The invention provides a structure and a method for preventing
large deformation slippage of a lateral wall of a
high stress tunnel. The structure comprises a
high stress tunnel wall, high-strength low-looseness large-
diameter anchor ropes, a channel steel, a rectangular coupler and a lockset, wherein the
high stress tunnel top and bottom plate surrounding rock and two walls are combined into one integrated body by arranging a plurality of high-strength low-looseness large-
diameter anchor ropes which are connected with wall control devices; the port exposed parts of the upper and lower inclined anchor ropes penetrate through the
metal channel steels and the rectangular coupler sequentially; double-port
metal channel steels are fastened at the central area of the high stress
tunnel wall after the anchor ropes exert a high stress; and the rectangular coupler is fastened and adhered to the internal central part of the
metal channel steel, so that the
coal layer compression strength of the lateral wall of the high stress tunnel is enhanced, the
large deformation slippage of the
coal rock at the lateral wall is restricted; the support stability of two walls of the high stress tunnel is ensured; and the whole structure is simple and reasonable, high in security coefficient, convenient in material
machining and installation, low in cost, and good in effect and has wide practicability and popularization values.