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金鳳煤礦首采工作面防治水技術(shù)研究

發(fā)布時(shí)間:2018-02-27 11:26

  本文關(guān)鍵詞: 水文地質(zhì) 涌(突)水 預(yù)測(cè)預(yù)報(bào) 電法 防治水措施 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】:礦井水文地質(zhì)類型及其復(fù)雜程度決定了礦井開采受水害威脅程度,也決定了工作面回采過程中防治水工作的難易程度。頂板砂巖裂隙、孔隙充水含水層的發(fā)育,隨工作面回采垮落易引發(fā)頂板涌(突)水,由于充水含水層富水性在空間上存在不均一性,同時(shí)由于在工作面及其附近發(fā)育不同性質(zhì)的斷裂,增加了突水的可能性,導(dǎo)致了頂板涌(突)水防治工作的復(fù)雜性。因此,科學(xué)合理地評(píng)價(jià)煤層安全回采的頂板涌(突)水條件和進(jìn)行回采工作面頂板水量動(dòng)態(tài)預(yù)測(cè)預(yù)報(bào)以及制定切實(shí)可行的防治水對(duì)策措施,不論是對(duì)現(xiàn)場(chǎng)安全生產(chǎn),還是對(duì)頂板水害防治的拓展都具有十分重要的意義。 本論文以金鳳煤礦首采工作面為背景,對(duì)已有水文地質(zhì)資料進(jìn)行工作面充水條件分析,利用高密度電阻法和激發(fā)極化發(fā)法等物探手段,圈出含(導(dǎo))水異常帶,根據(jù)地層物性劃分出相對(duì)富水區(qū)和相對(duì)貧水區(qū)。同時(shí),通過工作面已有水文地質(zhì)資料、以及鉆探、構(gòu)造和巖性等多元地學(xué)信息,,利用“三圖-雙預(yù)測(cè)”理論方法,得出工作面充水條件綜合分區(qū)成果圖。將上述兩種成果對(duì)比分析,得到工作面內(nèi)較可靠的涌(突)水危險(xiǎn)區(qū)域。最后根據(jù)工作面涌(突)水危險(xiǎn)區(qū)域分布狀況制定具體的防治水技術(shù)措施,保證首采工作面安全回采。 本研究應(yīng)用于金鳳煤礦首采工作面水文地質(zhì)條件分析與防治水工作中,取得了首次成功,為同類條件下礦井水文地質(zhì)條件分析與回采工作面頂板涌(突)水防治研究提供了可靠的依據(jù)和寶貴經(jīng)驗(yàn),帶來了良好的經(jīng)濟(jì)和社會(huì)效益,具有一定的推廣借鑒意義。
[Abstract]:The type and complexity of mine hydrogeology determine the degree of mine mining threatened by water, and also determine the degree of difficulty in preventing and controlling water in the process of mining. The development of roof sandstone fissure and pore water-filled aquifer. With the mining collapse of the working face, roof gushing (outburst) is easy to be induced. Because of the heterogeneity of water enrichment in the water-filled aquifer and the development of different fracture characteristics in and around the working face, the possibility of water inrush is increased. Which leads to the complexity of roof water control. Scientific and reasonable evaluation of roof surge (outburst) water condition of coal seam safe mining, dynamic prediction and prediction of roof water quantity in mining face, and formulation of feasible measures for water prevention and control, no matter for safe production on the spot, It is also of great significance to the development of roof water hazard prevention. This paper takes the first mining face of Jinfeng coal mine as the background, analyzes the water filling condition of the existing hydrogeological data, and uses geophysical exploration methods such as high density resistance method and induced polarization method to circle the abnormal zone containing (conducting) water. According to the physical properties of the strata, it can be divided into relatively water-rich areas and relatively water-poor areas. At the same time, through the hydrogeological data, drilling, structure and lithology information, the theory method of "three maps and two prediction" is used. The comprehensive zoning result map of the working face water filling condition is obtained. The above two results are compared and analyzed. Finally, according to the distribution of the dangerous area of water burst (inrush) in the face, the technical measures of preventing and controlling water are made to ensure the safe mining of the first mining face. This study was applied to the analysis of hydrogeological conditions and the prevention and control of water in the first mining face of Jinfeng Coal Mine, with the first success. It provides a reliable basis and valuable experience for the analysis of mine hydrogeological conditions and the prevention and control of roof gushing (outburst) water in mining face under the same conditions, and brings good economic and social benefits, and has certain popularization and reference significance.
【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)】:TD745

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