| 大型直剪仪试验的尺寸效应 |
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| 引用本文： | 周志刚,李文胜,宋勤德.大型直剪仪试验的尺寸效应[J].长沙交通学院学报,1999,15(1):47-49. |
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| 作者姓名： | 周志刚 李文胜 宋勤德 |
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| 作者单位： | 长沙交通学院,路桥工程系,湖南,长沙,410076 |
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| 基金项目： | 交通部行业联合攻关项目;; |
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| 摘 要： | 在试验结果的基础上，采用轴对称有限元分析对大型直剪仪的尺寸效应进行了分析。结果表明，剪力盒壁摩擦力将会影响试验土样中的应车分布和剪切面上的正压应力值。在利用大型直剪仪进行试验时，应尽可能排除摩擦力的影响。
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| 关 键 词： | 直剪 土工格栅 摩擦 有限元 |
| 修稿时间： | 1997-09-03 |
The effect of size on tests by large direct shear apparatus |
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| ZHOU Zhi-gang,LI Wen-sheng,SONG Qin-de.The effect of size on tests by large direct shear apparatus[J].Journal of Changsha Communications University,1999,15(1):47-49. |
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| Authors: | ZHOU Zhi-gang LI Wen-sheng SONG Qin-de |
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| Abstract: | Based on
the results of tests, the effects of the size of large direct shear apparatus are analysed
through axial symmetrical finite element method. The results show that the frictions
caused by the wall of shear box will influence the distributions of stresses in specimens
and the normal pressure stresses on the shear plane. The influences of frictions should be
eliminated during tests through large direct shear apparatus. |
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