煤矿现代化
煤礦現代化
매광현대화
COAL MINE MODERNIZATION
2014年
6期
79-80,83
,共3页
高位钻场%高位抽放%瓦斯%预裂爆破%坚硬顶板
高位鑽場%高位抽放%瓦斯%預裂爆破%堅硬頂闆
고위찬장%고위추방%와사%예렬폭파%견경정판
high drilling field%high drainage%gas%presplitting blasting%hard roof
夏阔坦煤矿属于坚硬顶板、高瓦斯等自然灾害较多的矿井。由于坚硬顶板容易形成大面积悬顶，给瓦斯积聚提供了很大的空间，而当悬顶达到一定极限面积发生垮落时，大量积聚的瓦斯受挤压后瞬间释放，同时伴生岩石撞击、摩擦等引起的火花，极易引起瓦斯事故。1007综放工作面在回采过程中就面临顶板、火与瓦斯交织存在的难题，在同步使用了顺层钻孔抽放、上隅角埋管抽放、两进一回的偏Y型通风方式等多种综合防治措施后，仍然不能完全有效解决采空区内积聚的大量高浓度瓦斯，最后通过使用高位抽放、顶板强制预裂爆破技术，并不断对其进行优化，顺利实现了矿井在坚硬顶板、高瓦斯、厚煤层的条件下的安全开采。
夏闊坦煤礦屬于堅硬頂闆、高瓦斯等自然災害較多的礦井。由于堅硬頂闆容易形成大麵積懸頂，給瓦斯積聚提供瞭很大的空間，而噹懸頂達到一定極限麵積髮生垮落時，大量積聚的瓦斯受擠壓後瞬間釋放，同時伴生巖石撞擊、摩抆等引起的火花，極易引起瓦斯事故。1007綜放工作麵在迴採過程中就麵臨頂闆、火與瓦斯交織存在的難題，在同步使用瞭順層鑽孔抽放、上隅角埋管抽放、兩進一迴的偏Y型通風方式等多種綜閤防治措施後，仍然不能完全有效解決採空區內積聚的大量高濃度瓦斯，最後通過使用高位抽放、頂闆彊製預裂爆破技術，併不斷對其進行優化，順利實現瞭礦井在堅硬頂闆、高瓦斯、厚煤層的條件下的安全開採。
하활탄매광속우견경정판、고와사등자연재해교다적광정。유우견경정판용역형성대면적현정，급와사적취제공료흔대적공간，이당현정체도일정겁한면적발생과락시，대량적취적와사수제압후순간석방，동시반생암석당격、마찰등인기적화화，겁역인기와사사고。1007종방공작면재회채과정중취면림정판、화여와사교직존재적난제，재동보사용료순층찬공추방、상우각매관추방、량진일회적편Y형통풍방식등다충종합방치조시후，잉연불능완전유효해결채공구내적취적대량고농도와사，최후통과사용고위추방、정판강제예렬폭파기술，병불단대기진행우화，순리실현료광정재견경정판、고와사、후매층적조건하적안전개채。
Xia Kuotan coal mine is of multiple natural disasters such as hard roof and high gas. Hard roof can easily cause large area of over-hung roof, which would provide provides space for gas accumulation, when the roof overhung area reaches a certain limit and collapse occurs, a large accumulation of gas is instantaneously released after being squeezed, along with sparks that come out during associated rock impact and friction, gas accident can be easily caused. In the recovery process 1007 fully mechanized top coal caving face is facing the problems of existing roof, fire and gas. After simultaneous use of comprehensive prevention and control measures such as roadway drilling drainage, upper corner pipe drainage, and two in one return Y-Ventilation methods, high concentration of gas accumulation at the goaf can not be completely solved. Finally through the use of high drainage and roof reinforced pre-splitting blasting technology, and continuously optimization, safe min-ing under hard roof, high gas and thick seam conditions is smoothly realized.
