Protective method and structure for preventing rockfall dangers at high and steep slope of mountain road

Abstract

The invention discloses a protective method and structure for preventing rockfall dangers at a high and steep slope of a mountain road. A plurality of arch-shaped frames (1) are mounted on a road surface (9), each arch-shaped frame (1) is connected by a connecting beam (2), support ribs (3) are installed to form a canopy frame skeleton, and the canopy frame is connected with a foundation through an independent foundation (7) and foundation joint bars (8). A reinforced steel net (6) is paved and hung on the scaffold framework to serve as a stone blocking buffer of the canopy frame structure, and the reinforced steel net (6) is composed of a steel wire rope net and a steel wire net; the steel wire net is hung on the surface of the steel wire rope net, and the meshes of the two nets are different. The protective method and structure provided by the invention overcomes poor constructability of a slope safety netting system, overcomes defects of a traditional reinforced concrete shed tunnel having heavy self weight and high requirement on the bearing force of the foundation, has the advantages of convenient construction, low cost and reliable protection, and is worthy of popularization.

Description

technical field [0001] The invention relates to a road safety protection method and structure, in particular to a method and structure for protection against rockfall hazards on high and steep side slopes of mountain roads. Background technique [0002] The high and steep slopes of mountainous roads along rivers and mountains, tunnel entrances, etc., often have potential hazards such as falling rocks and falling blocks. For the hazards of rockfall and falling blocks on road slopes, slope flexible protection systems (including active protection and passive protection) or reinforced concrete shed structures are generally used for protection. The slope flexible protection system has the advantages of standardized module assembly, fast construction, and easy repair. However, for high and steep highway slopes, the use of the slope flexible protection system may be limited by terrain conditions, and the implementation conditions are not available or the construction is difficult, ...

AI Technical Summary

Problems solved by technology

The slope flexible protection system has the advantages of standardized module assembly, fast construction, and easy repair. However, for high and steep highway slopes, the use of the slope flexible protection system may be limited by terrain conditions, and the implementation conditions are not available or the construction is difficult, resulting in engineering costs. Although the traditional reinforced concrete shed structure has good protection effect against rockfall and falling blocks, its backside is a solid concrete slab, and the top needs to be backfilled with earth and rocks as a buffer layer, so the entire shed structure is self-heavy. The requirement for the bearing capacity of the outer column foundation is high, and for the mountain road section, it is often necessary to use pile foundation, the construction period is long, and the project cost is high

Therefore, the existing technical solutions for the hazard protection of high and steep slopes from falling rocks and falling blocks are still unsatisfactory.

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