Influence of Soft Soil Samples Quality on the Compressibility and Undrained Shear Strength – Seven Lessons Learned From the Vistula Marshlands

[1] Amundsen, H. A., & Thakur, V. (2019). Storage Duration Effects on Soft Clay Samples. Geotechnical Testing Journal, 42(4), 20170426. https://doi.org/10.1520/GTJ20170426 AmundsenH. A. ThakurV. 2019 Storage Duration Effects on Soft Clay Samples Geotechnical Testing Journal 42 4 20170426. https://doi.org/10.1520/GTJ20170426 Search in Google Scholar

[2] Andresen, A., & Kolstad, P. (1979). The NGI 54-mm samplers for undisturbed sampling of clays and representative sampling of coarser materials. Proceedings of International Symposium on Soil Sampling, 13–21. AndresenA. KolstadP. 1979 The NGI 54-mm samplers for undisturbed sampling of clays and representative sampling of coarser materials Proceedings of International Symposium on Soil Sampling 13 21 Search in Google Scholar

[3] ASTM D2435. (2020). Test Methods for One-Dimensional Consolidation Properties of Soils Using Incremental Loading. ASTM International. https://doi.org/10.1520/D2435_D2435M-11R20 ASTM D2435 2020 Test Methods for One-Dimensional Consolidation Properties of Soils Using Incremental Loading ASTM International https://doi.org/10.1520/D2435_D2435M-11R20 Search in Google Scholar

[4] ASTM D2573. (2015). Standard Test Method for Field Vane Shear Test in Saturated Fine-Grained Soils. ASTM International. ASTM D2573 2015 Standard Test Method for Field Vane Shear Test in Saturated Fine-Grained Soils ASTM International Search in Google Scholar

[5] ASTM D6528. (2017). Test Method for Consolidated Undrained Direct Simple Shear Testing of Cohesive Soils. ASTM International. https://doi.org/10.1520/D6528-17 ASTM D6528 2017 Test Method for Consolidated Undrained Direct Simple Shear Testing of Cohesive Soils ASTM International https://doi.org/10.1520/D6528-17 Search in Google Scholar

[6] Baligh, M. M. (1985). Strain path method. Journal of Geotechnical Engineering, 111(9), 1108–1136. BalighM. M. 1985 Strain path method Journal of Geotechnical Engineering 111 9 1108 1136 Search in Google Scholar

[7] Beesley, M. E. W., & Vardanega, P. J. (2020). Parameter variability of undrained shear strength and strain using a database of reconstituted soil tests. Canadian Geotechnical Journal, 57(8), 1247–1255. https://doi.org/10.1139/cgj-2019-0424 BeesleyM. E. W. VardanegaP. J. 2020 Parameter variability of undrained shear strength and strain using a database of reconstituted soil tests Canadian Geotechnical Journal 57 8 1247 1255 https://doi.org/10.1139/cgj-2019-0424 Search in Google Scholar

[8] Boone, S. J. (2010). A critical reappraisal of “preconsolidation pressure” interpretations using the oedometer test. Canadian Geotechnical Journal, 47(3), 281–296. https://doi.org/10.1139/T09-093 BooneS. J. 2010 A critical reappraisal of “preconsolidation pressure” interpretations using the oedometer test Canadian Geotechnical Journal 47 3 281 296 https://doi.org/10.1139/T09-093 Search in Google Scholar

[9] Bowles, J. E. (1984). Physical and geotechnical properties of soils. McGraw-Hill. BowlesJ. E. 1984 Physical and geotechnical properties of soils McGraw-Hill Search in Google Scholar

[10] Casagrande, A. (1932). Structure of Clay and Its Importance in Foundation Engineering. Journal of Boston Society of Civil Engineers, 19(14), 168–209. CasagrandeA. 1932 Structure of Clay and Its Importance in Foundation Engineering Journal of Boston Society of Civil Engineers 19 14 168 209 Search in Google Scholar

[11] Chandler, R. J. (1988). The in-situ measurement of the undrained shear strength of clays using the field vane. In Vane shear strength testing in soils: Field and laboratory studies (pp. 13–44). ASTM International. ChandlerR. J. 1988 The in-situ measurement of the undrained shear strength of clays using the field vane In Vane shear strength testing in soils: Field and laboratory studies 13 44 ASTM International Search in Google Scholar

