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1、河北工程大學(xué)畢業(yè)設(shè)計摘要本設(shè)計主要是有關(guān)PS水庫除險加固設(shè)計,PS水庫位于河北省沙河市境內(nèi),工程為?。?)型五等工程,主要建筑物為五級,由主壩、副壩、溢流壩和放水洞等四部分組成。樞紐的主要任務(wù)以防洪、灌溉和供人畜飲水為主。PS水庫現(xiàn)狀存在的問題如下:(1)大壩基礎(chǔ)抗滑不滿足要求,壩體高水位時滲漏嚴重(2)壩頂高程不滿足規(guī)范要求(3)放水洞閘閥損壞(4)大壩下游無消能防沖設(shè)施針對水庫現(xiàn)狀存在的主要問題,需要對水庫進行初步的校核。主要內(nèi)容包括擋水壩段的抗滑穩(wěn)定計算和應(yīng)力復(fù)核,溢流壩段的抗滑穩(wěn)定計算和應(yīng)力復(fù)核,溢流壩段過水能力及消能的計算等三大部分。壩體抗滑穩(wěn)定計算是重力壩設(shè)計的一項重要
2、內(nèi)容,其目的是驗算壩體沿壩基面的抗滑穩(wěn)定安全度,利用公式判別大壩是否滿足抗滑穩(wěn)定要求。經(jīng)計算得大壩在某些工況下不滿足抗滑穩(wěn)定要求。應(yīng)力分析的目的是檢驗壩體在施工和運用期間是否滿足強度要求,利用材料力學(xué)的方法檢驗應(yīng)力是否滿足要求。經(jīng)計算得大壩在某些工況下不滿足要求。溢流壩過流能力驗算及消能計算依據(jù)《溢洪道設(shè)計規(guī)范》SL253-2000計算。經(jīng)計算滿足要求。根據(jù)上述校核中所出現(xiàn)的問題,對PS水庫進行除險加固,以滿足水庫的正常運作。關(guān)鍵詞:PS水庫、除險加固、抗滑穩(wěn)定計算、應(yīng)力復(fù)核75河北工程大學(xué)畢業(yè)設(shè)計SummaryThisdesign,thePSreservoirreinforcem
3、entdesign,PSreservoirislocatedinShaheCityintheworksforasmall(2)fiveotherprojects,themainbuildingforthefivemaindamandauxiliarydam,spillwayandsuchaswaterholesinfourparts.Themaintaskofthehubtofloodcontrol,irrigationandfordrinkingwatermain.PSreservoirstatusquoexistingproblemsareasfollows:Damfounda
4、tionslidingdoesnotmeettherequirementsofserioushighwaterlevelofdamleakageCrestelevationdoesnotmeetthespecificationrequirementsWaterholegatevalvedamageDamdownstreamenergydissipationandscourprotectionfacilitiesApreliminarycheckofthemainproblemsofreservoirstatusquo,theneedforthereservoir.Themainco
5、ntentsincluderetainingmonolithstabilityagainstslidingcalculationandstressforreview,thestabilityagainstslidingcalculationandstressforreviewoftheSpillway,Spillwayoverthewatercapacityandenergydissipationcalculation.Thecalculationofdamstabilityagainstslidingisanimportantpartofthegravitydamdesign,w
6、iththeaimofcheckingthedamalongthedamfoundationstabilityagainstslidingsafety,usetheformulatodistinguishdamwhethertomeettherequirementsofstabilityagainstsliding.Thecalculateddamstabilityagainstslidingincertainconditionsdoesnotmeettherequirements.Thepurposeofthestressanalysisistotestdamduringthec
7、onstructionandusemeetthestrengthrequirements,theuseofmechanicalmeansofcheckingstresstomeettherequirements.Calculateddamincertainconditionsdoesnotmeettherequirements.Spillwayflowcapacitycheckingandeliminatethebasisforcalculatingthespillw