暴露80年的砼防波堤的现状及使用年限评估  

PRESENT CONDITIONS OF CONCRETE JETTY AFTER BEING EXPOSED FOR 80 YEARS AND THE APPRAISAL OF ITS SERVICE LIFE

作　　者：胡玉初[1] 吴绍章[1] 鹿立云[1] 

机构地区：[1]南京水利科学研究院,南京210024

出　　处：《海岸工程》1992年第3期1-8,共8页Coastal Engineering

摘　　要：建于本世纪初的吴淞导堤,经数十年的使用,现拟加固,以适应近期上海运输的需要。安放在导堤上的砼方块已经历80a 的天然暴露,留存于堤上的有4516块,为尽量利用这些块体,需对其破坏情况作出检查。通过现场外观评定、钻取砼芯样、超声测量、砼核子密度仪检测及化学分析等手段,对其现在质地作了较系统的检查,并据此作了评估,提出了修复方案,可供修复设计及施工时参考。The Wusong Jetty constructed at the beginning of this century,now is to be improved after being used for decades,in order to satisfy the recent requi- rement of transportation in Shanghai.The Concrete blocks installed on the jetty have been exposed in nature for 80 years,and now there are totally 4516 blocks on the jetty.To make full use of these blocks,the condition of blocks damage should be inspected.The status quo of blocks is systematically inspected in situ through outward appearance examination,concrete core-drilling,ultra- sonic detection,nuclear densimeter inspection on concrete and chemical anal- ysis.Based on these results,appraisal are carried out and reparation plan is put forward,which can be taken for reference in reparation design and construction.

关 键 词：混凝土 防波堤 使用年限 评估 

分 类 号：U656.2[交通运输工程—港口、海岸及近海工程]