大陆活动地块的DDA+FEM三维流变分析方法的研究

Abstract Dynamics process and stability about active blocks in continent are bases of forecasting earthquakes occurrence. The method combining discontinuous deformation analyses and finite element method DDA+FEM) is an effective tool to study numerically active blocks in continent. This project on study of method for three dimensions and rheology of DDA+FEM is further perfect and improvement on base of two-dimension method, in order to make computing analyses more practical. During one year, the method dealing with contact between blocks and rheological problem under the hypotheses of small displacement is studied for preliminary, and the program on DDA+FEM for three dimension and rheology is made up. The tentative calculating indicates that the program may be used to analyze numerically motion and deformation as well as stability about active blocks in continent.

本项目针对大陆活动地块，研究DDZ+FEM三维流变分析方法；在几大板块相互作用和岩石圈植阕饔帽尘跋拢芯炕钡厍疃乜榈脑硕捅湫危Ｄ夂驮げ飧玫厍卣鸬那ㄒ乒媛珊突疃浴Ｋ⒌腄DA+FEM三维流变程序是研究大陆活动地块的有力工具；对华北地区的研究是在大陆动力学方面的一个新尝试和新贡献。