满足客运专线预制梁通行的隧道扩孔研究

Besearch on the Broadened Tunnel for Satisfying the Transit of Precast Beams on Passenger Dedicated Line

研究目的:根据哈大客运专线施工组织安排,大连附近的2座短隧道断面因通行运梁车而需扩孔,因此需要对扩孔隧道断面内轮廓的确定及施工工艺进行深入研究,以解决扩孔隧道的设计施工的关键技术问题。研究结果:针对国内客运专线隧道工程首次考虑运梁车通行的工程需要,探索出了一条有针对性的扩孔隧道设计施工思路。

Research purposes:According to the construction organization arrangement of Ha-Da passenger dedicated line,two short tunnels need be broadened because of passing the carrying beams trains.So we have carried on a thorough research for ascertaining the cross-section inside outline of the special line for passenger train and the construction arts and crafts for resolving the key technique problem of the design and construction of the broadened tunnel. Research results:Aiming at the engineering demand that the ...