摘要
利用锚杆完成特厚煤层回采巷道的安全支护,需要确定最佳支护相关参数,以此模拟所得参数布局详细的支护方式,验证手段为分析围岩相似不同支护方式下的下沉量。在锚杆支护方式中,影响支护效果的主要有顶角锚杆的安设角、顶帮锚杆长度以及帮角锚杆的安设角,利用FLAC3D软件进行仿真计算得出最佳参数,完成方案设计,实际验证表明达到安全支护巷道的性能要求。
To complete the safe support of the back mining tunnel in extra thick coal seam with anchor rods,it is necessary to determine the best support parameters and use the parameters obtained from the simulation to layout the detailed support method,the verification means is to analyze the sinking amount of the surrounding rock under the similar different support methods.The optimum parameters were calculated by simulation using FLAC3D software,and the scheme was designed and verified to meet the performance requirements for safe support of the roadway.
作者
李源
Li Yuan(Gucheng Coal Mine,Lu'an Chemical Group,Changzhi Shanxi 046100)
出处
《机械管理开发》
2023年第4期44-46,共3页
Mechanical Management and Development
关键词
锚杆支护
围岩稳定
特厚煤层
anchor support
rock stability
extra thick coal seam
