Cost reduction of diaphragm wall excavation using air foam

Yoshimasa Kondo; Takashi Nakayama; Hisanaga Naoe; Hirokazu Akagi

Cost reduction of diaphragm wall excavation using air foam

Yoshimasa Kondo^*, Takashi Nakayama, Hisanaga Naoe, Hirokazu Akagi

^*Corresponding author for this work

School of Creative Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE
Pages	413-418
Number of pages	6
Publication status	Published - 2006 Dec 1
Event	5th International Conference of TC28 of the International Society for Soil Mechanics and Geotechnical Engineering, ISSMGE - Amsterdam, Netherlands Duration: 2005 Jun 15 → 2005 Jun 17

Publication series

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

Conference

Conference	5th International Conference of TC28 of the International Society for Soil Mechanics and Geotechnical Engineering, ISSMGE
Country/Territory	Netherlands
City	Amsterdam
Period	05/6/15 → 05/6/17

ASJC Scopus subject areas

Geochemistry and Petrology
Geotechnical Engineering and Engineering Geology

Cite this

Kondo, Y., Nakayama, T., Naoe, H., & Akagi, 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). (Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE).

Cost reduction of diaphragm wall excavation using air foam. / Kondo, Yoshimasa; Nakayama, Takashi; Naoe, Hisanaga et al.
Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE. 2006. p. 413-418 (Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kondo, Y, Nakayama, T, Naoe, H & Akagi, 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. 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, Netherlands, 05/6/15.

Kondo Y, Nakayama T, Naoe H, Akagi 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. (Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE).

Kondo, Yoshimasa ; Nakayama, Takashi ; Naoe, Hisanaga et al. / 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 (Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE).

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Cost reduction of diaphragm wall excavation using air foam

Abstract

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Conference

ASJC Scopus subject areas

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