ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 3

Geotextile Filters for a Large Liquefaction Tank

Hryciw, RD
Graduate student and associate professor, Northwestern University, Evanston, IL

Cornet, J-M
SCIS Consultants, Jeddah,

Dowding, CH
Graduate student and associate professor, Northwestern University, Evanston, IL

Abstract

A large liquefaction tank used to prepare sand for laboratory testing required a 107-cm (42-in.) diameter filter. The filter was needed to separate the sand from water diffusers below, to facilitate a uniform upward flow of water, and to filter out undersired fines. The chosen design consisted of two geotextile fabrics sandwiched between a perforated plexiglass sheet and a steel grating. Selection of the geotextiles was based on the fabrics' porosities, permeabilities, and pore sizes. The system has been a success and has required no maintenance in over four years of usage.

Keywords:
sands, filters, liquefaction, laboratory tests, geotextiles

Paper ID: GTJ10526J
DOI: 10.1520/GTJ10526J
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