| 粒状体直剪试验的数值模拟与微观考察 |
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| 引用本文： | 刘斯宏,徐永福.粒状体直剪试验的数值模拟与微观考察[J].岩石力学与工程学报,2001,20(3):288-288. |
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| 作者姓名： | 刘斯宏 徐永福 |
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| 作者单位： | 名古屋工业大学 名古屋 466-8555 日本 |
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| 摘 要： | 摘要 用离散单元法模拟了粒状体的直剪试验。基于数值模拟结果, 提出了修正剪胀试样与剪切盒内壁间的摩擦对剪切强度影响的方法, 估算了直剪试验试样的整体应变, 并探讨了剪切面上宏观应力2应变量与粒子的微观结构量之间的关系。
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| 关 键 词： | 粒状体离散单元法直剪试验微观结构 |
| 文章编号： | 1000-6915(2001)03-0288-05 |
| 收稿时间： | 2000-10-23 |
| 修稿时间： | 2000年10月23 |
NUMERICAL SIMULATION FOR A DIRECT BOX SHEAR TEST ON GRANULAR MATERIAL AND MICROSCOPIC CONSIDERATION |
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| Liu Sihong,Xu Yongfu.NUMERICAL SIMULATION FOR A DIRECT BOX SHEAR TEST ON GRANULAR MATERIAL AND MICROSCOPIC CONSIDERATION[J].Chinese Journal of Rock Mechanics and Engineering,2001,20(3):288-288. |
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| Authors: | Liu Sihong Xu Yongfu |
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| Abstract: | A direct box shear test on granular material is successfully simulated by means of distinct element method. Based on the simulation results, a method is proposed to consider the effect of frictional resistances between the upper shear box and the sample on the measured shear strength when the sample is dilated during shearing. The overall strains in the sample are evaluated. The macro stress strain relations on the shear plane are related to the micro structural quantities of particles comprising the sample. |
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| Keywords: | granular material distinct element method direct box shear test microscopic structure |
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