Research on the Cracking Mechanism of Concrete Basement Retaining Walls
Cracking in concrete basement retaining walls is a common occurrence in engineering,yet there is still a lack of comprehensive understanding of its mechanism.In light of that,a case study was conducted on the cracking of a concrete basement retaining wall to investigate the external crack appearance and collect samples for carbonation depth testing.The composite analysis of the actual project indicates that the thickness and concrete strength of the retaining wall meet the design requirements,and that the reinforcement index generally conforms to the design specifications.Furthermore,a comparative analysis of the impact of raw materials composition for the concrete on cracking was conducted.The results indicate that cement with a larger specific surface area leads to more severe early cracking to the concrete.Moreover,further analysis trial suggests that a high concrete strength surplus coefficient is unfavorable for crack resistance,and that concrete shrinkage is the primary cause of cracking in the concrete basement retaining walls,which provides a reference for the research on the mechanism of retaining wall cracking.
concrete basement retaining wallcracking mechanismretaining wall crackssurface area
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