CN219011220U - Bored pile side grouting device - Google Patents

Abstract

The utility model provides a side grouting device for a bored pile, which comprises grouting branch pipes, wherein the upper ends and the lower ends of the grouting branch pipes are respectively provided with a reinforcing bracket and a reinforcing base for reinforcing grouting pipes, the vertical grouting pipes are placed into holes of a drilled hole, the two ends of a plurality of movable brackets are respectively hinged with a fixed bottom ring and a reinforcing ring sleeve, the reinforcing ring sleeve supports the bottom of the vertical grouting pipes, the stability of equipment in grouting is improved to a certain extent, grouting respectively passes through the plurality of vertical grouting pipes and flows into the annular grouting pipes, and as the inner cavities of the first grouting pipes and the second grouting pipes are respectively connected with the inner cavities of the annular grouting pipes, grouting can flow out through the plurality of first grouting pipes and the plurality of second grouting pipes, so that grouting between a pile body and a soil layer is tight, grouting is not influenced when other grouting openings are blocked by arranging a plurality of grouting openings, and the smooth proceeding of a subsequent grouting process is prevented from being influenced to a certain extent.

Description

Bored pile side grouting device

Technical Field

The utility model relates to the technical field of grouting equipment for cast-in-situ bored piles, in particular to a pile side grouting device for cast-in-situ bored piles.

Background

The bored pile is a pile which is made by forming pile holes in foundation soil by means of mechanical boring, steel pipe soil squeezing, manual excavation and the like on an engineering site, placing a reinforcement cage therein and pouring concrete. When the bored pile is constructed, firstly, the bored pile is drilled through equipment, then a pile frame formed by a steel bar net cage is sunk into a hole, and then concrete or reinforced concrete is poured into the hole so as to form the bored pile. In the construction process, a post grouting construction method is used, grouting pipes are buried in advance at the bottom and the side surfaces of the reinforcement cage, high-pressure grouting is carried out by a high-pressure pump within 2-30 days after pile forming, and grout is combined with soil around a pile body through the actions of infiltration, splitting, filling, compaction and the like to solidify pile bottom sediment and pile side mud skin, so that the effects of improving bearing capacity, reducing sedimentation and the like are achieved. The post grouting technology comprises post grouting at the bottom of the pile, post grouting at the side of the pile and compound post grouting at the bottom of the pile and the side of the pile.

Because the grouting condition of different soil layers is needed to be considered when grouting is performed after the pile side, generally speaking, if the upper soil layer and the lower soil layer are the same soil layer, two side grouting pipes are symmetrically arranged on the side face of the pile frame, and grouting valves are connected to the side grouting pipes for grouting the soil layer.

Therefore, it is necessary to provide a new grouting device for the pile side of the bored pile to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a pile side grouting device for a bored pile.

The utility model provides a side grouting device for a bored pile, which comprises grouting branch pipes, wherein the upper end and the lower end of each grouting branch pipe are respectively provided with a reinforcing bracket and a reinforcing base for reinforcing the grouting pipe;

the grouting branch pipe comprises a plurality of vertical grouting pipes and annular grouting pipes, wherein the vertical grouting pipes are detachably connected, the annular grouting pipes are respectively penetrated in the vertical grouting pipes, the annular grouting pipes are communicated with the inner cavities of the vertical grouting pipes, a plurality of first grouting pipes are surrounded by the outer side equidistance of the annular grouting pipes, a plurality of second grouting pipes are surrounded by the inner side equidistance of the annular grouting pipes, and the inner cavities of the first grouting pipes and the second grouting pipes are respectively connected with the inner cavities of the annular grouting pipes.

Further, the first pulp outlet pipe and the second pulp outlet pipe are oppositely arranged.

Further, the reinforcement bracket comprises an outer casing and an inner casing, the inner casing is fixed on the cast-in-place pile, the inner wall of the inner casing is fixedly connected with the vertical grouting pipe, the outer casing fixing ring is arranged on the outer surface of the inner casing, and a plurality of support columns are circumferentially equidistantly distributed on the outer surface of the outer casing.

Further, the reinforcing base comprises a fixed bottom ring, a reinforcing ring sleeve and a movable support, wherein the fixed bottom ring is fixedly connected with one side, close to the bottom, of the vertical grouting pipe, the reinforcing ring sleeve is arranged on the outer surface of the vertical grouting pipe, the movable support is provided with a plurality of reinforcing rings, and two ends of the movable support are hinged to the fixed bottom ring and the reinforcing ring sleeve respectively.

Further, one end of the annular grouting pipe far away from the vertical grouting pipe is connected with a top cover in a threaded manner.

