CN114411727B - Built-in post grouting device for realizing multi-depth grouting of tubular piles - Google Patents
Built-in post grouting device for realizing multi-depth grouting of tubular piles Download PDFInfo
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- CN114411727B CN114411727B CN202210174301.0A CN202210174301A CN114411727B CN 114411727 B CN114411727 B CN 114411727B CN 202210174301 A CN202210174301 A CN 202210174301A CN 114411727 B CN114411727 B CN 114411727B
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- grouting
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- steel pipe
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 238000007569 slipcasting Methods 0.000 claims abstract 12
- 239000002002 slurry Substances 0.000 claims description 13
- 239000011440 grout Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- 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
-
- 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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
-
- 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
- E02D5/72—Pile shoes
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The utility model provides a realize built-in back slip casting device of many degree of depth slip casting of tubular pile, includes a plurality of vertical tubular pile festival that sets up in the stake position, be equipped with the slip casting pipe system in the tubular pile festival, just the outer wall of tubular pile festival all is equipped with the play thick liquid mouth with the slip casting pipe system intercommunication, slip casting pipe system and mud jacking device intercommunication can realize many degree of depth slip casting, and the device is through setting up the diverter valve that is connected with slip casting steel pipe, slip casting hose in the tubular pile to the transport of thick liquid in each short slip casting steel pipe is realized carrying out the mesh of slip casting operation at different degree of depth.
Description
Technical Field
The invention relates to the technical field of pipe pile grouting, in particular to a built-in post grouting device for realizing multi-depth grouting of a pipe pile.
Background
The prestressed pipe pile has the characteristics of high pile body strength, high construction efficiency, reliable quality and the like, but weak soil layers are often arranged around the pile body in actual engineering, such as pile side soft soil with low side friction resistance and pile end poor bearing layers with low pile end resistance. Under the engineering geological conditions, the strength of the tubular pile is hard to exert, the bearing capacity of the pile foundation is influenced by weak soil, and better engineering economy cannot be achieved. In the engineering, the pile foundation bearing problem is generally treated secondarily by adopting a post grouting mode, and post grouting is carried out on the pile side and the pile bottom through the pile side so as to improve the pile side friction resistance and the pile end resistance. The prior art is mainly aimed at the bored pile, and is used for solving a series of problems caused by the construction of the bored pile, and the post grouting engineering application of the tubular pile is still relatively deficient. Most of the tubular piles are formed by centrifugation, and the tubular piles are required to be driven and connected in sections in construction, so that the tubular piles are very different from grouting processes of the cast-in-place piles, and the tubular piles are difficult to directly reference. In addition, the pipeline with a single grouting outlet is arranged in the pipe, so that the construction is complex, the efficiency is low, the grouting pipeline in the pipe pile is complex, meanwhile, the uniform distribution of grouting at the side of the pile along the length of the pile cannot be ensured, and the grouting operation quality and efficiency are affected.
Therefore, there is a need for a post-pile grouting device which can realize multi-depth grouting, is simple and convenient in grouting pipe arrangement, is convenient for grouting construction, and has uniform grouting effect, and improves construction quality and efficiency.
Disclosure of Invention
(one) solving the technical problems
The invention provides a built-in post grouting device for realizing multi-depth grouting of a tubular pile, which aims to solve the actual problems in the background technology.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the built-in post grouting device for realizing multi-depth grouting of the pipe piles comprises a plurality of pipe pile joints vertically arranged in pile positions, a slurry conveying pipe system is arranged in each pipe pile joint, slurry outlets communicated with the slurry conveying pipe system are formed in the outer walls of the pipe pile joints, and the slurry conveying pipe system is communicated with a grouting device.
Preferably, the number of the tubular pile joints is three, and the tubular pile joints are a pile bottom tubular pile joint, a first tubular pile joint and a second tubular pile joint from bottom to top.
Preferably, a pile shoe is arranged at the bottom of the pile bottom tubular pile joint.
