基于双重介质力学耦合相关的沉陷模型研究

Study on subsidence model based on double-medium mechanics coupling

在对基岩破坏状态的移动形式进行分析的基础上,基于材料力学和开采沉陷学等相关理论分别建立不同的沉陷模型并推导了开采影响下岩体的移动和变形计算公式,再通过相关耦合2种介质模型,形成了双重介质下沉空间逐层传递的开采沉陷模型,同时编制了相应的计算及可视化程序。该模型不仅能够计算岩层及地表移动变形,而且能够分析计算岩层的破坏状态和断裂高度。经实测资料证明了模型的正确性和可靠性。

Based on the analysis of the moving forms of rock damage state, different subsidence mod-els are built respectively according to the relative theories of mechanics of materials and mining subsi-dence, and the calculation formula of rock movement and deformation under the mining are derived in this dissertation. Through the two medium models of the relevant coupling, this research forms a mining subsidence model of double-medium subsidence space layered transmission. Meanwhile, the corre- sponding calculation and visualization program are also designed in this study. This model can not only calculate rock and surface subsidence, but also analyze and calculate the damage state and fracture height of rock. The model has been proved valid and reliable by comparison with experimental data.