Journal
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
Volume 21, Issue 4, Pages 297-313Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0267-7261(01)00011-2
Keywords
seismic performance; geosynthetic; reinforced soil retaining wall; reinforced slope; modular block; connection strength; compound failure; Ji-Ji/Chi-Chi earthquake
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This paper gives an overview on the application of geosynthetic-reinforced soil structures in Taiwan. Taiwan has an unique topography and geotechnical conditions that rendered a less conservative and more challenging design compared to that of North America, Europe and Japan. The Ji-Ji (Chi-Chi) earthquake of 1999 gave an opportunity to examine the behavior of reinforced soil structures. The performance of several modular-block reinforced soil retaining walls and reinforced slopes at the vicinity of the fault was evaluated. Reinforced structures performed better than unreinforced soil retaining wails. The failure cases were highlighted and the cause of failure was identified. The lack of seismic design consideration could be a major cause of failure. The compound failure mode, the inertia force of the blocks, and the connection stiffness and strength relative to the large dynamic earth pressure, were among major items that would warrant further design consideration. (C) 2001 Elsevier Science Ltd. All rights reserved.
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