摘要
为了解决大断面空间近距交叉巷道的支护难题,采用FLAC3D数值模拟软件分析空间交叉巷道的应力分布特点以及沿下方巷道轴向方向形成的应力增高和降低区。比较不同方案在应力增高区内的支护效果,确定最终空间交叉巷道支护方案。结合新三矿现场条件设计具体的加固补强的支护参数,并在实践中取得较好效果。
In order to solve the support problems of the mine large cross section space crossing roadways with a closed distance,the FLAC3D numerical simulation software was applied to analyze the stress distribution features of the mine space crossing roadways and the stress increased and decreased zones formed along the axial direction of the below roadway.In comparison with the support effects of the different support plans in the stress increased zone,the support plan of the mine final space crossing roadways was determined.In combination with the site conditions of Xinsan Mine,the support parameters of the certain reinforcement were designed and good results were obtained from the practices.
出处
《煤炭工程》
北大核心
2011年第3期60-62,共3页
Coal Engineering
基金
煤炭资源与安全开采国家重点实验室自主研究课题资助(SKLCRSM10B08)
国家重点基础研究发展计划资助(010CB226802)
教育部留学回国人员科研启动基金资助项目(2007-1108)
关键词
空间交叉巷道
锚索桁架
数值模拟
应力分布
支护
mine space crossing roadways
anchor truss
numerical simulation
stress distribution
support
