Analysis of Rock Weathering Characterization around Fault using Laboratory Tests

doi:10.12972/ksmer.2014.51.5.668

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2014 Vol.51, Issue 5 Preview Page Next Page

Research Paper

Analysis of Rock Weathering Characterization around Fault using Laboratory Tests 실내 시험을 이용한 단층 주변 암석의 풍화 특성 분석: 박지환 · 서장원 · 이상호 · 박창신 · 박형동
Jihwan Park, Jangwon Suh, Sangho Lee, Changshin Park, Hyeong-Dong Park

31 October 2014. pp. 668-677

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Abstract

Rock samples were collected on faults and 2∼3 m away from faults at 4 sites in Korea and China, and weathering and alteration were analysed using laboratory tests and polarization microscope. Point load strength and slake durability index were measured to analyse weathering character of rock samples. The strength and slake durability of rock samples on faults were weaker than those of rock samples 2∼3 m away from faults. Polarization microscope was also used to analyse the alteration and weathering of rock samples. Minerals of rock samples on faults were more altered and weathered than those of rock samples 2∼3 m away from faults. The correlation between physical and mineralogical properties were analysed synthetically. The results of the study can be used as basic data of geological investigation and construction in fault sites.

Keywords

Fault

Weathering

Slake-durability

Strength

Polarization microscope

생성 시기와 풍화 양상이 다른 국내외 4개 단층 지역의 단층면과 단층면에서 2∼3 m 이격된 암반에서 암석 시료를 채취하고, 실내시험과 편광현미경을 이용해 풍화 및 변질 특성을 분석하였다. 점하중강도와 슬레이크 내구성을 측정한 결과 단층면에서 이격된 암반의 암석 시료에 비해 단층면에서 채취한 암석시료의 강도 및 슬레이크 내구성 지수가 상대적으로 낮게 측정되었다. 또한 편경현미경 관찰 결과 단층면 시료에서 변질 및 풍화 작용을 받은 광물이 상대적으로 더 많이 발견되었고, 광물 내 또는 광물 간 내부균열이 다수 관찰되었다. 시험 측정 및 관찰 결과를 토대로 다양한 암석시료의 물리적-광물학적 특성을 다양한 관점에서 종합적으로 분석하여 그 상관관계를 분석하였다. 본 연구결과는 향후 단층대 주변의 지질 조사 또는 건설 활동을 위한 기초자료로 이용될 수 있을 것으로 기대한다.

