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1、摘要本路線為紅石林場(chǎng)至黑河林場(chǎng)二級(jí)公路,起點(diǎn)測(cè)設(shè)樁號(hào)為K0+000,終點(diǎn)測(cè)設(shè)樁號(hào)為K4+000。全長(zhǎng)4公里,全線所經(jīng)區(qū)域無河流。沿線自然地理概況:路線測(cè)區(qū)地處盆地與丘陵的過渡地帶。地貌成因類型有構(gòu)造剝蝕地形-丘陵,剝蝕堆積地形-丘陵?duì)钆_(tái)地、波狀臺(tái)地和臺(tái)間(山間)谷地,堆積地形-一階地。本路線通過地區(qū)為東北東部山地濕潤(rùn)季凍區(qū),無霜期120~140天。年平均氣溫4℃-6℃,極端最高氣溫38℃,極端最低氣溫-40℃,年降水量672-704毫米,最大凍深1.85米。全線地質(zhì)穩(wěn)定性良好。路線設(shè)計(jì):①計(jì)算行車速度為80公里/小時(shí)。②平面線形:一般最小平曲線半徑為400米,極限最小平曲線
2、半徑為250米不設(shè)超高最小平曲線半徑為2500米,最小緩和曲線長(zhǎng)度70米,停車視距為110米。③縱面線形:最大縱坡為5%,凸形豎曲線半徑≥3000米,凹形豎曲線半徑≥2000米,最小豎曲線長(zhǎng)度70米。路基橫斷面面置及超高方案:路基寬度12米,其中:行車道寬2×3.75米,硬路肩寬2×1.5米,土路肩寬2×0.75米,行車道橫坡2%,土路肩橫坡3%。本設(shè)計(jì)中無加寬路段,半徑小于2500米的曲線均采用超高方式。設(shè)計(jì)標(biāo)準(zhǔn):①交通部現(xiàn)行各種《標(biāo)準(zhǔn)》、《規(guī)范》、《規(guī)程》、《辦法》②中華人民共和國(guó)測(cè)繪行業(yè)標(biāo)準(zhǔn)《全球定位系統(tǒng)(GPS)測(cè)量規(guī)范》關(guān)鍵詞測(cè)設(shè)樁號(hào)、一般最小、極限最小、平均、最
3、低、設(shè)計(jì)標(biāo)準(zhǔn)32AbstractThisroutefortheredstonetreefarmtoHeihetreefarmsecond-classroad,thebeginningsurveysthestationnumberisK0+000,theendpointsurveysthestationnumberisK4+000.Thespan4kilometers,theentirelinepassesthroughtheregionnottohavetherivers.Alongtheroutephysicalgeographysurvey:Theroutemeasur
4、estheareaattendancebasinandtheknollzoneoftransition.Thelandformorigintypehasthestructuredenudationalterrain-knoll,thedisintegrationaccumulational-knollshapeTaiwanplace,theundulationTaiwanplaceandinterstation(ravine)thevalleyland,accumulational-stepplace.Thisroutepassestheareafornortheastea
5、stmountainousregionmoistJiDongqu,frost-freeperiod120~140days.Theannualmeantemperature4℃-6℃,theextremehighesttemperature38℃,theextremelowesttemperature-40℃,theyearprecipitation672-704millimeter,ismostgreatlyfrozenthedeep1.85meters.Theentirelinegeologystabilityisgood.Location:①Thecomputation
6、drivingspeedis80kilometers/hours.②Planelinear:ThemostXiaopingcurveradiusisgenerally400meters,thelimitmostXiaopingcurveradiusis250metersdoesnotsupposethesuperelevationmostXiaopingcurveradiusis2500meters,thesmallesttransitioncurvelength70meters,thestoppingsightdistanceis110meters.③Verticalsu
7、rfacelinear:Thebiggestlengthwisegradeis5%,Crestverticalcurveradius≥3000rice,sagverticalcurveradius≥2000rice,smallestverticalcurvelength70meters.Theroadbedcrosssectionsurfacesetsatandthesuperelevationplan:Roadbedwidth12meters,Inwhich:Lanewidth2×3.75rice,Hardroa