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1、摘要本路线为红石林场至黑河林场二级公路,起点测设桩号为K0+000,终点测设桩号为K4+000。全长4公里,全线所经区域无河流。沿线自然地理概况:路线测区地处盆地与丘陵的过渡地带。地貌成因类型有构造剥蚀地形-丘陵,剥蚀堆积地形-丘陵状台地、波状台地和台间(山间)谷地,堆积地形-一阶地。本路线通过地区为东北东部山地湿润季冻区,无霜期120~140天。年平均气温4℃-6℃,极端最高气温38℃,极端最低气温-40℃,年降水量672-704毫米,最大冻深1.85米。全线地质稳定性良好。路线设计:①计算行车速度为80公里/小时。②平面线形:一般最小平曲线半径为400米,极限最小平曲线
2、半径为250米不设超高最小平曲线半径为2500米,最小缓和曲线长度70米,停车视距为110米。③纵面线形:最大纵坡为5%,凸形竖曲线半径≥3000米,凹形竖曲线半径≥2000米,最小竖曲线长度70米。路基横断面面置及超高方案:路基宽度12米,其中:行车道宽2×3.75米,硬路肩宽2×1.5米,土路肩宽2×0.75米,行车道横坡2%,土路肩横坡3%。本设计中无加宽路段,半径小于2500米的曲线均采用超高方式。设计标准:①交通部现行各种《标准》、《规范》、《规程》、《办法》②中华人民共和国测绘行业标准《全球定位系统(GPS)测量规范》关键词测设桩号、一般最小、极限最小、平均、最
3、低、设计标准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