• 제목/요약/키워드: mine

검색결과 2,157건 처리시간 0.038초

Effects of Soil Neutralizing Treatments on Soil Characteristics and Growth of Aster koraiensis in the Acid Soil of Abandoned Metal Mine

  • Jung, Mun Ho;Lee, Sang Hwan;Kim, Yoon Su;Park, Mi Jeong
    • 한국토양비료학회지
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    • 제49권3호
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    • pp.287-292
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    • 2016
  • The objectives of this study were to investigate the effects of soil neutralizing treatments on soil characteristics and growth of Aster koraiensis in the acid soil of abandoned metal mine for selection of proper neutralizer. The most effective neutralizers were acid mine drainage sludge, waste lime + oyster and compost. Those neutralizing treatments showed promoting growth of Aster koraiensis. According to this study, it is applicable of acid mine drainage sludge, waste lime + oyster and compost to neutralize acid soil for rehabilitation in abandoned metal mine. However, follow-up study is necessary to calculate proper ratio of each neutralizer.

Mine 알고리즘 : 인간의 행동을 모방한 메타휴리스틱 (Mine Algorithm : A Metaheuristic Imitating The Action of The Human Being)

  • 고성범
    • 정보처리학회논문지B
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    • 제16B권5호
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    • pp.411-426
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    • 2009
  • 대부분의 메타휴리스틱들은 동물의 행동을 모방한 것이다. 본 논문에서는 Mine 알고리즘을 제안한다. Mine 알고리즘(Mine Algorithm)은 인간의 행동을 모방한 메타휴리스틱이다. 탐색의 관점에서 인간의 노하우와 휴리스틱이 가장 잘 녹아 있는 업종은 광산업(mining industry)이다. Mine 알고리즘에서는 광산 업무에 초점을 맞추어서 인간의 행동패턴을 형식화한다. Mine 알고리즘은 다양한 탐색기법을 유연하게 구사하며, 그 때문에 광범위한 문제에서 고른 성능을 보인다. 즉, 범용성이 양호하다. 우리는 기존 메타휴리스틱들과의 비교 실험을 통하여 Mine 알고리즘의 개선된 범용성을 보인다.

경상도 일대의 폐탄광 갱내수의 수질 특성 연구 (A Study on mine drainage characteristcs as abandoned Coal mine in Gyeongsang province)

  • 정영국;홍지혜;이동진;김정필;김대기;주상돈
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2008년도 추계 학술발표회
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    • pp.1440-1445
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    • 2008
  • There are 21 abondoned coal mines drained out mine water in gyeong sang do. We monitored the water quality of 31 mine drainage from 1995. The most of mine drainage was neutral as the average pH was 6.22 and Fe, Mn, Al concentration was below 10mg/L. The result showed the tendency of decreasing of flow and metal concentration. The highest Mn concentration was detected in bonghwa area and the hightest Fe concentration was detected in munkyung area. It means that the water quality is closly related to geological features.

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오봉댐 유역의 폐탄광에 의한 오염특성과 감소방안 연구 (Investigation on the Contamination of the Vicinity of Abandoned Coal Mines Located Near the Obong Darn and Preventive Measures)