[12] DeJong, J. T., Krage, C. P., Albin, B. M., & DeGroot, D. J. (2018). Work-Based Framework for Sample Quality Evaluation of Low Plasticity Soils. Journal of Geotechnical and Geoenvironmental Engineering, 144(10), 04018074. https://doi.org/10.1061/(ASCE)GT.1943-5606.0001941 DeJongJ. T. KrageC. P. AlbinB. M. DeGrootD. J. 2018 Work-Based Framework for Sample Quality Evaluation of Low Plasticity Soils Journal of Geotechnical and Geoenvironmental Engineering 144 10 04018074 https://doi.org/10.1061/(ASCE)GT.1943-5606.0001941 Search in Google Scholar

[13] Di Buò, B., Selänpää, J., Länsivaara, T. T., & D’Ignazio, M. (2019). Evaluation of sample quality from different sampling methods in Finnish soft sensitive clays. Canadian Geotechnical Journal, 56(8), 1154–1168. https://doi.org/10.1139/cgj-2018-0066 Di BuòB. SelänpääJ. LänsivaaraT. T. D’IgnazioM. 2019 Evaluation of sample quality from different sampling methods in Finnish soft sensitive clays Canadian Geotechnical Journal 56 8 1154 1168 https://doi.org/10.1139/cgj-2018-0066 Search in Google Scholar

[14] Donohue, S., & Long, M. (2010). Assessment of sample quality in soft clay using shear wave velocity and suction measurements. Géotechnique, 60(11), 883–889. https://doi.org/10.1680/geot.8.T.007.3741 DonohueS. LongM. 2010 Assessment of sample quality in soft clay using shear wave velocity and suction measurements Géotechnique 60 11 883 889 https://doi.org/10.1680/geot.8.T.007.3741 Search in Google Scholar

[15] Gołębiewska, A. (1983). Vane testing in peat. 1, 113–117. GołębiewskaA. 1983 Vane testing in peat 1 113 117 Search in Google Scholar

[16] Gwizdała, K., Kłos, J., Kurałowicz, Z., & Tejchman, A. (1983). Charakterystyka wybranych cech gruntów żuławskich. Archiwum Hydrotechniki, 2, 227–242. GwizdałaK. KłosJ. KurałowiczZ. TejchmanA. 1983 Charakterystyka wybranych cech gruntów żuławskich Archiwum Hydrotechniki 2 227 242 Search in Google Scholar

[17] Hight, D. W. (2003). Sampling Effects in Soft Clay: An Update on Ladd and Lambe (1963). 86–121. https://doi.org/10.1061/40659(2003)4 HightD. W. 2003 Sampling Effects in Soft Clay: An Update on Ladd and Lambe (1963) 86 121 https://doi.org/10.1061/40659(2003)4 Search in Google Scholar

[18] Holtz, R. D., Jamiolkowski, M. B., & Lancellotta, R. (1986). Lessons From Oedometer Tests on High Quality Samples. Journal of Geotechnical Engineering, 112(8), 768–776. https://doi.org/10.1061/(ASCE)0733-9410(1986)112:8(768) HoltzR. D. JamiolkowskiM. B. LancellottaR. 1986 Lessons From Oedometer Tests on High Quality Samples Journal of Geotechnical Engineering 112 8 768 776 https://doi.org/10.1061/(ASCE)0733-9410(1986)112:8(768) Search in Google Scholar

[19] Jamiolkowski, M., Ladd, C. C., Germaine, J. T., & Lancellotta, R. (1985). New developments in field and laboratory testing of soil. 57–153. JamiolkowskiM. LaddC. C. GermaineJ. T. LancellottaR. 1985 New developments in field and laboratory testing of soil 57 153 Search in Google Scholar

[20] Karlsrud, K., & Hernandez-Martinez, F. G. (2013). Strength and deformation properties of Norwegian clays from laboratory tests on high-quality block samples. Canadian Geotechnical Journal, 50(12), 1273–1293. https://doi.org/10.1139/cgj-2013-0298 KarlsrudK. Hernandez-MartinezF. G. 2013 Strength and deformation properties of Norwegian clays from laboratory tests on high-quality block samples Canadian Geotechnical Journal 50 12 1273 1293 https://doi.org/10.1139/cgj-2013-0298 Search in Google Scholar