Preferably, the grouting pipe system comprises an upper grouting hose with one end connected with the grouting device, the other end of the upper grouting hose is connected with one end of an upper long grouting steel pipe vertically arranged in the second section pipe pile section, the bottom end of the upper long grouting steel pipe is connected with a direction-changing valve at the upper part, one outlet of the direction-changing valve is communicated with the grouting outlet on the second section pipe pile section, the other outlet of the direction-changing valve is connected with one end of a middle grouting hose, the other end of the middle grouting hose is connected with the middle long grouting steel pipe vertically arranged in the first section pipe pile section, the other end of the middle long grouting steel pipe is connected with the direction-changing valve at the middle part, one outlet of the direction-changing valve is communicated with the grouting outlet on the first section pipe pile section, and the other outlet of the direction-changing valve is communicated with the grouting outlet of the pile bottom pipe pile section through the bottom grouting hose.
Preferably, the upper grouting hose, the upper long grouting steel pipe, the middle grouting hose, the middle long grouting steel pipe and the bottom grouting hose are all connected through right-angle pipe joints.
Preferably, the grout outlet is provided with a nested horn pipe with a piston, a pipeline for placing the nested horn pipe is arranged in the pipe pile joint, the nested horn pipe is connected with one end of a short grouting steel pipe, and the short grouting steel pipe is connected with a short joint steel pipe through a nested pipe joint.
Preferably, a piston is arranged in the front end of the nested horn tube, rivets are arranged on the inner side end of the piston and the inner wall of the nested horn tube, springs are arranged between the rivets on the inner side end of the piston and the rivets on the inner wall, a convex bar is arranged at the front end of the nested horn tube, and a chute which can slide in a limiting manner with the convex bar is arranged on the piston
Preferably, the direction-changing valve is electrically connected with an external control power supply through an electric wire.
(III) has the following advantages compared with the prior art
1. Multiple depth grouting can be realized. The device is characterized in that a reversing valve connected with grouting steel pipes and grouting hoses is arranged in the pipe pile so as to control the conveying of slurry in each short grouting steel pipe, thereby realizing the purpose of grouting operation at different depths.
2. The nested horn pipe with the piston can protect the grouting head and can improve the grouting effect. The piston in the pulling tube before grouting is blocked in the horn tube through the positioning cross bar and the spring, so that the grouting head is prevented from being damaged in the piling process; when grouting, the piston is propped open, and the grouting liquid is obliquely sprayed and injected, so that the grouting area is enlarged, and the grouting is uniform.
3. The grouting steel pipe in the pipe pile wall is connected through the transition pipe joint and the grouting hose, so that the problem of transition connection of the grouting pipeline in the pipe wall during the segmental driving of the pipe pile is solved, the grouting effect is not influenced, and the operation efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1: the grouting device is schematically arranged;
fig. 2: the second section of the pipe pile section of the invention
Fig. 3: an enlarged view of the invention at a in fig. 1;
fig. 4: an enlarged view of the invention at b in fig. 1;
fig. 5: the pile bottom grouting schematic diagram of the invention;
fig. 6: the pipe pile grouting completion schematic diagram of the invention;
fig. 7: an enlarged view of the invention at c in fig. 5;
fig. 8: a front view of the piston of the present invention;
fig. 9: a side view of the piston of the present invention;
fig. 10: the invention relates to a side view of a nested horn pipe with a piston;
fig. 11: the invention relates to a front view of a nested horn tube with a piston.
