CN219690522U - High-pump pressure hole sealing grouting structure - Google Patents
High-pump pressure hole sealing grouting structure Download PDFInfo
- Publication number
- CN219690522U CN219690522U CN202320803620.3U CN202320803620U CN219690522U CN 219690522 U CN219690522 U CN 219690522U CN 202320803620 U CN202320803620 U CN 202320803620U CN 219690522 U CN219690522 U CN 219690522U
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- grouting
- hole
- pipe
- core
- sealing
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- 238000007789 sealing Methods 0.000 title claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 9
- 238000005086 pumping Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 5
- 239000013049 sediment Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 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
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to the technical field of building construction tools, and discloses a high-pump pressure hole sealing grouting structure, which comprises a grouting pipe for inserting into a core-pulling hole, wherein the grouting pipe is provided with a hole packer for expanding hole sealing, the grouting pipe is drilled to bedrock, the core is pulled out, a core-pulling hole is formed in the grouting pile, and the hole packer is positioned in the core-pulling hole; the grouting pipe is provided with an output port and an input port, and the input port is connected with a grouting pump; the output port is communicated with the core pulling hole; the grouting pipe expands and plugs the core-pulling hole through the hole packer, so that grouting body overflow of the grouting pipe during grouting is avoided; when the grouting pump injects the grouting body into the core-pulling hole through the grouting pipe, the grouting body bears a high pumping pressure in the closed space, and the grouting body is pressed into the pile body and the pile bottom fine cracks under the action of the high pumping pressure until the pile body and the pile bottom fine cracks are thoroughly filled, so that the problem of poor plugging and repairing efficiency of the core-pulling hole is solved.
Description
Technical Field
The utility model relates to the technical field of building construction tools, in particular to a high-pump pressure hole sealing grouting structure.
Background
Cast-in-place piles are piles made by casting concrete or reinforced concrete into holes in place.
At present, when the quality detection is carried out on a cast-in-place pile, the fact that the pile bottom sediment thickness exceeds standard is one of common quality defects, and how to effectively treat the pile bottom sediment so that the pile bottom sediment can meet the design requirements after repair is a great problem facing the prior art.
In the prior art, the detection method for the integrity of the cast-in-place pile is mature, such as a high-low strain detection method, a core pulling detection method and the like, wherein the core pulling holes are required to be plugged after the pile foundation is detected by adopting the core pulling detection method, but gaps exist under some pile bottoms and cannot be permeated into for restoration, so that the plugging efficiency of the core pulling holes is low, and the use is limited.
Disclosure of Invention
The utility model aims to provide a high-pumping-pressure hole sealing grouting structure, and aims to solve the problem that in the prior art, plugging and repairing efficiency of a core-pulling hole is poor.
The high-pump pressure hole sealing grouting structure is realized by drilling holes on a cast-in-place pile to bedrock, taking out core rods by core pulling, forming core pulling holes on the cast-in-place pile, and forming a grouting pipe for being inserted into the core pulling holes, wherein hole sealing devices for expanding hole sealing are arranged on the grouting pipe and are positioned in the core pulling holes; the grouting pipe is provided with an output port and an input port, and the input port is connected with a grouting pump; the output port is communicated with the core pulling hole.
Further, the hole packer comprises a sealing pipe plugged in the core-pulling hole and a conveying pipe communicated with the sealing pipe, and a hydraulic pump is connected to the conveying pipe; the sealing tube is circumferentially arranged along the periphery of the grouting tube, and the inner side wall of the sealing tube is abutted against the periphery of the grouting tube.
Further, the sealing tube is provided with an outer end face exposed out of the core pulling hole, and the outer end face is provided with a connector connected with the conveying tube.
Further, a one-way valve is arranged on the conveying pipe, a drain pipe is arranged between the one-way valve and the sealing pipe, and the drain pipe is communicated with the conveying pipe.
Further, a water pressure valve is arranged on the drain pipe.
Further, an expansion bag is arranged on the sealing tube, exposed out of the grouting tube and positioned in the core-pulling hole;
when the hydraulic pump is used for injecting water into the sealing pipe through the conveying pipe for pressurization, the expansion bag is expanded, and the periphery of the expansion bag is abutted to the inner side wall of the core pulling hole.
Further, a slurry stop valve is arranged on the grouting pipe and exposed out of the core-pulling hole.
Further, the outer side wall of the grouting pipe and the inner side wall of the loose core hole are arranged at intervals.
Further, the input port is exposed out of the core pulling hole, and the output port is positioned below the sealing tube.
