Experimental Study on the Microwave Radiation of Stressed Rock Under Cold Sky Background

被引：0
|
作者：
Xu Z.-Y. [1 ]
Liu S.-J. [1 ]
Wu L.-X. [2 ]
Che D.-F. [1 ]
机构：
[1] School of Resources & Civil Engineering, Northeastern University, Shenyang
[2] School of Geosciences and Info-physics, Central South University, Changsha
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2020年 / 41卷 / 08期
关键词：
Cold sky background; Microwave brightness temperature; Remote sensing monitoring; Remote sensing rock mechanics; Rock disaster; Stress change;
D O I：
10.12068/j.issn.1005-3026.2020.08.019
中图分类号：
学科分类号：
摘要：
How environmental factors affect microwave radiation observation was analyzed. Based on the analysis, outdoor experiments were carried out with rock test machine, microwave radiometer, acoustic emission instrument, temperature tester and other equipment to observe microwave radiation characteristics of elastically deformed rock with cyclic loading under cold sky background. Results indicate that the microwave radiation energy changes generated from deformed rock can be detected reliably under cold sky background. In the elastically deformed granite, the microwave radiation energy changes and stress present the positive correlation, with the correlation coefficient of 0.94. The temperature change of the rock surface is positively correlated with the stress too, but the temperature change lags behind the stress change, and the microwave brightness temperature increment is much larger than the surface temperature rise per unit stress. It is verified that the changes in the internal stress state of rock can be detected by microwave observation. © 2020, Editorial Department of Journal of Northeastern University. All right reserved.
引用
收藏
页码：1180 / 1187
页数：7
相关论文
共 11 条
  • [1] Deng Ming-de, Fan Zheng-fang, Cui Cheng-yu, Et al., The experimental study for earthquake prediction by passive microwave remote sensing, Journal of Infrared and Millimeter Waves, 14, 6, pp. 401-406, (1995)
  • [2] Maki K, Takano T, Souma E., An experimental study of microwave emissions from compression failure of rocks[J], Journal of the Seismological Society of Japan,Second Series, 58, 4, pp. 375-384, (2006)
  • [3] Xu Zhong-yin, Liu Shan-jun, Wu Li-xin, Comparative study on the variation features of infrared and microwave radiation in deformation and fracture process of rock, Journal of Northeastern University (Natural Science), 36, 12, pp. 1738-1742, (2015)
  • [4] Takano T, Maeda T T., Experiment and operational evidence of earthquake detection capability by means of microwave passive sensors on satellite[J], IEEE Geoscience and Remote Sensing Letters, 6, 1, pp. 107-111, (2009)
  • [5] Maeda T, Takano T., Detection of microwave signals associated with rock failures in an earthquake from satellite-borne microwave radiometer data[C], IEEE International Geoscience and Remote Sensing Symposium, pp. 61-64, (2009)
  • [6] Chen Hao, Jin Ya-qiu, A preliminary detection of anomalous radiation of rock failures related with Yushu earthquake by using satellite-borne microwave radiometers, Remote Sensing Technology and Application, 25, 6, pp. 860-866, (2010)
  • [7] Ma Y T, Liu S J., Two-step method to extract seismic microwave radiation anomaly:case study of M<sub>S</sub> 8.0 Wenchuan earthquake[J], Eeathquake Science, 24, pp. 577-582, (2011)
  • [8] Takano T, Maeda T., Detection of microwave emission due to rock fracture as a new tool for geophysics[J], Japan Journal of Applied Geophysics, 94, pp. 1-14, (2013)
  • [9] Wang J R, O'Neill P E, Jackson T J, Et al., Multifrequency measurements of the effects of soil moisture,soil texture,and surface roughness[J], IEEE Transactions on Geoscience and Remote Sensing, 21, 1, pp. 44-51, (1983)
  • [10] Ulaby F T, Bengal T H, Dobson M C, Et al., Microwave dielectric properties of dry rocks[J], IEEE Transactions on Geoscience and Remote Sensing, 28, 3, pp. 325-336, (1990)
12