用弹性板理论建立地表沉陷预计模型

ESTABLISHING A GROUND SETTLEMENT PREDICTION MODEL WITH ELASTIC SLAB THEORY

基于矿山开采的实际情况,将上覆受采动影响的岩层假设成弹性薄板,应用弹性板理论,建立了开采沉陷中的走向和倾向主断面预计模型以及地表全断面预计模型。研究结果表明,用弹性板理论建立的预计模型具有与其他模型相似的性质,并且简单、直观、易用,克服了以往预计模型关于拐点的对称性,更符合实际。最后,用实例证明了该模型的应用效果。

Base on the mining practice,supposing the overlying strata as a elastic slab,the tend towards main section plane prediction model,the incline main section plane prediction model and the ground full section subsidence prediction model with elastic slab theory.Result shows that the models have the same characters as other models,also they have are established the following characteristics:briefness,distinctness and easy use.The models overcome the demerit of symmetry about inflexion in the old models,and accord well with the mining practice.Finally,the applied effect of the models are proved with a practical engineering.