近水平（层状）矿体采空后地面沉降的粘弹性分析法

针对连续与非连续两种地面沉降剖面类型，引入了岩土体的粘弹性模型分析法。根据伏埃脱粘弹模型，建立平稳控制方程，并根据覆盖层为软质岩层或是硬质岩层这两种不同情况分别求解，得出连续型和非连续型两种不同的沉降曲线。还给出了两个应用实例，分别对连续型与非连续型的沉降剖面。结果表明，非连续型剖面的计算值与实测值在剖面各处吻合较好，而连续型剖面的两值仅在沉降峰值处较接近。

Visco-Elastic Model Analysis of Surface Subsidence by Mined Stratiform Orebodies

For the two types of measured continuous and non-continuous subsidence sections, the paper introduces the analysis of visco-elastic model of rock and soil mass. The basic principle of the method is to Set up controlling equilibrium equations on the basis of the Voigt' S visco-elastic model. These equations which can be classified as two patterns, i' e. overburdens of flexible and rigid, have been solved to Obtain two different subsidence curves: continuous and non-continuous subsidence functions. Through the prediction of subsidence sections in P and H coal mines and comparison with measunred data in weibei coal field of Shanxi province,the result shows that a reasonable match between the predicted and observed subsidence in case of H and P coal mines,the calculation values of predicted subsidence section is larger than the observed section.However, the maximun of the observed subsidence is close to the predicted one. According to the detailed analysis, the similar calculation values may be caused by the average values of subsidence in coal mines.