基于多重散射波波速变化的滑坡实时监测方法与应用研究

doi:10.13722/j.cnki.jrme.2020.0426

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Abstract Based on the recent advance of ambient noise in seismology and diffusing wave in acoustics，a novel method for monitoring the wave velocity change of rock mass inside slopes using diffusing wave induced by ambient noise is proposed，by which the ground surface vibration caused by ambient noise is monitored using seismometers. The real time wave velocity change of the underground rock mass can be obtained through the correlation of the diffusing wave. This method was applied to monitor the rock slope at the right band of the reservoir of the Pubugou Power Station in Sichuan Province. The results show that the rock mass wave velocity varies with the season and is affected by the nearby earthquake and precipitation. Specifically，the rock mass wave velocity increases with the temperature，decreases temporarily due to the earthquake and decreases continuously with the precipitation. Around 7 days prior to a local small landslide，abnormal wave velocity decrease was observed，and the velocity stayed at a minimum value till the catastrophic failure.

Key words： slope engineering rock slopes landslide prediction ambient noise diffusing wave rock mass wave velocity

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	Articles by authors
	XIE Fan1
	XIA Kaiwen2
	3
	HUANG Huibao4
	DAI Shigui5
	WANG Baoshan6
	WEI Wei7
	8

Cite this article:

XIE Fan1,XIA Kaiwen2,3, et al. A new rock mass wave velocity monitoring method of slopes based on multiple scattering waves and its field application[J]. , 2020, 39(11): 2274-2282.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2020.0426 OR https://rockmech.whrsm.ac.cn/EN/Y2020/V39/I11/2274

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