沁水煤田浅埋深沿空留巷围岩变形规律分析
|
摘要
针对山西煤炭进出口集团鹿台山煤业有限公司需要实施沿空留巷的实际情况,结合巷道周围的地质条件,通过理论分析,基于切顶卸压预裂爆破顶板技术,提出了切顶卸压沿空留巷支护方案,并连续观测工作面回采期间巷道围岩的变形数据,总结了切顶卸压沿空留巷矿压显现规律特征。
Aiming at the actual situation that Lutaishan Coal Industry Co., Ltd. of Shanxi Coal Imp. & Exp. Group needs to retain roadway along goaf, combining with the geological conditions around the roadway, this paper put forward the support scheme of roof-cutting decompression along goaf retaining roadway through theoretical analysis and using the technology of roof-cutting decompression pre-splitting blasting, and continuously observed the deformation data of roadway surrounding rock during the mining period of the working face, summarized the characteristics of mine pressure appearance in retained roadway by roof-cutting decompression.
Aiming at the actual situation that Lutaishan Coal Industry Co., Ltd. of Shanxi Coal Imp. & Exp. Group needs to retain roadway along goaf, combining with the geological conditions around the roadway, this paper put forward the support scheme of roof-cutting decompression along goaf retaining roadway through theoretical analysis and using the technology of roof-cutting decompression pre-splitting blasting, and continuously observed the deformation data of roadway surrounding rock during the mining period of the working face, summarized the characteristics of mine pressure appearance in retained roadway by roof-cutting decompression.
引文
[1]王巨光,王刚.切顶卸压沿空留巷技术探讨[J].煤炭工程,2012,44(1):24-26.
[2]胡建平.中厚煤层切顶卸压沿空留巷技术及应用[J].陕西煤炭,2017,36(1):123-126.
[3]王维维,李凤仪,蓝永伟.切顶卸压沿空留巷技术研究及应用[J].黑龙江科技大学学报,2014,24(1):20-23.
[4]薛斌,胡少平,雷亚勇.切顶卸压沿空留巷支护技术及矿压规律分析[J].陕西煤炭,2018(4):9-12.
[5]马资敏,郭志飚,陈上元.深部中厚煤层切顶留巷围岩变形规律与控制研究[J].煤炭科学技术,2018,46(2):112-118.
[2]胡建平.中厚煤层切顶卸压沿空留巷技术及应用[J].陕西煤炭,2017,36(1):123-126.
[3]王维维,李凤仪,蓝永伟.切顶卸压沿空留巷技术研究及应用[J].黑龙江科技大学学报,2014,24(1):20-23.
[4]薛斌,胡少平,雷亚勇.切顶卸压沿空留巷支护技术及矿压规律分析[J].陕西煤炭,2018(4):9-12.
[5]马资敏,郭志飚,陈上元.深部中厚煤层切顶留巷围岩变形规律与控制研究[J].煤炭科学技术,2018,46(2):112-118.