定测中线遇障碍时的测量方法  

A METHOD TO SURVEY THE CENTER LINE EXISTING OBSTACLES

作　　者：吴祖海[1] 

机构地区：[1]长沙铁道学院土木工程系

出　　处：《中国有色金属学报》1996年第2期156-158,共3页The Chinese Journal of Nonferrous Metals

摘　　要：当定测中线遇到障碍时，在中线某一侧设置加桩，即可有效地避开障碍物而完成纵横断面的测量工作，该文给出了计算加桩点所在横断面的里程。When obstacles exist in the direction of the center line, the longitudinal profile and cross section survey can be made by setting up an additional peg on one side of the center line to avoid the obstacles. This paper gave out the corresponding equations for calculating the mileage of the cross section in which the peg lies, the horizontal distance between the additional peg point and the center line, and the direction of the cross section.

关 键 词：缓和曲线 里程 横断面 中线 测量 

分 类 号：P215[天文地球—测绘科学与技术]