我が国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 Japanese foundation technology. The first cast-in-place concrete pile was compressole pile imported from France in 1907. The compressole pile was formed by dropping a hammer on the casted concrete in an excavated hole. Those piles installed at those days still exist in a number of historical buildings during more than 100 years. Following the compressole pile, abbot pile was introduced from the United States in 1910. The abbot pile is same manner to compressole pile, but using a casing tube to make a drilled hole.