半苜蓿叶半定向型组合立交运用与分析

The Application and Analysis of A New Type Semi-Cloverleaf Semi-Directional Compounded Interchange

本文推荐一种对角线式的半苜蓿叶半定向型组合式立交方案，该立交方案构思新颖，布局紧凑，功能齐全，造型美观，并紧密结合地形、地物条件。特别是在城市和山区，当地物地形控制较严时，能达到用地省、拆迁少、技术合理，费用经济之功能．该立交方案已被重庆书嘉陵江三桥南头黄花园立交采用。文章还对半苜蓿叶半定向型组合立文的分类体系进行了分析，并对立交方案设计的原则提出了一些意见。

In this paper,a new type diagonal interchange compounded by semi-cloverleaf and semi-directional type is recom- mended.It is a alternative with a new configuration,a closely arrangement and a beautiful appearance. It can coordinatethe environment arround the interchange and can be amployed in urban distriets and mountainous where therc are restric-tios of topograph and culture. This new type interchange has been adopted in HuangHuayuan interchange in the southernend of JiaLingRive bridge of Chongqing.In this paper,also,the classification system and type of semi-cloverleaf+semi-directional compound interchange isanalysed and the views on the design rnlar of interchange alternative is presented.