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桥位设计必须对所在河段的形态特征、稳定与变形程度有充分的认识后,才有可能选择出一个好的桥位,合理地布设桥孔,正确地确定墩台埋置深度,布设桥头引道及必要的调治建筑物等,从技术和经济上确定恰当的建桥方案. 通过对全国各地区的桥孔调查研究,我们深刻地体会到布设一个合适的桥孔,不仅可以满足排水、输沙的需要,而且可以起到整治河道的作用,使河岸趋向稳定,有利于桥梁安全和工农业生产.
Bridge site design must have a sufficient understanding of the shape, stability and deformation of the river where it is located, so that it is possible to choose a good bridge site, rationally layout the bridge openings, correctly determine the depth of piers and piles, and lay the bridgehead Road and the necessary control of buildings, etc., from the technical and economic to determine the appropriate bridge construction.By the bridge across the country survey, we deeply appreciate the layout of a suitable bridge hole, not only to meet the drainage, sediment transport Need, and can play the role of river regulation, so that the river bank tends to be stable, is conducive to bridge safety and industrial and agricultural production.