Based on a comprehensive material and research, various factors are analyzed that influence coal depleted cities' economic development. From this analysis i
The state of deep mine rigid shaft furniture horizontal force calculation in China isintroduced and the calculating model of horizontal force is determined. Bas
The damage of the overburden is a complex nonliear mechanical problem. To immediately master the stress state of the vertical shaft in process of the damage of
This paper describes a general model for the mechanical behavior studying of general wire rope strand. An exact solution of the deformation characteristics was