CN212077908U - Improved drilling bored concrete pile end solidification supporting device - Google Patents
Improved drilling bored concrete pile end solidification supporting device Download PDFInfo
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- CN212077908U CN212077908U CN202020421290.8U CN202020421290U CN212077908U CN 212077908 U CN212077908 U CN 212077908U CN 202020421290 U CN202020421290 U CN 202020421290U CN 212077908 U CN212077908 U CN 212077908U
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Abstract
The utility model discloses a modified drilling bored concrete pile end solidification strutting arrangement, include subaerial pile hole of seting up, pour pile in the pile hole, pre-buried steel reinforcement cage in the pile and install in steel reinforcement cage one side and pre-buried slip casting pipe in the pile, the pile is downthehole, the downside that is located the pile is installed first and is accepted board and first upper surface connection steel reinforcement cage who accepts the board. When the pure water slurry is injected into the grouting pipe at high pressure, the high-pressure pure water slurry can enter the soft cylinder, and the soft cylinder cannot expand transversely due to the limit of the inner wall of the spray pipe, so that the soft cylinder expands longitudinally until the soft cylinder is punctured by the sharp part of the puncturing cylinder, the soft cylinder extends downwards along with the continuous injection of the high-pressure pure water slurry until the soft cylinder covers the inlet uniformly arranged in a ring shape on the puncturing cylinder, the high-pressure pure water slurry is discharged into the puncturing cylinder through the inlet, and finally the high-pressure pure water slurry is discharged between the first bearing plate and the second bearing plate, so that the smooth completion of grouting operation can be guaranteed.
Description
Technical Field
The utility model belongs to the technical field of the stake end solidification supports, concretely relates to modified drilling bored concrete pile stake end solidification strutting arrangement.
Background
A pile end solidification technology is applied to a cast-in-place pile, before concrete pouring, ports of a plurality of sections of grouting pipes are welded and tied on a reinforcement cage in sections by binding wires, two bearing plates are welded at the bottom of the reinforcement cage and connected through bearing columns, the grouting pipes penetrate through holes in the upper bearing plate in an interference manner, nozzles are arranged on the lower bearing plates in an annular manner, finally, the reinforcement cage is placed into a drill hole, concrete is poured into the drill hole, the concrete is solidified to form a pile, the top ends of the pile can penetrate through the ports of the grouting pipes to be inserted into a slurry spraying pipe of a high-pressure slurry pump, a slurry inlet pipe of the high-pressure slurry pump is inserted into a slurry mixing cylinder, pure water slurry is filled into the slurry mixing cylinder, is sucked into the grouting pipes through the high-pressure slurry pump, is sprayed into the space between the bearing plates through the lower ports of the grouting pipes and is sprayed to the lower side of the lower bearing plates through the nozzles uniformly arranged in an annular, the pressure slurry has the functions of permeating, filling, replacing, splitting, compacting and solidifying or combination of various forms to the soil layer at the pile end, the soil deficiency at the pile end and the soil layer around the pile end, after the pile end is grouted, the slurry pulse thickness and the diffusion width are automatically adjusted according to the condition of the soil layer at the pile bottom and the distribution of the bottom stress, the physical and chemical mechanical properties and the boundary conditions between the pile and rock and soil are changed, the hidden danger of the soil deficiency is eliminated, the strength and the stability of the foundation at the pile bottom are further improved, the bearing capacity of the pile is improved, the settlement is reduced, and the method is a scientific and advanced technical method.
Penetrate and accept and adopt temporary sealing process on the slip casting pipe between the board more to prevent that the steel reinforcement cage from putting into drilling and causing a large amount of earth that block up in the slip casting pipe because of different factors, current processing mode is the mode that adopts on-the-spot preparation, divides the multilayer to bond at the slip casting pipe lower extreme with wide sticky tape, and follow-up process high pressure grouting pump high pressure spouts the interior pure water mud of slip casting and strikes down, and wide sticky tape can break away from the slip casting pipe, exists the weak point and has: the adhesive tape wrapped at the bottom of the grouting pipe can not be ensured to fall off smoothly under the pressure of high-pressure pure water slurry, so that the grouting operation is difficult to ensure to be finished smoothly.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a modified drilling bored concrete pile end solidification strutting arrangement to slip casting operation is difficult to the problem of ensureing to accomplish smoothly among the solution prior art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a modified drilling bored concrete pile end solidification strutting arrangement, includes the stake hole of offering subaerial, pour at the downthehole pile of stake, pre-buried steel reinforcement cage in the pile and install at steel reinforcement cage one side and pre-buried slip casting pipe in the pile, the downthehole downside that lies in the pile installs the upper surface connection steel reinforcement cage of first receiving board and first receiving board, it runs through the perforation to be equipped with on the first receiving board and the slip casting pipe, the slip casting pipe is worn out one section of fenestrate and is equipped with the ejector sleeve, the ejector sleeve is built-in to be equipped with soft section of thick bamboo, the port department of soft section of thick bamboo is installed the flange and the port of flange joint ejector sleeve, the lower side that lies in soft section of thick bamboo in the ejector sleeve has installed and has been punctured a section of thick bamboo, puncture section of thick bamboo is gone up the annular equipartition and has been imported, the central point of first receiving board has installed the bearing post, and the second bearing plate is provided with nozzles in an annular shape.
