電氣探測技術應用於地滑地之地層檢層分析

Applied Electrical Detection Technology to Landslide Area Stratigraphic Layering Aanalysis

徐弘明(Hong-Min Shu) ； 陳淑慈(Shu-Tzu Chen) ； 王啟鑫(Chi-Shin Wang) ； 許中立(Chung-Li Hsu)

《坡地防災學報》 18卷1期 (2019/06) Pp. 30-47

摘要

電氣探測法為地球物理探測法之一可用於地層的檢層分析，本研究利用電氣檢層技術針對臺東縣池上鄉山棕寮地滑地探求其地層分層變化，試驗檢測採用探測深度解析較佳的溫奈法，總計進行三條測線、八個測點共300公尺的測深。結果顯示本區的泥岩岩盤深度多在10公尺以內，各地區則略有差異，而部份出現封閉的低電阻區很可能是局部破碎帶而含水較多的區域，未來地下排水工程規劃施作前應可針對這些區域再詳加調查評估後辦理之，讓工程的效果能夠充份發揮。

關鍵字

電氣探測 ； 地層檢層 ； 地滑地 ； 地下水

並列摘要

Electrical detection is one of the geophysical methods that can be used for stratigraphic analysis of formations. In this study, the electrical layering technique was used to explore the stratigraphic stratification of Chishang landslide area in Township, Taitung County. Test of electrical detection using Winner method with better depth of detection, and total of three lines and eight points of measurement with a total of 300 meters. The results show that the mudstone rock depth in this area is more than 10 meters, and there are slight differences in each area. Part of the closed low-resistance zone is likely to be a partially fractured zone with high groundwater content. In the future, the underground drainage project planning should be carried out after detailed investigation and evaluation for these areas, so that the effects of the project can be fully utilized.

並列關鍵字

Electrical detection ； Stratigraphic layering ； Landslide area ； Groundwater