Further, the grouting pump is connected with a slurry barrel through a conduit.
Compared with the prior art, the high-pump pressure hole sealing grouting structure provided by the utility model has the advantages that the core-pulling holes are inflated and plugged by the grouting pipe through the hole packer, so that the grouting body is prevented from overflowing during grouting of the grouting pipe; when the grouting pump injects the grouting body into the core-pulling hole through the grouting pipe, the grouting body bears a high pumping pressure in the closed space, and the grouting body is pressed into the pile body and the pile bottom fine cracks under the action of the high pumping pressure until the pile body and the pile bottom fine cracks are thoroughly filled, so that the problem of poor plugging and repairing efficiency of the core-pulling hole is solved.
Drawings
Fig. 1 is a schematic structural arrangement diagram of a high-pump pressure hole sealing grouting structure provided by the utility model;
fig. 2 is a schematic structural arrangement diagram of a loose core hole and a hole packer provided by the utility model.
In the figure: core pulling hole 100, grouting pipe 200, hole packer 300, grouting pump 400, slurry barrel 500, output port 201, input port 202, slurry stop valve 203, sealing pipe 301, conveying pipe 302, hydraulic pump 303, joint 304, one-way valve 305, drain pipe 306, hydraulic valve 307, and expansion bag 308.
Description of the embodiments
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.
The implementation of the present utility model will be described in detail below with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limiting the present utility model, and specific meanings of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.
Referring to fig. 1-2, a preferred embodiment of the present utility model is provided.
Drilling holes on a cast-in-place pile to bedrock, extracting core rods from the core, forming a core-pulling hole 100 on the cast-in-place pile, and forming a grouting pipe 200 for being inserted into the core-pulling hole 100, wherein the grouting pipe 200 is provided with a hole packer 300 for expanding the hole, and the hole packer 300 is positioned in the core-pulling hole 100; the grouting pipe 200 is provided with an output port 201 and an input port 202, and the input port 202 is connected with the grouting pump 400; the output port 201 communicates with the core back bore 100.
In the high-pump-pressure hole sealing grouting structure, the grouting pipe 200 is used for expanding and plugging the core-pulling hole 100 through the hole packer 300, so that grouting body overflow of the grouting pipe 200 during grouting is avoided; when the grouting pump 400 injects the grouting body into the loose core hole 100 through the grouting pipe 200, the grouting body bears a high pumping pressure in the closed space, and the grouting body is pressed into the pile body and the pile bottom fine cracks under the action of the high pumping pressure until the pile body and the pile bottom fine cracks are thoroughly filled, so that the problem of poor plugging and repairing efficiency of the loose core hole 100 is solved.
In this embodiment, the hole packer 300 includes a sealing tube 301 plugged in the core-pulling hole 100 and a delivery tube 302 communicated with the sealing tube 301, and a hydraulic pump 303 is connected to the delivery tube 302; the sealing tube 301 is circumferentially arranged along the outer circumference of the grouting tube 200, and the inner side wall of the sealing tube 301 abuts on the outer circumference of the grouting tube 200.
The water pump 303 injects water into the sealing tube 301 through the delivery tube 302, so that the sealing tube 301 is inflated and blocked on the inner side wall of the core pulling hole 100, and the use of the grouting tube 200 is not affected in the process.
The sealing tube 301 is provided with an outer end surface exposed outside the core pulling hole 100, and the outer end surface is provided with a joint 304 connected with the conveying tube 302; the sealing tube 301 is connected to the delivery tube 302 through a joint 304, so that the delivery tube 302 can stably deliver water pressure into the sealing tube 301.
In this embodiment, a check valve 305 is disposed on the delivery pipe 302, a drain pipe 306 is disposed between the check valve 305 and the sealing pipe 301, and the drain pipe 306 is communicated with the delivery pipe 302.
The delivery pipe 302 enables water pressure to be stabilized in the sealing pipe 301 through the check valve 305, and the drain pipe 306 is used for draining water pressure in the sealing pipe 301, so that the hole packer 300 and the grouting pipe 200 can be pulled out of the core pulling hole 100.
The water pressure valve 307 is arranged on the water drain pipe 306, when the pressure in the sealing pipe 301 is increased, the water pressure valve 307 discharges water through the overflow hole, so that the pressure in the sealing pipe 301 is kept stable, the damage of the hole packer 300 is avoided, and the safety usability of the hole packer 300 is improved.
