水位变化对三峡库区堆积层滑坡稳定性的影响
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摘要
库水位的长期周期性变化势必影响三峡库区内崩滑体及库岸的稳定性,特别是堆积层滑坡的稳定性对库水位的周期性变化尤为敏感。本文针对三峡库区内松散堆积层滑坡的特征和堆积层滑坡在库水位变化条件下的水压力问题,建立了松散堆积层滑坡的渗流模型,并以三峡库区某堆积层滑坡为例,对库水位变化条件下该滑坡渗流场与稳定性进行了模拟和分析,以为该类堆积层滑坡的稳定性评价提供依据。
        The long-term periodic fluctuation of reservoir water table will definitely influence the stability of landslides and banks within the reservoir,especially for those colluvial landslides which might be much more sensitive to the periodic changes of groundwater table.A seepage model is developed based on the characteristics of unconsolidated colluvial landslide and hydraulic pressure variation with the fluctuation of reservoir water table.The seepage field and stability of landslide are then analyzed according to the actual fluctuation of reservoir water table.The method and related results can be referred and applied to similar conditions.
引文
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