特殊环境下上跨铁路高架桥关键技术应用研究  

The application of Key Technologies to Over-crossing Railway Viaduct in Special Environment

作　　者：赵文聘[1] 

机构地区：[1]中铁第一勘察设计院集团有限公司,西安710043

出　　处：《铁道标准设计》2015年第4期58-62,共5页Railway Standard Design

摘　　要：结合嘉闵高架路(春申铁路段)工程设计实例,详细介绍嘉闵高架路(春申铁路段)工程的桥型选择、孔跨布置以及采用的实施"北竹港河道下穿既有沪春铁路扩孔工程+北竹港河中筑岛"方案、"沪杭客运专线两侧桥墩钢盖梁方案"、"桥梁关键施工工艺预设计"、"既有百年低高度T梁桥套箱改造成框架桥方案"及"沪杭客运专线特大桥桥墩承台近距离框架桥基坑围护方案"等关键技术。With reference to the design of Jia-Min viaduct （ Chun-Shen section） , this paper addresses the key technologies employed in Jia-Min viaduct （ Chun-Shen section ） , including the selection of bridge-type, the span layout, “Expansion engineering of Beizhugang river-way underpass the existing Hu-Chun railway, building island in Beizhugang river”,“Steel bent cap girder on both side of Hu-hang passenger dedicated line”,“Presupposed design of key bridge construction technology”,”Transformation of the existing low height T beam bridge jacket box into frame bridge” and “Close range foundation pit enclosure of pier and pile cap on Hu-hang passenger dedicated lines”.

关 键 词：嘉闵高架路 高架桥 框架桥 基坑围护 

分 类 号：U448.13[建筑科学—桥梁与隧道工程]