摘要
为确定深井高地应力节理化巷道围岩变形原因及其支护技术,通过地应力测试、围岩窥视、数值模拟的研究方法,对变形破碎回采巷道进行了研究,研究结果表明:巷道破碎的主要原因为最大主应力方向与巷道轴向垂直,巷道围岩为节理化破碎围岩;针对矿山巷道的地质条件,基于正交试验法确定了6种支护方案,并采用FLAC3D对支护方案进行了数值模拟,根据各方案塑性区的模拟结果,最终选择方案五作为破碎回采巷道的支护方案。
In order to determine the deformation reasons and the supporting technology of surrounding rock in deep joint-controlled roadway with high ground stress,the deformation and crushing mining roadway was researched through the study of geostress test,peering of surrounding rock and numerical simulation.The results showed that,the main reason of the broken roadway was that the direction of the maximum principal stress was perpendicular to the axial direction of the roadway,and the surrounding rock of the roadway was joint-controlled broken type.Aimed at the geological conditions of the mine roadways,6 supporting schemes were determined based on orthogonal test,and simulated by FLAC3D.According to the simulation results of the plastic zone for each scheme,the No.5 scheme was determined as the final supporting scheme of crushing mining roadway.
作者
金志远
徐佑林
邓川
许猛堂
JIN Zhiyuan;XU Youlin;DENG Chuan;XU Mengtang(Institute of Ming Engineering,Guizhou Institute of Technology,Guiyang,Guizhou 550003,China;Guizhou Anhe Mining Technology Engineering Co.,Ltd,Guiyang,Guizhou 550003,China)
出处
《矿业研究与开发》
CAS
北大核心
2018年第11期57-60,共4页
Mining Research and Development
基金
贵州省教育厅青年科技人才成长项目(黔教合KY字[2016]230)
国家安全生产监管总局重特大事故防治关键技术研究项目(guizhou-0003-2017AQ)
贵州理工学院高层次人才科研启动基金项目(2003001060)
关键词
深井
高地应力
节理化巷道
数值模拟
Deep mine
High ground stress
Joint-controlled roadway
Numerical simulation
