Evaluation of the Unsaturated Shear Strength Parameters of Compacted, Heaving Soil Using Geotechnical Properties

Abstract The shear strength is a fundamental property of soil material under structural loads. determination properties unsaturated soils challenging and time-consuming. Geotechnical predictive models can be utilized to assess the heaving soil. This study attempts propose evaluate parameters compacted These include angle internal friction associated with net normal stress (ϕ'), indicating rate increase in respect change matric suction (ϕ b ), effective cohesion (c'). geotechnical were assessed through laboratory tests such as particle size distribution, consistency limits, specific gravity, modified Proctor compaction test, swelling advanced triaxial testing. Multivariate analysis was conducted using NCSS 12 software design models. validation includes coefficient, probability value, comparing experimental values predicted values, developed other model found recent literature. engineered this estimate acceptable precision.