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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2009, Vol. 28 ›› Issue (3): 531-533.DOI: 10.3969/j.issn.1674-0696.2009.03.15

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双纽曲线在整体式立交小匝道设计中的应用

项琴1,朱宏伟1,孙家驷2   

  1. 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
  • 收稿日期:2009-03-23 修回日期:2009-04-24 出版日期:2009-06-15 发布日期:2015-04-15
  • 作者简介:项琴(1984—),女,湖北天门人,硕士,从事道路与铁道工程。Email:mmxqin@163.com。

Application?of?Lemniscate?Curve?to?the?Design?of??Integral?Small?Circular?Road?of?Interchange

XiANG Qin1, ZHU Hong-wei1, SUN Jia-si2   

  1. Sichuan?Institute?of?Architecture?Technology,?Sichuan?Deyang?618000,?China;??2.?Chongqing?Jiaotong?University,Chongqing?400074,?China
  • Received:2009-03-23 Revised:2009-04-24 Online:2009-06-15 Published:2015-04-15

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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。

关键词: 立交线形, 双纽曲线, 小环道, 整体性

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.

Key words: interchange linear , Lemniscate curve , small circular road , integrity

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