Experimental study on infrared radiation of bolt and rock in condition of loading

Yuan-ming Ji

doi:10.1117/12.790746

3 March 2008 Experimental study on infrared radiation of bolt and rock in condition of loading

Yuan-ming Ji

Proceedings Volume 6621, International Symposium on Photoelectronic Detection and Imaging 2007: Photoelectronic Imaging and Detection; 66210X (2008) https://doi.org/10.1117/12.790746
Event: International Symposium on Photoelectronic Detection and Imaging: Technology and Applications 2007, 2007, Beijing, China

Abstract

The Infrared radiation experiments on bolt and rock in the process of loading were carried out. It was found that the infrared radiation temperatures of non-bolted block rose wholly and uniformly before stress peak with increase of loading. The bolted rock presented local dissimilation in the thermal image after stress peak. The multi-layer round infrared radiation isothermal lines were formed around bolt. The closer from the bolt centre, the higher, the farther from the bolt centre, the lower temperature was. The temperature was gradually reduced from inside to outside. The change of infrared radiation temperature fields responded to stress fields around bolt. The high infrared radiation isothermal lines corresponded with the high stress areas. The low infrared radiation isothermal lines corresponded with the low stress areas.

Citation Download Citation

Yuan-ming Ji "Experimental study on infrared radiation of bolt and rock in condition of loading", Proc. SPIE 6621, International Symposium on Photoelectronic Detection and Imaging 2007: Photoelectronic Imaging and Detection, 66210X (3 March 2008); https://doi.org/10.1117/12.790746

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