深部非线性岩石动力学的理论发展及应用

本文系统总结了爆炸等强动力作用下深部非线性岩石动力学的发展,指出在研究诱发人工地震、岩爆等动力事件时,必须考虑岩体的结构特性.通过大规模爆炸条件下的岩块基本变形特性分析,构建了岩块不可逆位移渐进演化分析模型,确定了不同爆炸当量激活块体的尺度随爆心距的关系和岩块不可逆位移大小的边界范围,提出了地下核爆炸诱发人工地震安全距离的计算方法,结合美、俄、法等地下核试验数据,综合验证了理论方法的可靠性.

The theory development and application of deep nonlinear dynamic rock mechanics

This paper systematically summarized the development of deep nonlinear rock dynamics under the action of strong dynamic loading like explosions.It also pointed out that the structural characteristics of rock mass should be considered when studying the dynamic events such as artificial earthquakes and rockburst.By analyzing the basic deformation characteristics of rock blocks under large-scale explosions,a progressive evolution model to analyze irreversible displacements of rock mass was constructed.The relationship between the sizes of activated rock blocks under explosions with different equivalent and their distance from the explosion centers was established.A calculation method to determine the safe distance of earthquakes induced by underground nuclear explosions was proposed according to the range of irreversible displacement.The validity of the theoretical methods was comprehensively verified by comparing with underground nuclear test data of the United States,Russia and France.