Linnancang mine-650 m windstone gate for grouting is F23 fault fracture zone the ground grouting before reinforcement engineering, the design quality is related to the ground grouting material consumption and the downhole safety. In order to ensure the slurry wall shear stability, with the pre- injection grout not leakage along the wall for the principle,  the wall thickness calculation design, shear round steel layout method is proposed and the wedge slurry wall surrounding rock grouting scheme.On the ground grouting practice, check slurry walls withstood the static pressure and underground water of the dual role of soft rock deformation pressure check slurry wall design is reasonable, construction scheme and reliable, and has some reference value to similar projects.