欧米における場所打ちコンクリート杭の黎明期の施工法に関する調査

抄録

This paper describes the development of cast-in-place concrete piles at the dawn of foundation technology in Europe and the United States. The first cast-in-place concrete pile was the compressol pile invented in France around 1897. Around 1900, Raymond piles, simplex piles, and pedestal piles were invented in the U.S. Around 1910, franki piles were invented in Belgium. These piles have been installed not only in their home country but also in other parts of the world; more than 100 years later, they still support many historical buildings.