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題 名 | 地下水文地質特性參數量測--雙封塞技術之應用=Measuring Subsurface Hydrogeological Parameters Using Double-Packer Techniques |
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作 者 | 蔣立為; 歐陽湘; 杜培欣; | 書刊名 | 地工技術 |
卷 期 | 69 1998.10[民87.10] |
頁 次 | 頁15-24 |
專 輯 | 新科技在大地工程之應用 |
分類號 | 452.29 |
關鍵詞 | 水文地質; 充氣式雙封塞; 裂隙; 水力傳導係數; 井孔微流速儀; Hydrogeology; Pneumatic double-packer; Fracture; Hydraulic conductivity; Borehole micro-flowmeter; |
語 文 | 中文(Chinese) |
中文摘要 | 隨著地下工程需求之成長,地下地質與工程環境的調查技術愈形重要,如何確實 掌握地底下的狀況攸關工程的成敗。近幾年來,許多的量測技術都已陸續發展出 來,可直接利用鑽探的井孔來施測,以求取現地的各種特性參數,或藉由幾個井 孔之施測而將資料的擷取由點擴至面,這樣的技術我們可統稱為井孔量測技術 (Borehole Measurements)。 井孔量測技術包含地質鑽探(Borehole Drilling)、岩心鑑定(Core Logging)、 岩石力學(Rock Mechanic Tests)、地球物理井測(Geophysical Well Logging)、 地球化學(Geochemistry)及水文地質(Hydrogeology)特性試驗等項目。為能 充份瞭解井孔內或附近地層岩性構造與量化數據,絕非上述單一技術可以克盡全 功;因此各單項技術間需充份協調與合作,除可交互驗證調查或試驗資料外,方 可同時改進井孔量測技術與修正試驗方向,而使井孔獲得最大效益之資訊與數據。 本文主要目的除介紹各種地下水文地質特性之試驗方法與雙封塞搭配使用之 新技術外,並選擇一測試井孔(約100公尺深)進行現場單井雙封塞注入試驗 (Injection Test)與追蹤稀釋及擴散試驗(Tracer and Dilution Test),以求 取各裂隙段水力傳導係數值及流速值,同時亦將井孔微流速儀(Borehole Micro- Flowmeter)此項新科技如何用來研判井孔中主要流動層及裂隙段屬流入區 (Inflow/Source)或流出區(0utflow/Sink)之技術做一說明。 |
英文摘要 | Investigation techniques for characterizing subsurface geology and engineering environment are playing an important role in the booming of underground engineering explorations. Recently, several new investigation techniques which can be used through boreholes to determine useful parameters of subsurface formation have been developed. Such investigation techniques are generally called borehole measurements. Borehole measurements include borehole drilling, core logging, rock techanic testing, geophysical well logging, geochemical and hydrogeological testing etc. No single technique mentioned above can stand alone in characterizing the subsurface condition. In order to obtain the most valuable information, they must be used integrally and the results be cross-examined. The major purpose of this paper is to introduce the subsurface hydrogeological testing methods with the aids of double packers. The techniques are applied in a test borehole about 100m deep to conduct the injection test and tracer dilution test for obtaining the hydraulic conductivity and flow velocity of fractures- Another new instrument called borehole micro-flowmeter for identifing the major flow zones is also introduced. |
本系統中英文摘要資訊取自各篇刊載內容。