摘要
Abstract
To solve the industry challenges posed by the absence of 40m span/1,000t long-span box girder transportation and erection equipment during high-speed railway construction,an intercity railway was selected as a case study for systematic investigation into the integrated design and transformation of girder transporters,girder transporters,and bridge erection machines,based on the concepts of modular assembly,automated control,and intelligent upgrading.Through structural optimization and power adaptation modifications to the 32-meter/900-ton girder transporter,a low-cost upgrade to 40m span/1,000 t equipment was achieved.Concurrently,the YLS1000 tunnel-crossing girder transporter was innovatively developed,utilizing low-position camelback technology and a combined steering system to overcome the transportation bottleneck for large-tonnage box girders within standard tunnels.Additionally,the complementary TJ-JQS1000/40 bridge erection machine features collaborative operation and high-precision erection capabilities,constituting a integrated transportation and erection system covering 20-40-meter spans and 1,000-ton-class box girders.This technology has been successfully deployed on multiple high-speed railway lines,demonstrating significant economic benefits,reliability,and promotional value,while providing key technical equipment support for the development of China's high-speed railway bridges toward larger spans.关键词
成套运架技术/高速铁路/搬梁机/箱梁/过隧运输Key words
integrated transportation and erection technology/high-speed railway/girder transporter/box girder/tunnel transportation分类
交通工程
