CN114411727A - Built-in post-grouting device for realizing multi-depth grouting of tubular pile - Google Patents
Built-in post-grouting device for realizing multi-depth grouting of tubular pile Download PDFInfo
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- CN114411727A CN114411727A CN202210174301.0A CN202210174301A CN114411727A CN 114411727 A CN114411727 A CN 114411727A CN 202210174301 A CN202210174301 A CN 202210174301A CN 114411727 A CN114411727 A CN 114411727A
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- grouting
- pipe
- pile
- steel pipe
- tubular
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 62
- 239000010959 steel Substances 0.000 claims abstract description 62
- 238000007569 slipcasting Methods 0.000 claims abstract description 25
- 239000011440 grout Substances 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 230000008859 change Effects 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 8
- 210000002445 nipple Anatomy 0.000 claims 1
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011065 in-situ storage 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002950 deficient Effects 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
- 238000000465 moulding Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
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
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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
- E02D5/72—Pile shoes
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 knots that set up in the stake position, be equipped with defeated thick liquid pipe system in the tubular pile knot, just the outer wall of tubular pile knot all is equipped with the grout outlet with defeated thick liquid pipe system intercommunication, defeated thick liquid pipe system and mud jacking device intercommunication can realize many degree of depth slip casting, and the device is through setting up the diversion valve that is connected with slip casting steel pipe, slip casting hose in the tubular pile to the transport of the interior thick liquid of each short slip casting steel pipe of control, thereby realize carrying out the purpose of slip casting operation at the different degree of depth.
Description
Technical Field
The invention relates to the technical field of tubular pile grouting, in particular to a built-in post-grouting device for realizing tubular pile multi-depth grouting.
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 often exist around the pile body in actual engineering, such as pile side soft soil with low side friction resistance and a pile end poor bearing layer with low pile end resistance. Under the engineering geological condition, the strength of the tubular pile is difficult to exert, the bearing capacity of the pile foundation is affected by weak soil, and better engineering economy cannot be achieved. In engineering, a post-grouting mode is usually adopted to carry out secondary treatment on the bearing problem of the pile foundation, and post-grouting is carried out on the pile side and the pile bottom through the pile side so as to improve the friction force of the pile side and the resistance of the pile end. At present, the prior art is mostly directed to cast-in-situ bored piles, and solves the series of problems caused by the construction of the cast-in-situ bored piles, and the post-grouting engineering application of the tubular piles is still relatively deficient. The tubular pile is mostly centrifugal molding, needs to be squeezed into in the segmentation and connect in the construction, and this has very big difference with the slip casting technology of bored concrete pile, is difficult to directly reference. In addition, the pipeline with the single grout outlet arranged in the pipe is complex in construction and low in efficiency, and a grouting pipeline in the pipe pile is complex, so that grouting on the side of the pile cannot be uniformly distributed along the length of the pile, and grouting operation quality and efficiency are affected.
Therefore, need urgently for one kind can realize that many degree of depth slip casting and slip casting pipe arrange succinctly convenient, the slip casting construction of being convenient for, and realize slip casting effect even slip casting device behind tubular pile, improve construction quality and efficiency.
Disclosure of Invention
Technical problem to be solved
The invention provides a built-in post-grouting device for realizing multi-depth grouting of a tubular pile, which aims to solve the practical problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: 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 knots that set up in the stake position, be equipped with defeated thick liquid pipe system in the tubular pile knot, just the outer wall of tubular pile knot all is equipped with the grout outlet with defeated thick liquid pipe system intercommunication, defeated thick liquid pipe system and mud jacking device intercommunication.
Preferably, the number of the tubular pile sections is three, and the tubular pile sections are respectively a pile bottom tubular pile section, a first tubular pile section and a second tubular pile section from bottom to top.
Preferably, the bottom of the pile bottom pipe pile section is provided with a pile shoe.
Preferably, the slurry conveying 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 pipe pile section, the bottom end of the upper long grouting steel pipe is connected with a diversion valve at the upper part, one outlet of the diversion valve is communicated with the grout outlet on the second section pipe pile section, the other outlet is connected with one end of a middle grouting hose, the other end of the middle grouting hose is connected with a 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 middle turning valve, one outlet of the turning valve is communicated with the grout outlet on the first section pipe pile section, and the other outlet of the turning valve is communicated with the grout outlet of the pile bottom pipe pile section through a bottom grouting hose.
