| 地下矿山采场顶板厚度数值模拟研究 |
| |
| 引用本文： | 艾显恒,谢建兵,朱和玲.地下矿山采场顶板厚度数值模拟研究[J].矿业快报,2009(4):40-43. |
| |
| 作者姓名： | 艾显恒 谢建兵 朱和玲 |
| |
| 作者单位： | 云南驰宏锌锗股份有限公司;金诚信矿业建设集团有限公司;中南大学; |
| |
| 摘 要： | 通过结构力学解析法对顶板沉降量的计算,估算出能维持顶板稳定的厚度取值范围,运用FLAC3D软件建立了开采环境再造采场数值模型,并对不同厚度顶板进行模拟计算,揭示了顶板厚度对采场稳定性、应力分布以及顶板沉降量的影响规律,表明了塑性区、应力扰动范围以及沉降量都随着顶板厚度的增加而减小,且减小的幅度趋缓。以顶板沉降量为判据,模拟结果得出,顶板厚度是6m时的最大沉降量为6.376cm,满足矿山安全要求;同时,兼顾顶板施工工艺、构筑成本和服务年限,得出顶板的最小安全厚度宜取6m。
|
| 关 键 词： | 数值模拟 人工顶板安全厚度 FLAC3D |
Numerical Simulation of Artificial Roof Thickness of Underground Mine Stope |
| |
| Ai Xianheng Xie Jianbing, Zhu Heling.Numerical Simulation of Artificial Roof Thickness of Underground Mine Stope[J].Express Information of Mining Industry,2009(4):40-43. |
| |
| Authors: | Ai Xianheng Xie Jianbing Zhu Heling |
| |
| Affiliation: | 1.Yunnan Chihong Zn & Ge Co.;Ltd.;2.JCHX Mining Construction Group;3.Central South University |
| |
| Abstract: | The settling amount of artificial roof is calculated according to the structural mechanics analytical method,and the thickness range which can maintain the artificial roof stabilization has been obtained.The numerical model of stope based on reconstructed mining environment is built by the FLAC3D software,and the artificial roof with different thickness has been simulated.The numerical calculation revealed effect of the roof thickness on stope stability,stress distribution and roof settling amount.It showed... |
| |
| Keywords: | Numerical simulation Safety thickness of artificial roof FLAC3D |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
