Seismic signal characteristics and interpretation of the 2020 “6.17” Danba landslide dam failure hazard chain process

Landslides ◽  
2021 ◽  
Author(s):  
Yan Yan ◽  
Yifei Cui ◽  
Dingzhu Liu ◽  
Hui Tang ◽  
Yongjian Li ◽  
...  
Keyword(s):  
Landslide Dam ◽  
Seismic Signal ◽  
Dam Failure ◽  
Chain Process ◽  
Signal Characteristics

Characteristics and interpretation of the seismic signal of a field-scale landslide dam failure experiment

2017 ◽  
Vol 14 (2) ◽  
pp. 219-236 ◽  
Author(s):  
Yan Yan ◽  
Peng Cui ◽  
Su-chin Chen ◽  
Xiao-qing Chen ◽  
Hua-yong Chen ◽  
...  
Keyword(s):  
Landslide Dam ◽  
Seismic Signal ◽  
Dam Failure ◽  
Field Scale

Local seismic attributes

Geophysics ◽  
2007 ◽  
Vol 72 (3) ◽  
pp. A29-A33 ◽  
Author(s):  
Sergey Fomel
Keyword(s):  
Image Registration ◽  
Seismic Signal ◽  
Seismic Attributes ◽  
Data Sets ◽  
Local Similarity ◽  
Seismic Signals ◽  
Practical Applications ◽  
Regularized Inversion ◽  
Signal Characteristics ◽  
Land Survey

Local seismic attributes measure seismic signal characteristics not instantaneously, at each signal point, and not globally, across a data window, but locally in the neighborhood of each point. I define local attributes with the help of regularized inversion and demonstrate their usefulness for measuring local frequencies of seismic signals and local similarity between different data sets. I use shaping regularization for controlling the locality and smoothness of local attributes. A multicomponent-image-registration example from a nine-component land survey illustrates practical applications of local attributes for measuring differences between registered images.

AN INTEGRATED APPROACH TO PREDICT OUTFLOW HYDROGRAPH DUE TO LANDSLIDE DAM FAILURE BY OVERTOPPING AND SLIDING

2008 ◽  
Vol 52 ◽  
pp. 151-156 ◽  
Author(s):  
Ripendra AWAL ◽  
Hajime NAKAGAWA ◽  
Kenji KAWAIKE ◽  
Yasuyuki BABA ◽  
Hao ZHANG
Keyword(s):  
Landslide Dam ◽  
Integrated Approach ◽  
Dam Failure ◽  
Outflow Hydrograph

Landslide Dam Failure Analysis Using Imaging and Ranging Sensors

2021 ◽  
pp. 3-17
Author(s):  
Keivan Tavakoli ◽  
Ehsan Zadehali ◽  
Arsalan Malekian ◽  
Sara Darsi ◽  
Laura Longoni ◽  
...  
Keyword(s):  
Failure Analysis ◽  
Landslide Dam ◽  
Dam Failure

scholarly journals Dynamic decision making for dam-break emergency management – Part 2: Application to Tangjiashan landslide dam failure

2013 ◽  
Vol 13 (2) ◽  
pp. 439-454 ◽  
Author(s):  
M. Peng ◽  
L. M. Zhang
Keyword(s):  
Decision Making ◽  
At Risk ◽  
Emergency Management ◽  
Landslide Dam ◽  
Dam Break ◽  
Flood Routing ◽  
Dynamic Decision Making ◽  
Dam Failure ◽  
Population At Risk ◽  
Three Stages

Abstract. Tangjiashan landslide dam, which was triggered by the Ms = 8.0 Wenchuan earthquake in 2008 in China, threatened 1.2 million people downstream of the dam. All people in Beichuan Town 3.5 km downstream of the dam and 197 thousand people in Mianyang City 85 km downstream of the dam were evacuated 10 days before the breaching of the dam. Making such an important decision under uncertainty was difficult. This paper applied a dynamic decision-making framework for dam-break emergency management (DYDEM) to help rational decision in the emergency management of the Tangjiashan landslide dam. Three stages are identified with different levels of hydrological, geological and social-economic information along the timeline of the landslide dam failure event. The probability of dam failure is taken as a time series. The dam breaching parameters are predicted with a set of empirical models in stage 1 when no soil property information is known, and a physical model in stages 2 and 3 when knowledge of soil properties has been obtained. The flood routing downstream of the dam in these three stages is analyzed to evaluate the population at risk (PAR). The flood consequences, including evacuation costs, flood damage and monetized loss of life, are evaluated as functions of warning time using a human risk analysis model based on Bayesian networks. Finally, dynamic decision analysis is conducted to find the optimal time to evacuate the population at risk with minimum total loss in each of these three stages.

Landslide dam failure and flood hydraulics. Part II: coupled mathematical modelling

2011 ◽  
Vol 59 (2) ◽  
pp. 1021-1045 ◽  
Author(s):  
Zhixian Cao ◽  
Zhiyuan Yue ◽  
Gareth Pender
Keyword(s):  
Mathematical Modelling ◽  
Landslide Dam ◽  
Dam Failure

Landslide dam failure and flood hydraulics. Part I: experimental investigation

2011 ◽  
Vol 59 (2) ◽  
pp. 1003-1019 ◽  
Author(s):  
Zhixian Cao ◽  
Zhiyuan Yue ◽  
Gareth Pender
Keyword(s):  
Experimental Investigation ◽  
Landslide Dam ◽  
Dam Failure
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