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- The faultiness of existing models was discussed.A new model for elastic wave velocity of unconsolidated sandstone was developed on the basis of these models. 首先讨论了现有各类模型存在的不足,并在这些模型的基础上,提出了新的疏松砂岩弹性波速分析模型。
- Till now, the testing method for the elastic wave velocity of rock specimens with ultrasonic waves is basically the travel time testing method. 迄今为止,岩石样品弹性波速的超声波测试基本上是采用波动走时的测定方法。
- Utilizing the technique of ultrasonic detection on jointed and fractured rock masses, the author firstly measures the elastic wave velocity, then appraises the quality of different masses. 首先利用超声波探测法对节理裂隙岩体进行了声波测试,对不同的节理裂隙岩体进行了质量评估。
- Hardin B O, Richare F E. Elastic wave velocities in granular soils[J]. Divi. Proc. of ASCE, 1963,89[SM1]:3-65. 李新.;用超声波法测定三轴仪内非饱和砂土试件动剪切模量初探[A]
- The influenes of triaxial stress states on the elastic wave velocities of clayey sandstone,and claystone and hard siliceous sandstone have been determined by experiments. 岩石所受的三向应力状态对其弹性波传播性质有一定的影响,此认识为所做的以泥质砂岩、泥岩和硅质胶结的坚硬砂岩为试样的实验所证实。
- RELATIONS OF ELASTIC WAVE VELOCITY AND ATTENUATION AND THEIR ANISOTROPIES TO THE FABRIC OF ROCKS UNDER DIFFERENT p-T CONDITIONS 不同温压下岩石弹性波速度、衰减及各向异性与组构的关系
- elastic wave velocity 弹性波速
- Using numerical value test based on the wave velocity function of the transverse isotropic elastic medium, the two effects are validated. 从横观各向同性弹性介质的波速方程出发,通过具体的算例对这两种特征进行了较好的理论分析。
- By treating the rock as the transverse isotropic elastic medium and using numerical test of the wave velocity function, the property is theoretically validated. 基于横观各向同性弹性介质的波速方程,还进一步通过具体算例对这特征进行较好的理论分析。
- Meanwhile, the spectrum is also related to the shock wave velocity. 光谱的结构特征也依赖于激波的速度。
- Experimental Reserches on Compressional Elastic Wave Velocities of Diorite at High Pressures and Temperatures 高温高压下闪长岩弹性纵波速度的实验研究
- The dynamic stress intensity factor (DSIF) of the single-edgedcracked specimen of PBX was computed by FEM, the results indicate thatthe DSIF is determined by the material elastic wave propagation velocity. 根据低应变率范围PBX在不同应变率和不同温度拉伸下的实验结果,将修正的Ramberg一osgood进行改进,结合Johnson一Cook模型的分析思路,建立非线性本构模型描述不同应变率及温度拉伸下PBX的力学行为。
- The Measurements of Rock Elastic Wave Velocities at High Temperature and High Press and Its Implication for Lithosphere Seismic Velocities 岩石波速温度和压力系数的测量方法及其应用
- COMPRESSIONAL ELASTIC WAVE VELOCITIES OF SERPENTINIZED PYROXENITE AT HIGH PRESSURES AND HIGH TEMPERA- TURES AND ITS GEOLOGICAL SIGNIFICANCE 蛇纹石化辉石岩纵波速度的高温高压实验研究及其地质意义
- Surface wave velocity image has a contrast effect on detecting karst body. 以及面波速度映像成图对岩溶体探测起到了全面追溯和对比作用,进行了分析研究。
- Keywords: concrete, crack, defect, elastic waves, imaging. 关键词:混凝土、裂缝、缺陷、弹性波、影像法。
- A surface at which seismic wave velocities change. 不连续面间断面,地震波速度突变面
- In this paper, using FEM method to numerical simulate the elastic wave equation. 本文采用有限元法进行弹性波方程数值模拟。
- In this study, we applied the reversibility of elastic wave to a discussion of the reverse time propagation of wave equation. 摘要本文应用波动方程式的可逆性讨论弹性波的逆时影像重建。
- All these indicate that the acoustic wave velocity in granite samples is affected by several extrinsic factors and some rules may be found. 实验结果表明,声波在岩石内传播速度受很多外在因素影响,并具有一定的传播规律。