NUMERICAL MODELLING MICRO PILES AND EVALUATION OF THE O-CELL TEST RESULTS
Omarov A.R. Zhussupbekov A.Zh. Sarsembayeva A.S. Issakulov A.B. Buranbayeva A.M.
2023National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2023#5Issue 461190 - 201 pp.
The paper describes the results of a numerical simulation of micro-pile tests using the PLAXIS 2D software. The application of the Osterberg method (O-Cell) in axial pile load testing nowadays found widespread use due to the increase of the construction of high-rise buildings. The O-cell method is a sacrificial hydraulic jack (O-Cell) typically installed within the lower or the middle part of an instrumented pile to measure skin friction and bearing resistance. These two cases are described in detail in terms of geological conditions, pile configuration, and the testing procedure. In this study, an asymmetric finite element numerical model (FEM) was used to simulate and analyze the pile-soil interaction problem of a bi-directional pile load test using PLAXIS 2D. The staged loading of the pile in the program was simulated by increasing the bi-directional load on the pile by 1450 kN, at a maximum load of 14500 kN. In this study, an asymmetric FEM model was used to simulate and analyze the pile-soil interaction problem of the O-cell method of a pile load test using PLAXIS 2D. This geotechnical investigation is important for understanding the soil-pile interaction on difficult and problematical soil ground conditions.
BDSLT , FEM , Micro pile , O-Cell , Plaxis 2D
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L.N. Gumilyov, Eurasian National University, Astana, Kazakhstan
Saint Petersburg State University of Architecture and Civil Engineering, Saint Petersburg, Russian Federation
L.N. Gumilyov
Saint Petersburg State University of Architecture and Civil Engineering
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