CN117144896B - Prestressed concrete square pile and manufacturing method thereof - Google Patents
Prestressed concrete square pile and manufacturing method thereof Download PDFInfo
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- CN117144896B CN117144896B CN202311404003.7A CN202311404003A CN117144896B CN 117144896 B CN117144896 B CN 117144896B CN 202311404003 A CN202311404003 A CN 202311404003A CN 117144896 B CN117144896 B CN 117144896B
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- 239000011513 prestressed concrete Substances 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000006073 displacement reaction Methods 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000002775 capsule Substances 0.000 claims abstract description 9
- 230000007306 turnover Effects 0.000 claims description 23
- 239000004593 Epoxy Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 238000005536 corrosion prevention Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 abstract description 7
- 239000002002 slurry Substances 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009957 hemming Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
-
- 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
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
-
- 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
- E02D5/58—Prestressed concrete piles
-
- 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
- E02D5/64—Repairing piles
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Piles And Underground Anchors (AREA)
Abstract
When the lateral displacement between pile bodies occurs, a spring ejector rod pushes a plunger rod head at the corresponding side along with the displacement of a displacement block to transfer a transmission medium in a medium cavity into a pushing cavity through a liquid guide thin channel, meanwhile, the transmission medium flowing into the pushing cavity can generate a reset thrust towards the direction of the displacement block through a spring plunger head to a reset push rod, meanwhile, a puncture sheet punctures a reinforcing agent capsule body, the punctured reinforcing agent capsule body reinforces the joint of an upper end plate and a lower end plate, at the moment, the reset push rod generates a thrust towards the reset direction against the displacement spring sheet, finally, pouring slurry can be injected through a conduit so as to be discharged into a movable groove through an anti-blocking net cover, thereby realizing auxiliary reinforcement between the upper end plate and the lower end plate, and being capable of doubly reinforcing the joint of the loose upper end plate and the lower end plate while having a reverse force resisting the displacement when the lateral displacement force is applied between the pile bodies.
Description
Technical Field
The invention belongs to the technical field of building square piles, and particularly relates to a prestressed concrete square pile and a manufacturing method thereof.
Background
The prestressed concrete square piles are required to be connected in an extending mode through end plates according to the actual embedded depth, when the prestressed concrete solid square piles are broken or displaced at the connecting positions, certain inclination or horizontal displacement of the end faces between the connecting positions usually occurs, and the concrete situation depends on the breaking or displacement property and the pile body stress and deformation mechanism; if the joints are broken, obvious discontinuities and separation of the pile bodies between the joints may occur, which may lead to tilting or misalignment of the end faces of the joints, the breaking typically being due to structural failure of the pile bodies due to their bearing capacity being exceeded or other external factors; displacement conditions: when the connection is displaced, the pile bodies can relatively move, the displacement can be horizontal displacement, vertical displacement or inclined displacement, the specific displacement direction and degree depend on the direction and the size of an applied load, and the rigidity and the strength of the connection of the pile bodies, the inclination or horizontal displacement of the end faces of the connection can lead to the decrease of the strength and the stability of the connection of the pile bodies, the overall performance and the safety of the structure are negatively influenced, the prior art solves the problems that corresponding repair and reinforcement measures are adopted according to the condition of fracture or displacement, and the method comprises reinforcement of steel bars, reinforcement of carbon fibers, replacement or repair of a prestress pull rod and the like, and the measures aim at restoring the strength and the stability of the connection;
however, the above scheme has the following disadvantages: the repairing method is carried out after the pile body after piling is lifted out, is complex, and can further improve the connection position of the prestressed concrete square pile end plate, so that the pile body can resist offset reverse force when being subjected to lateral offset force, and can strengthen the connection position of the loose end plate in the direction which needs to be improved at present.
Disclosure of Invention
The invention aims to provide a prestressed concrete square pile and a manufacturing method thereof, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the prestressed concrete square pile comprises a pile body which is formed by mutually connecting an upper end plate and a lower end plate, wherein a conduit is penetrated and embedded in the middle of the pile body, an offset groove is formed in the bottom end surface of the upper end plate, an offset block is arranged in the center of the upper end surface of the lower end plate and is matched and inserted into the offset groove, a spring ejector rod is annularly and movably arranged on the side wall of the offset block, and a transmission assembly is annularly arranged on the inner side wall of the offset groove and is matched with the spring ejector rod;
the movable grooves are circumferentially distributed on opposite surfaces between the upper end plate and the lower end plate, anti-offset spring plate groups are arranged between the opposite movable grooves, reset push rods are penetrated through the middle parts of the side walls of the anti-offset spring plate groups in a sliding manner, and reinforcing agent capsules penetrate through the adjacent movable grooves in an annular manner and penetrate through the inner sides of the anti-offset spring plate groups;
when the corresponding pile body between the upper end plate and the lower end plate is offset in a relative dislocation manner, the spring ejector rod and the transmission assembly are matched to indirectly resist the offset elastic sheet group to generate offset-resistant thrust through the reset push rod, and meanwhile, the offset-resistant elastic sheet group can puncture the reinforcing agent bag body after being deformed by the push of the reset push rod and is used for reinforcing the space between the upper end plate and the lower end plate.
