Shaking table test and numerical simulation on the effect of reinforcement on the seismic safety of dam slopes
ZHU Ya-lin1,2, KONG Xian-jing1, ZOU De-gao1, LI Yong-sheng1
1.School of Civil and Hydraulic Engineering,Dalian University of Technology,Dalian 116023,China;2.School of Civil and Hydraulic Engineering,Hefei University of Technology,Hefei 230009,China
Abstract:
The seismic safety of the reinforcement dam slope is studied through shaking table test and numerical simulation.The dynamic characteristics of dam slopes,failure mechanism,seismic stability,as well as the effect of reinforcement during earthquakes are discussed.An elasto-plastic analysis method (FLAC) is used to simulate the dynamic failure process of the reinforcement dam slope.The change law of permanent displacement of dam slope is studied.The effect of the length and the space of reinforcement on the depth of slip surface and the slope stability are investigated.Good agreement is obtained between the numerical results and those from shaking table tests.The results show that the dynamic failure is a gradual process not at a particular time.With the increase of the reinforcement length or the decreasing reinforcement spacing,the slip surface becomes deeper and thus the slope stability is improved.The reinforcement can obviously enhance the overall stability of slope dam.It can also effectively control the shallow sliding of slope.These researches provide basic data for reinforcement measures design of earth-rockfill dam.
Key words: dam slope shaking table test reinforcement numerical simulation slip surface
DOI：10.11916/j.issn.1005-9113.2011.04.025
Clc Number:TV698.23
Fund:
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Shaking table test and numerical simulation on the effect of reinforcement on the seismic safety of
本站小编 哈尔滨工业大学/2019-10-23
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