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| 软化岩土介质的应变局部化研究进展--意义·现状·应变梯度 | |
| 引用本文： | 赵冰,李宁,盛国刚.软化岩土介质的应变局部化研究进展--意义·现状·应变梯度[J].岩土力学,2005,26(3):494-499. |
| 作者姓名： | 赵冰 李宁 盛国刚 |
| 作者单位： | 1. 西安理工大学,岩土工程研究所,陕西,西安,710048;长沙理工大学,桥梁与结构工程学院,湖南,长沙,410076 2. 西安理工大学,岩土工程研究所,陕西,西安,710048;中国科学院寒区与旱区环境与工程研究所,甘肃,兰州,730000 3. 长沙理工大学,桥梁与结构工程学院,湖南,长沙,410076 |
| 基金项目： | 湖南省教育厅资助项目(No.02q1010)。 |
| 摘 要： | 如何准确描述岩土的应变软化已是岩土力学研究的难题,而岩土介质的软化性状与应变局部化的产生和发展直接相关。阐述了研究岩土材料的软化性状的意义以及岩土材料的软化与应变局部化的关系。从实验研究、理论建模和数值模拟三方面综述应变局部化在岩土力学中的研究现状;说明应变局部化发生时考虑应变梯度的必要性;就应变局部化研究在岩土力学中的发展趋势提出初步看法。 |
| 关 键 词： | 软化 岩土介质 应变局部化 应变梯度 趋势 |
| 文章编号： | 1000-7598-(2005)03-0494-06 |
| 收稿时间： | 2004-03-02 |
| 修稿时间： | 2004年3月2日 |
Recent development of strain localization of softening geo-materials |
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| ZHAO Bing,LI Ning,SHENG Guo-gang.Recent development of strain localization of softening geo-materials[J].Rock and Soil Mechanics,2005,26(3):494-499. | |
| Authors: | ZHAO Bing LI Ning SHENG Guo-gang |
| Institution: | 1. Research Institute of Geotechnical Engineering, Xi’an University of Technology, Xi’an 710048, China; 2. College of Bridge and Structure Engineering, Changsha University of Science and Technology, Changsha 410076, China; 3.Cold and Arid Regions Environmental and Engineering Institute, CAS, Lanzhou 730000,China |
| Abstract: | It is difficult to describe the strain softening of geo-materials. In order to analyze softening mechanism of geo-materials in essence, it is necessary to combine the researches of softening mechanism with the researches of strain localization evolvement. The developments of strain localization researches in geotechnical mechanics, such as experimental researches, theoretical modeling and numerical simulations, have been reviewed. When strain localization happened, the necessity to consider the strain-gradient was illuminated. Some primary ideas about the trends of strain localization researches in geotechnical mechanics were put forward. |
| Keywords: | softening geo-materials strain localization strain-gradient trends |
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