摘要
为了防止煤层开采后导水裂隙带导通主要含水层对工作面开采造成影响,利用地表微震监测技术探查导水裂隙带发育高度。通过现场实测得出数据与公式理论计算、井下压水试验与井下钻孔电视成像、室内数值模拟等研究成果,综合分析,证明地表微震监测探查导水裂隙带发育高度技术是可行的。该技术克服了钻孔施工、压力试验等繁琐工程施工工序,避免了电视成像卡孔等技术难题,可以确定煤层顶板变形损坏后裂隙的发育规律,为煤层开采顶板裂隙带发育高度预计以及顶板水害防治工程设计提供参数依据。
In order to prevent the influence of the main aquifer on the mining face caused by the water conducting fracture zone after coal seam mining,this paper proposes to use surface microseismic monitoring technology to explore the development height of the water conducting fracture zone,which overcomes the tedious construction procedures such as drilling and pressure testing,avoids technical problems such as TV imaging jamming,determines the development law of cracks after deformation and damage of coal seam roof,and provides parameter basis for predicting the height of roof crack zone development in coal seam mining and designing roof water hazard prevention and control engineering.
作者
王修瑞
陈震洋
Wang Xiurui;Chen Zhenyang(Xuzhou Mining Industry Group Hami Energy Co.,Ltd.,Hami,Xinjiang 869009)
出处
《江西煤炭科技》
2024年第4期105-108,共4页
Jiangxi Coal Science & Technology
关键词
微震监测
导水裂隙带
压力试验
数值模拟
电视成像
microseismic monitoring
water-conducting fracture zone
pressure test
numerical simulation
television imaging
