... numerical simulation is still the most popular method for seismic design of underground infrastructure, however it is based on the plane-strain model and assumes the vertical incidence of seismic waves. In fact, the propagation direction of seismic wave is arbitrary and the effect of excitation direction...

... a new faulting in the near field of an underground opening. Both fault slippage and faulting generate seismic waves that propagate from the hypocenter outward in the rock mass. It was observed that rockbursts are induced by a seismic event when the seismic waves arrive at the free surface...

... by using the growth rate of a. This procedure provides a new idea for the research of blasting cumulative damage theory. Engineering wave test particle vibration velocity field test seismic wave rock mass characteristic cumulative damage Upstream Oil & Gas wave velocity porosity...

... measurement fracture frequency dissipation threshold propagation ci threshold stiffness Reservoir Characterization attenuation seismic wave amplitude wave propagation transducer mechanics ARMA 17-820 Active Ultrasonic Monitoring of Rocks Under Uniaxial Compression Shirole, Deepanshu Colorado...

...-shear failure mode in seismic dynamic loading is also researched at last. 1. INTRODUCTION Upstream Oil & Gas seismic wave rock slope rock mass amplification coefficient failure mode stability dynamic response analysis slope crest Earthquake boundary jointed rock slope...

... behavior of intact rock, discontinuities, and ground support; source mechanism; the characteristics of the ground motion and the changes that occur as the wave propagates through the rock mass (path effects); and interactions between the seismic waves, excavation, and ground support. machine learning...

... upstream oil & gas geophy attenuation characteristic reservoir rock quality factor salinity permeability seismic wave reservoir characterization saturation condition ARMA 15-610 Attenuation of seismic waves in brine-saturated Hawkesbury sandstone: An experimental study Rathnaweera, T.D...

...-field PPV prediction, where the arrival time delay, among small incremental charges pertaining to the a single blasthole, have been incorporated. Reservoir Characterization particle velocity peak particle velocity PPV Artificial Intelligence machine learning seismic wave th packet...

... ABSTRACT: A laboratory study is undertaken to explore the potential for seismic waves to drive bubble nucleation in groundwater formations. A Hele-Shaw cell containing a supersaturated carbonic acid solution is subjected to mechanical pressure perturbations of varying magnitude...

..., fast, but expensive tunnel excavation projects using TBMs. Seismic waves offer one of the most effective means for exploring and mapping the rock mass in 3D. However, specifically when a single tunnel is being excavated, the direct and quick access to the ground for conducting seismic surveys...

... ABSTRACT: The special reflection phenomenon of seismic waves on the large-scale underground water-bearing body has been discovered from a seismic method advanced prediction. According to the classical theory of seismic wave reflection and transmission, this phenomenon has been explained...

... ABSTRACT: Reflection and transmission of seismic waves (stress waves) by a compliant fracture depends on the stress to which the fracture is subjected. Usually, an increase in wave transmission (and a decrease in reflection) can be related to an increasing normal stress on the fracture...

... employed the Three-dimensional Reflector Tracing (TRT?) technique to enhance resolution of the ground images between neighboring panels. The technique uses a source and a set of receivers in the same borehole (Single- Hole TRT?) for detecting seismic waves reflected from anomalies in the ground due...

... ABSTRACT: In the case the epicenter of an earthquake is located very close to a densely populated urban area, extensive damage may be caused in that area by the high frequency components of the seismic waves that interact with the structures before attenuation. From the structural damage...

... preventing rock falls and keeping the excavation stable and usable. Reservoir Characterization hydraulic fracturing complex reservoir Upstream Oil & Gas node displacement Schoenberg seismic wave normalized slip stiffness fractured excavation slip model hoop stress excavation slip...

... ABSTRACT: Two-phase particle composite samples modeling heterogeneous geomaterials with various inclusion size and content were made to investigate the effects of particle size and content on the amplitudes and velocities of seismic waves. The results of the tests suggest that seismic...

... planes, faults, and fractures in the rock mass. Thus it is important to understand how these features affect a seismic wave propagating through a rock mass. Seismic refraction studies (Scott et al. 1968, Crampin et al. 1980), and crosshole seismic studies (Grujic 1974, O'Donoghue et al. 1974) have...

..., is the behaviour of the cavern exposed to seismic waves generated by earthquakes as well as the behaviour of the rock during disruptive events such as rock bursts. Obviously, the potential of rock disruption is important in the design of the containers and the manner in which they are placed in the disposal vaults...

... ABSTRACT The response of a single-degree-of-freedom linear structure to seismic waves is examined. The alterations of the seismic waves due to the numerous random reflections, refractions and attenuations occurring during their propagation through complex rock and soil formations...

... borehole probe emitter wave velocity seismic wave borehole transit time receiver application amplitude Probe Amplifier apparatus rock mass waveform instrumentation acoustic cross-borehole apparatus interface transducer ACOUSTIC CROSS-BOREHOLE APPARATUS FOR DETER_MINING IN SITU ELASTIC...