Preferably, the main contact groove has been laid to the hoop on the offset piece lateral wall, and the cooperation of main contact inslot is inserted and is equipped with the spring ejector pin, be provided with vice contact ring on the offset inslot wall, just preset the medium chamber on the offset inslot lateral wall, drive assembly is including sealed the slip plunger pole head of running through on the medium chamber lateral wall, and plunger pole head stretches out the end and is located the offset inslot and vice contact ring wire is connected, just main contact inslot contact and vice contact ring all extend to the alarm element of external controller end from the wire pipe end through the wire on, works as the offset piece takes place the skew in the offset inslot, and main contact groove passes through the contact of spring ejector pin and plunger pole head, makes main contact groove and vice contact ring indirectly form closed circuit.
Preferably, at least four removable mounting's abatvoix has been arranged to the ring direction on the offset groove lateral wall, the medium chamber is preset in the abatvoix inboard, just inside still being equipped with of abatvoix promotes the chamber, and the medium chamber with promote between the chamber through the thin way intercommunication of liquid conduction setting, the abatvoix terminal surface is equipped with the transmission groove, it has the spring plunger head to promote the sealed slip of chamber inside wall, the spring plunger head stretches out the end and extends to the transmission inslot and push up the contact with the push rod free end that resets, works as when the offset piece takes place the lateral deflection in the offset inslot, the plunger head that corresponds the side will be medium intracavity transmission medium and pass through the thin way of liquid conduction and pass through to promote the intracavity, and the transmission medium that flows into simultaneously to promote the intracavity can produce the thrust that resets towards the offset piece orientation through the spring plunger head, it has the gas exchange mouth to promote the chamber bottom surface outside.
Preferably, the movable groove is provided with a major arc groove structure on the bottom wall at the inner side of the movable groove, a turnover cylinder is movably arranged in the major arc groove, a cavity is formed in the turnover cylinder and can be plugged into the major arc groove for installation in a deformation mode, the free ends of the anti-offset elastic sheet groups are fixedly arranged on the turnover cylinder, limit stops are arranged on the turnover cylinder and positioned at the two sides of the anti-offset elastic sheet groups, the limit stops are used for limiting the offset angle of the anti-offset elastic sheet groups, and the turnover contact displacement between the limit stops and the inner wall of the movable groove is larger than the movable range of the spring ejector rod in the main contact head groove.
Preferably, the anti-offset elastic sheet group is formed by symmetrically arranging arc-shaped elastic sheets, and the arc-shaped elastic sheets generate restoring elastic force when the offset block is in an offset state so as to play an anti-offset effect, a through hole is formed in the side wall of the anti-offset elastic sheet group and is used for sliding penetration of a reset push rod, the outer end of the reset push rod is provided with an extension part which is used for pushing and pressing the outer surface of the anti-offset elastic sheet group, and the inner end of the reset push rod is provided with a folding part which is used for extending into the transmission groove and pushing and pressing the extension end of the spring plunger head.
Preferably, the opposite surface walls of the upper end plate and the lower end plate are respectively provided with a reinforcing ring groove, the reinforcing ring grooves are communicated with corresponding movable grooves in a penetrating mode, the reinforcing agent bag body is embedded in the reinforcing ring grooves in a ring mode and penetrates between the arc-shaped elastic pieces in the anti-deflection elastic piece group, the opposite surfaces of the inner sides of the arc-shaped elastic pieces are respectively provided with a puncturing piece, when the dislocation travel of the deflection block is larger than the movable travel of the spring plunger head in the main contact head groove, the puncturing pieces on the right side of the arc-shaped elastic pieces puncture the right side of the reinforcing agent bag body, the reset push rod resets and pushes the outer arc-shaped elastic pieces under the action of the transmission assembly, and then the puncturing pieces on the left arc-shaped elastic pieces puncture the left side of the reinforcing agent bag body.
Preferably, the middle part of the inner side of the reinforcing agent bag body is vertically provided with a separation membrane part, and the two sides of the inner side of the reinforcing agent bag body are respectively provided with a curing agent and resin.
Preferably, the inner side of the reinforcing agent capsule body is filled with an epoxy resin pouring material or a polymer grouting material which are mixed in advance.
