| 水库滑坡涌浪风险研究现状和灾害链风险管控实践 |
| |
| 引用本文： | 殷坤龙,张宇,汪洋.水库滑坡涌浪风险研究现状和灾害链风险管控实践[J].地质科技通报,2022,41(2):1-12. |
| |
| 作者姓名： | 殷坤龙 张宇 汪洋 |
| |
| 基金项目： | 国家自然科学基金项目（42077277） |
| |
| 摘 要： | 滑坡作为水库库区主要地质灾害类型之一,其风险研究一直是近年来的研究热点。水库滑坡涌浪的产生使滑坡灾害的影响范围由滑坡源本身扩散到上下游数千米,极大地扩大了滑坡风险的承灾体类型与数量以及灾害损失程度。因涉及交叉学科领域,滑坡涌浪风险评估是滑坡风险灾害链评价的难点与前沿课题。本文综合了前人近几十年来的研究成果,首先从危险性、易损性以及风险3个方面出发,对国内外的滑坡涌浪风险研究现状和常用的研究方法进行了概述,并对重点代表性研究成果进行了述评分析,针对滑坡涌浪风险研究方面的新进展进行了介绍,包括考虑实际河道地形复杂性的试验研究、聚焦于滑坡-水体相互作用机制的多种数值模拟方法耦合研究,以及基于多种承灾体类型的易损性评价体系等。然后对近年来三峡库区发生过的多起滑坡涌浪风险管控实例的过程与后果进行了详细的阐述。最后基于多年的研究经验提出了滑坡涌浪灾害链风险研究的新方向和新思路,即涌浪风险应与滑坡风险评价体系相互融合,并沿着定量化、规范化、精细化的方向发展。
|
| 关 键 词： | 滑坡涌浪 灾害链 危险性 易损性 风险管控 |
| 收稿时间： | 2022-02-08 |
A review of landslide-generated waves risk and practice of management of hazard chain risk from reservoir landslide |
| |
| Abstract: | As one of the major types of geological hazards in reservoir areas, the risk analysis of landslides has been a top research topic recently. Landslide-generated waves extend the influence area from the landslide source itself to several kilometers upstream and downstream and greatly expand the type and number of elements and disaster damage. The risk evaluation of landslide generated waves is considered to be a difficult component in the evaluation of landslide risk hazard chains, as involving the intersection of different areas. Firstly, the previous research results in recent decades were synthesized from hazard, vulnerability and risk, the current situation of landslide generated waves risk research and common research methods worldwide were outlined, and the key representative research results were reviewed and analyzed. New progress was introduced, which includes experimental studies considering the complexity of actual river topography, coupled numerical simulation methods focusing on landslide-water interaction mechanisms, and a vulnerability assessment system based on multiple hazard-bearing body types. Secondly, the process and consequences of a number of landslide generated waves risk management cases that have occurred in the Three Gorges Reservoir Area in recent years were described in detail. Finally, according to the author's many years of research experience, new directions and ideas were proposed for the study of landslide-landslide generated waves hazard chain risks, and suggestions were given that surge risk and landslide risk evaluation systems should be merged with each other and developed along the direction of quantification, standardization and refinement. |
| |
| Keywords: | |
|
| 点击此处可从《地质科技通报》浏览原始摘要信息 |
| 点击此处可从《地质科技通报》下载免费的PDF全文 |
|
