Heat Transfer and FrostThaw Penetration in Soil Surrounding an Inclusion of Sand
NUMERICAL MODELING OF HEAT FLOW
Properties of the soil and inclusion
Table 1. Thermal properties of the inclusion material (sand or sandy soil) and surrounding soil for numerical simulations of heat flow
Initial temperatures
Figure 4. Soil surface temperatures corresponding to BC-1
RESULTS OF NUMERICAL SIMULATIONS
Table 2. Frost depths in silty soil of 25% moisture content on selected days beneath inclusions of various widths
One-dimensional simulations
Figure 9. Temperature differences
BC-Warmest
BC-Warm
Figure 11. Comparison of the location of the freezing front in silty soil with and without a sand inclusion present
Figure 13. Comparison of the location of the freezing front in silty soil with and without a sand inclusion present
Table 4. Least soil temperature (C) and earliest day of occurrence for soil depths of 7.5, 22.5 and 37.5 cm
BC-Cold
Discussion of inclusion effects on soil temperatures
Figure 18. Location of the freezing front in silty soil of 10, 17 or 25% moisture content, with a sand inclusion present
SUMMARY AND CONCLUSIONS - CR95_130025
LITERATURE CITED - CR95_130026
APPENDIX A: RESPONSE OF BURIED ELECTROMAGNETIC SENSOR SYSTEM DURING WINTER
APPENDIX A: RESPONSE OF BURIED ELECTROMAGNETIC SENSOR SYSTEM DURING WINTER-continue
Report Documentation Page - CR95_130029
ABSTRACT-continued - CR95_130030
CR95_13
NUMERICAL MODELING OF HEAT FLOW
Properties of the soil and inclusion
Table 1. Thermal properties of the inclusion material (sand or sandy soil) and surrounding soil for numerical simulations of heat flow
Initial temperatures
Figure 4. Soil surface temperatures corresponding to BC-1
RESULTS OF NUMERICAL SIMULATIONS
Table 2. Frost depths in silty soil of 25% moisture content on selected days beneath inclusions of various widths
One-dimensional simulations
Figure 9. Temperature differences
BC-Warmest
BC-Warm
Figure 11. Comparison of the location of the freezing front in silty soil with and without a sand inclusion present
Figure 13. Comparison of the location of the freezing front in silty soil with and without a sand inclusion present
Table 4. Least soil temperature (C) and earliest day of occurrence for soil depths of 7.5, 22.5 and 37.5 cm
BC-Cold
Discussion of inclusion effects on soil temperatures
Figure 18. Location of the freezing front in silty soil of 10, 17 or 25% moisture content, with a sand inclusion present
SUMMARY AND CONCLUSIONS - CR95_130025
LITERATURE CITED - CR95_130026
APPENDIX A: RESPONSE OF BURIED ELECTROMAGNETIC SENSOR SYSTEM DURING WINTER
APPENDIX A: RESPONSE OF BURIED ELECTROMAGNETIC SENSOR SYSTEM DURING WINTER-continue
Report Documentation Page - CR95_130029
ABSTRACT-continued - CR95_130030
CR95_13