Review article

The article addresses the accounting of excess pore pressures in the design of excavation supports in weak water-saturated clayey soils. There has been established a correlation between Skempton's coefficient ( A f) and the soil index of liquidity. Generalization of the instantaneous strength theory and a method for calculating active/ passive pressure have been developed. A calculation of the excavation pit enclosure design has been carried out with and without considering excess pore pressures. It is shown that accounting for them allows reducing the material intensity of the structure.