临沂G518快速化改造设计思路  

Design concepts for the rapid reconstruction of Linyi 518 national highway

作　　者：郑逢时 ZHENG Fengshi(Linyi Highway Survey and Design Institute Co.,Ltd.,Linyi 276000,China)

机构地区：[1]临沂市公路勘察设计院有限公司,山东临沂276000

出　　处：《四川建材》2025年第4期195-199,共5页Sichuan Building Materials

摘　　要：多省已经实施对部分国省道进行快速改造,但大都采用城市快速路的设计标准,而对于一级公路快速化改造的技术指标或规程尚无国标依据。以山东临沂G518日定线(临沂日照界至长深高速临沂东互通立交段)快速化改造为例,从路网功能、地位与作用的角度,结合交通量预测结果因素,探讨一级快速化公路试验段的段落选择、主要技术标准的确定方法,并介绍交叉设计方案、分析改建公路与老路的适应性、停车区及养护工区的设置原则,可供相关工程参考。At present,many provinces in China have implemented rapid reconstruction of some national and provincial roads,but most of them have adopted the design standards of urban expressways,and there is no national standard basis for the technical indicators or procedures of rapid reconstruction of first-class highway.Taking Linyi 518 national highway(Linyi-Rizhao boundary to Linyi East Interchange section of Changshen Expressway)as an example,and from the perspective of road network function,status,and role,combined with factors of traffic volume prediction results,explores the selection of sections and the determination of main technical standards for the experimental section of the first-class rapid highway.It also introduces the intersection design scheme,analyzes the adaptability of the reconstructed highway and the old road,the principles for setting up parking bays and maintenance areas,which can be used as reference for related projects.

关 键 词：公路快速化 老路改造 交叉设计 停车区 养护工区 设计思路 

分 类 号：TU984.191[建筑科学—城市规划与设计] U418.8[交通运输工程—道路与铁道工程]