Temperature Field and Optimal Design of Duct-Ventilated Tower Foundation in Permafrost Regions

Table 2

Thermal parameters [28].

Parameter
Backfills	1.980	1.913 × 10^6	1.919	2.227 × 10^6	2.04 × 10^7
Concrete	1.54	2.016 × 10^6	1.54	2.016 × 10^6	0
Weathered mudstones	1.824	1.846 × 10^6	1.474	2.099 × 10^6	3.77 × 10^7