New methods of physical-mechanical soil properties evaluation. Application of triaxial tests at solving of constitutive relations. Short-term and long-term strength. Volume changes before failure–dilatancy and contractancy. Determination of pore pressures and volume charges. Stress path method. Methods of lateral deformation assignment. Determination of deformation modulus, overconsolidation stress and collapsibility of soils. Time variables loading for saturated and unsaturated soils. Analysis of constitutive relations and solving of part problems of non-linear analysis of stress and deformation. Physical index properties. Determination of mechanical properties. Proctor test. CBR test. Sand equivalent. Determination of lime and carbonate in soil. Permeability–coefficient of permeability.
Influence of geotechnical structures on environment. Czech and EU legislature about looking on influence of constructions on environment. Geotechnics and environmental protection. The tasks of geotechnics at waste saving and deactivation – waste dumps, dumps, slime pits, utilization in earth bodies. Influence of structures on underground water, soil, rock surroundings. Mechanical behaviour of frozen soils.