地工織物之功能應用於泥岩邊坡穩定性之探討

Summarized Considerations for Applying Geotextile to Stabilize Mudstone Slope

10.30140/SG.199412.0006

張達德(Ta-Teh Chang)；徐振能(Chen-Neng Hsu)；聶豫珍(Yu-Chen Nieh)

泥岩 ； 地工織物 ； 水力坡降比 ； 過濾／排水 ； mudstone ； geotextile ； gradient ratio filtration/drainage

地工技術

48期（1994 / 12 / 01）

71 - 82

繁體中文

泥岩邊坡開挖、棄方、填土或相關工程中，由於其吸水後軟化，進而降低其抗剪強度之特性，嚴重影響邊坡穩定性。因此，在探討泥岩邊坡問題時，柔性加勁土工法應可有效利用解決此問題。設計考量中，除了加勁的相關行為外，防止土壤顆粒流失與建立良好排水系統，亦為重要考因慮素。本丈針對歷年來國科會大型防災計畫之成果，以及相關之研究，綜合加勁應用之力學行為及過濾排水之要求，提出相關研究心得供工程界參考。

When cutting, embankment, and related construction in mudstone slope area, the stability problems causing by the erosion and softening behaviors of mudstone material has been bothered engineering for years. To solve these engineering problems, the flexible retaining structure, ”Geotextile-reinforced earth/slope”, is suggested to apply in the field. Besides reinforcing related properties, the requirements of filtration and drainage systems are also the important factors for design. This paper provides the summary of the results from series studies which where sponsored under National Science Council. The specification of the mechanical properties and the function of filtration/drainage for geotextile and material interface are properly suggested herein, for design consideration.