Further, a plurality of support columns are kept away from the one end of outer protective casing is fixed respectively and wears to be equipped with branch, the bottom fixedly connected with of branch consolidates the chassis.

Compared with the related art, the grouting device for the side of the bored pile provided by the utility model has the following beneficial effects:

grouting is carried out in the vertical grouting pipes through the grouting machine, grouting flows in the annular grouting pipes through the vertical grouting pipes respectively, and due to the fact that the inner cavities of the first grouting pipes and the second grouting pipes are connected with the inner cavities of the annular grouting pipes respectively, grouting can flow out through the first grouting pipes and the second grouting pipes, grouting is carried out between a pile body and a soil layer tightly, grouting is carried out through arranging a plurality of grouting outlets when the grouting outlets are blocked, grouting is carried out through other grouting outlets, and smooth carrying out of a follow-up grouting process is prevented from being affected to a certain extent.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a pile-side grouting device for a bored pile;

FIG. 2 is a schematic structural view of a grouting branch pipe provided by the utility model;

FIG. 3 is an enlarged schematic view of the structure A shown in FIG. 2;

FIG. 4 is a schematic view of a partial structure of a grouting branch pipe according to the present utility model;

fig. 5 is a schematic structural view of the reinforcing bracket provided by the utility model.

Reference numerals in the drawings: 1. grouting branch pipes; 2. a vertical grouting pipe; 3. an annular grouting pipe; 4. a first slurry outlet pipe; 5. a second slurry outlet pipe; 6. an outer casing; 7. an inner casing; 8. a support column; 9. fixing the bottom ring; 10. a reinforcing ring sleeve; 11. a movable bracket; 12. a top cover; 13. a support rod; 14. the chassis is reinforced.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, fig. 1 is a schematic diagram of an overall structure of a pile-side grouting device for a bored pile according to the present utility model; FIG. 2 is a schematic structural view of a grouting branch pipe provided by the utility model; FIG. 3 is an enlarged schematic view of the structure A shown in FIG. 2; FIG. 4 is a schematic view of a partial structure of a grouting branch pipe according to the present utility model; fig. 5 is a schematic structural view of the reinforcing bracket provided by the utility model.

In the concrete implementation process, as shown in fig. 1-5, the upper end and the lower end of the grouting branch pipe 1 are respectively provided with a reinforcing bracket and a reinforcing base for reinforcing grouting pipes, the grouting branch pipe 1 comprises a plurality of vertical grouting pipes 2 and annular grouting pipes 3, the plurality of vertical grouting pipes 2 are detachably connected, the plurality of annular grouting pipes 3 are respectively penetrated in the vertical grouting pipes 2, the annular grouting pipes 3 are communicated with the inner cavities of the vertical grouting pipes 2, the outer sides of the annular grouting pipes 3 are equidistantly surrounded with a plurality of first grouting pipes 4, the inner sides of the annular grouting pipes 3 are equidistantly surrounded with a plurality of second grouting pipes 5, the inner cavities of the first grouting pipes 4 and the second grouting pipes 5 are respectively connected with the inner cavities of the annular grouting pipes 3, the first grouting pipes 4 and the second grouting pipes 5 are oppositely arranged, grouting respectively passes through the plurality of vertical grouting pipes 2 and flows into the annular grouting pipes 3, because the inner cavities of the first grouting pipe 4 and the second grouting pipe 5 are respectively connected with the inner cavity of the annular grouting pipe 3, grouting can flow out through the plurality of first grouting pipes 4 and the plurality of second grouting pipes 5, so that the pile body and soil layer are tightly filled after grouting, one end of the annular grouting pipe 3 far away from the vertical grouting pipe 2 is in threaded connection with a top cover 12, the reinforcing bracket comprises an outer protective cylinder 6 and an inner protective cylinder 7, the inner protective cylinder 7 is fixed on a cast-in-place pile, the inner wall of the inner protective cylinder 7 is fixedly connected with the vertical grouting pipe 2, the outer protective cylinder 6 is fixedly arranged on the outer surface of the inner protective cylinder 7 in a ring manner, a plurality of support columns 8 are circumferentially distributed at equal intervals on the outer surface of the outer protective cylinder 6, one ends of the plurality of support columns 8 far away from the outer protective cylinder 6 are respectively fixedly penetrated with a support rod 13, the bottom of the support rod 13 is fixedly connected with a reinforcing chassis 14, the reinforcing base comprises a fixed bottom ring 9, a reinforcing ring sleeve 10 and a movable bracket 11, the fixed bottom ring 9 is fixedly connected with one side, close to the bottom, of the vertical grouting pipe 2, the reinforcing ring sleeve 10 is annularly arranged on the outer surface of the vertical grouting pipe 2, the movable supports 11 are arranged in a plurality of holes for placing the vertical grouting pipe 2 into a drilled hole, two ends of the movable supports 11 are respectively hinged with the fixed bottom ring 9 and the reinforcing ring sleeve 10, and the reinforcing ring sleeve 10 supports the bottom of the vertical grouting pipe 2.

