The elastic wave reflection method is one of the effective methods of detecting the thickness of the top coal seam.
声波反射法是目前顶煤厚度探测的有效方法之一。
This paper summarizes simply the history of bolt testing technique, describes in detail stress wave reflection method.
笔者对锚杆检测技术的历史进行了简单的总结,并详细、重点介绍了目前被广泛使用的应力波反射法。
A stress wave reflection imaging (SWRI) method is presented to test and diagnose the complex defects in the concrete structure.
提出了混凝土结构中任意缺陷的应力波反射成像测试与诊断方法。
The characteristics and law of seismic transverse wave reflection of bedrock and karst are analyzed through practical projects.
通过实例分析研究了基岩及岩溶的地震横波反射特征和规律。
The bandgap structure is calculated using periodic method of moment, and the plane wave reflection phase is calculated using FDTD.
利用周期矩量法计算了其带隙特性,利用FDTD法计算了其反射相位。
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。
The blast furnace raceway formation under the intensive coal injection by measurement of micro wave reflection gunned through a tuyere is discussed.
通过利用风口测量枪进行的微波反射测量方法讨论了大煤粉喷吹量条件下高炉风口回旋区的形成。
As a new type breakwater, perforated caisson is taken more attention because its structure can effectively reduce the wave reflection and the wave energy.
开孔沉箱作为新式防波堤,由于其结构能够有效减小波浪的堤前反射及消减波浪的能量而受到越来越多地重视。
His research found that perfect troubles, neither the electromagnetic wave reflection is not going to absorb, because that electromagnetic waves will change.
他的研究发现,完美的隐身衣,既不反射电磁波,但也不会吸收,因为那样电磁波都会发生变化。
For scattering of a bounded acoustic beam from a liquid-solid interface, the principal difficulty comes from the treatment of tie plane wave reflection coefficient.
分析有限声波束从平面液-固界面上散射的困难主要发生在平面波反射系数的处理上。
Finally, the computation of wave reflection and diffraction in the Dalian Harbor indicates that the present method can be widely used for computing the wave field in harbors.
对大连港区内的波浪折射绕射进行了计算,表明本方法可以应用于实际港口的波浪场计算中。
The stress - wave reflection method exist limitation in testing the quality of foundation pile. The direction of defects in pile body exerts a tremendous influence on testing results.
应力波反射法在检测基桩质量的应用上存在着方法上的局限,且桩身缺陷的方向性对检测结果影响极大。
The Stacking velocities for both compressional and shear wave reflection data was used to estimate the approximate location of the conversion points of the P-SVwave exploration in this paper.
本文利用纵波和横波的迭加速度资料来计算p -SV波勘探中转换点的近似位置。
This paper introduces the theory calculation of shear wave reflection for block corner. And it derives the echo acoustic pressure theory calculation formula for block corner and its shape defect.
阐述了横波在端角反射中的理论方法计算,并推导端角及端角形缺陷的回波声压理论计算公式。
According to the real-measured wave reflection coefficient of two kinds of open-caisson wharf structural types in front of dike under the action of wave, the relationship between them is verified.
通过两种开孔沉箱码头的结构形式在波浪作用下实测的堤前波浪反射系数,进一步证实了相互间的关系。
A case history of the application of the P-wave reflection method in that area to investigate the bedding plane of bedrock, karst cave, fault and the distribution of the dissolution belt is given.
文中给出了该区P波反射法探测基岩界面、溶洞、断层和溶蚀带分布的应用实例。
The three term Taylor series of P-P wave or P-SV wave reflection travel times in VTI media are the function of elastic parameters. Therefore they can be used to inverse the seismic elastic parameters.
对P P波、PSV波的传播时间进行三项泰勒展开时,它们的系数中包含了地震波的各向异性信息及垂直速度信息,可以为地震波的弹性参数反演提供基础。
From flume experiments and aeroplane photographs of the coast, one can see the existence of sand wave induced by the reflection wall.
水槽实验和海岸高空照片资料上清楚的分辨出这种由反射壁效应产生的沙波的客观存在性。
The results demonstrate the cross correlation filter not only can suppress random noise in GPR signal but also confirm exactly the onset of reflection wave.
结果表明:应用该文所介绍的处理方法不但能有效压制探地雷达信号中的随机干扰而且能精确确定反射波的起跳点。
Rock mass elastic wave velocity is the synthesized reflection of rock quality, rock mass structure, and rock mass existing environment.
岩体弹性波速度是组成岩体的岩石性质、岩体结构、赋存环境的综合反映。
When the primary air blast wave from the explosion strikes the ground another blast wave is produced by reflection.
当爆炸引起的入射冲击波触及地面时,由于波的反射便产生另一冲击波。
The reflection wave, transmission wave and critical reflection are considered in the algorithm.
算法中考虑了反射波、透射波和临界反射。
The bent shock wave is reflected at the wall. As the flow speed changes, two kinds of shock reflection have been observed.
弯曲的激波与壁面进一步作用后发生反射,由于波前气流速度不同,这种反射存在规则反射和马赫反射两种类型;
The reflection phase property and surface wave dispersion are analyzed using finite element method.
用有限元方法分析了其反射相位特性及表面波传输特性。
It is a difficult point to teach the students solving the wave equation on finite interval by the reflection law of the wave.
用波的反射原理求解有限区间上的波动方程是数学物理方程中的基本内容,也是教学中的难点内容。
This algorithm USES ray tracing to calculate traveltime, and DE - rives reflection amplitude from wave field interface equation.
该算法使用射线追踪计算传播时间,应用波场界面方程计算反射振幅。
By analyzing the reflectivity spectrum and reflection wave spectrum of thin beds, we put forward a new method for thickness determination of the thin beds.
作者通过研究地层厚度变化对地层本身的反射系数谱及反射波频谱的影响规律,寻找到了一种新的计算薄层厚度的方法。
In order to decrease the reflection of wave on the boundary, spongy condition was used on top boundary.
为了减少波在边界上的反射,顶部边界采用了海绵边界条件。
The results obviously demonstrate wave diffraction in harbor on condition of boundary reflection. Distribution of wave field in harbor is relatively appropriate.
结果比较清楚地反映出在考虑边界反射条件下波浪绕射情况,港内波浪场的分布比较合理。
The results obviously demonstrate wave diffraction in harbor on condition of boundary reflection. Distribution of wave field in harbor is relatively appropriate.
结果比较清楚地反映出在考虑边界反射条件下波浪绕射情况,港内波浪场的分布比较合理。
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