本文選題：聚煤特征　切入點(diǎn)：賦存規(guī)律　出處：《西安科技大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：根據(jù)平頂山煤礦的現(xiàn)場(chǎng)勘查以及詳細(xì)的鉆孔資料，對(duì)平頂山煤礦含煤巖系的礦物成分、巖石結(jié)構(gòu)和其它成因標(biāo)志以及對(duì)煤層沉積的古地理環(huán)境進(jìn)行綜合分析，然后對(duì)煤層沉積環(huán)境和聚煤特征、沉積體系等進(jìn)行概述，在研究煤層賦存規(guī)律，分析煤層厚度的影響因素，以及對(duì)煤層厚度的變異系數(shù)進(jìn)行綜合評(píng)價(jià)的基礎(chǔ)上，利用地質(zhì)學(xué)原理與先進(jìn)的GIS技術(shù)對(duì)煤層賦存狀態(tài)、賦存環(huán)境及開采條件進(jìn)行評(píng)價(jià)。研究表明平頂山煤礦的主采煤層是戊8和丁6兩個(gè)煤層，區(qū)內(nèi)戊8(四3)煤層在統(tǒng)計(jì)的100個(gè)鉆孔中，含夾矸孔27孔，占27％，其中，含有1層夾矸的20孔，2層夾矸的7孔，夾矸厚0.05～0.82m，一般在0.30m以下，夾矸巖性主要為炭質(zhì)泥巖或泥巖。垂向上，夾矸層位主要位于煤層中下部或中上部；橫向上井田東部相對(duì)簡單，，西部相對(duì)復(fù)雜，綜合評(píng)價(jià)為結(jié)構(gòu)較簡單煤層，橫向上東部煤厚相對(duì)穩(wěn)定，西部變化相對(duì)較大，1m左右的煤厚點(diǎn)主要位于井田西部。丁6（五12）煤層分布于井田深部的東部，煤厚1.3～3.98m，平均2.20m，由東至西及向深部變厚，煤厚變異系數(shù)37.47％，可采性指數(shù)1.0，分叉區(qū)內(nèi)屬較穩(wěn)定全部可采煤層，煤層結(jié)構(gòu)簡單，局部含夾矸1層，厚0.05～0.40m。通過先進(jìn)的GIS技術(shù)對(duì)該煤田范圍內(nèi)的煤層賦存條件進(jìn)行綜合評(píng)價(jià)，進(jìn)一步揭示出該煤礦區(qū)的煤層賦存規(guī)律、賦存狀態(tài)以及賦存條件比較復(fù)雜的事實(shí)，給煤層開采帶來較大的影響。
[Abstract]:Based on the field exploration and detailed drilling data of Pingdingshan Coal Mine, the mineral composition, rock structure and other genetic markers of coal bearing rock series in Pingdingshan Coal Mine and the paleogeographic environment of coal bed deposition are comprehensively analyzed. Then the sedimentary environment, coal accumulation characteristics, sedimentary system and so on are summarized. Based on the study of coal seam occurrence law, the influence factors of coal seam thickness and the coefficient of variation of coal seam thickness, the comprehensive evaluation of coal seam thickness is carried out. The occurrence state, environment and mining conditions of coal seam are evaluated by using geological principles and advanced GIS technology. The results show that the main coal seam of Pingdingshan coal mine is two coal seams, Wu8 and Ding6, and the main coal seams in Pingdingshan coal mine are Wu8 and Ding6 coal seams. In the Wu8 (4.3) coal seam, among the 100 boreholes counted, 27 holes contain gangue holes, accounting for 27 holes. Among them, 20 holes containing one layer of gangue and 7 holes with two layers of gangue, generally below 0.30m, are generally below 0.30m. The rock properties of gangue are mainly carbonaceous mudstone or mudstone. The gangue bed is mainly located in the middle or upper part of the coal seam, the eastern part of the transverse upper mine field is relatively simple, the western part is relatively complex, and the comprehensive evaluation is that the coal seam with simple structure is relatively stable, and the coal thickness of the eastern part is relatively stable in the transverse direction. The coal thickness of the coal seam Ding6 (W12) is distributed in the east of the deep part of the mine field, and the coal thickness is 1.33.98 m (average 2.20 m), which is thickened from east to west and to the deep. The coefficient of variation of coal thickness is 37.47, the index of mining is 1.0, the bifurcation area is relatively stable, all the coal seams can be mined, the structure of coal seam is simple, the coal bed contains 1 layer of gangue, and the thickness is 0.05 ~ 0.40 m. Through advanced GIS technology, the occurrence conditions of coal seam in this coal field are comprehensively evaluated. It also reveals the fact that the coal seam occurrence law, occurrence state and occurrence condition are more complicated in this coal mine area, which has great influence on coal seam mining.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P618.11;P208

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