Cost reduction of diaphragm wall excavation using air foam

Yoshimasa Kondo, Takashi Nakayama, Hisanaga Naoe, Hirokazu Akagi

研究成果: Conference contribution

抄録

A novel stabilizing liquid using air foam rather than bentonite clay slurry, i.e. air foam suspension, is employed in order to stabilize the trench wall surface during a diaphragm wall excavation. Air foam suspension is used to reduce the construction costs of working on an underground diaphragm wall. Air foam suspension is created by mixing the excavated soil with air foam made from a surface-active chemical agent. The performance of air foam suspension depends on its density and consistency, that is, its table flow value (TF). By comparing the trench stabilization capacity of air foam suspension with that of bentonite clay slurry in model tests, the appropriate performance of air foam suspension was confirmed. The cost evaluation of using an air foam suspension for a diaphragm wall excavation is presented.

本文言語English
ホスト出版物のタイトルGeotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE
ページ413-418
ページ数6
出版ステータスPublished - 2006 12 1
イベント5th International Conference of TC28 of the International Society for Soil Mechanics and Geotechnical Engineering, ISSMGE - Amsterdam, Netherlands
継続期間: 2005 6 152005 6 17

出版物シリーズ

名前Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE

Conference

Conference5th International Conference of TC28 of the International Society for Soil Mechanics and Geotechnical Engineering, ISSMGE
国/地域Netherlands
CityAmsterdam
Period05/6/1505/6/17

ASJC Scopus subject areas

  • 地球化学および岩石学
  • 地盤工学および土木地質学

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