曲线坐标计算1、曲线要素计算(1)缓和曲线常数计算内移距Rl24/p2s切垂距23s240/2/mRlls缓和曲线角RlRlss/902/0(2)曲线要素计算切线长mRT2/tan)p(曲线长180/]180/)2([20RlRlLss外矢距RRE)]2/cos(/)p[(0切曲差LTq22、主要点的里程推算sssSlYHHZ)/22l-(LQZYH)/22l-(LHYQZlZHHYTJDZH检核:HZTJDq3、方位角计算根据已知JD1和JD2的坐标计算出21JDJD偏角211JDJDJDZH18011JDZHZHJD4、计算直线中桩坐标(1)计算ZH点坐标:ZHJDJDZHZHJDJDZHTyyTxx1111sincos(2)计算HZ点坐标:211211coscosJDJDJDHZJDJDJDHZTyyTxx(3)计算直线上任意点中桩坐标待求点到JD1的距离为iL211211sincos-JDJDiJDiJDJDiJDiiLyyLxxHZTL里程待求点里程5、计算缓和曲线中桩坐标(1)第一缓和曲线上任意点中桩坐标在切线坐标系中的坐标为:sisiRllyRlllx6/)(40/325ZH到所求点方位角:ZiZHiZiZHiJDZHZiDyyDxxyxDxysincos))(/arctan(221””,右偏“左偏“(2)第二缓和曲线上任意中桩坐标:在切线坐标系中的坐标为:sisiRllyRlllx6/)(40/325ZH点到所求点的坐标方位角为:HiHZiHiHZiJDJDHiDyyDxxyxDxysincosarctan18022216、计算圆曲线段内任意中桩坐标(1)切线坐标系中:0)/()(180RlLsipRymRxii)cos1(sin(2)统一坐标系中:ZiZHiZiZHiJDZHZiDyyDxxyxDxysincosarctan2217、直线段边桩坐标计算)()90sin()90cos(2121”为“”,右偏为“左偏中中DDDyyDxxJDJDJDJD8、缓和曲线第一缓和曲线]90)/(90sin[]90)/(90cos[2121sZHJDZHsZHJDZHRlLDyyRlLDxx里程差与中里程差与中第二缓和曲线]90)/(90sin[]90)/(90cos[2121sHZJDZHsHZJDZHRlLDyyRlLDxx里程差与中里程差与中9、圆曲线]90)18090(sin[]90)18090(cos[11RlRlDxyRlRlDxxssJDZHssJDZH中中(右偏“+”,左偏“-”)