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成绵乐铁路工程六标金马河特大桥上跨成雅高速公路,由于成雅高速公路为318国道和108国道共用段,是通往云南和西藏的主要通道,也是西部大开发的交通主干线之一,车流量日均高达4万车次,这给金马河特大桥的上部结构现浇箱梁施工带来了诸多困难。重点介绍上跨现浇箱梁施工时贝雷型钢、钢管桩门洞通道搭设、拆除期间与交管部门共同组织协调交通安全维护措施等。
Chengdu-Mianle railway engineering six standard Jinma River Bridge across the Cheng Ya highway, due to the Cheng-Ya Expressway for the 318 National Road and the 108 National Road shared section, is leading to Yunnan and Tibet’s main thoroughfare, is also the western development of the main trunk line First, the daily traffic volume is as high as 40,000 trips, which brings many difficulties to the construction of the superstructure cast-in-place box girder of the Jinma River Bridge. Focusing on the construction of Beilibei steel and steel pipe pile tunnel passage on the construction of on-site cast-in-place box girder, and jointly organizing and coordinating traffic safety and maintenance measures with the traffic control department during the demolition.