期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：108
期号：4
页码：042021
DOI：10.1088/1755-1315/108/4/042021
语种：English
出版社：IOP Publishing
摘要：To study the influence of smooth and rough joint on stress wave propagation in rock mass and the mechanical properties of jointed rock, experimental research was carried out using Split Hopkinson Pressure Bar. The influence of fractal dimension of rock joints on stress wave propagation was studied. The results showed that the transmission coefficients and equivalent stiffness of the smooth joints rock specimen reduce very little compared to the intact rock specimen, which indicates that the smooth joints have very little influence on stress wave propagation in the experiment. The transmission coefficient and equivalent stiffness of joint rock specimen were influenced by the difference of joint forms. The bigger of the joint roughness (fractal dimension) are, the smaller of the transmission coefficient and stiffness of the rock joint specimen.
