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在软土地带修筑铁路桥,由于施工条件限制,我们采用了二种特殊的桥墩结构:“桩柱塔架”及“浮筏墩”。这两种半永久性结构,造价较低,节约木材,利于快速施工。这是一个旧桥改建工程,桥址跨过一条受潮汐影响的河流,宽约100米,两岸有土堤。由于岸上地基松软,污泥层厚约10米,不宜填筑路基,也需桥构跨越,故全桥长需185.66米。
Due to the limited construction conditions, we have adopted two kinds of special pier structures: “pylons” and “floating ramps”. These two semi-permanent structure, lower cost, save timber, which will help the rapid construction. This is an old bridge reconstruction project, the bridge site across a river affected by tides, a width of 100 meters, embankment banks. As the soft foundation on the shore, the sludge layer thickness of about 10 meters, should not fill the roadbed, but also to bridge over, so the full bridge length 185.66 meters.