Determination of quasi-filtration phase of consolidation based on experimental and theoretical course of the uniaxial deformation and distribution of pore pressure
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Keywords
clays, consolidation, filtration, creep, coefficient of consolidation
Abstrakt
In this work the consolidation characteristics of the experimental and theoretical process of consolidation was studied. The analyses were carried out on the basis of the axial soil deformation progress and the pore pressure dissipation. The applied methodology gives possibility for the simultaneous comparison of the experimental and theoretical consolidation data and verification of the validity of calculated values of coefficient of consolidation, estimated using different methods. The aim of this research was to put some light on the quasi-filtration phase of consolidation. The results of consolidation studies on five high quality paste samples prepared from Krakowiec clays showed that the quasi-filtration occurs only in specific stages of the whole process. The analysis of changes in coefficient of consolidation depending on the degree of consolidation, enables the separation of the region of quasi-fixed values of cv, which corresponds to the quasi-filtration phase of consolidation.
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Bibliografia
Blewett J., McCarter W.J., Chrisp T.M. & Starrs G., 2002. An automated and improved laboratory consolidation system. Canadian Geotechnical Journal, 39, 738–743.
Casagrande A. & Fadum R.E., 1940. Notes on soil testing for engineering purposes. Harvard Soil Mechanics, 8, Harvard University, Graduate School of Engineering, Cambridge, Mass.
Crawford C.B., 1986. State of the art: Evaluation and interpretation of soil consolidation tests. [in:] Yong R.N., Townsend F.C., Consolidation of Soils: Testing and Evaluation, ASTM STP 892, ASTM International, 71–103.
Dobak P., Gaszyński J., 2014. Aspects of permeability and rheology in uniaxial consolidation, considering analysis of soil deformation progress and pore pressure dissipation. Architecture Civil Engineering Environment, 7, 4, 54–55.
Dobak P. & Pająk R., 2012. Wpływ metod interpretacji badań konsolidacyjnych typu IL na zmienność oznaczeń przepuszczalności iłów krakowieckich. Biuletyn Państwowego Instytutu Geologicznego, 452, 217–224.
Duncan J.M., 1993. Limitations of conventional analysis of consolidation settlement. Journal of Geotechnical Engineering, 119, 9, 1333–1359.
Joseph P.G., 2013. Physical basis and validation of a constitutive model for soil shear derived from micro-structural changes. International Journal of Geomechanics, 13, 4, 365–383.
Joseph P.G., 2014a. Generalized dynamical systems based of on dynamical systems theory. Geotechnical Research, 1, 1, 32–42.
Joseph P.G., 2014b. Viscosity and secondary consolidation in one-dimensional loading. Geotechnical Research, 1, 3, 90–98.
Khan M.A. & Garga V.K., 1994. A simple design for hydraulic consolidometer and volume gauge. Canadian Geotechnical Journal, 31, 769–772.
Mesri G. & Feng T.W., 1999. Coefficient of consolidation by the inf lection point method. Journal of Geotechnical and Geoenvironmental Engineering, 125, 8, 716–718.
Olek B.S., Woźniak H. & Borecka A., 2016. Evaluation of consolidation results by the settlement rate approach. Electronic Journal of Geotechnical Engineering, 21, 7, 1583–1595.
Sridharan A. & Prakash K. 1995a. Critical appraisal of laboratory determination of cv. [in:] Yoshikuni H. & Kusakabe O. (eds.), Compression and consolidation of clayey soils Proceedings of the International Symposium on Compression and Consolidation of Clayey Soils, IS-Hiroshima ’95, Japan, 10–12 May 1995, A.A. Balkema, Rotterdam, 567–572.
Sridharan A., Prakash K. & Asha S.R., 1995b. Consolidation Behaviour of Soils. Geotechnical Testing Journal, 18, 1, 58–68.
Sridharan A. & Prakash K., 1997. The log δ-log t method for the determination of coefficient of consolidation. Geotechnical Engineering, 125, 27–32.
Taylor D .W. , 1948. Fundamentals of Soil Mechanics. John Wiley, New York.
