Cast-in-situ bored pile hole bottom sediment suspension device
By designing a sediment suspender at the bottom of the bored pile, the chemical mud and sediment are mixed and suspended by the rotating impact of a semi-circular pressure plate and rubber sheet. This solves the problem of sediment not being completely removed in existing technologies, and improves the bearing capacity and construction quality of the pile foundation.
Patent Information
- Application Number
- CN202520014220.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-04
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-04
AI Technical Summary
Existing methods for removing sediment from the bottom of bored piles cannot completely eliminate it, leading to problems such as insufficient pile bearing capacity and structural settlement.
A sediment suspender for bored piles is designed, which uses the rotation and impact of a semi-circular pressure plate and rubber sheet to mix and suspend chemical mud and sediment, and achieves thorough removal of sediment through multiple impacts.
This method achieves zero sediment at the bottom of the bored pile, improves the bearing capacity of the pile foundation, and avoids the risk of settlement of the structure.
Smart Images
Figure CN223633938U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building construction, in particular to a bored pile hole bottom sediment suspender. BACKGROUND
[0002] For the bored pile, the control of the thickness of the hole bottom sediment is the key of the pile foundation construction quality control, and the excessive thickness of the sediment will not only cause the insufficient bearing capacity of the pile foundation, but also cause the serious consequences such as the excessive settlement of the structure.
[0003] The existing bored pile hole bottom sediment discharge method mainly relies on the downward impact force of the gas in the concrete conduit during the injection of the concrete to suspend the sediment, and this method can discharge most of the sediment, but cannot completely remove the hole bottom sediment. UTILITY MODEL CONTENT
[0004] The utility model aims at overcoming the above-mentioned insufficient problems, and provides a bored pile hole bottom sediment suspender.
[0005] The utility model adopts the technical scheme of realizing the above-mentioned purpose:
[0006] The bored pile hole bottom sediment suspender includes a column, a lifting lug is installed on the upper end face of the column, a rotating shaft is fixedly installed on the lower end face of the column, two semicircular pressing plates are hingedly connected on the rotating shaft, the semicircular pressing plates form a circular plane when being in the horizontal state, rubber sheets are installed on the lower end faces of the semicircular pressing plates, and the radius of the rubber sheets is greater than the radius of the semicircular pressing plates.
[0007] A guide block one is installed on the periphery of the column.
[0008] The rotating angle of the semicircular pressing plates relative to the lower end face of the column is less than 60 degrees.
[0009] The rubber sheets are fixed on the semicircular pressing plates through bolts.
[0010] A cross-shaped extension rod is installed on the lower end face of the column, and the rotating shaft is installed on the lower end face of the cross-shaped extension rod.
[0011] The cross-shaped extension rod is formed by the cross-shaped connection of four vertical plates, and a reinforcing rod is installed between the adjacent vertical plates.
[0012] A guide block two is installed on the periphery of the cross-shaped extension rod.
[0013] A lifting hole is formed in the cross-shaped extension rod.
[0014] The utility model has the characteristics of simple structure and convenient use, the opening and closing and impact of the semicircular pressing plates can realize the better mixing and suspension of the chemical mud and the sediment, and the hole bottom of the bored pile has no sediment. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is the structural schematic diagram of the utility model.
[0016] Figure 2 is the cylindrical structure schematic diagram of the utility model.
[0017] Figure 3 is the cross-shaped extension rod structure schematic diagram of the utility model.
[0018] Figure 4 is the semicircular pressing plate structure schematic diagram of the utility model.
[0019] Figure 5 is the semicircular pressing plate rotating state schematic diagram of the utility model.
[0020] Figure 6 is the use schematic diagram of the utility model.
