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

^*この研究の対応する著者

創造理工学部

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月 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月 15 → 2005 6月 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

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

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

他のファイルとリンク

引用スタイル

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 その他.
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).

研究成果: 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 その他. / 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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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.",

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Cost reduction of diaphragm wall excavation using air foam

抄録

出版物シリーズ

Conference

ASJC Scopus subject areas

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