CN219908941U - Grouting device for PRC precast tubular pile - Google Patents
Grouting device for PRC precast tubular pile Download PDFInfo
- Publication number
- CN219908941U CN219908941U CN202320683232.6U CN202320683232U CN219908941U CN 219908941 U CN219908941 U CN 219908941U CN 202320683232 U CN202320683232 U CN 202320683232U CN 219908941 U CN219908941 U CN 219908941U
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- Prior art keywords
- prc
- diversion
- precast tubular
- pile
- tubular pile
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 79
- 239000010959 steel Substances 0.000 claims abstract description 79
- 238000010276 construction Methods 0.000 abstract description 19
- 239000004568 cement Substances 0.000 abstract description 16
- 239000002002 slurry Substances 0.000 abstract description 13
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- 238000000034 method Methods 0.000 description 7
- 238000007569 slipcasting Methods 0.000 description 7
- 239000011150 reinforced concrete Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 239000011440 grout Substances 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a grouting device for PRC precast tubular piles, which comprises: a round hole is formed in the center of the steel backing plate; the round holes of the steel backing plate are welded and communicated with grouting steel pipes; a diversion round groove is welded and fixed at a position corresponding to the round hole at the lower end of the steel backing plate; the diameter of the diversion round groove is larger than that of the round hole; the circumferential side wall of the diversion round groove is provided with a diversion hole; a diversion steel pipe is welded at the corresponding position of the diversion hole; a fixed bracket is fixedly connected with the circumference of the grouting steel pipe; PRC precast tubular piles are sleeved on the periphery of the fixed support. According to the utility model, the grouting guide devices are preset at the pile end of the PRC precast tubular pile and the inside of the tubular pile, so that cement slurry is returned to the ground from the pile end through the gap between the side wall of the PRC precast tubular pile and the inner wall of the guide hole, thereby achieving the purpose of filling cement slurry among the pile end of the PRC precast tubular pile, the outside of the PRC precast tubular pile and the inner wall of the guide hole, ensuring reliable force transmission, and having the advantages of environmental protection, shortening the construction period, economy in manufacturing cost, safety, reliability and the like.
Description
Technical Field
The utility model relates to the technical field of foundation pit supporting engineering and pile foundation construction, in particular to a grouting device for a PRC precast tubular pile.
Background
In foundation pit support and pile foundation engineering, when constructing in harder stratum, because PRC precast tubular pile need carry out the hole post-placement of leading, can't realize stake side and pore wall close contact, consequently the cast-in-place reinforced concrete bored concrete pile scheme of choice under the general circumstances.
For the engineering with harder ground and tense construction period, if the problems can be solved, the advantages of PRC precast tubular piles can be fully exerted, and the construction of pile foundation engineering can be completed in a short time, so that the problems of longer construction period, complex construction process, higher manufacturing cost and the like caused by the cast-in-situ reinforced concrete bored concrete pile process are avoided.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a grouting device for a PRC precast tubular pile, which solves the technical problems of long construction period, complex construction and high construction cost caused by cast-in-situ reinforced concrete pouring columns because the outer wall and the inner wall of a guide hole of the PRC precast tubular pile cannot be adhered firmly and the force transfer is unreliable in a hard stratum in the technical fields of foundation pit supporting engineering and pile foundation construction in the prior art.
In order to achieve the technical purpose, the technical scheme of the utility model provides a grouting device for a PRC precast tubular pile, which comprises the following components:
a round hole is formed in the center of the steel backing plate; the round holes of the steel backing plate are welded and communicated with grouting steel pipes; a diversion round groove is welded and fixed at a position corresponding to the round hole at the lower end of the steel backing plate; the diameter of the diversion round groove is larger than that of the round hole; the circumferential side wall of the diversion round groove is provided with a diversion hole; a diversion steel pipe is welded at the corresponding position of the diversion hole; a fixing bracket is fixedly connected with the circumference of the grouting steel pipe; and the PRC precast tubular pile is sleeved on the periphery of the fixed support.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the grouting guide device is preset at the pile end of the PRC prefabricated pipe pile and the inside of the pipe pile, cement slurry is filled, and the cement slurry is returned to the ground from the pile end through the gap between the side wall and the hole wall of the pipe pile through the pile bottom guide steel pipe, so that the aim of filling cement slurry among the pile end of the pipe pile, the outer side of the pipe pile and the hole wall is fulfilled, and the force transfer is reliable.
