HUANG Bin, RAO Xi-bao, WANG Zhang-qiong, et al. Experimental study of expansion model of expansive soil considering state water content and density[J]. 2011, 32(S1).
HUANG Bin, RAO Xi-bao, WANG Zhang-qiong, et al. Experimental study of expansion model of expansive soil considering state water content and density[J]. 2011, 32(S1).DOI:
cover load and expansion rate have been studied through expansion experiments at the state of K0 stress for Handan strong expansive soil. Then a constitutive model of expansive soil which considered the effects of these three factors is set up. The relationship between ultimate water content
compactness
initial water content and cover load is also set up. Finally
a constitutive equation for linear expansion coefficient of Handan strong expansive soil is proposed. It takes compactness
initial water content
cover load and ultimate water content as variables. With this constitutive equation
constitutive relation of any water content can be obtained. The experiments and expression of this model are relatively simple and of certain practical use. This model can provide theoretical basis and reference for design and construction.