Tewatia S.K., 1998. Evaluation of true c v , instantaneous c v and isolation of secondary consolidation. Geotechnical Testing Journal, 21, 2, 102–108.
Tewatia S.K., Bose P.R. & Sridharan A., 2013. Fastest Rapid Loading Methods of Vertical and Radial Consolidations. International Journal of Geomechanics, 13, 4, 332–339.
Casagrande A. & Fadum R.E., 1940. Notes on soil testing for engineering purposes. Harvard Soil Mechanics, 8, Harvard University, Graduate School of Engineering, Cambridge, Mass.
Crawford C.B., 1986. State of the art: Evaluation and interpretation of soil consolidation tests. [in:] Yong R.N., Townsend F.C., Consolidation of Soils: Testing and Evaluation, ASTM STP 892, ASTM International, 71–103.
Dobak P., Gaszyński J., 2014. Aspects of permeability and rheology in uniaxial consolidation, considering analysis of soil deformation progress and pore pressure dissipation. Architecture Civil Engineering Environment, 7, 4, 54–55.
Dobak P. & Pająk R., 2012. Wpływ metod interpretacji badań konsolidacyjnych typu IL na zmienność oznaczeń przepuszczalności iłów krakowieckich. Biuletyn Państwowego Instytutu Geologicznego, 452, 217–224.
Duncan J.M., 1993. Limitations of conventional analysis of consolidation settlement. Journal of Geotechnical Engineering, 119, 9, 1333–1359.
Joseph P.G., 2013. Physical basis and validation of a constitutive model for soil shear derived from micro-structural changes. International Journal of Geomechanics, 13, 4, 365–383.
Joseph P.G., 2014a. Generalized dynamical systems based of on dynamical systems theory. Geotechnical Research, 1, 1, 32–42.
Joseph P.G., 2014b. Viscosity and secondary consolidation in one-dimensional loading. Geotechnical Research, 1, 3, 90–98.
Khan M.A. & Garga V.K., 1994. A simple design for hydraulic consolidometer and volume gauge. Canadian Geotechnical Journal, 31, 769–772.
Mesri G. & Feng T.W., 1999. Coefficient of consolidation by the inf lection point method. Journal of Geotechnical and Geoenvironmental Engineering, 125, 8, 716–718.
Olek B.S., Woźniak H. & Borecka A., 2016. Evaluation of consolidation results by the settlement rate approach. Electronic Journal of Geotechnical Engineering, 21, 7, 1583–1595.
Sridharan A. & Prakash K. 1995a. Critical appraisal of laboratory determination of cv. [in:] Yoshikuni H. & Kusakabe O. (eds.), Compression and consolidation of clayey soils Proceedings of the International Symposium on Compression and Consolidation of Clayey Soils, IS-Hiroshima ’95, Japan, 10–12 May 1995, A.A. Balkema, Rotterdam, 567–572.
Sridharan A., Prakash K. & Asha S.R., 1995b. Consolidation Behaviour of Soils. Geotechnical Testing Journal, 18, 1, 58–68.
Sridharan A. & Prakash K., 1997. The log δ-log t method for the determination of coefficient of consolidation. Geotechnical Engineering, 125, 27–32.
Taylor D .W. , 1948. Fundamentals of Soil Mechanics. John Wiley, New York.
Tewatia S.K., 1998. Evaluation of true c v , instantaneous c v and isolation of secondary consolidation. Geotechnical Testing Journal, 21, 2, 102–108.
Tewatia S.K., Bose P.R. & Sridharan A., 2013. Fastest Rapid Loading Methods of Vertical and Radial Consolidations. International Journal of Geomechanics, 13, 4, 332–339.
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Feb 16, 2017
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Olek, B. S., & Woźniak, H. (2017). Determination of quasi-filtration phase of consolidation based on experimental and theoretical course of the uniaxial deformation and distribution of pore pressure. Geology, Geophysics and Environment, 42(3), 353. https://doi.org/10.7494/geol.2016.42.3.353
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