Preferably, the upper grouting hose and the upper long grouting steel pipe, the upper long grouting steel pipe and the middle grouting hose, the middle grouting hose and the middle long grouting steel pipe, and the middle long grouting steel pipe and the bottom grouting hose are connected through right-angle pipe joints.
Preferably, a nested flared tube with a piston is arranged at the grout outlet, a pipeline for placing the nested flared tube is arranged in the tubular pile section, the nested flared tube is connected with one end of the short grouting steel tube, and the short grouting steel tube is connected with the short section steel tube through a nested tube connector.
Preferably, be equipped with the piston in the nested horn pipe front end, the medial extremity of piston and all be equipped with the rivet on the inner wall of nested horn pipe, just all be equipped with the spring between rivet on the medial extremity of piston and the inner wall, the front end of nested horn pipe is equipped with protruding thick stick, just be equipped with on the piston with the spacing gliding spout of protruding thick stick
Preferably, the direction changing valve is electrically connected with an external control power supply through an electric wire.
(III) compared with the prior art, has the following beneficial effects
1. And multi-depth grouting can be realized. The device is through setting up the diversion valve that is connected with slip casting steel pipe, slip casting hose in the tubular pile to the transport of the interior thick liquid of each short slip casting steel pipe of control, thereby realize carrying out the purpose of slip casting operation at the different degree of depth.
2. The nested flared tube with the piston can protect the grouting head and improve the grouting effect. The piston in the drawing pipe before grouting is blocked and filled in the flared pipe through the positioning transverse bar and the spring, so that the grouting head is prevented from being damaged in the piling process; during grouting, the piston is pushed open, and grout is injected in an inclined spraying manner, so that the effects of enlarging grouting area and ensuring uniform grouting are achieved.
3. The grouting steel pipe in the pile wall of the pipe pile is connected in the pipe pile through the transition pipe connector and the grouting hose, the problem of transition connection of grouting pipelines in the pipe wall when the pipe pile is driven in sections 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 used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1: the grouting device is arranged schematically;
FIG. 2: second-section pipe pile section cross-sectional view
FIG. 3: the invention is enlarged at a in figure 1;
FIG. 4: the invention is enlarged at b in figure 1;
FIG. 5: the invention is a schematic diagram of pile bottom grouting;
FIG. 6: the grouting completion schematic diagram of the tubular pile is shown;
FIG. 7: the invention is enlarged at c in fig. 5;
FIG. 8: the piston of the invention is in front view;
FIG. 9: the piston of the invention is in side view;
FIG. 10: the invention has a side view of a nested flared tube with a piston;
FIG. 11: the nested flare with piston of the present invention is in elevation.
In the drawings, the components represented by the respective reference numerals are listed below:
1-1 parts of upper grouting hose, 1-2 parts of middle grouting hose, 1-3 parts of bottom grouting hose, 2-1 parts of upper long grouting steel pipe, 2-2 parts of middle long grouting steel pipe, 3 parts of short grouting steel pipe, 4 parts of nested flared tube, 4-1 parts of convex bar, 4-2 parts of piston, 4-3 parts of chute, 4-4 parts of rivet, 4-5 parts of spring, 5 parts of right angle steel pipe, 6-1 parts of right angle pipe connector, 6-2 parts of nested pipe connector and 7 parts of second section pipe pile section; a first pipe pile section 8; pile bottom pipe pile section 9; a short section steel pipe 10; a change valve 11; an electric wire 11-1; a pile bore wall 12; grouting liquid 13; a shoe 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-11, one embodiment of the present invention is provided: 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 knots that set up in the stake position, is equipped with defeated thick liquid pipe system in the tubular pile knot, and the outer wall of tubular pile knot all is equipped with the grout outlet with defeated thick liquid pipe system intercommunication, defeated thick liquid pipe system and mud jacking device intercommunication. The number of the tubular pile sections is three, and the tubular pile sections are respectively a pile bottom tubular pile section 9, a first tubular pile section 8 and a second tubular pile section 7 from bottom to top. The bottom of the pile bottom pipe pile section 9 is provided with a pile shoe 14.