[21] Karlsson, M., Emdal, A., & Dijkstra, J. (2016). Consequences of sample disturbance when predicting long-term settlements in soft clay. Canadian Geotechnical Journal, 53(12), 1965–1977. https://doi.org/10.1139/cgj-2016-0129 KarlssonM. EmdalA. DijkstraJ. 2016 Consequences of sample disturbance when predicting long-term settlements in soft clay Canadian Geotechnical Journal 53 12 1965 1977 https://doi.org/10.1139/cgj-2016-0129 Search in Google Scholar

[22] Kempfert, H.-G., & Gebreselassie, B. (2006). Excavations and foundations in soft soils. Springer-Verlag. KempfertH.-G. GebreselassieB. 2006 Excavations and foundations in soft soils Springer-Verlag Search in Google Scholar

[23] Klobe, B. (1992). Eindimensionale Kompresssion und Konsolidation und darauf basierende Verfahren zur Setzungsprognose (Phd Thesis). Department of Civil Engineering, Geo and Environmental Sciences, Karlsruhe Institute of Technology. KlobeB. 1992 Eindimensionale Kompresssion und Konsolidation und darauf basierende Verfahren zur Setzungsprognose (Phd Thesis). Department of Civil Engineering, Geo and Environmental Sciences, Karlsruhe Institute of Technology Search in Google Scholar

[24] Konkol, J., & Balachowski, L. (2021). Statistical evaluation of physical and index properties of Vistula Marshlands deltaic soft soils. IOP Conference Series: Earth and Environmental Science, 727(1), 012004. https://doi.org/10.1088/1755-1315/727/1/012004 KonkolJ. BalachowskiL. 2021 Statistical evaluation of physical and index properties of Vistula Marshlands deltaic soft soils IOP Conference Series: Earth and Environmental Science 727 1 012004 https://doi.org/10.1088/1755-1315/727/1/012004 Search in Google Scholar

[25] Konkol, J., Międlarz, K., & Bałachowski, L. (2019). Geotechnical characterization of soft soil deposits in Northern Poland. Engineering Geology, 259, 105187. https://doi.org/10.1016/j.enggeo.2019.105187 KonkolJ. MiędlarzK. BałachowskiL. 2019 Geotechnical characterization of soft soil deposits in Northern Poland Engineering Geology 259 105187 https://doi.org/10.1016/j.enggeo.2019.105187 Search in Google Scholar

[26] Konstadinou, M., Bezuijen, A., Greeuw, G., Zwanenburg, C., Van Essen, H. M., & Voogt, L. (2021). The Influence of Apparatus Stiffness on the Results of Cyclic Direct Simple Shear Tests on Dense Sand. Geotechnical Testing Journal, 44(5), 20190471. https://doi.org/10.1520/GTJ20190471 KonstadinouM. BezuijenA. GreeuwG. ZwanenburgC. Van EssenH. M. VoogtL. 2021 The Influence of Apparatus Stiffness on the Results of Cyclic Direct Simple Shear Tests on Dense Sand Geotechnical Testing Journal 44 5 20190471. https://doi.org/10.1520/GTJ20190471 Search in Google Scholar

[27] Koppula, S. (1981). Statistical Estimation of Compression Index. Geotechnical Testing Journal, 4(2), 68. https://doi.org/10.1520/GTJ10768J KoppulaS. 1981 Statistical Estimation of Compression Index Geotechnical Testing Journal 4 2 68 https://doi.org/10.1520/GTJ10768J Search in Google Scholar

[28] Kulhawy, F. H., & Mayne, P. W. (1990). Manual on estimating soil properties for foundation design. Electric Power Research Institute. KulhawyF. H. MayneP. W. 1990 Manual on estimating soil properties for foundation design Electric Power Research Institute Search in Google Scholar

[29] La Rochelle, P., & Lefebvre, G. (1971). Sampling Disturbance in Champlain Clays. In B. Gordon & C. Crawford (Eds.), Sampling of Soil and Rock (pp. 143–143–21). ASTM International. https://doi.org/10.1520/STP26665S La RochelleP. LefebvreG. 1971 Sampling Disturbance in Champlain Clays In GordonB. CrawfordC. (Eds.), Sampling of Soil and Rock 143 143–21 ASTM International https://doi.org/10.1520/STP26665S Search in Google Scholar

