海岸带环境过程实验室知识库

(1) 中国科学院烟台海岸带研究所

In view of serious corrosion in typical coastal cities, taking Yantai as an example, we made a corrosion survey concerning the corrosion status of 40 bridges, 3 ports and wharfs, 12 municipal pipe network units, 13 industrial enterprises and 20 tourism and entertainment units in the city of Yantai by means of questionnaire survey and field survey. The data related with corrosion and protection status of 88 investigation objects were obtained, and it was found that the corrosion events were serious in various industrial fields of Yantai. The general status of corrosion issue in the city is seriously that, reinforced concrete structures all suffered from corrosion of diversified types, such as surface voids and pits, cracks, rust spots, exposed reinforcing bars, corrosion cracking and so on. Steel structures also suffered from corrosion of different severities, such as damages or thinning of protective coatings and corrosion induced leakage points etc. With the Hoar method, the annual corrosion cost of Yantai city was estimated to be 2,354,336.4 ten-thousand RMB, accounting for 3.9% of the national gross domestic product.

针对典型海岸带城市的腐蚀问题,本工作以烟台为例进行了调查。采用问卷调查与实地调查相结合的方法,对该市40座桥梁、3个港口码头、12家市政管网单位、13家工业企业、20个旅游娱乐单位进行腐蚀状况调查。调查共取得了88个调查对象的腐蚀及防护状况数据,表明烟台各行业领域的腐蚀现象严重:钢筋混凝土结构均出现不同程度的蜂窝麻面、裂缝、锈斑、脱落漏筋、锈胀开裂等现象;钢结构设施也存在不同程度的锈蚀,防护漆漆膜变薄或破损,有腐蚀漏点检出。运用Hoar法估算了烟台市的年腐蚀损失约为2,354,336.4万元,占国民经济总值的3.9%。