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在岩石力学性质实验中,使用AGA红外热象仪观测到随岩石应力的增加,岩石表面红外辐射温度升高;由岩石破裂处观测到岩石内部增温一般在2—4℃。也观测到随应力变化,岩石红外辐射温度场的变化过程,即随岩石应力增加,在弹性形变期其表面红外辐射温度呈上升趋势,在塑性形变期呈下降趋势,之后岩石破裂。这是很有重要意义的一种物理现象。热象仪的观测结果为红外遥感观测地应力变化提供了理论依据。
In the rock mechanics experiments, using the AGA infrared camera, it was observed that with the increase of rock stress, the infrared radiation temperature of the rock surface increased; from the rock breakage point, the internal temperature increase of the rock was generally observed at 2-4°C. The change process of rock infrared radiation temperature field with the change of stress is also observed. With the increase of rock stress, the infrared radiation temperature of the surface shows an upward trend during the elastic deformation period and a downward trend during the plastic deformation period, after which the rock ruptures. This is a very important physical phenomenon. The observation results of the thermal imager provide a theoretical basis for the change of in-situ stress in infrared remote sensing observations.