CHANGES OF MECHANICAL PARAMETERS OF SOILS DUE TO GROUNDWATER FLOW - PROCESSES IDENTIFICATION

Abstract eng:
The paper presents the description of behavior of selected soils subjected to relatively high hydraulic gradients based on experimental results. The influences of all major processes, such as piping, suction elimination, preferential way creation have been tested. It comments the commonly used models for numerical analysis and describes the requirements on the new constitutive equation necessary for description of the soils behavior under certain conditions. The conclusions challenge some of the traditional points of view on the problems of soil degradation. For instance: The relation between the piping precondition and the amount of fine particles in the soil.

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