Preferably, the soft cylinder is of a cylinder structure, the flange is of a circular ring structure, and the thickness of the soft cylinder is not more than 0.5 mm.
Preferably, the puncture cylinder is in a conical cylinder structure, and the inlet is in a circular hole structure.
Preferably, the bottom of the second bearing plate is provided with a reinforcing frame.
Compared with the prior art, the beneficial effects of the utility model are that:
firstly, when the pure water mud is injected into the grouting pipe at high pressure, the high-pressure pure water mud can enter the soft cylinder, and the soft cylinder cannot expand transversely due to the limitation of the inner wall of the spray pipe, so that the soft cylinder expands longitudinally until the soft cylinder is punctured by the sharp part of the punctured cylinder, the soft cylinder extends downwards along with the continuous injection of the high-pressure pure water mud until the soft cylinder covers the inlet uniformly arranged in an annular shape on the punctured cylinder, the high-pressure pure water mud is discharged into the punctured cylinder through the inlet and finally discharged between the first bearing plate and the second bearing plate, the smooth completion of grouting operation can be ensured, the arrangement of the punctured cylinder can avoid a large amount of soil blockage in the grouting pipe, and the problem that the grouting operation in the prior art is difficult to ensure the smooth completion is solved.
And secondly, after the pure water slurry discharged between the first bearing plate and the second bearing plate is solidified, an annular structure is formed and is tightly attached to the inner wall of the drilled hole, so that the supporting strength of the upper pile is enhanced.
Thirdly, after the pure water slurry below the second receiving plate is solidified, the reinforcing frame is used as a framework of the pure water slurry, so that the overall strength of the pure water slurry below the second receiving plate after solidification is enhanced.
Drawings
FIG. 1 is a partially cut-away front view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at a point of the present invention;
FIG. 3 is a schematic view of the nozzle connecting shaft of the present invention;
FIG. 4 is a schematic view of the puncture cylinder shaft of the present invention;
FIG. 5 is a schematic top view of the utility model taken along line A-A;
fig. 6 is a schematic top view of the section at the position B-B of the present invention.
In the figure: the pile comprises 1 pile hole, 2 pile columns, 3 steel reinforcement cages, 4 grouting pipes, 5 first bearing plates, 6 through holes, 7 spraying cylinders, 8 soft cylinders, 9 flanges, 10 puncturing cylinders, 11 inlets, 12 bearing columns, 13 second bearing plates, 14 nozzles and 15 reinforcing frames.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: an improved drilling cast-in-place pile end solidifying and supporting device comprises a pile hole 1 formed in the ground, a pile 2 poured in the pile hole 1, a reinforcement cage 3 pre-embedded in the pile 2 and a grouting pipe 4 arranged on one side of the reinforcement cage 3 and pre-embedded in the pile 2, wherein the pile 2 is formed by concrete solidification, the grouting pipe 4 is formed by PPR pipes with a plurality of mutually hot-connected ends, the length of each PPR pipe is 6 meters, the diameter of the inner wall is 30 millimeters, the grouting pipe 4 is bound on the right side of the reinforcement cage 3 by binding wires at intervals of 2 meters, after the concrete poured into a drilled hole is solidified to form the pile 2, the position of the grouting pipe 4 is stabilized, a first bearing plate 5 is arranged on the lower side of the pile 2 in the pile hole 1, the upper surface of the first bearing plate 5 is welded and connected with the lower side of the reinforcement cage 3, the first bearing plate 5 is of a circular plate structure, a through hole 6 is formed on the right side of the first bearing plate 5, and the grouting pipe 4 penetrates through hole 6, perforation 6 is the round hole structure, and the outer wall interference fit of slip casting pipe 4 perforates 6 inner wall, when can avoiding first 5 upside concretings of accepting the board, oozes mud in a large number from slip casting pipe 4 and perforation 6 cooperation gaps.
