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目前国内铁路既有线施工将运营安全放在首位,对既有线封锁施工的审批谨之又慎。顶进施工特别是线路加固时需要大量封锁点,对铁路运输造成极大损失。为加快施工进度,节约成本,实现设计意图,经过讨论,决定采用泥水平衡式顶管进行施工,在既有线车站水管路顶进施工中没有类似工程经验可以借鉴。
At present, the construction of both domestic and international railways places operational safety in the first place and the approval of the existing line blockade construction is very cautious. The jacking construction, especially for the reinforcement of the lines, requires a large number of blocking points, which causes great losses to the railway transportation. In order to speed up construction progress, save costs and achieve design intent, after discussion, it is decided to adopt slurry-balanced pipe jacking for construction. There is no similar project experience in jacking construction of water pipe line of existing railway station.