| 双纽曲线在整体式立交小匝道设计中的应用 |
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| 引用本文： | 项琴,朱宏伟,孙家驷.双纽曲线在整体式立交小匝道设计中的应用[J].重庆交通大学学报(自然科学版),2009,28(3):531-533,627. |
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| 作者姓名： | 项琴 朱宏伟 孙家驷 |
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| 作者单位： | 1. 四川建筑职业技术学院,四川德阳,618000
2. 重庆交通大学,重庆,400074 |
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| 摘 要： | 通过对双纽曲线几何特征和路用性能的分析,提出把双纽曲线作为整体式立交小环道线型,论证了双纽曲线整体式小环道的可行性。结合实际情况,推导出了双纽曲线在道路斜交时的通用曲线方程。为了便于施工设计,选择了一个合理的双纽曲线小环道设计参数,并给出了双纽曲线的敷设定位公式。最后,从不同方面对双纽曲线整体式小环道与传统的组合式小环道进行了客观的比较。
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| 关 键 词： | 立交线形 双纽曲线 小环道 整体性 |
Application of Lemniscate Curve to the Design of Integral Small Circular Road of Interchange |
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| XIANG Qin,ZHU Hong-wei,SUN Jia-si.Application of Lemniscate Curve to the Design of Integral Small Circular Road of Interchange[J].Journal of Chongqing Jiaotong University,2009,28(3):531-533,627. |
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| Authors: | XIANG Qin ZHU Hong-wei SUN Jia-si |
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| Abstract: | According to the analysis on geometry characteristics of the Lemniscate curve and road performance,the application of Lemniscate curve in designing the integral small circular road of interchange is proposed and the feasibility of the usage of the Lemniscate curve is also testified.Based on the practical situation,the common formula to oblique interchange is obtained.For the sake of convenient design and construction,the design parameter of Lemniscate curve small circular road is chosen,and the formula for location of Lemniscate curve is given.Finally,objective comparisons are carried out between the Lemniscate curve and the conventional small circular road from different aspects. |
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| Keywords: | interchange linear Lemniscate curve small circular road integrity |
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