本文關(guān)鍵詞： 斷裂構(gòu)造 灰色綜合模糊評判 定量評價 復雜等級劃分　出處：《安徽理工大學》2015年碩士論文　論文類型：學位論文

【摘要】：五溝煤礦地質(zhì)構(gòu)造復雜,為了實現(xiàn)安全高效開采,對五溝煤礦進行地質(zhì)構(gòu)造復雜程度定量評價是極有必要的.本文通過勘探資料、掘進資料和回采資料等的分析,對五溝煤礦的地質(zhì)構(gòu)造特征包括大中型斷層和小斷層的分布特征、褶曲構(gòu)造發(fā)育特征、構(gòu)造組合形式、控煤規(guī)律和礦井形成構(gòu)造期次及構(gòu)造應(yīng)力場進行了分析研究,通過運用灰色模糊綜合評判法對五溝礦井地質(zhì)構(gòu)造進行了定量評價,取得了以下成果： (1)礦區(qū)斷層以正斷層發(fā)育為主,大中型斷層中,正斷層占95%,并且落差較大,分布整個礦井,逆斷層占5%,落差較小,散亂的分布在礦井中。小斷層走向和傾向方向分布總體較為分散,推斷其受到了多期應(yīng)力的作用。褶曲構(gòu)造主要延伸方向為NW向。煤系地層走向總體呈波狀起伏。斷層分布具有成組及伴生性、等距性和成帶性。井田總體為斷裂構(gòu)造控煤,且以伸展斷裂控煤構(gòu)造為主,擠壓斷裂控煤構(gòu)造較少。 (2)通過分析構(gòu)造形成期次與構(gòu)造應(yīng)力場,得出五溝礦井地質(zhì)構(gòu)造為多期運動的產(chǎn)物。 (3)對礦井內(nèi)的含有測井曲線的鉆孔進行了解譯,并把解譯出來的構(gòu)造煤厚度和井下的觀察進行了對比分析,對礦井10煤煤層的煤體結(jié)構(gòu)進行了解釋,得出構(gòu)造煤受斷層和褶皺影響明顯；構(gòu)造煤厚度大的地方往往斷裂分維值和褶皺平面變形系數(shù)較大,這也顯示了地質(zhì)構(gòu)造對煤層煤體結(jié)構(gòu)的影響。 (4)從褶曲、斷層、構(gòu)造煤等方面,系統(tǒng)地分析了礦井地質(zhì)構(gòu)造特征,在綜合對比分析的基礎(chǔ)上,確定了構(gòu)造復雜程度定量評價指標,即：斷層密度、斷層強度、斷裂分維值、褶曲平面變形系數(shù)、構(gòu)造煤厚度；運用灰色模糊綜合評判方法,對礦井地質(zhì)構(gòu)造發(fā)育程度進行了定量評價得出：10煤層構(gòu)造復雜程度以中等和復雜為主。
[Abstract]:The geological structure of Wugou coal mine is complex. In order to realize safe and efficient mining, it is necessary to quantitatively evaluate the complexity of geological structure in Wugou coal mine. Through the analysis of exploration data, excavation data and mining data, etc., it is necessary to carry out quantitative evaluation of the geological structure complexity degree of Wugou coal mine. The geological structural characteristics of Wugou coal mine include the distribution characteristics of large and medium faults and small faults, the characteristics of fold structure development, the form of structural assemblage, the rules of coal control, the formation stages of coal mines and the tectonic stress field. By using the method of grey fuzzy comprehensive evaluation, the geological structure of Wugou mine is evaluated quantitatively, and the following results are obtained:. The faults in mining area are mainly developed by normal faults. Of the large and medium faults, normal faults account for 95%, and the drop is large. The whole mine is distributed, the reverse fault accounts for 5%, and the drop is relatively small. Scattered distribution in the mine. The distribution of small fault strike and inclined direction is generally scattered, It is inferred that it is affected by multistage stress. The main extension direction of fold structure is NW direction. The overall strike of coal measure strata is undulating and undulating. The distribution of faults is organized and associated, equidistant and zonation, and the coal is controlled by fault structure in general. Moreover, the extensional fault controlling coal structure is the main one, while the extrusion fault controlling coal structure is less. 2) based on the analysis of tectonic formation stage and tectonic stress field, it is concluded that the geological structure of Wugou mine is the product of multi-period movement. In this paper, the boreholes with log curves in the mine are interpreted, the thickness of the interpreted tectonic coal and the underground observation are compared and analyzed, and the coal body structure of the coal seam 10 in the mine is explained. It is concluded that tectonic coal is obviously affected by faults and folds, and that where the thickness of tectonic coal is large, the fractal dimension of faults and the deformation coefficient of fold plane are larger, which also shows the influence of geological structure on coal body structure in coal seam. (4) from the aspects of fold, fault and tectonic coal, this paper systematically analyzes the geological and structural characteristics of mine, and on the basis of comprehensive comparative analysis, determines the quantitative evaluation indexes of structural complexity, that is, fault density, fault strength, fracture fractal dimension, etc. Fold plane deformation coefficient, thickness of tectonic coal and grey fuzzy comprehensive evaluation method are used to quantitatively evaluate the development degree of geological structure in coal mine. It is concluded that the structural complexity of seam 10 is mainly medium and complex.
【學位授予單位】：安徽理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TD163.1

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