改建公路工程实例

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1、word完美格式我国交通事业迅速发展，新建公路工程层出不穷。同时，很多早期规划的路段都不能满足需要，公路改建势在必行。老路的改建必将越来越多，因此，改建技术急需进一步研究与提高，以完善国家基础设施建设，满足日益增长的交通需求。本文以S336江都段改造工程施工设计为研究对象。S336江都段改造工程路线全长13.714km，全线采用具有集散功能的平原微丘区一级公路标准，设计计算行车速度80km/h，集镇段限速40km/h。本设计范围为通江段（K5+888.224～K13+714.437）。该段路基采用整体式24.5m标准一级公路断面。路线共跨越四条河流，与平面交

2、叉共三处，与乡村道路交叉共6处。本文在工程可行性研究的基础上，完成了路线、路基、路面的设计。介绍了工程的设计背景及沿线的水文地质等概况，并对工程的设计概况进行总体说明。结合施工图设计的整个过程，较全面地阐述了平原地区高等级公路改造工程的路线、路基、路面的设计原则和方法，着重研究了路线方案的比选、特殊路基的设计以及路面结构的设计。关键词：路线路基路面施工图设计精心整理学习帮手word完美格式AbstractToday,ourcountryroadtrafficcausedevelopsveryfast;newlybuilthighwayengineeringe

3、mergesinanendlessstream.Atthesametime,alotofhighwayearlyplanningsectionscan'tsatisfythedemand,andthesereconstructionsareunavoidable.Therewillbemoreandmorerebuildingoftheoldroad,so,reconstructiontechnologyneedbadlyfurtherresearchandpracticeinordertoimprovethenationalbasicconstructio

4、noffacilitiesandmeetthetrafficdemandincreaseddaybyday.ThisthesisregardsimprovementprojectdetaildesignofSectionofJiangduofS336astheresearchobject.Thetotallengthof336Jiangdusectionimprovementprojectis13.714km.ItadoptsthestandardofClassIHighwayofhillyterrainandplaindistrictwithcollect

5、inganddistributingfunctioncompletely.Thedesignandcalculatedrivingspeedis80km/h,andthespeedofmarkettownsectionmustnotsurpass40km/h.ThedesignsphereistheSectionofTongjiang(K5+888.224～K13+714.437).ThissectionofsubgradeadoptsthestandardsectionofClassIHighwayofintegral24.5m.Theroutecross

6、esoverfourrivers,hasthreeat-gradeintersections,andsixintersectionswithruralroads.Onthebasisofprojectfeasibilityresearch,thisthesishasfinishedthedesignoftheroute、subgradeandpavement.Theintroductorysonghasintroducedsuchoverviewasthedesignbackgroundoftheprojectandhydrogeologyalongthel

7、ineandsoon,laterprovedvirallytothedesignoverviewoftheproject.Combiningthewholecoursethattheconstructiondrawingisdesigned,ithasexplaineddesignprincipleandmethodsoftheroute，subgrade，pavementofthefreewayinplainarea,haveemphaticallystudiedtheroutedesignschemeselecting，specialsubgradede

8、signandpavementstructurede