도로 암반 절취사면에 대한 산 발생능력 평가의 사례연구
A Case Study of Evaluation of Acid Producing Potential of Road-cut Rock Slopes
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Acid rock drainage (ARD) developed as a result of road construction imposes various engineering, environmental, and social problems. Engineering impacts from ARD, the product of atmospheric oxidation of rock-forming sulfide minerals, including degradation of surface water quality, disintegration of construction materials, and structural damage of buildings, have been documented widely around the world. Evaluation of acid producing potential of earth materials is strongly suggested as an essential step in the pre-design stage of construction works especially in the vicinity of mining areas. To characterize the ARD and to evaluate acid producing potential of road-cut rocks, samples of rocks and water were collected from two road-cut sites of shale to phyllite showing such visual indicators of ARD as orange precipitates along streambed and rocks. Acid Base Accounting (ABA) and Net Acid Generation (NAG) test, the most commonly applied static test to evaluate the potential acidity, and X-ray diffraction (XRD) and X-ray Fluorescence (XRF) analysis were performed for fifteen rock samples. As a result, in terms of NAPP (Net Acid Producing Potential) and NAGpH (pH of Net Acid Generation), seven, four, and four rock samples were classified into a PAF (potentially acid forming) group, a NAF (non-acid forming) group, and an uncertain group, respectively. Water samples with low pH of 4.4, low dissolved oxygen (DO), and high contents of heavy metals and sulfate ion confirmed that the classification scheme by NAPP and NAGpH can be a reliable tool to assess acid producing potential of rock mass.
Abstract
Acid rock drainage (ARD) developed as a result of road construction imposes various engineering, environmental, and social problems. Engineering impacts from ARD, the product of atmospheric oxidation of rock-forming sulfide minerals, including degradation of surface water quality, disintegration of construction materials, and structural damage of buildings, have been documented widely around the world. Evaluation of acid producing potential of earth materials is strongly suggested as an essential step in the pre-design stage of construction works especially in the vicinity of mining areas. To characterize the ARD and to evaluate acid producing potential of road-cut rocks, samples of rocks and water were collected from two road-cut sites of shale to phyllite showing such visual indicators of ARD as orange precipitates along streambed and rocks. Acid Base Accounting (ABA) and Net Acid Generation (NAG) test, the most commonly applied static test to evaluate the potential acidity, and X-ray diffraction (XRD) and X-ray Fluorescence (XRF) analysis were performed for fifteen rock samples. As a result, in terms of NAPP (Net Acid Producing Potential) and NAGpH (pH of Net Acid Generation), seven, four, and four rock samples were classified into a PAF (potentially acid forming) group, a NAF (non-acid forming) group, and an uncertain group, respectively. Water samples with low pH of 4.4, low dissolved oxygen (DO), and high contents of heavy metals and sulfate ion confirmed that the classification scheme by NAPP and NAGpH can be a reliable tool to assess acid producing potential of rock mass.
참고문헌 (33)
- 강지훈, "미원-보은지역에서 옥천변성대의 지질구조", 암석학회지, 11(3-4), pp.9~249 (2002), 한국암석학회
- 이규호, "산성암석배수에 의한 절취사면 구조물의 피해 현황과 평가", 한국지반공학회논문집, 51(5), pp.82~92 (2005)
- 이규호, "건설현장 절취사면의 산성암반배수 발생특성과 잠재적 산발생능력 평가", 자원환경지질, 38(1), pp.91~99 (2005), 대한자원환경지질학회
- 임길재, "경남 일부 지역에 대한 산성암석배수 발생 예측 및 의의", 한국지구시스템공학회지, 43(4), pp.350~358 (2006), 한국지구시스템공학회
- 자원개발연구소, "한국지질도 미원도폭(1:50,000)", ~ (1979)
- 지상우, "도로 건설에 의해 노출된 절취사면 암석에 대한 산성암석배수 발생 평가", 한국지구시스템공학회지, 43(4), pp.339~349 (2006), 한국지구시스템공학회
- 백승한, "건설현장에서 발생되는 산성암석배수의 발생 예측", 한국지구시스템공학회지, 44(1), pp.82~93 (2007), 한국지구시스템공학회
- 최석원, "청주-상주간 고속도로 예정구간의 회북지역에 대한 지질학적 및 수리지구화학적 특성", 지질학회지, 37(1), pp.83~106 (2001)
- Adams, C.B., "Geochemical mornitoring of Kiser Creek, near Buchanan, Haralson County, Georgia: the effects of pyrite-rich rocks on the pH, iron, and sulfate content of surface water", Georgia J. Sci, 57(2), pp.113~122 (1999)
