發(fā)布時(shí)間：2018-05-28 18:44

  本文選題：大水礦山 + 滲流規(guī)律　； 參考：《中南大學(xué)》2013年碩士論文

【摘要】：實(shí)現(xiàn)復(fù)雜水文地質(zhì)條件下的安全采礦是目前大水礦山普遍面臨的最大技術(shù)難題,為確保地下開采安全,必須科學(xué)深入地展開礦區(qū)水文地質(zhì)規(guī)律及相關(guān)防治水工程技術(shù)研究,從而實(shí)現(xiàn)礦區(qū)地下水環(huán)境再造,有效控制地質(zhì)災(zāi)害、遏止區(qū)域地下水位下降,維持地下水系統(tǒng)動(dòng)態(tài)平衡。本論文以安徽省新橋礦露天轉(zhuǎn)地下開采防治水工程項(xiàng)目為研究對(duì)象,綜合運(yùn)用實(shí)地監(jiān)測(cè)、實(shí)體建模和數(shù)值模擬等手段,對(duì)再造礦區(qū)露天轉(zhuǎn)地下前后滲流場(chǎng)分布規(guī)律及防水工程結(jié)構(gòu)的適應(yīng)性、可靠性進(jìn)行研究,主要完成了以下工作： (1)系統(tǒng)開展區(qū)域工程水文地質(zhì)調(diào)查,獲得研究區(qū)域較為詳細(xì)的水文地質(zhì)數(shù)據(jù)�；阢@孔數(shù)據(jù)和GMS軟件Solids等模塊構(gòu)建礦區(qū)水文地質(zhì)結(jié)構(gòu)模型,直觀再現(xiàn)了研究區(qū)的真實(shí)地質(zhì)環(huán)境,為下一步再造礦區(qū)水文地質(zhì)概念模型的精細(xì)分區(qū)提供依據(jù)。 (2)運(yùn)用解析法完成了露天坑降雨徑流量及露天轉(zhuǎn)地下開采井下涌水量的計(jì)算分析。分析結(jié)果表明：最大降雨徑流條件下露天坑降雨量約為地下涌水量的26.8倍,防止地表水入滲和縮小入滲范圍是再造礦區(qū)防治水的關(guān)鍵環(huán)節(jié)。 (3)基十等效連續(xù)介質(zhì)數(shù)學(xué)模型,采用GMS軟件建立研究區(qū)域的水文地質(zhì)概念模型與數(shù)值模型完成了研究區(qū)域露天轉(zhuǎn)地下開采前后的地下水滲流場(chǎng)分析,深入分析了開采擾動(dòng)、地表降雨入滲等條件下研究區(qū)域的滲流分布規(guī)律,并對(duì)再造防水工程在露天轉(zhuǎn)地下開采中的適應(yīng)性做出了分析評(píng)價(jià),再造防水工程在露天轉(zhuǎn)地下開采一期工程中的截流作用較為明顯。 (4)基于粗糙集與支持向量機(jī)理論建立再造防水工程可靠性評(píng)價(jià)模型,選取帷幕厚度、性狀、滲透系數(shù)、巖體孔隙率、水力梯度、地下水水位降深、結(jié)石體強(qiáng)度、注漿深度等指標(biāo)為評(píng)價(jià)因子,通過粗糙集知識(shí)約簡(jiǎn)提取核心判別指標(biāo),并利用支持向量機(jī)對(duì)樣本數(shù)據(jù)和預(yù)測(cè)數(shù)據(jù)進(jìn)行計(jì)算,得出再造防水工程的可靠等級(jí)。
[Abstract]:To realize the safety mining under complicated hydrogeological conditions is the biggest technical problem that the big water mines generally face at present. In order to ensure the safety of underground mining, it is necessary to carry out the research on the hydrogeological law of mining area and the related water control engineering technology scientifically and deeply. Thus the groundwater environment in mining area can be rebuilt, geological disasters can be effectively controlled, regional groundwater level will be restrained, and the groundwater system will be maintained in dynamic balance. This paper takes the project of water prevention and control from open-pit to underground mining in Xinqiao Mine of Anhui Province as the research object, and synthetically uses the means of field monitoring, solid modeling and numerical simulation, etc. The distribution law of seepage field and the adaptability and reliability of waterproof engineering structure before and after conversion from open air to underground in reclaimed mining area are studied. The main work is as follows: 1) to carry out the regional hydrogeological survey systematically and obtain the detailed hydrogeological data in the study area. Based on borehole data and GMS software Solids, the hydrogeological structure model of mining area is constructed, which directly reappears the real geological environment of the study area, and provides the basis for reconstructing the fine zoning of the hydrogeological conceptual model of mining area in the next step. 2) the calculation and analysis of the rainfall runoff in the open pit and the downhole inflow from the open pit to underground mining have been completed by using the analytical method. The results show that the rainfall in open pit is about 26.8 times of underground discharge under the condition of maximum rainfall runoff. Preventing surface water infiltration and reducing infiltration range are the key links of water control in reclaimed mining area. Based on the mathematical model of equivalent continuum medium, the hydrogeological conceptual model and numerical model of the study area are established by using GMS software. The seepage field of groundwater before and after the open pit to underground mining in the study area is analyzed, and the mining disturbance is deeply analyzed. Under the condition of surface rainfall infiltration and other conditions, the seepage distribution law of the area is studied, and the adaptability of the reengineering waterproof project in open-pit to underground mining is analyzed and evaluated. The reengineering waterproofing project has obvious effect on the closure of the first stage of open pit to underground mining. 4) based on rough set and support vector machine theory, the reliability evaluation model of reconstituted waterproof engineering is established. The curtain thickness, characteristics, permeability coefficient, rock mass porosity, hydraulic gradient, groundwater level depth, stone body strength are selected. By rough set knowledge reduction, the core discriminant index is extracted, and the sample data and prediction data are calculated by support vector machine, and the reliability grade of reengineering waterproof engineering is obtained.
【學(xué)位授予單位】：中南大學(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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本文編號(hào)：1947779