立交匝道中线坐标的计算  

Calculation of Coordinates of the Overpass Ramp Central Line

作　　者：徐卫国[1] 肖伦波[1] 何冶兰 

机构地区：[1]湖北水利水电职业技术学院,武汉430070 [2]武汉电信网络维护中心,武汉430071

出　　处：《工程地球物理学报》2008年第6期747-750,共4页Chinese Journal of Engineering Geophysics

摘　　要：立交桥匝道是多个曲线元组成,计算匝道坐标时,要将各曲线元分解开来,根据每一曲线元起始连接点处的坐标及切线的方位角,计算细部坐标。困难的是回旋线的计算,文中给出了不同回旋线直接计算施工坐标的方法。Overpass ramp is composed of a number of curve elements. In calculation of coordinates of the ramp, the curve element will be decomposed. Based on the coordinates and azimuth of tangent line in connecting points of each curve, the detail coordinate points can be calculated. However, it is difficult for a spiral curve to be calculated. In this paper, the method of using different spiral curve to calculate the construction coordinates is introduced.

关 键 词：匝道 曲线元 坐标 

分 类 号：P631[天文地球—地质矿产勘探]