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http://dx.doi.org/10.9719/EEG.2019.52.1.65

Relationship between Shear Strength and Component Content of Fault Cores  

Yun, Hyun-Seok (Department of Earth and Environmental Sciences, Chungbuk National University)
Moon, Seong-Woo (Department of Earth and Environmental Sciences, Chungbuk National University)
Seo, Yong-Seok (Department of Earth and Environmental Sciences, Chungbuk National University)
Publication Information
Economic and Environmental Geology / v.52, no.1, 2019 , pp. 65-79 More about this Journal
Abstract
In this study, simple regression and multiple regression analyses were performed to analyze the relationship between breccia and clay content and shear strength in fault cores. The results of the simple regression analysis performed for each rock (andesitic rock, granite, and sedimentary rock) and three levels of normal stress (${\sigma}_n=54$, 108, 162 kPa), reveal that the shear strength is proportional to breccia content and inversely proportional to clay content. Furthermore, as normal stress increases, the shear strength is influenced by the change in component content, correlating more strongly with clay content than with breccia content. In the multiple regression analysis, which considers both breccia and clay content, the shear strength is found to be more sensitive to the change in breccia content than to that of clay. As a result, the most suitable regression model for each rock is proposed by comparing the coefficients of determination ($R^2$) estimated from the simple regression analysis with those from the multiple regression analysis. The proposed models show high coefficients of determination of $R^2=0.624-0.830$.
Keywords
simple regression analysis; multiple regression analysis; breccia and clay content; shear strength; fault core;
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1 Mair, K. and Abe, S. (2008) 3D numerical simulations of fault gouge evolution during shear: Grain size reduction and strain localization. Earth and Planetary Science Letters, v.274, p.72-81.   DOI
2 Mair, K. and Abe, S. (2011) Breaking up: comminution mechanisms in sheared simulated fault gouge. Pure and Applied Geophysics, v.168, p.2277-2288.   DOI
3 Matula, M. (1981) Rock and soil description and classification for engineering geological mapping report by the IAEG commission on engineering geological mapping. Bulletin of the International Association of Engineering Geology, v.24, p.235-274.   DOI
4 Moon, S.W., Yun, H.S., Kim, W.S., Na, J.H., Kim, C.Y. and Seo, Y.S. (2014) Correlation analysis between weight ratio and shear strength of fault materials using multiple regression analysis. The Journal of Engineering Geology, v.24, p.397-409. (in Korean with English abstract)   DOI
5 Moore, D.E. and Lockner, D.A. (2004) Crystallographic controls on the frictional behavior of dry and watersaturated sheet structure minerals. Journal of Geophysical Research, v.109, B03401.   DOI
6 Morrow, C.A., Moore, D.E. and Lockner, D.A. (2000) The effect of mineral bond strength and adsorbed water on fault gouge frictional strength. Geophysical Research Letters, v.27, p.815-818.   DOI
7 North American Geologic-map Data Model Science Language Technical Team (2004) Report on progress to develop a North American science-language standard for digital geologic-map databases; Appendix B: Classification of metamorphic and other composite-genesis rocks, including hydrothermally altered, impactmetamorphic, mylonitic, and cataclastic rocks. In Digital Mapping Techniques '04 -Workshop Proceedings (ed. D. R. Soller), U.S. Geological Survey Open File Report No. 2004-1451, p.85-94.
8 Norwegian Rock Mechanics Group (2000) Engineering geology and rock engineering. In: Handbook No.2, Norwegian Rock and Soil Engineering Association, p.250.
9 Saffer, D.M. and Marone, C. (2003) Comparison of smectite and illiterich gouge frictional properties: Application to the updidp limit of the seismogenic zone along subduction megathrusts. Earth and Planetary Science Letters, v.215, p.219-235.   DOI
10 Riedmuller, G., Brosch, F.J., Klima, K. and Medley, E.W. (2001) Engineering geological characterization of brittle faults and classification of fault rocks, Felsbau, 19(4), 13-19.
