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某矿山新掘绕道上覆岩层稳定性分析
- 朱明|王亚军
- 作者单位：
- 兰州有色冶金设计研究院有限公司|长沙矿山研究院有限责任公司
基金项目：
- isnull
详细信息：
- 作者简介：
- 朱明（1987—），男，高级工程师，硕士，从事采矿设计咨询工作；E-mail：569230004@qq.com
- 通讯作者：
- 王亚军（1991—），男，工程师，硕士，从事金属矿山地下开采工艺研究与开发相关的工作；E-mail:648324460@qq.com
- PDF下载
Stability analysis of overlying rock layers of a new excavation roadway in a mine
- English Author：
- Lanzhou Nonferrous Metallurgical Design and Research Institute Co.,Ltd.|Changsha Institute of Mining Research Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
某矿山为了更好地整合矿区内矿产资源，提高矿山生产能力及经济效益，拟在井下一期工程（一采区）矿产资源接近开采完毕的情况下，实施二期工程建设（二采区）。为论证一采区至二采区联络巷道的施工对地表村庄压覆岩层的影响情况，对研究范围内典型矿岩开展工程地质调查。根据矿山现场工程地质调查、室内岩石力学试验及岩体质量评价等结果，开展了新掘绕道对地表变形影响数值模拟分析研究。结果表明：一采区至二采区联络巷道开挖时，地表位移均小于10 mm，不会对地表村庄压覆岩层产生破坏。
关键词:
压覆岩层；岩体质量评价；工程地质调查；巷道开挖；数值模拟；稳定性
Abstract:
In order to better integrate mineral resources in the mining area and improve mine production capacity and economic benefits,a mine plans to implement phase Ⅱ project construction (mining area Ⅱ) when the mineral resources of phase Ⅰ underground project (mining area Ⅰ) are to be nearly depleted.The paper carried out an engineering geological survey on the typical ore rock in the study area in order to demonstrate the impact of the construction of connecting roadway from mining area Ⅰ to mining area Ⅱ on the overlying rock layers of surface villages.Based on the results of on-site engineering geological survey,indoor rock mechanics test,and rock mass quality evaluation,the numerical simulation analysis research on the impact of newly excavated roadway on surface deformation is carried out.The results show that the excavation of the roadway connecting mining area Ⅰ and mining area Ⅱ only results in minus 10 mm surface displacement and will not damage the overlying rock layers of the surface villages.
Keywords:
overlying rock layer;rock mass quality evaluation;engineering geological survey;roadway excavation;numerical simulation;stability