Study on the Freeze-Thaw Problems in the Winter Construction of the Lianghekou Earth-Core Rockfill Dam and the Countermeasures for Prevention

Figure 10

Variation of the negative accumulated air temperature and the frozen depth of the compacted gravelly soil without covering the thermal insulation materials with time from January 9 to 14, 2017 and from January 9 to 14, 2018. (a) Variation of the negative accumulated air temperature. (b) Frozen depth of the compacted gravelly soil without covering the thermal insulation materials.

(a)

(b)