Cost reduction of diaphragm wall excavation using air foam and case record

Hirokazu Akagi, Yoshimasa Kondo, Takashi Nakayama, Hisanaga Naos

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

A novel stabilizing liquid using air foam rather than bentonite clay slurry, i.e. an air foam suspension method, was employed in order to stabilize the trench wall surface during a diaphragm wall excavation. This method reduces the construction costs of working on an underground diaphragm wall. An air foam suspension is created by mixing excavated soil with air foam made from a surfactant. The performance of the air foam suspension depends on its density and consistency, that is, its table flow value (TF). By comparing the trench stabilization capacity of an air foam suspension with that of bentonite clay slurry in model tests, the performance of air foam suspension was confirmed. A cost evaluation of the use of air foam suspension for diaphragm wall excavation is presented with an actual trial construction case record, which shows the superiority of air foam suspension to bentonite clay slurry as a stabilizing liquid.

本文言語English
ホスト出版物のタイトル5th ICEG Environmental Geotechnics
ホスト出版物のサブタイトルOpportunities, Challenges and Responsibilities for Environmental Geotechnics - Proceedings of the ISSMGE 5th Int. Congress
ページ685-692
ページ数8
出版ステータスPublished - 2006 12 1
イベント5th ICEG Environmental Geotechnics: Opportunities, Challenges and Responsibilities for Environmental Geotechnics - International Society of Soil Mechanics and Geotechnical Engineering's (ISSMGE) 5th International Congress - Cardiff, Wales, United Kingdom
継続期間: 2006 6 262006 6 30

出版物シリーズ

名前5th ICEG Environmental Geotechnics: Opportunities, Challenges and Responsibilities for Environmental Geotechnics - Proceedings of the ISSMGE 5th Int. Congress
I

Conference

Conference5th ICEG Environmental Geotechnics: Opportunities, Challenges and Responsibilities for Environmental Geotechnics - International Society of Soil Mechanics and Geotechnical Engineering's (ISSMGE) 5th International Congress
国/地域United Kingdom
CityCardiff, Wales
Period06/6/2606/6/30

ASJC Scopus subject areas

  • 地盤工学および土木地質学
  • 土木構造工学
  • 環境工学
  • 廃棄物管理と処理

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