不对称道路曲线的平面计算  

Planar Calculation of Unsymmetrical Route Curve

作　　者：王晓光[1] 吴耀栋[2] 

机构地区：[1]吉林建筑工程学院交通科学与工程学院,长春130021 [2]吉林建筑工程学院勘测公司,长春130021

出　　处：《吉林建筑工程学院学报》2008年第1期63-65,共3页Journal of Jilin Architectural and Civil Engineering

摘　　要：提供了计算道路不对称曲线中线大地坐标、边标桩大地坐标完整的数学模型.该数学模型,适用于道路对称曲线和不设缓和曲线的圆曲线,对此,文中进行了详细的叙述.笔者推导出了不对称曲线偏角分配的实用公式,解决了不对称曲线计算中的关键问题.提出了利用道路中线的法线求解路线任意点坐标的计算模式,在计算出中线坐标的基础上,给出了计算中线任一点法线方位角的计算公式,使边桩坐标的计算只与中线坐标有关,而与其他计算无关.This paper introduces mathematical model to calculate central line and side line geodetic coordinate of road unsymmetrical curve, which is suitable to symmetrical curve and circle curve, and discusses in details. The paper has proved practical formula to allocate deflection angle,and it＇s key problem of unsymmetrical curve calculation. The paper applies the calculation mode to solve coordinate of any point on route by normal line. Base on central line coordinate given out and calculation formula provided by this paper that calculate azimuth of normal line of any point on central line, calculation of side line coordinate is connected with central line coordinate only, and has no concern with other calculation.

关 键 词：道路平面计算 不对称曲线 大地坐标 

分 类 号：TU412[建筑科学—岩土工程]