The Deepwater Drilling Platform New Construction Technology

摘要

The Second Danjiangkou Bridge is a continuous, four-span, pre-stressed concrete box bridge with continuously mutative sections. The foundation of the second main pier is constructed in water and the depth of water exceeds 40 meters, made up of nine drilled and casting in place concrete piles. The diameters of the piles are two meters. The paper presents some new construction technology of drilling platform in pile foundation of the second main pier.