沟道侵蚀型泥石流起动临界条件研究进展

Progress in study of mechanism and critical condition for initiation of debris flows due to bed failure

沟道侵蚀型泥石流是泥石流的主要类型之一,研究其起动机理和起动临界条件有助于泥石流治理和预警预报。虽然多年来对沟道侵蚀型泥石流的起动研究有了一些成果,但目前对其起动机理的认识还存在局限,现有起动临界条件计算方法也不成熟,在很大程度上制约了防灾减灾的进展。为深入研究沟道侵蚀型泥石流的形成机理和起动临界条件计算方法,回顾了国内外学者在相关领域的研究成果,系统总结了沟道侵蚀型泥石流起动研究现状,并对沟道侵蚀型泥石流未来研究方向做出展望。

The debris flow due to bed failure is one of the main types of debris flows, and the study of the mechanism and critical condition for initiation of debris flows is beneficial to prevention and early warning of debris flows. Although some progresses have been made on the subject in recent years, the development of ef- fective measures for disaster prevention and early warning has been hampered by the lack of understanding of basic mechanism and suitable methods for critical condition of debris flows initiation. Recent progress in the study of mechanism and critical condition for initiation of debris flows due to bed failure is systemacally re- viewed. The current state of research on mechanism and critical condition for initiation of debris flows due to bed failure is systemacally summarized. Future prospects of research on the subject are put forward at last.