The UTUH model: a time-dependent unified hardening constitutive model for unsaturated soils
Runkang Zhao,
Annan Zhou,
Yang-Ping Yao
Abstract:An advanced constitutive framework for unsaturated soils, the UTUH model, is proposed in this paper, which considers the joint effect of time, suction and overconsolidation within the framework of sub-loading surface plasticity. A reference line, namely the instantaneously normal compression line (INCLs) for unsaturated soils, is introduced from a conceptual framework drawn from constant rates of strain test results to determine creep time and overconsolidation states of unsaturated soils. Subsequently, an iso… Show more
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