Modeling of Dynamic Properties of Cemented Clay

Luling Yang, Richard D. Woods

In the proceedings of: GEO2011: 64th Canadian Geotechnical Conference, 14th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering

Session: Earthquake Engineering & Geophysics

ABSTRACT: A new shear stiffness model, Simsoil-CC, is proposed to represent dynamic properties of cemented clay. The model predicts maximum shear modulus and variation of modulus and damping as a function of shearing strain amplitude. Model parameters are determined for different types of clay and cementation agents based on laboratory data from this study and previous studies. The model, Simsoil-CC, for cemented clay is an extension of Simsoil-CS for cemented sand. The model can be combined to predict the response of cemented soil to dynamic loads. This can be useful for performing earthquake site response analysis for naturally cemented sites or sites that have been improved by cementation.

RÉSUMÉ: El nuevo modelo Simsoil-CC para arcillas cementadas es propuesto para representar el máximo modulo de corte y variación del modulo de corte y amortiguamiento con deformación. Los parámetros del modelo son determinados para diferentes tipos de arcilla y agentes cementantes basado en ensayos de laboratorio ejecutados en esta investigación e investigaciones previas. Los modelos Simsoil-CC y Simsoil-CS propuesto previamente para arenas cementadas pueden ser usados en análisis de respuesta sísmica para suelos naturalmente o artificialmente cementado.

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