Abstract
Evaluating the behavior of a railway subgrade, especially if it is constituted of fine-grained materials, requires consideration of the unsaturated aspect of their behavior and the characteristics of railway traffic. In this study, interest is focused on the characterization of the mechanical behavior of subgrade soil on a cut section of a railway located in Gabon. More specifically in analyzing the effect of the increase in the axle load on the subgrade material by consolidated undrained (CU) triaxial tests on reconstituted soil specimens. The studied material is known as pelite or mud. The objective of this study is first to perform monotonic CU triaxial tests to determine the failure characteristics under fully and near saturated condition and to analyze the effects of the saturation degree and void ratio on the soil strength. Cyclic CU triaxial tests were then performed to study the accumulation of the deformation within the studied material during cyclic loading. Monotonic CU triaxial tests showed that in the near saturated condition, the subgrade material already exhibited much greater strength but in the fully saturated condition, its strength was strongly reduced. Its stress-deformation behavior can change from ductile to brittle between fully and near saturated condition. Cyclic CU triaxial tests showed that in the fully saturated condition, the accumulated permanent deformations due to the passage of the heaviest axle stabilize but remain quite large. However, in the near saturated condition, the accumulated deformations are reversible as the soil is denser.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
References
Abdullah HH, Shahin MA, Walske ML (2019) Geo-mechanical behavior of clay soils stabilized at ambient temperature with fly-ash geopolymer-incorporated granulated slag. Soils Found 59(6):1906–1920
AFNOR (1992) Exécution des terrassements - classification des matériaux utilisables dans la construction des remblais et des couches de forme d’infrastructures routières
AFNOR (1994) Sols: Reconnaissance et essais - essais à l’appareil triaxial de révolution - appareillage - préparation des éprouvettes - essai (UU) non consolidé non drainé - essai (CU+u) consolidé non drainé avec mesure de pression interstitielle – essai (CD) consolidé drainé
AFNOR (2000) Sols: Reconnaissance et essais: Contrôle de la qualité du compactage: Méthode au pénétromètre dynamique à énergie variable - Principe et méthode d’étalonnage du pénétromètre - Exploitation des résultats - Interprétation
Akbarimehr D, Eslami A, Imam R (2021) Correlations between compression index and index properties of undisturbed and disturbed Tehran clay. Geotech Geol Eng 39:5387–5393
ASTM (2003) Standard test method for measurement of soil potential (suction) using filter paper. ASTM International, West Conshohocken PA
ASTM (2011) Standard practice for classification of soils for engineering purposes (unified soil classification system). ASTM International, West Conshohocken PA
Bartetzko A, Kopf AJ (2007) The relationship of undrained shear strength and porosity with depth in shallow (<50 m) marine sediments. Sediment Geol 196(1-4):235–249
Bishop A, Wesley L (1975) A hydraulic triaxial apparatus for controlled stress path testing. Geotechnique 25(4):657–670
Blake W, Gilbert R (1997) Investigation of possible relationship between undrained shear strength and shear wave velocity for normally consolidated clays. In: Offshore technology conference. OnePetro
Boussinesq J (1885) Application des potentiels à l’étude de l’équilibre et du mouvement des solides élastiques. Mémoires de la société des sciences de l’agriculture et des arts de Lille
Bravo EL, Suárez MH, Cueto OG, Tijskens E, Ramon H (2012) Determination of the basics mechanical properties in a tropical clay soil as a function of dry bulk density and moisture. Rev Cien Tec Agropecu 21:5–11
Brooker EW, Ireland HO (1965) Earth pressures at rest related to stress history. Can Geotech J 2(1):1–15
Brooks RH, Corey AT (1964) Hydraulic properties of porous media. Colorado State University hydrology paper
Burrow M, Bowness D, Ghataora G (2007) A comparison of railway track foundation design methods. Proc Inst Mech Eng Part F J Rail Rapid Transit 221(1):1–12
Calon N (2016) Rôle de la couche intermédiaire dans le potentiel de la voie ferrée. PhD thesis, Université Paris - Est
Chang I, Cho G-C (2010) A new alternative for estimation of geotechnical engineering parameters in reclaimed clays by using shear wave velocity. Geotech Test J 33:171–182
Dolinar B (2010) Predicting the normalized, undrained shear strength of saturated fine-grained soils using plasticity-value correlations. Appl Clay Sci 47:428–432. https://doi.org/10.1016/j.clay.2009.12.013
Doyle NF (1980) Railway track design: a review of current practice. Australian Government Publishing Service, Canberra
Duong TV (2013) Etude du comportement hydromécanique des plateformes ferroviaires anciennes en vue du renforcement par soil-mixing. PhD thesis, Université Paris – Est
Duong TV, Cui Y-J, Tang AM, Calon N, Robinet A (2015) Assessment of conventional French railway sub-structure: a case study. Bull Eng Geol Environ 74(1):259–270
