摘要
地下球形药包爆轰后将产生很强的地震波,其传播受到多种因素的影响。把岩石介质的弹塑性帽盖模型耦合到有限差分法程序中,对一维爆轰波在非均质岩石体中的传播、演化机理进行了数值模拟与分析;着重探讨了一维应力波从“硬”岩石层进入“软”岩石层、从“软”岩石层进入“硬”岩石层时,波在形状和强度等方面的变化规律;同时探讨了岩石介质中存在的“软弱夹层”对一维应力波传播的影响。
Violent earthquake waves will be produced when an underground spherically packed explosive is blasted, and their propagation mode is affected by many factors. Based on finite difference method coupled with the famous elastic-plastic cap model of rock, numerical simulation and analyses for the propagation and evolution mechanism of 1 D detonated wave are done. The emphasis is put on the waves propagated from hard rocks into soft rocks, or from soft rocks into hard rocks. At the same time, the influences of weak intercalated bed between rock masses on 1 D stress-waves are also discussed.
出处
《中国工程科学》
2006年第5期58-62,共5页
Strategic Study of CAE
关键词
岩石介质
一维应力波
帽盖模型
传播与演化
rock medium
1 D stress-waves
cap model
propagation and evolution
