A Study on Soil Corrosion of Steel Pipe Piles in Coastal Region

Abstract

In-service periods of some among the facilities in coastal region have already passed the years of endurance, so that, especially, the deterioration assessment of foundation structures which bear the upper structures has become an important subject. In case of steel structures, the main evaluation factor is soil corrosion, but the actual state of soil corrosion in coastal region is not confirmed yet.
In this paper, we investigated the corrosion data of steel piles, and conducted a few experiments to obtain the basic data of soil corrosion. As the results of these experiments which were simulated the changing of ground water level, we confirmed that the corrosion rate becomes very high when the soil has good aeration.