Construction process of mold-free concrete spraying beam

Abstract

The invention relates to the field of civil engineering construction, and provides a construction process of a mold-free concrete spraying beam. The construction process is used for reinforcing engineering of anchor rod lattice beams in slope protection engineering, foundation pit engineering and the like. The construction process of the mold-free concrete spraying beam comprises the following steps that A, slope treatment is carried out, specifically, a mountain body is excavated in a graded mode according to the designed slope rate, the height of each grade is 8-10m, and the slope surface isleveled or sprayed concrete is adopted for initial protection; B, anchor rod installation (including prestressed anchor rods and non-prestressed full-length bonding anchor rods) is carried out; C, full-length steel bars are arranged along the slope surface in a # shape, a square steel bar cage is formed through binding of stirrups, the sprayed concrete is sprayed back and forth for a plurality oftimes along the steel bar cage in a wet spraying mode to form the lattice beams, and the anchor rods are located at the cross joints of the lattice beams; and D, after the strength of the concrete meets the requirement, the prestressed anchor rods are tensioned and locked, the step A to the step C are repeated to enter the next grade of slope prestressed anchor rod lattice beam construction, andthe construction process is worthy of application and popularization.

Description

technical field [0001] The invention relates to the field of civil engineering construction, and in particular provides a form-free sprayed concrete beam construction process, which is used for building anchor bar lattice beam reinforcement systems for slope protection, foundation pit enclosure and other projects. Background technique [0002] In recent decades, the state has invested a lot of money in the protection of slopes, which has eliminated potential safety hazards, greatly guaranteed the safety of people's lives and property, and strongly supported socialist economic construction. [0003] Lattice beams are widely used in geotechnical engineering such as slope protection engineering and foundation pit enclosure engineering. It refers to a structure that is set on the slope to provide a reaction device for the anchor. The beam adopts the method of vertical formwork and cast-in-place, which has played a great role in the protection and treatment of slopes and landslid...

AI Technical Summary

Problems solved by technology

[0003] Lattice beams are widely used in geotechnical engineering such as slope protection engineering and foundation pit enclosure engineering. It refers to a structure that is set on the slope to provide a reaction device for the anchor. The beam adopts vertical formwork and cast-in-place method, which plays a great role in protection and treatment projects such as slopes and landslides, but its construction procedures are complicated, the construction period is long, and the cost is high, so it is not suitable for general slopes

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