• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment >Comparison of different techniques to analyse the mobility of debris flows during hazard assessment-Case study in La Comella catchment, Andorra
【24h】

Comparison of different techniques to analyse the mobility of debris flows during hazard assessment-Case study in La Comella catchment, Andorra

机译：在危险性评估过程中分析泥石流活动性的不同技术的比较-安道尔拉科梅拉流域的案例研究

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

There are many different techniques to estimate the mobility of future debris flows during the runout analysis of a hazard assessment. We compared the usefulness and efficiency of empirical, analytical, probabilistic and numerical methods in the torrent catchment of La Comella, Principality of Andorra. Special attention was given to the results obtained on the densely urbanised debris fan, where the hazard assessment was of extraordinary interest for the urban planning. The comparison of the different runout prediction methods showed that only numerical modelling can provide debris-flow intensity, which is necessary information to determine hazard degree. Other techniques such as empirical relationships can only estimate runout distance directly, but not intensity. However, these relationships may supply preliminary hazard maps with much less effort. The hazard maps created by two-dimensional techniques showed the strong influence of the topographic quality of the digital elevation model. That's why the realization of a geomorphologic study is strongly recommended, in particular on the fan.
机译：在危害评估的偏差分析过程中，有许多不同的技术可以估算未来泥石流的流动性。我们在安道尔公国拉科梅拉的洪流地区比较了经验，分析，概率和数值方法的有效性和效率。特别关注了在密集城市化的碎片风机上获得的结果，在该结果中，危害评估对于城市规划特别重要。不同跳动预测方法的比较表明，只有数值模型才能提供泥石流强度，这是确定危险程度的必要信息。其他技术（例如经验关系式）只能直接估算跳动距离，而不能估算强度。但是，这些关系可以用较少的精力提供初步的危害图。通过二维技术创建的危害图显示了数字高程模型的地形质量的强大影响。这就是为什么强烈建议进行地貌研究的原因，尤其是在风扇上。

著录项

  • 来源
  • 会议地点 Chengdu(CN)
  • 作者

    M.H(u)rlimann; rnV Medina; rnA Bateman; rnR. Copons; rnJ. Altimir;

  • 作者单位

    M.H(u)rlimann @Department of Geotechnical Engineering and Geosciences, Technical University of Catalonia (UPC),Barcelona, Spain--V Medina@Sediment Transport Research Group, Department of Engineering Hydraulic, Marine and Environmental Engineering, Technical University of Catalonia UPC, Barcelona, SpainR. Copons,J. AltimirEuroconsult Andorra S.A., Andorra la Vella, Andorra--A Bateman@Sediment Transport Research Group, Department of Engineering Hydraulic, Marine and Environmental Engineering, Technical University of Catalonia UPC, Barcelona, SpainR. Copons,J. AltimirEuroconsult Andorra S.A., Andorra la Vella, Andorra--R. Copons@Euroconsult Andorra S.A., Andorra la Vella, Andorra--J. Altimir@Euroconsult Andorra S.A., Andorra la Vella, Andorra--;

  • 会议组织
  • 原文格式 PDF
  • 正文语种
  • 中图分类 泥石流;
  • 关键词

    mobility, hazard map, numerical modelling, empirical modelling, Andorra;

    机译：流动性，危害图，数值建模，经验建模，安道尔;

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