In this embodiment, the sealing tube 301 is provided with an expansion bag 308, and the expansion bag 308 is exposed out of the grouting tube 200 and is located in the core-pulling hole 100;
when the water pump 303 fills water into the sealing tube 301 through the delivery tube 302 and pressurizes, the expansion bag 308 expands, and the outer periphery of the expansion bag 308 abuts against the inner side wall of the core pulling hole 100.
The sealing tube 301 increases the effect of plugging the core-pulling hole 100 by expanding the bag 308, so that the problem that the sealing tube 301 is not expanded thoroughly enough to cause the sealing tube 301 to slide out of the core-pulling hole 100 when the grouting tube 200 is used for grouting is avoided.
The grouting pipe 200 is provided with a grouting valve 203, the grouting valve 203 is exposed out of the core-pulling hole 100, and the grouting pipe 200 can prevent grouting material injected into the core-pulling hole 100 from flowing back through the grouting valve 203.
The outer side wall of the grouting pipe 200 and the inner side wall of the loose core hole 100 are arranged at intervals, so that the sealing pipe 301 has a space for expanding and plugging the loose core hole 100.
The input port 202 is exposed outside the loose core hole 100, and the output port 201 is located below the sealing tube 301, so that the injection of the grouting body into the loose core hole 100 by the grouting tube 200 is not affected.
The grouting pump 400 is connected to a slurry tank 500 through a pipe. In this way, the grouting pump 400 can deliver the grouting body in the slurry barrel 500 into the core back hole 100 at high pressure through the guide pipe.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The high-pump pressure hole sealing grouting structure is characterized by comprising a grouting pipe for being inserted into the core-pulling hole, wherein a hole packer for expanding hole sealing is arranged on the grouting pipe, and the hole packer is positioned in the core-pulling hole; the grouting pipe is provided with an output port and an input port, and the input port is connected with a grouting pump; the output port is communicated with the core pulling hole.
2. The high-pump pressure hole sealing grouting structure according to claim 1, wherein the hole packer comprises a sealing pipe plugged in the core-pulling hole and a conveying pipe communicated with the sealing pipe, and the conveying pipe is connected with a hydraulic pump; the sealing tube is circumferentially arranged along the periphery of the grouting tube, and the inner side wall of the sealing tube is abutted against the periphery of the grouting tube.
3. The high-pump pressure hole sealing grouting structure according to claim 2, wherein the sealing tube is provided with an outer end face exposed out of the core pulling hole, and the outer end face is provided with a joint connected with the conveying tube.
4. The high-pump pressure hole sealing grouting structure according to claim 3, wherein the conveying pipe is provided with a one-way valve, a water draining pipe is arranged between the one-way valve and the sealing pipe, and the water draining pipe is communicated with the conveying pipe.
5. The high pump pressure hole sealing grouting structure according to claim 4, wherein the water pressure valve is arranged on the water drainage pipe.
6. The high-pump pressure hole sealing grouting structure according to claim 2, wherein the sealing pipe is provided with an expansion bag, and the expansion bag is exposed out of the grouting pipe and is positioned in the core pulling hole;
when the hydraulic pump is used for injecting water into the sealing pipe through the conveying pipe for pressurization, the expansion bag is expanded, and the periphery of the expansion bag is abutted to the inner side wall of the core pulling hole.
7. The high pump pressure hole sealing grouting structure according to any one of claims 1 to 6, wherein the grouting pipe is provided with a slurry stop valve, and the slurry stop valve is exposed out of the core pulling hole.
8. The high pump pressure hole sealing grouting structure according to any one of claims 1 to 6, wherein the outer side wall of the grouting pipe and the inner side wall of the loose core hole are arranged at intervals.
9. The high pump pressure hole sealing grouting structure of any one of claims 1 to 6, wherein the input port is exposed outside the loose core hole and the output port is positioned below the sealing tube.
10. The high pump pressure hole sealing grouting structure according to any one of claims 1 to 6, wherein the grouting pump is connected with a slurry barrel through a conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320803620.3U CN219690522U (en) | 2023-03-31 | 2023-03-31 | High-pump pressure hole sealing grouting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320803620.3U CN219690522U (en) | 2023-03-31 | 2023-03-31 | High-pump pressure hole sealing grouting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219690522U true CN219690522U (en) | 2023-09-15 |
Family
ID=87944874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320803620.3U Active CN219690522U (en) | 2023-03-31 | 2023-03-31 | High-pump pressure hole sealing grouting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219690522U (en) |
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2023
- 2023-03-31 CN CN202320803620.3U patent/CN219690522U/en active Active
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