TY JOUR TI Approbation of the methodology of shear tests of geosynthetic composite “KAPLAM” KW Shear KW geocomposite KW coefficient of friction KW tangential stress KW normal stress KW deformation JO Bulletin of scientific research results AU Somov, D.N. AU Igoshev, I.S. AU Petryaev, A.V. PY 2024 IS 2024 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"