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在共和地区简化的介质模型上，应用固液两相介质的本构关系，模拟计算了１９９０年共和７．０级地震的前兆特征．结果表明，模拟得到的介质状态分布、扩展变化与共和地震前可靠异常的时空分布规律大体相似．由此得知，共和地震的孕育经历了大面积弹性变形—早期的非弹性膨胀—西宁周围地区的应变软化与弹性恢复—震源附近高密度地体的非弹性膨胀—发震等过程．可以看出，它既不是一个简单的裂隙发育贯通过程，也不是孕震区非弹性体积膨胀、进水过程，而是介质多种状态此起彼伏的复杂进程，其具体程式受震源及周围地区的地质构造环境所决定．由此得出，不同地震孕育的地质构造环境不可能相同，其前兆显示的时空分布规律也必然不同．
Based on the simplified medium model in the Republic of China, the constitutive relationship of the solid-liquid two-phase medium is used to simulate the precursor features of the MS 7.0 MS 7.0 Earthquake. The results show that the distribution of the simulated medium state and the expansion change are similar to those of the reliable anomalies before the Republican earthquake. From this, we can see that the geo-earthquake of the Republican earthquake experienced large-area elastic deformation - the early inelastic expansion - strain softening and elastic recovery in the area around Xining - the inelastic expansion of high-density terrain in the vicinity of the source - the seismogenic process. It can be seen that it is neither a simple process of fracture development nor the non-elastic volume expansion and water influx in the seismogenic zone, but a complex process in which multiple states of the medium occur one after another. The specific program is affected by the source of the earthquake and the geology of the surrounding area Construction environment is determined. It can be concluded that the geological tectonic environment nurtured by different earthquakes can not be the same, and the temporal and spatial distribution of precursors is inevitably different.