The slurry conveying pipe system comprises an upper grouting hose 1-1, one end of the upper grouting hose 1-1 is connected with a slurry pressing 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 change valve 11 on the upper portion, one outlet of the change valve 11 is communicated with a slurry outlet on the second pipe pile section 7, the other outlet of the change valve 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 the change valve 11 on the middle, one outlet of the change valve 11 is communicated with a slurry outlet on the first pipe pile section 8, and the other outlet is communicated with a slurry outlet of a pile bottom pipe pile section 9 through the bottom grouting hose 1-3.
The upper grouting hose 1-1 and the upper long grouting steel pipe 2-1, the upper long grouting steel pipe 2-1 and the middle grouting hose 1-2, the middle grouting hose 1-2 and the middle long grouting steel pipe 2-2, and the middle long grouting steel pipe 2-2 and the bottom grouting hose 1-3 are connected through a right-angle pipe joint 6-1.
The grout outlet is provided with a nested flared tube 4 with a piston, a pipeline for placing the nested flared tube 4 is arranged in the tubular pile joint, the nested flared tube 4 is connected with one end of a short grouting steel tube 3, the short grouting steel tube 3 is connected with a short section steel tube 10 through a nested pipe connector 6-2, and connecting members of the grouting steel tube and the grouting hose comprise a right-angle steel tube 5, a short section steel tube 10, a right-angle pipe connector 6-1 and a nested pipe connector 6-2. The right-angle pipe joint 6-1 plays a role in connecting 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 a short grouting steel pipe in the pipe wall and a short section steel pipe in the pipe pile. The ports of the nested pipe connector 6-2 and the right-angle pipe connector 6-1 are flush with the inner wall of the pipe pile so as to prevent concrete from blocking the grouting pipe in the pipe pile prefabricating process.
A piston 4-2 is arranged in the front end of the nested flared tube 4, rivets 4-4 are arranged on the inner side end of the piston 4-2 and the inner wall of the nested flared tube 4, a spring 4-5 is arranged between the rivet 4-4 on the inner side end of the piston 4-2 and the rivet 4-4 on the inner wall, a protruding rod 4-1 is arranged at the front end of the nested flared tube 4, a sliding groove 4-3 which slides in a limiting manner with the protruding rod 4-1 is arranged on the piston 4-2, vertically symmetrical flared tube protrusions 4-1 are arranged in the nested flared tube 4 with the piston, and the spring 4-5 has the function of preventing the piston 4-2 from being shaken off in the piling process and from being pushed off in the grouting process. Before grouting, the piston 4-1 is plugged into the nested flared tube 4 with the piston to protect a grout outlet, the piston can be pushed open during grouting, but the piston cannot be completely pushed off under the action of the spring 4-5, so that grout is obliquely sprayed and injected through the reserved inclined channel.
The diversion valve 11 is electrically connected with an external control power supply through an electric wire 11-1, and the diversion valve 11 can control the flow direction of grouting liquid to a short grouting steel pipe or a grouting hose or be directly closed. The direction-changing valve is controlled by electric control.
