Study of application of optical fiber Bragg grating sensing to uniaxial compression experiments of rock

WEI Shi-ming; CHAI Jing

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Study of application of optical fiber Bragg grating sensing to uniaxial compression experiments of rock

更新时间：2026-06-25

- Study of application of optical fiber Bragg grating sensing to uniaxial compression experiments of rock
- Vol. 29, Issue 11, (2008)
- 作者机构：
  
  1. 河南理工大学能源科学与工程学院,河南,焦作,454003
  2. 西安科技大学能源学院,西安,710054
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP212.4
- Online First：07 August 2013，
  
  Published：2008
- 稿件说明：
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WEI Shi-ming, CHAI Jing. Study of application of optical fiber Bragg grating sensing to uniaxial compression experiments of rock[J]. 2008, 29(11).
DOI：

WEI Shi-ming, CHAI Jing. Study of application of optical fiber Bragg grating sensing to uniaxial compression experiments of rock[J]. 2008, 29(11). DOI：

摘要

通过在岩石试件表面粘贴光栅与应变片的方法，测试了岩石单轴加载过程中轴向、环向的应变变化。将测试结果相对照，研究了光纤传感技术在岩石变形检测中的应用。加载方式为循环加载，最后一次至试件破裂，仅测试试件破裂前小变形阶段的变形。3次加载后结果显示光栅与应变片的测试结果一致，二者数据相吻合，证明光纤光栅传感技术可以应用于岩石试件变形检测中，对于提高岩石变形的测试手段具有一定的意义。

Abstract

The application of optical fiber sensing technology to rock deformation test is studied. The axial and radial strains are tested by sticking fiber Bragg gratings and electric strain gauges on rock surface in the uniaxial compression experiment; and test results are compared. The method of cyclic loading is applied; and the rock damaged at the last time. The small deformation only before damage is tested. By three times of loading

the results show that the testing curves of fiber Bragg gratings accord with electric strain gauges’ ones. It is shown that the fiber Bragg grating sensing technology can be used in deformation test of rock. It has certain meanings to increase the level of rock deformation monitoring.

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