Results 21 to 30 of about 10,493 (257)

Effects of Oblique Incidence of SV Waves on Nonlinear Seismic Response of a Lined Arched Tunnel

open access: yesShock and Vibration, 2020
The incident direction of earthquake motion is an important factor affecting the seismic response of underground structures. In this study, a three-dimensional (3D) oblique incidence method of SV waves is proposed and the effects of incident angles of SV
Dunyu Lyu   +6 more
doaj   +1 more source

Tube waves, seismic waves and effective sources [PDF]

open access: yesWave Motion, 1993
The radiation of waves from a monopole source in a fluid-filled borehole into an elastic medium is considered. A simple asymptotic analysis, based on the smallness of the ratio of the borehole radius to the wavelength, reveals the interaction between tube waves and seismic waves.
Burridge, Robert   +2 more
openaire   +2 more sources

Influence of apparent wave velocity on seismic performance of a super-long-span triple-tower suspension bridge

open access: yesAdvances in Mechanical Engineering, 2015
As one of the main characteristics of seismic waves, apparent wave velocity has great influence on seismic responses of long-span suspension bridges. Understanding these influences is important for seismic design.
Hao Wang   +4 more
doaj   +1 more source

Seismic forward and inverse simulation in a tight reservoir model of loess plateau region

open access: yesPetroleum Exploration and Development, 2017
To find out the seismic wave field propagation principles in loess plateau near surface of the Ordos Basin and the seismic response characteristics of tight oil reservoirs, this study established a geological-geophysical model under the real conditions ...
Daxing WANG   +5 more
doaj   +1 more source

Study on co-seismic deformation wave characteristics of crustal deformation observation records in Ankang area

open access: yes地震科学进展, 2022
Based on the observation records of deformation stations in Ankang area from 2017 to 2020, we compared and analyzed the earthquake-reflecting capacity of six sets of instruments, and systematically discussed the relationship between the source parameters
Xuejuan Zhang   +4 more
doaj   +1 more source

Traveling Wave Resonance and Simplified Analysis Method for Long-Span Symmetrical Cable-Stayed Bridges under Seismic Traveling Wave Excitation

open access: yesShock and Vibration, 2014
The seismic responses of a long-span cable-stayed bridge under uniform excitation and traveling wave excitation in the longitudinal direction are, respectively, computed.
Zhong-ye Tian, Meng-lin Lou
doaj   +1 more source

Validation of Rayleigh Wave Theoretical Formulation with Single-Station Rotational Records of Mine Tremors in Lower Silesian Copper Basin

open access: yesSensors, 2021
The classical Rayleigh surface rotational wave in terms of its theoretical notation and, resulting from this, properties associated with the induced seismic phenomena in mines are presented.
Witold Pytel   +3 more
doaj   +1 more source

Features of processing of marine seismic observations using finite-difference full-wave migration

open access: yesГеофизический журнал, 2013
Features and basic principles of plotting the graph of marine seismic observations processing with application of original method of finite-difference total wave migration of the sum of central middle point, which is more stabile in case of investigation
A. O. Verpahovskaya   +2 more
doaj   +1 more source

Field Tests for Generating Source System and Picking the Seismic Shear Waves to Meet the Engineering Purposes Requirements. [PDF]

open access: yesKirkuk Journal of Science, 2019
Many seismic field tests were carried for the designed and modified seismic apparatuses using to generate seismic shear waves. These apparatus includes: "wooden plank" horizontal traction shear wave source, and a modified geophone for picking the SH-Wave
Muhana Ahmed
doaj   +1 more source

Temporal and spatial evolution law of characteristic parameters for coal rock fracture induced seismic wave

open access: yesJournal of Industrial Safety
Quantitative study of the temporal and spatial evolution of seismic wave characteristic parameters is of great significance for accurately identifying the P-wave and S-wave in seismic waves and improving the accuracy in localizing microseismic events ...
Zhongquan Kang   +5 more
doaj   +1 more source

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