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珠海大桥国航道桥为箱根连续梁和钻孔灌注桩基础，考虑桥梁宽度大，横桥向采用两个独立的单宝箱梁，文中针对宽桥介绍了上下部设计概况．
The Zhuhai bridge is the basis of Hakone continuous beam and bored pile. Considering the large bridge width and two independent single treasure beam in the transverse bridge direction, the paper introduces the general design of the upper and lower parts of the bridge.