桩基和承台水下施工方法分析

Analysis of underwater construction method of pile foundation and cap

黄大线黄河特大桥位于山东省东北部,黄河下游鲁北平原区,距离黄河入海口约100~120km,地势向东北微倾斜,总体较平缓。线路在山东省东营市西北的利津县附近跨越黄河。主桥全长1183.34m,跨河主桥一联(120+4 x 180+120)m连续钢桁梁施工,以及跨越黄河大堤引桥两孔108m钢桁梁施工。主桥有4个主墩在主河道内,其它分别位于黄河左岸和右岸的漫滩中。本文重点分析水中桩基和承台施工方法。

The Yellow River bridge is located in the northeast of shandong province ang the Lubei plain in the lower reaches of the Yellow River.It is about 100-120km away from the mouth of the Yellow River.The terrain slightly inclined to the northeast,the overall relatively gentle.The bridge crosses the Yellow River near lijin county,northwest of dongying city,shandong province.The total length of the main bridge is 1,183.34 m.One main Continuous steel girder bridge across the river(120+4X 180+120m).Two hole 108m steel truss beam across the Yellow River dykes approach bridge.The main bridge has four main piers in the channel.The others are located in the floodplain on the left and right bank of the Yellow River respectively.This paper focuses on the analysis of pile foundation and cap construction methods in water.