六车道以上高速公路超高设计方法的研究

Research on super-elevation about six-or-more-lane freeway

新的《公路工程技术标准》、《公路路线设计规范》、《公路勘测规范》在设计理念和技术手段上都与旧的《标准》和《规范》有较大的不同,原有的设计方法和计算方法的许多内容与新《规范》、《标准》不相符,尤其是超高的计算部分,新规定太多,又缺乏参考的计算公式.文章结合课题,研究了新的《规范》、《标准》条件下,高速公路超高值的确定,缓和曲线长度的计算方法,并分别研究了设置一条路拱线条件下和设置两条路拱线条件下,超高过渡段内不同的旋转阶段超高值的设计方法,并给出了相应的计算公式.

There are many differences between new Technical Standard of Highway Engineering, Design Specification for Highway Alignment, Specifications for Highway Reconnaissance and old ones on design thinking and design methods. The old design methods are not fit for the new situation, especially in super-elevation computing method, but there is not a new suitable calculating method. This paper researches the super-elevation calculating methods according to the new standards and specifications integrating the research project, and researches the methods on calculating the numerical value of super-elevation and the length of spiral, and researches the super-elevation design methods during transition zone of freeway super-elevation under the conditions of one crown line or two crown lines, and at the same time gives the appropriate computing formulas.