CN216075083U - High-pressure jet grouting pile - Google Patents
High-pressure jet grouting pile Download PDFInfo
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- CN216075083U CN216075083U CN202122096057.4U CN202122096057U CN216075083U CN 216075083 U CN216075083 U CN 216075083U CN 202122096057 U CN202122096057 U CN 202122096057U CN 216075083 U CN216075083 U CN 216075083U
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- slurry
- guniting
- hole
- groove
- drill bit
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- 239000002002 slurry Substances 0.000 claims abstract description 64
- 238000005507 spraying Methods 0.000 claims abstract description 32
- 230000000903 blocking effect Effects 0.000 claims abstract description 20
- 238000007790 scraping Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 239000002689 soil Substances 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 7
- 239000007921 spray Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000004568 cement Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000004570 mortar (masonry) Substances 0.000 abstract description 2
- 239000011440 grout Substances 0.000 description 22
- 238000005553 drilling Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a high-pressure jet grouting pile, which comprises a drill rod and a slurry baffle plate, wherein the drill rod is connected with the slurry baffle plate; a guniting pipeline is arranged inside the drill rod; one end of the drill rod is provided with a drill bit; grooves are respectively arranged on two sides of the upper part of the drill bit; one side in the groove is provided with a guniting hole, and the guniting pipelines are respectively connected with the guniting holes; the top end of the pulp baffle is hinged with the upper end of the pulp spraying hole; the slurry blocking plate blocks the slurry spraying hole in a vertical state, and one side of the slurry blocking plate is attached to one side of the groove. The utility model realizes that the empty pile section does not spray mortar and reaches the designed elevation of foundation treatment, and when the drill bit rotates, the slurry baffle plate rubs with soil to open the slurry spraying hole, thereby realizing the purpose of not blocking the slurry spraying, saving cement slurry, reducing construction cost and having obvious economic benefit; simultaneously, the mud liquid in the drill guniting hole is effectively prevented from flowing back after the pile driving is finished, the later guniting hole is blocked, the device improves the working efficiency of pile driving, and the device is simple in structure, low in manufacturing cost, practical and convenient.
Description
Technical Field
The utility model belongs to the technical field of construction engineering construction, and relates to a high-pressure jet grouting pile.
Background
The existing rotary spraying pile usually drills and sprays while drilling in the pile construction process so as to prevent the blockage of a guniting hole, and a hollow pile section (the guniting is required to be started before the drilling) often appears. The concrete is spouted on the pile section surface owing to empty pile section to traditional jet grouting pile, has formed hard soil body, causes the later stage excavation difficulty, influences the construction progress, increases construction cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-pressure rotary jet grouting pile which does not need to spray grout at an empty pile section part and can effectively prevent a grout spraying hole from being blocked aiming at the defects of the prior art.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
a high-pressure jet grouting pile comprises a drill rod and a slurry baffle plate; a guniting pipeline is arranged inside the drill rod; one end of the drill rod is provided with a drill bit; grooves are respectively arranged on two sides of the upper part of the drill bit; one side in the groove is provided with a guniting hole, and the guniting pipelines are respectively connected with the guniting holes; the top end of the pulp baffle is hinged with the upper end of the pulp spraying hole; the slurry blocking plate blocks the slurry spraying hole in a vertical state, and one side of the slurry blocking plate is attached to one side of the groove.
As a further technical improvement, the surface of the pulp baffle is flush with the surface of the groove; and a scraping rod is arranged at the bottom of the slurry baffle. The scraping rod can improve the friction with soil, so that the pulp baffle can be more effectively opened or closed.
As a further technical improvement, the surface of the pulp baffle is higher than the surface of the groove. Effectively improve the friction effect of fender and earth, can more effectual opening or close the fender.
As a further technical improvement, the bottom of the drill bit is provided with threads. The screw thread is used for facilitating the drill bit to be more stable during drilling and has a good positioning effect.
As a further technical improvement, two sides of the groove are respectively rounded. Effectively reduce the resistance of recess and earth, reduce the consumption.
As a further technical improvement, the edge of the baffle adopts circular arc transition.
