Shaking table testing of geofoam seismic buffers

被引：112
|
作者：
Bathurst, Richard J.
Zarnani, Saman
Gaskin, Andrew
机构：
[1] Royal Mil Coll Canada, Dept Civil Engn, Queens RMC, Geoengn Ctr, Kingston, ON K7K 7B4, Canada
[2] Queens Univ, Dept Civil Engn, Queens RMC, Geoengn Ctr, Kingston, ON K7L 3N6, Canada
[3] Ontario Power Generat Inc, Bowmanville, ON L1C 3Z8, Canada
来源：
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING | 2007年 / 27卷 / 04期
基金：
加拿大自然科学与工程研究理事会;
关键词：
shaking table; geofoam; seismic; buffer; retaining wall; expanded polystyrene (EPS);
D O I：
10.1016/j.soildyn.2006.08.003
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
The paper describes the experimental design and results of tests used to investigate the use of compressible EPS (geofoam) seismic buffers to attenuate dynamic loads against rigid retaining wall structures. The tests were carried out using 1-m-high models mounted on a large shaking table. Three different geofoam buffer materials retaining a sand soil were tested under idealized dynamic loading conditions. The results of these tests are compared to a nominal identical structure without a seismic buffer. The test results demonstrate that the reduction in dynamic load increased with decreasing seismic buffer density. For the best case reported here, the maximum dynamic force reduction was 31% at a peak base acceleration of 0.7g. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：324 / 332
页数：9
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