A5039239214- Methane Hydrates and Related Phenomena
- Arctic and Antarctic ice dynamics
- Climate change and permafrost
- Geological Studies and Exploration
- Seismic Imaging and Inversion Techniques
- Ultrasonics and Acoustic Wave Propagation
- Seismic Waves and Analysis
Qinghai University
2023
SUMMARY Based on the propagation theory of elastic waves in three-phase frozen poroelastic media and single-phase media, energy transmission problem a plane harmonic P-wave incident at planar interface between medium is studied. According to boundary conditions interface, analytical expressions reflection coefficients ratios transmitted reflected are derived. The relationship angle, frequency wave, cementation parameters, porosity, saturation contact parameters investigated. results show...
Based on the propagation theory of elastic waves in frozen poroelastic media and media, a theoretical model saturated soil solid bedrock is established. The lying an modeled as porous material containing three-phase medium that contains two solids (soil skeleton ice particles) compressible viscous fluid. Helmholtz vector decomposition boundary conditions interface, expressions amplitude ratio displacement plane S 1 wave incident from to interface are obtained. effects incidence angle,...