CN107503350B - Pile end grouting device for multipoint pouring - Google Patents
Pile end grouting device for multipoint pouring Download PDFInfo
- Publication number
- CN107503350B CN107503350B CN201710659042.XA CN201710659042A CN107503350B CN 107503350 B CN107503350 B CN 107503350B CN 201710659042 A CN201710659042 A CN 201710659042A CN 107503350 B CN107503350 B CN 107503350B
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- Prior art keywords
- grouting
- slurry
- pipe
- valve
- way valve
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- 239000002002 slurry Substances 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims description 21
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000007569 slipcasting Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
Landscapes
- Engineering & Computer Science (AREA)
- General 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)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a multi-point pouring pile end grouting device which comprises a conveying main pipe for conveying slurry, a plurality of conveying branch pipes connected to the conveying main pipe and a grouting device connected to the conveying branch pipes, wherein the grouting device comprises a pipe body, a slurry inlet for connecting the grouting pipe is arranged in the middle of the pipe body, two slurry outlets are arranged at two ends of the pipe body, each slurry outlet is connected with a slurry outlet pipe, the ports of the two slurry outlets extend to different positions so as to perform grouting to different positions, and the two slurry outlets are provided with a first one-way valve and a second one-way valve. By adopting the technical scheme, each conveying branch pipe is inserted into different positions in the concrete gap, and the two grouting pipes on the grouting device connected with each conveying branch pipe are also respectively inserted into different positions, so that multi-point grouting can be realized, grouting efficiency is improved, and grouting is more uniform.
Description
Technical Field
The invention relates to a multi-point pouring pile end grouting device, and belongs to the technical field of pile end post grouting construction of pile foundation.
Background
The post grouting technology of the cast-in-place pile is widely used in China at present, can effectively improve the bearing capacity of the cast-in-place pile, can generally improve the bearing capacity by more than 25% after grouting, simultaneously improves the quality of a soil body bearing layer at the bottom of the pile, ensures the design bearing capacity requirement of the pile, and can not replace one steel bar at the position. The grouting pipe is a pre-buried grouting pipe system and is used for permanently sealing construction joints, cold joints, pipe seepage joints, gaps between ground walls and the like in concrete. The grouting pipe has the main function of helping concrete to be poured into various empty seams, so that the grouting pipe can be completely sealed, thereby preventing fracture, displacement and deformation, and better protecting pile foundations and bearing objects on the pile foundations. In particular, the problem of joints between new concrete and old concrete can be well solved by the grouting pipe. And because the grouting pipe is simpler in installation, workers can construct on site at any time according to the needs without using complex installation equipment, the operation process is also very simple, the grouting pipe is used for grouting the gaps, and the effect of the grouting pipe is not influenced by concrete. The existing grouting pipe is only a conveying pipe, single-point grouting is carried out on gaps, no non-return function is achieved, and uneven grouting and slurry countercurrent phenomena are easy to occur in the grouting process.
Disclosure of Invention
Therefore, the invention aims to overcome the defects in the prior art and provide a multi-point grouting type grouting device with a non-return function.
In order to achieve the above object, the multi-point grouting pile end grouting device comprises a conveying main pipe for conveying slurry, a plurality of conveying branch pipes connected to the conveying main pipe, and grouting devices connected to the conveying branch pipes, wherein each grouting device comprises a pipe body, a slurry inlet for connecting grouting pipes is arranged in the middle of each pipe body, two slurry outlets are formed in two ends of each pipe body, each slurry outlet is connected with a slurry outlet pipe, ports of the two slurry outlets extend to different positions so as to be capable of grouting slurry to different positions, a first one-way valve and a second one-way valve are arranged at the two slurry outlets, a piston is arranged in the middle of the inside of each pipe body, each piston comprises an inner cylinder end plate and a first end plate and a second end plate, sealing rings are arranged on the inner sides of the slurry inlets, a pressing plate is arranged on one side of each sealing ring, which is close to the inner cylinder, a groove is formed in the inner cylinder, and the two pressing plates are arranged on one side, which is close to the inner cylinder, of each pressing plate is capable of pressing the rolling roller or the rolling roller, and the rolling roller can be pressed down on the pressing plate or the rolling roller; the first one-way valve and the second one-way valve are identical in structure and comprise a valve inlet, one side, far away from the piston, of the valve inlet is provided with a valve plug for sealing or opening the valve inlet, the two valve plugs are connected to the first end plate and the second end plate through a connecting rod, and when the first one-way valve and the second one-way valve are in a passage state, the roller is positioned in the groove.
One side of the pressing plate, which is far away from the roller, is provided with a guide rod, the inner side wall of the pipe body is provided with a guide groove corresponding to the guide rod, the outer side of the guide rod is sleeved with a return spring, one end of the return spring props against the pressing plate, and the other end of the return spring props against the bottom of the guide groove.
