Abstract: According to measured results, the freezing sinking Inner Mongolia Dongsheng area, heat of hydration of concrete wall of the frozen wall has been analyzed and discussed. Access to the inner wall hydration effects on the frozen wall can not be ignored, its impact so well to help at the longer duration of positive temperature, and Jurassic strata affected by the depth of thawing of frozen wall is larger than the Cretaceous and other conclusions about 200mm . Construction method of the Inner Mongolia region to freeze the design and construction of great significance.

Key words: Freezing sinking, wall hydration, frozen wall, Cretaceous and Jurassic strata