淮北矿区芦岭煤矿构造煤发育特征  

Tectonoclastic Coal Development Characteristics in Luling Coalmine,Huaibei Mining Area

作　　者：陈富勇[1] 

机构地区：[1]淮北矿业(集团)有限责任公司地测处,安徽淮北235006

出　　处：《中国煤炭地质》2008年第2期12-14,共3页Coal Geology of China

摘　　要：淮北矿区芦岭煤矿主采煤层8煤为特厚煤层,厚度2.72～17.75m,平均厚度9.60m,煤层硬度系数f为0.16～0.53,构造煤累计厚度约占全层厚度的65%～90%。剖面自上而下划分为碎裂煤、菱形包裹体煤、片状煤、鳞片煤和粉末状煤5种类型,构造类型煤相间分布。微观上网络状裂隙发育,密集的网络状裂隙交叉切割,显微组分破坏严重,煤层受构造作用影响越大,构造煤中的微孔所占比例也就越高。在平面上构造煤的发育可划分为东、中、西三部分,井田东部构造煤较发育,厚度占全层厚度的75%～80%;中部构造煤最发育,厚度占全层厚度的95%以上;井田西部构造煤所占比例相对较低,约占全层厚度的65%～70%。采区资料表明,在倾向上,随着煤层深度的增加,构造煤厚度占全层厚度比例呈上升趋势,-450-～460m水平以下,构造煤层所占比例明显增高,约占95%以上。The main mineable No.8 coal seam is an extra thick coal seam in the Luling coalmine, Huaibei mining area with thickness 2.72-17.75m, average 9.60m, coefficient of hardness f value 0.16-0.53, accumulated thickness of tectonoclastic coals account for 65%-90% of total thickness. Vertically from top to bottom can be divided into 5 types of cataclastic coal, rhombic inclusion coal, sheet coal, scaled coal and fine coal and alternatively distributed. Microscopically, reticulated fissures are well developed, dense reticulated fissures intersecting dissected, macerals seriously destructed. The more the coal impact by tectonic activities is the higher the proportion of micropore in tectonoclastic coals. Horizontally, the tectonoclastic coals can be divided into east, middle and west three parts： in the east part tectonoclastic coals are rather developed, account for 75%-80% of total thickness; middle part most developed, account for 95% more; west part relatively low, about 65%-70%. Mining area data demonstrated： dip directionally, along with coal seam depth increasing, tectonoclastic coal proportion in total seam thickness increasing, below the 450-460m level, tectonoclastic coal proportion has obviously increased, about 95% more.

关 键 词：构造煤 宏观类型 微观特征 发育特征 芦岭煤矿 

分 类 号：P618.11[天文地球—矿床学]