發(fā)布時(shí)間：2018-11-05 13:19

【摘要】：卡姆斯特煤田是近些年發(fā)現(xiàn)的,隱伏狀態(tài)下的含煤盆地。儲藏有豐富的煤炭資源,使阿勒泰地區(qū)摘掉了缺煤的帽子,為當(dāng)?shù)氐墓まr(nóng)業(yè)發(fā)展提供了能源基地。本文選擇了含煤情況好、勘探程度較高的阿勒安道礦區(qū)為研究重點(diǎn),通過對礦區(qū)及周邊勘查區(qū)煤層賦存規(guī)律的分析研究,為礦區(qū)外圍的地質(zhì)勘查工作提供地質(zhì)理論依據(jù),為未來礦井的設(shè)計(jì)及開采提供生產(chǎn)指導(dǎo)。本文以阿勒安道礦區(qū)現(xiàn)有的鉆探、物探、樣品化驗(yàn)等綜合地質(zhì)勘探資料為依據(jù),對礦區(qū)含煤巖系的沉積特征、構(gòu)造發(fā)育規(guī)律、主采煤層煤巖煤質(zhì)特征及可采煤層厚度變化規(guī)律等進(jìn)行了系統(tǒng)總結(jié)和分析。應(yīng)用煤層可采性指數(shù)(Km);煤層厚度變異系數(shù)(γ)的方法,結(jié)合CGIS、MAPGIS等相關(guān)軟件對主采煤層厚度變化及穩(wěn)定性進(jìn)行了分析研究。研究結(jié)果表明:B_1煤層厚度總體變化趨勢為由向斜W1軸部向兩翼逐漸變薄,在礦區(qū)東部的精2-7孔和25-8孔附近及西部的20-6孔附近形成了兩個(gè)厚煤區(qū);B_2煤層厚度總體變化趨勢為由礦區(qū)東部向西部逐漸變厚,在礦東部的F-3孔附近及西部的17-10孔附近形成了兩個(gè)厚煤區(qū);B_3煤層厚度總體變化趨勢為由礦區(qū)東部向西部逐漸變厚,在礦區(qū)西部的19-3孔和19-4附近形成了一個(gè)厚煤區(qū)。B_1、B_2、B_3三層煤厚度變化有一共同規(guī)律即礦區(qū)西南部由于斷層影響造成煤層缺失區(qū);B_2和B_3煤在研究區(qū)東南部與B_1煤合層;B_2和B_3煤層厚度總體變化趨勢基本一致,均由研究區(qū)東部向西部逐漸變厚。最后得出了三層煤總體屬較穩(wěn)定性煤層。找出了使煤層厚度變化主要因素為:沉積環(huán)境和后期構(gòu)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 (緯) 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.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.11

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