摘要
随着我国城市建设的快速发展,高铁路网建设越来越密集,市政桥梁与高速铁路交叉或并行的情况也越来越多,造成诸多公路交通建设项目需要上跨高速铁路或者与高速铁路并行施工,紧邻运营铁路施工对既有高铁运营安全控制显得尤为重要。廊坊市交通中心工程光明桥因紧邻运营高铁建设施工,创新采用“异位拼装,横移就位”施工工艺,将钢桁梁由原设计位置向远离高铁方向外移一定距离进行拼装作业,拉开桥梁与高铁的间距,拼装结束后,将钢桁梁再向高铁线路侧整体横移至设计位置。通过钢桁梁桥异位拼装横移施工技术的应用,保障了钢桁梁拼装、横移过程的安全及工程质量,确保既有铁路线路及设施安全。
With the rapid development of China’s urban construction, the construction of high-speed railway network is becoming more and more intensive, and there are more and more municipal bridges crossing or parallel with high-speed railway. As a result, many highway traffic construction projects need to cross the high-speed railway or construct in parallel with the high-speed railway. The construction close to the operating railway is particularly important for the operation safety control of the existing high-speed railway. Guangming Bridge of Langfang transportation center project is adjacent to the construction of high-speed railway. The construction process of “ectopic assembly and transverse movement in place” is innovatively adopted to move the steel truss beam from the original design position to a certain distance away from the high-speed railway for assembly operation, and keep the distance between the bridge and the high-speed railway. After assembly, move the steel truss beam to the high-speed railway line side to the design position as a whole. Through the application of ectopic assembly and transverse movement construction technology of steel truss bridge, the safety and engineering quality of steel truss beam assembly and transverse movement process are guaranteed, and the safety of existing railway lines and facilities is ensured.
作者
孙爱田
SUN Aitian(Beijing Railway Construction Co.,Ltd.,China Railway Sixth Engineering Bureau Group,Beijing 100036,China)
出处
《施工技术（中英文）》
CAS
2022年第7期140-145,共6页
Construction Technology
基金
2021年中铁六局集团有限公司重点科研课题:上跨高速铁路钢桁梁平纵移双转体施工技术研究(2021-1-A01)。
关键词
桥梁
钢桁梁
异位拼装
横移
施工技术
bridges
steel truss beam
heterotopic assembly
transverse
construction
