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首页> 外文期刊>Environmental earth sciences >Impact of reservoir impoundment-caused groundwater level changes on regional slope stability: a case study in the Loess Plateau of Western China
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Impact of reservoir impoundment-caused groundwater level changes on regional slope stability: a case study in the Loess Plateau of Western China

机译：水库蓄水引起的地下水位变化对区域边坡稳定性的影响-以中国西部黄土高原为例

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摘要

Due to its impact on regional groundwater levels, the impoundment of a reservoir is an important consideration for assessing the stability of surrounding slopes. This study presents a method for risk assessment and control of landslides in regions where groundwater levels can be affected by reservoir water levels. The method is illustrated with a case study of the Hongzhuang reservoir in Yanan city, northern Shaanxi province, China. A groundwater numerical model was developed using MODFLOW and the groundwater flow fields were calculated for different reservoir water levels. Safety factors were then obtained and the slope stability was analyzed. Moreover, a probabilistic slope analysis was performed by Monte-Carlo simulation to evaluate the reliability of slope stability and the probability of slope failure. Finally, a reasonable reservoir water level was determined according to the acceptable risk level, and a comprehensive risk mitigation method was proposed considering water level control, relocation, and drainage measures.
机译：由于其对区域地下水位的影响，水库蓄水是评估周围斜坡稳定性的重要考虑因素。这项研究提出了一种在地下水水位可能受到水库水位影响的地区进行滑坡风险评估和控制的方法。以陕西北部延安市洪庄水库为例进行了实例说明。使用MODFLOW建立了地下水数值模型，并计算了不同水库水位的地下水流场。然后获得安全系数并分析边坡稳定性。此外，通过蒙特卡洛模拟进行了概率边坡分析，以评估边坡稳定性的可靠性和边坡破坏的可能性。最后，根据可接受的风险水平确定了合理的水库水位，并考虑了水位控制，迁移和排水措施，提出了一种综合的风险缓解方法。

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  • 来源
    《Environmental earth sciences》 |2012年第6期|p.1715-1725|共11页
  • 作者

    Maosheng Zhang; Ying Dong; Pingping Sun;

  • 作者单位

    Xi'an Center of Geological Survey, China Geological Survey, No. 438, East Youyi Road, Xi'an 710054, Shaanxi, People's Republic of China;

    Xi'an Center of Geological Survey, China Geological Survey, No. 438, East Youyi Road, Xi'an 710054, Shaanxi, People's Republic of China;

    Xi'an Center of Geological Survey, China Geological Survey, No. 438, East Youyi Road, Xi'an 710054, Shaanxi, People's Republic of China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    reservoir water level; groundwater; landslides; stability; reliability; risk;

    机译：水库水位;地下水;滑坡稳定性;可靠性;风险;

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