平纵线形优化设计与施工研究

Research on optimization design and construction of horizontal and vertical alignment

以京台高速济泰段改扩建项目为工程背景,研究不同类型公路的平纵线形组合,最终得出两侧拼宽为主,局部路段中分带偏移的施工方案,能够有效提升公路的上坡通行能力,降低下坡时的风险隐患概率。

Based on the reconstruction and expansion project of Jinan-Taian section of Beijing-Taipei expressway, the paper studies the combination of the horizontal and vertical alignment of different types of highways. The construction plan that widening the two sides is mainly used, and the center medial is offset in the partial road section is finally identified,which can effectively improve the uphill traffic capacity and reduce downhill risk probability on the highway.