几内亚西芒杜矿区40t轴重重载铁路桥涵设计  

Design of Bridge and Culvert for a 40t Axle Load Heavy Haul Railway in Simandou Mining Area,Guinea

作　　者：张毅 ZHANG Yi(China Railway Engineering Design Consulting Group Co.,Ltd.,Beijing 100071,China)

机构地区：[1]中铁工程设计咨询集团有限公司,北京100071

出　　处：《价值工程》2023年第10期112-114,共3页Value Engineering

摘　　要：重载铁路运输是当今货物运输发展的主要方向。几内亚马瑞巴亚港至西芒杜矿区铁路专用线运行轴重40t矿石车,其设计活载已超出了我国现行设计规范的规定。结合几内亚马瑞巴亚港至西芒杜矿区铁路专用线的特点,在调查研究国内外重载铁路桥涵设计的基础上,提出并计算验证了适用于40t轴重的梁、下部结构及涵洞的设计限值和结构形式。Heavy haul railway transportation is the main direction of freight transportation development today.The special railway line from Guinea's Port of Maribaya to Simandou mining area operates with an axle load of 40t,and its design live load has exceeded the provisions of current design specifications in China.Based on the investigation and research of the design of bridges and culverts for heavy haul railways at home and abroad,the design limits and structural forms of beams,substructures,and culverts suitable for 40t axle loads are proposed and verified by calculation in combination with the characteristics of the railway dedicated line from the Port of Maribaya to Simandou Mining Area in Guinea.

关 键 词：重载铁路 40t轴重 桥涵 梁 下部结构 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]