EXPERIMENTAL STUDIES FOR PILE TIP PROTECTIONS BY USE OF JET GROUT METHOD

• WAKIYA Yasushi

  社団法人 土木学会 川崎製鉄 (株), 建材技術部

• OKI Takeshi

  社団法人 土木学会 川崎製鉄 (株), 建材技術部

• SUMI Koji

  社団法人 土木学会 (株) ジオトップ, 技術開発本部

• NUMATA Hiroaki

  社団法人 土木学会 ノザキ建工 (株), 技術部

• MORIMOTO Nobuhiro

  社団法人 土木学会 川鉄テクノコンストラクション (株), 九州支店

Bibliographic Information

Other Title

• 超高圧噴射工法による杭先端根固め方法の実験的研究
• チョウコウアツ フンシャ コウホウ ニ ヨル クイ センタン ネガタメ ホウホウ ノ ジッケンテキ ケンキュウ

Abstract

This paper describes experimental studies for pile tip protections of bored pile by use of Jet Grout Method that was developed for the ground improvement. The pile tip protections were made in the artificial sandy ground and all of them were taken out in order to investigate their strength and failure mechanism through the loading tests. The adequate mixture condition and jetting quantity of the cement slurry to get the required strength were discussed. In addition the differences of the protection shapes due to the quantity of jet water and moving speed of jet rod were examined. The equations for estimating of protection diameter were proposed and its reliability was confirmed.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 2002 (701), 155-167, 2002-03-21

  Japan Society of Civil Engineers

Keywords

• jet grout method
• pile tip grout
• water cement ratio
• in-situ experiment
• loading test
• failure mechanism

Details

• CRID: 1390282680578068864
• NII Article ID: 10008001640
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.2002.701_155
• ISSN: 18827187
• ISSN: 02897806
• NDL BIB ID: 6100706
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6100706
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/2002/701/2002_701_155/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed