...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Bulletin of engineering geology and the environment >Quantitative hazard analysis and mitigation measures of rockfall in a high-frequency rockfall region
【24h】

Quantitative hazard analysis and mitigation measures of rockfall in a high-frequency rockfall region

机译：高频岩石区岩石的定量危害分析与缓解措施

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 runout behavior of rockfall is mostly determined by the terrain and its mechanical parameters. The two factors can be significantly changed in a short period of time due to rockfall deposits in high-frequency rockfall regions. In this paper, a self-evolution process of rockfall from the Hongshiyan post-earthquake rock slope is observed and analyzed. This self-evolution process of the rockfall is the consequence of the re-occurrences of a large number of rockfall events in a short period of time, which lead to an increase in the elevation, slope angle, and hardness of the terrain, and aggravate further the severity of subsequent rockfall disasters. In order to analyze the self-evolution process, numerical simulations based on a probabilistic model were carried out on eight different conditions to analyze the interaction between the rockfall and different ground surface. The corresponding rockfall hazard was then analyzed according to a quantitative assessment method. The statistics of the average class (AC) and mitigation index (MI) of the rockfall were proposed to quantify the rockfall characteristics in different conditions. The effectiveness of structural and non-structural rockfall protection measures in high-frequency rockfall areas was discussed. An interim non-structural measure that addresses the self-evolution of rockfall is proposed to improve the mitigation efficiency, which can also reduce the maintenance cost.
机译：岩石的跳动行为主要由地形和其机械参数决定。由于高频岩石区的岩石沉积物，在短时间内，这两个因素可以显着改变。本文观察并分析了洪夏山后地震岩石斜坡岩土自进展过程。这种岩石的这种自我演化过程是在短时间内重新发生大量岩石事件的结果，这导致地形的高度，倾斜角和硬度增加，并加剧进一步的落地灾害的严重程度。为了分析自我进化过程，基于概率模型的数值模拟在八种不同的条件下进行，以分析岩石和不同地面之间的相互作用。然后根据定量评估方法分析相应的岩石危害。建议岩石平均阶级（AC）和缓解指数（MI）的统计数据量化在不同条件下的岩石特征。讨论了在高频岩石地区结构和非结构岩土保护措施的有效性。提出了一种解决岩石自我演化的临时非结构措施，以提高缓解效率，这也可以降低维护成本。

著录项

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