陕西煤炭2026，Vol.45Issue(1)：73-78,6.DOI:10.20120/j.cnki.issn.1671-749x.2026.0113
银星一号煤矿3号煤层顶板"两带"发育高度对比研究
Comparison for development height of"two zones"in No.3 coal seam roof of Yinxing No.1 Coal Mine
摘要
Abstract
In order to measure the development height of'two zones'in No.3 coal seam roof of Yinxing No.1 Coal Mine,110301 working face was selected as the test area,and the core,borehole flushing fluid consumption observation,borehole TV and other measurement methods were comprehensively used for measurement,and compared with the theoretical calcula-tion results.The results show that the mutation position of drilling flushing fluid consumption is the highest,and the calcula-tion result of the standard formula is the smallest.The analysis shows that the consumption of flushing fluid can only qualita-tively reflect the development degree of cracks,and is easily affected by factors such as the degree of communication be-tween pores and cracks in rock strata.The borehole TV can directly observe the development trend and subtle characteristics of cracks in the vertical direction,with high accuracy and reliability.Finally,the results of borehole TV imaging exploration are taken as the height value of water-conducting fracture zone under the conditions of 3 coal seam goaf,that is,56.95 m,and the ratio of fracture to mining is 17.58∶1.关键词
银星一号煤矿/3号煤层/煤层顶板/"两带"高度/钻孔实测Key words
Yinxing No.1 Coal Mine/No.3 coal seam/coal seam roof/"two-zone"height/drilling measurement分类
矿业与冶金引用本文复制引用
LI Yanjun,LU Cunjin,WANG Chen,TIAN Kuan..银星一号煤矿3号煤层顶板"两带"发育高度对比研究[J].陕西煤炭,2026,45(1):73-78,6.基金项目
国家资助博士后研究人员计划(GZC20233005) （GZC20233005）
中央高校基本科研业务费专项资金资助(项目批准号:2024QN11025) （项目批准号:2024QN11025）
国家自然科学基金面上项目(52274243) （52274243）
