野三河特大桥群桩挖孔施工

The group piles excavation construction of Yesan river super large Bridge

针对野三河特大桥桥址地形地质复杂,施工难度大等特点,介绍了陡坡群桩挖孔施工中采取的先期坡体防护,开挖承台基坑,相邻桩基施工等合理施工技术措施及弱爆破参数设计,为同类工程积累了施工经验。

Against to the characteristics that the bridge site,landform and geology of Yesan river super large Bridge were complex and the construction difficult was large,the rational construction measures and weak blasting parameters design of the pre slope body protection,excavating cushion cap foundation,adjacent pile foundation construction adopted in steep slope group pile construction were introduced,which accumulated construction experience for the similar engineering.