發(fā)布時間：2018-03-02 12:44

  本文選題：南水北調(diào)　切入點：人工回灌　出處：《中國地質(zhì)大學(xué)（北京）》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：南水北調(diào)水源進京后，本地水資源結(jié)構(gòu)將發(fā)生很大改變，可將本地盈余的地表水以及南水北調(diào)過程中豐水年及平水年的余水等，人工回灌到地下水庫中進行儲存，以提高北京市供水保證程度。本文研究區(qū)位于北京市東北部，研究范圍為密云、懷柔以及順義區(qū)潮白河向陽閘以北的平原區(qū)。結(jié)合南水北調(diào)來水調(diào)蓄工程，開展地下水專項研究。通過回灌河道現(xiàn)場淋濾試驗、建立包氣帶數(shù)值模型以及含水層數(shù)值模型，對地下水進行分析，科學(xué)評價回灌入滲對地下水環(huán)境響程度及影響范圍。本論文的主要成果包括以下幾點： （1）本次研究在回灌區(qū)典型河道進行現(xiàn)場包氣帶淋濾試驗，通過分析監(jiān)測孔水質(zhì)離子濃度結(jié)果可知：包氣帶中發(fā)生了明顯的陽離子交換吸附作用；土體顆粒表面吸附氨氮或者淋溶過程中土壤中發(fā)生了輕微的硝化反應(yīng)；土壤中的物理淋溶作用明顯。各監(jiān)測孔水質(zhì)中的化學(xué)組分濃度總體上較低，表明潮白河河道包氣帶土樣較為純凈，未受到地表污染源污染。 （2）論文在查明受水區(qū)水文地質(zhì)條件及其它影響因素的基礎(chǔ)上，對潮白河地區(qū)回灌場地的包氣帶作了具體分析，利用數(shù)值模擬軟件HYDRUS建立了潮白河包氣帶水流數(shù)值模型。模擬結(jié)果表明，回灌河道水頭較小時，回灌期290天內(nèi)，在保證12km回灌河道有水的情況下，通過包氣帶底部邊界流出的水量最小值為9.676×109m3。 （3）利用地下水數(shù)值模擬軟件GMS建立地下水流數(shù)值模型，預(yù)測不同調(diào)蓄工況下地下水水位的變化趨勢。根據(jù)密云調(diào)蓄工程已批復(fù)的設(shè)計方案，南水北調(diào)余水于2014年末至2019末回補地下水，回補時段為每年的3月1日至12月15日共計290天，制定了9種補水方案。通過模擬結(jié)果分析，，在方案九條件下地下水水位抬升值最大，水位漲幅最高點達7m左右，北部地區(qū)總體水位標高小于35m，中部、南部地區(qū)總體水位標高仍小于20m。 （4）調(diào)查可知，研究區(qū)北部非正規(guī)垃圾填埋場底板標高均在50m以上，研究區(qū)中部、南部非正規(guī)垃圾填埋場底板標高總體在30m以上。最終得出結(jié)論：回灌導(dǎo)致的地下水水位抬升不會浸泡非正規(guī)垃圾填埋場，即密懷順地下水庫建設(shè)不會影響周邊地下水水質(zhì)。
[Abstract]:After the South-to-North Water diversion Project enters Beijing, the structure of the local water resources will be greatly changed. The local surplus surface water and the surplus water from the abundant and normal water years during the South-to-North Water transfer process can be artificially recharged to the underground reservoirs for storage. In order to improve the guarantee degree of water supply in Beijing, the research area is located in the northeast of Beijing. The research scope is Miyun, Huairou and the plain area north of Chaobaihe Xiangyang sluice in Shunyi District. Through the field leaching test of recharge channel, the numerical model of aeration zone and aquifer are established to analyze the groundwater. Scientific evaluation of the impact of recharge infiltration on groundwater environment and scope. The main achievements of this paper include the following points:. 1) in this study, the leaching test of aeration zone was carried out in typical river channels in the irrigated area. The results of ion concentration analysis showed that: the cation exchange adsorption occurred in the aeration zone; A slight nitrification reaction occurred on the surface of soil particles during the process of adsorption of ammonia nitrogen or leaching, the physical leaching of soil was obvious, and the concentration of chemical components in the water quality of the monitoring holes was generally low. The results show that the soil sample of Chaobai River is relatively pure and not polluted by surface pollution. On the basis of finding out the hydrogeological conditions and other influencing factors in the water-receiving area, the paper makes a concrete analysis on the aeration zone of the recharge site in Chaobaihe area. The numerical simulation software HYDRUS is used to set up the numerical model of water flow in Chaobai River in aerated zone. The simulation results show that the water head of the recharge channel is small, and the recharge period is 290 days, under the condition that there is water in the 12 km reclaimed channel. The minimum outflow of water through the bottom boundary of the aeration zone is 9.676 脳 10 ~ (9) m ~ (3). A numerical model of groundwater flow is established by using the groundwater numerical simulation software GMS to predict the change trend of groundwater level under different storage conditions. According to the approved design scheme of Miyun Regulation and Storage Project, From end of 2014 to 2019, the remaining water of the South-to-North Water diversion Project was used to replenish the groundwater. The period of recharge was 290days from March 1st to December 15th of each year. Nine schemes of water recharge were formulated. The simulation results were analyzed. Under the condition of scheme 9, the groundwater level rise and rise is the biggest, the highest point is about 7 m, the total water level is less than 35 m in the north area, and the total water level elevation in the central and southern regions is still less than 20 m. (4) the investigation shows that the floor height of the informal landfills in the northern part of the study area is above 50 m, and the middle part of the study area is located in the middle of the study area. It is concluded that the groundwater level rise caused by recharge will not soak in the informal landfill site, that is, the construction of Mishuashun underground reservoir will not affect the water quality of the surrounding groundwater.
【學(xué)位授予單位】：中國地質(zhì)大學(xué)（北京）
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TV697.25;P641

