酒泉盆地地下水系统数值模拟研究

《酒泉盆地地下水系统数值模拟研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、兰州大学硕士学位论文酒泉盆地地下水系统数值模拟研究姓名：王刚申请学位级别：硕士专业：水利工程·水文学及水资源指导教师：魏国孝20070501研究表明酒泉盆地在现状水平年(2003年)地水资源总补给量为7．0562×108me，排泄量8．2146X1矿m3。补给量按灌区计算，其中讨南讨北灌区为2．7464X108m3、清水灌区O．5961XlOSm3、临水灌区O．8253X108m3、洪水灌区1,2626X108me、红山灌区0．3445X108m3、观山O．0542X108m3、丰乐灌区O．5938×108m3、马营灌区O．6334×108m3。(三)

2、利用建立的模型，预测了酒泉盆地地下水系统资源在P=50％、75％、95％不同地表径流保证率条件下的地下水资源补给、排泄量及潜水流场。预测表明在P=50％保证率下，总补给量为7．7346×10'm3，排泄量为8．7208X10Sm3，地下水系统总均衡量为--0．9862×10、p；P=75％条件下，总补给量为7．1663XlO’n3，排泄量为8．3789X108m3，地下水系统总均衡量为一1．2126×10Sma；P=95％条件下，总补给量为6．3610XlO"m3，排泄量为7．8477X108m3，地下水系统总均衡量为一1．4867X10、n3。关键词

3、：黑河流域；酒泉盆地；GIS：FEFLOW：地下水资源；数值模拟IIGroundwaterSystemNumericalSimulationofJiuquanBasinAbstractTheJiuquanbasinislocatedinthemiddleofHeiheRiverintheGausuProvince．whichisoneofthetypicallarge--sealedinlandfiverbasinsinthenorthwestaridinlandriver．ThebasinisbesiegedbythefaultofQilianMou

4、ntaininthesouth、theapophysisofNorthMountaininthenorthandtheWestandEastisseparatelythefaultofJiayuguan、thegroundwaterwatershedofYumumountain．Meanwhile，theJiiuquanBasinistheimportantindustry,theagriculturalproductionbaseandtheareaofsuppliedwater·whichisapproximately250．0kminlongan

5、d10．O一15．Okminwidth．SincetheQuaternary，Jiuquanbasinhasviolentlysubsidedanddepositedmassiveloosesediments．Underthecontroloffluviationandgeology，thesedimentcomponentsgraduallychangefromgritstOclayandsandsfromsouth--westtOnorth—east。whilethethicknessbecomesthinlittlebylittle．Thesea

6、lluviumsandfluvialsedimentsconsistoftheaquiferchangedfromsin#e--aquifertOmultiply--aquifers，andprovideawellspaceofgroundwatermovementwithrecharge，flowanddischargeconditions．Inrecentyears，massivehydraulicengineeringhavebeenconstructedinordertomeettheneedsofdevelopmentofindustryan

7、dagricultureinthebasin，andthepopulationisgettinglargerandlarger,whichcausedthisgroundwaterresourcestobeataseriouslyexcessiveusages姆．Atthesametime，themassiveactivityofconstructionischangingtherelationofrecharge，runoff,dischargeandhydrologiccycleinthegroundwatersystemitselfandaffe

8、ctstheweather,climateandthehydrauliccyclingonar