摘要
针对富水厚砂层下分层开采问题,在分析矿井具体地质条件与开采条件基础上,采用地面钻孔冲洗液漏失量观测法对分层综采覆岩破坏高度进行了现场探测,确定了导水裂隙带发育高度,判定了矿井的覆岩破坏规律,为矿井水体下安全开采提供了参考依据。
In view of a slicing mining problem under a watery thick sand stratum, based on an analysis on certain geological condition and mining condition of the mine,a leakage observation method of the surface drilling flushing liquid was applied to a site detection of the failure height of the overburden strata in the fully mechanized slicing mining. A development height of the water flow cracking zone was determined and the overburden strata failure law of the mine was judged,which could provide reference basis to the safety mining under a water body in underground mine.
引文
[1]国家煤炭工业局.建筑物、水体、铁路及主要井巷煤柱留设与压煤开采规程[M].北京:煤炭工业出版社,2000.
[2]余学义.孟加拉国巴拉普库利亚煤矿特厚煤层分层开采覆岩导水裂隙带高度观测研究报告[R].2012.
[3]康永华,王济忠,孔凡铭,等.覆岩破坏的钻孔观测方法[J].煤炭科学技术,2002,30(12):26-28.
[4]汪华君,姜福兴,成云海,等.覆岩导水裂隙带高度的微地震(MS)监测研究[J].煤炭工程,2005(3):74-76.
[5]任奋华,蔡美峰,来兴平.采空区覆岩破坏高度监测分析[J].北京科技大学学报,2004,26(2):115-117.
[6]赵和松.顶板再生机理及参数的研究[J].煤炭科学技术,1992,5(3):11-14.
[7]张壮路.强含水层下特厚煤层开采顶板透水性预测[J].西部探矿工程,2007,19(2):88-90.
[8]李家卓,方庆河,谭文峰,等.覆岩裂隙带发育高度数值模拟与探测[J].金属矿山,2011,15(6):42-45.
[9]朱伟.高强度综采中至坚硬覆岩裂缝带发育规律研究[J].煤炭工程,2011,43(1):60-63.