The valve plug comprises a guide rod, a compression spring is sleeved on the outer side of the guide rod, and the compression spring applies a force to the valve plug in the direction of the piston.
By adopting the technical scheme, according to the multi-point grouting pile end grouting device, each conveying branch pipe is inserted into different positions in a concrete gap, and two grouting pipes on the grouting device connected with each conveying branch pipe are also respectively inserted into different positions, so that multi-point grouting can be realized, grouting efficiency is improved, and grouting is more uniform; each grouting device is used for discharging slurry outwards through two slurry outlets, the structure is simple and stable, slurry is discharged to different directions through the two slurry outlets, the two slurry outlets are respectively connected with a slurry outlet pipe for grouting slurry at different positions of a concrete gap, the grouting is uniform and efficient, a one-way valve is arranged at each slurry outlet position, and when the one-way valve of any slurry outlet is closed, the two slurry outlets stop discharging slurry simultaneously, so that slurry backflow is avoided.
Drawings
Fig. 1 is a schematic structural view of a grouting device in the present invention.
Fig. 2 is a partial enlarged view of the portion a in fig. 1.
Fig. 3 is a schematic view of a structure of a roller in a state of rolling out of a groove.
Fig. 4 is a partial enlarged view of the portion B in fig. 3.
Fig. 5 is a schematic structural view of a multi-cast-in-place pile end grouting device according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in the drawing, the present embodiment provides a multi-point grouting pile end grouting device, which comprises a conveying main pipe 200 for conveying slurry, a plurality of conveying branch pipes 201 connected to the conveying main pipe 200, and grouting devices connected to the conveying branch pipes 201, wherein the grouting devices comprise a pipe body 1, a slurry inlet 3 for connecting with a grouting pipe 2 is arranged in the middle of the pipe body 1, two slurry outlets 4 are respectively arranged at two ends of the pipe body 1, each slurry outlet 4 is connected with one slurry outlet 4a, the ports of the two slurry outlets 4a extend to different positions so as to perform grouting at different positions, the two slurry outlets 4 are provided with a first check valve 5 and a second check valve 6, a piston 7 is arranged in the middle position inside the pipe body 1, the piston 7 comprises an inner cylinder 71 and a first end plate 72 and a second end plate 73 at two ends of the inner cylinder 71, slurry inlets 72a and 73a slurry outlet are respectively arranged at two ends of the pipe body 1, each slurry outlet 4 is connected with one slurry outlet 4a, the two slurry outlets 3 are arranged at the inner cylinder 72 and 73a slurry inlet are respectively, the two inner cylinder 73 are respectively arranged at the inner cylinder 7 and the inner cylinder 7 are respectively close to one end plate 71 and the two end plates are respectively provided with a sealing ring 71 and the sealing ring 9, the sealing ring 9 is arranged at one side of the sealing ring 8 is close to the sealing ring 74, and the sealing ring 9 is capable of being pressed by the sealing ring 8, and the sealing ring 9 is arranged at one side is provided at the sealing ring 8 and the sealing ring 8 is provided at one side or the end is provided with the sealing ring 8; the first check valve and the second check valve have the same structure and comprise a valve inlet 101, a valve plug 102 for sealing or opening the valve inlet 101 is arranged on one side of the valve inlet 101 away from the piston 7, the two valve plugs 102 are connected to the first end plate 72 and the second end plate 73 through a connecting rod 103, and the roller 74 is located in the groove 91 when the first check valve and the second check valve are in a passage state.
A guide rod 92 is arranged on one side of the pressing plate 9 away from the roller 74, a guide groove 1a corresponding to the guide rod 92 is arranged on the inner side wall of the pipe body 1, a return spring 1b is sleeved on the outer side of the guide rod 92, one end of the return spring 1b abuts against the pressing plate 9, and the other end abuts against the bottom of the guide groove 1 a.
The valve plug 102 comprises a guide rod 102a, a compression spring 102b is sleeved outside the guide rod 102a, and the compression spring 102b applies a force to the valve plug 102 in the direction of the piston 7.
