The landslide stage of the Hsiaolin catastrophe: Simulation and validation

doi:10.1029/2010JF001921

	The landslide stage of the Hsiaolin catastrophe: Simulation and validation
	Kuo, C. Y.1; Tai, Y. C.8; Chen, C. C.3,4; Chang, K. J.2; Siau, A. Y.2; Dong, J. J.5; Han, R. H.6; Shimamoto, T.7; Lee, C. T.5
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
	2011-10-20
卷号	116
ISSN号	2169-9003
DOI	10.1029/2010JF001921
文献子类	Article
英文摘要	Typhoon Morakot struck southern Taiwan in the summer of 2009, causing the most severe flooding since the 1950s. In the early morning of August 9, rainfall triggered the Hsiaolin landslide, and the resulting debris avalanche covered the township of Hsiaolin Village, Kaohsiung. Around five hundred people were buried alive. Reconstruction of the runout of the debris avalanche would increase understanding of the large-scale avalanches for future hazard mitigation purposes. Simulation of the debris avalanche runout can provide valuable information for this purpose. A new continuum shallow-water model is applied to flow over general topography. The Coulomb friction law is adopted; the friction coefficient is initially determined by high pressure rotary-shearing tests and subsequently fine-tuned by an iterative procedure to minimize the difference between the simulation and the measurement. The friction coefficients measured by laboratory tests are found to be in reasonable agreement with the best-fit result of the simulation. In addition, Voellmy rheology is applied, but it is found that the role of the fluid viscous drag is insignificant. The simulation result in the village area is further corroborated by near-surface magnetic surveys. These indicate that the northern part of the village is dislocated, while the artifact structures of the southern part are buried near their original locations. By comparing the landslide front and the flow direction of the simulation, we are able to confirm, as also described by survivors, that the landslide swept the northern part of the village into the Cishan River, while the southern part was flooded subsequently by the debris from a dam breach about 20 min after the landslide.
WOS关键词	IRREGULAR 3-DIMENSIONAL TERRAIN ; FLUIDIZED GRANULAR MASSES ; FREE-SURFACE FLOW ; NUMERICAL-SIMULATION ; TSAOLING LANDSLIDE ; GENERAL TOPOGRAPHY ; EXPERIMENTAL TESTS ; TWISTED CHANNELS ; ANALYTIC SIGNAL ; ROCK AVALANCHE
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000296160700001
资助机构	National Science Council(NSC 98-2745-M-008-013 ; National Science Council(NSC 98-2745-M-008-013 ; NSC-99-2116-M-001-015) ; NSC-99-2116-M-001-015) ; National Science Council(NSC 98-2745-M-008-013 ; National Science Council(NSC 98-2745-M-008-013 ; NSC-99-2116-M-001-015) ; NSC-99-2116-M-001-015) ; National Science Council(NSC 98-2745-M-008-013 ; National Science Council(NSC 98-2745-M-008-013 ; NSC-99-2116-M-001-015) ; NSC-99-2116-M-001-015) ; National Science Council(NSC 98-2745-M-008-013 ; National Science Council(NSC 98-2745-M-008-013 ; NSC-99-2116-M-001-015) ; NSC-99-2116-M-001-015)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/81406]
专题	中国科学院地质与地球物理研究所
通讯作者	Kuo, C. Y.
作者单位	1.Acad Sinica, Res Ctr Appl Sci, Taipei 115, Taiwan 2.Natl Taipei Univ Technol, Dept Civil Engn, Taipei 106, Taiwan 3.Natl Cent Univ, Grad Inst Geophys, Jhongli 320, Taiwan 4.Natl Cent Univ, Dept Earth Sci, Jhongli 320, Taiwan 5.Natl Cent Univ, Grad Inst Appl Geol, Jhongli 320, Taiwan 6.Korea Inst Geosci & Mineral Resources, Geol Environm Div, Taejon 305350, South Korea 7.Acad Sinica, Inst Geol, China Earthquake Adm, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China 8.Natl Cheng Kung Univ, Dept Hydraul & Ocean Engn, Tainan 701, Taiwan
推荐引用方式 GB/T 7714	Kuo, C. Y.,Tai, Y. C.,Chen, C. C.,et al. The landslide stage of the Hsiaolin catastrophe: Simulation and validation[J]. JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,2011,116.
APA	Kuo, C. Y..,Tai, Y. C..,Chen, C. C..,Chang, K. J..,Siau, A. Y..,...&Lee, C. T..(2011).The landslide stage of the Hsiaolin catastrophe: Simulation and validation.JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,116.
MLA	Kuo, C. Y.,et al."The landslide stage of the Hsiaolin catastrophe: Simulation and validation".JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE 116(2011).