Statistical Macro- and Meso-damage Study On Marble Under Uniaxial Compression Based On SEM Equipment

摘要：

A meso-mechanical testing scheme based on scanning electron microscopy(SEM) is developed to carry out the experiment of microfracturing process of rocks. The microfracturing process of the sample on surrounding rock in immerged Long-big tunnel in Jinping Cascade II Hydropower Station under uniaxial compression is recorded by using the testing scheme. According to digital image processing theory, the meso-structural information of rock microfracture such as length, angle, area, etc are obtained from SEM images. Then, the meso-structural information of microfracturing process under uniaxial compress is analysized and the distribution regularities of microfracture parameters are generalized extreme value distribution with variable parameters. The process was described of the damage from the perspectives of macro-and micro-scale under the uniaxial compression loads.

关键词： Statistics Meso-damage Micro-damage Marble

作者: Xiaohui Ni Xiaojuan Li

作者单位: Department of Civil Engineering, Shaoxing University, Shaoxing,Zhejiang,312000,China Geotechnical Research Institute, Hohai University, Nanjing,Jiangsu,210098,China

会议类型: 国际会议

会议名称: 2011 International Conference on Vibration,Structural Engineering and Measurement(2011年振动、结构工程与测量国际会议 ICVSEM 2011)

会议地点: 上海

会议语种:英文

页码: 1513-1516

在线出版日期: 2011-10-21（万方平台首次上网日期，不代表论文的发表时间）