ISSN 1003-8035 CN 11-2852/P
    顾福计,钱龙,王梦洁,等. 太行山河北段“23•7”强降雨引发的地质灾害规律分析[J]. 中国地质灾害与防治学报,2024,35(2): 1-11. DOI: 10.16031/j.cnki.issn.1003-8035.202312027
    引用本文: 顾福计,钱龙,王梦洁,等. 太行山河北段“23•7”强降雨引发的地质灾害规律分析[J]. 中国地质灾害与防治学报,2024,35(2): 1-11. DOI: 10.16031/j.cnki.issn.1003-8035.202312027
    GU Fuji,QIAN Long,WANG Mengjie,et al. Analysis of geological hazards caused by the "23.7" heavy rainfall in the northern section of Taihang Mountain in Hebei province[J]. The Chinese Journal of Geological Hazard and Control,2024,35(2): 1-11. DOI: 10.16031/j.cnki.issn.1003-8035.202312027
    Citation: GU Fuji,QIAN Long,WANG Mengjie,et al. Analysis of geological hazards caused by the "23.7" heavy rainfall in the northern section of Taihang Mountain in Hebei province[J]. The Chinese Journal of Geological Hazard and Control,2024,35(2): 1-11. DOI: 10.16031/j.cnki.issn.1003-8035.202312027

    太行山河北段“23•7”强降雨引发的地质灾害规律分析

    Analysis of geological hazards caused by the "23.7" heavy rainfall in the northern section of Taihang Mountain in Hebei province

    • 摘要: 强降雨是引发地质灾害的主要因素。我国北方地区目前多侧重短时强降雨引发地质灾害方面的研究,对区域性极端降水条件下地质灾害特征规律方面研究尚存在不足。基于“23•7”强降雨引发的地质灾害样本分析,研究了太行山河北段地质灾害发生的规律特征。结果表明:(1)地质灾害呈现出多发、群发性态势,发生数量达历史新高,类型以崩塌、滑坡、泥石流为主,激发新的地质灾害明显增多;(2)地质灾害发生时空范围与强降雨区域高度吻合,太行山南段和北段呈现差异性分布;(3)泥石流造成的损失最大,坡面型泥石流明显多发,松散物覆盖型滑坡多发易发。研究结果可为极端降水条件下地质灾害防范提供参考。

       

      Abstract: Heavy rainfall is the main factor triggering geological disasters. In the northern region of China, most of the researches focus on the geologic disasters caused by short-term heavy rainfall, and the researches on the characteristics of geologic disasters under regional extreme precipitation conditions are still insufficient. Based on the sample analysis of geological disasters triggered by the "23•7" heavy rainfall, the regular characteristics of geological disasters in the Hebei section of the Taihang Mountains were studied. The results show that: (1) geologic hazards show the trend of multiple and group occurrence, and the number of occurrences reaches a new high in history, and the types of avalanches, landslides, and mudslides are the main ones, which stimulate new geologic hazards to increase significantly; (2) the spatial and temporal scales of occurrence of geologic hazards and the area of heavy rainfall are highly coincident with each other, and the south and north sections of the Taihang Mountains show a differentiated distribution; (3) mudslides cause the most damage, and slope-type mudslides are obviously more frequent, and the loose material-covered landslides are more frequent and easier to occur. cover type landslides are more frequent and prone to occur. The results of the study can provide a reference for the prevention of geologic disasters under extreme precipitation conditions.

       

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