Abstract
The deposition of excavated natural soils, e.g. in open pit mines or during land reclamation, produces in general lumpy soils with multimodal pore sizes. The mechanical behaviour of such soils is determined by interaction between the firm to stiff lumps and the soft to liquid soil material in the macrovoids between the lumps. The initial skeleton composed of lumps resembles a coarse grained soil. However, contrary to mineral grains, the macrograins (lumps) are not incompressible and time-independent. Due to rising overburden during the subsequent deposition of the excavated soil, a time-dependent deformation of the lumps takes place, being accompanied by a softening of the lumps’ surface. The space between the lumps, originally occupied by air, becomes gradually filled with that soft material. A constitutive description of the lumpy soils should take into account all the mentioned effects. In this paper, main ideas and fundamentals for the constitutive modelling of the relevant phases of lumpy soils are outlined. With help of a homogenization method, a material model suitable for practical applications can be obtained.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Herbstová, V., Herle, I.: Structure transitions of clay fills in North-Western Bohemia. Eng. Geol. 104(3–4), 157–166 (2009). https://doi.org/10.1016/j.enggeo.2008.10.001
Herle, I., Mašín, D., Kostkanová, V., Karcher, C., Dahmen, D.: Experimental investigation and theoretical modelling of soft soils from mining deposits. In: International Symposium on Deformation Characteristics of Geomaterials, Seoul, South Korea, pp. 858–864 (2011)
Kostkanová, V., Herle, I., Bohác, J.: Transitions in structure of clay fills due to suction oscillations. Procedia Earth Planet. Sci. 9, 153–162 (2014). https://doi.org/10.1016/j.proeps.2014.06.011
Schwiteilo, E., Herle, I., Dahmen, D., Karcher, C.: Change in consistency limits as a result of mixing processes in soils (Änderung der Konsistenzgrenzen bei Mischvorgängen an Böden). World Min. - Surf. Undergr. 68(6), 376–384 (2016)
Shi, X., Herle, I.: Laboratory investigation of artificial lumpy materials. Eng. Geol. 183, 303–314 (2014). https://doi.org/10.1016/j.enggeo.2014.10.020
Shi, X., Herle, I.: Modeling the compression behavior of remolded clay mixtures. Comput. Geotech. 80, 215–225 (2016). https://doi.org/10.1016/j.compgeo.2016.07.007
Shi, X., Herle, I.: A model for natural lumpy composite soils and its verification. Int. J. Solids Struct. 121, 240–256 (2017). https://doi.org/10.1016/j.ijsolstr.2017.05.033
Shi, X., Herle, I.: Laboratory investigation of two basic configurations for inhomogeneous soils. Eur. J. Environ. Civil Eng. 21(2), 206–237 (2017). https://doi.org/10.1080/19648189.2015.1110056
Shi, X.S., Herle, I.: Compression and undrained shear strength of remoulded clay mixtures. Géotech. Lett. 5(2), 62–67 (2015). https://doi.org/10.1680/geolett.14.00089
Shi, X.S., Herle, I.: Analysis of the compression behavior of artificial lumpy composite materials. Int. J. Numer. Anal. Meth. Geomech. 40(10), 1438–1453 (2016). https://doi.org/10.1002/nag.2493
Shi, X.S., Herle, I.: Structure transition of lumpy landfills with increasing stress level. Q. J. Eng. Geol.Hydrogeol. 49(4), 336–343 (2016). https://doi.org/10.1144/qjegh2015-093
Shi, X.S., Herle, I.: Numerical simulation of lumpy soils using a hypoplastic model. Acta Geotech. 12(2), 349–363 (2017). https://doi.org/10.1007/s11440-016-0447-7
Shi, X.S., Herle, I.: Undrained shear strength and water content distribution of remoulded clay mixtures. Geotechnik 40(1), 60–63 (2017). https://doi.org/10.1002/gete.201500031
Shi, X.S., Herle, I., Bergholz, K.: A nonlinear Hvorslev surface for highly overconsolidated soils: elastoplastic and hypoplastic implementations. Acta Geotech. 12(4), 809–823 (2017). https://doi.org/10.1007/s11440-016-0485-1
Shi, X.S., Herle, I., Muir Wood, D.: A consolidation model for lumpy composite soils in open-pit mining. Géotechnique 68(3), 189–204 (2018). https://doi.org/10.1680/jgeot.16.P.054
Shi, X.S., Herle, I., Yin, J.: Laboratory study of the shear strength and state boundary surface of a natural lumpy soil. J. Geotech. Geoenviron. Eng. 144(12), 04018093 (2018). https://doi.org/10.1061/(ASCE)GT.1943-5606.0001987
Uhlig, M., Herle, I., Karcher, C.: Determination of time-dependent undrained shear strength of mining landfill. In: Wuttke, F., Bauer, S., Sánchez, M. (eds.) Energy Geotechnics, pp. 397–403. Taylor & Francis Group, Milton Park (2016)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Switzerland AG
About this paper
Cite this paper
Herle, I., Shi, X.S., Karcher, C. (2020). Constitutive Modelling of Multiporous Lumpy Soils. In: Triantafyllidis, T. (eds) Recent Developments of Soil Mechanics and Geotechnics in Theory and Practice. Lecture Notes in Applied and Computational Mechanics, vol 91. Springer, Cham. https://doi.org/10.1007/978-3-030-28516-6_1
Download citation
DOI: https://doi.org/10.1007/978-3-030-28516-6_1
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-28515-9
Online ISBN: 978-3-030-28516-6
eBook Packages: EngineeringEngineering (R0)