深中通道东人工岛内高速桥墩保护钢管桩施工研究
Construction Study of Steel Pipe Piles in Protection of Highway Bridge Piers in the East Artificial Island of Shen-Zhong Passage
刘坤 1李云超 1祝阿龙 1侯禹辰 1熊昊翔 2尚世力 3谈颋4
作者信息
- 1. 中铁隧道集团三处有限公司,广东深圳 518000
- 2. 深中通道管理中心,广东中山 528400;中山大学土木工程学院,南方海洋科学与工程广东省实验室(珠海),广东珠海 519082
- 3. 珠海科技学院,广东珠海 519000;中山大学土木工程学院,南方海洋科学与工程广东省实验室(珠海),广东珠海 519082
- 4. 中山大学土木工程学院,南方海洋科学与工程广东省实验室(珠海),广东珠海 519082
- 折叠
摘要
深中通道东人工岛基坑围护结构距离岛内桥梁承台最近只有1.27 m.该沿江高速桥梁允许沉降量仅 10 mm,允许侧向位移6 mm,基坑开挖深度达14.75 m.因此,采用钢管桩对该高速桥中某些桥墩进行保护.论文以该高速桥的 72号桥墩保护钢管桩的施工为例,对近海环境下桥墩保护钢管桩的施工过程及特点进行分析研究.
Abstract
The impact from construction of deep foundation pits on the surrounding highway bridges is important.During the construction of Shen-Zhong link,the nearest distance between the enclosure protection to the bridge platform is only 1.27 m.The maximum excavation depth reached 14.75 m,during which the allowable settlement of highway bridges is 10mm and the allowable lateral displacement is 6 mm.Therefore,steel piles were used to protect part of the highway bridge piers.In this paper,the construction of No.72 pier protection steel pile is investigated for the characteristic construction process in offshore environment.
关键词
高速桥梁/桥墩保护/钢管桩/免共振振动锤施工Key words
highway bridge/bridge abutment protection/steel pipe pile/resonance-free vibratory hammer construction引用本文复制引用
出版年
2023
NETL
NSTL
维普
万方数据