By adopting the technical scheme, according to the multi-point grouting pile end grouting device, each conveying branch pipe is inserted into different positions in a concrete gap, and two grouting pipes on the grouting device connected with each conveying branch pipe are also respectively inserted into different positions, so that multi-point grouting can be realized, grouting efficiency is improved, and grouting is more uniform; each grouting device is used for discharging slurry outwards through two slurry outlets, the structure is simple and stable, slurry is discharged to different directions through the two slurry outlets, the two slurry outlets are respectively connected with a slurry outlet pipe for grouting slurry at different positions of a concrete gap, the grouting is uniform and efficient, a one-way valve is arranged at each slurry outlet position, and when the one-way valve of any slurry outlet is closed, the two slurry outlets stop discharging slurry simultaneously, so that slurry backflow is avoided.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (1)
1. The utility model provides a pile end slip casting ware of multiple spot filling which characterized in that: the grouting device comprises a conveying main pipe used for conveying slurry, a plurality of conveying branch pipes connected to the conveying main pipe and a grouting device connected to the conveying branch pipes, wherein the grouting device comprises a pipe body, a slurry inlet used for connecting the grouting pipe is arranged in the middle of the pipe body, two slurry outlets are formed in two ends of the pipe body, each slurry outlet is connected with a slurry outlet pipe, ports of the two slurry outlets extend to different positions so as to perform grouting to different positions, the two slurry outlets are provided with a first one-way valve and a second one-way valve, a piston is arranged in the middle position inside the pipe body and comprises an inner cylinder, a first end plate and a second end plate at two ends of the inner cylinder, the slurry inlet is arranged between the first end plate and the second end plate, a sealing ring is arranged on the inner side of the sealing ring, which is close to the inner cylinder, an arc-shaped groove of the inner cylinder is formed in one side of the sealing ring, and a roller is arranged on one side of the pressing plate, which is close to the inner cylinder, and the roller can roll or can press the pressing plate or the sealing ring can be loosened; the first one-way valve and the second one-way valve have the same structure and comprise a valve inlet, a valve plug for sealing or opening the valve inlet is arranged on one side of the valve inlet away from the piston, the two valve plugs are connected to the first end plate and the second end plate through a connecting rod, and the roller is positioned in the groove when the first one-way valve and the second one-way valve are in a passage state; a guide rod is arranged on one side of the pressing plate, which is far away from the roller, a guide groove corresponding to the guide rod is arranged on the inner side wall of the pipe body, a return spring is sleeved on the outer side of the guide rod, one end of the return spring props against the pressing plate, and the other end of the return spring props against the bottom of the guide groove; the valve plug comprises a guide rod, a compression spring is sleeved on the outer side of the guide rod, and the compression spring applies a force to the valve plug in the direction of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659042.XA CN107503350B (en) | 2017-08-04 | 2017-08-04 | Pile end grouting device for multipoint pouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659042.XA CN107503350B (en) | 2017-08-04 | 2017-08-04 | Pile end grouting device for multipoint pouring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107503350A CN107503350A (en) | 2017-12-22 |
| CN107503350B true CN107503350B (en) | 2024-04-12 |
Family
ID=60689583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710659042.XA Active CN107503350B (en) | 2017-08-04 | 2017-08-04 | Pile end grouting device for multipoint pouring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107503350B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374106B (en) * | 2019-08-06 | 2021-03-23 | 郑州大学 | A slip casting device for bored concrete pile construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19618179A1 (en) * | 1996-05-07 | 1997-11-20 | Pabst Mija | Wall sealing injection tool |
| CN1370893A (en) * | 2002-04-04 | 2002-09-25 | 中国建筑科学研究院 | Pile end mortar pre-pressing construction method and apparatus for long screw auger drilling deposited pile and CFG pile |
| CN2861282Y (en) * | 2006-05-18 | 2007-01-24 | 欧阳甘霖 | Automatic compandor |
| CN201068543Y (en) * | 2007-07-13 | 2008-06-04 | 中铁十二局集团有限公司 | Concrete break plate mending and grouting apparatus |
| CN102808413A (en) * | 2012-08-21 | 2012-12-05 | 福州市第三建筑工程公司 | Reinforcement-replacing sectional-grouting pipe with inner piston and construction method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2015263830B2 (en) * | 2014-05-19 | 2019-11-21 | Reflex Instruments Asia Pacific Pty Ltd | Grout delivery |
-
2017
- 2017-08-04 CN CN201710659042.XA patent/CN107503350B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19618179A1 (en) * | 1996-05-07 | 1997-11-20 | Pabst Mija | Wall sealing injection tool |
| CN1370893A (en) * | 2002-04-04 | 2002-09-25 | 中国建筑科学研究院 | Pile end mortar pre-pressing construction method and apparatus for long screw auger drilling deposited pile and CFG pile |
| CN2861282Y (en) * | 2006-05-18 | 2007-01-24 | 欧阳甘霖 | Automatic compandor |
| CN201068543Y (en) * | 2007-07-13 | 2008-06-04 | 中铁十二局集团有限公司 | Concrete break plate mending and grouting apparatus |
| CN102808413A (en) * | 2012-08-21 | 2012-12-05 | 福州市第三建筑工程公司 | Reinforcement-replacing sectional-grouting pipe with inner piston and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107503350A (en) | 2017-12-22 |
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