STUDY ON MICROSTRUCTURE VARIATION OF DIFFERENT AREAS OF FRACTURED ROCK UNDER TRIAXIAL COMPRESSION WITH CHEMICAL CORROSION AND PERMEATION

摘要：

The physical and mechanical properties of different areas of fractured rock are different under external loading,so it has important significance to study the microstructure variation of different areas of fractured rock.Real-time computerized tomography (CT) scanning experiments in the failure process of sandstone specimens under triaxial compression with chemical corrosion and permeation are conducted.Based on the test results of standard deviation of CT number,the characteristics of microstructure variation of different areas of fractured rock effected by chemical corrosion and permeation are analyzed.The research results indicate that the anisotropy degree is increased under permeation and water pressure environment.Whether under penetration or under without penetration environment,the change rule of standard deviation rates in the level of crack tip has large difference with other scan layers.

关键词： CT scanning and triaxial compression test chemical corrosion and permeation microstructure standard deviation sandstone

作者: W.X.Ding

作者单位: Luoyang Institute of Science and Technology,Luoyang,Henan 471023,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 865-868

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）