Ignatenko D. Substantiation of parameters of soil-cement pile supporting structures on landslide slopes

Thesis for obtaining scientific degree of the Candidate of Technical Sciences in specialty 05.15.09 – "Geotechnical and mining mechanics". Dnipro National University of Railway Transport named after Academician V. Lazaryan, National Technical University "Dnipro Polytechnic", Dnipro, 2021. The dissertation is devoted to the research of parameters of soil-cement piles as supporting structures on landslide-prone slopes. The paper conducts surveys and analysis of the current state of landslide-prone slopes in the city of Dnipro. Comparative calculations of finite-element models of landslide-layered sloping slope with arrangement of supporting structures of soil-cement piles: vertical, located at an angle to the vertical axis, connected by a concrete grillage, without a grillage, with different diameters, with different distance between piles, but with the location determined by preliminary calculations of the location of sliding surface. According to the results of calculations of the contact task of interaction of soil mass and supporting structure, the regularities of formation of strength and stability of landslide-reinforced slope were obtained, which allows to predict its geomechanical stability depending on the possible location of the sliding surface curve. The method of increasing the coefficient of stability of the soil slope depending on the variation of the parameters of the soil-cement supporting pile structure is substantiated