三峡库区万州至巫山段城镇地质灾害调查进展

doi:10.19388/j.zgdzdc.2021.01.11

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Abstract Three Gorges Reservoir, as the main area of the National 13th Five-Year Plan for the Prevention and Control of Geological Disasters, is faced with outstanding problems of geological disasters, especially the area from Wanzhou to Wushan, which is a concentrated development area of geological disasters, with more than five thousand geological disasters spots. Taking background checking, risks evaluating and forecast researching as the main line, the authors have obtained some new understanding about the mechanism, background conditions of regional geological disasters and geological disaster risk assessment in urban area, through the project work in 2019. Firstly, the background conditions of geological disasters were summarized from geological material characteristics, occurrence conditions and influencing factors. Secondly, the formation and evolution mechanism of geological disasters was identified from geological deposition history, landform evolution and micro-landform transformation. Thirdly, the hazard-affected body were automatically extracted through the combination of optical remote sensing and low-altitude aerial photography of UAV. Fourthly, the geological disaster risk assessment method based on slope units was formed, and the geological disaster risk assessment of Dazhou town in Three Gorges Reservoir area was completed. These results play an exemplary role in supporting and serving local disaster prevention and control, and guiding geological disaster risk assessment.

Key words： progress of geological hazards survey early recognition risk assessment Three Gorges Reservoir

Received: 29 May 2020

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	Articles by authors
	YANG Xiuyuan
	FU Jie
	HAN Xudong
	ZHANG Chao
	PAN Shuhua
	LI Gang
	GUO Yingping
	PAN Jianyong

Cite this article:

YANG Xiuyuan,FU Jie,HAN Xudong, et al. Progress of geological hazards survey in the urban area from Wanzhou to Wushan in the Three Gorges Reservoir[J]. , 2021, 8(1): 97-107.

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http://journal25.magtechjournal.com/Jwk_dzdc/EN/10.19388/j.zgdzdc.2021.01.11 OR http://journal25.magtechjournal.com/Jwk_dzdc/EN/Y2021/V8/I1/97

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