2. The grouting device applied to the PRC precast tubular pile solves the problems that when the PRC precast tubular pile is constructed in a harder stratum, the PRC precast tubular pile is required to be placed after hole guiding, and the problems of long construction period, complex construction process, high manufacturing cost and the like caused by the cast-in-situ reinforced concrete bored concrete pile process caused by the close adhesion of the pile side and the hole wall cannot be realized.
3. The grouting device applied to the PRC precast tubular pile can replace a conventional reinforced concrete bored concrete pile construction method, has the advantages of environmental protection, shortened construction period, economical construction cost, safety, reliability and the like, and has remarkable market benefit and social benefit.
Drawings
Fig. 1 is a schematic perspective view of a grouting device applied to a PRC precast tubular pile;
fig. 2 is a schematic cross-sectional structure of fig. 1 provided in the present utility model.
Fig. 3 is a schematic diagram of a pile end grouting diversion structure provided by the utility model.
In the drawings, the list of components represented by the various numbers is as follows:
1. a pile top end plate; 2. a pile bottom end plate; 3. PRC prefabricated pipe piles; 4. grouting a steel pipe; 5, fixing a bracket; 51. a support rail; 6. a hole is led; 7. a steel backing plate; 71. a round hole; 8. a diversion circular groove; 81. a deflector aperture; 9. a diversion steel pipe; 10. cement slurry.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, 2 and 3, the present embodiment provides a grouting device applied to a PRC precast tubular pile, including: pile top end plate 1, pile bottom end plate 2, PRC precast tubular pile 3, grouting steel pipe 4, fixed bolster 5, support horizontal pole 51, draw hole 6, steel backing plate 7, water conservancy diversion circular slot 8, water conservancy diversion steel pipe 9.
The center of steel backing plate 7 is opened there is round hole 71, the round hole 71 of steel backing plate 7 with the one end welding intercommunication of slip casting steel pipe 4 makes the entering the cement thick liquid 10 of slip casting steel pipe 4 can pass round hole 71, the lower extreme round hole 71 of steel backing plate 7 correspond the position with the open end welded fastening of water conservancy diversion circular slot 8, through the cement thick liquid 10 of slip casting steel pipe 4 flows into water conservancy diversion circular slot 8, water conservancy diversion hole 81 has been seted up to the circumference lateral wall of water conservancy diversion circular slot 8, the relevant position of water conservancy diversion hole 81 with the one end welded fastening of water conservancy diversion steel pipe 9, the process water conservancy diversion circular slot 8's cement thick liquid 10 gets into water conservancy diversion steel pipe 9, the circumference fixedly connected with fixed bolster 5 of water conservancy diversion steel pipe 4, fixed bolster 5 is in order to prevent that water conservancy diversion steel pipe 4 rocks, the peripheral cover of fixed bolster 5 is equipped with PRC precast tubular pile 3, fixed bolster 5 includes a plurality of support horizontal poles 51 circumference evenly distributed and with slip casting 4, wherein, PRC evenly distributed from the fixed bolster 5 down to precast tubular pile 3.
The pile top end plate 1 is fixedly connected with one end of the PRC precast tubular pile 3, and the pile bottom end plate 2 is fixedly connected with the other end of the PRC precast tubular pile 3.
Preferably, the diameter of the diversion trench 8 is larger than the diameter of the round hole 71.
Preferably, the number of the diversion holes 81 and the diversion steel pipes 9 is plural, the number of the diversion holes 81 and the diversion steel pipes 9 are circumferentially and uniformly arranged, the outer wall of the diversion steel pipe 9 is fixedly connected with the bottom end of the steel backing plate 7, and in this embodiment, the number of the diversion holes 81 and the diversion steel pipes 9 is four.
