포항분지 제3기 이암의 산성배수 발생 능력
Acid Rock Drainage Generation Capacity of Tertiary Mudstone in Pohang Basin
2
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
본 연구에서 포항 제3기 이암의 실내시험을 통해 기본적인 특성과 산성배수 발생능력을 파악하였다. XRF 분석 결과 성분이 약 60%로 가장 많이 포함되어 있으며, 다음으로 와 순으로 산성배수 발생 개연성이 높은 산화물이 많이존재함을 알 수 있다. XRD 분석 결과 이암이 황철석( )을 포함하고 있어 산성배수 발생 개연성이 높은데, 유도결합플라즈마 분광분석기(ICP)로 분석 결과에서도 이암 시료에서 이온이 높게 측정되었다. 이온 크로마토그래피(IC)로 측정한음이온 분석 결과 모든 이암 시료 농도가 높게 측정되었다. 원소 분석결과 총 황(S) 함량이 높아 최대 산 발생량(MPA) 계산 결과 1% 이상으로 산성배수 발생 위험이 높게 나타났다. 결론적으로 제3기 이암은 시료에 따라 다소 차이가 있으나전반적으로 산성배수 발생능력이 높은 것으로 나타났다.
Abstract
This study determines the basic properties and acid rock drainage generation capacity of Pohang tertiary mudstone through laboratory experiments. According to X-ray fluorescence (XRF) analysis results, the mudstone of this area mostly comprised of with a proportion of approximately 60%, followed in order by and . As such, it is clear that there is an abundance of aluminosilicates with a high probability of generating acid rock drainage. The XRD analysis showed that the mudstone contains pyrite ( ), it is highly likely to generate acid rock drainage, and inductively coupled plasma atomic emission spectroscopy (ICP-AES) analysis results showed that the mudstone samples contained a high amount of ions. As a result of anion analysis measured by ion chromatography (IC), all mudstone samples were measured to have high concentrations. According to elemental analysis, the total sulfur (S) content was high, which in turn indicates a high risk of acid rock drainage generation reflected by a maximum potential acidity (MPA) higher than 1%. All in all, although there were slight deviations between the tertiary mudstone samples, overall, the samples exhibited high acid rock drainage generation capacities.
참고문헌 (20)
- Baek, I. -W., "Characteristics of Banking Structures Constructed with Improved Tertiary Mudstone with Composite Slag and Neutralizing and Coating Agents", MS, pp.2020
- 반호기, "경기도 여주지역 미고결 이암의 공학적 특성", 한국지반환경공학회 논문집, 16(12), pp.53~58 (2015), 한국지반환경공학회[DOI]
- 최은경, "경상분지 쇄설성 퇴적암의 대자율 이방성 연구", 한국지반공학회논문집, 34(8), pp.5~14 (2018), 한국지반공학회[DOI]
- Gillott, J. E., "Clay in Engineering Geology", pp.296~ (1968), Elsevier
- Godfrey, N., "A Field Recognition Guide to Swelling Clay Rich Weathering Profiles in Overburden Sediments in the Northern Bowen Basin. "Sediments Through the Ages"", Proc 5th Australian Geological Convention (1980), Geological Society of Australia Inc
- Jeong, G. -B., "A Study of Engineering Characteristics and Deformation Behavior of Pohang Mudstone", Ph. D., pp.2006
- Technology Development for Damage Reduction and Ecosystem Restoration in Acid Drainage Producing Construction Site, "KIGAM", 160~, pp.GP2017-041-2019 (2019)
- 김재곤, "건설현장 산성배수의 발생현황 및 피해저감대책", 자원환경지질, 40(5), pp.651~660 (2007), 대한자원환경지질학회
- Kim, J. W., "Estimation of Chemical Weathering Index and Rock Property Reduction Considering Anisotropy of Clastic Sedimentary Rock in Korea", Ph. D., pp.2017
- Kim, K. S., "Failure Characteristics of Cut Slopes of Shale in Kyoungsang Basin", Proceedings of the seminar and field workshop for mudstone and shale, organized by the Korean Geotechnical Society for Rock Mechanics Commission, pp.103~114 (2002)
- 김성욱, "국내 쇄설성 퇴적암의 화학적 풍화지수 고찰", 지질공학, 27(1), pp.67~79 (2017), 대한지질공학회
- 이규호, "건설현장 절취사면의 산성암반배수 발생특성과 잠재적 산발생능력 평가", 자원환경지질, 38(1), pp.91~99 (2005), 대한자원환경지질학회
- Lee, N. Y., "Problems in Construction of Tunnel and Rock Slope at Mudstone and Shale Region", Proceedings of the seminar and field workshop for mudstone and shale, organized by the Korean Geotechnical Society for Rock Mechanics Commission, pp.115~140 (2002)
- 이영휘, "응력수준 및 함수비에 따른 이암의 Creep 특성에 관한 연구", 한국지반환경공학회 논문집, 13(3), pp.39~51 (2012), 한국지반환경공학회
- Park, H. D., "Engineering Geological Properties of Mudstone and Shale", Proceedings of the Seminar and Field Workshop for Mudstone and Shale, organized by the Korean Geotechnical Society for Rock Mechanics Commission, pp.18~30 (2002)
- Smart, R., "ARD test handbook: Project P387A, A Prediction and Kinetic Control of Acid Mine Drainage", AMIRA international Ltd., A4~A8 (2002)
- A Review of Engineering Experiences with Expansive Soils in Highway Subgrades, Waterways Experiment Station, "Snethen, D. R.", NTIS, 4~25, pp.NTIS No. ADA 020309 (1975)
- Field and Laboratory Methods Applicable to Overburdens and Minesoils, "Sobek, A. A.", U.S. Environmental Protection Agency, 47~50, pp.EPA 600 (1978), 2-78-054
- Taylor, R. K., "Laboratory Investigation of Mudrocks", Quarterly Journal of Engineering Geology and Hydrogeology, 14, pp.291~309 (1981)
- Van Eeckhout, E. M, "The Mechanisms of Strength Reduction Due to Moisture in Coal Mine Shales", International Journal of Rock Mechanics and Mining Science and Geomechanics Abstracts, 13(2), pp.61~67 (1976)