[1] F.H. Kulhawy, P.W. Mayne, Manual on estimating soil properties for foundation design (No. EPRI-EL-6800). Electric Power Research Inst., Palo Alto, CA (USA ); Cornell Univ., Ithaca, NY (USA ), Geotechnical Engineering Group (1990).
[2] T . Lunne, P.K. Robertson, J.J.M. Powell, Cone Penetration Testing in Geotechnical Practice. Blackie Academic/ Routledge Publishing, New York (1997).
[3] K . Karlsrud, T. Lunne, D.A. Kort, S. Strandvik, CPTU correlations for clays. In: Proceedings of the International Conference on Soil Mechanics and Geotechnical Engineering 16 (2), p. 693 (2005).
[4] P.K. Robertson, Interpretation of cone penetration tests — a unified approach. Can. Geoech. J. 46 (11), 1337-1355 (2009), DOI: https://doi.org/10.1139/T09-065
[5] P .K. Robertson, The James K. Mitchell Lecture: Interpretation of in-situ tests-some insights. In: Proc. 4th Int. Conf. on Geotechnical and Geophysical Site Characterization – ISC 4, 3-24 (2012).
[6] P .W. Mayne, Interpretation of geotechnical parameters from seismic piezocone tests. In: Proc. 3rd Intl. Symposium on Cone Penetration Testing, CPT’14, 47-73 (2014).
[7] A. Eslami, S. Moshfeghi, H. MolaAbasi, M.M. Eslami, Piezocone and Cone Penetration Test (CPTu and CPT) Applications in Foundation Engineering. Butterworth-Heinemann (2019).
[8] P.K. Robertson, Soil behaviour type from the CPT. In: Proc. 2nd Int. Symposium on Cone Penetration Testing, CPT’10 (2010).
[9] P.K. Robertson, Cone penetration test (CPT)-based soil behaviour type (SBT) classification system — an update. Can. Geotech. J. 53 (12), 1910-1927 (2016) DOI: https://doi.org/10.1139/cgj-2016-0044
[10] P.K. Robertson, K.L. Cabal, Estimating soil unit weight from CPT. In: Proc. 2nd Int. Symposium on Cone Penetration Testing, CPT’10 (2010).
[11] P.W. Mayne, J. Peuchen, D. Bouwmeester, Soil unit weight estimation from CPTs. In: Proc. 2nd Int. Symposium on Cone Penetration Testing, CPT’10, (2010).
[12] L .Y. Ju, C. Miao, Z.J. Cao, P. Hubbard, K. Soga, K., D.Q. Li, Geo-Congress 2020: Modeling. Geomaterials and Site Characterization, 558-568 (2020).
[13] K . Karlsrud, K. Brattlien, T. Lunne, Improved CPTU interpretations based on block samples. NGI (1997).
[14] H.E. Low, T. Lunne, K.H. Andersen, M.A. Sjursen, X. Li, M.F. Randolph, Estimation of intact and remoulded undrained shear strengths from penetration tests in soft clays. Géotechnique 60 (11), 843-859 (2010), DOI: https://doi.org/10.1680/geot.9.P.017
[15] Z . Rémai, Correlation of undrained shear strength and CPT resistance. Per. Pol. Civil Eng. 57 (1), 39-44 (2013), DOI: https://doi.org/10.3311/PPci.2140
[16] A .K.M. Zein, International Journal of Geo-Engineering 8 (1), (2017), DOI: https://doi.org/10.1186/s40703-017- 0046-y
[17] P.W. Mayne, J. Peuchen, Evaluation of CPTU Nkt cone factor for undrained strength of clays. In: Proc. 4th Intl. Symposium on Cone Penetration Testing (CPT’18), 423-429 (2018).
[18] A. Drevininkas, G. Creer, M. Nkemitag, Comparison of consolidation characteristics from CPTu, DMT and laboratory testing at Ashbridges Bay, Toronto, Ontario. in: Proceedings of the 64th Canadian Geotechnical Conference and 14th PanAmerican Conference on Soil Mechanics and Geotechnical Engineering, Toronto, Canada (2011).
[19] K . Koster, G. Erkens, C. Zwanenburg, A new soil mechanics approach to quantify and predict land subsidence by peat compression. Geophysical Research Letters 43, 10792-10799 (2016), DOI: https://doi.org/10.1002/2016GL 071116
[20] M. Mir, A. Bouafia, K. Rahmani, N. Aouali, Analysis of load-settlement behaviour of shallow foundations in saturated clays based on CPT and DPT tests. Geomech. Eng. 13 (1), 119-139 (2017), DOI: https://doi.org/10.12989/ gae.2017.13.1.119
[21] B. Di Buò, J. Selänpää, T. Lansivaara, M. D’Ignazio, Evaluation of existing CPTu-based correlations for the deformation properties of Finnish soft clays. In: Proc. 4th Int. Symposium on Cone Penetration Testing (CPT’18), 185-191 (2018).
