Acoustic wave test on mechanical properties variation of rocks under different damage degrees

YAN Peng; ZHANG Chen; GAO Qi-dong; LU Wen-bo

doi:10.16285/j.rsm.2015.12.012

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Acoustic wave test on mechanical properties variation of rocks under different damage degrees

更新时间：2026-06-25

- Acoustic wave test on mechanical properties variation of rocks under different damage degrees
- Vol. 36, Issue 12, Pages: 3425-3432(2015)
- 作者机构：
  
  1. 武汉大学水资源与水电工程科学国家重点试验室,湖北,武汉,430072
  2. 武汉大学水工岩石力学教育部重点试验室,湖北,武汉,430072
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2015.12.012
  CLC： TU443
- Online First：14 June 2018，
  
  Published：2015
- 稿件说明：
移动端阅览
YAN Peng, ZHANG Chen, GAO Qi-dong, et al. Acoustic wave test on mechanical properties variation of rocks under different damage degrees[J]. 2015, 36(12): 3425-3432.
DOI：

YAN Peng, ZHANG Chen, GAO Qi-dong, et al. Acoustic wave test on mechanical properties variation of rocks under different damage degrees[J]. 2015, 36(12): 3425-3432. DOI： 10.16285/j.rsm.2015.12.012.

摘要

声波波速变化可有效表征岩体损伤程度。通过对岩样进行人工预损，利用声波检测标定岩样的不同损伤程度，然后通过三轴压缩试验来研究不同损伤程度下岩石的力学特性，建立了声波速度下降幅度与岩体力学参数变化幅度间的关系。研究表明，当岩样的声波速度下降5%～8%时，黏聚力c值降低15%～25%，内摩擦角? 值则升高14%～32%，因此，用声波速度的下降幅度来描述岩体参数的变化是可行的。根据现场实测的岩体损伤区内的声波速度的变化值，可以从一定程度上估计岩体参数的跌落情况，从而更进一步地说明损伤区内岩体的承载力。

Abstract

The damage degree can be characterized by the acoustic wave velocity of rock masses effectively. The rock samples are pre-damaged by the artificial cyclic loading

and the damage degree is determined by acoustic determining method. Then the mechanical properties of rock samples under different damage degrees are studied through triaxial compression test. The relationship between the decrease of acoustic wave velocity and the variation of the mechanical parameters of rock masses is established. The results show that

when the acoustic wave velocity of rock samples decreases by 5%-8%

the value of the cohesive of rock samples will reduce by 15%-25%

and the internal friction angle will increase by 14%-32%. It is shown that using the reduction of the acoustic wave velocity to describe the change of the rock mass parameters is feasible

because the rock is hardly damaged in the case of acoustic wave testing. So according to the field measurement data of the variation of the acoustic wave velocity

the change of rock mass parameters can be estimated to a certain extent

the bearing capacity of rock mass in damage zone can be further illustrated.

关键词

Keywords

references

Views

774

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Experimental investigation on mechanical behaviours of salt rock containing brittle-hard interlayers

Characteristic analysis of deformation failure and energy dissipation of cemented backfill body under triaxial compression

Experimental research on effects of strain rate on mechanical properties of shale

Geomechanical properties and engineering prevention of breccia in left bank underground powerhouse of Wudongde hydropower station

Energy analysis of limestone during triaxial compression under different confining pressures

Related Author

HAO Tie-sheng

GENG Yi-de

CHEN Yue-du

XU Wen-bin

SONG Wei-dong

WANG Dong-xu

MA Yue

LIU Jun-xin

Related Institution

College of Science, North University of China

College of Mining Engineering, Taiyuan University of Technology

Faculty of Resources & Safety Engineering, China University of Mining &Technology (Beijing)

School of Civil and Environment Engineering, University of Science and Technology Beijing

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

AI问答

⁰