底板软岩动压巷道围岩应力分布的数值分析

The numerical analysis of the stress distribution of roadway under locomotive stress and in the soft floor strata

建立了包括底板、巷道及围岩在内的整体分析模型,应用ANSYS软件,对底板应力分布过程进行了数值模拟,初步探讨了底板应力分布及巷道的变形特点.考察了方法的可行性和模型的可靠性。通过分析和计算,确定了受采动影响下底板软岩巷道合理的维护参数,并分析了底板岩体的应力分布规律,对底板巷道的维护、修护及确定巷道的合理位置提供了有价值的指导或参考。

This thesis makes an overall analysis model of floor, mine roadway and surrounding rock, implements a numerical simulation of the distribution of floor stress's drawing process with ANSYS program, discusses the distribution of floor stress and the characteristics of surrounding rock deformation, and inspects the feasibility of the method and the credibility of the model. Through the calculations and analyses of the report, the supporting parameters of the roadway is confirmed, and the rule of stress of floor rock is analyzed, which provides important referential value for maintaining and defining the rational location of roadway.