Strength properties of the jointed rock mass medium under dynamic cyclic loading |
| |
Authors: | LI Ning Chen Wenling ZHANG Ping |
| |
Affiliation: | 1. Xi' an University of Technology, Xi' an 710048, China;Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China 2. Chang' an University, Xi' an 710048, China 3. Xi' an University of Technology, Xi' an 710048, China |
| |
Abstract: | The dynamic strength properties of the intermittently jointed mediums are studied using model test to investigate the jointed rock mass behavior under dynamic cyclic load. The model test results demonstrate that (i) the dynamic strength of the jointed samples increases with the loading frequency and decreases with the loading loops; (ii) the dynamic residual strength will not be zero like the static residual strength under one-axle loading condition; (iii) the dynamic strength changes greatly with the joint density and joint angle, and it differs from that of the static strength which reaches the lowest at an angle of 45° + ψ/2, while in the dynamic case, the lowest strength is at the angle of 45°. |
| |
Keywords: | jointed samples model test dynamic cyclic loading dynamic strength |
本文献已被 万方数据 等数据库收录! |
| 点击此处可从《自然科学进展(英文版)》浏览原始摘要信息 |
|
点击此处可从《自然科学进展(英文版)》下载全文 |
|