Study on the Shear Strength of Carbonate Sand by Single Shear Test

  • Lu Chuan ,
  • Li Sa ,
  • Liu Xin ,
  • Gou Leyu ,
  • Yin Jiangsong
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  • 1. Tianjin Survey Design Institute Group Co., Ltd., Tianjin 300191, P. R. China;
    2. School of Civil Engineering, Tianjin University, Tianjin 300350, P. R. China

Received date: 2024-03-17

  Online published: 2025-01-03

Abstract

The carbonate sand is the main soil material in the underground space of island reef soil. The shear strength of carbonate sand is studied by direct simple shear tests under constant volume and constant stress conditions on two kinds of carbonate sand with different relative density and by contrast tests on quartz sand with the same particle distribution gradation. The test results show that for the same particle size distribution, carbonate sand has a critical friction angle higher than that of quartz sand, its phase angle and maximum dilation angle lower than that of quartz sand. At the same time, the maximum dilation angle, phase angle and critical friction angle of carbonate sand are affected by particle breakage, of which the maximum dilation angle and critical friction angle decrease with the increase of breakage, while the phase angle increases with the increase of breakage. In this study, the critical friction angle and dilation angle are considered as the "effect angle" of particle breakage. By introducing the relative density that affects particle breakage, a calculation model for the maximum internal friction angle of carbonate sand based on the existing evaluation methods is proposed.

Cite this article

Lu Chuan , Li Sa , Liu Xin , Gou Leyu , Yin Jiangsong . Study on the Shear Strength of Carbonate Sand by Single Shear Test[J]. Chinese Journal of Underground Space and Engineering, 2024 , 20(6) : 1904 -1912 . DOI: 10.20174/j.JUSE.2024.06.16

