scholarly journals Model of Seismic Wave Field Excited by Horizontally Distributed Charge

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Xu Qian ◽  
Wang Zhong-Qi
Keyword(s):  
Numerical Simulation ◽  
Wave Field ◽  
Seismic Wave ◽  
Ground Vibration ◽  
Source Model ◽  
Frequency Characteristics ◽  
Superposition Method ◽  
Explosive Source ◽  
The Impact ◽  
Seismic Wave Field

The amplitude-frequency characteristics of seismic wave field excited by an explosive source can directly affect the accuracy of seismic prospecting. To reveal the laws by which the horizontally distributed charge excites the amplitude-frequency characteristics, a method to calculate seismic wave field excited by horizontally distributed charge was studied in this paper. By taking the spherical cavity source model as the basis, the superposition method was applied to obtain the approach of calculating seismic wave field excited by horizontally distributed charge. Compared with numerical simulation, the error of this method was controlled under 7%. As a matter of fact, the distributive charge can effectively reduce the impact on ground vibration and increase the downward seismic wave energy. The charges that are horizontally distributed with 1 m interval can enhance the seismic wave resolution excited by explosive source. The research shows that the established theoretical model can correctly describe the amplitude-frequency characteristics of the seismic wave field excited by horizontally distributed charges.

scholarly journals Numerical simulation of seismic wave field in graded geological media containing multiple cavities

2016 ◽  
Vol 206 (2) ◽  
pp. 921-940 ◽  
Author(s):  
Ioanna-Kleoniki Fontara ◽  
Petia S. Dineva ◽  
George D. Manolis ◽  
Frank Wuttke
Keyword(s):  
Numerical Simulation ◽  
Wave Field ◽  
Seismic Wave ◽  
Seismic Wave Field

scholarly journals SPATIAL-TEMPORAL ANALYSIS OF SEISMIC WAVE-FIELD FROM THE DISTRIBUTED MINING EXPLOSION

2019 ◽  
Vol 4 (1) ◽  
pp. 141-148
Author(s):  
Sergey Efimov
Keyword(s):  
Wave Field ◽  
Seismic Wave ◽  
Temporal Analysis ◽  
Seismic Signal ◽  
Environmental Risks ◽  
Time Analysis ◽  
Seismic Recording ◽  
Seismic Records ◽  
Seismic Wave Field ◽  
Spatial Temporal Analysis

The article presents a space-time analysis of the seismic wave from a distributed career explosion. The method of direct measurement based on the dynamic model of the wave field is used to form an image of the seismic wave field in the field of quarry explosions. The efficiency of the proposed method is shown by the example of experimental seismic recording processing. The program "Nelumbo" is used to visualize the seismic field, which on the basis of experimental seismic records allows to form an image of the wave field in the space of the hemisphere, the center of which corresponds to the position of the seismometer (registration point). The algorithm of the program "Nelumbo" is based on the Huygens – Fresnel principle and Kirchhoff's theorem. The algorithm of the program allows to allocate from record of a seismic signal frames of a certain duration and to form the image of a wave field in space of a solid angle dimension π. This approach can be used as a tool to analyze the nature of the development of disturbances in the environment and the analysis of environmental risks in the production of blasting.

Application of seismic wave field attributes in reservoir characterization

1989 ◽  
Author(s):  
Lars Sonneland ◽  
Olav Barkved ◽  
Morten Olsen ◽  
Gary Snyder
Keyword(s):  
Wave Field ◽  
Seismic Wave ◽  
Reservoir Characterization ◽  
Seismic Wave Field

MPI‐based seismic wave field modeling in 3‐D viscoelastic random cavity medium

2010 ◽  
Author(s):  
Yong Yun‐dong ◽  
Wang Xi‐wen ◽  
Wang Yu‐chao ◽  
Hu Zi‐Duo ◽  
Wang En‐Li
Keyword(s):  
Wave Field ◽  
Seismic Wave ◽  
Field Modeling ◽  
Seismic Wave Field

scholarly journals Model for Calculating Seismic Wave Spectrum Excited by Explosive Source

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Qian Xu ◽  
Zhong-Qi Wang
Keyword(s):  
Seismic Wave ◽  
Seismic Waves ◽  
Wave Spectrum ◽  
Seismic Source ◽  
Source Model ◽  
Detonation Pressure ◽  
Adiabatic Expansion ◽  
Main Frequency ◽  
Explosive Source ◽  
Seismic Source Model

To reveal the characteristics and laws of the seismic wavefield amplitude-frequency excited by explosive source, the method for computing the seismic wave spectrum excited by explosive was studied in this paper. The model for calculating the seismic wave spectrum excited by explosive source was acquired by taking the seismic source model of spherical cavity as the basis. The results of using this model show that the main frequency and the bandwidth of the seismic waves caused by the explosion are influenced by the initial detonation pressure, the adiabatic expansion of the explosive, and the geotechnical parameters, which increase with the reduction of initial detonation pressure and the increase of the adiabatic expansion. The main frequency and the bandwidth of the seismic waves formed by the detonation of the explosives in the silt clay increase by 23.2% and 13.6% compared to those exploded in the silt. The research shows that the theoretical model built up in this study can describe the characteristics of the seismic wave spectrum excited by explosive in a comparatively accurate way.

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