本文選題：礦井地質(zhì)類型　切入點：定量評價　出處：《西安科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：礦井地質(zhì)定量劃分是煤礦地質(zhì)工作的一項基礎(chǔ)工作,它關(guān)系到煤礦后續(xù)的生產(chǎn),因而具有非常重要的作用。礦井地質(zhì)類型定量評價主要涉及到礦井的構(gòu)造、煤層、水文、瓦斯、煤層頂?shù)装宓榷鄠�方面,本文以《煤礦地質(zhì)工作規(guī)定》、《煤、泥炭地質(zhì)勘查規(guī)范》(DZ/T0215-2002)與《煤礦防治水規(guī)定》為評價依據(jù),將評價數(shù)據(jù)整理到建好的地質(zhì)數(shù)據(jù)庫中,通過建立一整套評價體系,初步實現(xiàn)礦井地質(zhì)類型的定量評價。本文采用Vfp數(shù)據(jù)庫語言建立簡單的地質(zhì)數(shù)據(jù)庫,將礦井中涉及的地質(zhì)數(shù)據(jù)整理到地質(zhì)數(shù)據(jù)庫中,數(shù)據(jù)主要來源于礦井地質(zhì)臺賬,為后續(xù)礦井地質(zhì)類型劃分做好數(shù)據(jù)基礎(chǔ);構(gòu)造復(fù)雜程度主要涉及到礦井中的褶皺、斷層及巖漿巖,選取地質(zhì)構(gòu)造評價指標(biāo)及經(jīng)濟技術(shù)指標(biāo),選用灰色關(guān)聯(lián)法對指標(biāo)進行篩選并對指標(biāo)進行賦予權(quán)重,采用模糊綜合評價法進行構(gòu)造復(fù)雜程度等級的評定;煤層穩(wěn)定程度評價主要選擇數(shù)理統(tǒng)計的方法來計算煤層平均厚度、煤厚可采系數(shù)、煤厚變異系數(shù)這三個指標(biāo),從而來反映煤厚離散程度與可采性;選擇趨勢面分析的方法來說明煤層厚度的空間賦存特征及變化規(guī)律性,評價等級的評定選取模糊綜合評價法;礦井水文地質(zhì)評價主要將水文數(shù)據(jù)從數(shù)據(jù)庫表單中提取出來,對數(shù)據(jù)進行計算、分析,從而按照《煤礦防治水規(guī)定》,給出評價結(jié)果;礦井瓦斯地質(zhì)類型通過分析礦井瓦斯的涌出量,就可以給出最終評價結(jié)果;其他開采地質(zhì)條件的評價主要涉及到煤層頂?shù)装宸�(wěn)定性評價、煤層傾角與其他特殊地質(zhì)條件的評價,其中煤層頂?shù)装宸�(wěn)定性評價是一個難點,目前沒有一個統(tǒng)一的評價標(biāo)準(zhǔn),本文在借鑒文獻的基礎(chǔ)上,初步采用模糊綜合評價法對煤層頂?shù)装宸�(wěn)定性進行評價,但評價結(jié)果仍需后續(xù)不斷驗證;最終,采用“就高不就低”的原則,給出礦井地質(zhì)類型劃分結(jié)果。將建立好的評價體系應(yīng)用到東坡礦井中,定量評價結(jié)果與原有的定性評價結(jié)果一致,說明所建立的評價體系是正確的、合理的,從而可為其他礦井地質(zhì)定量劃分提供一定的借鑒作用。
[Abstract]:The quantitative classification of mine geology is a basic work of coal mine geological work, which is related to the follow-up production of coal mine, so it plays a very important role. The quantitative evaluation of mine geological type mainly involves the structure of mine, coal seam, hydrology, gas, etc. On the basis of coal mine geological work regulation, coal and peat geological exploration code, DZ / T0215-2002) and coal mine water control regulation, this paper collates the evaluation data into the established geological database. Through the establishment of a set of evaluation systems, the quantitative evaluation of mine geological types is preliminarily realized. In this paper, a simple geological database is established by using Vfp database language, and the geological data involved in the mine are arranged into the geological database. The data are mainly derived from mine geological records, which provide a good data basis for the subsequent classification of mine geological types; the structural complexity mainly relates to the folds, faults and magmatic rocks in the mine, and the evaluation indexes of geological structure and economic and technical indicators are selected. The grey correlation method is used to screen the index and give weight to the index, the fuzzy comprehensive evaluation method is used to evaluate the grade of structural complexity, and the mathematical statistical method is mainly used to calculate the average thickness of coal seam in the evaluation of coal seam stability. The coal thickness mining coefficient and coal thickness variation coefficient are the three indexes to reflect the coal thickness dispersion degree and mining ability, and the trend surface analysis method is chosen to explain the spatial occurrence characteristics and variation regularity of coal seam thickness. The fuzzy comprehensive evaluation method is selected for the evaluation of evaluation grade, and the hydrological data is extracted from the database form in the evaluation of mine hydrogeology, the data is calculated and analyzed, and the evaluation results are given according to the regulations on preventing and controlling Water in Coal Mines. By analyzing the quantity of gas emission, the final evaluation results can be obtained. The evaluation of other mining geological conditions mainly involves the evaluation of the stability of coal seam roof and floor, the evaluation of coal seam inclination angle and other special geological conditions. The stability evaluation of coal seam roof and floor is a difficult point, but there is no unified evaluation standard at present. Based on the reference of literature, this paper uses fuzzy comprehensive evaluation method to evaluate the stability of coal seam roof and floor. However, the evaluation results still need to be verified continuously. Finally, the classification results of mine geological types are given by using the principle of "whether high or low". The established evaluation system is applied to Dongpo mine. The quantitative evaluation results are consistent with the original qualitative evaluation results, which shows that the established evaluation system is correct and reasonable, which can be used for reference for the quantitative division of other mine geology.
【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】：2017
【分類號】：TD163

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