THE RELATIONSHIP BETWEEN THE ELECTROMAGNETIC RADIATION(EMR) AND ROCKMASSES PARAMETERS DURING ROCK FAILURE
岩石破裂电磁辐射幅值与岩石属性参数的关系

Based on the hypothesis of the EMR created by atom perturbation resulting from propagating cracks during rock fracture, the crack length and area are calculated through fracture mechanics under small yield condition. The expression of the EMR amplitude and rock's attribute parameters is presented according to the relation between EMR amplitude and crack length and area. The dependence of the EMR amplitude on each attribute parameter is discussed. The obtained results show that the EMR amplitude increases with the elastic modulus and the influence of rock dimension on the EMR is greater than its lithology. The results of this paper are in good agreement with many experimental measurements.