Dynamic response of a physical anti-dip rock slope model revealed by shaking table tests

Chen, Chi-Chieh; Li, Hung-Hui; Chiu, Y.C.; Tsai, Ying-Kuan

doi:10.1016/j.enggeo.2020.105772

Cited by 29 publications

(9 citation statements)

References 25 publications

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“…Video measurement techniques are widely used in shaker tests, mainly dual-camera stereo measurement [6,7], multi-camera cooperative measurement [8], and single-camera measurement [9]. Dual-camera measurement can obtain high-precision 3D deformation information of the target under stereo matching with global constraints, but it is difficult to be applied in confined spaces or complex environments due to the camera baseline setting problem [10].…”

Section: Introductionmentioning

confidence: 99%

Displacement Measurement of Urban Ramp Bridge Model Using Monocular High-Speed Camera

Jia

Liu

Wang

2023

J. Phys.: Conf. Ser.

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Urban ramp bridge plays an important role in unblocking urban traffic and improving urban road network structure. Aiming at the limitations of traditional contact sensors in global measurement, this paper adopts non-contact, high frame rate, high-precision monocular high-speed video measurement technology to measure the dynamic response of the ramp bridge model loaded on the shaking table. The feasibility of video measurement in structure measurement is verified by comparing with the results of wire displacement meter, and the overall measurement accuracy is better than 0.1mm. The seismic effects of two different isolation bearings are compared and analyzed, and the test shows that the plate rubber bearing has a better damping effect.

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Section: Introductionmentioning

confidence: 99%

Displacement Measurement of Urban Ramp Bridge Model Using Monocular High-Speed Camera

Jia

Liu

Wang

2023

J. Phys.: Conf. Ser.

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“…Four different methods are commonly used to study the stability of anti-dip rock slopes: (a) in situ investigations [12,13], (b) laboratory similar testing with rock-like materials [14][15][16], (c) theoretical and analytical methods (e.g., the limit equilibrium method) [17][18][19], and (d) numerical simulation methods [5,20,21]. In situ investigations can provide valuable information about a rock slope before (e.g., the geological condition) and after (e.g., the failure characteristics) slope failure but cannot reveal the evolutionary process or instability mechanism of the slope.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Interbedded Anti-Dip Rock Slopes Based on Discrete Element Modeling: A Case Study

Li,

Yue,

et al. 2023

Applied Sciences

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Varying geological conditions and different rock types lead to complex failure modes and instability of interbedded anti-dip rock slopes. To study the characteristics of failure evolution of interbedded anti-dip slopes, a two-dimensional particle flow code (PFC2D) based on the discrete element method (DEM) was utilized to establish an interbedded anti-dip rock slope numerical model for the Fushun West Open-pit Mine based on the true geological conditions and field investigations. The slope model with an irregular surface consists of interbedded mudstone and brown shale as two different rock layers, and a number of small-scale rock joints are randomly distributed in the rock layers. The influence of different inclination angles (20° and 70°) of the rock layer and slope angles (60° and 80°) on the stability of interbedded anti-dip rock slopes was considered. The evolution of the failure progress was monitored by the displacement field and force field. The simulation results showed that the rock joints in the rock stratum promoted crack initiation and increased the crack density but did not change its shear-slip failure mode. A large inclination angle of the rock layers and slope angle can lead to topping slip failure along the slip zone. However, shear-slip instability generally occurs in interbedded anti-dip rock slopes with small inclination angles of the rock layer and small slope angles. These results can contribute to a better understanding of the failure mechanism of interbedded anti-dip rock slopes under different geological conditions and provide a reference for disaster prevention.

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“…Chen developed a large base friction test-bed, which can better simulate landslides [28]. Li et al and Chena et al used a shaking table to study the relationship between discontinuity and landslides, as well as the stability changes of anti-dip rock slopes with joint development under the influence of external dynamic conditions [29,30]. Alzo'ubi et al and Chen et al used the centrifuge method to simulate the conditions of rock slope deformation and combined it with the comparative numerical simulation method to study the relationship between the failure depth of toppling deformation and the sliding surface caused by slope deformation [31,32].…”

Section: Introductionmentioning

confidence: 99%

Deformation Characteristics and Stability Prediction of Mala Landslide at Miaowei Hydropower Station under Hydrodynamic Action

Lv,

Shan,

Yin

et al. 2023

Water

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In recent years, with the completion of the construction of large-scale hydropower projects in China, a series of engineering geological problems that occurred during the operation of the hydropower station have become an important issue affecting the normal operation of hydropower stations. Landslides on reservoir slopes triggered especially by water storage and other factors related to the construction of hydropower stations seriously affect the normal operation of the hydropower station and lead to other geological disasters. Research indicates that many reservoir-area landslides are triggered by hydrodynamic forces resulting from water level fluctuations in hydroelectric power stations. The Mala landslide of Miaowei Hydropower Station in the Lancang River Basin of China is taken as the engineering example to study the influence of hydrodynamic forces on the deformation characteristics and stability trends of the landslide. This paper explores the formation mechanism and influencing factors of the Mala landslide by conducting a field investigation of the Mala landslide and analyzing the monitoring data. Additionally, this paper also discusses the impacts of water storage, rainfall, and engineering construction on landslide induction. It is considered that the evolution of the Mala landslide from the initial stage of water storage to the current state mainly includes four stages: small-scale bank collapse stage, creep deformation stage, accelerated sliding stage, and uniform sliding stage. Moreover, the changes in the trend of landslide stability are analyzed using the two-dimensional finite element method. The research results provide a valuable reference for understanding the formation mechanism and predicting the deformation of reservoir landslides, which has considerable engineering practical significance.

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Dynamic response of a physical anti-dip rock slope model revealed by shaking table tests

Cited by 29 publications

References 25 publications

Displacement Measurement of Urban Ramp Bridge Model Using Monocular High-Speed Camera

Displacement Measurement of Urban Ramp Bridge Model Using Monocular High-Speed Camera

Numerical Analysis of Interbedded Anti-Dip Rock Slopes Based on Discrete Element Modeling: A Case Study

Deformation Characteristics and Stability Prediction of Mala Landslide at Miaowei Hydropower Station under Hydrodynamic Action

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