Clay experimental study and cracking mechanisms under controlled desiccation paths using digital image correlation
Clay experimental study and cracking mechanisms under controlled desiccation paths using digital image correlation
The aim of this research is to characterize the shrinkage phenomenon and the cracking mechanisms of a clayey soil subjected to the controlled desiccation in a laboratory experimental system. The approach consisted first to carry out a series of different controlled desiccation tests under three suction levels: high in 361MPa, middle in 110MPa and low in 38MPa. Using the digital image correlation (DIC) method, total local strains were measured. Drying and shrinkage kinetics analysis showed that strains are probably due to both a shrinkage part and another part that can be named mechanical. Only the mode I of cracking mechanisms was observed basing only on calculations of the principal mechanical strains.
Lamine Ighil Ameur; Mahdia Hattab
28th European Young Geotechnical Engineers Conference (EYGEC2024)
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