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《拱壩畢業(yè)設(shè)計(jì)計(jì)算書--龍?jiān)纯诠皦卧O(shè)計(jì)及施工總組織計(jì)算書》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、龍?jiān)纯诠皦卧O(shè)計(jì)及施工總組織計(jì)算書目錄：第一章拱壩基本參數(shù)計(jì)算21.1壩頂高程的確定21.1.1壩頂超高計(jì)算21.1.2壩頂高程計(jì)算31.2壩型方案及結(jié)構(gòu)布置3第二章應(yīng)力分析62.1荷載計(jì)算62.1.1自重62.1.3泥沙壓力92.1.4揚(yáng)壓力102.1.5溫度荷載112.2地基位移計(jì)算122.3拱冠應(yīng)力分析（拱冠梁法）152.2.3拱冠徑向變位系數(shù)的確定382.2.4拱冠梁變位的計(jì)算412.2.5拱冠梁應(yīng)力計(jì)算442.2.6拱圈應(yīng)力計(jì)算52第三章壩肩穩(wěn)定分析563.1穩(wěn)定分析563.1.1計(jì)算式563.1.2分析過程57第四章溢流設(shè)計(jì)及消能防沖設(shè)計(jì)604.1溢流面計(jì)算604.2下游消能防沖復(fù)
2、核6061龍?jiān)纯诠皦卧O(shè)計(jì)及施工總組織計(jì)算書第一章拱壩基本參數(shù)計(jì)算1.1壩頂高程的確定1.1.1壩頂超高計(jì)算根據(jù)《水利水電工程等級(jí)劃分及洪水標(biāo)準(zhǔn)》（SL252—2000）規(guī)定：龍?jiān)纯谒畮煸O(shè)計(jì)洪水標(biāo)準(zhǔn)采用50年一遇，校核洪水標(biāo)準(zhǔn)采用500年一遇，按照《漿砌石壩設(shè)計(jì)規(guī)范》SL25—91，《砼拱壩設(shè)計(jì)規(guī)范》SL282—2003中規(guī)定計(jì)算大壩需要的壩頂超高。壩頂超高按下式計(jì)算：△h=Zhi+h0+hC式中：Zhi—波浪高（m）h0—波浪中心線至水庫靜水位的高度（m）hC—安全超高（m）（正常運(yùn)行情況hC=0.4m，非常運(yùn)行情況hC=0.3m）g(Zhi)/V△2=0.0076V0-1/12(gD/V0
3、2)1/3gLm/V02=0.331V0-7/15(gD/V02)4/15h0=[π（Zhi）2/Lm]Cth（2πH1/Lm）式中：Lm—波長（m）D—吹程（D=3000m）V0—多年平均最大風(fēng)速，V0=17.5m/s，正常運(yùn)用條件下采用V0′=1.5V0H1—水域平均水深（m）壩頂超高計(jì)算成果列如表1-4。表1-4壩頂超高計(jì)算成果表項(xiàng)目P（%）波浪高2hi（m）風(fēng)壅高h(yuǎn)0（m）安全超高h(yuǎn)C（m）合計(jì)（m）0.21.070.390.31.762.01.780.720.42.9061龍?jiān)纯诠皦卧O(shè)計(jì)及施工總組織計(jì)算書1.1.2壩頂高程計(jì)算壩頂高程計(jì)算結(jié)果列表于1-5。表1-5壩頂高程計(jì)算成果表
4、項(xiàng)目P（%）水位（m）壩頂超高（m）計(jì)算壩頂高程（m）0.2321.001.76322.762.0319.982.90322.88取大值322.88m，本工程取323.00m。1.2壩型方案及結(jié)構(gòu)布置本工程按砌石拱壩進(jìn)行設(shè)計(jì)，初擬壩底厚為10m。該壩址受地形、地質(zhì)條件的限制，右?guī)r山體下有一沖溝從坎肩后面通過，左岸山體稍欠單薄，拱端的位置由于受這些因素的制約，僅能在有限的范圍內(nèi)進(jìn)行選擇，拱壩的具體位置布置如圖所示。拱圈參數(shù)的擬定：1、中心角2φA：砌石拱壩頂拱中心角可選用80°～110°，下層可采用40°～80°。2、拱圈半徑：初步擬定可按下式計(jì)算，拱圈內(nèi)半徑R內(nèi)=L/(2sinφA)，式中L
5、為弦長。3、拱冠梁的形式和尺寸壩頂高程處開挖后的河床寬度L經(jīng)多次布置，L最終選定為138.47m。根據(jù)經(jīng)驗(yàn)公式，可求得壩頂?shù)缀穸?。式中：為壩頂厚?為壩底厚度;61龍?jiān)纯诠皦卧O(shè)計(jì)及施工總組織計(jì)算書為開挖后壩頂高程河岸寬度;H為壩高。經(jīng)計(jì)算Tc=3.5mTb=15m已知Tc,Tb后，可查《砌石壩設(shè)計(jì)》拱冠梁經(jīng)驗(yàn)斷面表格得出拱冠梁1-6斷面尺寸如下表h/H拱厚Tx/H上游偏距x下游偏距T-x0.00Tc=3.50.000.003.50.10Tc+0.123△T=4.910.031.623.290.20Tc+0.226△T=6.010.063.083.020.30Tc+0.340△T=7.410.
6、084.373.040.40Tc+0.443△T=8.590.105.513.080.50Tc+0.528△T=9.570.126.213.360.60Tc+0.623△T=10.660.126.644.020.70Tc+0.698△T=11.530.136.804.730.80Tc+0.792△T=12.610.126.645.970.90Tc+0.897△T=13.820.116.167.661.00Tb=150.105.299.71拱圈幾何尺寸擬定見下表1-7：表1-7大壩幾何尺寸表高程（m）厚度（m）園心角（°）半徑（m）各層高差（m）φ左φ右R內(nèi)R外233.5555581.3584
7、.8510.861龍?jiān)纯诠皦卧O(shè)計(jì)及施工總組織計(jì)算書312.26.01484875.7581.8510.8301.48.59464460.6969.285.42969.57454449.6659.235.4290.610.66434342.3152.975.4285.211.53424234.2945.825.4279.812.61404021.3033.912691528299.0824.0810.861龍?jiān)?/p>
