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桥隧连接条件箱梁的架设主要采用架桥机来完成。在架设过程中,整孔箱梁在桥隧连接段的架设一直是箱梁架设的难点和重点,主要是由于:架桥机和运梁设备无法通过隧道;桥隧近距离相接时桥梁边跨无法架设;有时为了架桥机通行隧道,需要采用分离式架桥机,而分离式架桥机的拆除和安装费时费力,劳动强度又很大,延误工期等。桥隧连接条件下,箱梁的施工方法需要根据现场的各种原始信息以及各种处理方案,综合比较后确定。
Bridge and tunnel connection conditions Erection of the main girder used to complete the bridge machine. In the erection process, the erection of the whole box girder in the connecting section of the bridge and tunnel has always been the difficulty and emphasis of the girder erection, which is mainly due to the inability of the erecting machine and the girder to pass through the tunnel; Cross can not be erected; sometimes in order to bridge machine tunnels, the need for the use of separate bridge machine, and separate bridge machine removal and installation time-consuming laborious, labor-intensive and delay the construction period. Under the condition of bridge and tunnel connection, the construction method of box girder needs to be determined according to all kinds of original information of the site and various treatment plans after comprehensive comparison.