發(fā)布時間：2018-04-10 15:01

  本文選題：涌水量 + 伊敏組��； 參考：《河北工程大學(xué)》2015年碩士論文

【摘要】：研究區(qū)位于伊敏河?xùn)|區(qū)探礦權(quán)范圍以內(nèi)的北部,井田面積約116.5km2。本文以水文地質(zhì)學(xué)、地下水動力學(xué)理論為指導(dǎo),結(jié)合內(nèi)蒙古海拉爾區(qū)域地質(zhì)資料,通過抽水試驗、水質(zhì)分析與沉積分析等手段,對伊敏河?xùn)|煤田含水層與隔水層劃分及其空間展布格局與水文地質(zhì)條件及富水性特征進行研究,并對礦井涌水量進行了預(yù)測。本文將研究區(qū)域劃分為兩個主要的含水層組:第四系孔隙含水層和白堊系伊敏組煤系地層含水層,其中白堊系伊敏組煤系地層含水層又進一步劃分為15煤層上部含水層、15煤層間含水層、16煤層上部含水層、16煤層間含水層。各含水層富水性大部分較強,上部隔水層不均勻,隔水效果較差。其中白堊系伊敏組煤系地層含水層中的15煤層含水層為本次研究的重點含水層,其上覆的14煤層隔水層和第四系隔水層分布不均勻,存在水頭差,有天窗和邊緣補給;其下伏的15煤層隔水層,分布均勻,富水性弱,為良好的隔水層。論文在水文地質(zhì)條件分析成果的基礎(chǔ)上,概化出敏東二礦的水文地質(zhì)概念模型,建立出與水文地質(zhì)概念模型相適應(yīng)的數(shù)學(xué)模型,最后用Visual Modflow進行數(shù)值模擬,計算出第一水平礦井正常涌水量為1943 m3/h,最大涌水量為2137 m3/h;先期開采地段正常涌水量為1757m3/h,最大涌水量為1933 m3/h。根據(jù)數(shù)值模擬結(jié)果對礦井開采疏干排水方案做出了建議。
[Abstract]:The study area is located in the northern part of Yimin Hedong District, with an area of 116.5 km ~ 2.Guided by the theory of hydrogeology and groundwater dynamics, combined with the regional geological data of Hailar, Inner Mongolia, the paper adopts pumping test, water quality analysis and sediment analysis, etc.This paper studies the division of aquifer and aquifer, spatial distribution pattern, hydrogeological conditions and water-rich characteristics in the east coal field of Yimin River, and forecasts the mine water discharge.In this paper, the study area is divided into two main aquifer groups: Quaternary pore aquifer and Cretaceous Yimin coal series aquifer.The coal measure aquifer of the Cretaceous Yimin formation is further divided into 15 coal seam upper aquifer, 15 coal seam aquifer, 16 coal seam upper aquifer and 16 coal seam aquifer.Most of the aquifers are rich in water, the upper layer is not uniform, and the effect of water insulation is poor.The 15 coal bed aquifer in the coal measure aquifer of the Cretaceous Yimin formation is the key aquifer in this study. The 14 coal seams and the Quaternary water-isolated strata are unevenly distributed, and there are water head difference, skylight and marginal recharge.Its underlying 15 coal seams have uniform distribution and low water content, which is a good waterproof layer.Based on the results of hydrogeological condition analysis, this paper generalizes the conceptual model of hydrogeology in Mindong No.2 Mine, and establishes a mathematical model suitable to the conceptual model of Hydrogeology. Finally, the numerical simulation is carried out with Visual Modflow.It is calculated that the normal discharge of the first level mine is 1943 m3 / h, the maximum discharge is 2137 m3 / h, and the normal inflow of the first mining area is 1 757 m3 / h, the maximum discharge is 1933 m3 / h.According to the results of numerical simulation, the drainage scheme of mine mining is suggested.
【學(xué)位授予單位】：河北工程大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P641.41

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本文編號：1731697