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Geotextiles Horizontal Drain between Earth Fills and Natural Soft Ground  

Lee, Hyoung-Kyu (서일대)
Kong, Kil-Yong (농업기반공사, 농어촌연구원)
Kim, Hyun-Tae (농업기반공사 농어촌연구원)
Publication Information
Magazine of the Korean Society of Agricultural Engineers / v.44, no.4, 2002 , pp. 129-138 More about this Journal
Abstract
This paper presents a study on the discharge capacity of geotextiles as a horizontal drain layer placed between the layers of earth fill and natural soft ground. Required discharge capacity of geotextiles as drain layers estimated by consolidation analysis is proportional to the consolidation coefficient of the ground soils and the width of the earth fills. The field discharge capacity of the geotextiles are measured by the hydraulic transmissivity test. And the results show wide variation according to the material characteristics of geotextiles, water content of the soils, vertical pressure, and etc. For the short horizontal drain length, geotextile filter mat can be used for the horizontal drain layer. And f3r the long drain($25{\sim}55m$), it is used for the drain together with Bord Drain.
Keywords
Horizontal drain; Discharge capacity; Geotextiles; Filter mate;
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