Ultrasonic cleaning of clogged geosynthetic drain

C. Ghosh, K. Yasuhara, H. Komine, T. Konami, Y. Kudo

研究成果: Conference contribution

抄録

This paper presents clogging induced reduction in the water flow capacity of six commercially available geotextiles. Each drain material was placed within fine-grained soil slurry undergoing staged consolidation up to 400 kPa. The mechanism of physical clogging and subsequently the effect of ultrasonic excitation in the removal of clogged particles have been explained. The drainability performance of geotextiles has been evaluated by conducting in-plane (transmissivity) and cross-plane (permittivity) permeability tests. Cross-plane flow of clogged specimen reduced more drastically than in-plane flow. Clogged specimens showed significant reduction in the flow capacity under increasing normal pressure, however, after ultrasonic cleaning clogging potential reduced nearly to unity for all geotextiles tested. Ultrasonic cleaning efficiency for all clogged geotextiles was more than 80% and the severity of clogging rose with decreasing thickness. However, after ultrasonic cleaning for 5 minutes duration the clogging potential reduced to unity, which was irrespective of applied normal pressure.

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148-155
ページ数8
出版ステータスPublished - 2006
外部発表はい
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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