Due to the fact that the existing criteria for evaluati g the fi tering function of geotextiles in contact with cohesive soils are not entirely satisfacsistory, in this the paper direct presents modelling one of new approfiltration cht to phenomenthe pron in lem. an This new oedopermea eter method bconyving water through a soil sample in close contact <;>with unwoven geotextile, submi
ted to the pressure’. undergone by the material inserted in the earth work. The results of the expe iments showed that this method give good results.
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