本文選題：瓦斯預(yù)測 + 數(shù)值模擬　； 參考：《遼寧工程技術(shù)大學(xué)》2013年碩士論文

【摘要】：近些年來,隨著礦井機(jī)械化程度的提高,礦井開采強(qiáng)度的加大,開采深度的加深,礦井災(zāi)害業(yè)隨之增多。反應(yīng)比較突出的是礦井的瓦斯含量增大,瓦斯涌出量的增大,瓦斯壓力的增大,一些礦井地質(zhì)構(gòu)造復(fù)雜等。為了有效的防治瓦斯事故,我們必須做好煤礦瓦斯的防治工作,減少和消除瓦斯事故,這不僅是煤礦安全生產(chǎn)的需要,也是礦井實(shí)現(xiàn)高產(chǎn)高效的需要,更是落實(shí)以人為本、創(chuàng)建和諧社會(huì)的需要。同時(shí),搞好煤礦瓦斯治理,對(duì)促進(jìn)經(jīng)濟(jì)建設(shè)具有重要的意義和實(shí)際應(yīng)用價(jià)值。 撫順市徐家大溝煤礦是煤與瓦斯突出礦井。該礦井現(xiàn)開采兩個(gè)煤層,分別為J_9煤和C_(12)煤,兩煤層層間距為30m。經(jīng)過預(yù)測C_(12)煤層瓦斯含量、瓦斯壓力均較大,確定其為突出煤層。所以在對(duì)C12煤層進(jìn)行開采前必須對(duì)該煤層在防止煤與瓦斯突出方面進(jìn)行研究,預(yù)測未開采區(qū)域的瓦斯涌出量、瓦斯壓力、瓦斯含量。制定有效的防突技術(shù)措施,實(shí)現(xiàn)安全生產(chǎn)。 本論文主要針對(duì)徐家大溝煤礦可采煤層的瓦斯賦存情況進(jìn)行研究,預(yù)測煤層瓦斯涌出量,瓦斯壓力。通過模擬分析工作面開采后頂?shù)装鍘r層破壞規(guī)律,工作面開采時(shí)煤層頂?shù)装辶严蹲兓瘮?shù)值對(duì)礦井的采場、圍巖的變化規(guī)律進(jìn)行了定性、定量的研究分析。獲得了科學(xué)可靠的分析數(shù)據(jù)。同時(shí)結(jié)合煤與瓦斯突出的規(guī)定提出了相應(yīng)的防治措施。通過研究分析,確定了進(jìn)行瓦斯抽采的參數(shù)和數(shù)據(jù),為礦井今后進(jìn)行瓦斯防治,合理進(jìn)行開采提供可參考的資料。并采取行之有效的區(qū)域防突措施以及局部防突措施。
[Abstract]:In recent years, with the increase of mechanization, mining intensity and mining depth, the mine disaster industry increases. The more outburst reaction is the increase of gas content, gas emission, gas pressure and complex geological structure in some mines. In order to prevent and control gas accidents effectively, we must do well the prevention and control of coal mine gas, reduce and eliminate gas accidents, which is not only the need of coal mine safety production, but also the need of mine to achieve high production and efficiency, but also to implement people-oriented. The need to create a harmonious society. At the same time, it is of great significance and practical application value to improve the economic construction of coal mine gas control. Fushun Xujiagou coal mine is a coal and gas outburst mine. The mine is now mining two coal seams, Jji 9 and Che 12) coal, the interval between the two coal layers is 30 m. After predicting the gas content in the coal seam, the gas pressure is high, and it is determined as the outburst coal seam. So it is necessary to study the prevention of coal and gas outburst in the coal seam C12 before mining, to predict the amount of gas emission, gas pressure and gas content in the unmined area. Formulate effective technical measures to prevent outburst and realize safety in production. In this paper, the gas occurrence of coal seam in Xujiagou coal mine is studied, and the quantity of gas emission and gas pressure are predicted. Through the simulation analysis of the failure law of the roof and floor strata after mining in the working face and the change value of the roof and floor cracks in the coal seam during the coal face mining, the variation law of the stope and surrounding rock of the mine is studied qualitatively and quantitatively. Scientific and reliable analytical data are obtained. Combined with the regulation of coal and gas outburst, the corresponding prevention measures are put forward. Through research and analysis, the parameters and data of gas extraction are determined, which can be used as reference materials for gas prevention and control and reasonable mining in the future. And take effective regional outburst prevention measures and local anti-outburst measures.
【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TD713.3

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