摘要
根据推导出的二次抛物线式和圆曲线式两种形式的竖曲线的高程精确计算公式,结合规范给定的竖曲线的最小半径与竖曲线长度以及条文说明中的推荐半径,计算两种形式竖曲线的变坡点处高程差值,分析两种类型竖曲线之间的数值关系,探讨两种形式竖曲线之间相互通用的条件。
According to the elevation accurate calculation formula of the induced quadratic parabola and circle curve, the paper calculates the elevation difference at slope changing points of the two vertical curves by combining with the regulated minimum diameter of the vertical curve and its length, as well as the recommended diameter in the instruction, analyzes the numeric relationship between the two vertical curves, and explores the conditions for the mutual application of the two vertical curves.
出处
《山西建筑》
2012年第27期161-163,共3页
Shanxi Architecture
关键词
二次抛物线
圆曲线
竖曲线
计算
对比分析
quadratic parabola, circular curve, vertical curve, calculation, comparative analysis
