Cast-in-situ bored pile grouting device and construction method thereof

Abstract

The invention relates to a cast-in-situ bored pile grouting device and a construction method thereof. The cast-in-situ bored pile grouting device comprises a rack arranged at an orifice of a foundation pile, two sliding seats symmetrically sliding in the radial direction of the orifice on the rack, guide rollers rotationally arranged on the side walls, close to the orifice, of the sliding seats, and a driving device for driving the two sliding seats to synchronously and reversely slide are arranged on the rack; the cast-in-situ bored pile grouting device further comprises lap-joint lugs whichare fixedly connected to the outer walls of the two ends of a pipe section, a lap-joint table is arranged on the sliding seats in a lifting mode in the vertical direction, and a lifting device used for driving the lap-joint table to ascend and descend in a reciprocating mode is arranged on the sliding seats; and when concrete is poured, the spliced pipe section is inserted into the orifice, the two sliding seats are driven to synchronously get close to each other and clamp a grouting pipe, the guide rollers play a role in guiding and correcting the grouting pipe, then the lap-joint lugs on thegrouting pipe are in lap joint with the lap-joint table, then the lap-joint table is driven to ascend and descend up and down in a reciprocating mode, and smooth flowing of the concrete in the grouting pipe is guaranteed. The cast-in-situ bored pile grouting device and the construction method thereof have the effects of improving the quality of the foundation pile and saving manpower.

Description

technical field [0001] The present application relates to the field of foundation pile construction engineering, in particular to a bored pile grouting device and a construction method thereof. Background technique [0002] Bored cast-in-situ pile refers to the pile hole formed in the foundation soil by means of mechanical drilling, steel pipe extrusion or manual excavation on the project site, and a steel cage is placed in it and concrete is poured into it. Compared with the hammering method in sinking piles, the construction noise and vibration are much smaller, piles much larger in diameter than prefabricated piles can be built, and it can be used on various foundations. [0003] The patent with the authorized notification number CN207775893U discloses a sectioned grouting pipe for bored pile foundation, including: a plurality of pipe sections spliced ​​and connected to each other, and a joint is set on the lower pipe section of the two adjacent pipe sections. A partitio...

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Problems solved by technology

[0004] Regarding the above-mentioned related technologies, there are the following defects: during grouting, construction workers generally need to lift the grouting pipe up and down, so as to avoid concrete blockage in the grouting pipe, and the pipe is easy to hit the steel cage when it is lifted. The forming quality of the foundation pile is affected

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