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| 題 名 | 以分離元素法探討邊坡性質對臨界位移量的影響=Investigation of the Influence of Slop Properties on Critical Displacement Using the Discrete Element Method |
|---|---|
| 作 者 | 沈羿丞; 張光宗; | 書刊名 | 水土保持學報 |
| 卷 期 | 55:1 2025.06[民114.06] |
| 頁 次 | 頁3473-3484 |
| 分類號 | 434.273 |
| 關鍵詞 | 有限元素法; 分離元素法; 崩塌預警; 臨界位移; Finite element method; Discrete element method; Landslide early warning; Critical displacement; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 對於山坡地的安全,建立邊坡崩塌預警機制顯得格外重要;本研究透過數值模擬方法探 討大規模崩塌的力學行為與潛在預警指標,重點分析不同邊坡性質對穩定性之影響。依據現 地資料,本研究建立光華地區三維邊坡數值模型,並結合有限元素法 PLAXIS 3D 與分離元素 法 EDEM,模擬邊坡變形與破壞發展歷程。透過折減 EDEM 微觀參數至邊坡崩塌,來探討不 同邊坡性質對臨界位移量之影響。模擬結果顯示,深度較深之滑動面的臨界位移大於深度較 淺之滑動面,且若於下邊坡設定強度較高的岩層,會提高臨界位移量,顯示邊坡性質為影響 崩塌潛勢之關鍵因素。此研究成果可提供未來建立邊坡崩塌預警系統之參考基礎。 |
| 英文摘要 | For the safety of hillside areas, establishing an early warning mechanism for slope failure is particularly important. This study investigates the mechanical behavior and potential early warning indicators of large-scale landslides through numerical simulation, focusing on how different slope properties affect stability. Based on field data, a 3D slope model of the Guanghua area was developed, integrating the finite element method (PLAXIS 3D) and the discrete element method (EDEM) to simulate the deformation and failure processes of the slope. By reducing the microscale parameters in EDEM to trigger slope failure, the influence of different slope properties on the critical displacement was analyzed. Simulation results show that slopes with deeper slip surfaces exhibit larger critical displacements compared to those with shallower slip surfaces. Additionally, setting stronger rock layers in the lower slope area increases the critical displacement, indicating that slope properties are key factors influencing collapse potential. These findings can serve as a reference for developing future slope failure early warning systems. |
本系統中英文摘要資訊取自各篇刊載內容。