[30] La Rochelle, P., Sarrailh, J., Tavenas, F., Roy, M., & Leroueil, S. (1981). Causes of sampling disturbance and design of a new sampler for sensitive soils. Canadian Geotechnical Journal, 18(1), 52–66. https://doi.org/10.1139/t81-006 La RochelleP. SarrailhJ. TavenasF. RoyM. LeroueilS. 1981 Causes of sampling disturbance and design of a new sampler for sensitive soils Canadian Geotechnical Journal 18 1 52 66 https://doi.org/10.1139/t81-006 Search in Google Scholar

[31] Ladd, C. C. (1991). Stability Evaluation during Staged Construction. Journal of Geotechnical Engineering, 117(4), 540–615. https://doi.org/10.1061/(ASCE)0733-9410(1991)117:4(540) LaddC. C. 1991 Stability Evaluation during Staged Construction Journal of Geotechnical Engineering 117 4 540 615 https://doi.org/10.1061/(ASCE)0733-9410(1991)117:4(540) Search in Google Scholar

[32] Ladd, C. C., & DeGroot, D. J. (2003). Recommended practice for soft ground site characterization: Arthur Casagrande Lecture. Proceedings of 12th Panamerican Conference on Soil Mechanics and Geotechnical Engineering, 1, 1–59. LaddC. C. DeGrootD. J. 2003 Recommended practice for soft ground site characterization: Arthur Casagrande Lecture Proceedings of 12th Panamerican Conference on Soil Mechanics and Geotechnical Engineering 1 1 59 Search in Google Scholar

[33] Landon, M. M., DeGroot, D. J., & Sheahan, T. C. (2007). Nondestructive Sample Quality Assessment of a Soft Clay Using Shear Wave Velocity. Journal of Geotechnical and Geoenvironmental Engineering, 133(4), 424–432. https://doi.org/10.1061/(ASCE)1090-0241(2007)133:4(424) LandonM. M. DeGrootD. J. SheahanT. C. 2007 Nondestructive Sample Quality Assessment of a Soft Clay Using Shear Wave Velocity Journal of Geotechnical and Geoenvironmental Engineering 133 4 424 432 https://doi.org/10.1061/(ASCE)1090-0241(2007)133:4(424) Search in Google Scholar

[34] Lim, G. T., Pineda, J., Boukpeti, N., Carraro, J. A. H., & Fourie, A. (2019). Effects of sampling disturbance in geotechnical design. Canadian Geotechnical Journal, 56(2), 275–289. https://doi.org/10.1139/cgj-2018-0016 LimG. T. PinedaJ. BoukpetiN. CarraroJ. A. H. FourieA. 2019 Effects of sampling disturbance in geotechnical design Canadian Geotechnical Journal 56 2 275 289 https://doi.org/10.1139/cgj-2018-0016 Search in Google Scholar

[35] Lunne, T., Berre, T., Andersen, K. H., Strandvik, S., & Sjursen, M. (2006). Effects of sample disturbance and consolidation procedures on measured shear strength of soft marine Norwegian clays. Canadian Geotechnical Journal, 43(7), 726–750. https://doi.org/10.1139/t06-040 LunneT. BerreT. AndersenK. H. StrandvikS. SjursenM. 2006 Effects of sample disturbance and consolidation procedures on measured shear strength of soft marine Norwegian clays Canadian Geotechnical Journal 43 7 726 750 https://doi.org/10.1139/t06-040 Search in Google Scholar

[36] Lunne, T., Berre, T., & Strandvik, S. (1997). Sample disturbance effects in soft low plastic Norwegian clay. 81–102. LunneT. BerreT. StrandvikS. 1997 Sample disturbance effects in soft low plastic Norwegian clay 81 102 Search in Google Scholar

[37] Mayne, P. W. (2006). In-situ test calibrations for evaluating soil parameters. In K. Phoon, D. Hight, S. Leroueil, & T. Tan (Eds.), Characterisation and Engineering Properties of Natural Soils. Taylor & Francis. https://doi.org/10.1201/NOE0415426916.ch2 MayneP. W. 2006 In-situ test calibrations for evaluating soil parameters In PhoonK. HightD. LeroueilS. TanT. (Eds.), Characterisation and Engineering Properties of Natural Soils Taylor & Francis https://doi.org/10.1201/NOE0415426916.ch2 Search in Google Scholar

