History of Frost Heave Prevention of Roads and Railway in Hokkaido

Abstract

The engineers of Hokkaido had the problem for the long time. Because there was the “Frost Heaving” that is a disaster only in the cold regions. The theory of frost heaving appearance isn't clear as yet, but in the engineering section (railway, road, etc.), it's prevention has been settled. In the case of railway, it's study was started before the World War 2 and many style of prevention was designed. Another case of road, the prevention was investigated after World War 2. In this study, the vicissitude of it's prevention was cleared, so it is the history of development of original technology against disaster cause from meteorological phenomena.