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SEISMIC DESIGN OF GRAVITY
RETAINING WALLS
| 题名： | SEISMIC DESIGN OF GRAVITY RETAINING WALLS |
| 作者： | Robert V. Whitman, Samson Liao |
| 关键词： | Retaining walls—design and construction (LC) Richards-Elms retaining wall design method (WES) . |
| 摘要： | The report discusses the seismic design of gravity walls retaining granular backfill without pore water. The general features of behavior are illustrated by field experiences, results from laboratory model tests and from theoretical analyses. Both the conventional method of design and the Richards-Elms method, based upon an analogy to a sliding block, are reviewed. A shortcoming of the sliding block analogy is discussed, and corrections obtained using a two-block model are presented. Several sources of uncertainty are examined in detail: the random nature of ground motions, uncertainty in resistance parameters, and model errors. Including the important influence of deformability in the backfill. All of these results are then combined to develop a probabilistic method for predicting seismically induced displacements of walls and an improved version of the Richards-Elms method of design. The risk that walls designed by the conventional method might experience excessive displacements is analyzed. |
| 报告类型： | 科技报告 |
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