[38] Mayne, P. W., & Peuchen, J. (2018). Evaluation of CPTU Nkt cone factor for undrained strength of clays. Cone Penetration Testing 2018. 4th International Symposium on Cone Penetration Testing (CPT’18), Delft. MayneP. W. PeuchenJ. 2018 Evaluation of CPTU Nkt cone factor for undrained strength of clays Cone Penetration Testing 2018. 4th International Symposium on Cone Penetration Testing (CPT’18) Delft Search in Google Scholar

[39] Mesri, G., & Feng, T.-W. (2019). Constant rate of strain consolidation testing of soft clays and fibrous peats. Canadian Geotechnical Journal, 56(10), 1526–1533. https://doi.org/10.1139/cgj-2018-0259 MesriG. FengT.-W. 2019 Constant rate of strain consolidation testing of soft clays and fibrous peats Canadian Geotechnical Journal 56 10 1526 1533 https://doi.org/10.1139/cgj-2018-0259 Search in Google Scholar

[40] Mesri, G., & Godlewski, P. M. (1977). Time- and stress-compressibility interrelationship. Journal of Geotechnical and Geoenvironmental Engineering, 103(5), 417–430. MesriG. GodlewskiP. M. 1977 Time- and stress-compressibility interrelationship Journal of Geotechnical and Geoenvironmental Engineering 103 5 417 430 Search in Google Scholar

[41] Nagaraj, T. S., & Srinivasa Murthy, B. R. (1986). A critical reappraisal of compression index equations. Géotechnique, 36(1), 27–32. https://doi.org/10.1680/geot.1986.36.1.27 NagarajT. S. Srinivasa MurthyB. R. 1986 A critical reappraisal of compression index equations Géotechnique 36 1 27 32 https://doi.org/10.1680/geot.1986.36.1.27 Search in Google Scholar

[42] Nishida, Y. (1956). A Brief Note on Compression Index of Soil. Journal of the Soil Mechanics and Foundations Division, 82(3), 1027–14. https://doi.org/10.1061/JSFEAQ.0000015 NishidaY. 1956 A Brief Note on Compression Index of Soil Journal of the Soil Mechanics and Foundations Division 82 3 1027 14 https://doi.org/10.1061/JSFEAQ.0000015 Search in Google Scholar

[43] O’Kelly, B. C. (2006). Compression and consolidation anisotropy of some soft soils. Geotechnical and Geological Engineering, 24(6), 1715–1728. https://doi.org/10.1007/s10706-005-5760-0 O’KellyB. C. 2006 Compression and consolidation anisotropy of some soft soils Geotechnical and Geological Engineering 24 6 1715 1728 https://doi.org/10.1007/s10706-005-5760-0 Search in Google Scholar

[44] Pineda, J. A., Liu, X. F., & Sloan, S. W. (2016). Effects of tube sampling in soft clay: A microstructural insight. Géotechnique, 66(12), 969–983. https://doi.org/10.1680/jgeot.15.P.217 PinedaJ. A. LiuX. F. SloanS. W. 2016 Effects of tube sampling in soft clay: A microstructural insight Géotechnique 66 12 969 983 https://doi.org/10.1680/jgeot.15.P.217 Search in Google Scholar

[45] PN EN ISO 17892-5. (2017). Geotechnical investigation and testing—Laboratory testing of soil—Part 5: Incremental loading oedometer test. PN EN ISO 17892-5 2017 Geotechnical investigation and testing—Laboratory testing of soil—Part 5: Incremental loading oedometer test Search in Google Scholar

[46] Rendon-Herrero, O. (1980). Universal Compression Index Equation. Journal of the Geotechnical Engineering Division, 106(11), 1179–1200. https://doi.org/10.1061/AJGEB6.0001058 Rendon-HerreroO. 1980 Universal Compression Index Equation Journal of the Geotechnical Engineering Division 106 11 1179 1200 https://doi.org/10.1061/AJGEB6.0001058 Search in Google Scholar

