| 充填体对地表沉降控制的研究 |
| |
| 引用本文： | 王新民,吴鹏,刘晓玲,赵建文.充填体对地表沉降控制的研究[J].矿冶工程,2011,31(5):1-3. |
| |
| 作者姓名： | 王新民 吴鹏 刘晓玲 赵建文 |
| |
| 作者单位： | 中南大学 资源与安全工程学院, 湖南 长沙 410083 |
| |
| 基金项目： | 科技部“十一五”科技支撑计划课题:露天境界外驻留矿安全高效开采方法及工艺研究(2008BAB32B03) |
| |
| 摘 要： | 基于某煤矿使用煤矸石胶结充填开采的工程实例, 对充填工作面的上覆围岩的移动变形进行了模拟研究。运用Midas GTS建立了三维模型, 采用有限元分析方法研究了充填采场的稳定性状态。研究结果表明: 充填后的工作面上覆围岩的位移为0.0314398 m, 远小于采空区顶板的位移0.101611 m;充填后的顶板基本不产生拉应力, 而空区的最大拉应力达3.47156 MPa。由此可知充填体的加入, 有效的控制了工作面上覆岩层的位移, 使煤层上方650 m的地表不发生沉降;对地应力的控制效果非常明显, 使地应力重新恢复到稳定状态。
|
| 关 键 词： | 充填体 沉降 数值模拟 稳定性 |
| 收稿时间： | 2011-03-04 |
Control of Ground Subsidence by Backfilling |
| |
| WANG Xin-min,WU Peng,LIU Xiao-ling,ZHAO Jian-wen.Control of Ground Subsidence by Backfilling[J].Mining and Metallurgical Engineering,2011,31(5):1-3. |
| |
| Authors: | WANG Xin-min WU Peng LIU Xiao-ling ZHAO Jian-wen |
| |
| Affiliation: | School of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, China |
| |
| Abstract: | Based on the practice of cut-and-fill mining in a coal mine with coal gangue used for cemented backfilling,a simulation study was conducted on the movement and deformation of the overburden on backfilling working face.Based on a three-dimensional model established with Midas GTS,stability of backfilling stope was analyzed with finite element method.Results showed that the displacement of the overburden on the working face after filling is 0.0314398 m,far less than the displacement(0.101611 m) of the roof in... |
| |
| Keywords: | backfill settlement numerical simulation stability |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《矿冶工程》浏览原始摘要信息 |
|
点击此处可从《矿冶工程》下载全文 |
|
