挡浪墙顶预留沉降量设定方法  

Setting method of reserved settlement on top of wave retaining wall

作　　者：唐云[1] 王四根[1] TANG Yun;WANG Si-gen(CCCC-FHDI Engineering Co.,Ltd.,Guangzhou 510230,China)

机构地区：[1]中交第四航务工程勘察设计院有限公司,广东广州510230

出　　处：《水运工程》2020年第3期50-54,91,共6页Port & Waterway Engineering

摘　　要：针对软土地基上的护岸交工时挡浪墙顶预留沉降量不易准确设定的问题,以小虎岛石化码头一期工程护岸挡浪墙为研究对象,基于护岸典型段浇筑后数月沉降观测数据,采用双曲线法和三点法推算工后沉降。结果表明,三点法受加载不规律、地下水位变化等各种因素的影响,实测沉降曲线往往不够平滑,导致选点不易,误差较难控制,推算结果易出现异常;双曲线法则相对更为简便,数据处理简单,易于现场应用和推广;采用双曲线法的推算结果并结合理论计算值来设定挡浪墙预留沉降量较为合理、可靠。Aiming at the problem that it is difficult to accurately set the reserved settlement on the top of the wave retaining wall when the revetment on soft soil foundation is completed,we take the revetment of Xiaohudao petrochemical wharf phase I project as the research object,and use the hyperbolic method and the three-point method to calculate the post-construction settlement based on several months’ settlement observation data of typical revetment sections. The results show that the three-point method is affected by various factors such as irregular loading and variation of groundwater level,and the measured settlement curve is often not smooth enough,which leads to difficult selection of points,difficult control of errors and abnormal calculation results. The hyperbolic method is relatively simple,and the data processing is simple,which is easy to be applied and promoted on site.It is more reasonable and reliable that using the calculation results by the hyperbolic method and the theoretical calculations to set the reserved settlement of the wave retaining wall.

关 键 词：挡浪墙顶 预留沉降 工后沉降 双曲线法 三点法 

分 类 号：U656.3[交通运输工程—港口、海岸及近海工程]