發(fā)布時(shí)間：2018-03-03 10:28

  本文選題：額濟(jì)納旗　切入點(diǎn)：地下水模擬　出處：《清華大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：地下水已經(jīng)成為黑河流域下游的內(nèi)蒙古自治區(qū)阿拉善盟額濟(jì)納旗經(jīng)濟(jì)社會(huì)發(fā)展的限制資源。高效、安全的開發(fā)和利用地下水資源關(guān)系到區(qū)域的安全、穩(wěn)定和可持續(xù)發(fā)展。區(qū)域地下水動(dòng)態(tài)評(píng)價(jià)是合理開發(fā)利用地下水的基礎(chǔ)。 對(duì)黑河流域下游的地下水的整體狀況，區(qū)域地質(zhì)年代以及地質(zhì)構(gòu)造的成因，額濟(jì)納旗地區(qū)地下水的儲(chǔ)水量多年變化情況，黑河流域下游的地下水與地表徑流的轉(zhuǎn)化情況，黑河流域下游額濟(jì)納旗地區(qū)地下水的變化情況對(duì)生態(tài)環(huán)境的影響等方面的內(nèi)容進(jìn)行了研讀，最終選定了本文的研究方法和技術(shù)路線。 本論文采用野外工程作業(yè)、地質(zhì)勘查和室內(nèi)收集整理資料的方法，建立了區(qū)域水文地質(zhì)概念模型。對(duì)區(qū)域的地質(zhì)構(gòu)造、含水層結(jié)構(gòu)、含水層水力特征和區(qū)域邊界的水量交換做了定性分析。 在對(duì)水文地質(zhì)模型分析研究的基礎(chǔ)上，，利用Visual MODFLOW建立了區(qū)域地下水流數(shù)值模型。在完成相關(guān)資料和數(shù)據(jù)的分析和甄別的基礎(chǔ)上，率定了區(qū)域的地下水補(bǔ)給和排泄量，對(duì)區(qū)域按照精度進(jìn)行了網(wǎng)格劃分，使得分散的數(shù)據(jù)能夠更好的反映整個(gè)區(qū)域的地下水狀況，經(jīng)過識(shí)別和驗(yàn)證后，得到能夠反映區(qū)域地下水動(dòng)態(tài)的數(shù)學(xué)模型。 研究區(qū)域地下水實(shí)測(cè)資料的動(dòng)態(tài)變化過程。利用建立的地下水流數(shù)值模型，對(duì)區(qū)域的地下水加載不同的開采量，得到地下水動(dòng)態(tài)狀況。結(jié)合在額濟(jì)納旗的供水井工程的驗(yàn)收資料，判斷供水井工程的使用情況。 建議樹立科學(xué)發(fā)展觀的思想，要有前瞻性的眼光和科學(xué)的視角，將地下水動(dòng)態(tài)評(píng)價(jià)的成果與黑河下游額濟(jì)納旗區(qū)域的經(jīng)濟(jì)社會(huì)發(fā)展和水資源開發(fā)利用、生態(tài)保護(hù)等緊密結(jié)合起來，科學(xué)的平衡額濟(jì)納旗區(qū)域的地表水和地下水的開發(fā)、利用之間的關(guān)系，使本身非常珍貴和有限的水資源得到合理的開發(fā)和利用。
[Abstract]:Groundwater has become a restricted resource for the economic and social development of the Ejina Banner of the Inner Mongolia Autonomous region Alashan League in the lower reaches of the Heihe River Basin. The development and utilization of groundwater resources in an efficient and safe manner are related to the security of the region. Regional groundwater dynamic evaluation is the basis of reasonable development and utilization of groundwater. The overall situation of groundwater in the lower reaches of Heihe River Basin, the formation of regional geological age and geological structure, the variation of groundwater storage in Ejinaqi area over the years, the transformation of groundwater and surface runoff in the lower reaches of Heihe River Basin, and the transformation of groundwater and surface runoff in the lower reaches of Heihe River Basin are discussed. The effects of groundwater changes on ecological environment in Ejina Banner area of the lower reaches of Heihe River Basin are studied and the research method and technical route of this paper are finally selected. In this paper, the conceptual model of regional hydrogeology is established by using the methods of field engineering, geological exploration and indoor collection and collation of data. The water exchange between aquifer hydraulic characteristics and regional boundary is analyzed qualitatively. Based on the analysis and study of hydrogeological model, the regional groundwater flow numerical model is established by using Visual MODFLOW. Based on the analysis and discrimination of relevant data and data, the groundwater recharge and discharge are determined. The area is meshed according to the precision, so that the scattered data can better reflect the groundwater situation of the whole area. After identification and verification, a mathematical model which can reflect the regional groundwater dynamics is obtained. The dynamic change process of regional groundwater measured data is studied. Using the established numerical model of groundwater flow, different extraction rates of regional groundwater are loaded. According to the acceptance data of water supply well project in Ejina Banner, the use of supply well project is judged. It is suggested that the idea of scientific development should be set up from a forward-looking and scientific perspective, and the results of groundwater dynamic evaluation should be combined with the economic and social development and water resources development and utilization in the Ejina Banner area in the lower reaches of Heihe River. Ecological protection and other closely combined, scientific balance between the development of surface water and groundwater in Ejina Banner area, the use of the relationship between the very precious and limited water resources have been reasonable development and utilization.
【學(xué)位授予單位】：清華大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：P641.2

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本文編號(hào)：1560647