Analysis of landsliding by earthquake shaking using a block-on-slope thermo-mechanical model: Example of Jiufengershan landslide, central Taiwan

Chang, Kuo-Jen; Taboada, Alfredo; Lin, Min; Chen, Rou-Fei

doi:10.1016/j.enggeo.2005.04.004

Cited by 57 publications

(45 citation statements)

References 22 publications

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“…Many researchers attempted to explore the kinematics of these landslides (Chen et al 2003;Chang et al 2005;Dong et al 2009;Tang et al 2009;Kuo et al 2009;Miyamoto et al 2009;Yano et al 2009). The results indicating the fast moving and long run-out of the giant landslides is dominated by the strength weakening on the slip surface after large displacement of the moving mass with high velocity.…”

Section: Introductionmentioning

confidence: 97%

Velocity-Displacement Dependent Friction Coefficient and the Kinematics of Giant Landslide

Dong

Yang

et al. 2012

Earthquake-Induced Landslides

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Friction characteristics on the sliding surface of giant landslide is important for investigating the triggering, moving, and deposition. In this research, we incorporating a velocity-displacement dependent friction law into the Newmark method to predict the kinematics of a giant landslide. The parameters of the friction law are determined from the high velocity rotary shear experiments of shale and the fault gouge collected from the Tsaoling landslide site triggered by Chi-Chi earthquake in 1999. Based on the strong ground motion data and the account of a survivor, the proposed approach is validated. It is concluded that the Newmark method incorporating into a velocity-displacement dependent friction law can be used to precisely reproduce the detachment, rapid moving, and long run-out of a giant landslide.

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Section: Introductionmentioning

confidence: 97%

Velocity-Displacement Dependent Friction Coefficient and the Kinematics of Giant Landslide

Dong

Yang

et al. 2012

Earthquake-Induced Landslides

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“…Temperature increase in the slipping zone may also have led to pressurization of pore water with the same effect [Anderson, 1980;Voight and Faust, 1982;Vardoulakis, 2000Vardoulakis, , 2002a. Total loss of strength by thermal pressurization has also been claimed for the Jiufengershan rock and soil avalanche triggered by the Chi-Chi (Taiwan) 1999 earthquake [Chang et al, 2005a[Chang et al, , 2005b. Sitar et al [2005] on the other hand showed that in order to obtain such high slip velocities, the aforementioned reduction of the frictional resistance should have been accompanied by internal disintegration of the slide mass.…”

Section: Introductionmentioning

confidence: 99%

Thermoporomechanics of creeping landslides: The 1963 Vaiont slide, northern Italy

2007

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[1] The catastrophic Vaiont landslide (Southern Alps, Italy) of 9 October 1963 moved 2.7 Â 10 8 m 3 of rock that collapsed in an artificial lake, causing a giant wave that killed 1917 people. The landslide was preceded by 2-3 years of creep that ended with the final collapse of the rock mass slipping at about 30 m s À1 . Assuming that creep was localized in a clay-rich water-saturated layer, in this study we propose shear heating as the primary mechanism for the long-term phase of accelerating creep. We study only the creeping phase of the slide, and we model this phase using a rigid block moving over a thin zone of high shear strain rates. Introducing a thermal softening and velocity strengthening law for the basal material, we reformulate the governing equations of a water-saturated porous material, obtaining an estimate for the collapse time of the slide. Our model is calibrated upon real velocity measurements from the Vaiont landslide and provides an estimation of the critical time of failure up to 169 days before the collapse. We also show that the slide became critical $21 days before the collapse, when shear heating started localizing in the clay-rich layer, inducing a tendency for slip localization and thermal runaway instability in a plane. The total loss of strength in the slipping zone during the last minutes prior to the slide is explained by the onset of thermal pressurization, triggered by the temperature rise within the clay-rich layer.

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“…Wasowski et al (2011) provided a thorough review of previous, current, and future research studies pertaining to the topic of earthquake-induced landslides. In general, the analysis of dynamic responses and deformations in slopes can be performed by numerical integration (Newmark 1965;Wilson and Keefer 1983;Chang et al 2005), numerical simulation (Wakai et al 2009;Zhang et al 2012), and physical modeling (Wartman et al 2005;Wang and Lin 2011). Analysis of earthquake-induced landslides usually requires information about shearing resistance at the sliding plane of a slope.…”

Section: Introductionmentioning

confidence: 99%

Analysis of an anti-dip landslide triggered by the 2008 Wenchuan earthquake in China

Huang

Zhao

et al. 2013

Nat Hazards

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The Guantan landslide, with a total displaced mass of about 468 9 10 4 m 3 , was triggered by the 2008 Wenchuan earthquake and succeeding rainfall in Jushui Town, Sichuan Province, China. The landslide occurred on an anti-dip hard rock slope with a weak rock founding stratum of 200 m in thickness. To investigate the failure mechanism of the Guantan landslide, dynamic behaviors of hard and soft rock slopes were investigated by means of large scale shaking table tests. The laboratory models attempted to simulate the field geological conditions of the Guantan landslide. Sinusoidal waves and actual seismic waves measured from the Wenchuan Earthquake were applied on the slope models under 37 loading configurations. The experimental results indicated that deformation mainly developed at a shallow depth in the upper part of the hard rock slope and in the upper (near the crest) and lower (near the toe) parts of the soft rock slope. An equation for predicting the depth of sliding plane was proposed based on the location of the maximum horizontal acceleration. Finally, it was concluded that the failure process of the Guantan landslide occurred in three stages: (1) toppling failure caused by compression of the underlying soft rock strata, (2) formation of crushed hard rock and sliding surface in soft rock as the result of seismic shocks, particularly in the horizontal direction, and (3) aftershock rainfall accelerates the process of mass movement along the sliding plane.

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Analysis of landsliding by earthquake shaking using a block-on-slope thermo-mechanical model: Example of Jiufengershan landslide, central Taiwan

Cited by 57 publications

References 22 publications

Velocity-Displacement Dependent Friction Coefficient and the Kinematics of Giant Landslide

Velocity-Displacement Dependent Friction Coefficient and the Kinematics of Giant Landslide

Thermoporomechanics of creeping landslides: The 1963 Vaiont slide, northern Italy

Analysis of an anti-dip landslide triggered by the 2008 Wenchuan earthquake in China

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