摘要
通过分析相邻互通式立交之间连接段、互通式立交与隧道之间连接段以及前后两相邻隧道之间连接段的结构特点,提出基于土建结构的高速公路桥隧连接段评价指标体系,包括变速车道长度、渐变段长度、两渐变段之间的长度、隧道口与互通式立交渐变段之间的长度以及前后相邻两隧道间距等评价指标.计算得出各指标对应不同运行速度、不同车道数以及不同交通量要求的安全值.
Abstract
By analyzing structural features of connection segments between adjacent interchanges,connection sections between interchanges and tunnels as well as connection sections between two adjacent tunnels,this paper proposes an evaluation index system for connection sections between expressway bridges and tunnels based on civil structures,including evaluation indices such as length of speed-change lanes,length of transition sections,length between two transition sections,length between tunnel portals and transition sections of interchanges as well as space between two adjacent tunnels,etc.The paper obtains the safe values of all indices corresponding to the requirements for different running speeds,different number of lanes and different traffic volumes through calculation.
基金项目
广东广珠西线高速公路有限公司广珠西线三期安全评价项目(03.SD2011B105)
国家自然科学基金(E080703)
国家自然科学基金(51008321)
同济大学道路与交通工程教育部重点实验室开放基金(201003)
NETL
NSTL
维普
万方数据