Preferably, one end of the guide steel pipe 9 is fixedly connected with the outer wall of the guide circular groove 8, and the other end of the guide steel pipe 9 extends to the outer wall of the PRC precast tubular pile 3.
Preferably, the steel backing plate 7 is circular, the outer diameter of the steel backing plate 7 is smaller than the diameter of the guiding hole 6, and the outer diameter of the steel backing plate 7 is larger than or equal to the outer diameter of the PRC precast tubular pile 3.
Preferably, on the same horizontal plane, three supporting cross bars 51 are uniformly distributed and fixedly connected with the outer wall of the diversion steel pipe 9.
Specifically, the bottom of slip casting steel pipe 4 with steel backing plate 7 fixed connection, wherein the round hole 71 lower extreme fixedly connected with water conservancy diversion circular slot 8 of steel backing plate 7, water conservancy diversion hole 81 is seted up to the circumference of water conservancy diversion circular slot 8, water conservancy diversion hole 81 corresponding position welded fixedly connected with water conservancy diversion steel pipe 9, water conservancy diversion steel pipe 9 passes through fixed bolster 5 to be fixed, the cover is established on the fixed bolster 5 PRC precast pile 3, through right filling grout 10 in the slip casting steel pipe 4, grout 10 flows into water conservancy diversion circular slot 8, through water conservancy diversion hole 81 gets into water conservancy diversion steel pipe 9 makes grout 10 follow the pile tip passes through the PRC precast pile 3 outer wall with the clearance between the guide hole 6 inner wall flows, grout 10 is to ground, thereby makes between the outside of PRC precast pile 3 and the guide hole 6 inner wall all pack grout 10, accomplish the slip casting work of this root pile promptly.
The utility model also provides a construction method for grouting the PRC precast tubular pile, which comprises the following steps:
s1, a round hole 71 is formed in the center of the steel backing plate 7, and the bottom end of the round hole 71 is in butt welding fixation with the diversion round groove 8.
S2, a diversion hole 81 is formed in the peripheral side of the diversion round groove 8, the corresponding position of the diversion hole 81 is welded and fixed with the diversion steel pipe 9 in an aligned mode, and the diversion steel pipe 9 is welded and fixed with the bottom of the steel backing plate 7.
S3, the corresponding area of the upper end of the round hole 71 is in counterpoint welding fixation with the grouting steel pipe 4, the grouting steel pipe 4 is communicated with the round hole 71, and the periphery of the grouting steel pipe 4 is in welding fixation with the fixing support 5.
S4, inserting the grouting structure fixed by welding into the PRC precast tubular pile 3, and fixing the steel backing plate 7 and the pile bottom end plate 2 by welding.
S5, hole guiding is carried out according to the designed pile position, and the PRC precast tubular pile 3 with the grouting system installed is placed into the hole guiding 6.
S6, connecting the grouting steel pipe 4 with a grouting pump, injecting the cement slurry 10, enabling the cement slurry 10 to flow into the diversion round groove 8 through the grouting steel pipe 4, enabling the cement slurry 10 to flow out from a pile end through a gap between the outer wall of the PRC precast pile 3 and the inner wall of the guide hole 6 through the diversion steel pipe 9, and enabling the cement slurry 10 to flow back to the ground, so that the cement slurry 10 is fully filled between the pile end of the PRC precast pile 3, the outer side of the PRC precast pile 3 and the inner wall of the guide hole 6, and thus the grouting work of the pile body is completed.
