Influence of Joint Geometrical Characteristics on Seepage of Fractured Rock

Abstract:

It describes the geometrical parameters of the joint surface in the fractured rock, through two parameters, i.e. JRC (Joint Roughness Coefficient) and JMC (Joint Matching Coefficient). Following these coefficients, the geometry of the surface has been measured exactly. Meanwhile, the rock deformation and seepage characteristics have been mainly defined by the joint surface, so the influence of JRC and JMC on the aperture width and the seepage properties have been deeply studied. Based on the cubic law of the flow water, the two parameters incorporated into the law and the permeability of the fractured rock has been obtained.

• Periodical: Advanced Materials Research (Volumes 631-632)
• Pages: 723-728
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.631-632.723
• Online since: January 2013
• Authors: Ke Man, Ju Wang, Rui Su, Yong Qiang Zhu
• Keywords: Joint Matching Coefficient (JMC), Joint Roughness Coefficient (JRC), Rock, Seepage

References

[1] N. R. Barton, Review of a new shear strength criterion for rock joints[J]. Engineering Geology, 1973, 7(4): 287-332.

DOI: 10.1016/0013-7952(73)90013-6

[2] B.B. Mandelbrot, The fractal of nature[M]. New York: [s. n. ], (1983).

[3] N. Fardin, The effect of tortusosity on fluidflow through a single fracture [J]. Water Resour. Resear., 1984, 20(9): 1209-1215.

[4] W.A. Unstrulid and G.A. Johnson, Rock mechanics contributions and challenges[C]. Proceeding of the 31st US symposium on rock mechanics. Rotterdam: A.A. Balkema, 1990: 471-478.

[5] X B Xiong, C H Zhang, E Z Wang. A review of steady state seepage in a single fracture of rock [J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(9): 1839-1847.

[6] G M. Lomize, Flow in Fractured Rocks [M]. Moscow: Gesenergoizdat, (1951).

[7] C. Louis, A study of groundwater flow in jointed rock and its influence on the stability of rock masses [R]. London: Imp. Coll., (1969).

[8] Y R Liu and H M Tang, Rock Mass Mechanics [M]. Wuhan: China University of Geosciences Press, (1999).

[9] C E Neuzil and J V. Tracy, Flow through fractures[J]. Water Resour. Resear., 1981, 17(1): 191-194.

[10] Y W. Tsang and P A. Witherspoon. The dependence of fracture mechanical and fluid flow properties on fracture roughness and sample size[J]. J. of Geophys. Research, 1983, 88(B3): 2359-2366.

DOI: 10.1029/jb088ib03p02359

[11] Y W. Tsang. The effect of tortusosity on fluidflow through a single fracture [J]. Water Resour. Resear., 1984, 20(9): 1209-1215.

[12] D Elsworth and R E. Goodman, Characterization of rock fissure hydraulic conductivity using idealized wall roughness profiles [J]. Int. J. Rock Mech. Min. Sci. and Geomech. Abstr., 1986, 23(3): 233-243.

DOI: 10.1016/0148-9062(86)90969-1

[13] N Barton, S Bandis and K Bakhtar, Strength, deformation and conductivity coupling of rock joints[J]. Int. J. Rock Mech. Min. Sci. and Geomech. Abstr., 1985, 22(3): 121-140.

DOI: 10.1016/0148-9062(85)93227-9

[14] C B Zhou and W L. Xiong, A generalized cubic law for percolation in rock joints [J]. Rock and soil mechanics, 1996, 17(4): 1-7.

[15] N R. Barton, A model study of rock joint deformation[J]. Int. J. Rock Mech., 1972, 9: 579-602.

[16] J. Zhao, Joint surface matching and shear strength. Part A: joint matching coefficient(JMC) [J]. Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 1997, 34(2): 173-178.

DOI: 10.1016/s0148-9062(96)00062-9

[17] J. Zhao, Joint surface matching and shear strength. Part B: JMC-JRC shear strength criterion [J]. Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 1997, 34(2): 179-185.

DOI: 10.1016/s0148-9062(96)00063-0

[18] Y W Tsang and P A. Witherspoon, Correlation between fracture roughness characteristics and fracture mechanical and fluid flow properties[C]. Proc. 23rd US Symp. on Rock Mech., 1982: 560-567.

[19] S Bandis, A C Lumsden and N R. Barton, Fundamentals of rock joint deformation [J]. Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 1983, 20: 249-268.

DOI: 10.1016/0148-9062(83)90595-8

[20] J. Zhao and E T Brown, Hydro thermo mechanical properties of joints in the Carnmenellis granite [J]. Engng. Geol., 1992, 25: 376-388.

DOI: 10.1144/gsl.qjeg.1992.025.04.03