[22] Z . Bednarczyk, R. Sandven, Comparison of CPTU and laboratory tests interpretation for Polish and Norwegian clays. In: International Site Characterization Conference, ISC-2. International Society of Rock Mechanics (ISRM), International Association Engineering Geology (IAEG), Geo-Institute of the American Society of Civil Engineers (ASCE), Portuguese Association of Engineers (OE) and British Council (BC). Porto, Portugal (2004).
[23] P . Zawrzykraj, P. Rydelek, A. Bąkowska, Geo-engineering properties of Eemian peats from Radzymin (central Poland) in the light of static cone penetration and dilatometer tests. Eng. Geol. 226, 290-300 (2017), DOI: https://doi.org/10.1016/j.enggeo.2017.07.001
[24] J. Konkol, K. Międlarz, L. Bałachowski, Geotechnical characterization of soft soil deposits in Northern Poland. Eng. Geol. 259, 105187 (2019), DOI: https://doi.org/10.1016/j.enggeo.2019.105187
[25] J. Nawrocki, A. Becker (red.), Atlas geologiczny Polski. Państ. Inst. Geol., Warszawa (2017).
[26] PN -EN ISO 17892, Geotechnical investigation and testing. Laboratory testing of soil.
[27] PN -EN ISO 14688, Geotechnical investigation and testing. Identification and classification of soil.
[28] S. Shimobe, G. Spagnoli, Relationships between undrained shear strength, liquidity index, and water content ratio of clays. Bull. Eng. Geol. Environ. 79, 4817-4828 (2020), DOI: https://doi.org/10.1007/s10064-020-01844-5
[29] P.K. Robertson, C.E. Wride, Evaluating cyclic liquefaction potential using the cone penetration test. Can. Geoecht. J. 35 (3), 442-459 (1998), DOI: https://doi.org/10.1139/t98-017
[30] I. Bagińska, Estimating and verifying soil unit weight determined on the basis of SCPTu tests. Ann. Warsaw Univ. Life Sci. – SGGW. Land Reclam. 48 (3), 233-242 (2016), DOI: https://doi.org/10.1515/sggw-2016-0018
[31] P.W. Mayne, Evaluating effective stress parameters and undrained shear strengths of soft-firm clays from CPT and DMT. Australian Geomechanics Journal 51 (4), 27-55 (2016).
[32] A. Cheshomi, Empirical relationships of CPTu results and undrained shear strength. J. GeoEng. 13 (2), 49-57 (2018), DOI: http://dx.doi.org/10.6310/jog.201806_13(2).1
[33] C.P. Wroth, The interpretation of in situ soil tests. Geotechnique 34 (4), 449-489 (1984), DOI: https://doi.org/10.1680/geot.1984.34.4.449
[34] R. Larsson, M. Mulabdic, Piezocone tests in clay. Swedish Geotechnical Institute, Linköping, Report 42, (1991).
[35] Y .J. Shin, D. Kim, Assessment of undrained shear strength based on Cone Penetration Test (CPT) for clayey soils. J. Civ. Eng. 15 (7), 1161-6 (2011), DOI: https://doi.org/10.1007/s12205-011-0808-6
[36] A .H. El-Bosraty, A.M. Ebid, A.L. Fayed, Estimation of the undrained shear strength of east Port-Said clay using the genetic programming. Ain Shams Engineering Journal 11 (4), 961-969 (2020), DOI: https://doi.org/10.1016/j.asej.2020.02.007
[37] L . Bałachowski, K. Międlarz, J. Konkol, Strength parameters of deltaic soils determined with CPTU, DMT and FVT. In: Proc. 4th Int. Symposium on Cone Penetration Testing (CPT’18), 117-121 (2018).
[38] S.J. Hong, M. Lee, J. Kim, W. Lee, Evaluation of undrained shear strength of Busan clay using CPT. In: Proc. 2nd Int. Symposium on Cone Penetration Testing, CPT’10 (2010).
[39] K . Koster, G. De Lange, R. Harting, E. de Heer, H. Middelkoop, Characterizing void ratio and compressibility of Holocene peat with CPT for assessing coastal–deltaic subsidence. Q. J. Eng. Geol. Hydrogeol. 51 (2), 210-218 (2018), DOI: https://doi.org/10.1144/qjegh2017-120
[40] G. Sanglerat, The Penetrometer and Soil Exploration. Dev. Geotech. Eng. (1972).
[41] P.W. Mayne, Cone penetration testing (Vol. 368). Transportation Research Board (2007).