摘要
为确保带压开采工作面顺槽巷道掘进期间的安全稳定,以岳城煤矿151302工作面条件为背景,开展了工作面灰岩突水危险性精细化评价研究。结论如下:(1)分析了151302工作面顶板含水层特性及工作面充水因素,确定工作面胶带进风顺槽掘进期间不受上层老空水和地表水影响,顶板K_(2)石灰岩岩溶隙含水层水的影响有限。(2)对151302工作面胶带进风顺槽掘进区域底板灰岩含水层富水性进行了分析,并对灰岩导水发育高度、底板安全隔水层厚度、突水系数等参数进行了计算。根据计算结果以及151302工作面地质条件,工作面能够实现安全承压开采。
In order to ensure the safety and stability in driving the crossheading at 151302 working face under pressure in Yuecheng Colliery,the paper makes a fine evaluation study on the risk of limestone water inrush at the working face,whose conclusions are as follows:firstly,it is determined that the belt air inlet tunnel during driving is not affected by the goaf water and surface water in the upper layer and the influence of roof K_(2)on karst fissure aquifer water is limited by analyzing the characteristics of the floor aquifer and the factors of water filling at 151302 working face;and secondly,the water abundance of floor limestone aquifer in the excavation area is analyzed and the development height of limestone water diversion,the thickness of floor safe water resisting layer and water inrush coefficient are calculated,which can realize safety mining under pressure.
作者
王晓佳
Wang Xiaojia(Geological Survey Dept..of Yuecheng Colliery,Qinxiu Co.,Jincheng Coal Division,Jinneng Holding Group Co.,Jincheng,Shanxi 048200)
出处
《江西煤炭科技》
2023年第1期135-137,共3页
Jiangxi Coal Science & Technology
关键词
工作面
带压开采
含水层
突水系数
working face
mining under pressure
aquifer
water inrush coefficient
作者简介
王晓佳(1987-),男,山西临汾人,采煤助理工程师,现从事煤矿地质防治水工作。
