Advances in Civil Engineering / 2020 / Article / Tab 2

Research Article

Research and Application of the Local Differential Freezing Technology in Deep Alluvium

Table 2

Thermophysical parameters of soil layers at various horizons.

DepthSoil qualityStatusDensity (kg·m3)Thermal conductivity (J·(ms·°C)−1)Specific heat capacity (kJ·(kg·°C)−1)Freezing temperature (°C)Latent heat (kJ·kg−1)

−100 mFine sandUnfrozen19351.4631.455−1.1444.0
Frozen1.7841.242
−200 mSandy clayUnfrozen19581.4151.506−2.1048.5
Frozen1.7051.325
−300 mCalcium clayUnfrozen19491.3981.517−2.3250.5
Frozen1.6351.362
−400 mFine silty sandUnfrozen20241.4751.372−1.1044.0
Frozen1.8151.071
−500 mMedium-coarse sandUnfrozen20551.4661.402−1.4144.5
Frozen1.7961.175
−600 mMudstoneUnfrozen21501.5221.257−2.4345.5
Frozen1.8571.053

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