Accurate alignment and segmented lowering device for large-diameter super-long reinforcement cage and using method

Abstract

The invention belongs to the technical field of building construction, and particularly relates to an accurate alignment and subsection lowering device for a large-diameter super-long reinforcement cage and a using method. The following scheme is provided that the device comprises a bottom supporting mechanism arranged in a square shape; a moving mechanism of a square structure is slidably connected with the top of the bottom supporting mechanism; the four sides of the moving mechanism are sleeved with aligning mechanisms in a sliding mode; each aligning mechanism comprises a rectangular frameslidably connected with the moving mechanism in a sleeving mode; the frames are movably connected with rotating rods arranged in the length direction of the frames in a sleeving mode; and the tops, stretching into the inner rings of the frames, of the rotating rods are provided with a long-strip-shaped clamping plate arranged in the length direction of the frames. By means of the combined designof the accurate alignment and subsection lowering device for the large-diameter super-long reinforcement cage, installation is convenient and fast, transportation and carrying are convenient, meanwhile, and the device can be suitable for alignment and butt joint operation of the lower portions of the reinforcement cages in hole pile holes with different diameters; and the reinforcement cages and the hole pile holes are coaxial, so that the situation that the reinforcement cages are kept in a vertical state when located below is guaranteed, the operation is convenient, and the labor intensity of operators is reduced.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a device for precise alignment and segmental lowering of a large-diameter and super-long reinforcement cage and a method for using it. Background technique [0002] Cast-in-place pile is a kind of pile made by forming holes in place and pouring concrete or reinforced concrete. Commonly used ones are: (1) Bored cast-in-place piles: Use auger drilling rigs, submersible drilling rigs, etc. to pour concrete into holes on the spot to form piles. There is no vibration and no soil squeezing during construction, but the settlement of the piles is slightly larger. The auger drilling rig is suitable for cohesive soil, sandy soil and artificial filling soil above the groundwater level. The drilled soil block rises along the helical blade on the drill pipe and is discharged out of the hole. The hole diameter is about 300mm, and the drilling depth is 8-12m. Soil quality and wat...

AI Technical Summary

Problems solved by technology

[0003] When carrying out pile foundation construction, due to the deep hole pile depth, it is difficult to hoist and lower the super-long steel cage with the existing technology, and the length of the crane arm is difficult to meet the requirements. The assembly of subsections needs to solve the problem of precise alignment between each section. The current technology mainly relies on manual observation and alignment. It is difficult to perform alignment in a small space such as a pile hole. For this reason, a large-diameter and super-long steel cage is required. Alignment and Segmented Lowering

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