东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2009, Vol. 30 ›› Issue (9): 1334-1336+1349.DOI: -

• 论著 • 上一篇    下一篇

刻槽法拾取岩样横波波速的试验方法

丁梧秀;王鸿毅;赵文;   

  1. 东北大学资源与土木工程学院;洛阳理工学院土木工程系;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2009-09-15 发布日期:2013-06-22
  • 通讯作者: Ding, W.-X.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50874039);;

Test method of measuring s-wave velocity of rock by V-shaped groove on specimen

Ding, Wu-Xiu (1); Wang, Hong-Yi (2); Zhao, Wen (1)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; (2) Department of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-09-15 Published:2013-06-22
  • Contact: Ding, W.-X.
  • About author:-
  • Supported by:
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摘要： 在小尺寸试件拾取横波难度高的情况下,根据波的传播规律,通过试件底部界面刻槽的方法,对反射纵波形成绕射,消除了反射纵波对横波初至的干扰,成功地实现了利用纵波探头拾取小尺寸岩样横波速度的测试.通过试验,利用纵波探头获得了岩样的横波速度参数,计算了横波速度各向异性系数.研究表明,层状结构岩石横波速度变化规律与纵波速度变化规律相似,即遵循椭圆方程的规律.通过顺层方向纵、横波速度的比值分析,证明试件底部界面刻槽测试横波的测试方法是合理的.

关键词: 波速, 横波速度, 测试方法, 各向异性, 层状结构, 小尺寸岩样

Abstract: S-wave velocity is significant to the determination of dynamic parameters and evaluation of rockmass stability. A new measurement method of S-wave velocity for small-size rock samples is put forward according to the propagating law of elastic wave. The S-wave velocity can be measured with the probes for P-wave by the V-shaped groove on the bottom of specimen to eliminate the interference from P-wave. The S-wave velocities of rock samples with layered structure are thus obtained with the anisotropic coefficient of S-wave velocity calculated. The results showed that the change of S-wave velocity in rock is similar to that of P-wave velocity, i.e., observing the law of elliptic equation. It was proved that the new measurement method is applicable via the analysis of the ratio of P-wave velocity to S-wave velocity.

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