• Title/Summary/Keyword: 지질분류

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Physiographical, Geological, and Hydraulic Classification of Ground Water Occurrence in the Unconsolidated Formation, with Respect to the Economical Evaluation, in South Korea (우리나라 지하수(地下水) 부존상태(賦存狀態)의 지형학적(地形學的), 지리학적(地理學的) 유형분류(類型分類))

  • Jeong, Bong Il
    • Economic and Environmental Geology
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    • v.4 no.1
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    • pp.33-37
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    • 1971
  • Economical evaluation of an aquifer in an unconsolidated formation is based on the physiography, geology and hydraulics in it's loci. Since each foundation is controlled by the combination of several factors, these factors in each foundation will be explained in regard to their function, contributing to the yield of ground water from aquifers.

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풍화조사

  • 이수곤
    • Proceedings of the KSEG Conference
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    • 2004.03a
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    • pp.12001-12049
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    • 2004
  • 암석의 풍화과정은 화학적인 변질, 물리적인 분해 및 생물학적인 작용으로 나뉘어 진다. 풍화에 영향을 주는 요소는 기후, 조성광물의 종류 및 구조, 절리와 단층, 열수변질작용과 광화작용, 염기성 및 산성암맥과 지형 등이다. 또한 암석의 풍화는 성인에 따라 다양한 양상으로 진행되는데 이는 암석을 이루고 있는 각각 광물들이 열역학적인 반응경로가 서로 다르고, 이에 수반되는 물리적인 풍화진행속도가 차이가 있으며, 암석의 균질성, 투수성 등이 암종별로 다양하기 때문이다. 현장에서 암석의 풍화정도는 조성광물의 변질과 분해정도를 육안 등으로 정성적으로 판단하고 분류하는 것이 일반적이다. (중략)

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크리깅 기법에 의한 제주도 기저지하수의 수위 분포

  • 손주형;정상용
    • Proceedings of the KSEG Conference
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    • 2001.03a
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    • pp.141-151
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    • 2001
  • 제주도 지하수는 크게 상위지하수와 기저지하수로 분류된다. 해수와 수동역학적 균형을 유지하고 있는 기저지하수의 수위분포도 작성을 위하여 지구 통계기법인 정규크리깅과 코크리깅을 적용하였다. 정규크리깅에는 대수변환된 기저지하수위 자료만을 이용하였으며, 코크리깅에는 대수변환된 표고와 기저지하수위의 자료를 이용하였다. 그 결과 코크리깅에 의한 지하수위등고선도가 지형적인 변화가 복잡한 지역에서 더 정밀한 지하수위 등고선도를 만들 수 있었다.

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남한강 여주~이포 구간에서의 수해지형 고찰

  • 남욱현;김진관;양동윤;김주용;김종욱
    • Proceedings of the KSEEG Conference
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    • 2003.04a
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    • pp.161-164
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    • 2003
  • 하천 주변은 이미 선사시대부터 거주지나 농경지 등으로서 인간활동의 중요한 무대가 되었다. 그러나 하천은 끊임없이 변화하고 있으며, 그 변화는 특히 홍수의 형태로 인간에게 큰피해를 주어왔다. 인간은 이러한 하천의 변화에에 적응하거나 조절하고자 노력하면서 하천이 어떻게 변화하는가에 관심을 갖게 되었다. 자연적 또는 인위적인 변화가 하천과 홍수에 어떻게 영향을 미치는지에 대한 과학적 연구는 이미 수백년 전에 시작되었다. (중략)

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Characteristics of Tunnel Convergence Behaviour based on Variation of Rock Mass Rating (암반 등급 변화에 따른 터널 내공 변위 거동 특설)

  • Kim, Kwang-Yeom
    • The Journal of Engineering Geology
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    • v.18 no.4
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    • pp.545-553
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    • 2008
  • Face mapping and displacement monitoring during tunnel construction are the most influential information for the stability assessment of ground and around structures. Especially, the result of face mapping and displacement analysis is essential to the excavation and support design in NATM which is based on the drilling and blasting. However, there have not been so many studies to put those useful information into practice for decision-making process during construction. The study reviewed the tunnel behaviour based on the RMR rating and displacement monitoring when the geological condition of rock mass varies inevitably. The study analysed the crown settlement using convergence equation in order to compensate the disparity induced by the location and time of measurement and found a distinct relation between the geological condition and the line of influence. As a result of analysing the various parameters related to the tunnel convergence according to the geological condition, the study suggested the basic knowledge about the relation between face mapping and displacement behaviour of tunnel.

Distribution Characteristics of Geologic Age and Rock Type of Bedrocks at the National Wood Culture Heritage Site by GIS (GIS에 의한 국가지정 목조문화재 기반암류의 지질시대별 및 암층별 분포특성)

  • Yun, Hyun-Soo;Lee, Jin-Young;Kim, Yong-Won;Hong, Sei-Sun;Kim, Eun-Kyung
    • The Journal of the Petrological Society of Korea
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    • v.24 no.4
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    • pp.347-364
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    • 2015
  • The purpose of the work was carried out to contribute the factors related to geologic realm in the disaster stability evaluation items of the national wood culture heritages. Among the total heritages, the study targets mainly include 304 cases interpreted as a rock type in the geologic map of the bedrocks with GIS interpretation. The cases show the geologic ages, geologic provinces and rock types as the following distribution characteristics. In geologic ages, they are decreasing in the orders of Jurassic, Cretaceous, Quaternary, Precambrian, Age-unknown Cambro-Ordovician Carboniferous and Tertiary. Among the ages, the former fours occupy 285 cases (93.8%) of the targets, which show most of the wood culture heritages. In geologic provinces classified into 15, they are decreasing in the orders of Daebo intrusives, alluvium, Gyeongsang supergroup, Bulgugsa intrusives, Yeongnam massif, and Gyeonggi massif which occupy of predominant distribution 271 cases (89.1%) of them. In rock types of 52, those of 6, which are Jgr, Qa, Kp, Krt+Kav+Kav1+Kav2, Kbgr and GC2, occupy total 182 cases (59.9%) showing distinctly dominant trends from the rest of 46.

R&D Application Reinforcement Strategy and System for Public R&D Institute in Geoscience and Mineral Resource Area (지질자원분야 공공 연구기관 연구개발의 실용화 전략 및 시스템 연구)

  • Ahn, Eun-Young;Kim, Seong-Yong
    • Economic and Environmental Geology
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    • v.41 no.5
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    • pp.527-539
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    • 2008
  • To meet needs of R&D application reinforcement on geoscience and mineral resources area, we suggest public R&D institute's strategies and system for the application including supplement of technology licensing office (TLO). We review the former studies on technology transfer successfulness criteria and difficulties from the viewpoint of korean small&medium size firms and public R&D researchers, and then benchmark a japanese public R&D institute of industrial science and technology, which was newly integrated and developed with Geological Survey of Japan (GSJ). Application analysis index and the reinforcement strategy hierarchy for R&D project are established on geoscience and mineral resources area, and applied on the prioritized research projects of KIGAM. Empirical investigation was carried out on KIGAM researchers with practical studied analysis on questionnaire and intensive interview. Result of the analysis is identified and compared with the case in Japan. It is shown that KIGAM researchers feel their technology transfer activities are not yet integrated with TLO and commercialized R&D are not cooperated with them. This study proposes industrial cooperation coordinators in the categorized R&D divisions of public R&D institute based on the different R&D characteristics and needs in R&D application strategies.