本文關(guān)鍵詞： 地下水?dāng)?shù)值模擬 疏降水方案 礦坑涌水量　出處：《石家莊經(jīng)濟(jì)學(xué)院》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：本礦位于寧夏回族自治區(qū)中東部地區(qū),面積約85km2。侏羅系直羅組下段砂巖含水層(Ⅱ)及2~6煤間砂巖含水層(Ⅲ)是對(duì)本井田影響較大的含水層,本論文主要對(duì)2號(hào)煤頂板含水層水位進(jìn)行地下水?dāng)?shù)值模擬。本論文通過(guò)收集、整理礦區(qū)勘察工作的鉆孔數(shù)據(jù)和水文地質(zhì)資料,分析礦區(qū)地層特征,讓我們對(duì)該礦區(qū)地層和含水層有個(gè)整體的認(rèn)識(shí)。建立三維水文地質(zhì)結(jié)構(gòu)模型,清晰明了地觀察模型內(nèi)部的地層形態(tài)。對(duì)礦區(qū)水文地質(zhì)條件分析后,建立地下水?dāng)?shù)值模型,用“三維流數(shù)值法”對(duì)礦區(qū)首采區(qū)2號(hào)煤頂板直羅組下段砂巖含水層進(jìn)行礦井涌水量預(yù)測(cè),最后提出較優(yōu)的疏降水方案。本論文共包括五章,第一章主要介紹了本論文的選題意義,介紹了目前地下水?dāng)?shù)值模擬的國(guó)內(nèi)外發(fā)展情況,總結(jié)了本文的主要內(nèi)容與技術(shù)路線;第二章介紹了研究區(qū)自然地理概況,包括礦區(qū)的地理位置、地形地貌、氣象與水文和礦井概況;第三章主要包括井田地質(zhì)和井田水文地質(zhì),包括地層、構(gòu)造、含水層及其特征、隔水層、地下水的補(bǔ)給、徑流、排泄條件等;第四、五章是本論文的核心,通過(guò)對(duì)礦區(qū)進(jìn)行水文地質(zhì)條件分析,已獲得的資料與數(shù)據(jù),運(yùn)用Visual MODFLOW軟件建立礦坑首采區(qū)的地下水?dāng)?shù)值模擬模型,反復(fù)識(shí)別與驗(yàn)證模型,然后對(duì)采區(qū)礦坑涌水量進(jìn)行預(yù)測(cè),提出疏降水方案�！叭S流數(shù)值法”在自然狀態(tài)下預(yù)測(cè)煤層頂板正常涌水量為1700 m3/h,最大涌水量為2482 m3/h;在人工改造狀態(tài)下預(yù)測(cè)煤層頂板涌水量為1870 m3/h,最大涌水量為2730.2 m3/h。
[Abstract]:The mine is located in the middle part of the Ningxia Hui Autonomous Region, an area of about 85km2. under the Jurassic Zhiluo Formation sandstone aquifer (II) and 2~6 coal between the sandstone aquifer (III) is the impact on the Honi Da aquifer is large, this paper focuses on No. 2 coal roof aquifer of groundwater numerical simulation. This paper through the collection, collation the investigation of mine drilling data and hydrogeological data, analysis of strata characteristics, let us on the strata and the aquifer have a whole understanding. The establishment of three-dimensional hydrogeological structure model, a clear observation of internal models of the strata form. Analysis of hydrogeological condition, a numerical model of groundwater, with "three numerical method of mining the first mining area in No. 2 coal roof of the lower member of Zhiluo Formation sandstone aquifer of mine inflow prediction, and finally puts forward the sparse precipitation scheme is the best. This paper includes five Chapter, the first chapter mainly introduces the significance of the topic, introduces the development of the groundwater numerical simulation at home and abroad, summarizes the main content of this paper and the technical route; the second chapter introduces the research area of natural geography, including the mining area of the geographical location, topography, meteorological and hydrological survey and mine; the third chapter including mine geology and Ida Min geology, including the formation, structure, and characteristics of the aquifer, aquitard, groundwater recharge, runoff and discharge conditions; the fourth, fifth chapter is the core of this thesis, the hydrogeological conditions of mining area analysis, information and data have been obtained, using the groundwater numerical simulation model of Visual MODFLOW software the establishment of the first mining area in the mine, repeated model identification and verification, and to predict the water inflow of mine mining area, proposed sparse precipitation scheme. "Three dimensional numerical method in natural state It is predicted that the normal water inflow of coal seam roof is 1700 m3/h, and the maximum water inrush volume is 2482 m3/h. In artificial transformation, the prediction of coal seam roof water inflow is 1870 m3/h, and the maximum water inflow is 2730.2 m3/h..

【學(xué)位授予單位】：石家莊經(jīng)濟(jì)學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P641.461

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