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1 前言 随着我国工业建设的发展,埋入地下的油、气、水管道、电缆、铁塔、钢桩以及其它各种地下金属结构日益增多,这对土壤腐蚀与防护工作提出了新的要求。土壤是一个非常复杂的体系,影响土壤中金属腐蚀的因素很多。我国幅员广大,土壤的理化性质在各个地区差别很大。为了解各地土壤中金属腐蚀的情况,进行了众多的埋片试验,花费了大量的人力物力,为了更详细地了解各地区土壤中金属腐蚀的情况,要预测地下金属结构的使用寿命以及制定相应的防腐计划,
1 Introduction With the development of industrial construction in our country, the underground oil, gas, water pipelines, cables, towers, steel piles and other various underground metal structures are increasing day by day, which puts forward new requirements for soil erosion and protection work. Soil is a very complex system and there are many factors affecting the corrosion of metals in the soil. The vastness of our country, the physical and chemical properties of the soil vary greatly in all regions. In order to understand the situation of metal corrosion in soil all over the country, many embedding tests were carried out and a lot of manpower and material resources were spent. In order to understand the metal corrosion in soil in various regions in detail, the service life of underground metal structures should be predicted and correspondingly formulated Anti-corrosion plan,