Experimental Study of Rockfill Particle Breakage

Abstract:

As the high concrete faced rockfill dams construction, grain breakage gradually become the factors that influence the high dam construction which can not be ignored. This text based on the master of rockfill of shuibuya dam as the experimental material, getting and analyzing the particle breakage data under different confining pressure through the large-scale triaxial test, and the results show that the particle breakage index increases with the increase of confining pressures. The relationship between particle breakage index and confining pressure can be expressed by formula;Particle breakage increase leading to reduced internal friction angle and the shear strength of rockfill, and the author newly introduced two broken variable to describe the relationship which can be expressed by the formula between the particle breakage and internal friction angle, it has certain reference value for establishing constitutive model considering particle breakage.

• Periodical: Advanced Materials Research (Volume 900)
• Pages: 445-448
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.900.445
• Online since: February 2014
• Authors: Zhi Hua Xu, Da Wei Sun*
• Keywords: Internal Friction Angle, Measuring Index, Particle Breakage, Rockfill

References

[1] LEE K L, FARHOOMAND I. Compressibility and crushing of granular soils in anisotropic triaxial compression[J]. Canadian Geotechnical Journal, 1967, 4(1): 68–86.

DOI: 10.1139/t67-012

[2] Bai Shutian, Cui Yihao, Mechanical Properties of Rockfill [J]. Journal of hydroelectric power, 1997, (3): 21–30.

[3] Marsal R J. Large-scale testing of rockfill materials [J]. Journal of Soils Mechanics and Foundation Division, American Society of Civil Enginees, 1967, 93(2): 27－43.

[4] Hardin. Crushing of soil particles [J]. Journal of Geotechnical Engineering, American Society of Civil Engineers, 1985, 111(10): 1177–1192.

DOI: 10.1061/(asce)0733-9410(1985)111:10(1177)

[5] LADE P V, YAMAMURO J A, BOPP P A. Significance of particle crushing in granular materials[J]. Journal of Geotechnical Engineering ASCE, 1996, 122(4): 309–316.

DOI: 10.1061/(asce)0733-9410(1996)122:4(309)

[6] BIAREZ J, HICHER P Y. Influence of grading and grain breakage induced grading change on the mechanical behavior of granular materials [J]. French Journal of Civil Engineering, 1997, 1(4): 607–631.

[7] NAKATA Y, HYDE A F L, HYODO M, et al. A probabilistic approach to sand particle crushing in the triaxial test[J]. Géotechnique, 1999, 49(5): 567–583.

DOI: 10.1680/geot.1999.49.5.567

[8] EINAV I. Breakage mechanics-part I: theory[J]. Journal of the Mechanics and Physics of Solids, 2007, 55(6): 1274–1297.

DOI: 10.1016/j.jmps.2006.11.003

[9] MUIR WOOD D, MAEDA K. Changing grading of soil: effect on critical state[J]. Acta Geotechnica, 2008, 3(1): 3–14.

DOI: 10.1007/s11440-007-0041-0

[10] Zhang Jiaming, Wang Nian, Zhang Yangming, Chen Fubing. The research progress of soil particle breakage[J]. Rock and Soil Mechanics, 2003, 24: 661–665.