Abstract
This work, based on the data of two earthworks recently completed on two sites near Lake Trasimeno (Central Italy), examines the consequences of the enforcement in Europe of the fall-cone test for the Liquid Limit (LLcone) instead of the Casagrande cup (LLcup). This new standard has been incorporated in the latest Italian soil classification (UNI 11531-1:2014), substituting the previous one (UNI 10006:2002). A set of 28 soil samples was analysed: the research shows that LLcone is always greater than LLcup. According to the old standard, all samples were suitable for the works planned but, according to the new one, 18 % of samples became unsuitable. This is in spite of the fact that there is nothing to show that the old classification was “unsafe.” The new standard (based on LLcone) restricts the choice of materials, so that not only will costs for earthworks increase in the future but, paradoxically, because of the new standard, thousands of kilometers of properly working old levées became suddenly “unsafe.” The results suggest that soil classification criteria for earthworks should be reconsidered in order to transform the conventional “index properties” to sound physical characteristics.
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References
AASHTO M145-82 (1993) Standard method of test for the classification of soils and soil-aggregate mixtures for highway construction purposes. American Association of State Highway and Transportation Officials
Andrade FA, Al-Qureshi HA, Hotza D (2011) Measuring the plasticity of clays: a review. Appl Clay Sci 51(1–2):1–7
ASTM D1557-12 (2012) Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2700 kN-m/m3)). ASTM International, West Conshohocken, PA. www.astm.org. doi:10.1520/D1557-12
ASTM D422-63(2007)e2 Standard test method for particle-size analysis of soils [online]. ASTM International, West Conshohocken, PA. www.astm.org. doi:10.1520/D0422-63R07E02
ASTM D3289-08 (2008) Standard test method for density of semi-solid and solid bituminous materials (Nickel Crucible method), ASTM International, West Conshohocken, PA. www.astm.org. doi:10.1520/D3282-08
ASTM D4318-10e1 (2010) Standard test methods for liquid limit, plastic limit, and plasticity index of soils. ASTM International, West Conshohocken, PA. www.astm.org. doi:10.1520/D4318
ASTM D6026-13 (2013) Standard practice for using significant digits in geotechnical data [online]. ASTM International, West Conshohocken, PA. www.astm.org. doi:10.1520/D6026
Belviso R, Ciampoli S, Cotecchia V, Federico A (1985) Use of the cone penetrometer to determine consistency limits. Ground Eng 18(5):21–22
Bicalho KV, Gramelich JC, Cunha DS (2014) Comparação entre os valores do limite de liquidez obtidos pelos métodos de Casagrande e cone para solos argilosos brasileiros Comparison between Casagrande cup and cone penetrometer test for determining liquid limit of different Brazilian clays. Comunicações Geológicas 101, Especial III, pp 1097–1099
Burzigotti R, Dragoni W, Evangelisti C, Gervasi L (2003) The role of lake Trasimeno (Central Italy) in the history of hydrology and water management. In: Proceedings of 3rd IWHA conference, Bibliotheca Alexandrina, 11–14 Dec 2003, Alexandria-Egypt, pp 18. Available from http://utenti.unipg.it/dragoni/laghi05/files/2003_trasimeno_a.pdf
Calabresi G, Colleselli F, Danese D, Giani G, Mancuso C, Montrasio L, Nocilla A, Pagano L, Reali E, Sciotti A (2013) Research study of the hydraulic behaviour of the Po River embankments. Can Geotech J 50(9):947–960
Campbell DJ (1975) Liquid limit determination of arable top soils using a drop-cone penetrometer. J Soil Sci 26(3):234–240
Candio S, Damiani AV, Federico A, Setti M, Veniale F, Vinti G (1992) Caratterizzazione geotecnica e mineralogica di unità argillose dell’Umbria. Geologia Applicata e Idrogeologia XXVII:123–133 (in Italian)
