2018
DOI: 10.2174/1874149501812010340
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A Review on the Characteristics of the Smear Zone: Field Data Back Calculation Compared with Laboratory Testing

Abstract: Background:The so-called smear zone is a disturbed zone developed in soil during prefabricated vertical drainage (PVD) installation using a mandrel. There are 2 main parameters typically used to characterize the smear zone. First, the extent ratio signifies the extent of the soil damage due to mandrel penetration; and second, the permeability ratio κ represents the degree of disturbance to the soil permeability within the smear zone. Objectives:This study reviews 2 methods employed by various researchers to ob… Show more

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