Dynamic Response and Mechanical Behaviours of Geogrid for High Earth-rockfill Dams

Zhu, Yalin; Ma, Chi; Tan, Keai Sinn; Chen, Juxiang; Wang, Yixian

doi:10.1007/s10706-021-01839-3

Cited by 2 publications

(2 citation statements)

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“…In order to study the influence of GRSS on the stability of dam slope during earthquakes, based on the existing research [9][10][11] and with reference to the common parameter settings in engineering [48], the vertical spacing of GRSS layers (S v ) was set at 4 m and the length (L max ) was set at 50 m, for comparison with the original dam slope as a typical work condition. The random dynamic response of the dam slope was analyzed, and the seismic performance of the proposed measure was evaluated from the perspective of reliability.…”

Section: Seismic Response Analysismentioning

confidence: 99%

“…The results showed that reinforcement measures can reduce dam settlement and maximum shear strain, but increase the maximum horizontal peak acceleration. Zhu et al [9] analyzed the influence of various parameters of GRSS on seismic performance, based on the Fast Lagrangian Analysis of Continuum (FLAC) method. Yang [10] evaluated the seismic stability of reinforced earth-rock dams, based on the upper-bound theorem of limit analysis, and studied the influence of geogrid length on seismic performance.…”

Section: Introductionmentioning

confidence: 99%

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Reliability Analysis of High Concrete-Face Rockfill Dams and Study of Seismic Performance of Earthquake-Resistant Measures Based on Stochastic Dynamic Analysis

Rong

et al. 2021

Mathematics

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The randomness of earthquake excitation has a significant impact on the seismic performance of high earth-rock dams. In this paper, the seismic performance of geosynthetic-reinforced soil structures (GRSS) of high concrete face rockfill dams (CFRDs) is evaluated from the stochastic perspective. Multiple groups of seismic ground motions are generated based on spectral expression-random function non-stationary model. Taking Gushui CFRD as an example, this study calculates the failure probability of each damage level of non-reinforce slopes and reinforce slopes based on generalized probability density evolution method (GPDEM) and reliability analysis is presented though multiple evaluation indicators. The result shows that GRSS can reduce the mild damage of CFRDs during earthquake and restrain the moderate and severe damage. The influence of vertical spacing and length of GRSS on the seismic performance is obtained, which provides a reference for the seismic design and risk analysis of CFRDs.

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Section: Seismic Response Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%