發(fā)布時間：2018-06-16 10:07

  本文選題：濟(jì)南泉域 + 巖溶裂隙水　； 參考：《合肥工業(yè)大學(xué)》2017年碩士論文

【摘要】：濟(jì)南名泉諸多,具有數(shù)千年的歷史文化,其獨(dú)特的自然景觀與人文情懷著稱于世。濟(jì)南泉域地下水資源在促進(jìn)城市經(jīng)濟(jì)發(fā)展、保持城市景觀特色以及保障人民和諧生活中扮演著相當(dāng)重要的角色。但由于城市經(jīng)濟(jì)的發(fā)展、城市化建設(shè)加快、城區(qū)規(guī)模擴(kuò)展以及人口數(shù)量的不斷龐大,導(dǎo)致地下水資源短缺與人類社會生存發(fā)展對水資源高需求的矛盾日益突出。因此,開展?jié)先虻叵滤當(dāng)?shù)值模擬研究對于保障濟(jì)南泉域和地下水資源可持續(xù)開發(fā)利用和水資源優(yōu)化配置具有重要的參考價值。本論文基于國內(nèi)外相關(guān)研究以及濟(jì)南自然地理、社會經(jīng)濟(jì)、水文地質(zhì)條件以及水資源利用狀況等,通過對濟(jì)南泉域原始資料的梳理,確定了研究區(qū)模擬范圍,并依照研究區(qū)真實(shí)情況,確定了源匯項的選擇,建立了濟(jì)南泉域水文地質(zhì)概念模型。為了對其進(jìn)行數(shù)值求解,根據(jù)實(shí)測水文地質(zhì)資料、氣象條件、水資源利用狀況以及觀測井水位等數(shù)據(jù),通過將進(jìn)化算法與MODFLOW程序耦合對含水層主要參數(shù)進(jìn)行反求,以2012年10月1日至2013年9月30日作為模型的模擬識別期,2013年10月1日至2014年9月30日作為模型的驗(yàn)證期確定了所建模型的可靠性,并對進(jìn)化算法在含水層參數(shù)反求實(shí)際應(yīng)用中的結(jié)果做了相應(yīng)的討論。得出主要結(jié)論與成果如下:(1)根據(jù)資料分析和現(xiàn)場調(diào)研,提取研究區(qū)268個有效鉆孔,建立了濟(jì)南泉域水文地質(zhì)概念模型和數(shù)學(xué)模型;(2)將模型參數(shù)求解的快速和諧搜索算法首次應(yīng)用至濟(jì)南泉域,克服了以往人工手動調(diào)參的劣勢以及傳統(tǒng)進(jìn)化算法在全局尋優(yōu)上的能力不足問題;(3)將進(jìn)化算法與MODFLOW程序耦合,實(shí)現(xiàn)了對地下水模型進(jìn)行數(shù)值求解,解決了觀測資料相對不完備情況下的模型求參難題,在滿足模型精度的前提下,大大節(jié)約了數(shù)值求解所需時間;(4)模擬計算值與觀測值偏差小于0.5m的結(jié)點(diǎn)約占45%,在0.5m~1m間的結(jié)點(diǎn)約占30%,水位模擬計算值在時間序列走勢上與觀測水位走勢基本一致,進(jìn)一步驗(yàn)證了優(yōu)化算法在水文地質(zhì)領(lǐng)域的應(yīng)用前景,可為濟(jì)南泉域優(yōu)化管理模型的建立提供有力支撐。
[Abstract]:Jinan has thousands of years of history and culture, its unique natural landscape and humanistic feelings are famous in the world. Groundwater resources in Jinan spring region play a very important role in promoting the development of urban economy, maintaining the characteristics of urban landscape and ensuring the people's harmonious life. However, due to the development of urban economy, the acceleration of urbanization construction, the expansion of urban scale and the continuous huge population, the contradiction between the shortage of groundwater resources and the high demand for water resources for the survival and development of human society has become increasingly prominent. Therefore, the study of groundwater numerical simulation in Jinan spring region has important reference value for ensuring the sustainable development and utilization of groundwater resources and the optimal allocation of water resources in Jinan spring region. Based on the related researches at home and abroad as well as the physical geography, social economy, hydrogeological conditions and the utilization of water resources in Jinan, this paper determines the simulation scope of the study area by combing the original data of Jinan spring region. According to the real situation of the study area, the selection of source and sink term is determined, and the hydrogeological conceptual model of Jinan spring region is established. In order to solve the problem numerically, based on the measured hydrogeological data, meteorological conditions, water resource utilization and water level of observation wells, the main parameters of aquifer are inversely obtained by coupling the evolutionary algorithm with MODFLOW program. Using 1 October 2012 to 30 September 2013 as the model simulation identification period and 1 October 2013 to 30 September 2014 as the validation period for the model to determine the reliability of the model, The results of evolutionary algorithm in the practical application of aquifer parameter inversion are also discussed. The main conclusions and results are as follows: 1) according to the data analysis and field investigation, 268 effective boreholes were extracted from the research area. In this paper, the hydrogeological conceptual model and mathematical model of Jinan spring domain are established. The fast and harmonious search algorithm for solving model parameters is applied to Jinan spring domain for the first time. It overcomes the disadvantage of manual parameter adjustment in the past and the problem of insufficient ability of traditional evolutionary algorithm in global optimization. The evolutionary algorithm is coupled with MODFLOW program and the groundwater model is solved numerically. The model parameter problem is solved under the condition of incomplete observation data, and the model accuracy is satisfied. The time required for numerical solution is greatly saved.) the number of nodes in which the calculated value is less than 0.5 m and the node between the 0.5m~1m and the observed value is about 45m, and the calculated value of water level simulation is basically consistent with the observed water level trend in the trend of time series. The application prospect of the optimization algorithm in hydrogeological field is further verified, and it can provide a strong support for the establishment of optimal management model in Jinan spring region.
【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】：P641.6

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