Development of the Gravel Cement Compaction Pile Method

doi:10.3850/GI073

Development of the Gravel Cement Compaction Pile Method

Hirochika Hayashi^1,a, Satoshi Nishimoto^1,b, Yoshihiro Kogai^2,a, Noriyuki Hashimoto^2,b and Kiyotaka Idoguchi^2,c

¹Civil Engineering Research Institute for Cold Region (CERI), 1-3 Hiragishi Toyohira-ku, Sapporo, Hokkaido, 062-8602, Japan.

^ahayashi@ceri.go.jp ^bnishimoto@ceri.go.jp

²Hokkaido Branch, Fudo Tetra Corporation, 8 North7 West2 kita-ku, Sapporo, Hokkaido, 060-0807, Japan.

^a yoshihiro.kogai@fudotetra.co.jp ^bnoriyuki.hashimoto@fudotetra.co.jp ^ckiyotaka.idoguchi@fudotetra.co.jp

ABSTRACT

This paper describes the development of the gravel cement compaction pile method (GCCP method) and the results of its test application. The GCCP method, which can produce improved columns that are high in strength, was developed as a cost effective ground improvement technique. This technique uses the construction machinery for the sand compaction pile method to produce improved columns through the compaction of a mixture of gravel (crushed-stone) and cement slurry.

Keywords: Gravel cement compaction pile; test construction; strength.

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Development of the Gravel Cement Compaction Pile Method

Hirochika Hayashi1,a, Satoshi Nishimoto1,b, Yoshihiro Kogai2,a, Noriyuki Hashimoto2,b and Kiyotaka Idoguchi2,c

1Civil Engineering Research Institute for Cold Region (CERI), 1-3 Hiragishi Toyohira-ku, Sapporo, Hokkaido, 062-8602, Japan.

2Hokkaido Branch, Fudo Tetra Corporation, 8 North7 West2 kita-ku, Sapporo, Hokkaido, 060-0807, Japan.

ABSTRACT

Hirochika Hayashi^1,a, Satoshi Nishimoto^1,b, Yoshihiro Kogai^2,a, Noriyuki Hashimoto^2,b and Kiyotaka Idoguchi^2,c

¹Civil Engineering Research Institute for Cold Region (CERI), 1-3 Hiragishi Toyohira-ku, Sapporo, Hokkaido, 062-8602, Japan.

²Hokkaido Branch, Fudo Tetra Corporation, 8 North7 West2 kita-ku, Sapporo, Hokkaido, 060-0807, Japan.