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1、.摘要關(guān)鍵詞:畢業(yè)設(shè)計(jì)，斜心墻土石壩，穩(wěn)定計(jì)算該江位于我國(guó)西南地區(qū)，本工程攔河壩為斜心墻土石壩。由于山區(qū)水位暴漲暴落，所以設(shè)置成興利庫(kù)容和攔洪庫(kù)容完全不結(jié)合，即正常蓄水位和汛限水位均為2822.4米。本設(shè)計(jì)是側(cè)重于壩工部分以擋水建筑物和泄水建筑物為主的土石壩水利樞紐設(shè)計(jì)。第一步，通過(guò)調(diào)洪演算得到最佳的溢流堰孔口凈寬和堰頂高程方案，比較不同類型的土石壩在施工特點(diǎn)，技術(shù)經(jīng)濟(jì)等方面的優(yōu)劣，最終確定大壩壩型為斜心墻土石壩，并且初定了大壩的輪廓尺寸。然后通過(guò)土料設(shè)計(jì)，對(duì)照指標(biāo)確定了砂礫料場(chǎng)及粘土料場(chǎng)的位置。再選擇壩體的三個(gè)典型斷面對(duì)大壩進(jìn)行滲流計(jì)算，畫出流網(wǎng)圖，校核滲流逸出處的滲透坡降確定
2、是否滿足要求。然后通過(guò)vb編程進(jìn)行壩坡穩(wěn)定分析，最終進(jìn)行壩體細(xì)部構(gòu)造設(shè)計(jì)。第二步，進(jìn)入主要建筑物設(shè)計(jì)階段。確定出大壩的型式及壩址和壩軸線。另外確定該樞紐的組成建筑物，包括擋水建筑物、泄水建筑物、水電站廠房等。第三步，進(jìn)入第二主要建筑物設(shè)計(jì)階段。確定出泄水建筑物的尺寸，型式和結(jié)構(gòu)，定為泄水隧洞。然后進(jìn)行軸線選擇和水力計(jì)算，從下泄能力、凈空余幅、挑距和沖刷深度等方面校核設(shè)計(jì)的可行性。最后進(jìn)行細(xì)部構(gòu)造設(shè)計(jì)。本設(shè)計(jì)以《碾壓式土石壩設(shè)計(jì)規(guī)范SL274-2001》為基本設(shè)計(jì)依據(jù)，外加參考了與土石壩的有關(guān)資料和書籍。由于知識(shí)有限，對(duì)于本設(shè)計(jì)中的不妥及錯(cuò)誤之處，懇請(qǐng)批閱批評(píng)指正。在設(shè)計(jì)過(guò)程中得到
3、了王玲玲等老師的指導(dǎo)，再次表示由衷的感謝。本設(shè)計(jì)共歷時(shí)9周。06021101王越貞AbstractTheRiverislocatedinsouthwestChina,theprojectincludestheRCCdamwithclaycorewallofearth-rockstyle.Thewaterlevelriseduetostormdownthemountains,sotheactiveStorageisnotcombinedwiththedetentionstorage,thatis,normalwaterlevelandfloodcontrollevelareboth
4、2822.4meters.Thedamwasdesignedinparttofocusonretainingbuildingsanddischargestructure-baseddesignofearth-rockdamwatercontrolproject...Afirststep,throughtheFloodRegulatingandCalculatingtogetthebestnetwidthoftheoverflowweirOrificeandthealtitudeofweirtop,thencomparedifferenttypesofearth-rockfeatu
5、resinthecourseofconstruction,technicalandeconomicadvantagesanddisadvantages,andultimatelydeterminethetypeofclaydamearth-rockcore,andtheoutlineofaninitialsizeofthedam.Throughthesoilandthendesign,thecontrolindicatorstodeterminethegravelandclaymaterialyardfieldposition.Onceagainchosenthethreetyp
6、icalcross-sectionofdamforseepagecalculation,drawnetworkmaps,checkingtheseepageinfiltrationgradienttodeterminewhethertomeettherequirements.UseVisualbasicprogrammingtoanalyzethestability,andultimatelytocarryoutdetailedstructuraldesignofthedam.Thesecondstep,toenterthemainbuildingdesignstage.Tode
7、terminethetypeandthedamsiteanddamaxis.Inadditiontodeterminethecompositionofthehubstructures,includingretainingstructures,drainagestructures,suchashydropowerplants.Thethirdstepisthesecondmajorphaseofbuildingdesign.TodeterminethesizeofDischarge
