In this paper, taking an old mine in Yunnan for example, the design and calculation of the span of its deep ore block room are carried out by using Mathews stability graphic analysis method, theoretical calculation me...In this paper, taking an old mine in Yunnan for example, the design and calculation of the span of its deep ore block room are carried out by using Mathews stability graphic analysis method, theoretical calculation method of roof mechanics model and large-scale three-dimensional nonlinear finite element method software 3D-σ simulation calculation method, which provides guidance for the safety production of the subsequent stopes in the mine.展开更多
文摘In this paper, taking an old mine in Yunnan for example, the design and calculation of the span of its deep ore block room are carried out by using Mathews stability graphic analysis method, theoretical calculation method of roof mechanics model and large-scale three-dimensional nonlinear finite element method software 3D-σ simulation calculation method, which provides guidance for the safety production of the subsequent stopes in the mine.
