中文摘要：

根据煤岩强度的统计理论和损伤力学理论,引入损伤比例系数δ,建立了受载煤岩强度的统计损伤本构方程,并对参数α和δ的意义进行了分析.在此基础上,将煤岩材料在某一变形阶段产生的电磁辐射脉冲累计数与发生全破坏的电磁辐射脉冲累计数的比值作为损伤参量,且（ε）服从威布尔分布时,推导出受载煤岩力电耦合的损伤力学修正模型.该模型能够更好地描述电磁辐射与应变之间以及应力-应变之间的关系,为电磁辐射方法预测预报煤岩动力灾害现象提供了理论基础.

英文摘要：

Based on the statistical distribution hypothesis of rock strength and damage mechanics,and by introducing a damage factor of δ,a statistical damage model on the coal or rock strength is established,and the meanings of the parameters α and δ are analyzed.On this basis,taking the ratio of the coal and rock material electromag netic radiation pulses cumulative number generated in a certain deformation stage and that of all damage as the damage parameter （ε）which follows the Weibull distribution,The paper sets up the revised damage mechanics model of coupled stress electricity of coal or rock under load,which not only embraces the primary model and but also can describe relationships among EMR,stress and strain.This model can provide theoretical foundation for predicting dynamical disasters of coal or rock in situ.