| 下峪口煤矿2号煤层赋存地质特征研究 |
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| 引用本文： | 任秀娟,;刘梅松,;包胜恩,;吴颖,;康社庄.下峪口煤矿2号煤层赋存地质特征研究[J].中国煤炭地质,2009(6):11-13. |
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| 作者姓名： | 任秀娟 ;刘梅松 ;包胜恩 ;吴颖 ;康社庄 |
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| 作者单位： | [1]陕西省煤田地质局186队,陕西西安710054; [2]韩城矿务局下峪口煤矿,陕西韩城715400; [3]西安科技大学,陕西西安710054; [4]内蒙古自治区煤田地质局,内蒙古呼和浩特010010 |
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| 基金项目： | 基金项目：陕西省自然科学基金（2005D01）. |
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| 摘 要： | 根据大量钻探及井下采掘揭露资料,探讨了下峪口煤矿2号煤层的赋存特征,分析表明2号煤属不稳定薄煤层,煤层总体厚度呈NE—SW向薄厚交替变化特点,区内可划分为两个相对的厚煤带和两个薄煤带。煤体结构以碎裂煤为主,兼有少量的糜棱煤及碎粒煤,,煤层顶以粉砂岩与砂岩顶板为主。通过对2号煤厚度变化分析,认为沉积环境、河流的同生冲刷及构造挤压是影响厚度变化的三个主要因素。
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| 关 键 词： | 2号煤层 赋存特征 影响因素 下峪口煤矿 |
Geological Hosting Characteristic Research on No.2 Coal Seam,Xiayukou Coalmine |
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| Institution: | Ren Xiujuan, Liu Meisong, Bao Shengen, Wu Ying and Kang Shezhuang (1.No.186 Exploration Team. Shaanxi Bureau of Coal Geological Exploration, Xian, Shaanxi 710054;3.Xian University of Science and Technology,Xian,Shaanxi 710054 ;4.Inner Mongolia Bureau of Coal Geological Exploration, Inner Mongolia 010010) |
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| Abstract: | According to a large number of drilling and underground mining to expose information,inherent features of the 2nd coal bed in Xiayukou mine are discussed. Analysis showed that the 2nd coal is instable thin seam, with the characteristics of coal seam＇s total thickness taking on NE-SW to thickness alternating. The area can be divided into two relatively thick and two thin coaX belts. Coal bed structure is mainly based on coal fragmentation, coupled by a small number of chips mylonite coal and top coal seam is mainly based on sihstone and sandstone roof. According to analysis of the 2nd coal＇s thickness, it is considered that depositional environment, erosion of rivers and structure extrusion are the three main factors of affecting thickness. |
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| Keywords: | the 2nd coal seam inherent features affecting factors Xiayukou mine |
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