查詢結果分析
相關文獻
- The Subzoning Delineations Within a Colluvium-subsceptibility Area as Induced by the Model of Rainfall Erosion on a Mudstone Slope
- 臺灣地區土壤沖蝕預測公式之回顧、研究與展望
- 田間人工降雨模擬器之研製及應用
- 應用同步衛星資料估算臺灣地區對流降雨
- 石門水庫集水區降雨量時間分布特性之研究
- 水筒模式與降雨一逕流模擬
- 以類神經網絡模式分析颱風降雨與半分布並聯式水庫概念模式模擬颱洪歷線之串聯應用
- 利用定量模型推估花蓮縣銅門村土石流發生處之尖峰逕流量
- 蓮華池地區降雨-延時-頻率關係及不同降雨延時之設計雨型歷線
- 作物遭受降雨之生理反應
頁籤選單縮合
題 名 | The Subzoning Delineations Within a Colluvium-subsceptibility Area as Induced by the Model of Rainfall Erosion on a Mudstone Slope=由降雨沖蝕模式推導泥岩坡洗堆積物之潛感區分界 |
---|---|
作 者 | 簡錦樹; 李志成; | 書刊名 | 中國地質學會會刊 |
卷 期 | 36:3 1993.07[民82.07] |
頁 次 | 頁331-350 |
分類號 | 354.5 |
關鍵詞 | 沖蝕模式; 泥岩坡洗堆積物; 降雨; 潛感區分界; |
語 文 | 英文(English) |
中文摘要 | 泥岩惡地形坡受降雨沖蝕可能坡洗堆積於坡下,所堆積範 圍謂之崩積物潛感區(colluvium-susceptibility Area)。本研究考慮 (1)雨滴淚濺分離,(2)雨滴激濺搬運,(3)地表逕流分離,(4) 地表逕流搬運等四個因素建立斜坡沖蝕--堆積數學模式,並由 人工降雨沖蝕實驗結果作為此模式修正之依據。文中並以二仁 溪上游月世界及古亭橋之泥岩坡為例,將所採之泥岩土樣置於 土槽內塑成如現場之斜坡後施以人工降雨沖蝕實驗,所得結果 與沖蝕--堆積數學模式及現場坡形比較,以推估泥岩坡之沖蝕 深度與堆積於坡下之厚度及範圍。在此範圍之崩積物潛感區又 分為高中低等三個潛感區,其定義如下: (1)高度潛感區:150mm/hr的降雨強度(延時30分鐘、迴歸週期 25年)作用下距坡址之堆積距離。 (2)低度潛感區:170mm/hr的降雨強度(延時30分鐘、迴歸週期 100年)作用下距坡址之堆積距離。 (3)高度潛感區:介於高度與低度潛感區之間。 依上述定義,推估在月世界及古亭橋兩實例的高中低等三 個潛感區分別為距坡址0-1.2m,1.2-2.4m,>2.4m以及0-1.9 m,1.9-3.1m,>3.1m。 |
英文摘要 | The area of the slopewashed deposits at the slope base resulting from the mudstone slope in the badland terrain can be called a colluvium-susceptibility area. The mathematical model of this research takes four factors into account in establishing an erosion-deposition model. These are: (1) detachment by raindrop splash, (2) transport by raindrop splash, (3)detachment by runoff, and (4)transport by runoff. the computed results from the model were modified by those of the laboratory rainfall erosion tests with a rainfall simulator. The mudstone samples taken from two example sites, the Moon World and the Guting Bridge, in the upper Erhjen River valley were placed in a soil tank an dthen the slopes were established equivalent to the ones in the field. The laboratory rainfall erosion tests were performed on the slopes. The results were compared with those from the mathematical erosion-deposition model and the slopes in the field. thus the depth of erosion along with the area and the depth of the slope- washed deposits could be estimated. The subzoning delineations within the area of the slopewashed deposits (or colluvium-susceptibility area) were defined based on the following: (1)High-susceptibility area:the depositional distance from the slope toe at the rainfall intensity of 150 mm/hr (30-minute time lag and 25-year return period). (2)Low-susceptibility area: the depositional distance form the slope toe at the rainfall intensity of 170 mm/hr (30-minute time lag and 100-year return period). (3)Medium-susceptibility area:in between the high-and low-susceptibility areas. According to the above-mentioned definition, the predicted high-, medium-, and low-susceptibility areas as applied to the two cases, the Moon World and the Guting bridge, are 0-1.2m, 1.2-2.4m, 2.4m up 0-1.9m, 1.9-3.1m, 3.1m up, respectively. |
本系統中英文摘要資訊取自各篇刊載內容。