中国煤炭
中國煤炭
중국매탄
CHINA COAL
2014年
2期
90-94
,共5页
李栋%何兴玲%张邦安%覃乐%廖春奎%贺洪才
李棟%何興玲%張邦安%覃樂%廖春奎%賀洪纔
리동%하흥령%장방안%담악%료춘규%하홍재
急倾斜近距离煤层群%保护层开采%卸压瓦斯%卸压增透%采动裂隙%瓦斯抽采
急傾斜近距離煤層群%保護層開採%卸壓瓦斯%卸壓增透%採動裂隙%瓦斯抽採
급경사근거리매층군%보호층개채%사압와사%사압증투%채동렬극%와사추채
adjacent steeply inclined coal seam group%protective seam mining%pressure re-lief gas%pressure relief and enhanced permeability%mining-induced fracture%gas drainage
为高效抽采中梁山南矿急倾斜近距离薄煤层群保护层开采的卸压瓦斯，采用理论计算与现场考察试验相结合的方法，研究了中梁山煤矿保护层开采采动裂隙分布及卸压瓦斯运移规律。利用保护层开采的卸压增透效应，结合中梁山南矿地质条件，建立了急倾斜近距离薄煤层群卸压瓦斯分层分源综合立体抽采技术，瓦斯抽采率达到了70％以上，克服了单一平面抽采技术的不足。
為高效抽採中樑山南礦急傾斜近距離薄煤層群保護層開採的卸壓瓦斯，採用理論計算與現場攷察試驗相結閤的方法，研究瞭中樑山煤礦保護層開採採動裂隙分佈及卸壓瓦斯運移規律。利用保護層開採的卸壓增透效應，結閤中樑山南礦地質條件，建立瞭急傾斜近距離薄煤層群卸壓瓦斯分層分源綜閤立體抽採技術，瓦斯抽採率達到瞭70％以上，剋服瞭單一平麵抽採技術的不足。
위고효추채중량산남광급경사근거리박매층군보호층개채적사압와사，채용이론계산여현장고찰시험상결합적방법，연구료중량산매광보호층개채채동렬극분포급사압와사운이규률。이용보호층개채적사압증투효응，결합중량산남광지질조건，건립료급경사근거리박매층군사압와사분층분원종합입체추채기술，와사추채솔체도료70％이상，극복료단일평면추채기술적불족。
In order to efficiently drain pressure relief gas for protective seam mining of adj a-cent steeply inclined thin coal seam group in southern mine of Zhongliangshan Coal Mine,the theoretical calculation as well as site investigation and test were combined to research the distri-bution of mining-induced fissure zone during protective seam mining and pressure relief gas mi-gration law.Taking advantage of pressure relief and enhanced permeabiity as well as geological conditions of southern mine,3D comprehensive pressure relief gas drainage technique was built up for adj acent steeply inclined thin coal seam group according to different coal seams and gas re-sources.The gas drainage rate was up to over 70 %,overcoming the disadvantages of gas drain-age on a single plane.
