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Archives of Civil Engineering

The Journal of Polish Academy of Sciences

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Peat Consolidation – New Approach

Z. Meyer
  • West Pomeranian University of Technology in Szczecin, Department of Geotechnics, 70-310 Szczecin, al. Piastów 50
/ R. Coufal
  • ZUT, West Pomeranian University of Technology in Szczecin, Department of Geotechnics, 70-310 Szczecin, al. Piastów 50
/ M. Kowalów
  • GCO Geotechnical Consulting Office Sp. z o.o. 70-437 Szczecin, ul Jagiellonska 90
/ T. Szczygielski
  • Polish CCP Union, 71-403 Szczecin, ul. Niedziałkowskiego 47a/4
Published Online: 2012-03-12 | DOI: https://doi.org/10.2478/v.10169-011-0013-5

Abstract

The problem of consolidation of soil has been widely investigated. The basic approach was given by Terzaghi who assumed soil of constant physical and mechanical parameters. In the case of peat consolidation, the permeability coefficient of soil and the elasticity modulus are functions of the settlement which is an important additional factor. The model proposed here assumes varying the elasticity and permeability coefficients. Moreover, the settlement is described by the so-called elementary curve which was approximated empirically based upon laboratory tests. The model allows to consider the case when the filtration in the peat body goes in horizontal direction. It happens so when the charging layer does not receive outgoing water from the pores. The model includes also the case when the load involving consolidation varies in time i.e. the charging layer grows up gradually. The model has been applied practically in several cases and it comes that there is a good agreement between calculated and measured settlement of the consolidated peat layer.

Keywords: ground improvement; soil consolidation

References

  • 1. Z. Meyer, Empirical Model at Peat Consolidation, International Conference Advances in Understanding and Modeling the Mechanical Behavior at Peat. Delft 1993.

  • 2. Z. Meyer, T. Szczygielski, Analisis of Consolidation of Peat Loaded with Ash Layer [in Polish], 55 Konferencja Naukowa Krynica 2009.

  • 3. Z. Meyer, Influence of Load on the Peat Consolidation Conditions [in Polish], IX Krajowa Konferencja Mechaniki Gruntów i Fundamentowania, Kraków 1993, pp. 325-331.

  • 4. Z. Meyer, Estimation of Soil Parameters for Consolidated Layer, Prace Naukowe Politechniki Szczecinskiej - Geotechnika VIII, Szczecin 1992.

  • 5. Z. Wiłun, Outlines of Geotechnics [in Polish], Wyd. Kom. i Łacznosci. Warszawa 1992.

About the article

Received: 2010-12-15

Revised: 2011-06-05

Published Online: 2012-03-12

Published in Print: 2011-06-01



Citation Information: Archives of Civil Engineering, ISSN (Online) 1230-2945, DOI: https://doi.org/10.2478/v.10169-011-0013-5. Export Citation

© Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. (CC BY-NC-ND 3.0)

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