TY - JOUR N2 - The main objective of this work is to present an innovative method of numerical modeling of anchored piles system acting as a road protection against landslide, called the “2D/3D method”. Firstly, short description of the problem and “state of the art” review are included. An effective methodology of the design supported by the numerical analysis, solving the problem of interaction of a periodic system of piles and the unstable soil mass is presented, for which some detailed information about proposed numerical approach is given. The key idea of 2D/3D method is to join the pile with the 2D plane strain continuum by fictitious connectors of Winkler type with P-Y properties identified during the analysis of a subsidiary 3D problem. Practical example of usage of proposed approach to a real case of a road endangered by a landslide then protected by the piles system is presented. On the base of this example, a discussion about important design issues like internal forces in piles (mainly bending moments) and anchors (tensile forces) or overall stability of the soil-structure system is done. L1 - http://www.czasopisma.pan.pl/Content/118356/PDF/19a_D1433-1442_01648_Bpast.No.68-6_29.12.20_OK.pdf L2 - http://www.czasopisma.pan.pl/Content/118356 PY - 2020 IS - No. 6 EP - 1442 DO - 10.24425/bpasts.2020.135378 KW - landslide KW - numerical analysis KW - piles KW - soil-structure interaction KW - multi-scale analysis A1 - Urbański, A. A1 - Grodecki, M. VL - 68 DA - 31.12.2020 T1 - Piles system securing road against landslide. 2D/3D method of numerical modeling and design problems SP - 1433 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/118356 T2 - Bulletin of the Polish Academy of Sciences Technical Sciences ER -