CN216445983U - Bored concrete pile slip casting device - Google Patents

Abstract

The utility model relates to the technical field of cast-in-place pile construction, in particular to a cast-in-place pile grouting device which is arranged on a reinforcement cage and comprises a grouting pipe, a grouting pipe and a check valve, wherein the grouting pipe is fixedly arranged inside the reinforcement cage, the top of the grouting pipe is communicated with the bottom of the grouting pipe, the grouting pipe is positioned at an insertion part at the bottom, a connecting part at the top and a grout outlet part arranged between the insertion part and the connecting part, and the grout outlet part is provided with a plurality of grout injecting holes; the check valve sets up in the outside of the play thick liquid portion of grout injection pipe, and the check valve is including the rubber layer of winding in a thick liquid portion outside and be used for the clamp at fixed rubber layer head and the tail both ends, and the rubber layer is the heliciform successive layer and presses to cover the winding, and this bored concrete pile grouting device can have the effect when the slip casting and ends contrary, prevents that the injected hole from being sealed the dead condition, improves the survival rate that the grout injection pipe was buried underground.

Description

Bored concrete pile slip casting device

Technical Field

The utility model relates to the technical field of cast-in-place pile construction, in particular to a cast-in-place pile grouting device.

Background

The grouting of the cast-in-place pile is generally completed through a grouting pipe and a shooting pipe, the shooting pipe is installed at the bottom of the grouting pipe, a shooting hole is formed in the shooting pipe, a check valve is arranged at the shooting hole, and after the bottom of the shooting pipe is inserted into a pile bottom supporting layer during construction, the grouting pipe is connected with grouting equipment for grouting.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a grouting device for a cast-in-place pile, which can realize effective non-return during grouting, prevent the situation that a grouting hole is sealed, and improve the survival rate of embedding a grouting pipe.

(II) technical scheme

In order to achieve the above object, an embodiment of the present application provides a grouting device for a bored concrete pile, which is disposed on a reinforcement cage; the bored concrete pile slip casting device includes: the grouting pipe is fixedly arranged inside the reinforcement cage; the grouting pipe is arranged inside the reinforcement cage, the top of the grouting pipe is communicated with the bottom of the grouting pipe, the grouting pipe is positioned at an insertion part at the bottom, positioned at a connecting part at the top and arranged between the insertion part and the connecting part, and the grout outlet part is provided with a plurality of grout injection holes; the check valve is arranged on the outer side of the grout outlet part of the grout injection pipe and comprises a rubber layer wound on the outer side of the grout outlet part and a hoop used for fixing the head end and the tail end of the rubber layer; the rubber layer is spirally and layer-by-layer pressed, covered and wound.

In a possible implementation manner, the check valve further includes a waterproof adhesive tape wound outside the rubber layer.

In a possible implementation manner, the plurality of grout injecting holes are distributed in an annular matrix along the circumferential direction and the radial direction of the grout outlet part.

In one possible implementation, the bottom of the insert is flat.

In one possible implementation, the length of the insertion portion is 20 cm.

In one possible implementation, the top of the connecting part is connected with the bottom of the grouting pipe through screw threads.

In one possible implementation manner, the grouting pipe is welded and fixed with the reinforcement cage.

In a possible implementation manner, two oppositely-arranged grouting pile devices are arranged in each reinforcement cage.

(III) advantageous effects

Compared with the prior art, the utility model provides a grouting device for a cast-in-place pile, which has the following beneficial effects: this bored concrete pile slip casting device, put into the downthehole back of stake with the steel reinforcement cage, the portion of inserting of slip casting pipe inserts in the pile base holding force layer, slip casting union coupling grouting equipment, squeeze into the slip casting pipe and the slip casting pipe with the mortar, the mortar props up the rubber layer of check valve under the effect of pressure and pours into the stake into through the slip casting hole into downthehole, accomplish the slip casting, fix the head and the tail on rubber layer through the clamp, it is inseparable to guarantee the rubber layer winding, can effectively play contrary effect, prevent that the slip casting hole from being shutoff, ensure that follow-up secondary slip casting can go on smoothly, improve the survival rate that bored concrete pile buries underground.