【參考文獻】

相關(guān)期刊論文 前10條

1 李五勤;張軍;;北京市再生水利用現(xiàn)狀及發(fā)展思路探討[J];北京水務(wù);2011年03期

2 吳忱,王子惠;南宮地下水庫的古河流沉積與古河型特征[J];地理學(xué)報;1982年03期

3 宋獻方;李發(fā)東;于靜潔;唐常源;楊聰;劉相超;佐倉保夫;近滕昭彥;;基于氫氧同位素與水化學(xué)的潮白河流域地下水水循環(huán)特征[J];地理研究;2007年01期

4 李宇;邵景力;葉超;邢國章;崔瑜;;北京西郊地下水庫模式研究[J];地學(xué)前緣;2010年06期

5 龐忠和;全體系地球化學(xué)模擬與水巖相互作用研究[J];地學(xué)前緣;1996年03期

6 魏永安,侯秀鳳;包頭市修建地下水庫的初步設(shè)想[J];地下水;1998年01期

7 王雪芹,陳吉星,滕劍鋒;從地下水動態(tài)看黃泛平原區(qū)的地下水回灌[J];地下水;2001年01期

8 畢攀;許廣明;李穎智;徐大鵬;;GIS技術(shù)在區(qū)域水資源調(diào)蓄中的應(yīng)用——以滹沱河沖洪積扇地下水調(diào)蓄研究為例[J];地下水;2008年02期

9 張光輝,費宇紅,刑開,劉克巖,王金哲,申建梅,劉廣聯(lián);太行山前平原動水條件下地下調(diào)蓄功能實驗研究——以滹沱河沖洪積平原為例[J];干旱區(qū)資源與環(huán)境;2004年01期

10 杜新強,廖資生,李硯閣;含水層儲存和回采技術(shù)的研究與應(yīng)用[J];中國給水排水;2004年08期

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