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ID:40506822
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页数:11页
时间:2019-08-03
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1、Unit1IntroductionPublic公共工程(市政工程,公共建设工程)Privatecontractingofcivilworks私人承包土建项目Trafficvolume交通量Landsurveyor土地测量员Photogrammetry摄影测量技术Horizontalandverticalcurvature平纵线形Slope边坡,斜坡Earthwork土方工程Embankment路堤Cutsandfills挖方和填方Drainsandsewers排水和排污管道Paving路面摊铺Asphalt沥青Concreteslab混凝土板Wirebaske
2、t钢筋网Steeldowel传力杆,合缝钢条Tinetheconcrete混凝土路面拉毛Unit2HorizontalAlignmentHorizontalalignment道路平面线形Verticalalignment道路纵断面线性Crosssection道路横断面Passing超车Highwaycapacity道路通行能力Cross-sectionelement道路横断面要素Geometricdesign几何设计,线形设计Facility(道路)设施Tangent直线Circularcurve圆曲线Spiraltransitioncurves缓和曲线Con
3、structioncost建筑工程成本Right-of-way路权Right-of-waycost征地费用Functionalclassification道路功能分类Levelofservice道路服务水平Designspeed设计速度Pointofintersection交点Tangent切线Backandforwardtangent前后切线Vertex顶点Intersectingangle交角,转角Traverse导线Centralangle圆心角Radius半径Pointofcurvature直圆点Pointoftangency园直点Pointofcur
4、ve曲线上任意一点Lengthofcurve曲线长Tangentofdistance切线长Longchord弦长Full-chorddistance全弦长度Sub-chorddistance子弦长度Externaldistance外矩Middleordinate中矩Degreeofcurve曲率Minimumradius极限最小半径Theminimumradiusisalimitingvalueofcurvature极限最小半径就是曲率的极限最大值Superelevation超高Sidefrictionfactor路面横向摩擦系数Flatcurve大半径曲线,
5、大弯Maximumpermissibledegreeofcurvature最大允许曲率,即极限最小半径Transitioncurves缓和曲线Simplecurve简单型曲线Compoundcurve复曲线Reversecurve反向曲线Spiralcurve螺旋线Consistency连续性,一致性Broken-backcurve断背曲线Highfills高填方Unit3VerticalAlignmentVerticalcurve竖曲线Typical(cross0)section典型横断面,标准横断面Clearance道路建筑限界,净空Profilegrad
6、eline纵断面设计线Straight直线Elevation高程Maximumgrades最大纵坡Auxiliarylane辅助车道Minimumgrade最小纵坡Subgrade路基Crownslope路拱横坡Criticallengthofgrade最大纵坡Passingsightdistance超车视距Volume/capacityratio交通量与道路通行能力的比值Paraboliccurve抛物线Verticalpointofcurvature竖曲线圆直点Verticalpointofintersection竖曲线的变坡点Verticalpointo
7、ftangency竖曲线直圆点Grade纵坡,坡度Crestcurve凸形竖曲线Sagcurve凹形竖曲线Headlightsightdistance头灯视距Stoppingsightdistance停车视距LOSA(levelofsectionA)自由流LOSB(levelofsectionB)稳定流LOSC(levelofsectionC)饱和流LOSD(levelofsectionD)强制流DHV(designhourlyvolume)设计每小时交通量Emergencyescaperamp紧急避险车道Gravityramp重力型避险车道Sandpiler
8、amp沙堆型避险车道Arresterb
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