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DOI	10.1007/s10346-019-01145-3
	Source characteristics and dynamics of the October 2018 Baige landslide revealed by broadband seismograms
	Zhang, Zhen; He, Siming; Liu, Wei; Liang, Heng; Yan, Shuaixing; Deng, Yu; Bai, Xiuqiang; Chen, Zheng
通讯作者	He, SM (通讯作者)
发表日期	2019
ISSN	1612-510X
EISSN	1612-5118
起始页码	777
结束页码	785
卷号	16 期号:4
英文摘要	The catastrophic Baige landslide occurred at 22:05:36 (Beijing time, UTC+8) on the 10th of October 2018 in Tibet, China. The large and rapid landslide generated strong long-period seismic signals that were recorded by broadband seismic stations. In this study, we inverted the long-period seismic data from five broadband seismic stations at distances of 108 to 255km from the event to obtain a time series of forces that the landslide exerted on the Earth. Then, we calculated the spectrogram of the vertical component of the seismic signal generated by the event, recorded at the closest broadband seismic station (GZI). This spectrogram, combined with the force-time function and the field investigation, described the dynamic process of the landslide that could be divided into three intervals. For the first interval, assuming that the rockslide can be regarded as a sliding block, we estimated the average slope-parallel acceleration of the sliding materials at 1.08m/s(2), and the average friction coefficient at the base of the rockslide at 0.47. In the second and third intervals, the rockslide had converted to granular debris. The direction and timing of the force correspond to the different points in the sliding path of the granular debris. We used this correlation to estimate the speeds of the granular debris. This study demonstrates that the seismic signal generated by the landslide provides an effective method for estimating the dynamic properties of the landslide.
关键词	MOUNT ST-HELENS SEISMIC DETECTION DEBRIS-FLOW WAVES ERUPTION NETWORK
英文关键词	Baige landslide; Spectrogram; Long-period seismic signal; Force-time function; Landslide dynamics
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Geological ; Geosciences, Multidisciplinary
WOS记录号	WOS:000463099000009
来源期刊	LANDSLIDES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259435
推荐引用方式 GB/T 7714	Zhang, Zhen,He, Siming,Liu, Wei,et al. Source characteristics and dynamics of the October 2018 Baige landslide revealed by broadband seismograms[J]. 中国科学院青藏高原研究所,2019,16(4).
APA	Zhang, Zhen.,He, Siming.,Liu, Wei.,Liang, Heng.,Yan, Shuaixing.,...&Chen, Zheng.(2019).Source characteristics and dynamics of the October 2018 Baige landslide revealed by broadband seismograms.LANDSLIDES,16(4).
MLA	Zhang, Zhen,et al."Source characteristics and dynamics of the October 2018 Baige landslide revealed by broadband seismograms".LANDSLIDES 16.4(2019).