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題名 | 植生對邊坡生態工法的穩定性評估=The Application of Plants to Slope Ecological Engineering Methods |
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作者 | 莊財福; 陳志勇; 洪耀明; 陳忠偉; | 書刊名 | 明道學術論壇 |
卷期 | 2:1 民95.07 |
頁次 | 頁91-107 |
分類號 | 441 |
關鍵詞 | 植生; 生態工法; 有限元素法; 邊坡穩定; Plant; Ecological engineering methods; Finite element method; Slope stability; |
語文 | 中文(Chinese) |
中文摘要 | 台灣地區地小人稠,山坡地而積更佔全島的四分之三,每逢颱風大雨來臨,常造成邊坡滑動及邊坡破壞等災害,造成國人生命財產的重大損失。也因此邊坡穩定問題一直是工程師相當關心的議題。生態工法目前在台灣已被大力推廣、並逐漸廣泛使用於國內邊坡穩定、水土保持等相關工程。以往土木工程之工程方法,對值物的使用並不重視。近年來則漸有採用植生工程或植生混合方法的趨勢。此種方法之優點不僅美化景觀,並兼具安全上的考量。然而,植生生態工法廣被質疑的部分,即其安全性的問題無法獲得有效的計算與評估。有鑑於此,本文採用有限元素法(Finite Element Method)配合莫爾庫倫理論(Mohr-coulomb theory)之組合律進行模擬分析,評估邊坡破壞與否,以了解植生對邊坡的穩定性效益。研究結果發現植生厚度及根系確實對於邊坡穩定性均有正面的幫助,顯示植生根系的強度及錨定至土層中的厚度,爲掌握植生邊坡工程行爲的重要因素。 |
英文摘要 | Taiwan is a very small island with a great value of population. The area of sidehill is about 3/4 of the whole island even more. Each time when the typhoon and heavy rain come, often cause the slide and the failure of slopes. Therefore, the slope stability question has usually drawn lot attentions of engineers. Currently, it is general accepted that the adoption of Ecological Engineering Methods is a wise idea. However, the safety of this method has been oppugned by many researchers. Many people thought that the construction made by traditional reinforced concrete is more reliable in resisting the great nature. Thus, this study tried to explain the safety of Ecological Engineering Methods by using the finite element method and the theory of the stability of slop. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。