Cost reduction of diaphragm wall excavation using air foam

Yoshimasa Kondo, Takashi Nakayama, Hisanaga Naoe, Hirokazu Akaki

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    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.

    Original languageEnglish
    Title of host publicationGeotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE
    Pages413-418
    Number of pages6
    Publication statusPublished - 2006
    Event5th International Conference of TC28 of the International Society for Soil Mechanics and Geotechnical Engineering, ISSMGE - Amsterdam
    Duration: 2005 Jun 152005 Jun 17

    Other

    Other5th International Conference of TC28 of the International Society for Soil Mechanics and Geotechnical Engineering, ISSMGE
    CityAmsterdam
    Period05/6/1505/6/17

    Fingerprint

    diaphragm wall
    Diaphragms
    Cost reduction
    foam
    Excavation
    Foams
    excavation
    Suspensions
    air
    Air
    Bentonite
    bentonite
    slurry
    trench
    Clay
    cost reduction
    clay
    cost
    model test
    Costs

    ASJC Scopus subject areas

    • Geochemistry and Petrology
    • Geotechnical Engineering and Engineering Geology

    Cite this

    Kondo, Y., Nakayama, T., Naoe, H., & Akaki, H. (2006). Cost reduction of diaphragm wall excavation using air foam. In Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE (pp. 413-418)

    Cost reduction of diaphragm wall excavation using air foam. / Kondo, Yoshimasa; Nakayama, Takashi; Naoe, Hisanaga; Akaki, Hirokazu.

    Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE. 2006. p. 413-418.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Kondo, Y, Nakayama, T, Naoe, H & Akaki, H 2006, Cost reduction of diaphragm wall excavation using air foam. in Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE. pp. 413-418, 5th International Conference of TC28 of the International Society for Soil Mechanics and Geotechnical Engineering, ISSMGE, Amsterdam, 05/6/15.
    Kondo Y, Nakayama T, Naoe H, Akaki H. Cost reduction of diaphragm wall excavation using air foam. In Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE. 2006. p. 413-418
    Kondo, Yoshimasa ; Nakayama, Takashi ; Naoe, Hisanaga ; Akaki, Hirokazu. / Cost reduction of diaphragm wall excavation using air foam. Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE. 2006. pp. 413-418
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