Based on the underwater pier construction of the Qujiang Extra Large Bridge's low tower cable-stayed bridge,the cofferdam construction plan is optimized.The construction technology scheme of"island building+locking pile cofferdam"is proposed.The construction of the island platform was carried out first,followed by the construction of the locking steel pipe pile cofferdam,which successfully solved the problem of difficult underwater construction and the inability to synchronize the construction of bridge piles,locking pile cofferdams,and overpasses,effectively shortening the construction period.The construction process of using pre drilled holes to insert locking steel pipe piles has solved the problem of inserting locking steel pipe piles into rocks.
关键词
筑岛/锁扣钢管桩围堰/水中墩/施工方案/优化
Key words
island construction/locking steel pipe pile cofferdam/water pier/construction plan/optimization
维普
万方数据