Piles system securing road against landslide. 2D/3D method of numerical modeling and design problems

• Autorzy: Urbański A. , Grodecki M.

Identyfikatory

DOI

10.24425/bpasts.2020.135378

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

landslide; numerical analysis; piles; soil-structure interaction; multi-scale analysis

PL

osuwisko; analiza numeryczna; interakcja gleba-struktura; analiza wieloskalowa

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2020
• Tom: Vol. 68, nr 6
• Strony: 1433--1442
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Urbański A.

• Civil Engineering Department, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland

autor

Grodecki M.

• Civil Engineering Department, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland

Bibliografia

• [1] A. Urbański, “A simplified computational model for a periodic system of horizontally loaded piles”, in Proceedings of the 3-rd International Symposium on Computational Geomechanics, Krakow, Poland, 2013.
• [2] A. Urbański and M. Grodecki, “Protection of a building against landslide. A case study and FEM simulations” Bull. Pol. Ac.: Tech. 67(3), 657‒664 (2019).
• [3] M.A Pando, “Analyses of lateral loaded piles with P-Y Curves – observations on the effect of pile flexural stiffness and cyclic loading”, in Proceedings of the 7 THGeo3 T2 Conference, Raleigh, 2013.
• [4] O. Taheri, R.Z. Moayed, and M. Nozari, “Lateral soil-pile stiffness subjected to vertical and lateral loading”, J. Geotech. Transp. Eng. (1), 30‒37 (2015).
• [5] J.N. Santos, “Behavior Analysis of a Berlin-type Retaining Wall”. M.Sc. thesis, Instituto Superior Tecnico, Universidade Tecnice de Lisboa, Portugal, 2011.
• [6] J. Ruigrok, “Laterally loaded piles. Models and measurements.” M.Sc. Thesis, Delft University of Technology, Holland, 2010
• [7] H.Y. Quin, “Response of pile foundations due to lateral force and soil movement”. PhD Thesis, Griffith School of Engineering, Griffith University, Australia, 2010.
• [8] H.Y. Quin, E.Y. Oh, W.D. Guo, and P.F. Dai, “Upper bound limit analysis of lateral pile capacity”, in Proceedings of Pile 2013, pp. 1‒8.
• [9] K. Georgiadis, S.W. Sloan and A.V. Lyamin, “Ultimate lateral pressure of two side-by-side piles in clay”, Geotechnique 63, 733‒745 (2013).
• [10] J. Won, K. You, S. Jeong, and S. Kim, “Coupled effects in stability analysis of pile–slope systems”, Comput. Geotech. 32, 304–315 (2005).
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• [14] D.V. Griffiths and P.A. Lane, “Slope stability analysis by finite elements”, Geotechnique 49, 387‒403 (1999).
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• [16] Regulation of the Minister of Transport and Maritime Economy, 2ndMarch, 1999, On technical conditions to be met by public roads and their location [in Polish]. Logbook 1999 nr 43 pos. 430.
• [17] A. Urbański and A. Łabuda, “A modeling method 2D/3D of a deep excavation supported by a soldier pile wall” Tech. Trans. 27, 169–182 (2012) [in Polish].
• [18] A. Urbański and M. Grodecki, “Analysis of the breakdown of a deep excavation supported by soldier pile wall” Tech. Trans. 27: 145–155 (2012) [in Polish].
• [19] A. Truty and R. Obrzut, “Improved formulation of the Hardening Soil model in the context of modeling undrained behavior of cohesive soils” Stud. Geotech. Mech. 37(2), 61–68 (2015)
• [20] Eurocode 7: Geotechnical Design (EN-1997).
• [21] W. Bogusz and T. Godlewski, “Philosophy of geotechnical design in civil engineerin – possibilities and risks” Bull. Pol. Ac.: Tech. 67(2), 289‒306 (2019).

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).