道路における盛土構造物の変化・変遷(<小特集テーマ>土構造物の変化・変遷) [in Japanese] Transition of the Earth Structures in Expressway(Theme: Technological and Historical Changes of Earth Structure) [in Japanese]
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The earthworks of expressways have been built by applying the new knowledge that experienced at the construction sites. In the Meishin Expressway construction, i.e. the first expressway in Japan, various problems had been verified by using in-situ trial, e.g. experimental embankment. The basic techniques of the expressway earthworks have been established, repeating through trial and error. In this paper, changes of the earth structures in expressway, especially on the execution control is introduced described in detail.