改扩建高速公路超高设计  

Design of superelevation of reconstruction and extension freeway

作　　者：周广奇 黄卫明 李明勋 ZHOU Guang-qi;Huang Wei-ming;LI Ming-xun(Shandong Provincial Communication Planning and DesignInstitute,Shandong Jinan 250031 China;Qingdao Highway Main HubConstruction and Development Center,Shandong Qingdao 266101 China)

机构地区：[1]山东省交通规划设计院,山东济南250031 [2]青岛市公路主枢纽建设发展中心,山东青岛266101

出　　处：《山东交通科技》2018年第4期94-96,共3页

摘　　要：在高速公路改扩建建设中,对拼宽道路设置超高的路段基本都需要调整超高渐变段长度的情况,采用合理的超高方式对道路的纵断面及横坡拟合起着明显影响,进而影响路面铺筑的施工和质量。In the reconstruction and expansion of the freeway,it usually needs to increase the length of the ultrahigh gradient section with the subgrade widening,using reasonable designing of superelevation will have a significant impact on the longitudinal section and the cross slope fitting,and then influence the construction and quality of pavement construction.

关 键 词：改扩建 超高 线性渐变 三次抛物线渐变 路面铺筑 

分 类 号：U412.3[交通运输工程—道路与铁道工程]