Geological causes and geomorphological precursors of the Tsaoling landslide triggered by the 1999 Chi-Chi earthquake, Taiwan

Chigira, Masahiro; Wang, Wen-Neng; Furuya, Takahiko; Kamai, Toshitaka

doi:10.1016/s0013-7952(02)00232-6

Cited by 161 publications

(67 citation statements)

References 18 publications

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“…Earthquakes cause large-scale ground movement (shaking) and can trigger severe landslides over broad areas resulting in serious damage and casualties (Harp and Jibson., 1996;Central Geological Survey, 2000;Chigira et al, 2003;Keefer et al, 2006;Keefer and Larsen, 2007;Dai et al, 2010). To analyze an earthquake-induced landslide hazard, in addition to describing the regional correlation between seismic events and landslides under various conditions, it is critical to study the failure mechanism of catastrophic earthquake-induced landslides.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of the Donghekou landslide triggered by the 2008 Wenchuan earthquake revealed by discrete element modeling

Yuan

Tang

et al. 2014

Nat. Hazards Earth Syst. Sci.

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Abstract. The huge Donghekou landslide was triggered by the Wenchuan earthquake in 2008 with about 2.4 × 10 7 m 3 of rock displaced. The landslide is considered as an example of an earthquake-induced "ejection" event, where dislocated slope materials was expelled over a section of the slope, but the kinematic processes are not well understood. We used the 2-D granular discrete element method to characterize the kinematic behavior and mechanics of this "ejection landslide". The initial boundary conditions were applied along the ball-wall contacts by using derived velocities integrated from strong motion data with a duration of 125 s, including the peak acceleration near the Donghekou area. The constraints were primarily determined from the final geometry of the landslide and geological structures to account for the actual landslide characteristics. Simulated results showed that the large local seismic acceleration and a free face under the sliding body, caused by the dip difference between the upper slide face and the natural slope, originated from the activation of the landslide. For the lower sliding body, its kinematic mechanism was changed during sliding. Initially it was a push-type landslide, and then gradually changed to a retrogressive landslide. The eroded bed on the slope during the landslide had the potential of slightly increasing the runout distance from 1435 to 1519 m, and was predicted in the numerical simulation.

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Section: Introductionmentioning

confidence: 99%

Mechanism of the Donghekou landslide triggered by the 2008 Wenchuan earthquake revealed by discrete element modeling

Yuan

Tang

et al. 2014

Nat. Hazards Earth Syst. Sci.

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“…Multiple historical landslide events occurred in this area, which were triggered by earthquakes, typhoons, and torrential rains in 1862, 1898, 1941, 1942, 1951, 1979, and 1999 [2,[38][39][40][41][42][43]46]. Among these, the landslides in 1862, 1941, and 1999 were triggered by earthquakes.…”

Section: Overview Of Tsaoling Landslidementioning

confidence: 99%

“…Figure 3 shows the aerial view of the Tsaoling area taken in 2012. Before the incident of the Chi-Chi earthquake in 1999, there was already an obvious V-shaped scarplet in the landslide crown area, a precursor of sliding before the landslide event [43]. When the Chi-Chi earthquake occurred, a large-scale rock avalanche was triggered, forming a large-scale bare slope.…”

Section: Overview Of Tsaoling Landslidementioning

confidence: 99%

Direct Measurements of Bedrock Incision Rates on the Surface of a Large Dip-slope Landslide by Multi-Period Airborne Laser Scanning DEMs

Hsieh

Chan

et al. 2016

Remote Sensing

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This study uses three periods of airborne laser scanning (ALS) digital elevation model (DEM) data to analyze the short-term erosional features of the Tsaoling landslide triggered by the 1999 Chi-Chi earthquake in Taiwan. Two methods for calculating the bedrock incision rate, the equal-interval cross section selection method and the continuous swath profiles selection method, were used in the study after nearly ten years of gully incision following the earthquake-triggered dip-slope landslide. Multi-temporal gully incision rates were obtained using the continuous swath profiles selection method, which is considered a practical and convenient approach in terrain change studies. After error estimation and comparison of the multi-period ALS DEMs, the terrain change in different periods can be directly calculated, reducing time-consuming fieldwork such as installation of erosion pins and measurement of topographic cross sections on site. The gully bedrock incision rate calculated by the three periods of ALS DEMs on the surface of the Tsaoling landslide ranged from 0.23 m/year to 3.98 m/year. The local gully incision rate in the lower part of the landslide surface was found to be remarkably faster than that of the other regions, suggesting that the fast incision of the toe area possibly contributes to the occurrence of repeated landslides in the Tsaoling area.

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“…Moreover, the induced landslide lakes also pose threat to life and property nearby [3]. Related researches have been extensively conducted, such as the cause of landslides [4][5][6], volumetric changes [2,7,8], the evolution of topography [1] and the mechanism behind landsides [9,10]. However, a series of small-scale landslides occurred after 1999 with significant soil transport was not well studied, which can aslo lead to secondary disasters such as rockslide, dammed lakes and river incision [3,11].…”

Section: Introductionmentioning

confidence: 99%

Recent Landslide Movement in Tsaoling, Taiwan Tracked by TerraSAR-X/TanDEM-X DEM Time Series

Liu

Zhang

et al. 2017

Remote Sensing

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Abstract:The Tsaoling Landslide in Taiwan has captured attentions of researchers worldwide due to its frequent catastrophic failure and distinctive features. Thanks to the launch of TerraSAR-X/TanDEM-X (TSX/TDX) constellation, retrieval of global DEM with high spatial resolution and accuracy becomes possible, which is extremely useful for the study of natural hazards (e.g., landslides) globally. We attempt here for the first time to track recent landslide movements in Tsaoling Taiwan by analyzing DEM time series reconstructed from TSX/TDX image pairs. Quality improvement of InSAR derived DEM through an iterated differential operation is addressed during the data processing.

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Geological causes and geomorphological precursors of the Tsaoling landslide triggered by the 1999 Chi-Chi earthquake, Taiwan

Cited by 161 publications

References 18 publications

Mechanism of the Donghekou landslide triggered by the 2008 Wenchuan earthquake revealed by discrete element modeling

Mechanism of the Donghekou landslide triggered by the 2008 Wenchuan earthquake revealed by discrete element modeling

Direct Measurements of Bedrock Incision Rates on the Surface of a Large Dip-slope Landslide by Multi-Period Airborne Laser Scanning DEMs

Recent Landslide Movement in Tsaoling, Taiwan Tracked by TerraSAR-X/TanDEM-X DEM Time Series

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