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Static load test curve analysis based on soil field investigations

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Języki publikacji
EN
Abstrakty
EN
This paper expands the M-K curve theory with examples of the most commonly mentioned pile-soil mechanics behaviours in the literature and their corresponding κ 2 variations. A brief introduction shows the history of the Meyer-Kowalow theory and its basic assumptions. This is followed by the relationship between in situ investigation CPT results, with parameters C1, C2, Ct used to approximate the load-settlement curve according to the M-K theory. The Meyer-Kowalow curve satisfies asymptotic behaviour for small loads, where linear theory applies, and for limit loads, when pile displacement is out of control. Essential in the description are constant parameters C, which refer to the aggregated Winklers modulus, Ngr limit loads and k, which is crucial for static load test results. For this reason, the authors sought to calculate the κ value based upon soil mechanics principles. This article shows methods for checking statistical mathematical calculations, published earlier by Meyer using CPT investigations. It presents real case calculations and directions for future planned research.
Rocznik
Strony
329--337
Opis fizyczny
Bibliogr. 28 poz., rys., wykr., tab.
Twórcy
autor
  • West Pomeranian Institute of Technology Szczecin, Faculty of Civil Engineering and Architecture, Piastów 50, 70-311 Szczecin
autor
  • West Pomeranian Institute of Technology Szczecin, Faculty of Civil Engineering and Architecture, Piastów 50, 70-311 Szczecin
Bibliografia
  • [1] W. Bogusz and S. Łukasik, “Approximation of pile bearing capacity based on field soil investigations based on PN-EN-1997 and PN-B-02482”, Environmental Engineering, pp. 177–183, Białystok (2013), [in Polish].
  • [2] K. Gwizdała, “Pile foundations”, Wydawnictwo Naukowe PWN, Warszawa, (2010), [in Polish].
  • [3] K. Gwizdała, “Polish experience in the assessment of pile bearing capacity and settlement of the pile foundation”, 2016.
  • [4] K. Gwizdała and A. Krasiński, “Bearing capacity of displacement piles in layered soils with highly diverse strength parameters”, Pierre Delage, Jacques Desrues, Roger Frank, Alain Puech F.S. (Ed.), Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering Conference on Soil Mechanics and Geotechnical Engineering, Presses des Ponts, Paris, (2013).
  • [5] A. Krasiński, “Proposal for Calculating the Bearing Capacity of Screw Displacement Piles in Non-Cohesive Soils Based on Cpt Results”, Stud. Geotech. Mech. XXXIV (2012).
  • [6] Z. Meyer, “Shaft and base of a pile stress analysis of a single pile based on Boussinesq linear theory”, XVIII Scientific Seminar Regional Problems Of Environmental Engineering, Szczecin (2015), [in Polish].
  • [7] Z. Meyer and K. Stachecki, “Static load test curve (Q–s) conversion in to pile of different size”, Ann. Warsaw Univ. Life Sci. – SGGW. 50, pp. 171–182. (2018).
  • [8] Z. Meyer and K. Żarkiewicz, “Skin and Toe Resistance Mobilisation of Pile During Laboratory Static Load Test”, Stud. Geotech. Mech. 40, pp. 1–5, 2018.
  • [9] P. Rychlewski, “Investigation of test piles”, Nowoczesne Budownictwo Inżynieryjne, pp. 72–74, Kraków, 2009, [in Polish].
  • [10] G. Szmechel, “Estimation of maximal pile bearing capacity based on static pile load test in restricted settlement range”, West Pomeranian Institute Of Technology Szczecin, 2014, [in Polish].
  • [11] Z. Wiłun, “Geotechnics outline”, Wydawnictwa Komunikacji Łączności, 2008, [in Polish].
  • [12] K. Żarkiewicz, “Laboratory research of toe resistance based on static pile load tests in different schemes”, Second International Conference: Challenges in Geotechnical Engineering, pp. 80–81 (2017).
  • [13] K. Żarkiewicz, “Estimation of pile base and shaft bearing capacity using pile settlement curve”, Inżynieria Morska i Geotechnika 3, pp. 224–229 (2018).
  • [14] S. Chandra, “Modeling of soil behavior”, Presentation on Indian Institute of Technology (2014).
  • [15] A. Eslami, B.H. Fellenius, “Pile capacity estimated from CPT data – Six methods compared”, International Society for Soil Mechanics and Geotechnical Engineering, pp: 91‒94 (1997).
  • [16] A. Eslami, E. Aflaki, and B. Hosseini: “Evaluating CPT and CPTu based pile bearing capacity estimation methods using Urmiyeh Lake Causeway records”, Scientia Iranica Volume 18, Issue 5, pp:1009‒1019, October 2011.
  • [17] B. Czado and B. Wrana, “Bearing capacity of pile foundations based on CPT results in accordance to Polish standards and Eurocode 7”, AGH Journal of Mining and Geoengineering, vol. 36 No. 2, pp. 111‒119, Kraków (2012).
  • [18] I.N. Obeta, M.E. Onyia, D.A. Obiekwa, “Comparative analysis of methods of pile-bearing capacity evaluation using CPT logs from tropical soils”, Journal of the South African Institution of Civil Engineering vol. 60 (2018).
  • [19] A.S. Azizkandi, A. Kashkooli, and M.H. Baziar, “Prediction of Uplift Pile Displacement Based on Cone Penetration Tests (CPT)”, Geotechnical and Geological Engineering, vol. 32, Issue 4, pp. 1043‒1052 (2014).
  • [20] A. Misra, A.L. Roberts, “Axial service limit state analysis of drilled shafts using probabilistic approach”, Geotechnical and Geological Engineering, vol. 24, pp. 1561‒1580 (2006).
  • [21] S.J. Matysiak, R. Kulchytsky-Zhygailo, and D.M. Perkowski, “Stress distribution in an elastic layer resting on a Winkler foundation with an emptiness”, Bull. Pol. Ac.: Tech., vol. 66, No. 5, p. 721‒727 (2018).
  • [22] F.V. Chin, “Estimation of the Ultimate Load of Piles Not Carried to Failure”, Proceedings of 2nd Southeast Asian conference on Soil Engineering, pp. 81‒90 (1970).
  • [23] M.T. Davisson, “High Capacity Piles”, Proceedings, Lecture Series, Innovation in Foundation Construction, ASCE, pp. 52, Illinois Section (1972).
  • [24] J. Konkol, “Numerical estimation of the pile toe and shaft unit resistances during the installation process in sands”, Studia Geotechnica et Mechanica, vol. 37 No. 1, pp. 38‒44 (2015).
  • [25] J.L. Briaud, “Geotechnical Engineering: Unsaturated and saturated soils”, pp. 575, Wiley, New Jersey (2013).
  • [26] Z. Meyer, K. Żarkiewicz, “Pile shaft resistance formation mechanism, experimental analysis”, Regionalne Problemy Inżynierii Środowiska, Szczecin, 2017, [in Polish].
  • [27] K. Żarkiewicz, PhD: “Analysis of pile shaft bearing capacity formation in non-cohesive soils based on laboratory model investigation”, West Pomeranian University Of Technology in Szczecin, Szczecin 2017, [in Polish].
  • [28] G. Szmechel, PhD: “Boundary pile bearing capacity estimation based on static pile load test in limited range”, West Pomeranian University Of Technology in Szczecin, Szczecin 2014, [in Polish].
Uwagi
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-1c0ee196-20a0-4a6b-809b-e692a004d3ec
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