Installation and disassembly method of soil nailing wall supporting on flexible surface layer

The embodiment of the invention provides an installation and disassembly method for a soil nailing wall supporting on a flexible surface layer. The installation method comprises the steps that holes are drilled in the surface of soil corresponding to positions of soil nail holes on the flexible surface layer, and first row of soil nails are arranged in the first row of holes; the flexible surfacelayer is paved, the first row of soil nail holes in the rolled flexible surface layer sleeve the first row of soil nails, the rolled flexible surface layer is expanded, so that the soil nail holes inthe flexible surface layer are paved corresponding to the soil nail holes in the surface of the soil, and soil nails are arranged in the soil nail holes paved with the flexible surface layer; soil nail joints are installed on the soil nails, and clamping grooves are formed in the soil nail joints; connecting rods are installed in the clamping grooves of the soil nail joints, and the connecting rods are fixed to the soil na