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

Abstract

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 nail joints through bolts; and air holes are formed in the flexible surface layer, and the flexible surface layer is inflated and loaded. According to the installation and disassembly method, the assembly efficiency and assembly quality are improved, meanwhile supporting materials and soil nailing wall components can be recycled for repeated utilization, resources are saved, and environmental protection is achieved.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a method for installing and disassembling a flexible surface layer soil nail wall support. Background technique [0002] The soil nail wall is reinforced by natural soil, soil nails and steel mesh and combined with the sprayed concrete panel to form a retaining structure similar to a gravity retaining wall to resist the earth pressure behind the wall. Because the soil nail wall has the advantages of convenient application, simple construction equipment, fast construction speed and low cost, it is widely used in the construction of foundation pits and slopes. With the improvement of the country's awareness of environmental protection, more and more problems exist in the traditional soil nail wall support. After the soil nail wall completes the support function, it is directly buried in the soil, which cannot be recycled, resulting in waste of materials and soil pollution; ...

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Problems solved by technology

[0004] The flexible surface layer deforms greatly and cannot be closely attached to the slope soil, which is prone to large deformation or even destruction of the slope soil, resulting in landslides; groundwater or rainwater seeps into the slope and cannot be discharged, which is prone to slope damage and landslides; The failure of the flexible surface itself will cause the overall failure of the slope; soil nails only play a role in fixing

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