Referring to fig. 1, 2, 3 and 4, a section of inner wall of the grouting pipe 4 penetrating through the through hole 6 is uniformly coated with resin adhesive, and is bonded with the outer wall of the spray cylinder 7 through the resin adhesive, the spray cylinder 7 is of a cylindrical structure, a soft cylinder 8 is installed in the spray cylinder 7, the outer wall of the soft cylinder 8 is in sliding contact with the inner wall of the spray cylinder 7, a flange 9 is installed at a port of the soft cylinder 8, the lower surface of the flange 9 is uniformly coated with the resin adhesive, and is bonded with the upper port of the spray cylinder 7 through the resin adhesive, the flange 9 and the soft cylinder 8 are an injection molding integrated body, the soft cylinder 8 is of a cylindrical structure, the flange 9 is of a circular ring structure, the thickness of the soft cylinder 8 is 0.4 mm, the soft cylinder 8 and the flange 9 are made of neoprene rubber and can be stretched, a puncture cylinder 10 is installed in the spray cylinder 7 and located at the lower side of the soft cylinder 8, the lower port of the puncture cylinder 10 is, and the distance between the tip of the puncture cylinder 10 and the lower end of the soft cylinder 8 is 2 mm, the upper side of the puncture cylinder 10 is annularly and uniformly provided with four inlets 11, the number of the inlets 11 is four, the puncture cylinder 10 is in a conical cylinder structure, the inlets 11 are in a circular hole structure, when the grout injection pipe 4 injects the pure water slurry at high pressure, the high-pressure pure water slurry can enter the soft cylinder 8, the soft cylinder 8 cannot expand transversely due to the limitation of the inner wall of the spray pipe 7, so that the soft cylinder 8 expands longitudinally until the soft cylinder 8 is punctured by the tip of the puncture cylinder 10, the soft cylinder 8 extends downwards along with the continuous injection of the high-pressure pure water slurry until the soft cylinder 8 covers the inlets 11 which are annularly and uniformly arranged on the puncture cylinder 10, and the high-pressure pure water slurry is discharged into the puncture cylinder 10 through the inlets 11 and finally discharged between the first bearing plate 5 and the.
Referring to fig. 1, 5 and 6, the center of the lower surface of the first bearing plate 5 is welded to the upper end of the bearing column 12, the lower end of the bearing column 12 is welded to the center of the upper surface of the second bearing plate 13, the pure cement slurry discharged between the first bearing plate 5 and the second bearing plate 13 is solidified to form an annular structure and is tightly attached to the inner wall of the drilled hole to enhance the supporting strength for the upper pile 2, the annular upper surfaces of the first bearing plate 5 and the second bearing plate 13 are both provided with nozzles 14, the nozzles 14 are provided with circular hole structures with an inclined outward angle of 43 degrees, the number of the circular hole structures is four, the high-pressure pure cement slurry between the first bearing plate 5 and the second bearing plate 13 is sprayed to the lower side of the second bearing plate 13 through the nozzles 14 uniformly arranged in an annular shape to produce the combined effects of penetration, filling, replacement, splitting and compaction on the soil layer at the pile end, the soil layer at the pile end and the pile soil layer near the pile end, after the pure water slurry is solidified, the slurry pulse thickness and the diffusion width are automatically adjusted along with the condition of the ground layer at the bottom of the pile and the distribution of the bottom stress, the physical and chemical mechanical properties of the pure water slurry and the boundary conditions between the pile and rock and soil are changed, the hidden danger of the virtual soil is eliminated, the strength and the stability of the foundation at the bottom of the pile are further improved, the bearing capacity of the pile is improved, the sedimentation amount is reduced, a reinforcing frame 15 is arranged at the bottom of a second bearing plate 13, the reinforcing frame 15 is composed of four round rods, the lower ends of the four round rods are welded together, the upper ends of the four round rods are respectively welded on the four sides of the lower surface of the second bearing plate 13, and after the pure water slurry on the lower side of the second bearing plate 13 is solidified, the reinforcing frame 15 serves as a framework of the.
