Prefabricated lattice beam for slope reinforcement, and manufacturing and construction method thereof

Abstract

The invention provides a prefabricated lattice beam for slope reinforcement, and a manufacturing and construction method thereof. The prefabricated lattice beam is formed by a plurality of prefabricated cross beam body units in matrix arrangement, flat laying and lap joint modes; the prefabricated cross beam body units are formed by transverse beams and longitudinal beams in an intersecting mode;anchoring head parts are arranged at the cross positions of the transverse beams and the longitudinal beams; the corners of cross connectors at the junctions of the transverse beams and the longitudinal beams are each in a circular arc shape; the anchoring head parts comprise grooves and base plates placed at the grooves; and anchor holes for allowing anchor rods or anchor cables to penetrate in are formed in the grooves and the base plates correspondingly. The prefabricated lattice beam for slope reinforcement, and the manufacturing and construction method thereof have the characteristics ofsimplifying the construction steps, shortening the construction period, lowering the construction risk, realizing standardized production management, ensuring the product quality, and being economic,environment friendly and practical. The prefabricated lattice beam can replace an existing cast-in-place anchor rod (cable) lattice beam for slope reinforcement, has outstanding advantages in slope emergency rescue reinforcement, and is also suitable for quick slope reinforcement construction in a rebuilt and expanded highway.

Description

technical field [0001] The application relates to the engineering technical field of slope reinforcement and ecological restoration, in particular to a prefabricated lattice beam for slope reinforcement and its manufacturing and construction method. Background technique [0002] my country is a mountainous country. Plateaus, hills and mountains account for about 70% of my country's land area. A large number of landslides, collapses and mudslides occur every year. Furthermore, when leveling the site in civil engineering, it is often encountered in the case of large excavation and grading of the mountain body, which requires cutting of the surrounding mountain body, and the cutting operation will destroy the original balance. In order to ensure the safety of the slope and its environment, support, reinforcement and protection measures must be taken for the slope. Slope anchor (cable) lattice reinforcement technology has significant advantages such as flexible layout, various ...

AI Technical Summary

Problems solved by technology

[0004] (1) When making cast-in-place lattice beams, there are many processes such as slope excavation, formwork processing, steel bar binding, concrete pouring, and maintenance, and the overall degree of mechanization of the construction process is relatively low, resulting in the required construction period. Longer;

[0005] (2) Since there are many on-site pouring procedures and many influencing factors, the quality of cast-in-place concrete lattice beams cannot be guaranteed;

[0006] (3) The tensioning of the prestressed anchor (cable) can only be carried out after the outer anchor structure reaches the design strength, and the overall construction period is often seriously delayed due to the maintenance of the outer anchor structure;

[0007] (4) When the traditional cast-in-place reinforced concrete lattice beam encounters a large anchoring force of the anchor cable, it may be cracked at the mid-span position, resulting in a decrease in the stiffness of the member and affecting the overall stability

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