  • 박선환;장윤영;정정호;손정호;박석효
    • 환경영향평가
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    • 제16권2호
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    • pp.143-156
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    • 2007
  • This study has researched the management status and the pollution level of water, soil, stream sediments of 11 abandoned coal mines out of a total of 12 within Obong-Dam area except Bukyung mine, which was submerged when constructing Obong-Dam, and selected areas which are in needs to have pollution control facilities in the first place. From the results of examination on the runoff at the waste rock pile and mineheads, the runoff from Sueun mine (pH, Fe, Al), Samwon mine (pH, Al), Wangdo mine (pH, Al), Mose mine (pH, Fe, Al) and Daeryeong mine (pH) exceeded the permissible discharge standards of the water quality, but the water at merging point with Obong-Dam after joined with Doma branch satisfied both Water Quality Standards and Drinking Water Quality Standards. In regard to groundwater contamination, it is found that areas where exceeded the Drinking Water Quality Standards are Wangdo mine (pH), Jangjae mine (pH, Zn), Daeryeong mine (pH) whereas all areas satisfied Soil Contamination Warning Standards of Soil Environmental Conservation Law. When comparing a research result on underwater sediments of branches of abandoned mines to the EPA Guidelines for classification of great lakes harbor sediments, Dongguk Gaerim (Fe), Jungwon mine (Fe), Daebo mine (Mn), Samwon mine (Mn) and Daeryeong mine (Mn) showed mid-level of contamination, whereas Sueun (Fe, Mn), Daebo mine (Fe), Woosung mine (Fe, Mn), Wangdo mine (Fe, Mn), Mose mine (Fe) and Daeryeong mine (Fe) showed high-level of contamination. In addition, contamination levels of underwater sediments in Wangsan and Doma branch where abandoned mine's branches merge together, Wangsan branch showed no contamination at all whereas Doma branch shows mid-level of contamination which reflect the Doma branch is affected by waste rock pile and minehead runoff of the abandoned mines in the Doma branch area. It is concluded that Mose mine and Sueun mine required treatment of acid mine drainage. and Wangdo, Jungwon, and Samwon mines were in need of mine tailing and erosion control work. The Samwon mine additionally required a control system for closed minehead runoff. Although the Samwon mine reached a high concentration of Al, Mn $Ca^{2+}$, $SO{_4}^{2-}$ in the runoff, the levels decreased after it was combined with a tributary. It has been concluded that after further monitoring of the cause of pollution, a preventive measure system may be needed to be built.

소나와 무인기뢰처리기 정보를 활용한 기뢰전 체계 설계 방안 (A System Design Method of Mine Warfare Using Information for SONAR and MDV)

  • 김준영;신창홍;김경희
    • 한국통신학회논문지
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    • 제39C권12호
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    • pp.1243-1249
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    • 2014
  • 기뢰는 수중에 설치되어 수상함과 잠수함을 공격하기 위한 폭발물로서, 기뢰전은 해군의 여러 가지 성분작전 중에서 매우 중요한 작전 중 하나이다. 본 논문은 기뢰전 일반 개념에 대한 이해로부터 기뢰탐색작전 및 소해작전의 소개와 본문에서 소개 할 몇 가지 기능을 통한 전반적인 기뢰전 체계 설계 방안을 제안한다. 기뢰전 체계의 기능으로는 소나 영상정보로부터 아다부스트 기법을 활용하여 기뢰영역을 탐지하는 기능과 기뢰탐색작전 및 소해작전의 수행 시 각각의 진행률을 계산하는 기능, 소나로부터 수신한 기뢰 표적으로 무인기뢰처리기를 유도하는 기능 등이 있다.

Management of Mining-related Damages in Abandoned Underground Coal Mine Areas using GIS

  • Kim Y. S.;Kim J. P.;Kim J. A.;Kim W. K.;Yoon S. H.;Choi J. K.
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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    • pp.253-255
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    • 2004
  • The mining-related damages such as ground subsidence, acid mine drainage(AMD), and deforestation in the abandoned underground coal mine areas become an object of public concern. Therefore, the system to manage the miningrelated damages is needed for the effective drive of rehabilitation activities. The management system for Abandoned Underground Coal Mine using GIS includes the database about mining record and information associated with the mining-related damages and application programs to support mine damage prevention business. Also, this system would support decision-making policy for rehabilitation and provide basic geological data for regional construction works in abandoned underground coal mine areas.

