A5102011303- Soil and Unsaturated Flow
- Landslides and related hazards
- Geotechnical Engineering and Soil Mechanics
- Soil, Finite Element Methods
- Groundwater flow and contamination studies
- Grouting, Rheology, and Soil Mechanics
- Dam Engineering and Safety
- Geotechnical Engineering and Underground Structures
- Geoscience and Mining Technology
- Granular flow and fluidized beds
- Energy Load and Power Forecasting
- Ultrasonics and Acoustic Wave Propagation
- Civil and Geotechnical Engineering Research
- Geotechnical Engineering and Analysis
- Landfill Environmental Impact Studies
- Advanced Mathematical Modeling in Engineering
- Geological Modeling and Analysis
- Geomechanics and Mining Engineering
- Numerical methods in engineering
- Tunneling and Rock Mechanics
- Non-Destructive Testing Techniques
- Geotechnical and Geomechanical Engineering
- Soil Moisture and Remote Sensing
Beijing Jiaotong University
2009-2024
Xihua University
2024
A constitutive model of unsaturated soils is developed by incorporating the concept intergranular stress into framework modified Cam–Clay model. Within this context, degree saturation viewed as an internal state variable, so that soil–water retention function appears naturally evolution equation for volume fraction water. The new not only has a neat structure but also includes fewer material parameters compared to other models. volumetric-hardening law proposed taking account effect...
Summary In this research, the interfacial energy is taken into account in deformation work for unsaturated soils. Based on porous media theory, thermodynamic balance equations each phase and interface are used to derive input The equation serves as basis starting point choice of stress state variables, based which conjugate stresses strain increments derived. influences interfaces effective constitutive law liquid then discussed equation. can be expressed Bishop's type, parameter shown a...
Modal decomposition method is utilized to investigate Lamb wave scattering at step-like discontinuity. The structure regard as a special delamination where one or two layers are missing and only layer extended infinite. Model technique then combined with the boundary condition equations get solution of whole discontinuity region. efficacy illustrated by calculation examples second symmetric mode step-discontinuity different thickness evaluated Energy flux conservation confirmed.
Pore water chemistry can exert significant controls over the chemo-mechanical behavior of chemically active soils, which has not been characterized by using traditional Terzaghi’s effective stress to a satisfactory extent. In this paper, based on concept intergranular stress, generalized for saturated soils is reconceptualized and incorporated into framework modified Cam–Clay (MCC) model describe mechanical response upon complex chemical loadings. The proposed capable capturing very well...
SFG model has some advantages that it is more flexible in modeling different types of unsaturated soils than most other models the literature. However, there are shortages model. Firstly, did not take account influence degree saturation on deformation soil. Additionally, SWCC was adopted relatively simple and cannot reflect relationship between current void ratio saturation. This paper firstly presents modified based The adds into volumetric for soils. In addition, adopts a can ratio. new...
A constitutive model for unsaturated soils is developed. Based on the SFG approach, deduced LC curve has a smooth transition from saturated state to state. The yield stress does not increase with increasing suction monotonically, and thus could reproduce plastic volume change of slurry soil caused by drying. takes account effect saturation, lead different surface wetting Soils same but saturation can have stress. used simulate exited test data predicted curves agree well points.