本说明书对湖南省新田县地区新建(改建)二级公路的设计过程做了介绍，以及

本说明书对湖南省新田县地区新建(改建)二级公路的设计过程做了介绍，以及设计过程中查到的规范，原则，要求等做了说明。说明书对整个设计过程的思路,参考依据,设计路段的地址,地物等情况,还有各指标的拟定以及各个部分的计算都做了详细的说明。<br><br>该说明书包含文字说明和计算说明两部分,主要内容为:路线方案比选,选线说明,平面线形设计,平曲线参数计算及平曲线主要桩号计算,纵断面线形设计,竖曲线参数计算,超高计算,平纵面线形的组合设计,路基横断面设计,路面结构设计,厚度计算,主要参考文献等几个方面。

This manual introduces the design process of new (reconstructed) class II Highway in Xintian County, Hunan Province, as well as the specifications, principles and requirements found in the design process. The instructions give a detailed description of the whole design process, including the ideas, reference basis, the address of the design section, features, etc., as well as the formulation of various indicators and the calculation of various parts.<br>The specification includes two parts: text description and calculation description. The main contents are: Route Scheme Comparison and selection, route selection description, plane alignment design, horizontal curve parameter calculation and main pile number calculation of horizontal curve, longitudinal section alignment design, vertical curve parameter calculation, superelevation calculation, combined design of horizontal and longitudinal alignment, subgrade cross section design, pavement structure design, thickness calculation, main references, etc.

This manual introduces the design process of new (rebuilt) secondary roads in Xintian County, Hunan Province, and explains the specifications, principles and requirements found in the design process. The instruction gives a detailed description of the whole design process, the reference basis, the address of the designed road section, the features, the formulation of each index and the calculation of each part.This manual contains two parts: text description and calculation description. The main contents are: route scheme comparison, route selection description, plane alignment design, plane curve parameter calculation and main pile number calculation of plane curve, vertical profile alignment design, vertical curve parameter calculation, superelevation calculation, combination design of plane and vertical alignment, subgrade cross-section design, pavement structure design, thickness calculation, main references and so on.