Influence of the hydration heat of cast-in-situ concrete on temperature field and stability of soil-pile in high-temperature permafrost regions

摘要

High-temperature permafrost has wondrous susceptive to construction disturbance. There is observably influence by hydration heat of cast-in-situ concrete on permafrost-pile in high-temperature permafrost regions. Based on numerical simulation experiments and model tests; the influence of the hydration heat of cast-in-situ concrete on temperature field and stability of soil-pile in high-temperature permafrost regions are carried out. The value of the hydration heat of cast-in situ concrete and the regularities of distribution of temperature field and the refreezing time of the permafrost around the pile were got. A reference basis for stability and design and construction of piles in high-temperature permafrost regions can be provided.