Related Experiment Video
Updated: Jun 23, 2025

A Uniaxial Compression Experiment with CO2-Bearing Coal Using a Visualized and Constant-Volume Gas-Solid Coupling Test System
Published on: June 12, 2019
Destabilization damage characteristics and infrared radiation response of coal-rock complexes
Bo Li1,2,3, Zhen Shi4,5, Mengsheng Jiang6
1College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo, 454003, China. anquanlibo@163.com.
Abstract:
To investigate the characteristics of destabilization damage in coal-rock complexes. Mechanical property tests were conducted on coal, rock, and their complexes. An infrared thermal camera was employed to real-time monitor the infrared (IR) radiation response signals during the destabilization damage process. A numerical model of coal-rock destabilization damage was developed, and its validity was verified. Deformed stress fields and displacement contours were obtained during the destabilization damage process. Upon destabilization, numerous cracks form at the base of the "coal" section, extending towards the interface, resulting in the formation of a wave-like deformation region. The differentiation in infrared thermal images is more pronounced in the "coal" section compared to the "rock" section. A high-stress region is evident at the interface, resulting in an area of high stress differentials. However, the bottom of the "coal" section also exhibits a region with high stress differentials and a more pronounced tendency towards destabilization damage. Displacement contours revealed that numerous units at the bottom of the "coal" section had slipped and misaligned, leading to the accumulation of damage and an elevation in the local damage level. It is a crucial factor contributing to the notable phenomenon of IR thermal image differentiation.
More Related Videos
09:18Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident
Published on: December 14, 2017
10:18Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography
Published on: February 21, 2017
Related Concept Videos
Combustion Energy: A Measure of Stability in Alkanes and Cycloalkanes
Alkanes undergo combustion in the presence of excess oxygen and high-temperature conditions to give carbon dioxide and water. A combustion reaction is the energy source in natural gas, liquified...
Deactivation Processes: Jablonski Diagram
Radioactivity and Nuclear Equations
A nuclide of an element has a specific number of protons and...
Constant Volume Calorimetry
Nuclear Stability
To hold positively charged protons together...
Radioactive Decay and Radiometric Dating