During the process of rock compression up to failure, the microwave radiation of rocks was observed and studied by remote sensing. The microwave radiometers for wave lengths of 8 mm, 2 cm and 10 cm were used. The expe...During the process of rock compression up to failure, the microwave radiation of rocks was observed and studied by remote sensing. The microwave radiometers for wave lengths of 8 mm, 2 cm and 10 cm were used. The experiments show that the luminance temperature of microwave radiation of rocks increases with increasing stress during loading, and that the increase speeds up just before rock failure. This phenomenon can be considered as a new precursor of rock failure. The concept of remote sensing rock mechanics (or remote sensing rock physics) advanced on the experimental basis of infrared remote sensing observation during rock failure has been enriched by these new experimental results. Its contents have been extended from infrared remote sensing to microwave remote sensing, and the prospects of applying remote sensing rock mechanics in the study of earthquake and rock burst prediction have also been broadened.展开更多
In the study on the electromagnetic radiation of rocks, we have discovered that the infrared-radiation and the microwave radiation of rocks vary with the stress state of rocks. If thisphysical phenomenon also exists i...In the study on the electromagnetic radiation of rocks, we have discovered that the infrared-radiation and the microwave radiation of rocks vary with the stress state of rocks. If thisphysical phenomenon also exists in steel materials, the stress on the steel building and itsdistribution can be measured by remote sensing method. Therefore, we have made experi-ments on the steel materials, which have led to the result that the infrared radiant energyand the microwave radiant energy of the steel materials vary with the stress state of steelmaterials.展开更多
文摘During the process of rock compression up to failure, the microwave radiation of rocks was observed and studied by remote sensing. The microwave radiometers for wave lengths of 8 mm, 2 cm and 10 cm were used. The experiments show that the luminance temperature of microwave radiation of rocks increases with increasing stress during loading, and that the increase speeds up just before rock failure. This phenomenon can be considered as a new precursor of rock failure. The concept of remote sensing rock mechanics (or remote sensing rock physics) advanced on the experimental basis of infrared remote sensing observation during rock failure has been enriched by these new experimental results. Its contents have been extended from infrared remote sensing to microwave remote sensing, and the prospects of applying remote sensing rock mechanics in the study of earthquake and rock burst prediction have also been broadened.
基金Project supported by Commission of Science, Technology and Industry for National Defence and Joint Seismological Science Fund.
文摘In the study on the electromagnetic radiation of rocks, we have discovered that the infrared-radiation and the microwave radiation of rocks vary with the stress state of rocks. If thisphysical phenomenon also exists in steel materials, the stress on the steel building and itsdistribution can be measured by remote sensing method. Therefore, we have made experi-ments on the steel materials, which have led to the result that the infrared radiant energyand the microwave radiant energy of the steel materials vary with the stress state of steelmaterials.
