Bored pile and construction method thereof

Abstract

The invention relates to a bored pile and a construction method thereof, and relates to the technical field of building foundations. The bored pile comprises a reinforcing cage and a concrete body, wherein the reinforcing cage is provided with a reinforcing structure; the reinforcing structure comprises a plurality of bottom expanding reinforcing ribs hinged to the lower end of the reinforcing cage, a plurality of rotating guide sliding rods driving the bottom expanding reinforcing ribs to rotate and a pushing sliding piece connected with each rotating guide sliding rod; the pushing sliding piece is located above the reinforcing cage; and the lower ends of the rotating guide sliding rods are hinged to connecting rods, and the ends of the connecting rods are hinged to the bottom expanding reinforcing ribs. After the reinforcing cage is installed into a pile hole, the pushing sliding piece pushes each rotating guide sliding rod to slide downwards, consequently, each bottom expanding reinforcing rib is driven by the corresponding rotating guide sliding rod to overturn under the driving of the corresponding connecting rod, the bottom expanding reinforcing ribs overturn to enter a reamed hole at the bottom of the pile hole, then concrete is poured into the pile hole so that the concrete can solidify to form the concrete body, and the strength of the part, in a reamed hole area, of the concrete body is improved under the action of the bottom expanding reinforcing ribs, so that the structural strength of the bored pile is improved.

Description

technical field [0001] The present application relates to the technical field of building foundations, in particular to a bored pile and a construction method thereof. Background technique [0002] Energy-saving buildings refer to the low-energy buildings designed after the study of building planning zoning, groups and monomers, building orientation, spacing, solar radiation, wind direction and external space environment in accordance with the basic methods of climate design and energy conservation. The foundation construction of the building also follows this principle, and the advantages of bored piles in the construction process such as low noise and vibration make them a common option for energy-saving building construction. [0003] The formation of bored piles needs to form pile holes in the foundation soil by means of mechanical drilling, steel pipe extrusion or manual excavation on the project site, and then place steel cages in the pile holes and pour concrete. Afte...

AI Technical Summary

Problems solved by technology

However, the steel cage installed in a straight barrel cannot be filled with steel bars in the reaming area, so that the structural strength of the bored pile in the reaming area is poor, resulting in poor structural strength of the foundation

Images