| 裂土裂隙演化过程试验研究 |
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| 引用本文： | 马佳,陈善雄,余飞,冯美果.裂土裂隙演化过程试验研究[J].岩土力学,2007,28(10):2203-2208. |
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| 作者姓名： | 马佳 陈善雄 余飞 冯美果 |
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| 作者单位： | 1.中国科学院武汉岩土力学研究所 岩土力学与工程国家重点实验室，武汉 430071；2.华中科技大学 土木工程与力学学院，武汉 430074 |
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| 摘 要： | 裂土的裂隙是影响其工程性质的重要因素。为研究土体裂隙在外界环境变化条件下的演化过程，设计了一套精确控制湿度的试验装置，再现了裂土在脱湿情况下裂隙产生、传播、扩展的过程。对试验结果进行了理论分析，总结了试验中裂土裂隙出现、传播、扩展的规律。研究结果有助于加深对土体裂隙变化物理过程的认识，为处理工程问题提供思路。
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| 关 键 词： | 裂土 裂隙 形成 传播 扩展 非饱和土理论 裂隙扩展判据 |
| 文章编号： | 1000-7598-（2007）10-2203-06 |
| 收稿时间： | 2006-10-08 |
| 修稿时间： | 2006-10-08 |
Experimental research on crack evolution process in fissured clay |
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| MA Jia,CHEN Shan-xiong,YU Fei,FENG Mei-guo.Experimental research on crack evolution process in fissured clay[J].Rock and Soil Mechanics,2007,28(10):2203-2208. |
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| Authors: | MA Jia CHEN Shan-xiong YU Fei FENG Mei-guo |
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| Institution: | 1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. College of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | The cracks of fissured soils are important factors that affect the soil engineering properties.To study the process of crack evolution under changing environmental conditions,an experimental device that can precisely control the humidity is designed;and the process of crack formation,propagation and extending reappears by using this device.The experimental results have been theoretically analyzed;and the disciplinarians of crack emergence,propagation and extending in the experiment have been educed.The research results could do help to the comprehension of the physical changing process of soil cracks and provide considerations to deal with the engineering problems. |
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| Keywords: | fissured clay cracks formation propagation expand theory of unsaturated soils criterion of crack extending |
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