11 Shipton, Z.K., Soden, A.M., Kirkpatrick, J.D., Bright, A.M. and Lunn, R.J. (2006) How thick is a fault? Fault displacement-thickness scaling revisited. Geophysical Monograph Series, v.170, p.193-198.
12 Snoke, A.W., Tullis, J. and Todd, V.R. (1998) Fault-Related Rocks. A Photographic Atlas - Princeton: Princeton University Press, p.617.
13 Spry, A. (1969) Metamorphic Textures. London: Pergamon, p.350.
14 Stille, H. and Palmstrom, A. (2008) Ground behaviour and rock mass composition in underground excavations. Tunnelling and Underground Space Technology, v.23, p.46-64.   DOI
15 Storti, F., Billi, A. and Salvini, F. (2003) Particle size distributions in natural carbonate fault rocks. Earth and Planetary Science Letters, v.206, p.173-186.   DOI
16 Tesei, T., Collettini, C., Carpenter, B.M., Viti, C. and Marone, C. (2012) Frictional strength and healing behavior of phyllosilicate-rich faults. Journal of Geophysical Research, v.117, B09402.
17 Tukey, J.W. (1970) Exploratory data analysis. Addison-Wesley Publishing Company, p.872.
18 Woo, I. (2012) Laboratory study of the shear characteristics of fault gouges around Mt. Gumjung, Busan. The Journal of Engineering Geology, v.22, p.113-121. (In Korean with English abstract)   DOI
19 Yun, H.S., Moon, S.W. and Seo, Y.S. (2015) Setting of the range for shear strength of fault cores in Gyeongju and Ulsan using regression analysis. Journal of Korean Tunnelling and Underground Space Association, v.17, p.127-140. (in Korean with English abstract)   DOI
20 Woodcock, N.H. and Mort, K. (2008) Classification of fault breccias and related fault rocks. Geological Magazine, v.145, p.435-440.   DOI
21 ASTM D422-63 (2007) Standard test method for particle-size analysis of soils. ASTM International, West Conshohocken, PA, 2007, DOI: 10.1520/D0422-63R07E02.
22 Abe, S. and Mair, K. (2009) Effects of gouge fragment shape on fault friction: New 3D modelling results. Geophysical Research Letters, v.36, L23302.   DOI
23 An, L.J. and Sammis, C.G. (1994) Particle size distribution of cataclastic fault materials from southern California A 3-D study. Pure and Applied Geophysics, v.143, p.203-227.   DOI
24 ASTM D1140-17 (2017) Standard test methods for determining the amount of material finer than 75-${\mu}m$ (No. 200) sieve in soils by washing. West Conshohocken, PA, 2017, DOI: 10.1520/D1140-17.
25 Blenkinsop, T.G. (1991) Cataclasis and processes of particle size reduction. Pageoph, v.136, p.59-86.   DOI
26 ASTM D2487-17 (2017) Standard practice for classification of soils for engineering purposes (Unified Soil Classification System). ASTM International, West Conshohocken, PA, 2017, DOI: 10.1520/D2487-17.
27 ASTM D3080 / D3080M-11 (2011) Standard test method for direct shear test of soils under consolidated drained conditions. ASTM International, West Conshohocken, PA, 2011, DOI: 10.1520/D3080_D3080M-11.
28 Bieniawski, Z.T. (1993) Classification of rock masses for engineering: The RMR system and future trend, In: Hudson, J.A. (Eds.). Comprehensive Rock Engineering, New York, Pergamon Press, v.3, p.553-574.
29 Brekke, T.L. and Howard, T.R. (1972) Stability problems caused by seams and faults. In Proceedings of the First North American Rapid Excavation and Tunnelling Conference, New York: AIME, p.25-41.
