According to the analysis of engineering example, the paper discussed the principle of reflected wave method and its application for detecting quality of low strain pile foundation.
通过工程实例分析，论述了反射波法低应变动载检测的原理和在桩基础工程现场检测中的应用。
The consistency of the frequency interpretation of reflected wave signal with the transient mechanic impedance method is illustrated with practical engineering examples.
说明了反射波信号的频率解释和瞬态机械阻抗法的一致性并均以工程实例加以佐证。
Lattice wave will be reflected when it reaches the boundary so that the reflecting boundary condition is more reasonable than cyclic boundary.
因为晶格振动的波在达到界面时会被反射，所以镜面反射边界条件与循环边界条件相比更符合晶格振动的特点。
The results of the numerical model test show that the method is very effective for the separation of the incident and reflected irregular wave.
利用数字滤波，建立了时域分离入、反射不规则波的计算方法。
The methods of separation of incident waves and reflected waves, the influence of wave period on the stability of armour blocks, and the reflection ratio of the breakwater are also discussed…
此外，在本文中还探讨了入、反射波分离的方法，波浪周期对块体稳定性的影响以及堤体的反射率等问题。
To identify the signal of the weak reflected wave is a key problem to detect the thickness of the coal seam by using elastic wave.
弱反射波信号识别是声波法煤层厚度探测中的一个关键问题。
The system could measure certain distance on the premise that the speed of reflected wave in the air is fixed.
该系统以空气中超声波的传播速度为确定条件，利用反射超声波测量待测距离。
Another familiar property of wave is their ability to be reflected when they meet an obstacle.
人们熟知的波的另一个性质是波在碰到障碍物时的反射能力。
This paper discusses the influence of construction and geology condition on the reflected waves, and put forwards the synthetic analysis method of reflected wave curves.
本文阐述了施工工艺及地质条件对测试曲线的影响，提出了反射波曲线综合分析的途径与方法。
Then, both the velocity and pressure have appeared swings in various degrees, which are the results of concurrent effects of pressure wave and reflected wave.
而后速度和压力图均出现了不同程度的波动，可知这是压力波和反射波共同作用的结果。
This paper reveals this law by engineering practice. Thence, it deepens the correlative understanding of the wave motion character of the reflected wave with the structure of pile body.
文章通过工程实践揭示了这一规律，从而深化了反射波波动特征与桩身结构特征的相关性认识。
The shape and energy distribution of direct wave is mainly influenced by drift, while the energy distribution of reflected wave is influenced mainly by the interface between coal and rock.
巷道对各道直达波能量分布及波列形状有明显影响；煤岩分界面主要影响反射波能量分布。
A method is presented, which makes it possible to calculate velocity and interface depth of the reflected wave in a vertically inhomogeneous medium.
本文提出了一种利用反射波走时曲线计算垂向非均匀介质速度和反射界面深度的方法。
The influence factors and strength variation of the deep mixing pile are analyzed, and the application of reflected wave method in the deep mixing pile test is investigated.
对深层搅拌桩强度变化及影响因素进行了分析，并就反射波法在深层搅拌桩检测中的适用性进行探讨。
Receiving circuits detect the wave reflected by human tissue and output electric signal that has been demodulated.
回波处理电路用于检测由人体组织反射的超声信息，对转换成的电信号进行解调输出。
For an incident shock wave, the strength of reflected shock waves from the boundary of different materials are calculated theoretically.
从理论上计算了同一强度的入射冲击波在不同材料界面上产生的反射冲击波强度。
An accident of overvoltage reflected wave occurred in Chongqing Iron and Steel Company is presented. Generating reasons of overvoltage reflected wave and protective measures are discussed.
介绍了在重钢发生的过电压反射波的危害实例，探讨了过电压反射波的产生原因及预防措施。
Finally, we determine the changes in the phases of the components of the reflected and the incident wave.
最后，我们求反射波和入射波各分量的位相变化。
Water inlet&outlet and wave breaking chambers are arranged for relieving slab and breast wall to reduce the reflected wave height alongside the berth.
为减少码头前沿的反射波高，巧妙地在卸荷板和胸墙中设置进、出水孔和消浪室。
A pulse wave is produced by intermittent left ventricular ejection, propagates from the centre to the periphery along the arterial tree, and can be reflected at the points of impedance mismatch.
脉搏波由左心室间断射血产生，沿动脉壁从中央向外周传导，遇到阻抗不匹配处可以发生反射。
The basic theory in designing and implementing the ultrasonic distance measuring system, is to record the time between the emission wave and the reflected wave by the object.
以测量超声波发射与反射时间差作为测距的基本原理，设计并实现可自动测距系统。
This paper discusses the electromagnetism properties of the near field chamber, with the relationship between reflected wave and direct wave analyzed.
讨论了近场暗室的电磁场特性，对暗室入射场、反射场的关系进行了分析，给出在工程中实用的近场暗室场特性的计算方法。
When a radio wave propagating in one medium impinges upon another medium having different electrical properties, the wave is partially reflected and partially transmitted.
电波在不同性质的介质交界处，会有一部分发生反射，一部分通过。
But, part of it is absorbed in the surface, thus, the reflected wave losses some of its energy.
但是一部分的声音会被反射面吸收，因此被反射的声音会失去一部分的能量。
Owing to the presence of interface of dielectric and air, it is required to impose three waves, including incident plane wave, reflected and transmitted waves at the total-scattered field boundary.
考虑入射波在两种介质界面上会产生反射和透射，故在总场边界上引入入射波、反射波和透射波。
A percussion device (7) gives impact pulses to a waveguide (21), where a compression stress wave and a reflected tensile stress wave are generated, which propagate in the waveguide.
冲击设备(7)向波导(21)提供撞击脉冲，在波导中产生压缩应力波和反射的拉伸应力波，应力波在波导中传播。
We find that there appears a singular trajectory ( density on it being zero ) and a additional left-facing shock after the reflected wave reaches the explosion point.
我们发现，在反射波到达爆炸点后，这里出现了一条密度为零的奇轨线和另一条左向的激波。
The distorted wave front of the light diffusely reflected from the rough surface is reconstructed by phase conjugation.
粗糙面反射光的波前失真由相位共轭修复。
When the defect of pile body is located at the range of one - dimensional blind areas, the wave form of the reflected wave distorts and shows the characteristics of strong amplitude and low frequency.
当桩身缺陷位于一维“盲区”范围时，反射波波形畸变，并呈强振幅，低频率之特征。
Abstract: At present, the reflected wave method is the most suitable and commonly used method in detecting the quality of rigid precast and cast-in-place piles.
文摘：反射波法是目前检测预制桩和灌注桩等刚性基桩质量最适合、最常用的方法。
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