An Evaluation of Acid Rock Drainage Generation at the Road Cut Slopes Exposed by Road Construction

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2006 Vol.43, Issue 4 Preview Page Next Page

An Evaluation of Acid Rock Drainage Generation at the Road Cut Slopes Exposed by Road Construction 도로 건설에 의해 노출된 절취사면 암석에 대한 산성암석배수 발생 평가: 지상우, 정영욱, 임길재, 이현석
Sang Woo Ji, Young Wook Cheong, Gil Jae Yim and Hyeon Seok Lee

31 August 2006. pp. 339-349

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Abstract

This paper reports a study that was carried out to evaluate the characteristics of the acid rock drainage (ARD) generation at the road cut slopes. Thirty one samples were taken from six road cut slopes which were exposed by road extension. They might be capable of contributing leachate to the lake near by. The results of the Acid-Base Accounting (ABA) test and the Net Acid Generation (NAG) test showed that most slopes except slope 2 could generate ARD. And rock fragments from the old road banks that remain exposed to the lake side were also classified as potential acid forming (PAF). It highlights one possibility that when the lake water rises up to the road bank, the slope surfaces are likely to react with lake water and generate ARD. Any road cut slope which have acid generating potential like slopes in this study, needs some kind of treatment such as mixing with alkaline materials, or coating for prevention of sulfide mineral oxidation, or even covering the surfaces to prevent oxidation depending upon the degree of its ARD generation potential. The application of the proposed ARD prediction method to the design of the public works would reduce related environmental problems.

Keywords

Road cut slope

ARD

ABA

NAG

본 연구는 도로 건설에 의해 발생되는 절취사면 암반에 대해 산성암석배수의 발생을 평가한 것이다. 호수변 도로의 확장에 의해 암반이 노출된 절취사면 6개소에서 31개의 지질시료를 채취하였고, 산-염기 평가법(Acid Base Accounting, ABA)과 순 산발생량 평가법(Net Acid Generation, NAG)을 수행한 결과 사면 2를 제외한 모든 사면의 암석에서 일부 또는 전부가 산성암석배수를 발생시킬 수 있는 것으로 나타났다. 또한 과거 도로 성토부를 구성하면서 호수변에 노출된 쇄설물과 호수 바닥퇴적물 역시 산발생력이 있는 것으로 나타나 호수 수위가 오르게 되면 호수물과 반응하게 되어 산성수를 발생시킬 수 있음을 보였다. 이러한 산성암석배수가 발생될 수 있는 암반사면에 대해 적절한 양의 알칼리를 투입하거나 산화 방지를 위한 피복 또는 산소차단을 위한 복토재의 활용 등 적절한 조치가 필요하다. 본 연구와 같이 산성암석배수 발생 사전 예측 방법을 토목공사의 설계과정에서 수행한다면 건설 사업에 의해 발생되는 대규모 사면이나 성토부로부터 발생될 수 있는 산성암석배수 문제를 해결하여 환경친화적인 건설이 가능해질 것이다.

키워드

절취사면

산성암석배수

산-염기 평가법

순 산발생량 평가법

References

김옥준, 이대성, 이하영, 1977, 보은 지질도폭 설명서
이규호, 김재곤, 박삼규, 이진수, 전철민, 김탁현, 2005, “산성암반배수에 의한 절취사면 구조물의 피해 현황과 평가,” 한국지반공학회논문집, 제 21권 5호, pp. 83-92.
지상우, 정영욱, 2005, “도로절개지 암석 및 광산폐석에 대한 산 발생 및 부식특성 평가,” 환경공학회지, 제 25권 제 4B호, pp. 291-300.
최석원, 이찬희, 원경식, 김일석, 2001, “청주-상주간 고속도로 예정구간의 회북지역에 대한 지질학적 및 수리지구화학적 특성,” 지질학회지, 37(1), pp. 83-106.
Daniels, W.L. and Orndroff, Z.W., 2003, Acid Rock Drainage from Highway and Construction Activities in Virginia, USA, in 6th. ICARD conference, Cairns, QLD, AU, 12-18 July 2003, pp. 479-487.
Hammarstrom, J.M., brady, K., and Cravotta, C.A., 2005a, Acid-rock drainage at Skytop, Centre Country, Pennsylvania, 2004, USGS Open-file report 2005-1148, p. 44.
Hammarstrom, J.M., Seal II, R.R., Meier, A.L. and Kornfeld, J.M., 2005b, Secondary Slfate Minerals Associated with Acid Drainage in the Eastern US: recycling of metals and acidity in surficial environments, Chemical Geology, 215, pp. 407-431.
Ian wark research institute, 2002, ARD Test Handbook, AMIRA international limited. pp. A1-D-5.
Orndorff, Z.W., 2001, Evaluation of Sulfidic Materials in Virginia Highway Corridors, thesis for PhD dissertation, Virginia Polytechnic Institute and State University, Virginia, USA, p. 175.
Orava, D., 1997, In-Pit disposal for ARD control, in Short course notes on Waste rock tailings disposal technologies for reactive waste management, 4th. Int’l conference on acid rock drainage, Vancouver, B.C. Canada.
SGE Acres LTD., 2004, Halifax International Airport, Economic Impacts 2003, Halifax International Airport Authority, p. 33.
Skeiiy and Loy, INC., 2004, Remediation Plan I-99 Construction Sections A12 and C12 Acid Rock Drainage, PenDOT, p. 51.
Sobek, A.A., Schuller, W.A., Freeman, J.R. and Smith, R.M., 1978 : Field and Laboratory Methods Applicable to Overburdens and Minesoils, EPA-600/2-78-054, USEPA.
Sobek, A.A., J.G. Skousen and S.E. Fisher, Jr.. 2000. Chemical and Physical Properties of Overburdens and Minesoils. pp. 77-104 In: R.I. Barnhisel et al.(Eds.). Reclamation of Drastically Disturbed Lands. American Soc. Agron. Monograph No. 41, Madison WI.
Stewart, W., 2005, Development of Acid Rock Drainage Prediction Methodologies for Coal Mine Waste, thesis for PhD dissertation, Ian Wark Research Institute, Univ. of South Australia, p. 317.
Surface Mine Drainage Task Force, 1979. Suggested Guidelines for Method of Operation in Surface Mining of Areas With Potentially Acid-Producing Materials. West Virginia Mining and Reclamation Association, Charleston, WV.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society for Geosystem Engineering
Journal Title(Ko) :한국지구시스템공학회지
Volume : 43
No :4
Pages :339-349

