地温測定法應用於地滑區域內追踪地下水流脈可行性之研究

地層滑動發生後，常於其現場發現崖坡或堆積層之間，有湧出之地下水脈。因此地下水脈與地層滑動，常具有極大的影響力，因此在地滑調査治理過程中，常用各種不同的調査方法，諸如追蹤劑法，地下水位觀測法，抽水試驗，水質檢驗及其他方法等，加以調査。各項傳統性方法需費長時間或龐大經費；本項研究係利用簡易方便之地表溫度調査法，探討此一方法在台灣地區之可行性之研究。經將此一方法運用在花蓮安通及梨山松茂兩處地滑區，追蹤調査其地下水脈。經由理論之研究分析及現場實驗資料之對比，顯示此一新方法在調査崩坍地地下水脈頗為有效。試驗結果證實地溫調査法可獲得與地層及垂直溫度檢層一致的資料。其結果可供研究及工程規劃設計者之參考。

關鍵字

地下水脉；地温測定；地滑地調査

並列摘要

In the landslide area, it is often found in situ that ground water gushes out like a vein-stream, from the main scarp or part of deposit. It reveals that the ground water flowing is highly related to the stability of the moving mass on a slope, thus the ground water investigation is one of essential processes of landslide investigatigation and planning and designing control measures. The traditional methods of ground water investigation, such as tracer method, ground water level test, pumping test, water quality examination and others, cost money and need relatively long period of time for a investigation. The newly developed method named Geo-temperature Measurement Method seems a relative low cost and convenient method to ground water vein investigation. This study is trying to find out the feasibility of the method applied to investigate the ground water vein in landslide area in Taiwan. In this study, the geo-temperature measurement hand been applied to survey the ground water vein in two landslides, An-tong, Hualien County and Shong-mao, Li-shan area. The results, both on theoretical study and field experiment, reveal that data obtained matches with those of geological stratification method and vertical temperature logging. It is considered as a useful method for surveying the ground water vein in landslide area, and the data obtained by this method may offer basic information to both further research and designers of control measures.

並列關鍵字

ground water vein ； geo-temperature measurement ； landslide investigation

國際替代計量

地温測定法應用於地滑區域內追踪地下水流脈可行性之研究

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