查詢結果分析
來源資料
頁籤選單縮合
題 名 | 坡地層土飽和水力傳導度之研究=A Study on Hydraulic Conductivity for Layered Soils |
---|---|
作 者 | 蔡義誌; 吳輝龍; 林俐玲; 杜怡德; | 書刊名 | 水土保持學報 |
卷 期 | 36:1 2004.03[民93.03] |
頁 次 | 頁19-33 |
分類號 | 434.222 |
關鍵詞 | 飽和水力傳導度; 單一土層; 複合土層; Saturated hydraulic conductivity; Single-layered soil; Double-layered soil; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究分為兩部分,第一部分為從六處山坡地分別採取擾動及未擾動土樣,作為的實驗材料進行實驗,分別量測未擾動土壤及重填土壤之飽和水力傳導度,嘗試尋找二者之關係;第二部分則進一步將不同地點之擾動土壤,重新組合,裝填成雙層之複合土層,再量測複合土層之飽和水力傳導度,並與理論計算之雙層土壤之水力傳導度值比較。第一部分之結果顯示,未擾動土層之飽和水力傳導度大多較重填土層之飽和水力傳導度為大,另根據實驗所得之土壤孔隙率(f)、幾何平均粒徑與有效粒徑之比(D)和重填土壤飽和水力傳導度(Kr),可將未擾動土壤飽和水力傳導度(Ku)表示為: Ku=2.931Kr-0.782f+2.21D-5.363 (R²=0.956**) 第二部分之結果顯示,複合土層理論之計算值Kc與實際量測雙層複合土層整體之飽和水力傳導度有高度之相關(r²=0.842**)。另外臺中大坑山區之土壤,其實測雙層複合土層的飽和水力傳導度(Km)與計算所得之飽和水力傳導度(Kc),有下列之關係: Km=100.089×0.947Kc (r²=0.845**) |
英文摘要 | Six soil samples collected from slopeland orchard were used as study materials. The saturated hydraulic conductivities of undisturbed and repacked column of these six soils were measured based on the Darcy's Law. The conductivities of combined double layers of these six soils were also measured and calculated. The results indicated that the saturated hydraulic conductivity vlaues of undisturbed soils were much larger than the repacked soils. The regression equation between undisturbed soil saturated hydraulic conductivity (Ku) and repacked soil saturated hydraulic conductivity (Kr) is as follows: Ku=2.931Kr-0.782f+2.21D-5.363 (R²=0.956**) where f is porosity, D is the ratio of geometric mean diameter and effective particle diameter. The relationship of measured and calculated double-layered soil saturated hydraulic conductivity for the Da-Keng experimental area is Km=100.089×0.947Kc (r²=0.845**) where Km is measured saturated hydraulic conductivity of double-layered soil, Kc is calculated saturated hydraulic conductivity of double-layered soil. |
本系統中英文摘要資訊取自各篇刊載內容。