摘要
分析堰筑隧道工程特点及典型案例,重点关注结构设计方面存在的问题,从减小堰筑隧道埋深的措施和高水头深埋大跨结构处理等角度,进行堰筑隧道结构断面形式比选,提出“折板拱+仰拱”的组合断面形式。以某堰筑隧道工程为例,对比分析隧道结构采用“折板拱+仰拱”组合断面形式的合理性。结论可为类似隧道结构断面设计提供参考。
The engineering characteristics and typical cases,as well as the problems existing in the structural design of the cofferdam tunnel are analyzed in the project.The comparison of the structural section types of the cofferdam tunnel is discussed from the measures to reduce the buried depth and the treatment of the high head deep buried long-span structure of the cofferdam tunnel,a new section type of“folded plate arch and inverted arch”is proposed.Taking a cofferdam tunnel project as an example,the rationality of adopting“folded plate arch and inverted arch”section type in tunnel structure is calculated and compared.The conclusion can provide references for similar tunnel structure section design.
作者
孙统立
方忠强
SUN Tongli;FANG Zhongqiang(China Design Group Co.,Ltd.,Nanjing 210014,China;Research and Development Center of Transport Industry of Technologies and Equipments for Intelligent Design,Construction and Maintenance of Underwater Tunnel,Ministry of Transport,Nanjing 210014,China)
出处
《现代交通技术》
2022年第3期69-73,共5页
Modern Transportation Technology
基金
江苏省交通运输科技项目(2019Y22)。
关键词
堰筑隧道
折板拱加仰拱断面
结构设计
cofferdam tunnel
folded plate arch and inverted arch section
structural design
