CN112323774A - Precast pile grouting device - Google Patents
Precast pile grouting device Download PDFInfo
- Publication number
- CN112323774A CN112323774A CN202011241106.2A CN202011241106A CN112323774A CN 112323774 A CN112323774 A CN 112323774A CN 202011241106 A CN202011241106 A CN 202011241106A CN 112323774 A CN112323774 A CN 112323774A
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- China
- Prior art keywords
- grouting
- pipe
- shell
- box
- precast pile
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a precast pile grouting device, which comprises a shell, a grouting box, a connecting piece, a grouting pipe and a grouting pipe, wherein the grouting box is vertically and fixedly suspended in the shell through the connecting piece, and the middle part of the connecting piece is provided with a fragile point which is easy to break under tension; one end of the grout inlet pipe is connected with the grouting box, and the other end of the grout inlet pipe penetrates through the upper wall of the shell and extends to the outside of the shell; the vertical side wall of the grouting box is provided with a plurality of inserting holes, the grouting pipe is elastically inserted into the inserting holes, one end of the grouting pipe is positioned in the grouting box, the other end of the grouting pipe elastically abuts against the side wall of the shell, and the side wall of the shell is provided with an extending hole positioned below the corresponding end part of the grouting pipe.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a precast pile grouting device.
Background
The existing precast pile grouting technology is described in patent number 201310527345.8 and patent name grouting precast pile and grouting method: and (3) utilizing a grouting pipe to press and inject a part of concrete (cement paste should be) into the foundation, turning up a part of concrete along the outer wall of the precast pile under the action of a slurry turning basin, finishing high-pressure grouting when the pressure of the concrete which is mixed and turned up around the outer wall of the precast pile reaches a set pressure value, and extracting the grouting pipe. In practical application, at the stake in-process down, the extrusion forms comparatively closely knit soil layer between the outer wall of precast pile and the soil layer, turns over the thick liquid in-process, and grout irregularly flows under the effect of grouting pressure, causes the thick liquid to pile up at the part easily, and there is not the problem of thick liquid in other positions for structural strength is not enough after the thick liquid solidifies.
Disclosure of Invention
The invention aims to provide a precast pile grouting device with uniform slurry spraying, which is realized by the following technical scheme:
a precast pile grouting device comprises a shell, a grouting box, a connecting piece, a grouting pipe and a grouting pipe, wherein the grouting box is vertically and fixedly suspended in the shell through the connecting piece, and the middle part of the connecting piece is provided with a fragile point which is easy to break under tension; one end of the grout inlet pipe is connected with the grouting box, and the other end of the grout inlet pipe penetrates through the upper wall of the shell and extends to the outside of the shell; the vertical side wall of the grouting box is provided with a plurality of inserting holes, the grouting pipe is elastically inserted into the inserting holes, one end of the grouting pipe is positioned in the grouting box, the other end of the grouting pipe elastically abuts against the side wall of the shell, and the side wall of the shell is provided with an extending hole positioned below the corresponding end part of the grouting pipe.
The precast pile grouting device is further designed in that the grout inlet pipe is a flexible pipe or a telescopic pipe which can be curled.
The precast pile grouting device is further designed in that the bottom wall of the shell is provided with a guide groove matched with the grouting box.
The precast pile grouting device is further designed in that the middle of the grouting pipe is provided with a longitudinally arranged pore passage, and the front part and the rear part of the grouting pipe are respectively provided with a slurry outlet hole and a slurry inlet hole which are communicated with the pore passage.
The precast pile grouting device is further designed in that the hanging piece is a straight pipe, and an annular groove is formed in the outer wall of the upper portion of the straight pipe, so that the wall thickness of the straight pipe at the annular groove is thin, and the fragile point is formed.
The precast pile grouting device is further designed in that the grout inlet pipe penetrates through the inner part of the hanging piece from the outer part of the shell to be connected with the grouting box.
The invention has the beneficial effects that:
the slip casting is original, the thick liquid is from going into the thick liquid pipe entering slip casting box, thereby the slip casting box leads to the breakable point fracture of box body weight gain because the increase of thick liquid, the slip casting box sinks in the shell, thereby the inner wall lapse of slip casting pipe edge shell extends the shell outside from stretching out the hole under the effect of elasticity and inserts, along with the continuation increase of thick liquid, the thick liquid is from the outside diffusion of slip casting pipe to the shell from getting into the soil layer under the effect of pressure, because the slip casting pipe distributes evenly, consequently, the diffusion of thick liquid in the soil layer is also relatively even, thereby the fixed effect to the precast pile after the thick liquid solidifies is better.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following figures and examples in conjunction with the description:
the precast pile grouting device comprises a shell 1, a grouting box 2, a connecting piece 3, a grouting pipe 4 and a grouting pipe 5, wherein the grouting box 2 is vertically and fixedly suspended in the shell through the connecting piece 3, and a fragile point 31 which is easy to break under tension is arranged in the middle of the connecting piece; one end of the grout inlet pipe 4 is connected with the grouting box, and the other end of the grout inlet pipe penetrates through the upper wall of the shell and extends to the outside of the shell; the vertical side wall of the grouting box is provided with a plurality of inserting holes, the grouting pipe 5 is elastically inserted into the inserting holes, one end of the grouting pipe is positioned in the grouting box, the other end of the grouting pipe elastically abuts against the side wall of the shell, and the side wall of the shell is provided with an extending hole 11 positioned below the corresponding end part of the grouting pipe.
