中国煤炭
中國煤炭
중국매탄
CHINA COAL
2014年
7期
119-121
,共3页
突出煤层%应力集中%深孔松动爆破%技术参数%钻孔布置
突齣煤層%應力集中%深孔鬆動爆破%技術參數%鑽孔佈置
돌출매층%응력집중%심공송동폭파%기술삼수%찬공포치
outburst coal seam%stress concentration%deep-hole loosening blasting%technical parameters%borehole location
为解决突出矿井煤与瓦斯突出灾害和地应力两大灾害相互叠加、诱导突出，造成工作面煤体较大面积垮落，随之瓦斯浓度超限技术难题，平煤股份十矿在工作面上隅角及高位巷进行了瓦斯抽放，利用声发射、无线电坑透和矿山CT等技术，采取深孔松动爆破等措施进行消突治理，确定了钻孔主要技术参数、钻孔布置方式.采用深孔松动爆破措施后，己15-24080工作面回风流瓦斯浓度由松动爆破前的0.65％下降到松动爆破后的0.41％.
為解決突齣礦井煤與瓦斯突齣災害和地應力兩大災害相互疊加、誘導突齣，造成工作麵煤體較大麵積垮落，隨之瓦斯濃度超限技術難題，平煤股份十礦在工作麵上隅角及高位巷進行瞭瓦斯抽放，利用聲髮射、無線電坑透和礦山CT等技術，採取深孔鬆動爆破等措施進行消突治理，確定瞭鑽孔主要技術參數、鑽孔佈置方式.採用深孔鬆動爆破措施後，己15-24080工作麵迴風流瓦斯濃度由鬆動爆破前的0.65％下降到鬆動爆破後的0.41％.
위해결돌출광정매여와사돌출재해화지응력량대재해상호첩가、유도돌출，조성공작면매체교대면적과락，수지와사농도초한기술난제，평매고빈십광재공작면상우각급고위항진행료와사추방，이용성발사、무선전갱투화광산CT등기술，채취심공송동폭파등조시진행소돌치리，학정료찬공주요기술삼수、찬공포치방식.채용심공송동폭파조시후，기15-24080공작면회풍류와사농도유송동폭파전적0.65％하강도송동폭파후적0.41％.
To solve such technical problems as large-area coal caving and gas overrun at working face caused by double disasters-coal and gas outburst and high geostress,the gas was drained in the upper corner of the working face and in the high-level roadway in No. 10 Mine of Pingdingshan Tianan Coal Group Co.,Ltd.. Using acoustic emission,radio mine locator and mining CT,the loosening blasting in deep holes was carried out to eliminate outburst,and the main technical parameters of boreholes and their location. After loosening blasting,the gas con-centration in return air of F15-24080 working face was decreased from 0.65% to 0.41%.
