Dual-Mesh Three Characteristic Lines Method for Stress Wave Propagation Through a Microdefected Rock Mass with a Thin-Layer Filled Macrojoint

2021 ◽  
Author(s):  
L. F. Fan ◽  
M. Wang ◽  
X. L. Du
Keyword(s):  
Wave Propagation ◽  
Rock Mass ◽  
Thin Layer ◽  
Stress Wave ◽  
Stress Wave Propagation ◽  
Characteristic Lines ◽  
Dual Mesh

Combined Effect of Joint Contact Area and Temperature on Stress Wave Propagation in Granite Rock Mass

2020 ◽  
Vol 32 (12) ◽  
pp. 04020367
Author(s):  
Zhiliang Wang ◽  
Shuailong Jia ◽  
Nuocheng Tian ◽  
Feng Xiong ◽  
Zhitang Lu
Keyword(s):  
Wave Propagation ◽  
Rock Mass ◽  
Stress Wave ◽  
Contact Area ◽  
Combined Effect ◽  
Stress Wave Propagation ◽  
Granite Rock ◽  
Joint Contact

Stress Wave Propagation Across a Rock Mass with Two Non-parallel Joints

2016 ◽  
Vol 49 (10) ◽  
pp. 4023-4032 ◽  
Author(s):  
S. B. Chai ◽  
J. C. Li ◽  
Q. B. Zhang ◽  
H. B. Li ◽  
N. N. Li
Keyword(s):  
Wave Propagation ◽  
Rock Mass ◽  
Stress Wave ◽  
Stress Wave Propagation

NUMERICAL MANIFOLD METHOD (NMM) SIMULATION OF STRESS WAVE PROPAGATION THROUGH FRACTURED ROCK MASS

2013 ◽  
Vol 05 (02) ◽  
pp. 1350022 ◽  
Author(s):  
L. F. FAN ◽  
X. W. YI ◽  
G. W. MA
Keyword(s):  
Wave Propagation ◽  
Rock Mass ◽  
Stress Wave ◽  
Fractured Rock ◽  
Displacement Discontinuity ◽  
Stress Wave Propagation ◽  
Numerical Manifold Method ◽  
Elastic Media ◽  
Fractured Rock Mass ◽  
Numerical Manifold

The present work is devoted to the simulation of stress wave propagation through fractured elastic media, such as rock mass, by using the numerical manifold method (NMM). A single fracture is used to verify the capability and accuracy of the NMM in modeling fractured rock mass. The frequency-dependence on stress wave transmission across a fracture is analyzed. The influence of the fracture specific stiffness on the wave attenuation and effective wave velocity is discussed. The results from the NMM have a good agreement with those obtained from a theoretical displacement discontinuity method (DDM). Taking the advantage that the NMM is able to simulate highly fractured elastic media with a consistent mathematical cover system, a numerical example of stress wave propagation through a fractured rock mass with numerous inherent fractures is presented. It is showed that the results are reasonable and the NMM has a high efficiency in simulating stress wave propagation through highly fractured rock mass. A safety assessment of a tunnel under blast is conducted by using the NMM subsequently. The potential application of the NMM to a more complex fractured rock mass is demonstrated.

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