SCS: A one‐dimensional piecewise‐linear large strain consolidation model for structured soils

Abstract

Soil structure is an important mechanics property which has drawn much attention from researchers. A piecewise-linear numerical model, called SCS, is developed to investigate the large strain consolidation of structured soils. SCS accommodates large strain, soil self-weight, vertical flows, time-dependent loading, unloading/reloading, seepage force, soil heterogeneity, and soil structure. A three-stage formulation is proposed to specify the compressibility behaviors of structured soils in SCS. The accuracy of SCS in the cases of small strain and large strain is checked comparing with analytical solutions and numerical solutions respectively. The effect of the main factors impacting soil structure on the consolidation processes of structured soils is investigated using several SCS simulations. Finally, a few SCS simulations with multiple structured soil layers are conducted.

Experimental Research on High-Temperature Stability of Asphalt Concrete Panels of Impermeable Layers

“…It can be seen from Figure 2 that under different gradations, the change law of slope flow value was similar to that of test time, which was mainly divided into three stages: the slope flow value was almost linear growth stage; slope flow value gradually stable stage; slope flow value stable stage. That is to say, the slope flow value increased greatly in the first 6 h (the completion rate of slope flow value reached 70~85%), the change of slope flow value tended to be stable in 6~12 h (the completion rate of slope flow value reached 85~100%), and the slope flow value was basically unchanged in 12~48 h. The soil structure theory [21,22] can be used to explain the change of slope flow value and the three stages of test time. Figure 3 illustrates the relationship between the gradation index of asphalt concrete and the slope flow value.…”

Mechanical properties of artificially structured soil and Binary-medium-based constitutive model under undrained conditions

“…However, in practical engineering, due to a lack of understanding of the characteristics of natural soils, especially its mechanical properties, numerous engineering issues have arisen, and accidents that endanger the lives and property of the public have occurred [ 7 , 8 ]. The structural nature of soil is an important mechanical property [ 9 ]. Considering the influence of structure on the mechanical properties of natural soils [ 10 – 12 ].…”