Ultrasonic cleaning of clogged geosynthetic drain

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 400kPa.The mechanism of physical clogging and susequently the effect of ultrasonic excitation in the removal of clogged particles have been explained.The drainability performance of geotextiles has been evaluated by conduction in-plane (transmissivity) and cross-plane (permittivity) permeability tests.Cross-specimens showed significant reduction in the flow capacity under increasing normal pressure, however, after ultrasonic cleaning clogging potential reduced nearly to uity 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 supplied normal pressure. For the covering abstract of this conference see ITRD E132435.

• Authors:
  • GHOSH, C
  • YASUHARA, K
  • KOMINE, H
  • KONAMI, T
  • KUDO, Y
• Publication Date: 2006

Language

• English

Media Info

• Pagination: 148-155
• Serial:
  • PROCEEDINGS OF THE 5TH ICEG - ENVIRONMENTAL GEOTECHNICS - OPPORTUNITIES, CHALLENGES AND RESPONSIBILITIES FOR ENVIRONMENTAL GEOTECHNICS, HELD CARDIFF JUNE 2006, VOLS 1AND 2

Subject/Index Terms

• TRT Terms: Conferences; Drainage; Geotextiles; Permeability; Pipe; Silting; Tests; Ultrasonics
• Uncontrolled Terms: Clogging
• Subject Areas: Geotechnology; Hydraulics and Hydrology; Maintenance and Preservation; I26: Water Run-off - Freeze-thaw; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01045851
• Record Type: Publication
• Source Agency: TRL
• Files: ITRD
• Created Date: Apr 5 2007 12:29PM