Determination of water irruption feeder by using anisotropy of seismic wave;
用地震波的各向异性确定矿井突水通道的研究
Sectional-decomposition numerical modeling of seismic wave field;
区域分解地震波场数值模拟算法
Study on the influences of various seismic waves on response of bridge pier;
不同的地震波对桥墩地震反应的影响研究
Effect of earthquake wave frequency on dynamic response of tunnel;
地震波频率对巷道围岩动力响应的影响
Study on influences of complicated site conditions on earthquake wave;
复杂场地条件对地震波影响研究综述
On selection of earthquake wave for time history analysis;
时程分析用地震波选取的探讨
Analysis on the dynamic response of the complex structure caused by different seismic waves;
复杂结构在不同地震波作用下的动力响应
Based on the analyses of both statistics and frequency, it is found that the attenuation of seismic waves in the near region away from the explosion source is more abrupt than that in the middle and far regions; the vibration velocities of rock particles in the near region given by the Sodev抯 empirical formula are much greater than their practical values; the propagation of .
通过6次现场岩体爆破试验,测量出与爆源不等距离处的36组地震波形。
In this paper,a semi-analytical method to calculate the response of pile groups embedded in a layered soil to arbitrary incident seismic waves is presented.
本文舍弃桩基动力分析中的土介质平面应变假定，采用薄层内位移线性变化条件下的动力Ｇｒｅｅｎ函数形成桩－土－桩动力相互作用所需的土介质柔度矩阵，用梁单元模拟桩的运动，以地震波入射为初始运动输入，建立了适用于群桩基础对任意入射地震波响应的半解析分析模型，研究了层状土介质中群桩对不同角度入射ＳＨ、ＳＶ和Ｐ波的动力响应。
The Problems of estimating the time-varying spectrum of earthquake ground motions estimation using STFT, Wigner-Ville distribution, continuous wavelet transform, S-transform and improved S-transform with a complex window are addressed.
利用短时傅里叶变换(STFT)、Wigner-Ville分布、连续小波变换、S变换以及变复窗口的S变换等现代时频分析技术对地震波进行时变谱估计。
The distinctive feature and status in quo of artificial ground motions is analyzed in this paper, which set forth a simplified method to describe the non stationary frequencies of earthquake ground motions and statistical laws.
分析了人造地震波的特点与现状 ,给出了地震动频率非平稳特性的简化描述方法与统计规律 ,采用 ARMA模型研究了拟合反应谱的人造地震波合成方法 ,并通过算例对该方法进行了验证。
Design method for subsea spools against earthquake waves;
地震波作用下海底管线弯管抗震设计方法
The dynamic responses of the slurry wall subjected to earthquake waves;
在地震波作用下地下连续墙的动力响应
Selection of earthquake waves and values of damping ratio for space structures in aseismic analysis;
空间结构抗震分析中的地震波选取与阻尼比取值
Seismic sections show the response of the earth to seismic waves.
地震剖面是地壳对地震波的响应。
The Influence of Di-directional Earthquake to Selecting Waves in Time History Analysis and Column Design
双向地震对地震波选取及柱抗震设计的影响
There are two chief kinds of seismic waves: body waves and surface waves.
有两种主要的地震波：体波和面波。
seismic acoustic impedance log
地震波阻抗测井曲线
As the waves travel away from the focus, they grow gradually weaker.
当地震波远离震中时，它们便逐渐减弱。
Seismic waves move out from the focus of an earthquake in all directions.
地震波从震中向周围的各个方向传播。
Study on Seismic Beam-forming Method Based on Phased-array Vibrator System;
基于相控震源的地震波定向方法研究
Body waves, the fastest seismic waves, move through the earth.
体波是最快的地震波，可贯穿地球。
Downward Continuation of Seismic Wavefield with Topography From 2-D Acoustic Wave Equation
起伏地表二维声波方程地震波场延拓
The Analysis of Seismic Response of Underground Subway Structure to SV Waves;
剪切地震波作用下地铁地下结构地震响应分析
The source of earthquake waves-the site beneath the surface where the disturbance originates-is known as the focus.
地震波源--地表底下产生扰动的地方--称为震源。
One-way wave method for seismic wave field simulation for complex medium
复杂介质地震波场模拟的单程波方法
seismic research, tremors, waves
地震的研究、 震动、 震波.
the aftermath of war [an earthquake]
战争 [地震] 的余波
The seismometers are usually termed geophones.
地震计一般称为地震检波器。
short spread of detectors
小距离排列地震检波仪
seismometer testing apparatus
地震检波器测试仪器
seismometer resonant frequency
地震检波器谐振频率