[0021] Wherein: 1, column 2, lug 3, pivot 4, semicircular pressing plate 5, rubber sheet 6, guide block one 7, bolt 8, cross-shaped extension rod 9, reinforcing rod 10, guide block two 11, eyelet 12, concrete conduit 13, cast-in-situ pile hole bottom 14, chemical slurry 15, sediment. Specific embodiments
[0022] As Figures 1-5As shown, the utility model is a kind of bored pile hole bottom sediment suspender, suspender includes cylinder 1, the outer diameter of cylinder 1 is less than the inner diameter of concrete conduit 12, it is convenient for suspender to extend into concrete conduit 12 and work, lug 2 is welded on the upper end surface of cylinder 1, it is convenient to hoist and move the whole suspender and work, for saving material investment, reduce cost, shorten the length of cylinder 1, cross-shaped extension rod 8 is welded on the lower end surface of cylinder 1, cross-shaped extension rod 8 is welded by four vertical plates in cross shape, reinforcing bar 9 is welded between adjacent vertical plate, the upper end surface of vertical plate, reinforcing bar 9 is welded on the lower end surface of cylinder 1, holed 11 is formed in one of the vertical plate of cross-shaped extension rod 8, cooperate with lug 2 through holed 11, it is convenient for the whole suspender to be hoisted and moved outside hole, reduce hoisting height, guiding block one 6 is welded on the outer periphery of cylinder 1, guiding block two 10 is integrally formed on the outer periphery of each vertical plate of cross-shaped extension rod 8, the outer diameter of guiding block one 6, guiding block two 10 is same, and slightly less than the inner diameter of concrete conduit 12, guiding block one 6, guiding block two 10 play a guiding role when suspender extends into concrete conduit 12, one of the upper end of cross-shaped extension rod 8 is welded with rotating shaft 3, two semicircular pressing plates 4 are hinged on rotating shaft 3, two semicircular pressing plates 4 form circular plane when being in horizontal state, semicircular pressing plate 4 rotates around rotating shaft 3, and the rotation angle of its lower end surface to cross-shaped extension rod 8 is less than 60 °, so that semicircular pressing plate 4 can return to horizontal state when working impact, rubber sheet 5 is fixed on the lower end surface of semicircular pressing plate 4 by bolt 7, the radius of rubber sheet 5 is greater than the radius of semicircular pressing plate 4, the outer diameter of rubber sheet 5 is equal to the inner diameter of concrete conduit 12, rubber sheet 5 can play the role of sealing, and can increase the impact pressure of suspender downwards.
[0023] As Figure 6As shown, in working, first, the concrete conduit 12 is extended into the bottom 13 of the bored pile hole and keeps a certain distance from the bottom 13 of the bored pile hole, generally about 500mm, then the chemical slurry 14 is poured from the concrete conduit 12, and then the suspender is hoisted into the concrete conduit 12, at this time, the semicircular pressing plate 4 is rotated downward under the action of gravity, and the outer diameter thereof is slightly smaller than the inner diameter of the concrete conduit 12, so it can enter smoothly, then the suspender free falls to the bottom 13 of the bored pile hole and impacts on the chemical slurry 14, at this time, the semicircular pressing plate 4 is in a horizontal state, the circular plane formed by the two semicircular pressing plates 4 has the same inner diameter as the inner diameter of the concrete conduit 12, forming a downward pressure, under the action of the pressure, the chemical slurry 14 is mixed with and suspended in the sediment 15 of the bottom 13 of the bored pile hole, then the suspender is hoisted, the semicircular pressing plate 4 is rotated downward under the action of gravity, ensuring that there is no suction force, and the mixture of the chemical slurry 14 and the sediment 15 will not be brought up, after the suspender is hoisted for 7-8m, it is impacted again by free fall to the bottom 13 of the bored pile hole, and the process is repeated for 7-8 times, so that the chemical slurry 14 is fully mixed with and suspended in the sediment 15 of the bottom 13 of the bored pile hole, finally, the suspender is hoisted out, and the concrete is poured into the concrete conduit 12, the concrete enters the bottom 13 of the bored pile hole and rises, driving the mixture of the chemical slurry 14 and the sediment 15 to rise, until it is discharged at the hole opening.
[0024] The above merely describes a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A bored pile hole bottom sediment suspender, characterized by: The utility model provides a kind of column, the upper end surface of the column is provided with lifting lug, the lower end surface of the column is fixedly provided with rotating shaft, the rotating shaft is hingedly provided with two semicircular pressing plates, two semicircular pressing plates form circular plane when being in horizontal state, the lower end surface of semicircular pressing plate is provided with rubber sheet, and the radius of rubber sheet is greater than the radius of semicircular pressing plate.
2. The bored pile hole bottom sediment suspender according to claim 1, characterized by: The outer periphery of the column is provided with guide block one.
3. The cast-in-place pile bottom sediment suspender according to claim 1, wherein: The rotating angle of the semicircular pressing plate relative to the lower end surface of the column is less than 60°.
4. The cast-in-place pile bottom sediment suspender according to claim 1, wherein: The rubber sheet is fixed on the semicircular pressing plate by bolts.
5. The hole bottom sediment suspender for cast-in-place piles according to any one of claims 1 to 4, characterized in that: The lower end surface of the column is provided with cross-shaped extension rod, and the rotating shaft is installed on the lower end surface of the cross-shaped extension rod.
6. The cast-in-place pile bottom sediment suspender according to claim 5, wherein: The cross-shaped extension rod is connected in cross shape by four vertical plates, and reinforcing rods are installed between adjacent vertical plates.
7. The cast-in-place pile bottom sediment suspender according to claim 5, characterized by: The outer periphery of the cross-shaped extension rod is provided with guide block two.
8. The cast-in-place pile bottom sediment suspender according to claim 5, wherein: Hanging holes are formed in the cross-shaped extension rod.