Experimental study discovered that:(i) coal rocks and sandstone in the course of loading have three types of infrared thermal image features and three types of infrared radiation temperature features; (ii) infrared detection is comparable with acoustic emission detection and electrical resistance detection. Generally, the infrared forewarning of coal rocks' failure comes later than that of acoustic and electrical resistance, but the infrared radiation temperature forewarning of coal burst comes earlier. On the basis of comprehensive study and analysis, it was suggested that stress nearby 0.79 σc should be taken as the stress-caution-zone for rock mass failure, ground pressure and its disasters monitoring.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Zhong Shihang, Application of strain-electricity resistance rate on the measure of underground engineering rock deformation,Chinese J. of Rock Mech. and Eng. (in Chinese), 1988, 7(1):45.
Marcak, H., The relationship of microstructure in stressed coal seams to observed seismoacoustic phenomena, inProceedings of the 3rd Conf. on Acoustic Emission 1.Microseismic Activity in Geologic Structures and Materials (Acoustic Emission III), Penny:Penny State Uni., Tran. Tech. Pub., 1984, 516–527.
Tholugyan, Y. S., Judd, W. R., Roy, R. F.,Physical Properties of Rocks and Minerals (translated by Shan Jiazeng, Li Jiliang et al.) (in Chinese), Beijing:Publication House of Petroleum Industry, 1990, 189–210.
Wu Lixin, Coal Strength Mechanism And Experimental Basic Study on Rock Pressure Infrared Detection,Doctor Thesis of Beijing Graduate School of China University of Mining & Technology (in Chinese), 1997, 5.
Geng Naiguan, Cui Chengyu, Deng Mingde, Remote sensing detection on rock fracturing experiment and the beginning of remote rock mechanics,Acta Seismologica Sinica (in Chinese), 1992, 14(suppl.):645.
Cui Chengyu, Deng Mingde, Geng Naiguan, Study on the features of spectrum radiation of rocks under different load,Chinese Science Bulletin (in Chinese), 1993, 38(6):538.
Zhi Yiqiao, Cui Chengyu, Zhang Jinkai et al., Application of infrared thermal imaging system to the basic remote sensing experiment on rock mechanics,Remote Sensing of Environment China (in Chinese), 1996, 11(3):161.
Project supported by the National Natural Science Foundation of China (Grant No. 59674004).
About this article
Cite this article
Wu, L., Wang, J. Features of infrared thermal image and radiation. Sci. China Ser. D-Earth Sci. 41, 158–164 (1998). https://doi.org/10.1007/BF02932435
- coal rock
- ground pressure
- infrared detection
- acoustic emission
- electrical resistance