[47] Rétháti, L. (1988). Probabilistic Solutions in Geotechnics. Elsevier. RéthátiL. 1988 Probabilistic Solutions in Geotechnics Elsevier Search in Google Scholar

[48] Robertson, P. K. (2016). Cone penetration test (CPT)-based soil behaviour type (SBT) classification system—An update. Canadian Geotechnical Journal, 53(12), 1910–1927. https://doi.org/10.1139/cgj-2016-0044 RobertsonP. K. 2016 Cone penetration test (CPT)-based soil behaviour type (SBT) classification system—An update Canadian Geotechnical Journal 53 12 1910 1927 https://doi.org/10.1139/cgj-2016-0044 Search in Google Scholar

[49] Roy, M., & Leblanc, A. (1988). Factors Affecting the Measurements and Interpretation of the Vane Strength in Soft Sensitive Clays. In A. Richards (Ed.), Vane Shear Strength Testing in Soils: Field and Laboratory Studies (pp. 117–117–12). ASTM International. https://doi.org/10.1520/STP10325S RoyM. LeblancA. 1988 Factors Affecting the Measurements and Interpretation of the Vane Strength in Soft Sensitive Clays In RichardsA. (Ed.) Vane Shear Strength Testing in Soils: Field and Laboratory Studies 117 117–12 ASTM International https://doi.org/10.1520/STP10325S Search in Google Scholar

[50] Roy, M., Tremblay, M., Tavenas, F., & Rochelle, P. L. (1982). Development of pore pressure in quasi-static penetration tests in sensitive clay. Canadian Geotechnical Journal, 19(1), 124–138. https://doi.org/10.1139/t82-015 RoyM. TremblayM. TavenasF. RochelleP. L. 1982 Development of pore pressure in quasi-static penetration tests in sensitive clay Canadian Geotechnical Journal 19 1 124 138 https://doi.org/10.1139/t82-015 Search in Google Scholar

[51] Santagata, M. C., & Germaine, J. T. (2002). Sampling Disturbance Effects in Normally Consolidated Clays. Journal of Geotechnical and Geoenvironmental Engineering, 128(12), 997–1006. https://doi.org/10.1061/(ASCE)1090-0241(2002)128:12(997) SantagataM. C. GermaineJ. T. 2002 Sampling Disturbance Effects in Normally Consolidated Clays Journal of Geotechnical and Geoenvironmental Engineering 128 12 997 1006 https://doi.org/10.1061/(ASCE)1090-0241(2002)128:12(997) Search in Google Scholar

[52] Scherzinger, T. (1991). Materialverhalten von Seetonen-Ergebnisse von Laboruntersuchungen und ihre Bedeutung für das Bauen in weichem Untergrund (Phd Thesis). Institute of Soil Mechanics and Rock Mechanics. ScherzingerT. 1991 Materialverhalten von Seetonen-Ergebnisse von Laboruntersuchungen und ihre Bedeutung für das Bauen in weichem Untergrund (Phd Thesis). Institute of Soil Mechanics and Rock Mechanics Search in Google Scholar

[53] Shogaki, T., & Kaneko, M. (1994). Effects of Sample Disturbance on Strength and Consolidation Parameters of Soft Clay. Soils and Foundations, 34(3), 1–10. https://doi.org/10.3208/sandf1972.34.3_1 ShogakiT. KanekoM. 1994 Effects of Sample Disturbance on Strength and Consolidation Parameters of Soft Clay Soils and Foundations 34 3 1 10 https://doi.org/10.3208/sandf1972.34.3_1 Search in Google Scholar

[54] Skempton, A. W., & Jones, O. T. (1944). Notes on the compressibility of clays. Quarterly Journal of the Geological Society, 100(1–4), 119–135. https://doi.org/10.1144/GSL.JGS.1944.100.01-04.08 SkemptonA. W. JonesO. T. 1944 Notes on the compressibility of clays Quarterly Journal of the Geological Society 100 1–4 119 135 https://doi.org/10.1144/GSL.JGS.1944.100.01-04.08 Search in Google Scholar

[55] Skempton, A. W., & Sowa, V. A. (1963). The Behaviour of Saturated Clays During Sampling and Testing. Géotechnique, 13(4), 269–290. https://doi.org/10.1680/geot.1963.13.4.269 SkemptonA. W. SowaV. A. 1963 The Behaviour of Saturated Clays During Sampling and Testing Géotechnique 13 4 269 290 https://doi.org/10.1680/geot.1963.13.4.269 Search in Google Scholar

