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库水位涨落条件下滑坡地下水渗流场动态特征

夏敏,  任光明,  马鑫磊,  董清志,  黄帮芝,  孙仁先

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文章导航 > 西南交通大学学报  > 2014 >  27(3): 399-405.
夏敏, 任光明, 马鑫磊, 董清志, 黄帮芝, 孙仁先. 库水位涨落条件下滑坡地下水渗流场动态特征[J]. 西南交通大学学报, 2014, 27(3): 399-405. doi: 10.3969/j.issn.0258-2724.2014.03.005
引用本文: 夏敏, 任光明, 马鑫磊, 董清志, 黄帮芝, 孙仁先. 库水位涨落条件下滑坡地下水渗流场动态特征[J]. 西南交通大学学报, 2014, 27(3): 399-405. doi: 10.3969/j.issn.0258-2724.2014.03.005
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XIA Min, REN Guangming, MA Xinlei, DONG Qingzhi, HUANG Bangzhi, SUN Renxian. Dynamic Responses of Groundwater Seepage of Landslide Influenced by Fluctuation of Reservoir Water Level[J]. Journal of Southwest Jiaotong University, 2014, 27(3): 399-405. doi: 10.3969/j.issn.0258-2724.2014.03.005
Citation: XIA Min, REN Guangming, MA Xinlei, DONG Qingzhi, HUANG Bangzhi, SUN Renxian. Dynamic Responses of Groundwater Seepage of Landslide Influenced by Fluctuation of Reservoir Water Level[J]. Journal of Southwest Jiaotong University, 2014, 27(3): 399-405. doi: 10.3969/j.issn.0258-2724.2014.03.005
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库水位涨落条件下滑坡地下水渗流场动态特征

doi: 10.3969/j.issn.0258-2724.2014.03.005
基金项目: 

国家自然科学基金资助项目（41072229）

Dynamic Responses of Groundwater Seepage of Landslide Influenced by Fluctuation of Reservoir Water Level

    摘要
  • 摘要: 为探讨库水位升降对滑坡地下水的动态作用机理，以三峡库区石榴树包滑坡为例，采用有限元法，模拟了5种工况下库水位升降速率及不同渗透系数下滑坡体内地下水的暂态渗流场特征.研究结果表明：滑坡体内地下水渗流浸润线受水位升降速率与坡体渗透系数的共同影响；库水位上升条件下，当滑体渗透系数大于1×10-4 m/s，且水位上升速率小于渗透系数时，滑坡体表现为蓄水同步型.库水位下降条件下，当滑体渗透系数小于1×10-6 m/s时，库水位发生骤降；渗透系数介于1×10-4~1×10-5 m/s之间时，库水位表现为缓降；渗透系数大于1×10-4 m/s时，渗流浸润线与库水位保持同步下降.

     

    Abstract: In order to investigate the impact of reservoir water level fluctuation on the dynamic responses of groundwater seepage of landslide. The transient seepage of Shiliushubao landslide as a research object was discussed under five different water level fluctuation rates and different seepage coefficient magnitudes. The research results show that the groundwater seepage line is affected by water level fluctuation rate and permeability coefficient. Under the condition of the rise of water level, landslide appears generally as a synchronous impoundment type when permeability coefficient is above 1×10-4 m/s and greater than the water level rising rate. Under the condition of the descend of water level, seepage line will be characterized by a sudden drawdown when the permeability coefficient is less than 1×10-6 m/s; reservoir water level will drop slowly if the coefficient is from 1×10-4 to 1×10-5 m/s; and seepage line and reservoir water level will descend synchronously as the coefficient exceeds 1×10-4 m/s.

     

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出版历程
  • 收稿日期:  2013-03-12
  • 刊出日期:  2014-06-25

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