南芬露天铁矿高陡边坡失稳与降雨相关性研究

doi:10.13722/j.cnki.jrme.2015.0959

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Abstract The stability of high steep slope has become a major safety concern in the process of open pit mining in NanFen open-air iron ore. According to the results of engineering geological investigation and the analysis of geologic characteristics and hydrogeology conditions，It found that rainfall in rainy season is an important cause of landslide，the monitoring data of slope stability and rainfall at the same period are analyzed，It is concluded that when the rainfall is more than 100 mm，the slope failure is closely related to the rainfall. Finite element simulation software SEEP/W is used to simulate all the stages of rainfall infiltration of high steep slope，the slope safety factor at the different seepage moment is calculated，this results not only prove the accuracy of statistical analysis but also reveal the mechanical mechanism of slope instability，meanwhile it found the landslide has a lag of about 24 hours in heavy rain，the effective treatment method for high steep slope hydrology disaster of NanFen open-air iron ore is put forward. The results of this study may be useful for the protection of the same projects.

Key words： slope engineering rainfall slope stability correlation seepage field

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	Articles by authors
	YANG Xiaojie1
	2
	HOU Dinggui1
	2
	HAO Zhenli1
	2
	TAO Zhigang1
	2
	SHI Haiyang1
	2
	JIN Kun1
	2

Cite this article:

YANG Xiaojie1,2,HOU Dinggui1, et al. Research on correlations between slope stability and rainfall of high steep slope on Nanfen open-pit iron ore[J]. , 2016, 35(S1): 3232-3241.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.0959 OR https://rockmech.whrsm.ac.cn/EN/Y2016/V35/IS1/3232

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