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DISTRIBUTION AND SCOPE ANALYSIS OF SOIL AND WATER POLLUTION CONTAMINANT AT ABANDONED METALLIFEROUS MINES USING GIS

  • Kim, Jung-A;Yoon, Suk-Ho;Choi, Jong-Kuk;Kim, Won-Kyun
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
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    • pp.721-724
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    • 2006
  • Among many sources of soil and water pollution, former mining regions also play an important role in distribution and scope of pollution. In response, KMRC has made an investigation into the status mine hazard at the abandoned metalliferous mine area in Korea. In this study, we analyzed distribution of mine hazards at abandoned metalliferous mines using GIS. We considered the distribution of mine hazards and its magnitude for each abandoned mine and displayed the mine hazard index (MHI) using GIS. We divided the MHI value for each mine into 5 classes, and displayed the first class as smallest point symbol and the last class as biggest point symbol. The biggest symbol shows the most serious status of mine hazards. This GIS function was included in the AMGIS system KMRS are running, and it would be helpful to make decision of reclamation priority at abandoned metalliferous mine area.

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페탄광GIS 구축방안에 관한 연구 (A Strategy for the Establishment of the Abandoned Mine GIS)

  • 정문섭;김윤상;최용복
    • Spatial Information Research
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    • 제10권1호
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    • pp.123-138
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    • 2002
  • 폐탄광 지역에서의 광해문제 해결과 재개발 및 경제활성화를 위해서 폐탄광 관련정보들을 체계적으로 관리 ·분석하는 폐탄광GIS의 구축이 요구되고 있다 국내외 사례분석을 통하여 기본개념을 구상했으며, 이를 바탕으로 삼척시 고사리 지역을 대상으로 시범시스템을 구축하였다. 시범시스템 구축을 통해 가장 합리적인 구축방법을 도출하고, 시범시스템 과정에서 도출된 문제점을 분석하여 항후 폐탄광GIS 구축사업의 향후 추진방안과 일정을 제시하였다.

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폐광 전후 삼탄 광산배수의 수질특성과 의의

  • 정영욱;강상수;임길재;홍성규;조원재;조영도;전호석;민정식
    • 한국지하수토양환경학회:학술대회논문집
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    • 한국지하수토양환경학회 2003년도 추계학술발표회
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    • pp.422-425
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    • 2003
  • This study was carried out to apprehend the variation of quality of mine drainage in the abandoned Samtan coal mine. After closure of coal mine, although still pumping, water level in underground was raised to loom and the concentration of some elements such as Fe and Mn was elevated. At present, the worst pollution source in this area is too the acidic leachate drained from uncovered mine waste impoundment. The flow rate of mine drainage from the adit is ave. about 20,000t/d. If water were flooded and deteriorated due to stopping pumping, the impact of the mine drainage on the stream around the abandoned mine would be more severe. Therefore, It is considered that the prediction of water quality of mine drainage from the adit after stopping pumping will be very important with a view to establishing countermeasures.

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충전율에 따른 폐광산 채굴적 공동의 변위거동에 관한 연구 (Study on Displacement Behavior of Abandoned Mine Goaf Cave According to Filling Factor)

  • 김동락;서인식
    • 한국산업융합학회 논문집
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    • 제14권4호
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    • pp.151-156
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    • 2011
  • The domestic mine development community the countermeasure establishment is insufficient about ground sinkage, not only the mine which is a in line is partial from the mine of the most which has become the rest mine and abandoned mine or the index sinkage occurs. The ground sinkage which occurs from the abandoned mine area most after operation is stopped, a long time passes and accurately predicts an occurrence location and a time with the residual sinkage which occurs, is difficult. Underground goaf of the abandoned mine and the closed shaft When considering the potentiality which causes the instability of ground, is a possibility of reaching a damage in the ground infrastructure or life. The underground shaft which is formed specially with mine development and goaf operates with the obstacle factor in the development project of the mine area, the ground sinkage which is caused by with sinkage, operates with the large safety accident occurrence factor where the important infrastructure of the railroad, road, residential area etc. is damaged. Therefore, In this paper, the goaf cave of the abandoned mine area, for the displacement behavior according to the filling factor of the material is to analyze the numerical analysis.