在冷库建筑中，低温冷间为防止出现地坪冻臌现象，常采用架空、通风、加热等防冻设施，以使地坪隔热层下土壤温度ｔ１ｗ高于０℃，而防止土壤中水分的冻结。计算围护结构传入热量的公式为Ｑ１＝ＫＦ（ｔｗ－ｔｎ）ａ，式中：Ｋ———传热系数，ｗ／ｍ２℃；Ｆ———围护结... In the cold storage building, low temperature cold to prevent the phenomenon of floor freezing, often used overhead, ventilation, heating and other antifreeze facilities, so that the floor insulation soil temperature t1w higher than 0 ℃, and to prevent soil moisture freeze. The formula for calculating the heat input into the envelope is Q1 = KF (tw-tn) a, where: K --- heat transfer coefficient, w / m2 ℃;