干碎屑流滑坡规模频率分布的研究

Magnitude frequency distribution of landslides is of significance for both theoretical and applied considerations. Specifically investigating the magnitude frequency distribution of a particular type of landslide is essential for making a breakthrough for the research of landslide magnitude frequency distribution. Dry debris flow landslides have unique magnitude forming processes because flow spreading and entrainment magnification of landslide materials are involved. Therefore, specifically investigating the magnitude frequency distribution of dry debris flow landslides is of great scientific necessity. However, currently investigations on the magnitude frequency distribution of dry debris flow landslides are far from adequacy. This project proposes to reveal the varying characteristics and forming mechanism of the magnitude frequency distribution of dry debris flow landslides, based on a large amount of data of dry debris flow landslides, and by probability distribution statistics and mechanical process modeling. This project focuses on the magnitude frequency distribution of dry debris flow landslides, aims to fill up the exiting deficiencies in relevant researches. This project is supposed to be able to contribute to the researches of landslide magnitude frequency distribution, and finally support the quantitative analysis of landslide risk and geomorphological processes.

滑坡规模频率分布的研究具有重要意义。针对特定类型滑坡的规模频率分布进行专门研究，是突破和完善滑坡规模频率分布研究的必然需求。干碎屑流滑坡的流动扩散和刮铲增量等效应使其规模具有独特的形成过程，因此对干碎屑流滑坡的规模频率分布进行专门研究具有科学必要性。然而，目前对干碎屑流滑坡规模频率分布的研究存在不足。本项目拟基于大量干碎屑流滑坡实例数据，主要通过概率分布统计分析和力学模型模拟分析等方法，认识干碎屑流滑坡规模频率分布的变化规律、揭示其形成机理。本项目以干碎屑流滑坡规模频率分布为研究对象展开系统研究，以期填补相关研究不足、为滑坡规模频率分布的研究做出基础贡献，进一步可为滑坡风险定量评价和地貌过程定量分析等提供科学支撑。

滑坡规模频率分布的研究具有重要意义。针对特定类型滑坡的规模频率分布进行专门研究，是突破和完善滑坡规模频率分布研究的必然需求。滑坡碎屑流（干碎屑流滑坡）具有独特的形成过程；因此，对滑坡碎屑流的规模频率分布进行专门研究具有科学必要性。本项目围绕研究目标，在以下几个方面取得了进展和成果：1）构建了金沙江上游流域和中亚Kokomeren流域滑坡碎屑流实例数据集；2）基于以上实例数据集，初步分析了滑坡碎屑流规模频率分布的变化规律及其影响因素；3）在滑坡灾害评估模型方面，构建了考虑滑坡大小的滑坡易发性评估模型；4）利用新进的SfM、LiDAR和InSAR等技术，在地质灾害关键过程监测方面也取得一定进展；5）共发表论文11篇，包括SCI论文8篇、中文论文3篇。其中，以项目负责人为第一作者发表论文6篇，第一和第二标注论文8篇。