Elkady T, Al-Mahbashi A (2017) Effect of solute concentration on the volume change and shear strength of compacted natural expansive clay. Environ Earth Sci 76:483
Eslami A, Akbarimehr D (2021) Failure analysis of clay soil-rubber waste mixture as a sustainable construction material. Constr Build Mater 310:125274
Fourie A, Irfan T, Queiroz de Carvalho J, Simmons J, Wesley L (2012) Microstructure, mineralogy and classification of residual soils. In: Blight GE, Leong EC (eds) Mechanics of residual soils. CRCPress
Fredlund DG, Rahardjo H, Fredlund MD (2012) Unsaturated soil mechanics in engineering practice. John Wiley Sons Inc, New York, United States
Gidel G, Hornych P, Chauvin J-J, Breysse D, Denis A (2001) Nouvelle approche pour l’étude des déformations permanentes des graves non traitées à l’appareil triaxial à chargements répétés. Bull Liaison Lab Ponts Chaussées 233:5–21
Głuchowski A, Szymański A, Sas W (2015) Repeated loading of cohesive soil–shakedown theory in undrained conditions. Stud Geotech Mech 37(2)
Lamas-Lopez F (2016) Etude ‘in-situ’ et en laboratoire sur le comportement dynamique des matériaux constitutifs des plateformes ferroviaires classiques dans le contexte d’augmentation du trafic. PhD thesis, Université Paris - Est
Larew H, Leonards G (1962) A strength criterion for repeated loads. Highw Res Board Proc 41
Leal AN, Kaliakin VN (2013) Behavior of cohesive soils subjected to cyclic loading: an extensive review of pertinent literature. Research report, Department of Civil and Environmental Engineering University of Delaware Newark, Delaware, U.S.A
Li D, Selig ET (1995) Evaluation of railway subgrade problems. Transp Res Rec 1489:17
Loh BH (2011) Behaviour of railway track subgrade under cyclic loading. PhD thesis, Curtin University
Nawaf Maaitah O, Atta-Allah Mahadin S (2004) Variation on shear strength of unsaturated subgrade causes road cracks. J Appl Sci 4(3):335–339
Oh T-M, Bang E-S, Cho G-C, Park E-S (2017) Estimation of undrained shear strength for saturated clay using shear wave velocity. Mar Georesour Geotechnol 35(2):236–244
Peralta P (2010) Investigations on the behavior of large diameter piles under long- term lateral cyclic loading in cohesionless soil. Institut für Geotechnik (IGtH), Leibniz-Universität Hannover
Rigo ML, Pinheiro RJB, Bressani LA, Bica AVD, Silveira RM (2006) The residual shear strength of tropical soils. Can Geotech J 43(4):431–447
Salour F, Erlingsson S (2016) Characterisation of permanent deformation of silty sand subgrades from multistage rlt tests. Procedia Eng 143:300–307
Sánchez M, Wang D, Briaud J-L, Douglas C (2014) Typical geomechanical problems associated with railroads on shrink-swell soils. Transp Geotech 1(4):257–274
Sangrey D, Henkel D, Esrig MI (1969) The effective stress response of a saturated clay soil to repeated loading. Can Geotech J 6(3):241–252
Shajarati A, Sørensen KW, Nielsen SK, Ibsen LB (2012) Behaviour of cohesionless soils during cyclic loading. Department of Civil Engineering, Aalborg University
Soltani A, Taheri A, Deng A, O’Kelly BC (2022) Stabilization of a highly expansive soil using waste-tire-derived aggregates and lime treatment. Case Stud Constr Mater 16:e01133
Sudhakar MR (2013) Volume change of tropical residual soils. In: Huat BBK, Toll DG, and Prasad A (Eds.), Handbook of tropical residual soils engineering, CRC Press, pp. 149–184
Terzaghi K (1925) Erdbaumechanik Auf Bodenphysikalischer Grundlage. F. Deuticke
Townsend FC (1985) Geotechnical characteristics of residual soils. J Geotech Eng 111(1):77–94
Trinh V-N (2011) Comportement hydromécanique des matériaux constitutifs de plateformes ferroviaires anciennes. PhD thesis, Université Paris - Est
Vanapalli SK, Han Z (2013) Prediction of the resilient modulus of unsaturated fine-grained soils. In: Proceedings of international conference on advances in civil engineering, AETACE
Yang S-R, Huang W-H, Tai Y-T (2005) Variation of resilient modulus with soil suction for compacted subgrade soils. Transp Res Rec 1:99–106
Yasuhara K, Yamanouchi T, Hirao K (1982) Cyclic strength and deformation of normally consolidated clay. Soils Found 22(3):77–91
Yoka B, Morvan M, Breul P (2021) Study of the volumetric behavior of a residual tropical clay. Eur J Environ Civ Eng 1–17
Zergoun M (1991) Effective stress response of clay to undrained cyclic loading. PhD thesis, University of British Columbia
Zhang T, Cui Y, Lamas-Lopez F, Calon N, Costa D’Aguiar S (2016) Modelling stress distribution in substructure of French conventional railway tracks. Constr Build Mater 116:326–334
Acknowledgements
Special thanks to SETRAG (company exploiting the Trans-Gabon Railway) and COMILOG (Ogooué Mining Company) for supporting this research project. The authors also thank the national agency of Gabon scholarships (ANBG).
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Bilal Yoka, Mathilde Morvan, and Pierre Breul. The first draft of the manuscript was written by Bilal Yoka and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Yoka, B., Morvan, M. & Breul, P. Characterization of the mechanical behavior of the fine soil of railway subgrade under heavy train loading. Bull Eng Geol Environ 82, 390 (2023). https://doi.org/10.1007/s10064-023-03401-2
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DOI: https://doi.org/10.1007/s10064-023-03401-2