滑坡變形破壞行為物理模擬研究

董秀軍

摘 要：不同類型的滑坡具有不同的變形破壞行為，同一斜坡在不同受力條件下也可能表現出不同的變形破壞行為。為了能在室內實際觀測到斜坡在不同受力狀態下的變形破壞行為，設計制作了可以調整角度的模型試驗框架，自主研發了模型位移測量裝置，通過大量測試最終選擇成都粘土作為滑帶土材料，開展了近一年的滑坡變形破壞行為的物理模擬試驗研究，共完成7種傾角14組模擬試驗，得到了不同受力條件下的滑坡變形-時間線簇，進一步揭示了滑坡變形-時間曲線的特征，為斜坡變形-時間曲線類型歸納提供了依據。

關鍵詞：滑坡 滑帶 物理模擬 變形—時間曲線

Abstract： Different types of landslide deformation and failure behavior is different， the same slope may also exhibit different deformation and failure behavior under different stress conditions. In order to observe slope deformation and failure behavior in different stress condition， a model test framework is designed which angle can be adjusted， and we independent research and development of the model displacement measuring device. We choose Chengdu clay as the slide zone soil materials through a lot of tests， the development of the study on the physical simulation test of the slope deformation and failure of nearly a year， completed 7 kinds angle and 14 groups simulation test. Acquired deformation time curves under different stress conditions by physical simulation. The datas further reveals the characteristics of the landslide deformation-time curve， provides the basis for induction of the curve types of slope deformation-time.

Key Words： Landslide； Sliding zone； Physical simulation； Deformation-time curve

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