龙潭长江大桥北锚碇设计与施工  

Design and Construction of the North Anchorage of Longtan Yangtze River Bridge

作　　者：胡川开 HU Chuan-kai(China Design Group Co.Ltd.,Nanjing 210014,China)

机构地区：[1]华设设计集团股份有限公司,南京210014

出　　处：《工程建设与设计》2024年第3期86-88,共3页Construction & Design for Engineering

摘　　要：以龙潭长江大桥为工程背景,介绍了北锚碇构造设计、结构分析与施工方案等;针对锚碇基底持力层为弱胶结含砾砂岩(半成岩),开展了现场原位深层载荷板试验及锚碇基础选型与变位研究专题,解决了半成岩地基承载力深度修正问题。成果直接应用于施工图设计,显著减小了基础规模,创造了良好的经济效益。This article takes the Longtan Yangtze River Bridge as the engineering background,introduces the structural design,structural analysis,and construction plan of the north anchorage.Considering that the anchorage basement bearing layer is weakly consolidated pebbled sandstone(semi-diagenetic),the topic ofin-situ deep load plate test and anchorage foundation selection and displacement research is carried out to solve the problem of depth correction of bearing capacity of semi-diagenetic foundation.The results are directly applied to the design of con-struction drawings,which significantly reduces the scale of foundation and creates good economic benefits.

关 键 词：锚碇 半成岩 地下连续墙 载荷板试验 设计 施工 

分 类 号：U443.37[建筑科学—桥梁与隧道工程]