Drawings

Fig. 1 is a schematic structural diagram illustrating a grouting device for a cast-in-place pile and a reinforcement cage according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram illustrating a grouting device for a cast-in-place pile according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a grouting pipe and a shooting pipe provided by an embodiment of the application;

FIG. 4 is a schematic cross-sectional view illustrating a slurry outlet and a check valve provided in an embodiment of the present disclosure;

in the drawings, the reference numbers:

1. a reinforcement cage;

2. a grouting pipe;

3. a shooting pipe; 31. an insertion portion; 32. a connecting portion; 33. a pulp outlet part; 331. a grout injection hole;

4. a check valve; 41. a rubber layer; 42. clamping a hoop; 43. a waterproof adhesive tape.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present application provides a grouting device for a bored concrete pile, which is disposed on a reinforcement cage 1; the bored concrete pile grouting device includes:

the grouting pipe 2 is fixedly arranged inside the reinforcement cage 1;

the grouting pipe 3 is arranged inside the reinforcement cage 1, the top of the grouting pipe 3 is communicated with the bottom of the grouting pipe 2, the grouting pipe 3 is arranged at an insertion part 31 at the bottom, a connecting part 32 at the top and a grout outlet part 33 arranged between the insertion part 31 and the connecting part 32, and the grout outlet part 33 is provided with a plurality of grouting holes 331;

the check valve 4 is arranged on the outer side of the grout outlet part 33 of the grout injecting pipe 3, the check valve 4 comprises a rubber layer 41 wound on the outer side of the grout outlet part 33 and a hoop 42 used for fixing the head end and the tail end of the rubber layer 41, and the rubber layer 41 is spirally pressed, covered and wound layer by layer.

In this application, put into the downthehole back of stake with steel reinforcement cage 1, penetrate in the portion 31 of inserting of grout pipe 3 inserts the pile base holding force layer, slip casting pipe 2 connects grouting equipment, squeeze into slip casting pipe 2 and penetrate among the grout pipe 3 with the mortar, the mortar props up check valve 4's rubber layer 41 and pours into the stake through penetrating hole 331 under the effect of pressure downthehole, accomplish the slip casting, fix the head and the tail of rubber layer 41 through clamp 42, it is inseparable to guarantee the winding of rubber layer 41, can effectively play contrary effect, prevent to penetrate hole 331 by the shutoff, ensure that follow-up secondary slip casting can go on smoothly, improve the survival rate that bored concrete pile buries underground.

Specifically, rubber layer 41 in this application can adopt the 5cm wide rubber band with the one deck spiral winding in the outside of going out thick liquid portion 33, accomplishes the winding back of rubber layer 41, fixes the head and the tail both ends of rubber layer 41 respectively through clamp 42 for rubber layer 41 closely twines in the play thick liquid portion 33 of shooting pipe 3.

In the embodiment of the present application, the check valve 4 further includes a waterproof adhesive tape 43 wound outside the rubber layer 41.

In this application, consolidate rubber layer 41 once more through waterproof adhesive tape, ensure the fixed effect of rubber layer 41, can protect rubber layer 41 moreover, prevent that rubber layer 41 from damaging and influencing contrary effect under the circumstances of colliding with and cutting the piece and rubbing.

Specifically, the waterproof adhesive tape is wound by at least 3 layers.

In the embodiment of the present application, the plurality of slurry injection holes 331 are distributed in an annular matrix along the circumferential direction and the radial direction of the slurry outlet portion 33.

In the application, the grout injecting holes 331 are arranged in a quincunx shape, wherein the number of the grout injecting holes 331 is 20-25, the uniformity of grout injection is guaranteed, the rubber layer 41 can be opened to facilitate mortar guiding, and the grouting effect is improved.

In the embodiment of the present application, the bottom of the insertion portion 31 is flat.

In the present application, the insertion portion 31 is flat, and is conveniently inserted into the bearing layer of the pile bottom.

Optionally, the inserting portion 31 may adopt a bottom opening form, and in the grouting process, a small amount of mortar may be guided out through the bottom opening of the inserting portion 31, but the mortar discharging of the mortar discharging portion 33 is not affected, because the pressure at the bottom opening of the inserting portion 31 is far greater than the pressure at the mortar injecting hole 331, the rubber layer 41 can be guaranteed to be spread.

In another alternative embodiment, the bottom of the insertion portion 31 is a dead-end structure, and the insertion portion 31 only functions as a bottom supporting layer of the inserted pile.