References

[1] 吴京平, 褚瑶, 楼志刚. 颗粒破碎对钙质砂变形及强度特性的影响[J]. 岩土工程学报, 1997, 19(5): 49-55.(Wu Jingping, Chu Yao, Lou Zhigang. Influence of particle breakage on deformation and strength properties of calcareous sands[J]. Chinese Journal of Geotechnical Engineering, 1997, 19(5): 49-55. (in Chinese))
[2] 刘崇权,汪稔.钙质砂物理力学性质初探[J].岩土力学,1998,19(1):32-37.(Liu Chongquan, Wang Ren. Simulation of shotcrete in tunnel by means of curve structure element[J]. Rock and Soil Mechanics, 1998,19(1):32-37. (in Chinese))
[3] 刘崇权,单华刚,汪稔.钙质土工程特性及其桩基工程[J].岩石力学与工程学报,1999,3(3):331-335.(Liu Chongquan, Shan Huangang, Wang Ren. The geotechnical characters of calcareous soils and the pile foundation engineering[J]. Chinese Journal of Rock Mechanics and Engineering, 1999,3(3):331-335. (in Chinese))
[4] 汪轶群, 洪义, 国振,等. 南海钙质砂宏细观破碎力学特性[J].岩土力学,1998,19(1):32-37.(Wang Yiqun,Hong Yi,Guo Zhen,et al. Micro-and macro-mechanical behavior of crushable calcareous sand in South China Sea[J]. Rock and Soil Mechanics, 1998,19(1):32-37. (in Chinese))
[5] 申春妮,方祥位,姚志华,等. 珊瑚砂微生物固化体三轴压缩声发射试验研究[J]. 地下空间与工程学报, 2020,16(1):134-140.(Shen Chunni,Fang Xiangwei,Yao Zhihua,et al. Triaxial compression with acoustic emission test of biocemented coral sand[J]. Chinese Journal of Underground Space and Engineering, 2020,16(1):134-140. (in Chinese))
[6] 刘杰,姚志华,翁兴中,等. 三轴剪切下珊瑚砂颗粒破碎规律及强度特征[J]. 地下空间与工程学报,2021,17(5): 1463-1471.(Liu Jie,Yao Zhihua,Weng Xingzhong, et al. Particles breaking regularity and strength characteristics of coral sand under triaxial shear conditions[J]. Chinese Journal of Underground Space and Engineering, 2021,17(5): 1463-1471. (in Chinese))
[7] Bolton M D. Thestrength and dilatancy of sands[J]. Geotechnique, 1986, 36(1): 65-78.
[8] Guo P J, Su X B. Shear strength, interparticle locking, and dilatancy of granular materials[J]. Canadian Geotechnical Journal, 2007, 44(6): 579-591.
[9] Vaid Y P, Sasitharan S. The strength and dilatancy of sand[J]. Canadian Geotechnical Journal, 1992, 29(3): 522-526.
[10] Chakraborty T, Salgado R. Dilatancy and shear strength of sand at low confining pressures[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2010, 136(3): 527-532.
[11] Esposito III M P, Andrus R D. Peak shear strength and dilatancy of a pleistocene age sand[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2017, 143(1): 04016079.
[12] 余示章. 钙质砂单剪试验及宏细观力学分析[D]. 天津: 天津大学, 2018.(Yu Shizhang. The simple shear test of carbonate sand and macroscopic and microscopic mechanical analysis[D]. Tianjin: Tianjin University,2018. (in Chinese))
[13] Roscoe K H, Schofield A N, Worth C P. On the yielding of soils[J].Geotechnique, 1958, 8(1): 22-53.
[14] Verdugo R, Ishihara K. The steady state of sandy soils[J]. Soils and Foundations, 1996, 36(2): 81-91.
[15] Konrad J M. Sand state from cone penetrometer tests: A framework considering grain crushing stress[J].Geotechnique, 1998, 48(2): 651-652.
[16] 张林,李同录,李纪恒,等.不同吸力和应力路径下Q3原状黄土的力学特性[J].地下空间与工程学报,2023,19(4):1125-1133.(Zhang lin,Li Tonglu,Li Jiheng,et al.Study on mechanical properties of Q3 undisturbed loess under different suctions and stress paths[J].Chinese Journal of Underground Space and Engineering,2023,19(4):1125-1133.(in Chinese))
[17] 侯乐乐,翁效林,周容名,等.结构性黄土的各向异性临界状态模型[J].地下空间与工程学报,2023,19(4):1077-1086.(Hou Lele,Weng Xiaolin,Zhou Rongming,et al.Anisotropic critical state constitutive model of structural loess[J].Chinese Journal of Underground Space and Engineering,2023,19(4):1077-1086.(in Chinese))
[18] Coop M R, Sorensen K K, Freitas T M, et al. Particle breakage during shearing of a carbonate sand[J]. Geotechnique, 2004, 54(3): 157-163.
[19] Bandini V, Coop M R. The influence of particle breakage on the location of thecritical state line of sands[J]. Soils and Foundations, 2011, 51(4): 591-600.
[20] Rowe P W. The stress-dilatancy relation for static equilibrium of an assembly of particles in contact[J]. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 1962, 269(1339): 500-527.
[21] Ueng T S, Chen T J. Energy aspects of particle breakage in drained shear of sands[J]. Geotechnique, 2000, 50(1): 65-72.
[22] 张家铭, 张凌, 蒋国盛, 等. 剪切作用下钙质砂颗粒破碎试验研究[J]. 岩土力学, 2008, 29(10): 2789-2793.(Zhang Jiaming, Zhang Ling, Jiang Guosheng, et al. Research on particle crushing of calcareous sands under triaxial shear[J]. Rock and Soil Mechanics, 2008, 29(10): 2789-2793. (in Chinese))
[23] Jeng C J, Li J C. Fabric of the hydraulic filled sand with flat particles and its variation after shearing[A]//Procceedings 7th Conference Current Research[C]. Geotechnical Engineering Taiwan, China, 1997:1-8.
[24] Shang G W, Sun L Q, Li S,et al. Experimental study of the shear strength of carbonate gravel[J].Bulletin of Engineering Geology and the Environment,2020, 79: 2381-2394.
[25] Hardin B O. Crushing of soil particles[J]. Journal of Geotechnical Engineering, 1985, 111(10): 1177-1192.
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