Working principle: the grouting device applied to the PRC precast tubular pile provided by the utility model comprises: a round hole 71 is formed in the center of the steel backing plate 7; the round holes 71 of the steel backing plate 7 are welded and communicated with grouting steel pipes 4; a diversion round groove 8 is welded and fixed at a position corresponding to the round hole 71 at the lower end of the steel backing plate 7; the diameter of the diversion round groove 8 is larger than that of the round hole 71; the circumferential side wall of the diversion round groove 8 is provided with a diversion hole 81; a diversion steel pipe 9 is welded at the corresponding position of the diversion hole 81; a fixed bracket 5 is fixedly connected with the circumference of the grouting steel pipe 4; and the PRC precast tubular pile 3 is sleeved on the periphery of the fixed support 5. According to the utility model, the grouting guide devices are preset at the pile end of the PRC precast pile 3 and the inside of the pile, so that cement slurry 10 is returned to the ground from the pile end through the gap between the side wall of the PRC precast pile 3 and the inner wall of the guide hole 6, thereby achieving the purpose of filling the cement slurry 10 among the pile end of the PRC precast pile 3, the outside 3 of the PRC precast pile and the inner wall of the guide hole 6, and solving the problems of long construction period, complex construction process, high construction cost and the like caused by the cast-in-situ reinforced concrete bored pile process due to the fact that the guide hole needs to be placed after the PRC precast pile is constructed in a harder stratum, and the problem that the pile side and the hole wall cannot be closely adhered can not be solved.
The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made in accordance with the technical idea of the present utility model shall be included in the scope of the claims of the present utility model.
Claims (8)
1. A grouting device for a PRC precast tubular pile, comprising:
a round hole is formed in the center of the steel backing plate; the round holes of the steel backing plate are welded and communicated with grouting steel pipes; a diversion round groove is welded and fixed at a position corresponding to the round hole at the lower end of the steel backing plate; the diameter of the diversion round groove is larger than that of the round hole; the circumferential side wall of the diversion round groove is provided with a diversion hole; a diversion steel pipe is welded at the corresponding position of the diversion hole; a fixing bracket is fixedly connected with the circumference of the grouting steel pipe; and the PRC precast tubular pile is sleeved on the periphery of the fixed support.
2. The grouting device for the PRC precast tubular pile according to claim 1, wherein the diversion holes and the diversion steel pipes are multiple; the outer wall of the diversion steel pipe is fixedly connected with the bottom of the steel backing plate; the plurality of diversion holes and the diversion steel pipes are circumferentially and uniformly arranged.
3. The grouting device for the PRC precast tubular pile according to claim 1, wherein one end of the diversion steel pipe is fixedly connected with the outer wall of the diversion round groove; and the other end of the diversion steel pipe extends to the outer wall of the PRC precast tubular pile.
4. The grouting device for the PRC precast tubular pile according to claim 1, further comprising a pile top end plate and a pile bottom end plate, wherein the pile top end plate is fixedly connected with one end of the PRC precast tubular pile; and the pile bottom end plate is fixedly connected with the other end of the PRC precast tubular pile.
5. The grouting device for PRC precast tubular piles of claim 1, wherein the steel backing plate is circular; the outer diameter of the steel backing plate is smaller than the diameter of the guide hole.
6. The grouting device for a PRC precast tubular pile according to claim 1, wherein the diameter of the fixing bracket is equal to the outer diameter of the PRC precast tubular pile.
7. The grouting apparatus for PRC precast tubular piles of claim 1, wherein the fixed bracket comprises a plurality of support rails; on the same horizontal plane, a plurality of support horizontal poles are circumferentially and uniformly distributed and fixedly connected with the outer wall of the grouting steel pipe.
8. The grouting apparatus for a PRC precast tubular pile of claim 7, wherein the fixed bracket uniformly distributes a plurality of the support crossbars downward from a top end of the PRC precast tubular pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320683232.6U CN219908941U (en) | 2023-03-28 | 2023-03-28 | Grouting device for PRC precast tubular pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320683232.6U CN219908941U (en) | 2023-03-28 | 2023-03-28 | Grouting device for PRC precast tubular pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219908941U true CN219908941U (en) | 2023-10-27 |
Family
ID=88430442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320683232.6U Active CN219908941U (en) | 2023-03-28 | 2023-03-28 | Grouting device for PRC precast tubular pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219908941U (en) |
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2023
- 2023-03-28 CN CN202320683232.6U patent/CN219908941U/en active Active
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