Advertisement

Numerical Investigations on Shear Behavior and Failure Mechanism of Non-persistent Jointed Rocks

  • Yujing Jiang
  • Peng Yan
  • Yahua Wang
  • Hengjie LuanEmail author
  • Yongqiang Chen
Original Paper
  • 6 Downloads

Abstract

The shear behavior of the discontinuities has a significant influence on the stability of rock engineering. In this paper, the numerical and experimental direct shear tests were performed to investigate the shear behavior of non-persistent jointed rocks. Through a comprehensive calibration of shear stress-displacement curves and failure mode, good agreement was successfully achieved. Further numerical analysis was conducted to study the macro–micro failure mechanism. The results indicate that the shear failure of fractured rock mass begins at the end of crack in the rock mass where the crack initiation appears and as the crack expands inward of rock a macroscopic shear fracture zone is formed along the fracture plane finally. The rotation radian of particles appears obvious zoned phenomenon. The particles with larger rotation radian are mainly distributed at the location where the cracks occurred. The process of specimen failure is the process of unceasing redistribution of the rotation radians of particles inside the specimen. The distribution of contact force is obviously regional and directional and the distribution area of crack is always consistent with that of compressive stress concentration. The failure process of rock is the process of energy dissipation within the specimen, and the failure of the specimen is a kind of instability phenomenon driven by energy.

Keywords

Non-persistent jointed rocks Shear test Macro–micro mechanism Damage evolution 

Notes

Acknowledgements

This work is supported by the National Natural Science Foundation of China (Nos. 51379117 and 51479108), Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents (2015RCJJ048) and Provincial Natural Science Foundation of Shandong Province, China (ZR2017PEE018).