키워드

단층

풍화

슬레이크 내구성

강도

편광현미경

References

Al-Harthi, A.A., 2001, “A field index to determine the strength characteristics of crushed aggregate,” Bulletin of Engineering Geology and the Environment, Vol. 60, No. 3, pp. 193-200.
Arikan, F., Ulusay, R. and Aydin, N., 2007, “Characterization of weathered acidic volcanic rocks and a weathering classification based on a rating system,” Bulletin of Engineering Geology and the Environment, Vol. 66, No. 4, pp.415-430.
Bieniawski, Z.T., 1975, “The point load test in geotechnical practice,” Engineering Geology, Vol. 9, No. 1, pp. 1-11.
Ceryan, S., Zorlu, K., Gokceoğlu, C. and Temel, A., 2008, “The use of cation packing index for characterizing the weathering degree of granitic rocks,” Engineering Geology, Vol. 98, No. 1-2, pp. 60-74.
Choi, B.G., Choi, S.G., Seo, J.E., Kim, T.H., Kang, H.S. and Lee, S.B., 2008, Mineralogical and chemical characteristics of skarn minerals of Wolgok ore body for assessing redevelopment of Gagok mine, Proceedings of 2009 Fall Joint Annual Conference of The Geological Societies In Korea, Jeju International Convention Center, Jeju Island, 125.
Dhakal, G., Yoneda, T., Kato, M. and Kaneko, K., 2002, “Slake durability and mineralogical properties of some pyroclastic and sedimentary rocks,” Engineering Geology, Vol. 65, No. 1, pp. 31-45.
Gamble, J.C., 1971, Durability-plasticity classfication of shales and other argillaceous rocks, Ph. D. thesis, University of Illinois, USA.
Gokceoğlu, C., Ulusay, R. and Sonmez, H., 2000, “Factors affecting the durability of selected weak and claybearing rocks from Turkey, with particular emphasis on the influence of the number of drying and wetting cycles,” Engineering Geology, Vol. 57, No. 3-4, pp. 215-237.
Guan, P., Ng C.W.W., Sun, M. and Tang, W., 2001, “Weathering indices for rhyolitic tuff and granite in Hong Kong,” Engineering Geology, Vol. 59, No. 1-2, pp. 147-159.
Gupta, V. and Ahmed, I., 2007, “The effect of pH of water and mineralogical properties on the slake durability (degradability) of different rocks from the Lesser Himalaya, India,” Engineering Geology, Vol. 95, No. 3-4, pp. 79-87.
Jung, C.H., 2009, Introduction to geology, Parkyoungsa, Seoul, Korea, pp. 103-104. (In Korean)
Jung, C.S., Lee, H.G., Chang, B.W., Kim, J.M., Lee, S.H., Lim, C.B., Lee, J.D. and Kim, Y.J., 2001, “Dating fault rocks from the Uljin area,” J. of the Geological Society of Korea, Vol. 37, No. 3, pp. 375-392. (In Korean with English abstract)
Kim, K.Y., Kim, C.Y., Yim, S.B., Yun, H.S. and Seo, Y.S., 2006, “A Study on Problems and Improvements of Face Mapping during Tunnel Construction,” The Journal of Engineering Geology, Vol. 16, No. 3, pp. 265-273. (In Korean with English abstract)
Kolay, E. and Kayabali, K., 2006, “Investigation of the effect of aggregate shape and surface roughness on the slake durability index using the fractal dimension approach,” Engineering Geology, Vol. 86, No. 4, pp. 271-284.
Kroner, A., Wilde, S.A., Li, J.H. and Wang, K.Y., 2005, “Age and Evolution of a Late Archean to Paleoproterozoic Upper to Lower Crustal Section in the Wutaishan / Hengshan / Fuping Terrain of Northern China,” J. of Asian Earth Sciences, Vol. 25, pp. 577-595.
KSRM, 2005, Standard Test Method of Rock, CIR, Seoul, Korea. (In Korean)
Lee, C., Lee, M., Park, S. and Kim, J., 2000, The world of rock through polarization microscope, Education Science Press, Seoul, Korea. (In Korean)
Shalabi, F.I., Cording E.J. and Al-Hattamleh, O.H., 2007, “Estimation of rock engineering properties using hardness tests,” Engineering Geology, Vol. 90, No. 3-4, pp. 138-147.
Takahiro, O. and Masahiro, C., 1999, “Weathering rate of mudstone and tuff on old unlined tunnel walls,” Engineering Geology, Vol. 55, No. 1-2, pp. 15-27.
Ulusay, R., Arikan, F., Yoleri, M.F. and Calgan, D., 1995, “Engineering geological characterization of coal mine waste material and an evaluation in the context of back-analysis of spoil pile instabilities in a strip mine, SW Turkey,” Engineering Geology, Vol. 40, No. 1-2, pp. 77-101.
Yokota, S. and Iwamatsu, A., 2000, “Weathering distribution in a steep slope of soft pyroclastic rocks as an indicator of slope instability,” Engineering Geology, Vol. 55, No. 1-2, pp. 57-68.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 51
No :5
Pages :668-677
DOI :https://doi.org/10.12972/ksmer.2014.51.5.668

[1] Al-Harthi, A.A., 2001, “A field index to determine the strength characteristics of crushed aggregate,” Bulletin of Engineering Geology and the Environment, Vol. 60, No. 3, pp. 193-200.

[2] Arikan, F., Ulusay, R. and Aydin, N., 2007, “Characterization of weathered acidic volcanic rocks and a weathering classification based on a rating system,” Bulletin of Engineering Geology and the Environment, Vol. 66, No. 4, pp.415-430.

[3] Bieniawski, Z.T., 1975, “The point load test in geotechnical practice,” Engineering Geology, Vol. 9, No. 1, pp. 1-11.

[4] Ceryan, S., Zorlu, K., Gokceoğlu, C. and Temel, A., 2008, “The use of cation packing index for characterizing the weathering degree of granitic rocks,” Engineering Geology, Vol. 98, No. 1-2, pp. 60-74.