30 Choi, J.H., Kim, Y.S., Gwon, S.H., Paul, E., Sowreh, R., Kim T.H. and Lim S.B. (2015) Characteristics of large-scale fault zone and quaternary fault movement in Maegok-dong, Ulsan. Journal of Engineering Geology, v.25, p.485-498.   DOI
31 Clark, C. and James, P. (2003) Hydrothermal brecciation due to fluid pressure fluctuations: examples from the Olary Domain, SouthAustralia. Tectonophysics, v.366, p.187-206.   DOI
32 Faulkner, D.R., Lewis, A.C. and Rutter, E.H. (2003) On the internal structure and mechanics of large strike-slip fault zones: field observations of the Carboneras fault in southeastern Spain. Tectonophysics, v. 367, p.235-251.   DOI
33 Henderson, I.H.C., Ganerod, G.V. and Braathen, A. (2010) The relationship between particle characteristics and frictional strength in basal fault breccias: Implications for fault-rock evolution and rockslide susceptibility. Tectonophysics, v.486, p.132-149.   DOI
34 Gudmundsson, A., Simmenes, T.H., Belinda, L. and Philipp, S.L. (2010) Effects of internal structure and local stresses on fracture propagation, deflection, and arrest in fault zones. Journal of Structural Geology, v.32, p.1643-1655.   DOI
35 Haines, S.H., Kaproth, B., Marone, C., Saffer, D. and van der Pluijm, B. (2013) Shear zones in clay-rich fault gouge: A laboratory study of fabric development and evolution. Journal of Structural Geology, v.51, p.206-225.   DOI
36 Heilbronner, R. and Keulen, N. (2006) Grain size and grain shape analysis of fault rocks. Tectonophysics, v.427, p.199-216.   DOI
37 Caine, J.S., Evans, J.P. and Forster, C.B. (1996) Fault zone architecture and permeability structure. Geology, v.24, p.1025-028.   DOI
38 Ikari, M.J., Saffer, D.M. and Marone, C. (2007) Effect of hydration state on the frictional properties of montmorillonite-based fault gouge. Journal of Geophysical Research, v.112, B06423.   DOI
39 Heynekamp, M.R., Goodwin, L.B., Mozley, P.S. and Haneberg, W.C. (1999) Controls on fault-zone architecture in poorly lithified sediments, Rio Grande Rift, New Mexico: implications for faultzone permeability and fluid flow. In: Haneberg, W.C., Mozley, P.S., Moore, J.C. and Goodwin, L.B. (Eds.), Faults and Subsurface Fluid Flow in the Shallow Crust. American Geophysical Union Geophysical Monograph, v.113, p.27-50.
40 Higgins, M.W. (1971) Cataclastic rocks. United States Geological Survey Professional Paper, v.687, p.97.
41 Ikari, M.J., Saffer, D.M., and Marone, C. (2009) Frictional and hydrologic properties of clay-rich fault gouge. Journal of Geophysical Research, v.114, B05409.   DOI
42 Kahraman, S. and Alber, M. (2006) Estimating unconfined compressive strength and elastic modulus of a fault breccia mixture of weak blocks and strong matrix. International Journal of Rock Mechanics and Mining Sciences, v.43, p.1277-1287.   DOI
43 Kim, K.Y., Suh, H.S., Yun, T.S., Moon, S.W. and Seo, Y.S. (2016) Effect of particle shape on the shear strength of fault gouge, Geosciences Journal. v.20, p.351-359.   DOI
44 Kosa, E., Hunt, D., Fitchen, W.M., Bockel-rebelle, M.O. and Roberts, G. (2003) The heterogeneity of palaeocavern systems developed along syndepositional fault zones: the Upper Permian Capitan Platform, Guadalupe Mountains, U.S.A. In Permo-Carboniferous Carbonate Platforms and Reefs (eds W. M. Ahr, P. M. Harris, W. A. Morgan & I. D. Somerville), Special Publication of the Society of Economic Paleontologists and Mineralogists, v.78, p.291-322.
45 Laznicka, P. (1988) Breccias and Coarse Fragmentites: Petrology, Environments, Associations, Ores (Developments in Economic Geology), Amsterdam: Elsevier, v.25, p.832.