The working principle provided by the utility model is as follows: through being fixed in the bored concrete pile with interior pile casing 7, make interior pile casing 7 inner wall and vertical slip casting pipe 2 fixed connection, the surface of interior pile casing 7 is located to outer pile casing 6 solid fixed ring, the outward surface of protecting casing 6 is circumference equidistance and is distributed with a plurality of support columns 8, and support equipment through branch 13 and the reinforcement chassis 14 on the support column 8 in ground, put into the hole of drilling with vertical slip casting pipe 2, gu fixed bottom ring 9 and one side fixed connection near the bottom of vertical slip casting pipe 2, the reinforcement ring cover 10 encircles and locates vertical slip casting pipe 2 surface, the both ends of a plurality of movable support 11 are articulated with fixed bottom ring 9 and reinforcement ring cover 10 respectively, support vertical slip casting pipe 2 bottom, stability when the equipment is in the slip casting is accomplished to certain degree, carry out the slip casting through the slip casting machine in vertical slip casting pipe 2, the slip casting is respectively through a plurality of vertical slip casting pipes 2 and flow to annular slip casting pipe 3, because the inner chamber of first slip casting pipe 4 and second slip casting pipe 5 is connected with annular slip casting pipe 3 respectively, can not closely influence the appearance of the slip casting pipe when the multiple exit opening is realized in the time of a plurality of continuous grouting pipe, the pile is not filled up in the subsequent technology, the soil layer is realized through a plurality of the setting up, the appearance of the pile is not in the appearance.

It should be noted that in this document, relational terms such as "first" and "second" and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (6)

1. The device is detachably mounted on a cast-in-situ pile and is characterized by comprising a grouting branch pipe (1), wherein the upper end and the lower end of the grouting branch pipe (1) are respectively provided with a reinforcing bracket and a reinforcing base for reinforcing the grouting pipe;

the utility model provides a grouting branch pipe (1) is including a plurality of vertical grouting pipe (2) and annular grouting pipe (3), a plurality of detachable connection between vertical grouting pipe (2), a plurality of annular grouting pipe (3) wear to locate respectively in vertical grouting pipe (2), annular grouting pipe (3) with the inner chamber of vertical grouting pipe (2) is linked together, the outside equidistance of annular grouting pipe (3) is encircleed there are a plurality of first grouting pipe (4), the inboard equidistance of annular grouting pipe (3) is encircleed there are a plurality of second grouting pipe (5), first grouting pipe (4) and the inner chamber of second grouting pipe (5) respectively with annular grouting pipe (3) inner chamber is connected.

2. Bored pile side grouting device according to claim 1, characterized in that the first grout outlet pipe (4) and the second grout outlet pipe (5) are oppositely arranged.

3. The bored pile side grouting device as claimed in claim 2, wherein the reinforcing bracket comprises an outer casing (6) and an inner casing (7), the inner casing (7) is fixed on the bored pile, the inner wall of the inner casing (7) is fixedly connected with the vertical grouting pipe (2), the outer casing (6) is fixedly arranged on the outer surface of the inner casing (7) in a ring, and a plurality of support columns (8) are circumferentially equidistantly distributed on the outer surface of the outer casing (6).

4. A bored pile side grouting device according to claim 3, wherein the reinforcing base comprises a fixed bottom ring (9), a reinforcing ring sleeve (10) and a movable support (11), the fixed bottom ring (9) is fixedly connected with one side of the vertical grouting pipe (2) close to the bottom, the reinforcing ring sleeve (10) is annularly arranged on the outer surface of the vertical grouting pipe (2), the movable support (11) is provided with a plurality of movable supports (11), and two ends of each movable support (11) are respectively hinged with the fixed bottom ring (9) and the reinforcing ring sleeve (10).

5. Bored pile side grouting device as claimed in claim 4, characterised in that the end of the annular grouting pipe (3) remote from the vertical grouting pipe (2) is threaded with a top cover (12).

6. Bored pile side grouting device as claimed in claim 5, characterized in that a plurality of support columns (8) are respectively fixedly penetrated with a support rod (13) at one end far away from the outer casing (6), and the bottom of the support rod (13) is fixedly connected with a reinforcing chassis (14).

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