摘要
依托某跨河桥梁深水基础施工,针对该桥址处复杂的地质、气候及水文条件,对双壁钢围堰、放坡开挖双壁钢围堰、锁扣钢管桩围堰3种方案的结构构造、围堰布置型式、施工方法及其优缺点展开研究,并从工期、成本、安全风险、技术风险等方面进行综合比选,最终从成本和可行性方面考量,认为3种方案中,放坡开挖双壁钢围堰方案最优。
Relying on a deep-water foundation construction of river-crossing bridge,in view of the bridge in the complex geology,climate and hydrological conditions,the structure constructions,cofferdam arrangement types,construction methods,advantages and disadvantages of three schemes of double-wall steel cofferdam,double-wall steel cofferdam by slope excavation and locking steel pipe pile cofferdam structure are studied.And the comprehensive comparison is carried out from the aspects of construction period,cost,safety risk and technological risk.Finally by considering the cost and the feasibility,the scheme of double-wall steel cofferdam by slope excavation is the best in three schemes.
作者
王军舰
刘均儒
WANG Junjian;LIU Junru
出处
《城市道桥与防洪》
2021年第11期130-133,M0013,共5页
Urban Roads Bridges & Flood Control
关键词
深水
基础
双壁钢围堰
锁扣钢管桩围堰
deep water
foundation
double-wall steel cofferdam
locking steel pipe pile cofferdam
