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http://dx.doi.org/10.9720/kseg.2016.4.593

Analysis on Physical and Mechanical Properties of Rock Mass in Korea  

Seo, Yong-Seok (Department of Earth and Environmental Sciences, Chungbuk National University)
Yun, Hyun-Seok (Department of Earth and Environmental Sciences, Chungbuk National University)
Kim, Dong-Gyou (Geotechnical Engineering Research Institute, Korea Institute of Construction Technology)
Kwon, O-Il (Geotechnical Engineering Research Institute, Korea Institute of Construction Technology)
Publication Information
The Journal of Engineering Geology / v.26, no.4, 2016 , pp. 593-600 More about this Journal
Abstract
To understand the mechanical properties of rock masses and intact rock in Korea, data from 4,280 in situ and laboratory tests from 107 tunnels on general national roads were analyzed. The mechanical properties (unit weight, cohesion, friction angle, modulus of deformation, Young's modulus, Poisson's ratio, uniaxial compressive strength, tensile strength, coefficient of permeability, and specific gravity) were analyzed by rock types and strength of rock in each rock type. The results of analysis, the mean specific gravity was highest in gneiss. The coefficient of permeability and Poisson's ratio show the highest mean values in granite and metamorphic rock, respectively. In addition, the unit weight, cohesion and friction angle in sedimentary rock, modulus of deformation, Young's modulus, uniaxial compressive strength and tensile strength in volcanic rock have the highest mean values. The values for each mechanical property showed wide ranges by the heterogeneity and anisotropy of rock masses in spite of detailed analysis by rock type and classification of rocks according to the strength.
Keywords
rock mass; mechanical property; tunnel; rock type; classification of rocks according to the strength;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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