Seismic waves
eng and seismic waves
... Rayleigh waves cause a rolling motion —like ocean waves. Slowest of the seismic waves (travel at around 3 km/s)[r] ...
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Simulation of Seismic Waves
... However, most existing engineering simulations are based on Fourier analyses, which is for stationary random processes, while seismic waves are non-stationary random [r] ...
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Numerical modeling of seismic waves by discontinuous spectral element methods★
... of seismic waves based on DGSE methods on hybrid hexahedral/tetrahedral ...large-scale seismic events in three-dimensional complex media: from far-field to near-field including soil-structure ...
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Attenuation in the mantle, from spectral analysis of short-period seismic waves
... If the earth were perfectly elastic, seismic waves, whatever their origin, would continue to vibrate indefinitely. Because the earth is not perfectly elastic, vibrational energy is progressively dissipated. ...
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Mathematical Modeling of G type Seismic Waves in a Homogeneous Layer over a Transversely Isotropic Half-space under Initial Stress
... Abstract— In this paper an attempt has been made to study the propagation of G type seismic waves in homogeneous layer overlying an elastic half space under initial stress. Here we have taken constant ...
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Relationship between displacement and velocity amplitudes of seismic waves from local earthquakes
... Relationship between displacement and velocity amplitudes of seismic waves was examined with data at stations within 200 km from 142 local earthquakes in and near Japan. The expected value of the ...
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The Effect Of Tunnels' Diameter On The Variations Of End-anchored Rock Bolts' Axial Forces Subjected To Seismic Waves In Steep Ground
... regarding seismic waves, historical evidence and earthquake reports show that these structures are vulnerable to waves, which result from earthquake, and outbreak of damage and destruction is ...
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Simulation of seismic waves at the earth’s crust (brittle–ductile transition) based on the Burgers model
... ductile. Seismic waves may reveal the presence of the transition but a proper characterization is ...shear seismic attenuation and ductility due to shear de- formations and plastic ...of ...
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A numerical analysis of seismic waves for an anisotropic fault zone
... deploy seismic stations around and along the main fault, calculating these time delay could provide a clue to detect the fault ...the seismic waves at stations near the fault zone are more affected ...
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Part I: Lower limit of the total energy of earthquakes and partitioning of energy among seismic waves. Part II: Reflected waves and crustal structures
... possible the pres e nt knowledge regardin g the velocity-density structure in the Earth, the attenuation of seismic waves , the radiation pattern of the source and [r] ...
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Seismic visibility of a deep subduction channel – insights from numerical simulation of high-frequency seismic waves emitted from intermediate depth earthquakes
... We follow an approach by Stixrude and Lithgow-Bertelloni (2005) (SLB2005). They use an expression of the mineral’s free energy consisting of two parts: a “cold” part which con- tains an expansion of free energy to fourth ...
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Evidence for the use of reflected self generated seismic waves for spatial orientation in a blind subterranean mammal
... the seismic waves generated by each mole-rat in its respective territory throughout the entire process of burrowing the bypass tunnel to detour the obstacle and reconnect the two disconnected tunnel ...
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The role of near-field interaction between seismic waves and slope on the triggering of a rockslide at Lorca (SE Spain)
... More specifically, the aim of the modeling performed here is to “back analyze” a landslide event for which there is no completely known destabilizing action, since, due to the near-field conditions, there is uncertainty ...
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A study of the cyclic damage to buried pipelines during the passage of seismic waves
... the seismic impact and the directions in which the seismic waves travel, the geological and hydrological conditions, the operational loads and impacts, the construction of the pipeline and joints, ...
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Methods for Assessing the Seismic Resistance of Subterranean Hydro Structures under the Influence of Seismic Waves
... One of the main difficulties arising in the problems of geophysics, seismic exploration, and problems of calculating oscillations in an infinite medium is integration into infinity. For the transition from an ...
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Reflection and transmission of seismic waves under initial stress at the earth's core mantle boundary
... for the reflected and incident P waves we may calculate the actual value of the initial stress near the core-mantle boundary... FORMULATION AND SOLUTION OF THE PROBLEM..[r] ...
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Methods for Assessing the Seismic Resistance of Subterranean Hydro Structures Under the Influence of Seismic Waves
... K for an unsupported cavity, but the presence of a lining reduces the concentration of stresses in the massif by 20- 40%. It is also found that increasing the rigidity of the lining leads to an increase in stress ...
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A Study of the Seismic Waves SKS and SKKS. Glacial Geology of the Frying Pan River Drainage, Colorado
... Arrival times, amplitudes, and periods of the seismic phases SKB and SEKS have been investigated for normal, intermediate, and deep earthquakes recorded at Pasaden[r] ...
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Studies on Seismic Waves
... It is thus seen that it would be quite impossible to assign a period if there is only one complete pure wave in the interval; but if n is large , the period corresponding to the central [r] ...
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The seismic velocity structure of the Wadati-Benioff Zone – insights from guided waves
... simulate seismic waves up to at least 5 ...the seismic structures that are resolved by the 2D modelling are tested using the more computationally expensive 3D ...
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