Cast-in-situ bridge beam body steel pipe buttress foundation anchoring structure applicable for steep rock slope

Abstract

The invention provides a cast-in-situ bridge beam body steel pipe buttress foundation anchoring structure applicable for a steep rock slope. The structure comprises a plurality of steel pipe columns,a column bottom sealing plate, a concrete foundation, a plurality of anchoring steel pipes, a plurality of foundation bolts, a plurality of foundation bolt nuts, and a plurality of base plates. The structure provided by the invention has the beneficial effects that the two sides of each anchoring steel pipe are respectively located in a rock mass and the concrete foundation, and an upper support system and the lower natural rock mass are connected into an overall stable structure through the concrete foundation and the anchoring steel pipes, so that the overall high stability of a support structure on a steep rock slope foundation can be achieved, and damage of side slope construction to the environment can be reduced; a clear stress is achieved, and the functions of anchoring bodies are fully utilized, so that potential safety hazards of cast-in-situ beam body construction are reduced, and the foundation structure stability is improved; and the construction and installation are convenient, the cost is lower, and the construction is easy.

Description

technical field [0001] The invention belongs to the technical field of civil engineering foundation construction, and in particular relates to an anchoring structure for a steel pipe pier foundation of a cast-in-place large bridge body on a steep rock slope. Background technique [0002] In mountainous areas, when the railway project builds a bridge across the valley, when the girder body on it adopts the cast-in-place construction method and adopts the steel structure platform support system, when the steel pipe column foundation of the temporary pier is located on the steep rock slope, it needs to be located in the steep slope range The stability of the steel pipe column foundation within the temporary buttress is calculated. Affected by the terrain, if the conventional foundation design method is followed, the excavation and filling works will be relatively large, which will not only damage the ecological environment, but also make it inconvenient to construct on steep sl...

AI Technical Summary

Problems solved by technology

Affected by the terrain, if the conventional foundation design method is followed, the excavation and filling works will be relatively large, which will not only damage the ecological environment, but also make it inconvenient to construct on steep slopes, and also need to calculate the stability of the slope and foundation, resulting in complex calculations Increase

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