某水库除险加固初步设计

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1、河北工程大学毕业设计（论文）设计总说明PS水库位于河北省沙河市境内，属海河流域滏阳河系沙洺河支流。本工程存在的主要问题如下：(1)大坝基础抗滑不满足要求，坝体高水位时渗漏严重。(2)坝顶高程在不满足规范要求。(3)放水洞闸阀损坏。(4)大坝下游无消能防冲设施。经鉴定大坝属于三类坝。PS水库除险加固设计是根据实际工程进行初步设计，主要内容包括坝体的抗滑稳定计算，坝基应力复合，溢流坝过流能力及消能计算等几个部分。坝体抗滑稳定计算是重力坝设计的一项重要内容，其目的是验算坝体沿坝基面的抗滑稳定安全度，利用公式判别大坝是否满足抗滑稳定要求。经计算得大坝在某些工况下不满足抗滑稳定要求。应力分析的目的

2、是检验坝体在施工和运用期间是否满足强度要求，利用材料力学的方法检验应力是否满足要求。经计算得大坝在某些工况下不满足要求。溢流坝过流能力验算及消能计算依据《溢洪道设计规范》SL253-2000计算。经计算得满足要求。最后进行除险加固方案设计，使不满足要求的工况满足设计要求，使大坝得到加固。关键词：抗滑稳定、应力复合、过流能力及消能计算。2河北工程大学毕业设计（论文）GeneraldescriptionofdesignPSreservoirinHebeiprovinceShahecitywithintheboundaries,theHaiheRiverValleyofMingheRivert

3、ributaryofFuyangRiversand.Theengineeringproblemsasfollows(1)Thedamfoundationagainstslidingofdamdoesnotmeettherequirements,theseriousleakageofhighwaterlevel.(2)Thecrestelevationdoesnotmeettherequirementsofthecodeinthestandard.(3)Thedischargevalvedamage.(4)Thedamdownstreamenergydissipationfacilitie

4、s.Theidentificationofthedambelongstothethreekindofdam.PSreservoirreinforcementdesignisaccordingtotheactualprojectpreliminarydesign,themaincontentsincludethecalculationofstabilityagainstslidingofdam,damfoundationstresscomposite,spillwaydischargecapacityandenergydissipationandotherparts.Calculation

5、onstabilityagainstslidingofgravitydamisanimportantissueinthedesign,itspurposeistocheckdamalongtheinterfacebetweendamandfoundationstabilityagainstslidingofdamsafety,usingtheformulaforjudgingwhethermeettherequirementsofstabilityagainstsliding.Thecalculationofdaminsomecasesdonotmeettherequirementsof

6、stabilityagainstsliding.Stressanalysistotestthedaminconstructionandusingperiodwhethermeetthestrengthrequirements,useofmaterialmechanicsmethodtestingstresswhethermeettherequirements.Thecalculationofdaminsomecasesdonotmeettherequirements.Spillwayflowcapacitycalculationandenergydissipationcalculatio

7、nbasedon"designcodeforSpillway"SL253-2000calculation.Throughcalculation,tomeettherequirements.Thefinalprojectreinforcementdesign,whichdoesnotmeettherequirementsofoperationandmeetthedesignrequirements,thedamisstrengthen