Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2003.03a
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- Pages.481-484
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- 2003
Effect of Acid Drainage and Countermeasure about Road Cut Slope Environment
도로절개면 환경에 관한 산성배수의 영향과 대책
Abstract
Sulfide minerals contacted with air and water in coal seam cause oxidation reactions. This oxidation reactions make low pH of groundwater and surface water(Acid Drainage). The reddish brown precipitate collected from the cut slope of the study area was estimated using the X-Ray Diffractometer(XRD). XRD results show that the cut slope was affected by Acid Drainage. The cut slope exposured to Acid Drainage become weak about chemical weathering and defile the appearance of the road. Drainage facilities are very important in Cut Slope under Acid Drainage influence. Reactions between Coal seam and water cause chemical weathering and environmental problem. Therefore It is important to control the transfer paths of groundwater and surface water and to install water collecting facilities