Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/44681
標題: Identification of groundwater sources of a local-scale creep slope: Using environmental stable isotopes as tracers
作者: Peng, T.R.
彭宗仁
Wang, C.H.
Hsu, S.M.
Wang, G.S.
Su, T.W.
Lee, J.F.
關鍵字: Environmental stable isotopes
Slope groundwater source
Creep slope
Taiwan
water
precipitation
hydrology
deuterium
hydrogen
tritium
taiwan
o-18
期刊/報告no:: Journal of Hydrology, Volume 381, Issue 1-2, Page(s) 151-157.
摘要: Water plays an important role for slope stability and typically consists of local precipitation (LP) and original slope groundwater (OSGW); high amount of the OSGW leads the slope groundwater (SGW) easily to exceed the critical level that causes slope failure in a heavy raining event. This study was to verify the source and significance of the OSGW for a creep slope adjoining a hydropower plant, northern Taiwan by an environmental stable isotope approach. Isotope results indicate that the source of the OSGW derived from leaking of the water-transporting system of the power plant; the leaking fraction in the SGW is as high as 70-80%. High leaking component in the SGW indicates that the leaking water rather than local precipitation is the crucial factor for the mass movement of the creep slope. Since the mass movement poses a potential threat to the hydropower plant safety, the most important measure for the remedial project is to perform a comprehensive check and repair the leak of the water-transporting system. (C) 2009 Elsevier B.V. All rights reserved.
URI: http://hdl.handle.net/11455/44681
ISSN: 0022-1694
文章連結: http://dx.doi.org/10.1016/j.jhydrol.2009.11.037
Appears in Collections:土壤環境科學系

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