The slip casting is original, the thick liquid is from going into the thick liquid pipe entering slip casting box, thereby the slip casting box leads to the breakable point fracture of box body weight gain because the increase of thick liquid, the slip casting box sinks in the shell, thereby the inner wall lapse of slip casting pipe edge shell extends the shell outside from stretching out the hole under the effect of elasticity and inserts, along with the continuation increase of thick liquid, the thick liquid is from the outside diffusion of slip casting pipe to the shell from getting into the soil layer under the effect of pressure, because the slip casting pipe distributes evenly, consequently, the diffusion of thick liquid in the soil layer is also relatively even, thereby the fixed effect to the precast pile after the thick liquid solidifies is better.
In particular, the slurry inlet pipe 4 is a flexible pipe or a telescopic pipe which can be curled. After the connecting piece 3 is broken, the grout inlet pipe can be elastically stretched under the action of gravity, and the grout can enter the grouting box 2 through the grout inlet pipe. The bottom wall of the shell is provided with a guide groove matched with the grouting box, so that the stable falling process of the grouting box is ensured, and the grouting pipe 5 can be smoothly extended out of the shell. The middle part of the grouting pipe is provided with a pore canal which is longitudinally arranged, and the front part and the rear part of the grouting pipe are respectively provided with a grout outlet and a grout inlet which are communicated with the pore canal. The slurry enters the pore channel through the slurry inlet hole on the grouting pipe and is discharged from the slurry outlet hole.
Specifically, the hanging part is a straight pipe, and an annular groove is formed in the outer wall of the upper portion of the straight pipe, so that the wall thickness of the straight pipe at the annular groove is thin, and the fragile point is formed. The grout inlet pipe penetrates through the inner part of the hanging piece from the outer part of the shell to be connected with the grouting box. In an initial state, the grouting box is an empty box, is light in weight and can be stably connected to the lower end of the suspension part; after the slurry enters the grouting box, the grouting box is weighted, the hanging piece is rapidly broken from the fragile point, and the grouting box is sunk at the bottom of the shell.
Claims (6)
1. A precast pile grouting device is characterized by comprising a shell, a grouting box, a connecting piece, a grouting pipe and a grouting pipe, wherein the grouting box is vertically and fixedly suspended in the shell through the connecting piece, and the middle part of the connecting piece is provided with a fragile point which is easy to break under tension; one end of the grout inlet pipe is connected with the grouting box, and the other end of the grout inlet pipe penetrates through the upper wall of the shell and extends to the outside of the shell; the vertical side wall of the grouting box is provided with a plurality of inserting holes, the grouting pipe is elastically inserted into the inserting holes, one end of the grouting pipe is positioned in the grouting box, the other end of the grouting pipe elastically abuts against the side wall of the shell, and the side wall of the shell is provided with an extending hole positioned below the corresponding end part of the grouting pipe.
2. A precast pile grouting device according to claim 1, characterized in that the grout inlet pipe is a flexible hose or a telescopic pipe.
3. A precast pile grouting device according to claim 1, characterized in that the bottom wall of the outer shell has a guide groove adapted to the grouting box.
4. The precast pile grouting device according to claim 1, wherein the middle part of the grouting pipe is provided with a longitudinally arranged hole passage, and the front part and the rear part of the grouting pipe are respectively provided with a grout outlet and a grout inlet which are communicated with the hole passage.
5. A precast pile grouting device according to claim 1, wherein the suspension member is a straight pipe, and an annular groove is formed in the outer wall of the upper portion of the straight pipe, so that the wall thickness of the straight pipe at the annular groove is thinner, thereby forming the fragile point.
6. A precast pile grouting device according to claim 5, characterized in that the grout inlet pipe is connected with the grouting box from the outside of the shell through the inside of the suspension member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011241106.2A CN112323774B (en) | 2020-11-09 | 2020-11-09 | Precast pile grouting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011241106.2A CN112323774B (en) | 2020-11-09 | 2020-11-09 | Precast pile grouting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112323774A true CN112323774A (en) | 2021-02-05 |
| CN112323774B CN112323774B (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011241106.2A Active CN112323774B (en) | 2020-11-09 | 2020-11-09 | Precast pile grouting device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603363A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Cement mixing grouting protruding sectional pile foundations and forming method |
| CN103603337A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Grouting precast pile and grouting method |
| CN104895071A (en) * | 2015-06-29 | 2015-09-09 | 山东省建筑科学研究院 | Direction-controllable grouting device and method applicable to prefabricated hollow pile |
| CN107237329A (en) * | 2017-06-12 | 2017-10-10 | 武汉大学 | Grouting device and grouting method |
-
2020
- 2020-11-09 CN CN202011241106.2A patent/CN112323774B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603363A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Cement mixing grouting protruding sectional pile foundations and forming method |
| CN103603337A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Grouting precast pile and grouting method |
| CN104895071A (en) * | 2015-06-29 | 2015-09-09 | 山东省建筑科学研究院 | Direction-controllable grouting device and method applicable to prefabricated hollow pile |
| CN107237329A (en) * | 2017-06-12 | 2017-10-10 | 武汉大学 | Grouting device and grouting method |
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| Publication number | Publication date |
|---|---|
| CN112323774B (en) | 2022-07-08 |
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