Casagrande A (1958) Notes on the design of the liquid limit device. Géotechnique 8(2):84–91
CEN ISO/TS 17892-12 (2004) Geotechnical investigation and testing—Laboratory testing of soil—Part 12: determination of Atterberg limits [online]. European Committee for Standardization. Available from https://www.iso.org/obp/ui/#iso:std:iso:ts:17892:-12:ed-1:v1:en. Accessed 23 March 2015
Christaras B (1991) A comparison of the Casagrande and fall cone penetrometer methods for liquid limit determination in marls from Crete, Greece. Eng Geol 31:131–142
Colleselli F (2003) Stabilità e sicurezza delle arginature fluviali. In: 1th Corso di aggiornamento professionale in Geotecnica e fondazioni, Ferrara (Italy), 10 Feb 2003, pp 32
Di Matteo L (2012) Liquid limit of low- to medium-plasticity soils: comparison between Casagrande cup and cone penetrometer test. Bull Eng Geol Environ 71(1):79–85
Di Matteo L, Valigi D, Cambi C (2013) Climatic characterization and response of water resources to climate change in limestone areas: some considerations on the importance of geological setting. J Hydrol Eng 18(7):773–779
Dragoni W (1982) Idrogeologia del lago Trasimeno: sintesi, problemi, aggiornamenti. Geografia Fisica Dinamica Quaternaria 5:192–206 (in italian)
Dragoni W (1998) Some considerations on climatic changes, water resources and water needs in the Italian region south of the 43°N. In: Issar A, Brown N (eds) Water, environment and society in times of climatic change. Kluwer, Rome, pp 241–271
Dragoni W, Prosperini N, Vinti G (2008) Some observations on the procedures for the determination of the liquid limit: an application on Plio-Pleistocenic clayey soils from Umbria region (Italy). Ital J Eng Geol Environ Spec Issue 1:185–197
Dragoni W, Melillo M, Giontella C (2012) Bilancio idrico del Lago Trasimeno. In: Martinelli A (ed) Tutela Ambientale del lago Trasimeno. Arpa Umbria book, pp 403. ISBN: 978-88-905920-03 (in Italian)
EN ISO 14688-1:2002/A1:2013. Geotechnical investigation and testing—identification and classification of soil—part 1: identification and description, Amendment 1. Available from http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=57690
Feng T-W (2004) Using small ring and a fall-cone to determine the plastic limit. J Geotec Geoenviron Eng 130(6):630–635
Fojtová L, Marschalko M, Franeková R, Kovář L (2009) Study of compatibility of methods for liquid limit measurement according to Czech State Standard and newly adopted European Standard. GeoSci Eng LV(1):55–68
Grønbech G, Nielsen BN, Ibsen LB (2010) Comparison of plasticity index of søvind marl found by use of casagrande cup, fall cone apparatus and loss on ignition. Aalborg: Department of Civil Engineering, Aalborg University (DCE technical reports; no. 87), http://vbn.aau.dk/files/39623167/Comparison%20of%20Plasticity%20Index%20of%20S%C3%B8vind%20Marl%20found%20by%20use%20of%20Casagrande%20Cup,%20Fall%20Cone%20apparatus%20and%20Loss%20on%20Ignition.pdf
Grønbech GL, Nielsen BN, Ibsen LB (2011) Comparison of liquid limit of highly plastic clay by means of casagrande and fall cone apparatus. In: Proceedings of the Pan American geotechnical conference, 7 pp
Haigh SK (2012) Mechanics of the Casagrande liquid limit test. Can Geotech J 49(9):1015–1023. doi:10.1139/t2012-066
Haigh SK, Vardanega PJ, Bolton MD (2013) The plastic limit of clays. Géotechnique 63(6):435–440
Haque ME, Nairuzzaman M, Sayem HM, Imam MH (2013) Evaluation and variation of Shrinkage parameters of the Madhupur clay samples of Savar and Dhaka and their relation with clay minerals. Bangladesh Geosci J 19:1–14
Houlsby GT (1982) Theoretical analysis of the fall cone test. Géotechnique 32(2):111–118
Jefferson I, Rogers CDF (1998) Liquid limit and the temperature sensitivity of clays. Eng Geol 49(2):95–109
Koumoto T, Houlsby GT (2001) Theory and practice of the fall cone test. Géotechnique 51(8):701–712
