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前言日本是一个被海洋包围的岛国,为了发展社会经济,沿岸海域空间的开发利用,成为日本国土综合开发利用的重要的一环。各种各样的海洋建筑物已经和正在计划建设中。和陆上建筑相比较,海洋钢结构有着相当严酷的腐蚀环境。根据日本资料,图1。示出了距海的距离与大气中盐份的含量、金属腐蚀量的关系。从图可知,在距海岸线大约200米处,腐蚀激剧增加。因此,确保海洋钢结构的长期耐久性,确定相应的防腐蚀措施,就成为海洋开发利用计划中的一个不可缺少的部分。
Foreword Japan is an island nation surrounded by oceans. In order to develop its social economy, the development and utilization of the coastal sea space has become an important part of Japan’s comprehensive development and utilization of its territory. A variety of marine buildings are already under construction and under construction. Compared with onshore construction, marine steel structures have a rather harsh corrosive environment. According to the Japanese data, Figure 1. Shows the distance from the sea and the atmosphere of salt content, the relationship between the amount of metal corrosion. It can be seen from the figure that the erosion increased sharply about 200 meters from the coastline. Therefore, to ensure the long-term durability of offshore steel structures and to identify corresponding anti-corrosion measures has become an indispensable part of the marine development and utilization plan.