[1] 김옥준, 이대성, 이하영, 1977, 보은 지질도폭 설명서

[2] 이규호, 김재곤, 박삼규, 이진수, 전철민, 김탁현, 2005, “산성암반배수에 의한 절취사면 구조물의 피해 현황과 평가,” 한국지반공학회논문집, 제 21권 5호, pp. 83-92.

[3] 지상우, 정영욱, 2005, “도로절개지 암석 및 광산폐석에 대한 산 발생 및 부식특성 평가,” 환경공학회지, 제 25권 제 4B호, pp. 291-300.

[4] 최석원, 이찬희, 원경식, 김일석, 2001, “청주-상주간 고속도로 예정구간의 회북지역에 대한 지질학적 및 수리지구화학적 특성,” 지질학회지, 37(1), pp. 83-106.

[5] Daniels, W.L. and Orndroff, Z.W., 2003, Acid Rock Drainage from Highway and Construction Activities in Virginia, USA, in 6th. ICARD conference, Cairns, QLD, AU, 12-18 July 2003, pp. 479-487.

[6] Hammarstrom, J.M., brady, K., and Cravotta, C.A., 2005a, Acid-rock drainage at Skytop, Centre Country, Pennsylvania, 2004, USGS Open-file report 2005-1148, p. 44.

[7] Hammarstrom, J.M., Seal II, R.R., Meier, A.L. and Kornfeld, J.M., 2005b, Secondary Slfate Minerals Associated with Acid Drainage in the Eastern US: recycling of metals and acidity in surficial environments, Chemical Geology, 215, pp. 407-431.

[8] Ian wark research institute, 2002, ARD Test Handbook, AMIRA international limited. pp. A1-D-5.

[9] Orndorff, Z.W., 2001, Evaluation of Sulfidic Materials in Virginia Highway Corridors, thesis for PhD dissertation, Virginia Polytechnic Institute and State University, Virginia, USA, p. 175.

[10] Orava, D., 1997, In-Pit disposal for ARD control, in Short course notes on Waste rock tailings disposal technologies for reactive waste management, 4th. Int’l conference on acid rock drainage, Vancouver, B.C. Canada.

[11] SGE Acres LTD., 2004, Halifax International Airport, Economic Impacts 2003, Halifax International Airport Authority, p. 33.

[12] Skeiiy and Loy, INC., 2004, Remediation Plan I-99 Construction Sections A12 and C12 Acid Rock Drainage, PenDOT, p. 51.

[13] Sobek, A.A., Schuller, W.A., Freeman, J.R. and Smith, R.M., 1978 : Field and Laboratory Methods Applicable to Overburdens and Minesoils, EPA-600/2-78-054, USEPA.

[14] Sobek, A.A., J.G. Skousen and S.E. Fisher, Jr.. 2000. Chemical and Physical Properties of Overburdens and Minesoils. pp. 77-104 In: R.I. Barnhisel et al.(Eds.). Reclamation of Drastically Disturbed Lands. American Soc. Agron. Monograph No. 41, Madison WI.

[15] Stewart, W., 2005, Development of Acid Rock Drainage Prediction Methodologies for Coal Mine Waste, thesis for PhD dissertation, Ian Wark Research Institute, Univ. of South Australia, p. 317.

[16] Surface Mine Drainage Task Force, 1979. Suggested Guidelines for Method of Operation in Surface Mining of Areas With Potentially Acid-Producing Materials. West Virginia Mining and Reclamation Association, Charleston, WV.

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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