Abstract
In this study, 40 groups of normal contact tests under the ball-surface contact condition between the marble spherical samples and the marble cuboid samples were carried out by use of the rock rheological testing system, in which marble spherical samples were used to simulate coarse grained soil particles. The compression breakage laws and mechanical mechanism of the single coarse grained soil particle was obtained by researching failure mode, the broken process and mechanical property of the samples by means of statistical methods. Then, in order to observe the development of this process, the particle contact numerical model was established and a numerical simulation was carried out with PFC3D. Based on the experiment results, it was found that, at the beginning of loading, the coarse grained soil particle was partly broken at the contact point due to stress concentration, and an elastic core was developed after that; then, the increasing of normal contact force caused cracks near the elastic core; finally, crack transfixion occurred and the particle was totally broken. Having observed the broken particles, it was found that elastic cores of which the top surface was a sub-circular plane and the lower part was a cone appeared in all particles. Moreover, the diameter to depth ratio of the elastic core was close to 2:1. In this research, we provided a new way of study on particle breakage behavior of coarse-grained soil by researching the mechanical mechanism of particle breakage in the perspective of particle contact of coarse-grained soil.
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References
Leslie, D.D.: Large scale triaxial tests on gravelly soils, Brazil (1963)
Leslie, D.D.: Shear strength of rockfill, California (1975)
Marsal, R.J.: Large scale testing of rockfill materials. J. Soil Mech. Found. Div. ASCE. 93(02), 27–43 (1967)
Lee, K.L., Farhoomand, I.: Compressibility and crushing of granular soil in anisotropic triaxial compression. Can. Geotech. J. 04, 69–86 (1967)
Hardin, B.O.: Crushing of soil particles. J. Geotech. Eng. 111(10), 1177–1192 (1985)
Liu, H., Qin, H., Gao, Y., et al.: Experimental study on particle breakage of rockfill and coarse aggregates. Rock Soil Mech. 26(4), 562–566 (2005)
Wei, S., Zhu, J., Qian, Q., et al.: Particle breakage of coarse-grained materials in triaxial tests. Chin. J. Geotech. Eng. 34(4), 533–538 (2009)
Du, J., Hou, K., Liang, W., et al.: Experimental study of compaction characteristics and fracture in crushing of coarse-grained soils. Rock Soil Mech. 34 (suppl.1), 155–161 (2013)
Cai, Z., Li, X., Guan, Y., et al.: Particle breakage rules of rockfill materials. Chin. J. Geotech. Eng. 38(5), 923–929 (2016)
Potapov, A.V., Campbell, C.S.: Parametric dependence of particle breakage mechanisms. Powder Technol. 120(3), 164–174 (2001)
Potyondy, D.O.: Simulating stress corrosion with a bonded- particle model for rock. Int. J. Rock Mech. Min. Sci. 44(5), 677–691 (2007)
Potyondy, D.O., Cundall, P.A.: A bonded-particle model for rock. Int. J. Rock Mech. Min. Sci. 41(8), 1329–1364 (2004)
Shi, D., Zhou, J., Jia, M.: Numerical simulations of particle breakage property of sand under high pressure1D compression condition by use of particle flow code. Chin. J. Geotech. Eng. 29(5), 736–742 (2007)
Sun, J., Chen, M., Jiang, Q., et al.: Numerical simulation of mesomechanical characteristics of creep damage evolution for Jinping marble. Rock Soil Mech. 12, 3601–3608 (2013)
Zhou, J., Zhang, J., Wang, Q.: Experimental study on contact of gypsum particles. J. Tongji Univ. (Nat. Sci.) 44(1), 67–72 (2016)
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Zhou, J., Niu, Y., Zhou, Y., Zhang, J., Zhao, C. (2018). The Ball-Surface Normal Contact Experiment Research and Numerical Simulation of Coarse Grained Soil. In: Zhou, A., Tao, J., Gu, X., Hu, L. (eds) Proceedings of GeoShanghai 2018 International Conference: Fundamentals of Soil Behaviours. GSIC 2018. Springer, Singapore. https://doi.org/10.1007/978-981-13-0125-4_96
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DOI: https://doi.org/10.1007/978-981-13-0125-4_96
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