In the drawings, the list of components represented by the various numbers is as follows:
the upper grouting hose 1-1, the middle grouting hose 1-2, the bottom grouting hose 1-3, the upper long grouting steel pipe 2-1, the middle long grouting steel pipe 2-2, the short grouting steel pipe 3, the nested horn pipe 4, the convex bar 4-1, the piston 4-2, the chute 4-3, the rivet 4-4, the spring 4-5, the right angle steel pipe 5, the right angle pipe joint 6-1, the nested pipe joint 6-2 and the second pipe pile section 7; a first tubular pile section 8; pile bottom pipe pile joint 9; a short section steel pipe 10; a direction-changing valve 11; an electric wire 11-1; a pile hole wall 12; grouting liquid 13; shoe 14.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-11, one embodiment is provided as the present invention: the built-in post grouting device for realizing multi-depth grouting of the pipe piles comprises a plurality of pipe pile joints vertically arranged in pile positions, a grouting pipe system is arranged in each pipe pile joint, the outer walls of the pipe pile joints are all provided with grouting outlets communicated with the grouting pipe system, and the grouting pipe system is communicated with a grouting device. The number of the tubular pile joints is three, and the tubular pile joints 9 at the bottom of the pile, the tubular pile joints 8 at the first joint and the tubular pile joints 7 at the second joint are respectively arranged from bottom to top. The bottom of the pile bottom tubular pile joint 9 is provided with a pile shoe 14.
The grouting pipe system comprises an upper grouting hose 1-1, one end of which is connected with a grouting device, the other end of the upper grouting hose 1-1 is connected with one end of an upper long grouting steel pipe 2-1 vertically arranged in a second pipe pile section 7, the bottom end of the upper long grouting steel pipe 2-1 is connected with an upper reversing valve 11, one outlet of the reversing valve 11 is communicated with a grouting outlet on the second pipe pile section 7, the other outlet is connected with one end of a middle grouting hose 1-2, the other end of the middle grouting hose 1-2 is connected with a middle long grouting steel pipe 2-2 vertically arranged in a first pipe pile section 8, the other end of the middle long grouting steel pipe 2-2 is connected with a reversing valve 11 in the middle, one outlet of the reversing valve 11 is communicated with a grouting outlet on the first pipe pile section 8, and the other outlet is communicated with a grouting outlet of a pile bottom pipe pile section 9 through a bottom grouting hose 1-3.
The upper grouting hose 1-1, the upper long grouting steel pipe 2-1, the middle grouting hose 1-2, the middle long grouting steel pipe 2-2 and the bottom grouting steel pipe 1-3 are connected through a right-angle pipe joint 6-1.
The grouting pipe pile comprises a pipe pile joint, a short grouting steel pipe 3, a short grouting steel pipe 10, a nested horn pipe 4 with a piston, and a pipeline for placing the nested horn pipe 4, wherein the nested horn pipe 4 is arranged in the pipe pile joint, the short grouting steel pipe 3 is connected with the short grouting steel pipe 10 through a nested pipe joint 6-2, and a connecting member of the grouting steel pipe and the grouting hose comprises a right-angle steel pipe 5, the short grouting steel pipe 10, a right-angle pipe joint 6-1 and the nested pipe joint 6-2. The right-angle pipe joint 6-1 serves to connect the long grouting steel pipe in the pipe wall and the right-angle steel pipe 5 in the pipe pile. The nested pipe joint 6-2 plays a role in connecting the short grouting steel pipe in the pipe wall and the short joint steel pipe in the pipe pile. Wherein, the ports of the nested pipe joint 6-2 and the right-angle pipe joint 6-1 are flush with the inner wall of the pipe pile so as to prevent concrete from blocking the grouting pipe in the process of prefabricating the pipe pile.
The front end of the nested horn tube 4 is internally provided with a piston 4-2, the inner side end of the piston 4-2 and the inner wall of the nested horn tube 4 are both provided with rivets 4-4, a spring 4-5 is arranged between the rivets 4-4 on the inner side end of the piston 4-2 and the rivets 4-4 on the inner wall, the front end of the nested horn tube 4 is provided with a convex bar 4-1, the piston 4-2 is provided with a sliding chute 4-3 which is in limited sliding with the convex bar 4-1, the nested horn tube 4 with the piston is internally provided with a horn tube inner protrusion 4-1 which is vertically symmetrical, and the spring 4-5 has the function of preventing the piston 4-2 from being separated by a top when being vibrated and grouting in the piling process. Before grouting, the piston 4-1 is plugged into the nested horn pipe 4 with the piston to protect a slurry outlet, and can be propped up during grouting, but the piston can not be completely propped up due to the action of the spring 4-5, so that slurry is obliquely sprayed and injected through a reserved inclined channel.
