摘要
为解决泊江海子煤矿首采面运输顺槽支护时弱粘结遇水软化顶板变形严重的问题,通过改变围岩的材料、强度等参数来模拟围岩遇水软化的条件,应用FLAC3D数值模拟软件对比分析了锚索长度、锚索布置方式对巷道围岩稳定性的影响,并提出了优化支护方案。工程实践表明:运输顺槽优化后支护效果优于原支护,为相似的巷道支护提供了经验。
To solve Bo Jiang Haizi initial mining of coal mine when surface transport gateway support weak bond in water softening roof deformation serious problem,through the change of the material, the strength of surrounding rock parameters to simulate the surrounding rock in the condition of water softening. Software FLAC^3D numerical simulation analysis of the impact on the stability of surrounding rock of roadway anchor length,anchor cable arrangement, and put forward the optimization of supporting scheme. Engineering practice shows that the transport gateway optimized supporting effect is better than the original support, and provides experience for the similar roadway support.
作者
李守好
陈苗虎
付宝杰
Li Shou-hao Chen Miao-hu Fu Bao-jie(Huai Mine West Mine Investment Management Co,Ltd,Eerduosi 017000 Shool of Energy and Security, The MOE Key Laboratory of Coalmine Safety and High Efficiency Mining, Anhui University of Science and Technology, Anhui Huainan 232001)
出处
《山东煤炭科技》
2017年第9期74-76,79,共4页
Shandong Coal Science and Technology
关键词
弱粘结
遇水软化
锚索支护
数值模拟
weakly caking water-expanding cable bolting numerical simulation
