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http://dx.doi.org/10.7843/kgs.2017.33.12.127

A Case Study on Geotechnical Properties and Weathering Degree of Weathered Granite Rock  

Lee, Seung-Hwan (Dept. of Civil & Environmental Engrg., Seoul National Univ.)
Yoo, Byeong Soo (Dept. of Civil & Environmental Engrg., Seoul National Univ.)
Chung, Choong-Ki (Dept. of Civil & Environmental Engrg., Seoul National Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.33, no.12, 2017 , pp. 127-139 More about this Journal
Abstract
Site investigation including boring and various in-situ borehole test (Pressuremeter test, Borehole shear test, Downhole test, Suspension PS logging, Density logging) and X-ray fluorescence analysis for rock core sample were performed to estimate geotechnical properties and weathering degree of weathered granite rock in Goyang. Deformation modulus, shear strength parameter and shear wave velocity estimated through in-situ borehole test had a tendency to increase with depth. And several chemical weathering indices evaluated by X-ray fluorescence analysis had a general tendency of reducing weathering degree in accordance with depth. Also, relationship between VR determined as a representative weathering index and the geotechnical properties was analyzed.
Keywords
Weathered granite rock; In-situ test; Weathering degree; Geotechnical property;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Ruxton, B. P. (1968), "Measures of the Degree of Chemical Weathering of Rocks", J.l of Geology, Vol.76, pp.518-527.   DOI
2 Sun, C. K., Kim, B. H., and Chung, C. K. (2006), "Investigation on Weathering Degree and Shear Wave Velocity of Decomposed Granite Layer in Hongsung", J. of the Korean Society of Civil Engineering, Vol.26, No.6C, pp.431-443.
3 Terzaghi, K. and Peck, R. B. (1948), Soil mechanics in engineering practice, John wiley and sons, Inc., New Yor, NY.
4 Vogel, D. E. (1975), "Precambrian Weathering in Acid Metavolcanic Rocks from the Superior Province, Villebon Township, South - Central Quebec", Canadian J. of Earth Sciences, Vol.12, pp.2080-2085.   DOI
5 Vogt, T. (1927), "Sulitjelmafeltets Geologi og Petrografi", Norges Geologiske Undersokelse, Vol.121, pp.560.
6 Yang, H., White, D. J., and Schaefer, V. R. (2006), "In-situ Borehole Shear Test and Rock Borehole Shear Test for Slope Investigation", In Site and Geomaterial Characterization, pp.293-298.
7 Begonha, A. and Braga, M. (2002). Weathering of the Oporto granite: geotechnical and physical properties. Catena, Vol.49, No.1, pp.57-76.   DOI
8 Gibson, R. E. and Anderson, W. F. (1961), In situ measurement of soil properties with the pressuremeter, Civil Engineering Publication, Wks Rev. 56, No.658, pp.615-618.
9 Gupta, A. and Rao, K. S. (1998), "Index Properties of Weathered Rocks: Inter-relationships and Applicability", Bulletin of Engineering Geology and the Environment, Vol.57, No.2, pp.161-172.   DOI
10 Haberfield, C. M. and Johnston, I. W. (1990), "The Interpretation of Pressuremeter Tests in Weak Rock-theoretical Analysis", In Pressuremeters: Proceedings of the Third International Symposium on Pressuremeters, pp.169-178.
11 Kim, D. C. and Choi, Y. K. (2000), "Evaluation of Ground Properties for Marine Ground in Pusan Area Using Elastometer-200 Type", J. of the Korean Geotechnical Society, Vol.16, No.4, 2000. pp.83-94.
12 Kim, K. W., Lee, H. B., Kim S. R., and Park, N. S. (2006), "Manual on subsurface investigations", Seoul.
13 Kim, S. M., Yun, D. E., Cho, S. J., Kang, I. M., and Park H. D. (2016), "Determination of Alteration Indexs Using a Portable X-ray Fluorescence Analyzer: A Case Study on Hydrothermal Alteration of Limestone from Gangwon Province, South Korea", J. of Korean Society of Miner, Energy Resour. Eng., Vol.53, No.6, pp.541-554.
14 Kim, W. C., Lee, J. H., Yang, J. S., and Lim, J. S. (2006), Evaluation of Bearing Capacity of Mid-sized Drilled Shaft in IGM Using Load Transfer Function Analysis, Korean Geo-Environmental Conference, pp.147-154.
15 Lee, J. H., Kim, W. C., Nam, H. W., and Lim, H. S. (2005), The Bearing Capacity of Drilled Shaft Embeded in Weathered Rock by IGM Design Application in Korea. Korean Geo-Environmental Conference, pp.167-177.
16 Kong, J. Y., Chae, H. Y., and Chun, B. S. (2010), "Comparison of Correlation Equations between N Value and Shear Wave Velocity", Proceedings of the Korean Geotechnical Society spring national conference, pp.656-665.
17 Lee, C. K. and Chang, S. M. (2003), "Evaluation of Weathering Intensity and Strength Parameter for Weathered Granite Masses (1)", J. of the Korean Geotechnical Society, Vol.19, No.2, pp. 227-236.
18 Lee, C. S. and Cho, T. C. (2005), "Effects of Rock Weathering on the Degradation of Engineering Properties", J. of Korea Society for Rock Mechanics, Vol.15, No.6, pp.411-424.
19 Lee, S. G. (1993), "Weathering of Granite", J. of Geol. Soc. Korea, Vol.29, No.4, pp.396-413.
20 Handy geotechnical instruments (http://www.handygeotech.com).
21 OYO corporation (2008), "Operation Manual Model-4018 elastometer-2 indicatior".
22 Mayne, P. W., Christopher, B. R., and DeJong, J. (2001), "Manual on Subsurface Investigations", Nat. Highway Inst. Sp. Pub. FHWA NHI-01-031. Fed. Highway Administ, Washington, DC.
23 Nesbitt, H. W. and Young, G. M. (1982), "Early Proterozoic Climates and Plate Motions Inferred from Major Element Chemistry of Lutites", Nature, Vol.299, pp.715-717.   DOI
24 O'Neil, M. and Reese, L. (1999), Drilled shafts: Construction procedures and design methods.
25 Pickell, J. J. and Heacock, J. G. (1960), "Density Logging", J. of the Geophysics, Vol.25, No.4, pp.891-904.   DOI
26 Reiche, P. (1943), "Graphic Representation of Chemical Weathering", J. of Sedimentary Petrology Vol.13, pp.58-68.