[56] Stępkowska, E. T. (1986). Parametry geotechniczne gruntów z terenu żuław wiślanych (CPBR6.4/15.8.7). Institute of Hydroengineering. StępkowskaE. T. 1986 Parametry geotechniczne gruntów z terenu żuław wiślanych (CPBR6.4/15.8.7) Institute of Hydroengineering Search in Google Scholar

[57] Tanaka, H. (2000). Sample Quality of Cohesive Soils: Lessons from Three Sites, Ariake, Bothkennar and Drammen. Soils and Foundations, 40(4), 57–74. https://doi.org/10.3208/sandf.40.4_57 TanakaH. 2000 Sample Quality of Cohesive Soils: Lessons from Three Sites, Ariake, Bothkennar and Drammen Soils and Foundations 40 4 57 74 https://doi.org/10.3208/sandf.40.4_57 Search in Google Scholar

[58] Tanaka, H., Ritoh, F., & Omukai, N. (2002). Quality of samples retrieved from great depth and its influence on consolidation properties. Canadian Geotechnical Journal, 39(6), 1288–1301. https://doi.org/10.1139/t02-064 TanakaH. RitohF. OmukaiN. 2002 Quality of samples retrieved from great depth and its influence on consolidation properties Canadian Geotechnical Journal 39 6 1288 1301 https://doi.org/10.1139/t02-064 Search in Google Scholar

[59] Tanaka, H., Sharma, P., Tsuchida, T., & Tanaka, M. (1996). Comparative Study on Sample Quality Using Several Types of Samplers. Soils and Foundations, 36(2), 57–68. https://doi.org/10.3208/sandf.36.2_57 TanakaH. SharmaP. TsuchidaT. TanakaM. 1996 Comparative Study on Sample Quality Using Several Types of Samplers Soils and Foundations 36 2 57 68 https://doi.org/10.3208/sandf.36.2_57 Search in Google Scholar

[60] Teh, C. I., & Houlsby, G. T. (1991). An analytical study of the cone penetration test in clay. Géotechnique, 41(1), 17–34. https://doi.org/10.1680/geot.1991.41.1.17 TehC. I. HoulsbyG. T. 1991 An analytical study of the cone penetration test in clay Géotechnique 41 1 17 34 https://doi.org/10.1680/geot.1991.41.1.17 Search in Google Scholar

[61] Terzaghi, K., Peck, R. B., & Mesri, G. (1996). Soil mechanics in engineering practice (Third Edition). John Wiley & Sons Inc. TerzaghiK. PeckR. B. MesriG. 1996 Soil mechanics in engineering practice Third Edition John Wiley & Sons Inc. Search in Google Scholar

[62] Tsuchida, T. (2000). Evaluation of Undrained Shear Strength of Soft Clay with Consideration of Sample Quality. Soils and Foundations, 40(3), 29–42. https://doi.org/10.3208/sandf.40.3_29 TsuchidaT. 2000 Evaluation of Undrained Shear Strength of Soft Clay with Consideration of Sample Quality Soils and Foundations 40 3 29 42 https://doi.org/10.3208/sandf.40.3_29 Search in Google Scholar

[63] Viana da Fonseca, A., & Pineda, J. (2017). Getting high-quality samples in ‘sensitive’ soils for advanced laboratory tests. Innovative Infrastructure Solutions, 2(1), 34. https://doi.org/10.1007/s41062-017-0086-3 Viana da FonsecaA. PinedaJ. 2017 Getting high-quality samples in ‘sensitive’ soils for advanced laboratory tests Innovative Infrastructure Solutions 2 1 34 https://doi.org/10.1007/s41062-017-0086-3 Search in Google Scholar

[64] Wroth, C. P., & Wood, D. M. (1978). The correlation of index properties with some basic engineering properties of soils. Canadian Geotechnical Journal, 15(2), 137–145. https://doi.org/10.1139/t78-014 WrothC. P. WoodD. M. 1978 The correlation of index properties with some basic engineering properties of soils Canadian Geotechnical Journal 15 2 137 145 https://doi.org/10.1139/t78-014 Search in Google Scholar