量化平纵曲线的组合原则  

Quantity the Principle of Combining Plane and Vertical Curves

作　　者：靳灿章[1] 严西华[1] 魏洪涛[1] 熊文胜[1] 

机构地区：[1]天津市市政工程设计研究院,天津300051

出　　处：《河北工业大学学报》2005年第3期69-73,共5页Journal of Hebei University of Technology

摘　　要：现行设计规范对平纵曲线组合只是作了定性规定,并不足以具体地指导实际设计工作.故本文引进一种较为合理的计算模型,来计算凸竖曲线上所能提供的视距,并结合PVSD法来具体量化平原区高速公路平曲线和凸竖曲线的组合原则,以期得到视觉效果最佳的立体线形.The current designing criterion only specifies the principle of combining plane and vertical curves from theory, that can not sufficiently guides the designing practice. So this article introduces a kind of reasonable computing model, and applies it to calculating the sight distance that provided by crest vertical curves, moreover integrates it and method of PVSD to specify from quantity the principle of combining plane and vertical curves which belong to the freeway of plain district. So that designers can achieving the optimum three-dimensional linearis from visional effect.

关 键 词：视距 视觉效果 PVSD法 量化指标 

分 类 号：U412.34[交通运输工程—道路与铁道工程]