A soil nailing wall for foundation pit excavation

Abstract

The utility model discloses a kind of soil nailing walls for foundation pit excavation, including multiple soil nails, reinforcing mesh, cement paste layer and spouted concrete layer;Soil nail is anchored in the cement paste layer in soil body hole, reinforcing mesh is attached to soil surface and is fixed by the end of soil nail, spouted concrete layer covers the outer surface of reinforcing mesh.The utility model is provided by polyethylene pipe and steel pipe from inside to outside, and is connected with support claw at polyethylene pipe end, so that support claw can be used as main force component and interact with soil after stretching out, while polyethylene pipe is completely wrapped in steel pipe inside, effectively isolates the direct contact and corrosion of soil and groundwater environment to core anticorrosion component polyethylene pipe, while steel pipe provides necessary structural strength, this design significantly improves the long-term durability and safety reliability of soil nail in corrosive environment, fundamentally solves the stubborn problem that traditional metal soil nail is easily corroded in background art.

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