The Dynamic Responses of Geo-Materials During Fracturing and Slippage

The dynamic responses such as acceleration, velocity and displacement of geo-materials during fracturing and slippage have not been studied in the fields of geo-engineering and geo-science, as measurement, monitoring and logging technologies were not so advanced in the past. By virtue of the recent advances in these technologies, the authors have been carrying out experiments on geo-materials ranging from very soft materials such as clay to hard rocks such as siliceous sandstone by using different loading schemes and loading frames, as well as rock discontinuities with different surface roughness characteristics. This study describes the experiments and experimental results of the acceleration, velocity and displacement responses of geo-materials during fracturing and slippage under laboratory conditions. The velocity and displacement responses are obtained through the erratic pattern screening integration technique proposed by the authors. We further discuss their implications in geo-engineering and earthquake engineering in relation to permanent surface deformations.