ZSKai設(shè)計說計說明2010-6-2.doc

濰坊學(xué)院本科畢業(yè)論文第頁I摘要本次設(shè)計為途徑陜西渭南的一段一級公路設(shè)計。全線在渭南白楊鄉(xiāng)境內(nèi)，總長7800米。此次設(shè)計的道路根據(jù)當(dāng)?shù)氐慕煌康拇笮∫鬄殡p向四車道，設(shè)計時速為80千米/小時，道路總寬度為24.5米，單向行車道寬7.5米。由于所筑道路所經(jīng)路程既有平原微丘又有起伏較大山嶺重丘，施工較為困難，土石方工程浩大，施工過程中要解決很多技術(shù)問題，故施工工期受到多方面影響。道路全線總長7800米，其中道路建設(shè)長度為7800米，由于從K0+676-K0+682、K2+630-K2+698為兩座中橋，根據(jù)平面圖的地形、地貌、水文等條件可以知道在本路段要進(jìn)行浸水路堤設(shè)計，為了防治河水沖刷對路堤造成破壞，故此路段的路堤采用了直接防護(hù)措施中的拋石防護(hù)的方法。在選線上，從道路所處地理條件，施工難度和經(jīng)濟(jì)上考慮，并且還要滿足一級公路的行駛要求，確定主線。一級公路，對于平原微丘地形一般最小半徑為1000m，極限最小半徑650m:而對于山嶺重丘地區(qū)地形一般最小半徑為700m，極限最小半徑600m。全線共設(shè)六處平曲線，縱斷面上共設(shè)三處豎曲線，滿足行駛最大坡度和長度要求，保證道路的通順和良好的視野。新建路面設(shè)計總共分四層，規(guī)范規(guī)定高速公路、一級公路的面層由兩至三層組成。根據(jù)規(guī)范推薦，本路面設(shè)計采用兩層式瀝青面層，表面層采用細(xì)粒式瀝青混凝土(厚度4cm)，中面層采用中粒式瀝青混凝土(厚度6cm)，基層采用石灰粉煤灰沙礫土(厚度26cm)，下基層采用石灰土穩(wěn)定碎石(厚度25cm)。當(dāng)以設(shè)計彎沉值為指標(biāo)及瀝青層層底拉應(yīng)力驗算時，設(shè)計年限內(nèi)一個車道上累計當(dāng)量軸次1120萬次，經(jīng)驗算彎沉值和拉應(yīng)力均滿足要求。施工組織設(shè)計主要確定了各項的施工工序和工藝流程。根據(jù)總體施工情況，總共設(shè)置了四個施工隊平行施工。工期確定根據(jù)關(guān)鍵機(jī)器臺班數(shù)量和工程量，施工工序相互協(xié)調(diào)確定，本次預(yù)計施工總工期大約七個月，由于天氣或外界環(huán)境影響施工工期可以彈性變化。關(guān)鍵詞平、縱、橫路線設(shè)計，路面結(jié)構(gòu)，施工組織。濰坊學(xué)院本科畢業(yè)論文第頁IIABSTRACTThisisthedesignforthefirstclassroadinWeinan,ShanxiProvince.ThewholelineoftheroadlocatesinthebaiyangCounty,Weinanandthetotallengthis7800m.Theroadhasthecharactersasbelow:4-linedoubleway,80km/h,24.5mwideand7.5mwideperline.Fortheconcernofmountainousterrainanddifficultiesintheconstruction,theremightbemanyproblemsinthepracticalconstruction.Thetotallengthofthedesignis7800m.Theroadinconstructionisabout7800m.SinceK0+676-K0+682，K2+630-K2+698bridgefortwo,Undertheplantopographyoftheterrain,topography,hydrologicalconditionscanknowthatthesegmentforsoakingembankmentdesignTocombattheerosionoftheriverembankmentcauseddamage,Thereforesectionoftheembankmentusingadirectmeasureofprotectionriprapprotectionmethods.Whenchoosingthemainline,weconsiderthefactorsofmountainousconditions,constructiondifficultiesandfinancialbudget.Thereare5horizontalcurveswiththeradiuof1000m,and3verticalcurveswhichwouldensurethemaximumgradeandlengthrequirementsofdesign.Atthesametime,thetravelwouldbesmoothandthescopewillbefine.Theroadstructureconsistof6levels,Newpavementdesignledtoatotalbreakdown,normshighway,aroadsurfacebytwotothreecomponents.Accordingtonormsrecommendedthatthethree-tierdesignoftheroadasphaltsurface,usingfine-grainedsurfacelayerofasphaltmasticlithotripsy(4cmthickness),Faciallayerusedthetablets-gradedasphaltconcrete(5cmthickness),Belowlayerusingcoarseasphaltconcrete(thicknessof5cm)primaryuseofcementgravelsoils(thicknessunknown)andlimesoilstabilityscheduledlithotripsy(20cmthickness),thegrassrootsusinginterstitiallithotripsy(20cmthickness).Whenadesigndeflectionvalueofindicatorsandbottomlayersofasphaltstresscalculation,Designlifeofalanecumulativeequivalentaxleof11.2milliontimes,experiencecountdeflectionvalueandtensilestresscanmeetthedemands.Thispartofdesignisaboutmakingtherightsequenceofconstruction.Accordingtothegeneralsituation,weorganizefourdifferentgroupsworkinginparallel.Themethodforconstructionisdecidedbytheprojectquntumnandtechnologiesintheconstruction。Thetimeforconstructionisdeterminedbydainclassandtheprojectquntumn.Theoveralltimeofconstructionisestimatedtobesevenmonthswhichmightvaryduetotheweatherchanges.KEYWORDSpeace,verticalandhorizontallinedesign,surfacestructure,constructionmanagement,budget濰坊學(xué)院本科畢業(yè)論文第頁III目錄前言.1第1章總說明.41.1地形、地貌.41.2地質(zhì)條件.41.3水文地質(zhì).41.4氣候條件.51.5；旅游資源.51.1.6地震.5第2章路線設(shè)計.62.1設(shè)計概況.62.2平面線形設(shè)計.62.2.1路線定線、選線規(guī)則.62.2.2平曲線要素計算.82.3縱斷面線形設(shè)計.122.3.1設(shè)計原則及要求.122.3.2豎曲線要素計算.152.4橫斷面線形設(shè)計.162.4.1本設(shè)計路段橫斷面設(shè)計形式.16第3章路基設(shè)計.173.1設(shè)計原則和依據(jù).173.1.1設(shè)計原則.173.1.2設(shè)計依據(jù).173.2橫斷面的設(shè)計情況.17濰坊學(xué)院本科畢業(yè)論文第頁IV3.2.1路基橫斷面設(shè)計.173.2.2加寬設(shè)計說明.183.3路基排水系統(tǒng)結(jié)構(gòu)和布置.203.3.1路基路面排水設(shè)計原則.203.3.2路基排水設(shè)計.203.3.3路面排水設(shè)計.22第4章路面設(shè)計.254.1路面設(shè)計原則.254.2設(shè)計步驟.264.2.1設(shè)計路面簡介.264.2.2設(shè)計彎沉值和容許拉應(yīng)力計算.264.2.3新建路面未知層（石灰土穩(wěn)定碎石層）厚度計算.284.2.4設(shè)計指標(biāo)匯總.29第5章公路施工組織設(shè)計.335.1編制依據(jù).33