【摘要】 给出了青藏高原结构变形的动力学模型及其数值模拟 .模型采用了热传导、弹塑性和大变形的理论 ,利用数值方法给出了从距今 70Ma(百万年 )到现今各个历史阶段的温度场、位移场、应力场以及开裂和滑动等情况 ,得到了青藏高原陆壳的缩短、增厚和隆升之间的定量关系 ,为实现青藏高原动力学的定量研究进行了有益的尝试更多还原

【Abstract】 In this paper,a dynamical model and its numerical simulation for the structure distortion of the Qinghai-Xizang Plateau are proposed.In the model the heat conduction,elastic-plasticity with the finite displacement theory are considered.The temperature fields, the displacement fields,the stress fields,the crack and sliding for the historic times in 70 Ma years,using the numerical method,are given,and the quantity relation among the compactness,thickening and lifting is gotten.The quantitative research for the Qinghai-xizang plateau dynamics proves to be successful.更多还原