Abstract: The geotechnical properties of the undisturbed completely weathered granitic residual soils at a metro station in Xiamen were statistically analyzed. The conventional regression methods were applied in establishing relationships among the index properties (moisture content, void ratio and unit weight) and compressibility of residual soils. The correlations formulations and their correlation coefficients are also presented in the paper. The results indicate that, using the index properties for the estimation of compressibility have some reliability, but the influence of the structural strength of the completely weathered granitic residual soils should also be considered.

Key words: Xiamen, Granite, Residual Soil, Engineering Properties