内河航道斜桩基础承台单壁钢吊箱围堰安装精度控制措施及关键技术应用  

Measures of Installation Accuracy Control and Application of Key Technology for Single-wall Steel Hanging Box Cofferdam of Batter Pile Foundation Base Slab in Inland Waterway

作　　者：刘佳 LIU Jia

机构地区：[1]上海公路桥梁(集团)有限公司,上海市200433

出　　处：《城市道桥与防洪》2020年第8期295-298,M0028,共5页Urban Roads Bridges & Flood Control

摘　　要：以黄浦江闵浦三桥工程为例,针对其主墩高桩承台所具有的桩径大、斜桩多、桩间距密等结构特点,论述了有底钢吊箱围堰设计及安装过程中的结构细节及总体流程优化、测量定位及限位装置设置等一些有效且实用的精度控制方法,并对实施过程中多种技术措施的应用及取得的成效进行阐述,可供同类桥梁工程水中墩施工参考。Taking Huangpu River Minpu Bridge III as an example,aiming at the structural characteristics of the high-pile base slab of its main pier,such as the large pile diameter,many batter piles and dense pile spacing,some effective and practical accuracy control methods of structural details and overall process optimization,surveying and positioning,and limiting device setting in the design and installation of bottomed steel hanging box cofferdam are discussed.The application of many technical measures and the achieved effects in the implementation are expounded.The reference can be provided for the similar bridge projects.

关 键 词：单壁钢吊箱 斜桩 整体安装 点云扫描 精度控制 

分 类 号：U445[建筑科学—桥梁与隧道工程]