煤炭工程 ›› 2017, Vol. 49 ›› Issue (10): 48-51.doi: 10.11799/ce201710011

• 设计技术 • 上一篇    下一篇

厚黄土层矿区建(构)筑物下条带开采合理尺度多因素设计方法

孟毅1,庞振忠2,张新国3,闫玉岗1,李飞3   

  1. 1. 霍州煤电丰裕煤业
    2.
    3. 山东科技大学
  • 收稿日期:2017-04-06 修回日期:2017-05-22 出版日期:2017-10-25 发布日期:2018-03-22
  • 通讯作者: 孟毅 E-mail:pzz17864292900@163.com

Multi factor design method for reasonable scale of mining under construction in the thick loess mining area

  • Received:2017-04-06 Revised:2017-05-22 Online:2017-10-25 Published:2018-03-22

摘要: 针对西部厚黄土层压煤矿区条带开采以维持地表建(构)筑物稳定性合理尺度设计难题,以丰裕煤矿12采区为工程背景,综合运用理论分析、工程类比及现场实测等方法,从地表允许变形值、煤柱稳定性、回采率等三方面,研究并提出建(构)筑物下条带开采合理尺度多因素的设计方法。研究结果表明:根据理论计算可得十二采区工作面最佳开采宽度为60m,最佳留设煤柱宽度为60m,所采用的开采方案对地表造成的移动变形及沉陷均较小,能够保证对地表建筑物安全使用并同时提高了采出率。研究成果在丰裕煤矿12采区成功的布置了10个回采工作面,将原条带采出率由37.5%变为50%,相关研究成果对类似条件下的煤炭开采具有一定的借鉴意义和应用价值。

Abstract: Aiming at the problem of reasonable scale design of strip mining in thick coal seam mining area in Western China in order to maintain the stability of surface structure,With abundant coal mine 12 mining area as engineering background,Using a combination of theoretical analysis,engineering analogy and field measurement methods, from the surface to allow deformation and stability of coal pillar, the recovery rate of the three aspects, and puts forward the research building (structure) design method of multi factor reasonable scale of mining under buildings。The results show that:According to the theoretical calculation, the best mining width of the twelve mining face is 60m, and the best coal pillar width is 60m, The movement and deformation caused by the mining scheme are small, which can ensure the safe use of the surface and increase the recovery rate. The research results in the abundance of 12 coal mining area the success of the layout of the 10 working face, the strip mining rate changed from 37.5% to 50%, the research has certain reference significance and application value of coal mining under similar conditions.

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