山东国土资源2026，Vol.42Issue(4)：19-27,9.DOI:10.12128/j.issn.1672-6979.2026.04.003
基于降雨诱发的地质灾害链动态演进与风险传递机制研究
Study on Dynamic Evolution and Risk Transmission Mechanism of Geological Hazards Chain Induced by Rainfall
摘要
Abstract
In response to cascading effects and risk transmission mechanism of rainfall induced geological hazards,taking Yujiagou in Mufu town in Enshi city in Hubei province as a typical research area,based on data collection,analysis and ground investigation,9 landslide bodies have been identified as the initial sources of hazard chain.By using the limit equilibrium method and FLAC-3 D model,the stability coeffi-cient(Fs)of landslides under different rainfall intensities has been quantified.Transmission mechanism of landslide instability triggering debris flows has been revealled.By using RAMMS software,the trajectory and accumulation characteristics of debris flows have been simulated.Combining with analysis of valley terrain and material flux,a risk transfer model for three level chain of landslide debris flow barrier lake disasters has been constructed.Through practice of geological hazard chain risk analysis,the disaster process of geological hazard chain has been basically simulated.It can provide scientific basis for early warning and risk management of geological hazard chain in southwestern mountainous areas.关键词
地质灾害链/动态演进/风险传递/堰塞湖效应/湖北恩施Key words
Geological hazard chain/dynamic evolution/risk transmission/barrier lake effect/Enshi city in Hubei province分类
天文与地球科学引用本文复制引用
王戈,焦霞蓉,王勇瑞,陶峰..基于降雨诱发的地质灾害链动态演进与风险传递机制研究[J].山东国土资源,2026,42(4):19-27,9.基金项目
湖北省自然资源厅2021年实施的湖北省地质灾害综合防治体系建设调查评价项目 （）
