Start |Author Index | View Uploaded Presentations | Meeting Information
Paper No. 2
Presentation Time: 8:15 AM

BASIC RESEARCH FOR ROCK MASS CLASSIFICATION OF LIMESTONE MINING IN KOREA


KANG, Sang-Soo, Exploration Geophysics and Mining Engineering Department, Korea Institute of Geoscience and Mineral Resources, 124, Gwahang-no, Yuseong-gu, Daejeon, 305-350, South Korea, BAEK, Hwanjo, Energy and Resource Engineering, Department of Energy and Resource Engineering, Chuncheon Kangwon, Chuncheon, 200-701, South Korea, KIM, Daehoon, Department of Energy and Resource Engineering, Kangwon National University, KOREA, Department of Energy and Resource Engineering Kangwon National University, Chuncheon Kangwon, KOREA, Chuncheon Kangwon, 200-701, South Korea and PARK, Seunghwan, Department of Energy and Resource Engineering, Kangwon National University, Chuncheon Kangwon, KOREA, Department of Energy and Resource Engineering Kangwon National University, Chuncheon Kangwon, KOREA, Chuncheon Kangwon, 200-701, South Korea, kss@kigam.re.kr

As the basic research for rock mass classification systems to limestone mining in Korea, the geological ground survey, analysis of geological structure, rock mass classification were conducted in the Nammyeong mining of Maepo-eup, Danyang-gun, Chungcheongbuk-do and the Sambo mining of Imgye-myeon, Jeongseon-gun, Gangwon-do, Korea.

The geology of Sambo mining site consists of the Yeongheung Formation, the Samtaeson Formation that Great limestone group, and later intrusive basic dikes. Most strike of the joints has orientations to N35W and N65W and the distribution of poles is scattered. The geology of Nammyeong mining site belongs to the Formation of the Joseon Supergroup and consists of the Jangsan quartzite formation, the Myobong formation, the Pungchon formation, the Hwajeol formation, the Dongjeom formations, the Dumugol formation, the Magdong Formation, the Jigunsan formation. Most strike of the joints has orientations to N30E and N45W and the distribution of poles is scattered and steep.

The surveying for GSI mapping as well as calculating RMR and Q-system values was undertaken at Sambo and Nammyeong underground limestone mining sites. the correlation between RMR and Q-system values was analyzed. Consequently, the obtained result is similar with the result of Bieniawski(1984). However, the correlation coefficient is lower as R2=0.43 than the rseult(R2=0.77) of Bieniawski(1984) due to the lack of data quantity obtained. Therefore, if the datas of rock mass classification are obtained by the field survey for other limestone mine areas in Korea and the correlation analysis is conducted, the correlation equation for limestone mining in Korea can be derived.

Session No. 312

T70. Advances in Principles and Practice of Engineering Geology During the Past 50 Years
Wednesday, 30 October 2013: 8:00 AM-12:00 PM
Room 203 (Colorado Convention Center)
Geological Society of America Abstracts with Programs. Vol. 45, No. 7, p.718
© Copyright 2013 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.
Back to: T70. Advances in Principles and Practice of Engineering Geology During the Past 50 Years
<< Previous Abstract | Next Abstract >>