煤层注水软化工法及效果分析  

Coal seam water flooding softening method and effect analysis

作　　者：李兵 杜伟乾 李昱江 马擎 刘汉磊 LI Bing;DU Wei-qian;LI Yu-jiang;MA Qing;LIU Han-lei(Zhangshuanglou Coal Mine,Jiangsu Xuzhou Mining Energy Co.,Ltd.,Xuzhou 221616,China;School of Resources and Geosciences,China University of Mining Technology,Xuzhou 221116,China)

机构地区：[1]江苏徐矿能源股份有限公司张双楼煤矿,江苏徐州221616 [2]中国矿业大学资源与地球科学学院,江苏徐州221116

出　　处：《煤炭科技》2022年第1期74-77,82,共5页Coal Science & Technology Magazine

基　　金：国家自然科学基金资助项目(51974302)。

摘　　要：随着采掘深度的增加,张双楼煤矿采取高压注水的方式对深部煤层进行卸压,以降低冲击地压灾害发生的风险。为分析张双楼煤矿深部煤层的注水效果,重点研究了74104工作面注水孔附近10 m内煤层的含水率变化规律以及注水孔处煤样由浅及深的含水率变化规律。测试结果表明,距注水孔2、4、7 m位置处由浅至深取出的煤样,其含水率随着取样位置深入而逐渐增大,且相较于煤层天然含水率提升了1.66%~3.17%,此规律也验证了张双楼煤矿深部煤层的注水效果较好。With the increase of mining depth,high-pressure water injection was adopted to relieve the pressure of deep coal seam in Zhangshuanglou Coal Mine to reduce the risk of rock burst disaster.In order to analyze the water injection effect of deep coal seam in Zhangshuanlou Coal Mine,this test focused on the change law of water content of coal seam within 10 m near water injection hole of 74104 working face and the change law of water content of coal sample at water injection hole from shallow to deep.The test results showed that the water content of the coal samples taken from shallow to deep at 2 m,4 m and 7 m away from the water injection hole increases gradually with the depth of the sampling position,and the water content of the coal seam increases by 1.66%~3.17%compared with the natural coal seam.This law also verified that the water injection effect of deep coal seam in Zhangshuanglou Coal Mine is good.

关 键 词：冲击地压 高压注水 天然含水率 注水效果 

分 类 号：TD714[矿业工程—矿井通风与安全]