In the embodiment of the present application, the length of the insertion portion 31 is 20 cm.

In this application, the depth that portion 31 inserted the pile base holding power layer is 20cm, guarantees the fixed effect to shooting thick liquid pipe 3.

In the embodiment of the present application, the top of the connecting portion 32 is screwed to the bottom of the grouting pipe 2.

Specifically, the connecting part 32 of the shooting pipe 3 is connected with the bottom of the grouting pipe 2 through a screw thread, so that the installation is convenient.

In the embodiment of the application, the grouting pipe 2 is welded and fixed with the reinforcement cage 1.

Specifically, slip casting pipe 2 adopts the fixed setting in steel reinforcement cage 1 of mode of spot welding, makes things convenient for the preparation shaping.

Optionally, the grouting pipe 2 may also be fixed inside the reinforcement cage 1 by using a wire binding method.

In the embodiment of the application, every all be provided with two relative settings in the steel reinforcement cage 1 bored concrete pile slip casting device.

When grouting, the two grouting pipes 2 are connected in parallel to perform grouting synchronously, so that the grouting uniformity is ensured.

This bored concrete pile grouting device is when using, put into the downthehole back of stake with steel reinforcement cage 1, the portion of inserting 31 of shooting thick liquid pipe 3 inserts in the pile foundation holding force layer, slip casting pipe 2 connects grouting equipment, squeeze into slip casting pipe 2 and shooting thick liquid pipe 3 with the mortar, the mortar props up check valve 4's rubber layer 41 and pours into the stake downthehole through shooting thick liquid hole 331 under the effect of pressure, accomplish the slip casting, fix the head and the tail of rubber layer 41 through clamp 42, it is inseparable to guarantee that rubber layer 41 twines, can effectively play the effect of contrary, prevent that shooting thick liquid hole 331 is blocked, ensure that follow-up secondary slip casting can go on smoothly, improve the survival rate that bored concrete pile buries underground, slip casting pipe after the slip casting is accomplished, shooting thick liquid pipe stays in the bored concrete pile with the steel reinforcement cage.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest manner such that "on … …" means not only "directly on something", but also includes the meaning of "on something" with intervening features or layers in between, and "above … …" or "above … …" includes not only the meaning of "above something" or "above", but may also include the meaning of "above" or "above" with no intervening features or layers in between (i.e., directly on something).

Furthermore, spatially relative terms, such as "below," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as well.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A grouting device for a cast-in-place pile is arranged on a reinforcement cage (1); it is characterized in that the grouting device for the cast-in-place pile comprises:

the grouting pipe (2) is fixedly arranged inside the reinforcement cage (1);

the grouting pipe (3) is arranged inside the reinforcement cage (1), the top of the grouting pipe (3) is communicated with the bottom of the grouting pipe (2), the grouting pipe (3) is positioned at an insertion part (31) at the bottom, a connecting part (32) at the top and a grout outlet part (33) arranged between the insertion part (31) and the connecting part (32), and the grout outlet part (33) is provided with a plurality of grouting holes (331); and

the check valve (4) is arranged on the outer side of the grout outlet part (33) of the grout injection pipe (3), and the check valve (4) comprises a rubber layer (41) wound on the outer side of the grout outlet part (33) and a clamp (42) used for fixing the head end and the tail end of the rubber layer (41);

wherein the rubber layer (41) is spirally laminated, covered and wound layer by layer.

2. A grouting pile grouting device according to claim 1, characterised in that said non-return valve (4) further comprises a waterproof tape (43) wound outside said rubber layer (41).

3. A grouting pile grouting device according to claim 1, characterised in that said plurality of grouting holes (331) are distributed in an annular matrix in the circumferential and radial directions of said grout outlet portion (33).

4. A grouting pile grouting device according to claim 1, characterised in that the bottom of said insertion portion (31) is flat.

5. A cast-in-place pile grouting device according to claim 1, characterised in that the length of the insertion part (31) is 20 cm.

6. A bored pile grouting device according to claim 1, characterized in that the top of the connecting portion (32) is screwed to the bottom of the grouting pipe (2).

7. A bored pile grouting device according to claim 1, characterized in that said grouting pipe (2) is welded and fixed to said reinforcement cage (1).

8. A bored pile grouting device according to claim 1, characterized in that two opposite bored pile grouting devices are provided in each reinforcement cage (1).

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