Study on Damage Constitutional Relation and Attenuation Law of Elastic Wave in Fractured Rock Mass
- DOI
- 10.2991/aeece-15.2015.134How to use a DOI?
- Keywords
- High stress, Similarity theory, Triaxial compression, Wave velocity, Confining pressure
- Abstract
Fissures in the high stress mass of deep buried had a great influence on mechanical properties and wave velocity of rock mass. Based on similarity theory, Rock like materials simulated deep buried marble of Jinping-II Hydropower Station. Under different fracture and different confining pressure, the triaxial compression test could be used in the model of the specimen. Collected the data timely and plotted the stress-strain curve and the stress-acoustic curve in the process of tests, then the model test-piece was equivalent to transversely isotropic material with multi group uniform distribution crack, established the damage constitutive relation which contains the acoustic wave velocity variable. The research achievement shows: In the triaxial compression test, the wave velocity increases with the axial compression when confining pressure is constant, the text advanced the speed by the first fast then slow way, the wave velocity increases with the axial compression is constant; the angle of fracture has a significant influence on acoustic wave velocity and attenuation of the energy of acoustic wave, under the same stress state, the larger the angle between the propagate direction of velocity and the fracture, the attenuation of sonic energy is more obvious, and the smaller the acoustic velocity.
- Copyright
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Hang Zhao AU - Xinping Li AU - Qian Dong PY - 2015/09 DA - 2015/09 TI - Study on Damage Constitutional Relation and Attenuation Law of Elastic Wave in Fractured Rock Mass BT - Proceedings of the International Conference on Advances in Energy, Environment and Chemical Engineering PB - Atlantis Press SP - 673 EP - 676 SN - 2352-5401 UR - https://doi.org/10.2991/aeece-15.2015.134 DO - 10.2991/aeece-15.2015.134 ID - Zhao2015/09 ER -