- ASTM, "D5774-96, Standard test method for accelerated weathering of solid materials using a modified humidity cell", Annual Book of ASTM Standards, 11(4), pp.259~271 (1998)
- Caruccio, F.T., "An evaluation of factors affecting acidic mine drainage production and the ground water interaction", pp.107~151 (1968), on Coal Mine Drainage Research
- Daniels, W.L., "“Acid rock drainage from highway and construction activities in Virginia, USA”, 6th. ICARD Conf., Cairns, QLD, AU, 12-18 July 2003, pp. 497-487", 6th.ICARD Conf.,Cairns,QLD,AU,12-18 July, 497~487 (2003)
- diPretoro, R.S., "Use of acid-base accounts in pre-mining prediction of acid drainage potential: a new approach form Northern West Virginia", Proceeding Mine Drainage and Surface Mine Reclamation, 1, pp.1~10 (1988)
- Erickson, P.M., "Evaluation of overburden analytical methods as a means to predict post-mining coal mine drainage quality", Proceeding Mine Drainage and Surface Mine Reclamation, 1, pp.11~19 (1988)
- Ferguson K.D., "The prediction of acid rock drainage - Lesson from the database", on the Abatement of Acidic Drainage, 3, pp.85~106 (1991)
- Fox, D., "Pyrrhotite and associated sulfides and their relationship to acid rock drainage in the Halifax Formation, Meguma Group, Nova Scotia", Atlantic Geology, 33, pp.87~103 (1997)
- Gautama, R.S., "Improve the accuracy of geochemical rock modelling for acid rock drainage prevention in coal mine", Mine Water and Environment, 23, pp.100~104 (2004)
- Ian Wark Research Institute, "ARD Test Handbook, AMIRA International Ltd., pp. A1-D-5", ~ (2002)
- Igarishi, T., "Deterioration of water quality in a reservoir receiving pyrite bearing rock drainage and its geochemical modelling", Engineering Geology, 55, pp.45~55 (1999)
- Kargbo, D.M., "A simple accelerated rock weathering method to predict acid generation kinetics", Environmental Geology, 46, pp.775~783 (2004)
- Kelly, D.A., "Successive alkalinity-producing system(SAPS) for the treatment of acidic mine drainage", SAPS) for the treatment of acidic mine drainage” International Land Reclamation and Mine Drainage Conference and the Third International Conference on the Abatement of Acidic Drainage, 1, pp.195~204 (1994)
- Lapakko, K.A., "Prediction of acid mine drainage from Duluth Complex mining wastes in northeastern Minnesota, Mine Drainage and Surface Mine Reclamation, Mine Water and Mine Waste", Proc. of the 1988 Mine Drainage and Surface Mine Reclamation Conference. U.S. Bureau of Mines IC9183, 1, pp.180~190 (1988)
- Lapakko, K.A., "Modification of the ASTM 5744-96 kinetic test", Modification of the ASTM 5744-96 kinetic test” Proc. of the 5th International Conference on Acid Rock Drainage. Society for Mining Metallurgy and Exploration, 1, pp.631~639 (2000)
- Lawrence, R., "Chemical Prediction Technique for ARD” Short Course Note, the 4th International Conference on Acid Rock Drainage", pp.20~44 (1997), Vancouver
- Mathew, R.C. Jr, "Toxicity of Anakeesta Formation leachates to shovel-nosed salamander, Great Smoky Mountain National Park", J. Environ. Qual, 11, pp.102~106 (1982)
- Orava, D., "In-Pit disposal for ARD control" (1997), Vancouver
- Orndorff, Z.W., "Evaluation of sulfidic materials in Virginia highway corridors", 석사, pp.2001
- Sengupta, M., "Environmental Impact of Mining: Monitoring, Restoration, and Control", pp.494~ (1993), Lew Pub
- Singer, P.C., "Acid mine drainage: the rate-determining step", Science, 167, pp.1121~1123 (1970)
- Skousen, J., "Acid-Base Accounting to predict post-mining drainage quality on surface mines", J. Environ. Qual, 31, pp.2034~2044 (2002)
- Field and laboratory methods applicable to overburdens and mine soils, "Sobek, A.A.", ~, pp.EPA-600 (1978), 2-78-054
- Sobek, A.A., "Chemical and physical properties of overburdens and mine soils", Amer. Soc. Agron. Monograph, (41), pp.77~104 (2000)
- Surface Mine Drainage Task Force, "Suggested guidelines for method of operation in surface mining of areas with potentially acid-producing materials" (1979), West Virginia Mining and Reclamation Association