| 动扭剪荷载作用下非饱和黄土动力特性试验研究 |
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| 引用本文： | 田堪良,张慧莉,张伯平,骆亚生.动扭剪荷载作用下非饱和黄土动力特性试验研究[J].岩石力学与工程学报,2004,23(24):4151-4155. |
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| 作者姓名： | 田堪良 张慧莉 张伯平 骆亚生 |
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| 作者单位： | 1. 河海大学岩土工程研究所,南京,210098;西北农林科技大学水利与建筑工程学院,杨凌,712100
2. 西北农林科技大学水利与建筑工程学院,杨凌,712100 |
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| 摘 要： | 通过对黄土的动扭剪试验研究了非饱和黄土的动孔隙压力特性、动强度特性以及振陷变形特性。非饱和黄土在动扭剪试验过程中，随着轴向变形的发展，孔隙气压力逐渐上升，而孔隙水压力则基本保持不变或后期略有升高，且非饱和黄土和饱和黄土的强度及变形特性存在明显差异；同时，分析了含水量、固结应力和固结比对黄土动力特性的影响。
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| 关 键 词： | 土力学 非饱和黄土 孔隙压力 动强度 |
| 文章编号： | 1000-6915(2004)24-4151-05 |
| 收稿时间： | 2004-3-30 |
| 修稿时间： | 2004-4-19 |
AN EXPERIMENTAL STUDY ON DYNAMIC PROPERTIES OF UNSATURATED LOESS UNDER DYNAMIC TORSIONAL SHEAR |
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| Tian Kanliang,Zhang Huili,Zhang Boping,Luo Yasheng.AN EXPERIMENTAL STUDY ON DYNAMIC PROPERTIES OF UNSATURATED LOESS UNDER DYNAMIC TORSIONAL SHEAR[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(24):4151-4155. |
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| Authors: | Tian Kanliang Zhang Huili Zhang Boping Luo Yasheng |
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| Affiliation: | Tian Kanliang1,2,Zhang Huili2,Zhang Boping2,Luo Yasheng2 |
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| Abstract: | Some aspects such as the behaviors of pore pressure,dynamic strength,and dynamic deformation of unsaturated loess are studied with the dynamic torsional shear test of loess. The pore air pressure gradually rises with the development of axial strain in the process of the dynamic torsional shear test of loess,but the pore water pressure essentially keeps constant or goes up a little in the latter stage. There are some considerable differences in strength and strain between unsaturated loess and saturated loess. The effects of water content,consolidation pressure,and consolidation pressure ratio on the dynamic characteristics of loess are also analyzed. |
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| Keywords: | soil mechanics unsaturated loess pore pressure dynamic strength |
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