江西煤炭科技
江西煤炭科技
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JIANGXI COAL SCIENCE & TECHNOLOGY
2014年
2期
19-20
,共2页
工作面%瓦斯%顺层钻孔%采空区%抽放
工作麵%瓦斯%順層鑽孔%採空區%抽放
공작면%와사%순층찬공%채공구%추방
working face%gas%bedding drilling%goaf%drainage
260051工作面处于阳泉二矿7个高瓦斯区之首的Ⅰ＃高瓦斯区带，瓦斯涌出量骤然增大，且地质条件日益复杂，煤层厚度逐渐增大，煤质松软，煤层瓦斯含量和压力大幅度升高，绝对瓦斯涌出量由原0.4 m3/min猛增至3.5 m3/min左右，为保证260051工作面的安全回采，采取本煤层顺层钻孔抽放、采空区钻孔抽放等综合治理技术，根除了存在的诸多事故隐患，确保了工作面的安全回采。
260051工作麵處于暘泉二礦7箇高瓦斯區之首的Ⅰ＃高瓦斯區帶，瓦斯湧齣量驟然增大，且地質條件日益複雜，煤層厚度逐漸增大，煤質鬆軟，煤層瓦斯含量和壓力大幅度升高，絕對瓦斯湧齣量由原0.4 m3/min猛增至3.5 m3/min左右，為保證260051工作麵的安全迴採，採取本煤層順層鑽孔抽放、採空區鑽孔抽放等綜閤治理技術，根除瞭存在的諸多事故隱患，確保瞭工作麵的安全迴採。
260051공작면처우양천이광7개고와사구지수적Ⅰ＃고와사구대，와사용출량취연증대，차지질조건일익복잡，매층후도축점증대，매질송연，매층와사함량화압력대폭도승고，절대와사용출량유원0.4 m3/min맹증지3.5 m3/min좌우，위보증260051공작면적안전회채，채취본매층순층찬공추방、채공구찬공추방등종합치리기술，근제료존재적제다사고은환，학보료공작면적안전회채。
260051 working face lies in the No .1 high-gas zone with abruptly -increasing gas emission from 0 .4 m3/min to about 3 .5 m3/min due to the increasingly complicated geological conditions ,seam thickness ,soft coal quality and high gas content and pressure .To ensure the safety mining ,the author proposes two gas comprehen-sive control technologies of drainage with bedding drilling and drilling drainage in goaf ,which have eliminated the existing hazards and guaranteed the safety mining at working face .
