Characteristics of Earthquake Damage for High Core and Concrete-Faced Rock-Fill Dams by Shaking Table Tests

The pattern and characteristics of seismic damage for Shuangjiangkou ECRD and Houziyan CFRD models were studied through large-scale earthquake simulation shaking table tests in this work. The test results showed that the main earthquake damage pattern of rock-fill dam is permanent residual deformation and shallow slide on the downstream slope. Seismic residual deformation of rock-fill dam, which is filled and compacted well, is very small. Regardless of ECRD or CFRD, the horizontal displacement and settlement on downstream slope are significantly larger than upstream slope under empty reservoir. The analysis of residual deformation and vibration frequency before and after failure indicated that aseismic performance of CFRD is superior to ECRD. Because of the remarkable whipping effect in the high rock-fill dam, the key parts of aseismic design is downstream slope near the dam top, where appropriate aseismic measures should be taken.

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Seismic performance of earth-core and concrete-faced rock-fill dams by large-scale shaking table tests

Soil Dynamics and Earthquake Engineering ◽

10.1016/j.soildyn.2013.09.019 ◽

2014 ◽

Vol 56 ◽

pp. 1-12 ◽

Cited By ~ 20

Author(s):

Linjuan Yuan ◽

Xiaosheng Liu ◽

Xiaogang Wang ◽

Yusheng Yang ◽

Zhengquan Yang

Keyword(s):

Seismic Performance ◽

Large Scale ◽

Shaking Table ◽

Shaking Table Tests ◽

Rock Fill ◽

Earth Core

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Landslide dam deformation analysis under aftershocks using large-scale shaking table tests measured by videogrammetric technique

Engineering Geology ◽

10.1016/j.enggeo.2014.09.008 ◽

2015 ◽

Vol 186 ◽

pp. 68-78 ◽

Cited By ~ 18

Author(s):

Zhen-Ming Shi ◽

You-Quan Wang ◽

Ming Peng ◽

Sheng-Gong Guan ◽

Jian-Feng Chen

Keyword(s):

Large Scale ◽

Landslide Dam ◽

Shaking Table ◽

Deformation Analysis ◽

Shaking Table Tests ◽

Dam Deformation

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INVESTIGATION OF RESIDUAL DEFORMATION OF SMALL EARTH DAMS IN FULL-SCALE SHAKING TABLE TESTS

Journal of Japan Society of Civil Engineers Ser A1 (Structural Engineering & Earthquake Engineering (SE/EE)) ◽

10.2208/jscejseee.73.i_815 ◽

2017 ◽

Vol 73 (4) ◽

pp. I_815-I_826 ◽

Cited By ~ 2

Author(s):

Hiroshi NAKAZAWA ◽

Yutaka SAWADA ◽

Tetsuya ODA ◽

Tomohiro KOBAYASHI ◽

Seita KOBAYASHI ◽

...

Keyword(s):

Residual Deformation ◽

Full Scale ◽

Shaking Table ◽

Earth Dams ◽

Shaking Table Tests

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Shaking Table Tests on Multi-Leaf Stone Masonry Structures: Analysis of Stiffness Decay

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.133-134.647 ◽

2010 ◽

Vol 133-134 ◽

pp. 647-652 ◽

Cited By ~ 5

Author(s):

Nicola Mazzon ◽

Cano M. Chavez ◽

Maria Rosa Valluzzi ◽

F. Casarin ◽

Claudio Modena

Keyword(s):

Dynamic Behaviour ◽

Shaking Table ◽

Stone Masonry ◽

Mode Shapes ◽

Masonry Structures ◽

Shaking Table Tests ◽

Grout Injection ◽

Hydraulic Lime ◽

Natural Hydraulic Lime ◽

Before And After

The influence of the natural hydraulic lime-based grout on the dynamic behaviour of injected multi-leaf stone masonry elements is discussed in the paper. Shaking table experiments on two stone masonry buildings, tested before and after grout injection, have been performed. The paper focuses on the analysis of both the recorded accelerations and related displacements, at the bottom and at each further storey. This leads to evaluate the stiffness of the unstrengthened and injected structures. The input at increasing PGA allowed the stiffness decay to be studied, simulating a gradual damaging of the structures. These results were also interpreted in the light of both computed frequencies and mode shapes. Finally, the comparison among these results, obtained from all the models, allows to deepen the knowledge concerning the effects induced by the lime-based grout injection and on its capability to modify the dynamic behaviour, when intervening on a damaged (repairing) or on an undamaged (strengthening) structure.

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Seismic Response of Concrete-Canvas Reinforced Slopes: Influence of Tilt Degrees for Reinforcement

Journal of Earthquake and Tsunami ◽

10.1142/s1793431120500116 ◽

2020 ◽

Vol 14 (03) ◽

pp. 2050011

Author(s):

Lin Zhou ◽

Guangya Ding ◽

Jie Tan ◽

Xiaoxia Zhao ◽

Jun Wang

Keyword(s):

Seismic Response ◽

Threshold Level ◽

Shaking Table ◽

Shaking Table Tests ◽

Slope Surface ◽

Reinforcing Effect ◽

Failure Patterns ◽

Coral Sand ◽

Before And After ◽

Reinforced Slopes

A series of shaking table tests were conducted on reinforced slopes to study the slope dynamic characteristics. The influence of concrete-canvas tilt degrees on the seismic response was studied. By considering the effects of different concrete-canvas tilt degrees, the seismic responses of the reinforced slopes were analyzed, along with the accelerations, crest settlements, and horizontal displacements. The failure patterns of different model slopes were compared using white coral sand marks placed at designated elevations to monitor the internal slide of the reinforced slopes. Several round markers were placed on the slope surface to compare the deformation before and after shaking with different amplitudes. The results indicated that with the increase in concrete-canvas tilt degrees, a better reinforcing effect was obtained, and 30° reinforcement reached a threshold level, the slide-out point shifts from the crest of the slope to the middle of the reinforced model. The bottom 2/7th zone of the slope was relatively stable during the earthquake and the reinforcement was ineffective at the bottom of the slope. When both considered the influence of reinforcing effect and construction difficulty, 20° is the suitable tilt degree in concrete-canvas reinforced slopes. The characteristics of increasing strength of the concrete canvas make it suitable for the application in slope protection.

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