黑龙江科技大学学报2024，Vol.34Issue(4)：537-543,7.DOI:10.3969/j.issn.2095-7262.2024.04.007
老虎台矿28002工作面综放开采导水裂隙发育规律
Development law of water conducting cracks and prediction of water inflow in 28002 working face of Laohutai mine
摘要
Abstract
This paper is intended to investigate the developing height of the water conducting fracture zone in overlying strata of the fully mechanized mining.The study building on 28002 working face in the Laohutai mining area as the research background involves investigating the measured data of the water conducting fracture zone height in 12 groups of working faces in Laohutai mining area by using data analy-sis methods;obtaining the regression formula for calculating the height of the water conducting fracture zone;comprehensively predicting the development height of the water conducting fracture zone through a combination of theoretical calculation and numerical simulation methods;and observing the lithological characteristics of the aquifer above the fracture zone through drilling observation.The results show that according to the empirical formula,regression formula and numerical simulation,the developing height of water conducting fracture zone in 28002 working face after mining are 131.49,117.34 and 153.9 m,re-spectively.The highest developing point is located in the oil shale of Jijuntun formation,which serves as a good waterproof layer for providing effective protection for the roof waterproofing.However,through drilling observation,the shale aquifer above the Jijuntun formation has a relatively good degree of fracture development,which can easily form water conducting channels and affect the safe mining of the working face.关键词
导水裂隙带/老虎台矿/钻孔窥视Key words
water conducting fracture zone/Laohutai mine/drilling observation分类
矿业与冶金引用本文复制引用
金珠鹏,田彦卫,郑德强,侯斯阳..老虎台矿28002工作面综放开采导水裂隙发育规律[J].黑龙江科技大学学报,2024,34(4):537-543,7.基金项目
黑龙江省"揭榜挂帅"科技攻关项目(2021ZXJ02A03) （2021ZXJ02A03）
