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Petro-mineralogical and Mechanical Property of Fault Material in Phyllitic Rock Tunnel  

Lee, Kyoung-Mi (Department of Earth & Environmental Sciences, Chungbuk National University)
Lee, Sung-Ho (Department of Earth & Environmental Sciences, Chungbuk National University)
Seo, Yong-Seok (Department of Earth & Environmental Sciences, Chungbuk National University)
Kim, Chang-Yong (Korea Institute of Construction Technology, Dept. Geotechnical Engineering Research)
Kim, Kwang-Yoem (Korea Institute of Construction Technology, Dept. Geotechnical Engineering Research)
Publication Information
The Journal of Engineering Geology / v.17, no.3, 2007 , pp. 339-350 More about this Journal
Abstract
Content, swelling, concentration, drainage of clay are critical factors that could control rock failures as well as discontinuous geological structures like faults and joints. Especially, the proportional components of clay minerals can be one of few direct indicators to a rock failure caused well by rainfall. Criticality of the role of clay mineral contents gets bigger in the slope and tunnel design. This study, using a horizontal boring core of pelitic/psammitic phyllite from the OO tunnel construction site, aims to investigate mineral composition changes related to fault distribution and their mechanical effects to the activity of these discontinuous layers (i.e., clay-filled fault layers), and eventually to define correlation among rock compositions, weathering products and rock instabilities. Field survey and lab tests were carried out for the composition and strength index of fault clay minerals within the core samples and microscopic analysis of fresh and weathered rock samples.
Keywords
phyllite; fault; clay mineral; boring core;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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