The specific working process of the invention is as follows:
1. pile position lofting, and lifting the pile after the pile machine is in place;
2. sleeving the bottom grouting hose 1-3 through the short section steel pipe 10 on the short grouting steel pipe 3, and fixing the bottom grouting hose 1-3 along the inner wall of the tubular pile by using glue so as to be conveniently connected with the next section of tubular pile;
3. driving a pile bottom pipe pile section 9;
4. connecting the bottom grouting hose 1-3 with a change valve 11 of the first section of pipe pile section 8;
5. driving a first section of pipe pile section 8;
6. sleeving a middle grouting hose 1-2 with the right-angle pipe joint 6-1 of the first section of pipe pile section 8, and connecting with a change valve 11 of the second section of pipe pile section 7;
7. driving a second section of pipe pile section 7;
8. sleeving the upper grouting hose 1-1 with the right-angle pipe joint 6-1 of the second section pipe pile section 7, and connecting with a grouting device;
9. electrically controlling a change valve 11 of the second pipe pile section 7, plugging the short grouting steel pipe 3, and connecting the upper long grouting steel pipe 2-1 with the middle grouting hose 1-2;
10. electrically controlling a change valve 11 of the first section of tubular pile section 8, plugging the short grouting steel pipe 3, and connecting the middle long grouting steel pipe 2-2 with the bottom grouting hose 1-3;
11. opening the grouting device, and grouting the pile section 9 of the pile bottom pipe through the short grouting steel pipe 3;
12. electrically controlling a change valve 11 of the first section of tubular pile section 8, plugging a bottom grouting hose 1-3, allowing grout to flow from a middle long grouting steel pipe 2-2 to a short grouting steel pipe 3, and grouting the first section of tubular pile;
13. after grouting is finished, closing the change valve 11 of the first section of tubular pile section 8, electrically controlling the change valve 11 of the second section of tubular pile section 7, allowing grout to flow from the upper long grouting steel pipe 2-1 to the short grouting steel pipe 3, and grouting the second section of tubular pile section 7;
14. and after grouting, closing the change valve 11 of the second section of pipe pile section 8, closing the grouting device, and completing pipeline grouting in one direction. Grouting the pipelines in other directions for the same operation;
15. and finishing grouting.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. 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 to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms 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 utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a realize built-in back slip casting device of many degree of depth slip casting of tubular pile which characterized in that: including a plurality of vertical tubular pile sections that set up in the stake position, be equipped with defeated thick liquid pipe system in the tubular pile section, just the outer wall of tubular pile section all is equipped with the grout outlet with defeated thick liquid pipe system intercommunication, defeated thick liquid pipe system and mud jacking device intercommunication.
2. The built-in post-grouting device for realizing multi-depth grouting of tubular piles according to claim 1, is characterized in that: the number of the tubular pile sections is three, and the tubular pile sections are respectively a pile bottom tubular pile section (9), a first tubular pile section (8) and a second tubular pile section (7) from bottom to top.
3. The built-in post-grouting device for realizing multi-depth grouting of tubular piles according to claim 2, is characterized in that: the bottom of the pile bottom pipe pile section (9) is provided with a pile shoe (14).
4. The built-in post-grouting device for realizing multi-depth grouting of tubular piles according to claim 2, is characterized in that: the slurry conveying 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 the second pipe pile section (7), the bottom end of the upper long grouting steel pipe (2-1) is connected with a reversing valve (11) at the upper part, one outlet of the reversing valve (11) is communicated with the slurry 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 the first pipe pile section (8), and the other end of the middle long grouting steel pipe (2-2) is connected with the reversing valve (11) at the middle part, one outlet of the change valve (11) is communicated with the grout outlet on the first section pipe pile section (8), and the other outlet is communicated with the grout outlet of the pile bottom pipe pile section (9) through a bottom grouting hose (1-3).
5. The built-in post-grouting device for realizing multi-depth grouting of tubular piles according to claim 4, 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 connector (6-1).
6. The built-in post-grouting device for realizing multi-depth grouting of tubular piles according to claim 4, is characterized in that: go out thick liquid mouth department and be equipped with nested horn pipe (4) of taking the piston, just be equipped with in the tubular pile festival and place the pipeline of nested horn pipe (4), nested horn pipe (4) are connected with the one end of short slip casting steel pipe (3), short slip casting steel pipe (3) are connected with nipple joint steel pipe (10) through nested pipe connector (6-2).
7. The built-in post-grouting device for realizing multi-depth grouting of tubular piles according to claim 6, is characterized in that: the novel piston type horn tube is characterized in that a piston (4-2) is arranged in the front end of the nested horn tube (4), rivets (4-4) are arranged on the inner side end of the piston (4-2) and the inner wall of the nested horn tube (4), a spring (4-5) is arranged between the rivet (4-4) on the inner side end of the piston (4-2) and the rivet (4-4) on the inner wall, a protruding lever (4-1) is arranged at the front end of the nested horn tube (4), and a sliding groove (4-3) which slides in a limiting mode with the protruding lever (4-1) is arranged on the piston (4-2).
8. The built-in post-grouting device for realizing multi-depth grouting of tubular piles according to claim 1, is characterized in that: the direction changing valve (11) is electrically connected with an external control power supply through an electric wire (11-1).
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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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| CN114411727B CN114411727B (en) | 2024-02-20 |
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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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