泥石流危险性三要素评估方法

doi:10.13722/j.cnki.jrme.2017.1241

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Abstract

As a common ill geologic phenomenon in mountainous areas，debris flow has brought about great number of disasters. Due to the complexity of formation and evolvement of debris flows，however，it is difficult to exactly evaluate the risk of debris flows. In this paper，on basis of the investigation of 55 debris flow cases in southwest China，it was proposed to assess the risk of debris flows according to three parameters including rain intensity，slope gradient and unstable material source. Effects of rain intensity，slope gradient and unstable material source on the risk of debris flows were discussed and corresponding influence coefficients of the three parameters were given out. A three-parameter method for evaluating debris flow hazards was developed through back analysis and improved by a correction factor considering the block conditions of debris flow gullies. The method was applied to an amount of debris flow cases and proved to be reasonable.

Key words： slope engineering debris flow geological disasters influence factors three-parameter method

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	Articles by authors
	PENG Shixiong
	CHEN Weidong

Cite this article:

PENG Shixiong,CHEN Weidong. A three-parameter method for evaluating debris flow hazards[J]. , 2018, 37(S1): 3542-3549.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.1241 OR https://rockmech.whrsm.ac.cn/EN/Y2018/V37/IS1/3542

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