摘要
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。
This paper discusses the dynamic change of rock infrared radiation temperature field in the experiment on rock mechanical properties. With the aid of AGA782 Thermalvision it was observed that the rock surface infrared radiation temperature rised with the increase of the stress on the rock sample, and the temperature rising 2-4 degrees centigrade was measured from where the rock broke. Moreover, the whole process of the rock infrared radiation temperature field variation caused by the change of the stress was obtained. That is, with the augment of the stress exerted on the rock sample, the rock surface radiation temperature tended to rise during the elastic deformation stage and decrease during the ductile deformation stage. This is a very valuable physical phenomenon. The observation results derived from the thermal images provide the theoretical basis for the ground stress monitoring by infrared remote sensing technique.
出处
《环境遥感》
CSCD
1996年第3期161-167,T002,共8页
基金
地震科学联合基金
关键词
红外热象仪
岩石力学
遥感
基础实验
Remote sensing
Infrared radiation
Thermal imaging system
Rock mechanics
