阿勒安道矿区煤层赋存规律研究

发布时间：2018-11-05 13:19

【摘要】：卡姆斯特煤田是近些年发现的,隐伏状态下的含煤盆地。储藏有丰富的煤炭资源,使阿勒泰地区摘掉了缺煤的帽子,为当地的工农业发展提供了能源基地。本文选择了含煤情况好、勘探程度较高的阿勒安道矿区为研究重点,通过对矿区及周边勘查区煤层赋存规律的分析研究,为矿区外围的地质勘查工作提供地质理论依据,为未来矿井的设计及开采提供生产指导。本文以阿勒安道矿区现有的钻探、物探、样品化验等综合地质勘探资料为依据,对矿区含煤岩系的沉积特征、构造发育规律、主采煤层煤岩煤质特征及可采煤层厚度变化规律等进行了系统总结和分析。应用煤层可采性指数(Km);煤层厚度变异系数(γ)的方法,结合CGIS、MAPGIS等相关软件对主采煤层厚度变化及稳定性进行了分析研究。研究结果表明:B_1煤层厚度总体变化趋势为由向斜W1轴部向两翼逐渐变薄,在矿区东部的精2-7孔和25-8孔附近及西部的20-6孔附近形成了两个厚煤区;B_2煤层厚度总体变化趋势为由矿区东部向西部逐渐变厚,在矿东部的F-3孔附近及西部的17-10孔附近形成了两个厚煤区;B_3煤层厚度总体变化趋势为由矿区东部向西部逐渐变厚,在矿区西部的19-3孔和19-4附近形成了一个厚煤区。B_1、B_2、B_3三层煤厚度变化有一共同规律即矿区西南部由于断层影响造成煤层缺失区;B_2和B_3煤在研究区东南部与B_1煤合层;B_2和B_3煤层厚度总体变化趋势基本一致,均由研究区东部向西部逐渐变厚。最后得出了三层煤总体属较稳定性煤层。找出了使煤层厚度变化主要因素为:沉积环境和后期构造。
[Abstract]:Kamster coalfield is a coal-bearing basin discovered in recent years. Rich in coal reserves, Altay region to remove the lack of coal cap, for the local industrial and agricultural development of the energy base. In this paper, we select Aleandao mining area with good coal content and high exploration degree as the research focus. Through the analysis and study of the coal seam occurrence law in the mining area and its surrounding exploration area, it provides the geological theory basis for the geological exploration work in the periphery of the mining area. For the future mine design and mining to provide production guidance. Based on the existing comprehensive geological exploration data such as drilling, geophysical exploration and sample testing in Aleandao mining area, the sedimentary characteristics and tectonic development laws of coal-bearing rock series in the mining area are studied in this paper. The coal quality characteristics of main coal seam and the variation law of coal seam thickness are systematically summarized and analyzed. The variation and stability of coal seam thickness in the main mining seam were studied by using the coal seam mining index (Km); coal seam thickness variation coefficient (纬) combined with CGIS,MAPGIS and other related software. The results show that: the overall change trend of the thickness of coal bed B1 is that the axis of the syncline W1 becomes thinner gradually, and two thick coal zones are formed near the fine 2-7 and 25-8 holes in the east of the mining area and the 20-6 holes in the west of the mining area; The general change trend of the thickness of B _ 2 coal seam is that the east of the mine becomes thicker to the west, and two thick coal areas are formed near the F-3 hole in the eastern part of the mine and the 17-10 hole in the west. The general change trend of B3 coal seam thickness is that the east of the mining area becomes thicker to the west, and a thick coal area is formed near the 19-3 hole and 19-4 hole in the west of the mining area. There is a common rule for the thickness change of B3 three-layer coal, that is, the coal seam missing area is caused by fault in the southwest of mining area. The thickness of BSP _ 2 and B _ S _ 3 coal beds in the southeastern part of the study area is basically the same as that of BSP _ 1 coal seam, and the thickness of BSP _ 2 and B _ S _ 3 coal seams is gradually thickening from the east to the west of the study area. Finally, it is concluded that the three-layer coal is a relatively stable coal seam as a whole. The main factors that make coal seam thickness change are sedimentary environment and late structure.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.11

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