The use method of the high-pressure jet grouting pile comprises the following steps:
s1: before the pile driver is started, a drill bit is aligned to a position needing pile driving, in an initial state, a slurry baffle is in a vertical state due to the action of gravity, one side of the slurry baffle is tightly attached to one side of a groove, and a slurry spraying hole is blocked by the slurry baffle;
s2: concrete grout is introduced into the drill rod, and the concrete grout gushes towards the grout spraying hole, so that the concrete grout is blocked by the grout blocking plate;
s3: the pile machine is started, the drill rod rotates, the concrete grout is blocked by the grout blocking plate in the empty pile section, and meanwhile, the concrete grout can also push against the grout blocking plate, so that the concrete grout is not easy to rotate and cannot be sprayed out;
s4: drilling a hollow pile section, inserting a drill bit into soil, rubbing a slurry baffle plate with the soil, sliding the bottom of the slurry baffle plate to one side of a slurry spraying hole to expose the slurry spraying hole, and spraying concrete slurry; when the drill bit reaches the lowest position of the design of foundation treatment, the drill bit rotates in the opposite direction, the slurry baffle and soil rotate in a friction mode to return, the slurry spraying hole is blocked, meanwhile, the introduction of concrete slurry into the drill rod is stopped, and external slurry is not prone to flowing back to the slurry spraying hole.
Compared with the prior art, the utility model has the advantages and beneficial effects as follows:
the utility model realizes that the empty pile section does not spray mortar and reaches the designed elevation of foundation treatment, and when the drill bit rotates, the slurry baffle plate rubs with soil to open the slurry spraying hole, thereby realizing the purpose of not blocking the slurry spraying, saving cement slurry, reducing construction cost and having obvious economic benefit; simultaneously, the mud liquid in the drill guniting hole is effectively prevented from flowing back after the pile driving is finished, the later guniting hole is blocked, the device improves the working efficiency of pile driving, and the device is simple in structure, low in manufacturing cost, practical and convenient.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the drill bit.
FIG. 3 is a schematic view of the deployed structure of the baffle.
Fig. 4 is a schematic structural view of embodiment 2.
Fig. 5 is a schematic structural view of embodiment 3.
Fig. 6 is a schematic structural view of a pulp deflector of embodiment 2.
The attached drawings are as follows:
1-drill rod, 2-drill bit, 3-groove, 4-baffle plate, 5-guniting hole, 6-thread and 7-scraping rod.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Example 1:
a high-pressure jet grouting pile comprises a drill rod 1 and a baffle plate 4; a guniting pipeline is arranged inside the drill rod 1; one end of the drill rod 1 is provided with a drill bit 2; grooves 3 are respectively arranged on two sides of the upper part of the drill bit 2; one side in the groove 3 is provided with a guniting hole 5, and the guniting pipelines are respectively connected with the guniting hole 5; the top end of the slurry baffle 4 is hinged with the upper end of the slurry spraying hole 5; the slurry blocking plate 4 blocks the slurry spraying hole 5 in a vertical state, and one side of the slurry blocking plate 4 is attached to one side of the groove 3.
The use method of the high-pressure jet grouting pile in the embodiment in the market comprises the following steps:
s1: before the pile driver is started, the drill bit 2 is aligned to a position needing pile driving, in an initial state, the slurry baffle plate 4 is in a vertical state due to the action of gravity, one side of the slurry baffle plate 4 is tightly attached to one side of the groove, and the slurry baffle plate blocks the slurry spraying hole 5;
s2: concrete grout is introduced into the drill rod 1, and the concrete grout gushes towards the grout spraying hole 5, and then the concrete grout is blocked by the grout blocking plate 4;
s3: the pile machine is started, the drill rod 1 rotates, concrete grout is blocked by the grout blocking plate 4 in the empty pile section, and meanwhile, the concrete grout can also abut against the grout blocking plate 4, so that the concrete grout is not easy to rotate and cannot be sprayed out;
s4: drilling a hollow pile section, inserting the drill bit 2 into soil, rubbing the slurry baffle plate 4 with the soil, sliding the bottom of the slurry baffle plate 4 to one side of the slurry spraying hole 5 to expose the slurry spraying hole 5, and spraying concrete slurry; when the position reaches the lowest position of the design of foundation treatment, the drill bit 2 rotates in the opposite direction, the slurry baffle plate 4 rotates and returns with soil in a friction mode to block the slurry spraying hole 5, meanwhile, the introduction of concrete slurry into the drill rod is stopped, and external slurry is not easy to flow back to the slurry spraying hole 5.
