The role of active faults and sliding mechanism analysis of the 2017 Maoxian postseismic landslide in Sichuan, China

doi:10.1007/s10064-019-01480-8

	The role of active faults and sliding mechanism analysis of the 2017 Maoxian postseismic landslide in Sichuan, China
	Shao, Chongjian 1,2; Li, Yong 1; Lan, Hengxing 2; Li, Pengyu 3; Zhou, Rongjun 4; Ding, Hairong 1; Yan, Zhaokun 1; Dong, Shunli 1; Yan, Liang 1; Deng, Tao 1
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2019-12-01
卷号	78 期号:8 页码:5635-5651
关键词	Maoxian postseismic landslide Sliding mechanism Role of active faults Fault combination model
ISSN号	1435-9529
DOI	10.1007/s10064-019-01480-8
通讯作者	Li, Yong(liy@cdut.edu.cn)
英文摘要	A giant, high-position rockslide occurred in Xinmo village of Maoxian County, Sichuan, China, on June 24, 2017. It was the largest rockslide recorded since the 2008 Wenchuan earthquake, and caused great loss. We use field survey data and relevant information to describe the geometric and zoning of the Maoxian landslide, and we discuss its sliding mechanism and the role of active faults in its formation. The sliding mode of the Maoxian landslide involves a plane failure mechanism (sliding rupture), while the slipping process can be divided into two stages: a rock cracking and deterioration stage, and a high-speed sliding stage. The role of active faults (earthquake and fault movement) is probably the most important factor in the Maoxian landslide formation, while lithology played a catalytic role and rainfall acted as an inducing factor. The fault vertical combination model ("back thrust" dynamic model) proposed in this paper provides a reasonable explanation for the different distribution of the coseismic landslides caused by the 1933 M 7.5 Diexi earthquake. We consider that a steep slope near the active fault, especially where the active fault intersects, just like the "locked segment" of a fault, is the uppermost area to develop a large landslide.
资助项目	Key national research and development projects in the 13th five-year plan[2017YFC1501000] ; National Natural Science Foundation of China[41525010] ; National Natural Science Foundation of China[41741003] ; National Natural Science Foundation of China[41602306] ; Sichuan science and technology department project[2018124] ; Sichuan science and technology department project[2017JY0140] ; Earthquake science and technology special project of Sichuan earthquake administration[LY1910]
WOS关键词	RECENT XINMO LANDSLIDE ; WENCHUAN EARTHQUAKE ; CATASTROPHIC LANDSLIDES ; FAILURE ; THRESHOLD ; RAINFALL ; COUNTY ; AREA ; DEFORMATION ; PRECURSORS
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000496080700008
资助机构	Key national research and development projects in the 13th five-year plan ; National Natural Science Foundation of China ; Sichuan science and technology department project ; Earthquake science and technology special project of Sichuan earthquake administration
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/131087]
专题	中国科学院地理科学与资源研究所
通讯作者	Li, Yong
作者单位	1.Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610059, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 3.Sichuan Shutong Geotech Engn Co, Chengdu 610000, Sichuan, Peoples R China 4.Sichuan Earthquake Agcy, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Shao, Chongjian,Li, Yong,Lan, Hengxing,et al. The role of active faults and sliding mechanism analysis of the 2017 Maoxian postseismic landslide in Sichuan, China[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2019,78(8):5635-5651.
APA	Shao, Chongjian.,Li, Yong.,Lan, Hengxing.,Li, Pengyu.,Zhou, Rongjun.,...&Deng, Tao.(2019).The role of active faults and sliding mechanism analysis of the 2017 Maoxian postseismic landslide in Sichuan, China.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,78(8),5635-5651.
MLA	Shao, Chongjian,et al."The role of active faults and sliding mechanism analysis of the 2017 Maoxian postseismic landslide in Sichuan, China".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 78.8(2019):5635-5651.