| 土颗粒破碎耗能对罗维剪胀模型的修正 |
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| 引用本文： | 迟世春,贾宇峰. 土颗粒破碎耗能对罗维剪胀模型的修正[J]. 岩土工程学报, 2005, 27(11): 31-34 |
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| 作者姓名： | 迟世春 贾宇峰 |
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| 作者单位： | 大连理工大学土木水利学院及海岸与近海工程国家重点实验室；大连理工大学土木水利学院及海岸与近海工程国家重点实验室 辽宁大连116024；辽宁大连116024； |
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| 基金项目： | 国家自然科学基金资助项目(50479057) |
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| 摘 要： | 采用Hardin建议的公式来度量颗粒破碎及其耗能。根据罗维最小能比原理,推导得到破碎修正的屈服函数微分方程。对围压300kPa时,进行了微分方程的数值积分,得到了屈服面图形。与原始罗维剪胀模型相比,经过颗粒破碎修正的罗维剪胀模型具有低剪胀性等明显优点。
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| 关 键 词： | 颗粒破碎 破碎耗能 剪胀 屈服函数 |
| 文章编号： | 1000-4548（2005）11-1266-04 |
| 收稿时间： | 2005-01-27 |
| 修稿时间： | 2005-01-27 |
Rowe’s stress-dilatancy model modified for energy dissipation of particle breakage |
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| CHI Shi-chun,JIA Yu-feng. Rowe’s stress-dilatancy model modified for energy dissipation of particle breakage[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(11): 31-34 |
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| Authors: | CHI Shi-chun JIA Yu-feng |
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| Affiliation: | State Key Lab of the Coastal and Offshore Engineering Dalian University of Technology Dalian 116024 China |
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| Abstract: | Hardin’s functions were applied to quantify particle breakage and its energy dissipation.A differential equation of yield function was derived,which was amended for particle breakage according to Rowe’s minimum energy ratio principle.As for confining pressure of 300 kPa,numerical integration of the differential function was employed and yield surface was obtained.Compared with the traditional Rowe’s stress-dilatancy model,the Rowe’s stress-dilatancy model amended for particle breakage is of some obvious advantages such as lower dilatancy,etc. |
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| Keywords: | particle breakage breakage energy stress-dilatancy relationship yield function |
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