强降雨条件下泥石流起爆概率评价方法研究

Q4 Environmental Science
Rikiya Kobashi, Masato Kita, T. Uchida, Y. Kawahara
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引用次数: 2

摘要

在被称为“2018年7月暴雨事件”的极端气候事件中,日本西部地区长期和广泛的强降雨造成了几次泥石流,导致沉积物流入河流,造成沉积物洪水淹没的进一步破坏。对于现有的滑坡预警信息,建立考虑单个坡面降雨量和地形地质信息的预报方法十分重要。泥石流发生概率的估计和定量风险评估一直是具有挑战性的问题。为了解决这一问题,本文利用高空间分辨率的XRAIN降雨数据和强降雨事件中边坡破坏部位的特征进行了分析。本文还讨论了降雨指数𝑅’对2018年7月强长期降水强降雨的可靠性,不同于以往的灾害,如2014年8月和1999年6月的强短期降水。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
STUDY ON AN EVALUATION METHOD OF INITIATION PROBABILITY OF DEBRIS FLOWS DURING HEAVY RAINFALL
In an extreme climate event named “the Heavy Rain Event of July 2018,” prolonged and widespread heavy rainfall in western Japan caused several debris flows, which led the sediment to flow into rivers, causing further damage from sediment-flood inundation. For the existing landslide alert information, it is important to establish prediction methods that account for the amount of rainfall on individual mountain slopes and the topographic and geological information. The estimation of the probability of debris flow initiation and quantitative risk assessment have been challenging issues. In order to solve this problem, in this paper, the rainfall data of XRAIN with high spatial resolution and the features of the slope failure sites were examined during heavy rainfall events. This paper also discussed the reliability of rainfall index 𝑅 ' to the heavy rainfall with strong long-term precipitation in July 2018, which is different from previous disasters due to the heavy rainfall with strong short-term precipitation, such as those in August 2014 and June 1999.
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来源期刊
Journal of Japan Society of Civil Engineers
Journal of Japan Society of Civil Engineers Environmental Science-Environmental Engineering
CiteScore
0.60
自引率
0.00%
发文量
34
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