Abstract
A study on the mechanical characteristics and permeability properties of sandstone and limestone from a coal mine under 3D stresses has been carried out with the MTS815 rock mechanics test system, and the characteristics of mechanics and permeability before and after the rock failure under hydro-mechanical coupling conditions have been analyzed and discussed. The research revealed the difference of mechanics and permeability before and after the rock failure and obtained the relationship among the strength, deformation and differential water pressure. It also obtained the correlation among the permeability and stress, strain and revealed the features of fractures which influenced the correlation. The results show that there are obvious weakening effects of differential water pressures on the mechanical properties after the rock damages; the permeability of rock mass in practical engineering is mainly controlled by the features of fractures; the permeability has an negative index correlation with the axial strain ε 1, and has a power function correlation with the mean stress σ m(σ m = (σ 1 + 2σ 3)/3); for fractured limestone and coarse sandstone, the permeabiity will tend to be stable gradually when the mean stress reaches or exceeds a certain value σ ml.
Similar content being viewed by others
References
Barton N, Bandis S, Bakhtar K (1985) Deformation and conductivity coupling of rock joints. Int J Rock Mech Min Sci Geomech Abstr 22(3):121–140
Brace WF, Walsh JB, Frangos WT (1968) Permeability of granite under high pressure. J Geophys Res 73(6):2225–2236
Chai B, Tong J, Jiang B et al (2014) How does the water–rock interaction of marly rocks affect its mechanical properties in the Three Gorges Reservoir area, China. Environ Earth Sci 72:2797–2810
Chang ZY, Zhao YS, Hu YQ et al (2004) Theoretic and experimental studies on seepage law of single fracture under 3D stresses. Chin J Rock Mech Eng 23(4):620–624 (in Chinese)
David C, Menendez B, Zhu W (2001) Mechanical compaction, microstructures and permeability in sandstones. Phys Chem Earth 26(1–2):45–51
Gale JE (1982) The effect of fracture type (induced versus natural) on the stress-fracture closure permeability relationships. In: Proc 23th Symp on Rock Mech, Berkeley
Gangi AF (1978) Variation of whole and fractured porous rock permeability with confining pressure. Int J Rock Mech Min Sci Geomech Abstr 15(5):249–257
Helland J, Raab S (2001) Experimental investigation of the differential stress on permeability of a lower Permian (Rotliegend) sandstone deformed in the brittle deformation field. Phys Chem Earth 26(1–2):33–38
Hsieh PA, Tracy JV, Neuzil CE et al (1981) A transient laboratory method for determining the hydraulic properties of ‘tight’ rocks-I. Theory. Int J Rock Mech Min Sci Geomech Abstr 18(3):245–252
Jiang ZQ, Ji LJ, Zuo RS et al (2002) Correlativity among rock permeability and strain, stress under servo-control condition. Chin J Rock Mech Eng 21(10):1442–1446 (in Chinese)
Jones FO (1975) A laboratory study of the effects of confining pressure on fracture flow and storage capacity in carbonate rock. J Petrol Technol 21(7):21–27
Kranzz RL, Frankel AD, Engelder CH et al (1979) The permeability of whole and jointed Barre granite. Int J Rock Mech Min Sci Geomech Abstr 16(4):225–234
Lajtai EZ, Schmidtke RH, Bielus LP (1987) The effect of water on the time-dependent deformation and fracture of a granite. Int J Rock Mech Min Sci Geomech Abstr 24(4):247–255
Li SP, Li YS, Li Y et al (1994) Permeability-strain equations corresponding to the complete stress–strain path of Yinzhuang sandstone. Int J Rock Mech Min Sci 31(4):383–391
Li SP, Wu DX, Xie WH et al (1997) Effect of confining pressure, pore pressure and specimen dimension on permeability of Yinzhuang sandstone. Int J Rock Mech Min Sci 34(3–4):435–441
Li JW, Xu J, Wang L et al (2013) Water–rock coupling test on mechanical properties of sandy slate rock mass. Chin J Geotech Eng 24(4):247–255 (in Chinese)
Masuda K (2001) Effect of water on rock strength in a brittle regime. J Struct Geol 23:1653–1657
Neuzil CE, Cooley C, Silliman SE et al (1981) A transient laboratory method for determining the hydraulic properties of ‘tight’ rocks-II. Theory. Int J Rock Mech Min Sci Geomech Abstr 18(3):253–258
Oda M, Takemura T, Aoki T (2002) Damage growth and permeability change in triaxial compression tests of Inada granite. Mech Mater 34:313–331
Peng SP, Meng ZP, Wang H et al (2003) Testing study on pore ratio and permeability of sandstone under different confining pressures. Chin J Rock Mech Eng 22(5):742–746 (in Chinese)
Tang CA, Tham LG, Lee PKK et al (2002) Coupled analysis of flow, stress and damage (FSD) in rock failure. Int J Rock Mech Min Sci 39:477–489
Vásárhelyi B, Ván P (2006) Influence of water content on the strength of rock. Eng Geol 84:70–74
Walsh JB (1981) Effect of pore pressure and confining pressure on fracture permeability. Int J Rock Mech Min Sci Geomech Abstr 18(5):429–435
Wang JA, Park HD (2002) Fluid permeability of sedimentary rocks in a complete stress–strain process. Eng Geol 63:291–300
Wang HL, Xu WY (2013) Relationship between permeability and strain of sandstone during the process of deformation and failure. Geotech Geol Eng 31:347–353
Wang HL, Xu WY, Shao JF (2014) Experimental researches on hydro-mechanical properties of altered rock under confining pressure. Rock Mech Rock Eng 47:485–493
Wasantha PLP, Ranjith PG (2014) The Taguchi approach to the evaluation of the influence of different testing conditions on the mechanical properties of rock. Environ Earth Sci 72:79–89
Zhang R, Jiang ZQ, Sun Q et al (2013) The relationship between the deformation mechanism and permeability on brittle rock. Nat Hazards 66:1179–1187
Zhu W, Wong TF (1996) Permeability reduction in a dilating rock: network modeling of damage and tortuosity. Geophys Res Lett 23(22):3099–3102
Zoback MD, Byerlee JD (1975) The effect of microcrack dilatancy on the permeability of westerly granite. J Geophys Res 80(5):752–755
Acknowledgments
The authors are grateful for the financial support from the National Natural Science Foundation of China (Grant Nos. 51120145001, 51374148), the National Basic Research Projects of China (Grant No. 2011CB201201), the CERS-China Equipment and Education Resources System (CERS-1-114), and the Fundamental Research Funds for the Central Universities (Grant No. 2014SCU04A07). The authors wish to offer their gratitude and regards to the colleagues who contributed to this work.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Wang, L., Liu, Jf., Pei, Jl. et al. Mechanical and permeability characteristics of rock under hydro-mechanical coupling conditions. Environ Earth Sci 73, 5987–5996 (2015). https://doi.org/10.1007/s12665-015-4190-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12665-015-4190-4