...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Landslides >Mechanism for the rapid motion of the Qianjiangping landslide during reactivation by the first impoundment of the Three Gorges Dam reservoir, China
【24h】

Mechanism for the rapid motion of the Qianjiangping landslide during reactivation by the first impoundment of the Three Gorges Dam reservoir, China

机译：三峡大坝水库首次蓄水在恢复过程中潜江坪滑坡的快速运动机制

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The first impoundment of the Three Gorges Dam reservoir in China started from a water surface elevation of 95 m on June 1, 2003 and reached 135 m on June 15, 2003. Shortly after the water level reached 135 m, many slopes began to deform and some landslides occurred. The Qianjiangping landslide is the largest one; it occurred on the early morning of July 14, 2003 and caused great loss of lives and property. Field investigation revealed that, although failure occurred after the reservoir reached 135 m, the stability of the slope was already reduced by preexisting sheared bedding planes. To study the mechanism of the rapid motion of this reactivated landslide, two soil samples were taken from a yellow clay layer and a black silt layer in the sliding zone, respectively, and a series of ring shear tests were conducted on the samples. One series of ring shear tests simulates the creep deformation behavior, while the other series simulates different shear rates. Conclusions drawn from analysis of the ring shear tests indicate that the mechanism of the rapid motion of the reactivated landslide was caused by the rate effect of the black silt layer during the motion phase after the creep failure. The yellow clay layer did not play any important role in the rapid motion in the 2003 event.
机译：中国三峡大坝的第一座水库始于2003年6月1日的水面高程95 m，到2003年6月15日达到135 m。水位达到135 m后不久，许多斜坡开始变形和发生了一些山体滑坡。钱江坪滑坡是最大的滑坡。它发生在2003年7月14日凌晨，造成了重大生命和财产损失。现场调查表明，尽管在储层达到135 m后发生了破坏，但由于已经存在剪切的层理面，该斜坡的稳定性已经降低。为了研究这种活化滑坡的快速运动机理，分别从滑动区的黄色粘土层和黑色淤泥层中采集了两个土壤样品，并对这些样品进行了一系列的环剪试验。一个系列的环剪测试模拟了蠕变变形行为，而另一个系列模拟了不同的剪切速率。从环剪试验的分析得出的结论表明，重新活化的滑坡的快速运动机理是由蠕变破坏后运动阶段的黑色淤泥层的速率效应引起的。黄色粘土层在2003年赛事的快速运动中没有发挥任何重要作用。

著录项

  • 来源
    《Landslides》 |2008年第4期|379-386|共8页
  • 作者

    Fawu Wang; Yeming Zhang; Zhitao Huo; Xuanming Peng; Shimei Wang; Shintaro Yamasaki;

  • 作者单位

    Research Center on Landslides Disaster Prevention Research Institute Kyoto University Gokasho Uji Kyoto 611-0011 Japan;

    Yichang Center of the China Geological Survey Gangyao Road 37 Yichang 443003 China;

    Yichang Center of the China Geological Survey Gangyao Road 37 Yichang 443003 China;

    Yichang Center of the China Geological Survey Gangyao Road 37 Yichang 443003 China;

    Institute of Geological Hazards Mitigation China Three Gorges University No. 8 Daxue Road Yichang Hubei 443002 China;

    Division of Geo-hazards Disaster Prevention Research Institute Kyoto University Gokasho Uji Kyoto 611-0011 Japan;

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

    Landslide; Rapid motion; Ring shear tests; Clay; Silt; Water–soil interaction; Rate effect;

    机译：滑坡;快速运动;环剪试验;黏土;淤泥;水土相互作用;速率效应;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号