Legates DR, McCabe GJ (1999) Evaluating the use of “goodness-of-fit” Measures in hydrologic and hydroclimatic model validation. Water Resour Res 35(1):233–241
Leroeuil S, Le Bihan JP (1996) Liquid limits and fall cones. Can Geotech J 33:793–798
Medhat F, Whyte IL (1986) An appraisal of soil index tests. Eng Geol Spec Publ 2:317–323
Netterberg F (2013) Comments on geotechnical properties of Adapazari silt by E. Arel and A. Önalp in bulletin of engineering geology and the environment (2012) 71:709–720. Bull Eng Geol Environ 72(3–4):629–630
Özer M (2009) Comparison of liquid limit values determined using the hard and soft base Casagrande apparatus and the cone penetrometer. Bull Eng Geol Environ 68:289–296
Pinard MI, Netterberg F (2012) Comparison of test methods and implications on materials selection for road construction. In: Proceedings of 2nd African Community Access Programme (AFCAP 2) conference, Maputo, pp 20
Radford TA (2012) Earthworks in Europe. Geological Society, London. Engineering Geology Special Publications, vol 26, pp 1–4
Sampson LR, Netterberg F (1984) A cone penetration method for measuring the liquid limits of South African soils. In: Proceedings of 8th regional conference for Africa on soil mechanics and foundation engineering, Harare, vol 1, pp 105–114
Sampson LR, Netterberg F (1985) The cone penetration index: a simple new soil index test to replace the plasticity index. In: Proceedings of 11th international conference on soil mechanics and foundation engineering, San Francisco, pp 1041–1048
Sherwood PT, Ryley MD (1970) An investigation of a cone penetrometer method for the determination of the liquid limit. Géotechnique 2:203–208
Spagnoli G (2012) Comparison between Casagrande and drop-cone methods to calculate liquid limit for pure clay. Can J Soil Sci 92(6):859–864
Sridharan A, Nagaraj HB (1999) Absorption water content and liquid limit of soils. Geotech Test J 22(2):127–133
Sridharan A, Prakash K (1998) Liquid limit and fall cone: discussion. Can Geotech J 35(2):407–408
Sridharan A, Prakash K (2000) Percussion and cone methods of determining the liquid limit of soils: controlling mechanisms. Geotech Test J 23(2):236–244
Terzaghi K, Peck RB, Mesri G (1996) Soil mechanics in engineering practice, 3rd edn. Wiley, New York, p 549
UNI 10006:2002 Costruzione e manutenzione delle strade—Tecniche di impiego delle terre (in Italian). Ente Italiano di Normazione, http://www.uni.com/
UNI 11531-1:2014 Costruzione e manutenzione delle opere civili delle infrastrutture—Criteri per l’impiego dei materiali—Parte 1: Terre e miscele di aggregati non legati (in Italian). Ente Italiano di Normazione. Available from http://store.uni.com/magento-1.4.0.1/index.php/uni-11531-1-2014.html
Vardanega PJ, Haigh SK (2014) The undrained strength – liquidity index relationship. Can Geotech J 51(9):1073–1086
Wasti Y, Bezirci MH (1986) Determination of the consistency limits of soils by the fall-cone test. Can Geotech J 23(2):241–246
Williams AAB, Donaldson G (1980) Building on expansive soils in South Africa. In: Proceedings of the 4th international conference on expansive soils. Denver, vol 2, pp 834–844
Acknowledgments
The authors are grateful for the technical support provided by Giuseppe Vinti, technician of the “Laboratorio di Geologia Applicata” of Perugia University. Special thanks are due to Arch. Enrica Capponi – Managing Director of ISTEDIL (Perugia) — for endorsing the study.
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Di Matteo, L., Dragoni, W., Cencetti, C. et al. Effects of fall-cone test on classification of soils: some considerations from study of two engineering earthworks in Central Italy. Bull Eng Geol Environ 75, 1629–1637 (2016). https://doi.org/10.1007/s10064-015-0808-8
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DOI: https://doi.org/10.1007/s10064-015-0808-8