In Yunnan region, s wave velocity structures show strong horizontal heterogeneity.
云南地区S波速度结构具有很强的横向不均匀性。
For the tight sandstone containing gas, only velocity ratio of P wave to s wave and Poisson ratio are sensitive to fluid variation.
而对于致密含气砂岩，纵、横波速度比及泊松比对流体变化相对较为敏感。
It is shown that so long as the restrained gas exists, there are two P waves and one S wave, even though the fluid phase is incompressible.
结果表明，甚至当液相为不可压缩时，由于束缚空气的存在，饱水土体中亦存在着两种P波。
The working principles, field observing techniques, data processing and analysis about P and S wave well-logging technique are briefly introduced.
S测井技术的工作原理、现场实测技术以及数据处理和资料分析过程。
The existing of earthquake swarm, S wave shadow in some seismic stations and gradually uplifting of surface suggest a magma system beneath these volcanoes.
火山区存在的震群活动、部分台站观测到的S波阴影区以及地表的缓慢抬升等，指示火山区存在一个岩浆系统。
With the measured P and S wave velocities and log-derived densities of the same interval, rock mechanical parameters of this pre-borehole are roughly calculated.
提取出其中的纵波、横波速度信息，并与实验室岩心声波测量结果和测井结果进行了对比。
We compared site response from the S wave inversion and those from other techniques, such as traditional direct spectral ratios of S waves and receiver function of S waves.
利用唐山近场强震记录对如何分析场地反应进行研究，分析比较了多种方法：线性反演法、传统的谱比法以及接收函数法。
This paper provides an example of the application of seismic S-wave reflection method and S-wave velocity to engineering investigation.
本文提供了地震横波反射法及横波速度在工程勘察中的应用实例。
An S-wave arrival time detection method for wave velocity measurement in single-hole method is presented in this paper.
本文系统论述了单孔法剪切波速测量信号处理中的一种到时差识别方法。
The shear (s) -wave velocity of near-surface materials and its effect on seismic-wave propagation are of fundamental interest in many engineering, environmental, and groundwater studies.
横波速度由于更能直接反映岩石的物理性质，从而在许多工程、环境和地下水勘查中有重要作用。
According to the properties of wave propagation in multiphase medium, the theoretical formulas for calculating the P-wave and S-wave velocity are deduced.
本文基于多相复合介质的波动传播特性，导出介质内纵、横波速的理论计算公式。
The assumption is made that P-wave velocity, S-wave velocity, density and Q factor show lateral piecewise linear continuous variations in block media.
假定介质为块状，且块中纵，横波速度及密度、品质因数横向分段线性连续变化。
The intrinsic frequency of P-wave increases because of existence of apparatus and its amplitude has been influenced by velocity ratio of P-wave vs S-wave.
纵波的固有频率因仪器的存在而增大，纵波幅度还受地层的纵、横波速度比的影响。
A new technique for picking the first S-Wave arrival is presented by multiplying energy ratio of the long window to the short window by the square of the amplitude envelope of waveforms in the paper.
提出了利用波形长短时窗能量比值与波形信号能量包络的平方乘积检测横波初至的新方法。
S-wave inverse quality factor is related to the shear-modulus versus frequency dispersion, which can be used to develop method for estimation of S-wave attenuation.
横波品质因子的倒数与剪切模量一频散有关，由此可以建立横波衰减的估算方法。
By correlating P-and s -wave seismic profiles, we found that the shallow gas horizons will bring up "bright spot" on the P-wave seismic profiles, and nothing appears on the s -wave profiles.
从纵横波剖面的对比来看，浅层气层在纵波剖面上表现为亮点，在转换横波剖面上表现正常。
This paper made a study on the excited property of the S-wave (transverse wave) from the expression of the vertical branch cut intergration of the S-wave.
从S波(横波)垂直割线积分的表达式出发，对S波的激发特性进行了研究。
Since P-Wave can not be suppressed in dipole shear wave log in slow formation, there are some difficulties in picking the first S-Wave arrival.
在慢速地层中偶极横波测井不能很好地压制纵波，致使横波首波的检测存在一定的难度。
The ground vibration by demolishing building mostly spreads with S-wave, P-wave, R-wave.
爆破拆除塌落触地产生触地震动，主要以S波、P波和R波三种地震波的形式向外传播。
The effective range of P-wave, S-wave, R-wave could be analyzed from the contours of dynamic stress.
从动应力等值线图上也可分析出强夯作用时压缩波、剪切波、瑞利波的作用范围。
Because of this way to the same ground point, the S-wave static correction is often much greater than the P-wave.
这样一来就导致了相对于同一地面点来说，横波静校正量往往远大于纵波静校正量。
Using the method of receiver function the S-wave velocity structure under Gansu seismic network is studied.
利用接收函数方法对甘肃测震台网下方的一维s波速度进行了研究。
Therefore, t he porosity obtained from S-wave should be used cautiously.
因此，由横波求出的孔隙度应慎重使用。
Whatever the straight line part of the stress-strain curve may be, it is always possible to find out the rock stress threshold by the peak value of the S-wave velocity.
试验结果表明：不论应力应变曲线上的直线部分是否明显，都可以用检测横波速度最大值的办法确定岩石的应力门槛值；
By the test about the volumetric dilatancy in rocks under the uniaxial compression with ultrasonic, the propagation of ultrasonic S-wave was analyzed in the compressing process of different rocks.
通过超声波对单轴压缩试验中岩石扩容现象的测试，分析了超声横波在不同岩石压缩过程中的传播情况。
As an example, we investigate the S-wave velocity structure beneath HIA station by using the SV-component receiver function inversion method.
作为实例，利用SV分量接收函数反演方法反演了海拉尔台下的S波速度结构。
The results show that the method can skip over the P-Wave and exactly pick the first S-Wave arrival in dipole shear wave log in slow formation.
实际资料处理结果表明，该方法可以跳过慢速地层中偶极横波测井的纵波而检测横波初至。
The applied real cases show the similarity of S-wave velocities inverted for same a well is better under the condition of small underground dip and gentle variation of lateral velocities.
应用实例说明，地下倾角较小时，横向速度变化不大，同一口井反演出的横波速度相似性较好。
A new method for estimating formation S-wave anisotropy parameters from 4-component (4-c) data in cross-dipole array acoustic logging is proposed.
提出一种从四分量正交偶极子声波阵列波形数据中提取地层剪切波方位各向异性参数的有效方法。
By employing a method of "extrapolation of multiple points" measurement of the S-wave train, we can reasonably raise the accuracy.
利用S波波列的多点测量外推方法有效地提高了测量精度。
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