本文選題：孔隙承壓水　切入點(diǎn)：孔隙潛水　出處：《合肥工業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：太和縣經(jīng)濟(jì)開發(fā)區(qū)位于安徽省淮北平原中西部,依潁河而建,受潁河水質(zhì)約束,開發(fā)區(qū)生活和工業(yè)用水現(xiàn)狀基本依靠開采埋深50~300 m的松散孔隙水,松散孔隙水、尤其是孔隙承壓水開采強(qiáng)度大,已誘發(fā)一些不良影響。隨著發(fā)展,需水量逐漸增大;因此,根據(jù)區(qū)域水質(zhì)條件改善進(jìn)程、重大水利工程--引江濟(jì)淮的實(shí)施,對地下水進(jìn)行科學(xué)、合理地管理,是十分必要的。根據(jù)開發(fā)區(qū)總體規(guī)劃,2020年規(guī)劃用地面積為10.21 km2,需水總量8.0萬m3/d。區(qū)內(nèi)用水組成,可分為三大類:生活用水、醫(yī)藥及食品生產(chǎn)用水等高水質(zhì)用水,需水量為1.77萬m3/d;一般工業(yè)用水3.81萬m3/d;對水質(zhì)要求比較低如電廠冷卻用水等工業(yè)用水2.42萬m3/d。根據(jù)用戶水質(zhì)要求、依據(jù)水資源的水質(zhì)條件,采用分源、分質(zhì)供水:高水質(zhì)用水,由水質(zhì)優(yōu)良且水質(zhì)動態(tài)穩(wěn)定的孔隙承壓水供給;一般工業(yè)用水,主要由近年來水質(zhì)有所改善的潁河供給,孔隙潛水補(bǔ)充;對水質(zhì)要求比較低的,由開發(fā)區(qū)污水處理廠生產(chǎn)的中水供給。在分源、分質(zhì)供水原則下,以最大程度滿足需水為目標(biāo)、以不形成地下水超采為約束,對現(xiàn)階段地下水開發(fā)利用方案進(jìn)行研究;引江濟(jì)淮工程實(shí)施,將對地區(qū)水資源供需形式產(chǎn)生重大影響,根據(jù)引江濟(jì)淮分水方案,對未來地下水開發(fā)利用方案進(jìn)行比選調(diào)整。地下水開發(fā)利用方案比選,利用Visual MODFLOW軟件,建立地下水流數(shù)值模擬模型;以現(xiàn)有承壓開采井為基礎(chǔ),結(jié)合可行的潛水開采布局,對各開采井的開采量及開采過程、各層位開采總量進(jìn)行合理設(shè)置。設(shè)置四種不同開采方案,經(jīng)比選模型模擬結(jié)果,確定合理開采方案:引江濟(jì)淮實(shí)施前,孔隙承壓水開采量為10397 m3/d、孔隙潛水開采量為14882 m3/d;引江濟(jì)淮實(shí)施后,分配開發(fā)區(qū)水量為16782 m3/d,孔隙承壓水開采量為2310 m3/d、孔隙潛水開采量為6187 m3/d。
[Abstract]:Taihe County Economic Development Zone is located in the central and western part of Huaibei Plain in Anhui Province. It is built according to the Yinghe River and is restricted by the water quality of Yinghe River. The present situation of living and industrial water in the development zone basically depends on the exploitation of loose pore water with a depth of 50 ~ 300 meters and loose pore water. Especially, the exploitation intensity of pore confined water is high, which has induced some bad effects. With the development, the water demand increases gradually. Therefore, according to the improvement process of regional water quality conditions, the implementation of major water conservancy project-diversion of water resources from the Yangtze River to Jihuai River, the groundwater is scientifically carried out. According to the overall plan of the development zone, in 2020, the planned land area was 10.21 km2, and the total water requirement was 80,000 m3 / d.The water used in the area could be divided into three categories: domestic water, pharmaceutical and food production water, etc. The water demand is 17,700 m3 / d; the general industrial water use is 38,100 m3 / d; the water quality requirements are relatively low, such as the cooling water for power plants, and so on. According to the water quality requirements of the users, according to the water quality conditions of water resources, the water supply is divided into sources and quality: high water quality. It is supplied by pore confined water with excellent water quality and stable water quality; general industrial water is supplied mainly by Yinghe River, which has improved water quality in recent years, and pore phreatic water is replenished; the water quality requirements are relatively low, The reclaimed water supply produced by the sewage treatment plant of the development zone. Under the principle of dividing the source and the quality of the water supply, taking the maximum degree of water demand as the goal and not forming the groundwater over-exploitation as the constraint, the paper studies the development and utilization scheme of the groundwater at the present stage. The implementation of the Jiangjiji-Huai project will have a great impact on the supply and demand of water resources in the region. According to the scheme of diverting water from the Yangtze River to the Jihuai River, the scheme of groundwater exploitation and utilization in the future will be compared and adjusted. The numerical simulation model of groundwater flow is established, based on the existing confined production wells and combined with the feasible layout of submersible exploitation, the exploitation amount and the total production amount of each layer of each production well are reasonably set up, and four kinds of different mining schemes are set up. According to the simulation results of comparison and selection model, the reasonable mining scheme is determined: before the implementation of the diversion of Jiangji-Huai River and Huaihe River, the pore pressure water extraction is 10397 m3 / d, and the pore phreatic exploitation is 14882 m3 / d; after the implementation of the introduction of Jiangji-Huai River and Huaihe River, The amount of water allocated to the development zone is 16782 m3 / d, the pore pressure water extraction is 2310 m3 / d, and the pore phreatic exploitation is 6187 m3 / d.
【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：P641.8

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