Precast lattice beam used for slope reinforcement, manufacturing method thereof and construction method for slope reinforcement adopting precast lattice beam

Abstract

The invention provides a precast lattice beam used for slope reinforcement and a construction method for slope reinforcement adopting the precast lattice beam, as well as a slope structure reinforced by the precast lattice beam and a construction method thereof. The precast lattice beam comprises a plurality of precast cross-shaped beam units which are arranged and connected in a matrix manner; each of the cross-shaped beam units comprises a transverse beam and a longitudinal beam in intersection; an anchor head part is formed in the central interacting part of each of the cross-shaped beam units; each of the anchor head parts comprises a concrete groove and a backing plate placed on the concrete groove; an anchor hole is formed in each of the concrete grooves and the backing plates; the two end parts of the transverse beam and the two end parts of the longitudinal beam of each of the cross-shaped beam units extend respectively to form L-shaped hook parts reversed in directions; the transverse beam of each of the cross-shaped beam units is connected with that of the adjacent cross-shaped beam unit in a hooking manner through the corresponding L-shaped hook parts; the longitudinal beam of each of the cross-shaped beam units is connected with that of the adjacent cross-shaped beam unit in a hooking manner through the corresponding L-shaped hook parts; therefore the precast lattice beam is formed by splicing a plurality of structures taking the shapes of the Chinese character jing. According to the precast lattice beam used for slope reinforcement, the manufacturing method thereof and the construction method for slope reinforcement adopting the precast lattice beam, the following characteristics are achieved: on-the-spot construction steps are reduced, the construction period is shortened, the standardized management production is realized, the quality is ensured, and high efficiency and environment protection are realized.

Description

technical field [0001] The invention relates to the engineering field of slope reinforcement and ecological restoration, in particular to a prefabricated lattice beam used for slope reinforcement, a manufacturing method and a construction method thereof. 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, large excavation and grading of the mountain are often encountered, and the surrounding mountains need to be cut, 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 lattice forms, convenient cr...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, when the anchor (cable) lattice beam is used to reinforce the slope, the construction method of the concrete lattice beam is usually cast-in-place, and its disadvantages are: (1) when the cast-in-place lattice beam is made, Due to the 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 low, the required construction period is relatively long; (2) There are many on-site pouring processes and many influencing factors , so that the quality of cast-in-place concrete lattice beams cannot be guaranteed; (3) the tensioning of prestressed anchor rods (cables) must wait until the external anchor structure reaches the design strength before proceeding, and the overall construction period is often due to the external anchor structure (4) When the traditional cast-in-place reinforced concrete lattice beam encounters a large anchorage force, it may be cracked at the mid-span position, resulting in a decrease in component stiffness and affecting the overall stability

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