ГЕОТЕХНИЧЕСКИЕ ХАРАКТЕРИСТИКИ ГРУНТОВ, ВЛИЯЮЩИЕ НА СЕЙСМОУСТОЙЧИВОСТЬ ОТКОСОВ

Abstract

The article examines the geotechnical characteristics of soils that have a decisive impact on the seismic stability of slopes and embankments. The study analyzes the behavior of key parameters under dynamic loading, including grain-size distribution, moisture content, porosity ratio, angle of internal friction, cohesion, and deformation modulus. Field tests (SPT, CPT, SCPT) and laboratory experiments (cyclic triaxial, direct shear, and resonant column tests) were used to assess the degradation of strength and filtration properties of soils during seismic events. Numerical modeling methods (limit equilibrium method, Newmark’s sliding block analysis, and finite element method) combined with probabilistic approaches (Monte Carlo simulations) identified critical parameter values at which the factor of safety (Fs) decreases to critical levels. The findings confirm the necessity of a comprehensive approach to considering soil properties in engineering practice and can be applied in developing regulatory frameworks and in the design of earthquake-resistant geotechnical structures.