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Modeling Grain Crushing and Debonding of Soils
The effects of two structural factors — grain crushing and bonding — were investigated using model materials — granulated silica gel (for the compression) and cement-sand mixture (for the shear resistance). Grain crushing correlates well with kinking of the (oedometric) compression curves. It is suggested that this is the reason for a garlandlike shape of compression and creep curves. Ratio of compression indices Cα/Cc is a constant. Bonding finds place within a specific bonding surface where the behavior is brittle. Outside of this surface, debonded material (sand) behaves in a standard manner, e.g. as ductile (if loose). Both structural factors — grain crushing and debonding — deeply affect the constitutive behavior of geomaterials.
Modeling Grain Crushing and Debonding of Soils
The effects of two structural factors — grain crushing and bonding — were investigated using model materials — granulated silica gel (for the compression) and cement-sand mixture (for the shear resistance). Grain crushing correlates well with kinking of the (oedometric) compression curves. It is suggested that this is the reason for a garlandlike shape of compression and creep curves. Ratio of compression indices Cα/Cc is a constant. Bonding finds place within a specific bonding surface where the behavior is brittle. Outside of this surface, debonded material (sand) behaves in a standard manner, e.g. as ductile (if loose). Both structural factors — grain crushing and debonding — deeply affect the constitutive behavior of geomaterials.
Modeling Grain Crushing and Debonding of Soils
Feda, Jaroslav (author)
Geo-Denver 2000 ; 2000 ; Denver, Colorado, United States
Geotechnical Measurements ; 56-64
2000-07-26
Conference paper
Electronic Resource
English
Measurement , Soil tests , Compression , Creep , Rocks , Bonding , Laboratory tests , Grains (material) , Models , Field tests
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