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臺灣能源期刊論文全文

臺灣能源期刊第1卷第2期內容

出刊日期:March, 2014

題目
地熱發電廠之地表環境地質評估-以臺東縣賓茂與金崙溫泉場址為例
Title
Environmental Geological Assessment of Geothermal Power Plant - A Case of Chinlun, Taitung, Taiwan
作者
翁勳政、韓吟龍、劉智超、郭泰融、廖啟雯
Authors
Tsun-Cheng Weng, Yin-Lung Han, Jyh-Chau Liou, Tai-Rong Guo, Chi-Wen Liao
摘要
臺灣地熱區多位處山坡地自然環境敏感地帶,對於這些地區的開發與利用,如何防範或避開可能的地質災害,為地熱電廠開發亟需重視之問題。本研究提出『環境地質潛勢影響區評估法』之觀念,並結合『環境地質圖』與『環境地形圖』兩圖件,以提升傳統環境地質運用功能。本研究以洪氾、土石流、河岸侵蝕、山崩與地滑等5項潛勢影響評估因子,評估金崙地熱潛能區之兩處預定場址(賓茂及金崙溫泉)之潛勢影響區,以作為未來地熱電廠位置選定參考之依據。根據綜合評估結果,各預定場址之潛勢影響區說明如下:(1) 賓茂場址之低潛勢影響區呈零星分布,較不利電廠建置利用,然若能解決洪氾對其潛在的影響,則可大幅增加低潛勢影響區的分布範圍;(2) 金崙溫泉場址之南北兩側各有一處低潛勢影響區,其中以南側部分面積較大,較有利於電廠建置利用。
關鍵字
地熱電廠、環境地質潛勢影響評估法、環境地形圖
Abatract
Most geothermal fields in Taiwan are located at mountainous areas. It is very important to avoid possible environmental disasters during the geothermal exploitation and operation stages. In this paper, we proposed an “environmental geological assessment” method which combines the use of both environmental geology map and environmental geomorphology map. Five factors are considered in the evaluation process, including flooding, debris flow, bank erosion, debris slide, and landslide. By using proposed method, two significant findings at Chinlun geothermal area are described as follows: (1)Low-hazard zones at Bingmao site are relatively sparse and smaller, and thus are unfavorable for land utilization. Low-hazard zones can be enlarged by implementing counter measures to flooding hazard. (2) Two low-hazard zones are identified near Chinlun hot spring site. The south zone is larger when compared with the northern one, and is deemed more suitable for power plant development.
Keywords
Geothermal power plant, Environmental geological assessment method, Environmental geomorphology map