都昌至九江高速公路路基设计特点及难点分析  

Characteristics and Difficulties Analysis of Subgrade Design of Duchang to Jiujiang Expressway

作　　者：谢志惠 余少华 XIE Zhi-hui;YU Shao-hua(Shangrao Yiyang Highway Development Center,Shangrao,Jiangxi 334400,China;Jiangxi Communications Design and Research Institute Co.,Ltd.,Nanchang,Jiangxi,330000,China)

机构地区：[1]上饶市弋阳公路事业发展中心,江西上饶334400 [2]江西省交通设计研究院有限责任公司,江西南昌330000

出　　处：《黑龙江交通科技》2023年第12期20-22,共3页Communications Science and Technology Heilongjiang

摘　　要：为解决都昌至九江高速公路路基设计存在的难点,提升路基的整体设计效果,对都昌至九江高速公路路基设计特点及难点作出定向分析。通过工程简介了解路段基本情况,针对复合式路基搭接形式、路基边坡拟合设计以及上承下实沉降防护台设计进行路基设计特点探析。从新旧路基加宽拼接处理混乱上分析路基的构建方向,同时,对于立体交叉铺装困难、过度沉降及路基排水问题等施工难点进行重点剖析,进一步完善、优化该路段路基设计方案,为后续施工建设奠定更为坚实的基础。In order to solve the difficulties in the subgrade design of the Duchang to Jiujiang Expressway section and improve the overall design effect of the subgrade,a directional analysis is made on the design characteristics and difficulties of the Duchang to Jiujiang Expressway subgrade.The basic situation of the road section is understood through the project introduction,and the design characteristics of the roadbed are analyzed according to the overlapping form of the composite roadbed,the fitting design of the roadbed slope,and the design of the upper bearing and the lower solid settlement protection platform.The construction direction of the subgrade is analyzed from the confusion of the new and old subgrade widening and splicing.At the same time,the construction difficulties such as the difficulty of three-dimensional intersection paving,transitional settlement and subgrade drainage are analyzed,so as to further improve and optimize the subgrade design scheme of this road section,to lay a more solid foundation for subsequent construction.

关 键 词：路基特点 公路结构 拼接处理 

分 类 号：U416.02[交通运输工程—道路与铁道工程]