The direction-changing valve 11 is electrically connected with an external control power supply through a wire 11-1, and the direction-changing valve 11 can control the grouting liquid to flow to a short grouting steel pipe or a grouting hose or can be directly closed. The direction-changing valve is controlled by electric control.
The specific working flow of the invention is as follows:
1. setting out the pile position, and hoisting and feeding the pile after the pile machine is in place;
2. the bottom grouting hose 1-3 is sleeved by the short joint steel pipe 10 on the short grouting steel pipe 3, and the bottom grouting hose 1-3 is fixed along the inner wall of the pipe pile by using glue, so that the pipe pile is convenient to connect with the next pipe pile;
3. driving a pile bottom pipe pile joint 9;
4. connecting the bottom grouting hose 1-3 with a reversing valve 11 of the first tubular pile section 8;
5. driving a first tubular pile section 8;
6. the middle grouting hose 1-2 is sleeved with a right-angle pipe joint 6-1 of the first pipe pile joint 8 and is connected with a reversing valve 11 of the second pipe pile joint 7;
7. driving a second tubular pile joint 7;
8. sleeving the upper grouting hose 1-1 with a right-angle pipe joint 6-1 of the second pipe pile joint 7, and connecting the upper grouting hose with a grouting device;
9. the direction-changing valve 11 of the second tubular pile section 7 is controlled electrically to block the short grouting steel pipe 3, and the upper long grouting steel pipe 2-1 is connected with the middle grouting hose 1-2;
10. the direction-changing valve 11 of the first tubular pile section 8 is electrically controlled to plug the short grouting steel pipe 3, and the middle long grouting steel pipe 2-2 is communicated with the bottom grouting hose 1-3;
11. opening a grouting device, and grouting the pile bottom pipe pile joint 9 through the short grouting steel pipe 3;
12. the direction-changing valve 11 of the first pipe pile section 8 is electrically controlled, the bottom grouting hose 1-3 is plugged, slurry flows from the long grouting steel pipe 2-2 in the middle to the short grouting steel pipe 3, and the first pipe pile section is grouted;
13. after grouting is completed, turning off a reversing valve 11 of the first tubular pile section 8, and electrically controlling the reversing valve 11 of the second tubular pile section 7 to enable slurry to flow from the upper long grouting steel pipe 2-1 to the short grouting steel pipe 3, so as to grouting the second tubular pile section 7;
14. and after grouting is completed, closing the reversing valve 11 of the second tubular pile section 8, and closing the grouting device to complete grouting of the pipeline in one direction. The grouting operation of the pipelines in other directions is the same;
15. and (5) grouting is completed.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. Realize built-in back slip casting device of many degree of depth slip casting of tubular pile, its characterized in that: the grouting pile comprises a plurality of pipe pile joints vertically arranged in pile positions, wherein a slurry conveying pipe system is arranged in each pipe pile joint, slurry outlets communicated with the slurry conveying pipe system are formed in the outer walls of the pipe pile joints, and the slurry conveying pipe system is communicated with a grouting device;
the number of the tubular pile joints is three, and the tubular pile joints are a pile bottom tubular pile joint (9), a first tubular pile joint (8) and a second tubular pile joint (7) from bottom to top respectively;
the grouting pipe system comprises an upper grouting hose (1-1) with one end connected with the grouting device, the other end of the upper grouting hose (1-1) is connected with one end of an upper long grouting steel pipe (2-1) vertically arranged in a second pipe pile section (7), the bottom end of the upper long grouting steel pipe (2-1) is connected with a direction-changing valve (11) at the upper part, one outlet of the direction-changing valve (11) is communicated with the grouting outlet on the second pipe pile section (7), the other outlet is connected with one end of a middle grouting hose (1-2), the other end of the middle grouting hose (1-2) is vertically arranged in the middle long grouting steel pipe (2-2) in the first pipe pile section (8), the other end of the middle long grouting steel pipe (2-2) is connected with the direction-changing valve (11) at the middle part, one outlet of the direction-changing valve (11) is communicated with the grouting outlet on the first pipe pile section (8) through the other outlet on the first pipe pile section (8), and the other outlet of the middle grouting hose (1-2) is communicated with the bottom of the pipe pile section (9).
