To prevent the instantaneous collapse of a post-curing slope surface-layer reinforcing material, by holding the post-curing slope surface-layer reinforcing material generating a landslide, etc., from a ground surface by flexible members crosswise disposed and connected to a plurality of anchor bars driven into the face of a slope, or hanging the post-curing slope surface-layer reinforcing material generating the landslide, etc., from the ground surface by flexible members extended and connected up to a stable ground on the upper side of the face of the slop when the face of the slope formed by spraying and curing a slope surface- layer reinforcing material generates a surface-layer slide, the landslide, a slide by aeration, etc.

A plurality of anchor bars 2, in which connectors 2a are formed to head sections, are driven into a ground crosswise at regular intervals under the state, in which the head sections of the anchor bars 2 are exposed onto a ground surface, in the face of a slope of the ground, etc. Flexible members 1 are coupled crosswise to the connectors 2a at the head sections of each anchor bar 2, and the flexible members 1 (1a, 1b) are arranged crosswise onto the face of the slope, to which the anchor bars 2 are driven. Meshes (b) are annexed onto the face of the slope, on which the flexible members 1 are disposed crosswise, and a slop surface-layer reinforcing material (a) such as mortar, concrete, a thick-layer base material, etc., is sprayed from the upper section of the meshes (b) and cured and the face of the slope is reinforced.