Example 2:
the high-pressure jet grouting pile shown in the attached figures 1-4 comprises a drill rod 1 and a baffle plate 4; a guniting pipeline is arranged inside the drill rod 1; one end of the drill rod 1 is provided with a drill bit 2; grooves 3 are respectively arranged on two sides of the upper part of the drill bit 2; one side in the groove 3 is provided with a guniting hole 5, and the guniting pipelines are respectively connected with the guniting hole 5; the top end of the slurry baffle 4 is hinged with the upper end of the slurry spraying hole 5; the slurry blocking plate 4 blocks the slurry spraying hole 5 in a vertical state, and one side of the slurry blocking plate 4 is attached to one side of the groove 3.
The surface of the pulp baffle 4 is flush with the surface of the groove 3; and a scraping rod 7 is arranged at the bottom of the pulp baffle 4.
The bottom of the drill bit 2 is provided with a thread 6.
And two sides of the groove 3 are respectively rounded.
The edge of the baffle plate 4 adopts circular arc transition.
The method of use of this example is the same as that of example 1.
Example 3:
the high-pressure jet grouting pile shown in the attached figure 5 comprises a drill rod 1 and a baffle plate 4; a guniting pipeline is arranged inside the drill rod 1; one end of the drill rod 1 is provided with a drill bit 2; grooves 3 are respectively arranged on two sides of the upper part of the drill bit 2; one side in the groove 3 is provided with a guniting hole 5, and the guniting pipelines are respectively connected with the guniting hole 5; the top end of the slurry baffle 4 is hinged with the upper end of the slurry spraying hole 5; the slurry blocking plate 4 blocks the slurry spraying hole 5 in a vertical state, and one side of the slurry blocking plate 4 is attached to one side of the groove 3.
The surface of the baffle plate 4 is higher than the surface of the groove 3.
The bottom of the drill bit 2 is provided with a thread 6.
And two sides of the groove 3 are respectively rounded.
The edge of the baffle plate 4 adopts circular arc transition.
The method of use of this example is the same as that of example 1.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.
Claims (6)
1. A high pressure jet grouting pile is characterized in that: comprises a drill rod (1) and a baffle plate (4); a guniting pipeline is arranged inside the drill rod (1); one end of the drill rod (1) is provided with a drill bit (2); grooves (3) are respectively arranged on two sides of the upper part of the drill bit (2); one side in the groove (3) is provided with a guniting hole (5), and the guniting pipelines are respectively connected with the guniting hole (5); the top end of the pulp baffle (4) is hinged with the upper end of the pulp spraying hole (5); the slurry blocking plate (4) is in a vertical state and shields the slurry spraying hole (5), and one side of the slurry blocking plate (4) is attached to one side of the groove (3).
2. The high-pressure jet grouting pile according to claim 1, characterized in that: the surface of the pulp baffle (4) is flush with the surface of the groove (3); and a scraping rod (7) is arranged at the bottom of the pulp baffle (4).
3. The high-pressure jet grouting pile according to claim 1, characterized in that: the surface of the pulp baffle (4) is higher than the surface of the groove (3).
4. The high-pressure jet grouting pile according to claim 1, characterized in that: the bottom of the drill bit (2) is provided with a thread (6).
5. A high pressure jet grouting pile according to any one of claims 2 or 3, characterized in that: and two sides of the groove (3) are respectively rounded.
6. The high-pressure jet grouting pile according to claim 1, characterized in that: the edge of the pulp baffle (4) adopts circular arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122096057.4U CN216075083U (en) | 2021-09-01 | 2021-09-01 | High-pressure jet grouting pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122096057.4U CN216075083U (en) | 2021-09-01 | 2021-09-01 | High-pressure jet grouting pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216075083U true CN216075083U (en) | 2022-03-18 |
Family
ID=80673785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122096057.4U Active CN216075083U (en) | 2021-09-01 | 2021-09-01 | High-pressure jet grouting pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216075083U (en) |
-
2021
- 2021-09-01 CN CN202122096057.4U patent/CN216075083U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High pressure rotary jet grouting pile Granted publication date: 20220318 Pledgee: Bank of China Limited by Share Ltd. Guilin branch Pledgor: Guangxi Dahan Geotechnical Engineering Co.,Ltd. Registration number: Y2024450000023 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |