准平面应变条件下泥砂岩变形局部化的试验研究

英文篇名：Experimental research on deformation localization of mud-sand stone in quasi-plane strain state
中文刊名：岩土力学
英文刊名：Rock and Soil Mechanics
作者：尹光志 ; 岳顺 ; 张东明 ; 王浩
英文作者：YIN Guang-zhi 1 ; 2 ; YUE Shun 1 ; ZHANG Dong-ming 1 ; 2 ; WANG Hao 3 (1.College of Resources and Environmental Science ; Chongqing University ; Chongqing 400044 ; China ; 2.The key Laboratory of Exploitation of Southwest Resources&Environmental Disaster Control Engineering of Ministry of Education ; Chongqing University ; Chongqing 400044 ; China ; 3.College of Mathematics and Physics ; Chongqing University ; Chongqing 400044 ; China)
中文关键词：准平面应变 ; 变形局部化 ; 泥砂岩
英文关键词：quasi-plane strain ; deformation localization ; mud-sand stone
出版日期：2008-03-10
机构：重庆大学资源及环境科学学院,重庆大学资源及环境科学学院,重庆大学资源及环境科学学院,重庆大学数理学院重庆400044 重庆大学西南资源开发及环境灾害控制工程教育部重点试验室,重庆400044,重庆400044,重庆400044 重庆大学西南资源开发及环境灾害控制工程教育部重点试验室,重庆400044,重庆400044
年：2008
期：03
出版单位：岩土力学

摘要

自行研制了准平面应变试验装置,利用该装置在不同加载速度和不同含水率条件下对重庆红色泥砂岩的变形局部化进行了试验研究,并利用弹性波方法测定了变形局部化的起动时间。结果表明,在平面应变条件下,泥砂岩的局部化带倾角与加载速率之间存在类对数关系,研究结果也证明了局部化起动时间受加载速度与含水率的影响较大。
A quasi-plane strain experimental device is designed.This device is implemented to analyze deformation localization phenomenon of Chongqing red mud-sand stone in quasi-plane state.Some specimens are tested in various loading speeds;and some are researched with different water contents.During the experiment,the onset of deformation localization has been monitored by elastic wave.The results show that,in quasi-plane strain state,there is a logarithm-like relation between the angle of localization band and loading speed.It is also shown that the water content could impact on the onset of deformation localization.

引文

[1]赵纪生,陶夏新,师黎静,等.饱和多孔介质材料的应变局部化萌生条件[J].岩土力学,2004,25(5):749-754.ZHAO Ji-sheng,TAO Xia-xin,SHI Li-jing,et al.Onset condition of strain localization in saturated porous media[J].Rock and Soil Mechanics,2004,25(5):749-754.
    [2]钱建固,黄茂松.土体应变局部化现象的理论解析[J].岩土力学,2005,26(6):432-436.QIAN Jian-gu,HUANG Mao-song.An analytical solution for criterion of onset of strain localization of soils[J].Rock and Soil Mechanics,2005,26(6):432-436.
    [3]尹光志,鲜学福,王宏图.岩石在平面应变条件下剪切带的分叉分析[J].煤炭学报,1999,24(4):364-367.YIN Guang-zhi,XIAN Xue-fu,WANG Hong-tu.The bifurcation analysis of shear band of rock under the plane strain condition[J].Journal of China Coal Society,1999,24(4):364-367
    [4]张启辉,赵锡宏.黏性土局部化剪切带变形的机理研究[J].岩土力学,2002,23(1):31-35.ZHANG Qi-hui,ZHAO Xi-hong.Study on mechanism of localized shear band formation in clay[J].Rock and Soil Mechanics,2002,23(1):31-35.
    [5]陈刚,潘一山.单轴压缩下岩石应变局部化的应变梯度塑性解[J].岩土力学,2004,25(5):694-699.CHEN Gang,PAN Yi-shan.Analytic study on strain localization of rock under uniaxial compression by strain gradient plasticity theory[J].Rock and Soil Mechanics,2004,25(1):694-699.
    [6]马瑞,卢民杰,杨晓东.不同温压条件下弹性波在岩石中传播速度的试验研究[J].地震地质,1996(3):259-265.MA Ri,LU Min-jie,YANG Xiao-dong.Experiment study about elastic wave velocities in rocks under different pressures and temperatures[J].Seismology and Geology,1996(3):259-265.