2. The built-in post grouting device for realizing multi-depth grouting of tubular piles according to claim 1, wherein the built-in post grouting device is characterized in that: the bottom of the pile bottom tubular pile joint (9) is provided with a pile shoe (14).
3. The built-in post grouting device for realizing multi-depth grouting of tubular piles according to claim 1, wherein the built-in post grouting device is characterized in that: the upper grouting hose (1-1) is connected with the upper long grouting steel pipe (2-1), the upper long grouting steel pipe (2-1) is connected with the middle grouting hose (1-2), the middle grouting hose (1-2) is connected with the middle long grouting steel pipe (2-2), and the middle long grouting steel pipe (2-2) is connected with the bottom grouting hose (1-3) through a right-angle pipe joint (6-1).
4. The built-in post grouting device for realizing multi-depth grouting of tubular piles according to claim 1, wherein the built-in post grouting device is characterized in that: the grouting pipe pile is characterized in that a nested horn pipe (4) with a piston is arranged at the grout outlet, a pipeline for placing the nested horn pipe (4) is arranged in the pipe pile joint, the nested horn pipe (4) is connected with one end of a short grouting steel pipe (3), and the short grouting steel pipe (3) is connected with a short joint steel pipe (10) through a nested pipe joint (6-2).
5. The built-in post-grouting device for realizing multi-depth grouting of tubular piles according to claim 4, wherein the built-in post-grouting device is characterized in that: the novel embedded horn tube is characterized in that a piston (4-2) is arranged in the front end of the embedded horn tube (4), rivets (4-4) are arranged at the inner side end of the piston (4-2) and on the inner wall of the embedded horn tube (4), springs (4-5) are arranged between the rivets (4-4) at the inner side end of the piston (4-2) and the rivets (4-4) on the inner wall, a convex bar (4-1) is arranged at the front end of the embedded horn tube (4), and a sliding groove (4-3) which is used for limiting and sliding with the convex bar (4-1) is arranged on the piston (4-2).
6. The built-in post grouting device for realizing multi-depth grouting of tubular piles according to claim 1, wherein the built-in post grouting device is characterized in that: the direction-changing valve (11) is electrically connected with an external control power supply through an electric wire (11-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210174301.0A CN114411727B (en) | 2022-02-25 | 2022-02-25 | Built-in post grouting device for realizing multi-depth grouting of tubular piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210174301.0A CN114411727B (en) | 2022-02-25 | 2022-02-25 | Built-in post grouting device for realizing multi-depth grouting of tubular piles |
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| Publication Number | Publication Date |
|---|---|
| CN114411727A CN114411727A (en) | 2022-04-29 |
| CN114411727B true CN114411727B (en) | 2024-02-20 |
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| CN202210174301.0A Active CN114411727B (en) | 2022-02-25 | 2022-02-25 | Built-in post grouting device for realizing multi-depth grouting of tubular piles |
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| CN108265710A (en) * | 2018-03-07 | 2018-07-10 | 刘寅平 | A kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework and construction method |
| CN209854705U (en) * | 2019-04-26 | 2019-12-27 | 福建省龙湟市政工程有限公司 | Cement soil inserted PHC tubular pile bag grouting expanding pile |
| CN111622217A (en) * | 2020-05-08 | 2020-09-04 | 浙江大学 | Grouting precast tubular pile after rotary spraying construction and construction process thereof |
| CN112267459A (en) * | 2020-09-26 | 2021-01-26 | 中积兴业建设集团有限公司 | PHC (prestressed high-strength concrete) pipe pile for post grouting |
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