Huerta, A.; KRIEGSMANN, G.; Krizek, R. Journal of geotechnical engineering (ASCE) Vol. 114, num. 5, p. 614-627 DOI: 10.1061/(ASCE)0733-9410(1988)114:5(614) Data de publicació: 1988-05 Article en revista
A one-dimensional mathematical model based on finite-strain theory is developed to solve the problem of seepage-induced
consolidation in sedimented slurries or very soft clays. The direct solution employs known or assumed material property relationships to determine the final thickness of a soft sediment subjected to a constant piezometric head. It is useful for predicting the capacity of a disposal
area and the time-dependent improvement in material properties. Alternatively, the inverse solution utilizes final settlement and steady-state flow data from laboratory or field tests to deduce permeability and
compressibility relationships for soft sediments. This approach is especially
helpful in the case of permeability determinations because it avoids some of the major problems associated with permeability testing of such materials. The resulting model shows that the coefficient of
permeability influences both the time to reach the steady-state condition and the nature of the steady-state condition itself. An illustrative example is presented wherein data from a series of tests on a kaolinite
slurry are used to establish material property relationships that are then used to predict the response of other tests on the same soil under different conditions.