Study on the Mechanical Characteristics of Coal Rock and the Law of Infrared Radiation of Loading Rate
In order to study the mechanical properties of coal rock at different loading rates and the infrared precursor in-formation of its instability failure,under different loading rates,the TP coupling testing machine and high-precision infrared thermal imager,and five loading rates of 0.01,0.02,0.03,0.04 and 0.05 mm/s were used to perform uniaxial compression tests,and the test results showed that the proportion of elastic deformation stage of coal rock line was significantly reduced by the increase of loading rate.The temperature difference between the peak and minimum value of the average temperature curve of coal rock decreases with the increase of loading rate.The increase of loading rate hinders the early time point of the cooling precursor phenomenon of coal rock instability failure.
NETL
NSTL
万方数据
维普
