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題 名 | 利用抽水試驗結果分析現地非等向水力參數研究=Analysis on the Anisotropic Hydraulic Parameters of an Aquifer with Pumping Test |
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作 者 | 鍾和達; 張國強; 溫志超; | 書刊名 | 農業工程學報 |
卷 期 | 51:4 民94.12 |
頁 次 | 頁29-39 |
分類號 | 351.85 |
關鍵詞 | 非均質; 非等向; 抽水試驗; Heterogeneous; Anisotropic; Pumping test; |
語 文 | 中文(Chinese) |
中文摘要 | 傳統飽和含水層之現地試驗通常假設為均質、等向的含水層中進行;但是大多數含水層皆具有非均質及非等向的特性,所以本研究改良Neuman等人(1984)提出的3口井分析方式,來進行現地含水層的非等向水力特性研究。水文學者以少數井所得到的現地資訊,並不足以代表整個現地唅水層的水力特性。因此,本研究利用國立雲林科技大學校園之地下水位監測場址進行抽水試驗。在分析過程中,本研究發現以多口監測井(多於4口井),其所獲得的現地資訊,較Neuman(10984)的所是出之3口井方式,更能代表現地含水層的水力特性。本研究結果發現非等向主流方向流通係數(□)與非等向側流方向流通係數(□)分別為3.00E-04 (□/s)與2.00E-04 (□/s)非等向主流方向水力傳導係數(□)與非等向側流方向水力傳導係數(□)分別為1.88E-05 (m/s)與1.25E-05 (m/s),等向流通系數□為2.40 E-04 (□/s),儲水係數S為3.22E-03。含水層非等向主流方儇與世界橫麥卡脫方格座標(又稱為UTM座標),UTM座標的X軸與所夾的角度為-39.32度。 |
英文摘要 | The study of the previous researches were based on the assumptions of an isotropic and homogeneous aquifer. In fact, the characteristics of a real aquifer are anisotropic and heterogeneous. Therefore, this study intends to reveal characteristics of anisotropic and homogenous hydraulic parameters of the aquifer based on Neuman’s model (1984). Hydraulic researchers obtain the in-situ data from few wells that can‘t represent the real hydraulic property of the aquifer. A pumping test was conducted though a group of observation wells established on the campus of National Yunlin University of Science and Technology. In the analysis process, the data of hydraulic properties of the aquifer taken form more than four monitoring wells were found to be better than Neuman’s (1984) three-well method. The results of this study are that the principal transmissivity (□) and lateral transmissivity (□) are 3.30 E-04(□/s) and 2.00 E-04(□/s) respectively; the principal hydraulic conductivity (□) and lateral hydraulic conductivity (□) are 1.88E-05(m/s) and 1.25 E-05 (m/s) respectively; the isotropic effective transmissivity □ is 2.40E-04 (□/s); and the storage coefficients S is 3.22E-03. The angle between the direction (α)of anisotropic coordinates(α,β)and the X-axis of normal coordinates (X,Y) is 39.32 degrees clockwise from the X-axis. |
本系統中英文摘要資訊取自各篇刊載內容。