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选取遮放———宾川长３５０ｋｍ，深１２０ｋｍ剖面，建立不同模型，利用有限元法进行数值模拟，探讨该区地壳、上地幔的应力分布，计算表明：在线弹性介质中应力分布不仅受断层结构的控制，而且还受物性参数的控制。壳内低速层和断层属物性软弱层，应力在其边缘或邻区较硬介质内较高，与地震一般发生在软弱层与较硬层交界处或软弱层周围物性较硬的部位的特点一致。故认为低速层和断层的作用可能是地震孕育的主要物性和结构环境因素之一。怒江断裂及其上地壳底部的低速层控制着龙陵潞西的地震，金沙江红河断裂的影响及中地壳低速层的作用使大理下关地区成为地震多发地带。
Taking the length of Bingchuan as 350km and depth of 120km as the example, different models were established and numerical simulation was carried out by using the finite element method to investigate the stress distribution in the crust and upper mantle in this area. The calculation shows that the stress distribution in the elastic medium is not only affected by faults Structure control, but also by the physical parameters of the control. The low velocity layer in the shell and the physical weak layer in the fault have higher stress in the hard medium near the edge or in the adjacent area, which is consistent with the characteristics that the earthquakes generally occur at the interface between the weak layer and the hard layer or the hard object around the weak layer . Therefore, it is considered that the effect of low velocity layer and fault may be one of the main physical properties and structural environmental factors of earthquake. The Nujiang fault and its low-velocity layer at the bottom of the upper crust control the earthquake in Luxi, Longling, the impact of the Honghe fault on the Jinsha River and the low-velocity crust in the crust, making the Xiaguan area of Dali an earthquake-prone zone.