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一、前言在交通——管道两用隧道中敷设管道的一个较困难的问题,是因隧道行车道板下的管沟轴向尺寸很长、横断面尺寸很小而难以设置较理想的管道补偿器。过去曾采用无补偿直线固定管道的方法将管道固定在隧道底板上,这种方法的缺点是固定墩数量多,推力大,施工复杂,造价高及管道不抗震等。为了克服上述缺点,本文推荐几种国内外使用的地上管道敷没方法,这些方法用于交通隧道中比较经济合理,同时探讨一些问题,以期对今后工程的改进有所帮助。二、隧道中的管道敷设管道经常利用隧道穿越水域,按隧道的用途可分为两种:管道专用隧道;交通——管道两用隧道。
I. INTRODUCTION One of the more difficult problems of laying pipes in traffic-pipe tunnels is that it is difficult to set up an ideal pipeline compensation due to the long axial dimension of the pipe groove under the traffic lane plate and the small cross-sectional dimension Device. In the past, non-compensating straight-line fixed pipelines were used to fix the pipelines on the tunnel floor. The disadvantages of this method are that the number of fixed piers is large, the thrust is large, the construction is complicated, the cost is high, and the pipelines are not earthquake-proofed. In order to overcome the above shortcomings, this paper recommends several domestic and international pipe laying methods, which are more economical and reasonable for traffic tunnels, and also discuss some issues in the hope of helping to improve the future projects. Second, the pipeline tunnel laying Pipelines often use the tunnel through the water, according to the use of the tunnel can be divided into two types: special tunnels; traffic - dual-pipe tunnel.