物理模型試驗應用於順向坡板岩變形特性之研究

本文主要探討臺灣板岩順向坡變形特性，藉由現場調查、地形分析與物理模型試驗說明板岩不同條件下之重力變形特性，並推估板岩變形過程與潛在崩壞機制。結果顯示，坡趾侵蝕透空與降雨入滲機制為板岩變形之關鍵，其將造成板岩材料強度弱化加速發生變形。此外，板岩變形初始發生於崖頂張力區，坡體將沿著高角度葉理滑移，並於侵蝕弱化帶附近形成剪切破壞或複合型破壞。而變形範圍內具有相當多葉理張開之現象，其將有助於地表水與地下水滲入，促使板岩變形區加速變形至崩壞。

關鍵字

板岩順向坡；物理模型試驗；變形過程；潛在崩壞機制

並列摘要

This paper focuses on characterizing the deformation of consequent slate slopes in Taiwan. Onsite surveys, terrain analysis, and a physical model test are used to describe the characteristics of gravity-driven deformation under various conditions and identify the process of slate deformation as well as potential failure mechanisms. Slate deformation is shown to begin in the tension zone at cliff tops, wherein the slope body slips along the highly inclined foliation, contributing to shear failure or composite failure near the eroded zone of weakness. The phenomenon of foliation opening is widespread within the area of deformation, enabling surface water and groundwater to seep in, thereby accelerating deformation and failure in the slate deformation zone.

並列關鍵字

Consequent slate slopes ； physical modeling ； the process of slate deformation ； potential failure mechanism

被引用紀錄

吳俊融（2015）。修正平滑節理模式於節理岩坡之破壞分析〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2015.01736

曾煒傑（2015）。以分離元素法與離心模型模擬在不同尺度下順向坡滑動行為〔碩士論文，國立中央大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0031-0412201512094414

延伸閱讀

林建杰、羅佳明（2016）。物理模型應用於逆向坡變形與崩壞過程與崩壞之初步研究。土木水利，43(2)，5-10。https://doi.org/10.6653/MoCICHE.201604_43(2).0002
鄭清江、游友友、林正陽（2016）。坡地傾斜管變位型態判釋及模擬試驗。三聯技術，(100)，10-23。https://www.airitilibrary.com/Article/Detail?DocID=P20140320001-201606-201606080004-201606080004-10-23
紀雲曜、李雅芬（2012）。岩層參數變異特性對邊坡楔型破壞機率影響之研究。中國土木水利工程學刊，24(2)，111-119。https://doi.org/10.6652/JoCICHE.201206_24(2).0002
Jr, G. E. C., xiang, C. Q., sen, S. J., Liu, H., & Barvor, Y. J. (2016). Effects of Weak Layer Angle and Thickness on the Stability of Rock Slopes. International Journal of Mining and Geo-Engineering, 50(1), 97-110. https://www.airitilibrary.com/Article/Detail?DocID=P20160902003-201606-201609020043-201609020043-97-110
Zhou, H., Zheng, G., Yang, X., Diao, Y., Gong, L., & Cheng, X. (2016). Displacement of Pile-Reinforced Slopes with a Weak Layer Subjected to Seismic Loads. Mathematical Problems in Engineering, 2016(), 642-651. https://doi.org/10.1155/2016/1527659

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物理模型試驗應用於順向坡板岩變形特性之研究

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