能够使巷道浅、深部围岩形成统一的整体,有效抑制了沿空巷道围岩变形,提高了巷道的稳定性。
The roadway along the goaf is highly susceptible to deformation,instabilty,and damage due to multiple mining operations.Taking the 1505W of a coal mine thick coal seam fully mechanized top coal caving mining face as the research background,numerical simulation method was used to explore and analyze the instability and failure mechanism of the surrounding rock of the goaf roadway,and a control plan of“shallow,deep,and surface”of the surrounding rock was proposed.The on-site test results indicate that the proposed control scheme can form a unified whole for the shallow and deep surrounding rocks of the roadway,which can effectively suppress the deformation of the surrounding rocks along the goaf,and improve the stability of the roadway.
作者
王海亮
任冬冬
韩卫栋
黄小虎
马腾
WANG Hailiang;REN Dongdong;HAN Weidong;HUANG Xiaohu;MA Teng(Xinwen Mining Group(YiLi)Energy Development Company Limited No.1 Mine,Yining 835000,China;School of Energy and Mining Engineering,Shandong University of Science and Technology,Qingdao 266590,China)
出处
《建井技术》
2024年第2期78-83,94,共7页
Mine Construction Technology
关键词
厚煤层
大断面
沿空巷道
围岩变形
支护优化
thick coal seam
large cross-section
goaf roadway
deformation of surrounding rock
optimize support