References

  1. Azevedo NM, Candeias M, Gouveia F (2015) A rigid particle model for rock fracture following the Voronoi tessellation of the grain structure: formulation and validation. Rock Mech Rock Eng 48(2):535–557CrossRefGoogle Scholar
  2. Bai S, Ren W, Zhou S, Feng D (1999) Research on the strength behavior of rock containing coplanar close intermittent joints by direct shear test. Rock Soil Mech 20(2):10–16Google Scholar
  3. Barton N, Choubey V (1977) The shear strength of rock joints in theory and practice. Rock Mech 10(1–2):1–54CrossRefGoogle Scholar
  4. Bewick RP, Kaiser PK, Bawden WF et al (2014a) DEM simulation of direct shear: 1. Rupture under constant normal stress boundary conditions. Rock Mech Rock Eng 47(5):1647–1671CrossRefGoogle Scholar
  5. Bewick RP, Kaiser PK, Bawden WF (2014b) DEM simulation of direct shear: 2. Grain boundary and mineral grain strength component influence on shear rupture. Rock Mech Rock Eng 47(5):1673–1692CrossRefGoogle Scholar
  6. Cai M (2013) Rock mechanical and engineering. Science Press, BeijingGoogle Scholar
  7. Gehle C, Kutter HK (2003) Breakage and shear behaviour of intermittent rock joints. Int J Rock Mech Min Sci 40(5):687–700CrossRefGoogle Scholar
  8. Jiang Y, Luan H, Wang Y et al (2018) Study on macro-meso failure mechanism of pre-fractured rock specimens under uniaxial compression. Geotech Geol Eng 36(5):3211–3222CrossRefGoogle Scholar
  9. Lajtai EZ (1969a) Shear strength of weakness planes in rock. Int J Rock Mech Min Sci Geomech Abstr 6(5):499CrossRefGoogle Scholar
  10. Lajtai EZ (1969b) Strength of discontinuous rocks in direct shear. Geotechnique 19(2):218–233CrossRefGoogle Scholar
  11. Li X, Li H, Xia X, Liu B, Feng H (2016) Numerical simulation of mechanical characteristics of jointed rock in direct shear test. Rock Soil Mech 2(37):583– 591Google Scholar
  12. Li S, Wang S, Wang Z (2018) Microparameter estimation method of concrete micro-constitutive model based on Brazilian test. J Shandong Univ Sci Technol (Natural Science) 37(4):49–57Google Scholar
  13. Liu Y (2007) Study on failure models and strength of rock mass containing discontinuous joints in direct shear. College of Civil Engineering, Tongji University, ShanghaiGoogle Scholar
  14. Liu Y, Xia C (2006) Study on models and strength behavior of rock mass containing discontinuous joints in direct shear. Chin J Geotech Eng 28(10):1242–1247Google Scholar
  15. Potyondy DO (2007) Simulating stress corrosion with a bonded-particle model for rock. Int J Rock Mech Min Sci 44(5):677–691CrossRefGoogle Scholar
  16. Qing Y, Feng J, Yang S, Ren Q (2018) Formation mechanism and evolution of multi-phase fault based on physical and numerical simulation. J Shandong Univ Sci Technol (Natural Science) 37(1):60–70Google Scholar
  17. Ren W, Bai S, Feng D, Chen J, Jia Z (2000) Strength behavior of rock mass containing coplanar close intermittent joints under direct shear condition. Chinese Society for Rock Mechanics & Engineering, WuhanGoogle Scholar
  18. Son BK, Lee YK, Lee CI (2004) Elastic–plastic simulation of a direct shear test on rough rock joints. Int J Rock Mech Min Sci 41(3):354–359CrossRefGoogle Scholar
  19. Stimpson B (1978) Failure of slopes containing discontinuous planar points. In: 19th US symposium on rock mechanics (USRMS). American Rock Mechanics AssociationGoogle Scholar
  20. Svartsjaern M, Saiang D (2017) Discrete element modelling of footwall rock mass damage induced by sub-level caving at the Kiirunavaara mine. Minerals 7(7):109CrossRefGoogle Scholar
  21. Wang X, Wang G, Jiang Y, Wu X, Wang Z, Huang N (2014a) Simulation research on granite compression test based on particle discrete element model. Rock Soil Mech z1:99–105Google Scholar
  22. Wang G, Yuan K, Jiang Y, Shi Y, Chen L, Han Z (2014) Macro-micro mechanical study on bolted joint subjected to shear loading based on DEM. J China Coal Soc 39(12):2381–2389Google Scholar
  23. Xu J, Xie Z, Jia H (2010) Simulation of micromechanical properties of limestone using particle flow code. In: National symposium on numerical analysis and analytical methods of geotechnical mechanics, WenzhouGoogle Scholar
  24. Yan P, Li T, Lu W, Chen M, Zhou C (2013) Properties of excavation damaged zone under blasting load in deep tunnels. Rock Soil Mech 34(z1):451–457Google Scholar
  25. Yang Q, Liu Y (2012) Simulations of crack propagation in rock-like materials using particle flow code. Chin J Rock Mech Eng 31(s1):3123–3129Google Scholar
  26. Yang S, Tian W, Ranjith PG (2017) Failure mechanical behavior of Australian strathbogie granite at high temperatures: insights from particle flow modeling. Energies 10(6):756CrossRefGoogle Scholar
  27. Yu H, Ruan H, Chu W (2013) Particle flow code modeling of shear behavior of rock joints. Chin J Rock Mech Eng 32(7):1482–1490Google Scholar
  28. Zhao J (1997) Joint matching coefficient and effects to behavior of rock joint. Chin J Rock Mech Eng 16(6):514Google Scholar
  29. Zhao J (1998) A new JRC-JMC shear strength criterion for rock joints. Chin J Rock Mech Eng 4:349–357Google Scholar
  30. Zhao L, Feng J (2018) Interrelationship study between rock mechanical stratigraphy and structural fracture development. J Shandong Univ Sci Technol (Natural Science) 37(1):35–46Google Scholar
  31. Zhou J, Zhang L, Yang D et al (2017a) Investigation of the quasi-brittle failure of alashan granite viewed from laboratory experiments and grain-based discrete element modeling. Materials 10(7):835CrossRefGoogle Scholar
  32. Zhou J, Zhang L, Braun A et al (2017b) Investigation of processes of interaction between hydraulic and natural fractures by PFC modeling comparing against laboratory experiments and analytical models. Energies 10(7):1001CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and TechnologyShandong University of Science and TechnologyQingdaoChina
  2. 2.College of Mining and Safety EngineeringShandong University of Science and TechnologyQingdaoChina
  3. 3.Graduate School of EngineeringNagasaki UniversityNagasakiJapan

Personalised recommendations