| 塑料土工格栅加筋土结构的振动台试验研究 |
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| 引用本文： | 周亦唐,钟国强,俞进,赵惠敏,葛晓旭.塑料土工格栅加筋土结构的振动台试验研究[J].四川建筑科学研究,2004,30(2):45-47. |
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| 作者姓名： | 周亦唐 钟国强 俞进 赵惠敏 葛晓旭 |
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| 作者单位： | 1. 昆明理工大学建筑工程学院,云南,昆明,650224
2. 深圳市道桥管理处,广东,深圳,518000 |
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| 基金项目： | 云南省应用自然科学基金资助项目(2001E0022M) |
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| 摘 要： | 对塑料土工格栅加筋土结构的缩尺比例模型进行了振动台试验研究。试验过程中，采用两组试验模型，一组测定筋材的动应力应变；一组测定土筋间的动似摩擦系数。试验结果表明：塑料土工格栅筋材在地震作用下最大动拉应力的分布与静拉应力的分布沿筋材的埋深大致相同，只是应力的值大小不同；地震作用下土筋间的动似摩擦系数是随地震加速度的增加而减小。据此，提出了加筋土结构在地震区的设计建议。
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| 关 键 词： | 土工格栅 加筋土 振动台 模型试验 地震作用 静拉应力 |
| 文章编号： | 1008-1933(2004)02-0045-03 |
| 修稿时间： | 2003年7月8日 |
Experimental research for the geogrids on shaking table |
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| ZHOU Yi-tang,ZHONG Guo-qiang,YU Jin,ZHAO Hui-min,GE Xiao-xu.Experimental research for the geogrids on shaking table[J].Building Science Research of Sichuan,2004,30(2):45-47. |
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| Authors: | ZHOU Yi-tang ZHONG Guo-qiang YU Jin ZHAO Hui-min GE Xiao-xu |
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| Affiliation: | ZHOU Yi-tang~1,ZHONG Guo-qiang~2,YU Jin~1,ZHAO Hui-min~1,GE Xiao-xu~1 |
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| Abstract: | In this paper, the experimental research on geogrids reinforced earth has been carried out using the scaled miniature models on the shaking table. There are two groups in this test, one group for measuring stress and strain of geogrids, another for measuring the contact efficient (CE) due to interaction between soil and geogrids. The test result shows that the distributions of the maximum stresses along deepth in both dynamic test and static test are the same approximately, but the both values of stresses are different. The contact efficient (CE) is reduced with the increase of the seismic acceleration. The test result is suggested in the design in seismic district. |
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| Keywords: | geogrids reinforced earth shaking table model test seismic effect |
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