Study on rock damage and acoustic emission based on ultrasonic velocity test of rock specimen under uniaxial compression

ZHAO Kui; JIN Jie-fang; WANG Xiao-jun; ZHAO Kang

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Study on rock damage and acoustic emission based on ultrasonic velocity test of rock specimen under uniaxial compression

更新时间：2026-06-25

- Study on rock damage and acoustic emission based on ultrasonic velocity test of rock specimen under uniaxial compression
- Vol. 28, Issue 10, (2007)
- 作者机构：
  
  江西理工大学环境与建筑工程学院,赣州,341000
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU452
- Online First：15 October 2013，
  
  Published：2007
- 稿件说明：
移动端阅览
ZHAO Kui, JIN Jie-fang, WANG Xiao-jun, et al. Study on rock damage and acoustic emission based on ultrasonic velocity test of rock specimen under uniaxial compression[J]. 2007, 28(10).
DOI：

ZHAO Kui, JIN Jie-fang, WANG Xiao-jun, et al. Study on rock damage and acoustic emission based on ultrasonic velocity test of rock specimen under uniaxial compression[J]. 2007, 28(10). DOI：

摘要

首先，建立了单轴压缩过程岩石损伤参量、应变与声速之间的定量关系式，分析了不同均质度对单轴压缩过程岩石声速的影响，结果表明，随着均匀度的增加，单轴压缩过程中声速由平缓变化到急剧变化，这与已有的岩石声发射数值模拟分析结果是一致的；其次，根据建立的声速与应变的关系公式，通过单轴压缩过程岩石声速与应变实测结果的回归分析，得到了具有较高精度的回归方程，从而通过试验验证了所建立的关系式的正确性；最后，从损伤的角度讨论了单轴压缩过程岩石声速与声发射的关系，得出了Kaiser点应位于声速初始下降点附近的结论，为岩石声发射测量地应力试验中Kaiser点的确定提供了新的方法。

Abstract

A new formula to estimate rock specimen damage parameter and its strain is established by means of ultrasonic velocity test under uniaxial compression. According to the formula ultrasonic velocity characterization with different homogeneity indices under uniaxial compression is analyzed. As the homogeneity index increases

the ultrasonic velocity decline rate increases. This conclusion coincides with numerical test of rock acoustic emission(AE). Regression analysis between rock ultrasonic velocity and strain is carried out based on the test results of rock under uniaxial compression. From the above point of view

the regression equation between rock ultrasonic velocity and strain which is of comparatively high accuracy

is obtained. And it reveals that the established formula is reliable. Kaiser effect of AE will appears when ultrasonic velocity declines obviously according to the discussion of the relationship between ultrasonic velocity and AE during the deformation of rock under uniaxial compression. So the result is helpful to research in-situ stress measurement using Kaiser effect of AE under uniaxial compression.

关键词

Keywords

references

Views

2017

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Experimental study of skarn under uniaxial cyclic loading and unloading test and acoustic emission characteristics

Study of creep constitutive model of rock salt based on acoustic emission characteristics

Numerical simulation of failure processes of heterogeneous rock specimens under assumption of invariant spherical stress during stress drop

P-wave velocity tomography and acoustic emission characteristics of sandstone under uniaxial compression

Energy dissipation feature and rock burst risk assessment in coal-rock combinations

Related Author

XU Su-chao

FENG Xia-ting

CHEN Bing-rui

LIU Di

ZHOU Hong-wei

ZHAO Yang

DUAN Xin

DING Jing-yang

Related Institution

School of Resources and Civil Engineering, Northeastern University

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

State Key Laboratory of Cool Resources and Safe Mining, China University of Mining and Technology

College of Mechanics and Engineering, Liaoning Technical University

Institute of Computational Mechanics, Liaoning Technical University

AI问答

⁰