[5] Choi, B.G., Choi, S.G., Seo, J.E., Kim, T.H., Kang, H.S. and Lee, S.B., 2008, Mineralogical and chemical characteristics of skarn minerals of Wolgok ore body for assessing redevelopment of Gagok mine, Proceedings of 2009 Fall Joint Annual Conference of The Geological Societies In Korea, Jeju International Convention Center, Jeju Island, 125.

[6] Dhakal, G., Yoneda, T., Kato, M. and Kaneko, K., 2002, “Slake durability and mineralogical properties of some pyroclastic and sedimentary rocks,” Engineering Geology, Vol. 65, No. 1, pp. 31-45.

[7] Gamble, J.C., 1971, Durability-plasticity classfication of shales and other argillaceous rocks, Ph. D. thesis, University of Illinois, USA.

[8] Gokceoğlu, C., Ulusay, R. and Sonmez, H., 2000, “Factors affecting the durability of selected weak and claybearing rocks from Turkey, with particular emphasis on the influence of the number of drying and wetting cycles,” Engineering Geology, Vol. 57, No. 3-4, pp. 215-237.

[9] Guan, P., Ng C.W.W., Sun, M. and Tang, W., 2001, “Weathering indices for rhyolitic tuff and granite in Hong Kong,” Engineering Geology, Vol. 59, No. 1-2, pp. 147-159.

[10] Gupta, V. and Ahmed, I., 2007, “The effect of pH of water and mineralogical properties on the slake durability (degradability) of different rocks from the Lesser Himalaya, India,” Engineering Geology, Vol. 95, No. 3-4, pp. 79-87.

[11] Jung, C.H., 2009, Introduction to geology, Parkyoungsa, Seoul, Korea, pp. 103-104. (In Korean)

[12] Jung, C.S., Lee, H.G., Chang, B.W., Kim, J.M., Lee, S.H., Lim, C.B., Lee, J.D. and Kim, Y.J., 2001, “Dating fault rocks from the Uljin area,” J. of the Geological Society of Korea, Vol. 37, No. 3, pp. 375-392. (In Korean with English abstract)

[13] Kim, K.Y., Kim, C.Y., Yim, S.B., Yun, H.S. and Seo, Y.S., 2006, “A Study on Problems and Improvements of Face Mapping during Tunnel Construction,” The Journal of Engineering Geology, Vol. 16, No. 3, pp. 265-273. (In Korean with English abstract)

[14] Kolay, E. and Kayabali, K., 2006, “Investigation of the effect of aggregate shape and surface roughness on the slake durability index using the fractal dimension approach,” Engineering Geology, Vol. 86, No. 4, pp. 271-284.

[15] Kroner, A., Wilde, S.A., Li, J.H. and Wang, K.Y., 2005, “Age and Evolution of a Late Archean to Paleoproterozoic Upper to Lower Crustal Section in the Wutaishan / Hengshan / Fuping Terrain of Northern China,” J. of Asian Earth Sciences, Vol. 25, pp. 577-595.

[16] KSRM, 2005, Standard Test Method of Rock, CIR, Seoul, Korea. (In Korean)

[17] Lee, C., Lee, M., Park, S. and Kim, J., 2000, The world of rock through polarization microscope, Education Science Press, Seoul, Korea. (In Korean)

[18] Shalabi, F.I., Cording E.J. and Al-Hattamleh, O.H., 2007, “Estimation of rock engineering properties using hardness tests,” Engineering Geology, Vol. 90, No. 3-4, pp. 138-147.

[19] Takahiro, O. and Masahiro, C., 1999, “Weathering rate of mudstone and tuff on old unlined tunnel walls,” Engineering Geology, Vol. 55, No. 1-2, pp. 15-27.

[20] Ulusay, R., Arikan, F., Yoleri, M.F. and Calgan, D., 1995, “Engineering geological characterization of coal mine waste material and an evaluation in the context of back-analysis of spoil pile instabilities in a strip mine, SW Turkey,” Engineering Geology, Vol. 40, No. 1-2, pp. 77-101.

[21] Yokota, S. and Iwamatsu, A., 2000, “Weathering distribution in a steep slope of soft pyroclastic rocks as an indicator of slope instability,” Engineering Geology, Vol. 55, No. 1-2, pp. 57-68.

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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