When the pure water slurry is injected into the grouting pipe 4 at high pressure, the high-pressure pure water slurry can enter the soft cylinder 8, and the inner wall of the spray pipe 7 is limited, the soft cylinder 8 cannot expand transversely, so that the soft cylinder 8 expands longitudinally until the soft cylinder 8 is punctured by the sharp part of the punctured cylinder 10, the soft cylinder 8 stretches downwards along with the continuous injection of the high-pressure pure water slurry until the soft cylinder 8 covers the inlet 11 which is uniformly arranged in the annular shape on the punctured cylinder 10, the high-pressure pure water slurry is discharged into the punctured cylinder 10 through the inlet 11 and finally discharged between the first bearing plate 5 and the second bearing plate 13, the smooth completion of grouting operation can be ensured, and the arrangement of the punctured cylinder 10 can avoid the large amount of soil blockage in the grouting pipe 4. After the pure water slurry body discharged between the first bearing plate 5 and the second bearing plate 13 is solidified, an annular structure is formed, and the annular structure is tightly attached to the inner wall of the drilled hole, so that the supporting strength of the upper pile 2 is enhanced. High-pressure pure water slurry between the first bearing plate 5 and the second bearing plate 13 is sprayed to the lower side of the second bearing plate 13 through the nozzles 14 uniformly arranged in an annular shape to perform the functions of combination of permeation, filling, replacement, splitting and compaction on a pile end soil layer, pile end soil deficiency and a pile soil layer nearby the pile end, after the pure water slurry is solidified, the slurry pulse thickness and the diffusion width are automatically adjusted along with the condition of a pile bottom stratum and the distribution of bottom stress, the physical and chemical mechanical properties and the boundary conditions between the pile and rock and soil are changed, the potential hazard of the soil deficiency is eliminated, the strength and the stability of a pile bottom foundation are further improved, the bearing capacity of the pile is improved, and the settlement amount is reduced. When the pure water slurry under the second receiving plate 13 is solidified, the reinforcing frame 15 serves as a framework thereof, thereby enhancing the overall strength of the solidified pure water slurry under the second receiving plate 13.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a modified drilling bored concrete pile end solidification strutting arrangement, includes stake hole (1) of seting up subaerial, pours stake (2) in stake hole (1), pre-buried steel reinforcement cage (3) in stake (2) and install steel reinforcement cage (3) one side and pre-buried slip casting pipe (4) in stake (2), its characterized in that: the pile comprises a pile hole (1), a lower side of a pile column (2) is provided with a first bearing plate (5) and a first upper surface connecting reinforcement cage (3) of the bearing plate (5), the first bearing plate (5) is provided with a through hole (6) and a grouting pipe (4) penetrating through the through hole (6), the grouting pipe (4) penetrates out of one section of the through hole (6) and is provided with a spray cylinder (7), the spray cylinder (7) is provided with a soft cylinder (8), a port of the soft cylinder (8) is provided with a flange (9) and a port of the flange (9) connected with the spray cylinder (7), the lower side of the soft cylinder (8) in the spray cylinder (7) is provided with a puncture cylinder (10), the puncture cylinder (11) is annularly and uniformly distributed on the puncture cylinder (10), the center of the first bearing plate (5) is provided with a bearing column (12), one end of the bearing column (12) is provided with a second bearing plate (13), and the second bearing plate (13) is provided with nozzles (14) in an annular shape.
2. The improved bored pile end solidification supporting device of claim 1, wherein: the soft cylinder (8) is of a cylinder structure, the flange (9) is of a circular ring structure, and the thickness of the soft cylinder (8) is not more than 0.5 mm.
3. The improved bored pile end solidification supporting device of claim 1, wherein: the puncture cylinder (10) is in a conical cylinder structure, and the inlet (11) is in a circular hole structure.
4. The improved bored pile end solidification supporting device of claim 1, wherein: the bottom of the second bearing plate (13) is provided with a reinforcing frame (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020421290.8U CN212077908U (en) | 2020-03-28 | 2020-03-28 | Improved drilling bored concrete pile end solidification supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020421290.8U CN212077908U (en) | 2020-03-28 | 2020-03-28 | Improved drilling bored concrete pile end solidification supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212077908U true CN212077908U (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020421290.8U Expired - Fee Related CN212077908U (en) | 2020-03-28 | 2020-03-28 | Improved drilling bored concrete pile end solidification supporting device |
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| CN (1) | CN212077908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115404861A (en) * | 2022-10-12 | 2022-11-29 | 驻马店职业技术学院 | High-pressure injection slip casting device for civil engineering |
-
2020
- 2020-03-28 CN CN202020421290.8U patent/CN212077908U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115404861A (en) * | 2022-10-12 | 2022-11-29 | 驻马店职业技术学院 | High-pressure injection slip casting device for civil engineering |
| CN115404861B (en) * | 2022-10-12 | 2023-09-22 | 驻马店职业技术学院 | High-pressure jet grouting device for civil engineering |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201204 |