Rock steep slope high-cantilever slope closing reinforcing structure and construction method thereof

Abstract

The invention discloses a rock steep slope high-cantilever slope closing reinforcing structure and a construction method thereof, and aims to effectively solve the technical problems of difficult reinforcement of a high-cantilever steep slope roadbed and high investment. The reinforcing structure comprises reinforcing piles, supporting blocks, grouting anchor rod bodies, connecting beams, metal bolts, soil retaining plates and roadbed structures, wherein the reinforcing piles are arranged in a rock foundation outside the steep slope roadbed at intervals by a certain depth; the supporting blocks are vertically arranged at intervals along the inner sides of the reinforcing piles and are fixedly connected with the reinforcing piles, and pin penetrating holes are vertically reserved in the middle of the block bodies; the grouting anchor rod bodies are vertically and transversely arranged in a stepped rock slope body at intervals, and the outer sides of the anchor rods are exposed to a certain length; the inner ends of the connecting beams are placed on the stepped rock body and fixedly connected with the exposed ends of the grouting anchor rod bodies, the outer ends of the connecting beams are placed on the supporting blocks, and the same pin penetrating holes are reserved in the positions where the pin penetrating holes are reserved in the supporting blocks; the metal bolts are arranged in the reserved pin penetrating holes on the connecting beams and the supporting blocks; the soil retaining plates are arranged on the inner sides between every two adjacent reinforcing piles;and the roadbed structures are arranged on the inner sides of the reinforcing piles and the soil retaining plates in a layered mode.

Description

technical field [0001] The invention relates to geotechnical engineering, in particular to a high-cantilever-reinforcing reinforcement structure and a construction method for a rocky steep slope. Background technique [0002] The terrain of steep slopes in mountainous areas is very common. In the construction of road projects in mountainous areas, it is difficult to completely avoid the subgrade engineering of steep slopes. Because of the height of the beam body of bridge engineering, the slopes of steep slopes need to be excavated. huge investment. The traditional steep slope subgrade project needs to set up deep and long reinforcement piles with large sections on the outside to ensure the stability and deformation control requirements of the subgrade project. Enlargement becomes more difficult, if not impossible. Therefore, it is of great significance to propose a new reinforcement structure and construction method of a high cantilever slope-receiving slope on rocky stee...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a high cantilever slope closing reinforcement structure for steep rock slopes, so as to effectively solve the technical problems of difficult reinforcement and high investment of high cantilever steep slope roadbeds

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