Abstract
The region of Bauru, in the center of the Sao Paulo State, Brazil, is typically covered by sandstone of Bauru Group. The subsoil upper layer is unsaturated constituted by reddish and dark brown, fine clayey sand. This residual soil has suffered a pedogenic process, which result in a macro-voided structurally unstable soil. In this region innumerous old constructions had undergone damaging…