Constant | Value | Units | Description |
---|---|---|---|
W | 10 | m | Horizontal distance of the study region |
Dasphalt | 0.2032 | m | Thickness of the asphalt layer |
Db | 0.1524 | m | Thickness of the base layer |
Ds | 1 | m | Thickness of the silt layer |
w | 0.15 | 1 | Initial water content |
ρ | 1708 | kg/m3 | Dry density of silt specimen |
d | 50 | μm | Diameter of silt particle |
Gs | 2.65 | 1 | Specific gravity of silt specimen |
Es | 12.7 | GPa | Young’s modulus of silt particle |
Ei | 9 | GPa | Young’s modulus of ice |
Ew | 3.9 × 10−5 | Pa | Young’s modulus of water |
Ea | 0 | Pa | Young’s modulus of air |
Easphalt | 9 | GPa | Young’s modulus of the asphalt layer |
Eb | 0.3 | GPa | Young’s modulus of the base layer |
Eps | 3 | GPa | Young’s modulus of the polystyrene foam |
Epu | 0.1 | GPa | Young’s modulus of the polyurethane foam |
Egf | 10 | GPa | Young’s modulus of the glass fiber board |
μs | 0.3 | 1 | Poisson’s ratio of silt particle |
μi | 0.3 | 1 | Poisson’s ratio of ice |
μw | 0.5 | 1 | Poisson’s ratio of water |
μa | 0 | 1 | Poisson’s ratio of air |
μasphalt | 0.35 | 1 | Poisson’s ratio of the asphalt layer |
μb | 0.3 | 1 | Poisson’s ratio of the base layer |
μps | 0.4 | 1 | Poisson’s ratio of the polystyrene foam |
μpu | 0.32 | 1 | Poisson’s ratio of the polyurethane foam |
μgf | 0.25 | 1 | Poisson’s ratio of the glass fiber board |
ρs | 2600 | kg/m3 | Density of silt particle |
ρi | 917 | kg/m3 | Density of ice |
ρw | 1000 | kg/m3 | Density of water |
ρa | 1.29 | kg/m3 | Density of air |
ρasphalt | 2243 | kg/m3 | Density of the asphalt layer |
ρb | 1680 | kg/m3 | Density of the base layer |
ρps | 46 | kg/m3 | Density of the polystyrene foam |
ks | 2 | W/m·K | Thermal conductivity of silt particle |
ki | 2.2 | W/m·K | Thermal conductivity of ice |
kw | 0.58 | W/m·K | Thermal conductivity of water |
ka | 0.025 | W/m·K | Thermal conductivity of air |
kasphalt | 0.75 | W/m·K | Thermal conductivity of asphalt layer |
kb | 0.7 | W/m·K | Thermal conductivity of base layer |
kps | 0.03 | W/m·K | Thermal conductivity of the polystyrene foam |
Cps | 835 | J/kg·K | Heat capacity of silt particle |
Cpi | 1960 | J/kg·K | Heat capacity of ice |
Cpw | 4181.3 | J/kg·K | Heat capacity of water |
Cpa | 1005 | J/kg·K | Heat capacity of air |
Cpasphalt | 920 | J/kg·K | Heat capacity of the asphalt layer |
Cpb | 840 | J/kg·K | Heat capacity of the base layer |
Cpps | 1500 | J/kg·K | Heat capacity of the polystyrene foam |
Cppu | 1450 | J/kg·K | Heat capacity of the polyurethane foam |
Lf | 334 | kJ/kg | Latent heat fusion of water |
αs | 9 × 10−6 | 1/K | Volumetric coefficient of thermal expansion of silt particle |
αi | 1.9 × 10−4 | 1/K | Volumetric coefficient of thermal expansion of ice |
αw | 2.07 × 10−4 | 1/K | Volumetric coefficient of thermal expansion of water |
αa | 3.43 × 10−3 | 1/K | Volumetric coefficient of thermal expansion of air |
αasphalt | 4 × 10−5 | 1/K | Volumetric coefficient of thermal expansion of the asphalt |
αb | 4 × 10− 5 | 1/K | Volumetric coefficient of thermal expansion of the base layer |
αps | 7 × 10−5 | 1/K | Volumetric coefficient of thermal expansion of the foam |
αpu | 6.5 × 10−5 | 1/K | Volumetric coefficient of thermal expansion of the polyurethane foam |
αgf | 3 × 10−5 | 1/K | Volumetric coefficient of thermal expansion of the glass fiber board |