| 邻近既有采空区新建工作巷道稳定性分析 |
| |
| 引用本文： | 邱发亮.邻近既有采空区新建工作巷道稳定性分析[J].企业技术开发,2010,29(3):83-85. |
| |
| 作者姓名： | 邱发亮 |
| |
| 作者单位： | 湖南省湘潭矿业集团有限公司; |
| |
| 摘 要： | 临近既有采空区新建巷道的开挖必将对既有采空区的稳定性及其围岩应力状态产生明显影响,确保开挖过程中新建巷道以及既有采空区的稳定性具有重要工程意义。采用ANSYS数值分析软件建立相互影响力学模型,获得了新建巷道开挖引起的应力重分布规律。新建巷道改变了采空区顶板局部范围内的应力分布规律,但并不改变整个采空区围岩的应力分布趋势。通过岩体单元应力安全系数的比较分析,确定新建巷道距离采空区顶板的最小安全距离为18～20m。
|
| 关 键 词： | 采矿工程 采空区 新建巷道 稳定性 |
Study on the stability of new working tunnel adjacent to the exited underground opening |
| |
| QIU Fa-liang.Study on the stability of new working tunnel adjacent to the exited underground opening[J].Technological Development of Enterprise,2010,29(3):83-85. |
| |
| Authors: | QIU Fa-liang |
| |
| Institution: | QIU Fa-liang (Hunan Province,Xiangtan Mining Group Co.,Ltd.,Xiangtan,Hunan 411231,China) |
| |
| Abstract: | It has obviously effect on the stability and the stress state surrounding the original underground opening due to excavation of an adjacent new working tunnel in vicinity of an existing opening. It is remarkably important to ensure the stability of constructed and constructing underground opening. In this study,we have investigated the mutual effect of nearby new working tunnel on surrounding rock stability of underground opening. Numerical analyses using ANSYS code have been applied to determine the excava... |
| |
| Keywords: | mining engineering underground opening new working tunnel stability |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
