|
| 漳村煤矿2502工作面过X12陷落柱方案的探究 |
| Study on scheme——the collapse column of working face x12 of Zhangcun Coal Mine 2502 |
| 投稿时间：2016-09-28 修订日期：2016-09-28 |
| DOI： |
| 中文关键词: 陷落柱 数值模拟 爆破采煤 工程实践 |
| 英文关键词: collapse column numerical simulation blasting mining engineering practice |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
|
| 摘要点击次数: 2302 |
| 全文下载次数: 2136 |
| 中文摘要: |
| 针对漳村煤矿2502工作面X12陷落柱情况，本文运用FLAC3D数值软件模拟对工作面推进过程中陷落柱变形及煤层中应力变化情况进行了研究，研究结果表明：随着开采的进行，逐渐出现了较明显的应力集中现象。在过陷落柱期间，工作面顶板的破坏范围大约在54m,而底板的的破坏范围大约在22m。开采到距陷落柱35m时，采动作用对陷落柱开始作用。对过X12陷落柱进行可行性分析得出，采用采煤机截割与放炮破碎相结合的方式强行通过。工程实践表明，该方案保证了工作面的连续推进，不仅有效的控制了陷落柱对生产的影响，提高的煤炭资源的回收率，而且能为以后的工作面过陷落柱提供技术指导。 |
| 英文摘要: |
| Aiming at the condition, the collapse column of working face x12 of Zhangcun Coal Mine 2502, this paper uses the FLAC3D numerical software simulating collapse column deformation in coal seam and stress change in the advancing process of working face to study, the results show that: in the wake of the mining, it is obvious that the gradual emergence of stress concentration phenomenon.During the collapse column, damage range of roof of working face is about 54m, and the footwall is about 22m. From mining to collapse column 35m, which affected by mining action at the same time.It can be deduced that the combination of coal mining machine cutting blasting and crushing could force a passage when we carry on the feasibility analysis to it.The engineering practice indicates that the project guarantees the continuous advancing working face, not only can effectively control the influence of the collapsing column on the production, improve the recovery percent of coal resources, but also can provide relevant technical guidance for the collapse column working face in later as well. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
