A study on the horizontal permeability of non-woven geotextile

Abstract

Roles of sand mat placed on soft ground subjected to embankment loading are horizontal (lateral) drainage during consolidation and improving workability. Recently, it is difficult to obtain sand with high permeability near the site of the construction. On the other hands, non-woven geotextile has very high transmissivity (horizontal permeability) and the thickness of sand mat can be reduced by using geotextile as horizontal drainage. The objective of this paper is to evaluate the transmissivity (horizontal permeability) of non-woven geotextile in soils taking account of compression under load and clogging with soil particles based on results of laboratory tests.