... of atomic bonds is only a small portion of the dissipated energy in the fracture process. The plastic zone accompanying the crack tip is very small and the physical process of the crack tip has been the focus of much attention. Electromagnetic wave will emerged with rock fracturing, this phenomenon...

... content in the tunnel construction. In this article, we focus on the analysis of attenuation mechanism of electromagnetic wave in the moist red clay, and establish a mathematical model. By means of large amount of lab experiments, the relation of moisture content and dielectric constant of the red clay...

... Abstract To evaluate the surrounding rock stability in steeply dipping seams, based on the detection technology of soundwave and electromagnetic wave, the quality of surrounding rock and separation area location for roadway are identified. The degree of fracture for the inner wall of holes...