Abstract: The consolidation deformation properties of the red clay samples from Guilin karst terrain under the static load are evaluated in this paper and the results could provide reference for the engineering constructions in the same area. Undisturbed red clay samples from various depths were collected and onedimensional consolidation laboratory tested under various moisture contents and dry densities. The following conclusions could be obtained: The lowest coefficient of compressibility of red clay samples were found at the optimum moisture content with different dry densities. The moisture content and degree of compaction have influence on the consolidation properties of Guilin red clay.

Key words: red clay in karst areas, consolidation properties, degree of compaction, optimum moisture content