...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Natural Hazards >Rainfall thresholds for the initiation of landslide at Lanta Khola in north Sikkim, India.
【24h】

Rainfall thresholds for the initiation of landslide at Lanta Khola in north Sikkim, India.

机译：印度锡金北部兰塔霍拉的滑坡开始降雨阈值。

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

In the Indian Himalaya, a 15 km stretch of the North Sikkim Highway that is exceptionally susceptible to landsliding is characterized by fine-grained, low permeability debris material. Lanta Khola is one of the major debris slides in this stretch and is active every year during the monsoons. Although the relationship between rainfall and landsliding in the area is obvious, there is no previous study of precipitation thresholds for landslide initiation. Review of available rainfall and landslide activity data for the area between 1998 and 2006 suggests that sliding cannot be modeled by typical exponential relationships between cumulative rainfall (E) and rainfall duration (D). An alternative rainfall threshold has been proposed that predicts sliding if normalized cumulative rainfall for more than 15 days exceeds 250 mm. It is suggested that when this cumulative rainfall threshold is exceeded, the debris zone in the affected stretch becomes saturated and fails, causing landsliding.
机译：在印度喜马拉雅山上，北部锡金高速公路长达15公里的路段非常容易滑坡，其特征是细粒，低渗透性的碎屑材料。兰塔·霍拉（Lanta Khola）是这片土地上的主要碎片滑坡，每年的季风期间都很活跃。尽管该地区降雨与滑坡之间的关系很明显，但以前没有关于滑坡引发降雨阈值的研究。对1998年至2006年该地区可用的降雨和滑坡活动数据的回顾表明，不能用累积降雨（ E ）和降雨持续时间（ D ）之间的典型指数关系来模拟滑坡。 ）。已经提出了替代降雨阈值，如果超过15天的标准化累积降雨超过250毫米，则可以预测滑动。建议当超过此累积降雨阈值时，受影响范围内的碎屑区将饱和并破裂，从而导致滑坡。

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