煤矿开采
煤礦開採
매광개채
COAL MINING TECHNOLOGY
2015年
2期
106-109
,共4页
煤与瓦斯突出%保护层%选择
煤與瓦斯突齣%保護層%選擇
매여와사돌출%보호층%선택
coal-and-methane outburst%protective coal-seam%selection
对于煤层层数较多的近距离煤层群且具有高瓦斯或煤与瓦斯突出的矿井，首采层选择对矿井安全生产至关重要。以贵州肥田矿井为例，按照《防突规定》，从井田内上下煤组实测的瓦斯突出参数、煤层赋存状况、瓦斯巷布置的空间条件、开采技术条件及区段石门揭穿突出煤层次数等方面综合分析论证，最终选择下煤组16号煤层作为保护层先行开采。
對于煤層層數較多的近距離煤層群且具有高瓦斯或煤與瓦斯突齣的礦井，首採層選擇對礦井安全生產至關重要。以貴州肥田礦井為例，按照《防突規定》，從井田內上下煤組實測的瓦斯突齣參數、煤層賦存狀況、瓦斯巷佈置的空間條件、開採技術條件及區段石門揭穿突齣煤層次數等方麵綜閤分析論證，最終選擇下煤組16號煤層作為保護層先行開採。
대우매층층수교다적근거리매층군차구유고와사혹매여와사돌출적광정，수채층선택대광정안전생산지관중요。이귀주비전광정위례，안조《방돌규정》，종정전내상하매조실측적와사돌출삼수、매층부존상황、와사항포치적공간조건、개채기술조건급구단석문게천돌출매층차수등방면종합분석론증，최종선택하매조16호매층작위보호층선행개채。
For the high-methane or coal-and-methane outburst mines with close-distance coal-seams, selection of primary-mining coal-seam was very important. For Feitian Mine, according to outburst prevention regulations, from methane outburst parameters, coal-seam occurrence state, space condition of methane roadway arrangement, mining condition and times of section crossdrift uncovering coal, 16th coal-seam of lower-group was selected as protective seam.
