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ID:36521199
大小:1.96 MB
页数:77页
时间:2019-05-11
《都江堰灌区渠系优化配水研究》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、四川大学硕士学位论文都江堰灌区渠系优化配水研究姓名:王鹏申请学位级别:硕士专业:水利水电工程指导教师:魏新平20060515ilrreC{:四川大学工学硕:L论文都江堰灌区渠系优化配水研究灌区为例,说明了以有限的气象资料预测参考作物蒸发蒸腾量和水量平衡分析的方法。第四章建立并求解灌区一次灌水水资源优化配置模型,该模型以灌水定额为决策变量,灌区作物增产值最大和供水部门收益最高为优化目标。最后以实例验证模型的有效性。第五章以“定流量,变时间”为基础,建立并求解田间渠系优化配水问题。从组合优化的角度出发,建立有效的模型、设计高效的算法,最后将其应用到都江堰灌区人民渠八支灌区,解决生产实际问题。第
2、六章针对丘陵区灌区内存在蓄水设施的特点,建立起多水源联合调配的动态规划模型,在都江堰灌区东风渠北干一支渠的应用验证了该模型能有效的发挥灌内水库的蓄水能力,从而削减用水高峰时渠首的引水量。结论部分总结了研究成果,并指出存在的不足与需要深入研究的内容。关键词:水资源,优化配水,水量平衡分析,灌区四川大学工学硕士论文都江堰灌区渠系优化配水研究WaterResourcesAllocationOptimizationResearchinDujiangyanIrrigationAreaMajor:HydraulicandhydroelectricengineeringMasterCandidate:W
3、angPengMentor:Prof.WeixinpingABSTRACTWiththedevelopmentofsocialeconomy,thewaterrequirementofhuman—beingisincreasingrapidly,whilethetotalamountofwaterresourcesavailableforusislimited,thisfactdirectlyincurstheproblemofwaterscarcity.Withtheintensificationofthecontradictionbetweenwaterrequirementandwa
4、tersupply,waterresourceshavebecomeoneofthemainfactorsimpedingeconomicdevelopmentofoursociety.Undoubtedly,asallagriculturalcountry,itisofgreatsignificanttoguaranteewatersupplyforagriculturalproduction.Thewaterconsumptionofagriculturalproductionamountsto72%ofthetotalwaterconsumptioninourcountry,anda
5、mongthemabout90%isutilizedforirrigation.Atpresent,tilephenomenonofwasteofwaterinagriculturalproductionisveryserious;generallyspeaking,theirrigationwaterutilizationratiois40%orso.Thisisinconsistentwithourcountry’sendeavortobuildaresources-savingsociety.Therefore,inordertorealizehighefficiencyinirri
6、gation,ithasbecometheonlywayofsustainableagriculturaldevelopmenttoapplywaterresourcesallocationoptimizationtechnologyinagriculturalproduction.ThepresentareaofDujiangyanirrigationareaamountsto23,200km2,andtheplanedareais28,600km2.itislocatedinChengduplain,middleofSichuanprovince,tileprecipitationin
7、theirrigationareaisinabundance,rangingfrom880mmto1250mm.however,withtheenlargementofirrigationareaandtheincreaseofwaterrequirementfordomesticandindustrialusage,nowtheirrigation四川大学工学顾上论文都江堰灌区渠系优化配水研究areaisfacingt
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