The manufacturing method is used for the prestressed concrete square pile and comprises the following steps of:
a: the embedded block is preinstalled in the offset groove at the bottom of the upper end plate, so that the main contact groove and the auxiliary contact ring penetrate out of the conduit through a wire and extend to an alarm element at the end of the external controller, an alarm circuit for the alarm element is arranged through the external controller when the main contact groove and the auxiliary contact ring are connected in series, and a trigger circuit or a PLC circuit is preset at the alarm end of the alarm element to set alarm conditions;
b: firstly, keeping an installation gap between an upper end plate and a lower end plate in a hoisting mode, pre-installing an anti-offset elastic sheet group on a reset push rod in a movable groove, then connecting the joint of a reinforcing agent bag, adding an injection agent, enabling a spring plunger head to be in jacking contact with a flanging part of the reset push rod, installing the upper end plate and the lower end plate in a matched mode, enabling a turnover cylinder to be in rolling connection with a major arc groove in the movable groove in a deformation buckling mode, limiting the offset of the anti-offset elastic sheet group by a limit stop on the turnover cylinder, and ensuring that the reinforcing agent bag body is positioned between arc-shaped elastic sheets on the inner side of the anti-offset elastic sheet group, wherein a puncture sheet is not in contact with the reinforcing agent bag body;
c: the outer annular surfaces of the upper end plate and the lower end plate are coated with epoxy paint for corrosion prevention, the coated epoxy paint needs to be ensured not to be immersed into the movable groove end, and the joint outer annular edges of the upper end plate and the lower end plate are fixed in a welding or screwing mode.
Compared with the prior art, the invention has the beneficial effects that: when the side position offset between the pile bodies occurs, the spring ejector rod can push the plunger rod heads on the corresponding sides along with the offset of the offset blocks to transfer the transmission medium in the medium cavity to the pushing cavity through the liquid guide fine channel, meanwhile, the transmission medium flowing into the pushing cavity can generate reset thrust towards the direction of the offset blocks through the spring plunger head, meanwhile, the puncture piece punctures the reinforcing agent bag body, the punctured reinforcing agent bag body reinforces the joint of the upper end plate and the lower end plate, at the moment, the reset push rod resists the offset elastic sheet to generate thrust in the reset direction, finally pouring grouting can be filled through a conduit to be discharged into a movable groove through the anti-blocking net cover, auxiliary reinforcement between the upper end plate and the lower end plate is achieved, further, after an alarm element gives an alarm, the top of the pile body which is not driven into the ground is lifted upwards by an centimeter range through an external lifting machine, the anti-offset elastic sheet can be automatically aligned when the upper end plate and the lower end plate are separated, and the pile body can have reverse force resisting offset when the lateral offset force is applied, and the loose upper end plate and the joint of the lower end plate can be doubly reinforced.
Drawings
FIG. 1 is a schematic view of a pile splicing area in partial cross section according to the present invention;
FIG. 2 is a schematic view of the connection area between the upper and lower end plates of FIG. 1;
FIG. 3 is a schematic diagram illustrating lateral offset between the upper and lower end plates of FIG. 2;
FIG. 4 is a schematic diagram showing a reverse force state generated by the reset push rod against the offset spring under the action of the transmission assembly;
FIG. 5 is a schematic view of a portion of the reinforcing agent bladder of FIG. 2 with an isolation membrane disposed therein;
FIG. 6 is a schematic partial cross-sectional view of the active slot area in the upper end plate of the present invention;
FIG. 7 is a schematic illustration of the fit of the slug, drive assembly, anti-migration tab, flipping cylinder, migration slug and spring carrier in a semi-sectioned state of the present invention;
FIG. 8 is a schematic view of the reinforcing agent bladder of FIG. 7 with a barrier membrane portion;
FIG. 9 is a schematic view showing the fit of the connecting tube region on the reinforcing agent capsule of the present invention.
In the figure: 1. a pile body; 2. a conduit; 3. an offset slot; 4. an offset block; 5. a spring ejector rod; 6. a movable groove; 7. an anti-offset spring plate group; 8. resetting the push rod; 9. a reinforcing agent capsule; 10. a main contact groove; 11. a secondary contact ring; 12. a medium chamber; 13. a plunger rod head; 14. an insert; 15. a pushing cavity; 16. a liquid guiding fine channel; 17. a transmission groove; 18. a spring plunger head; 19. overturning the cylinder; 20. a limit stop; 21. perforating; 22. reinforcing the ring groove; 23. puncturing the sheet; 24. a separation film portion; 101. an upper end plate; 102. a lower end plate; 201. an external controller; 301. an extension part is externally extended; 302. a hemming section; 401. a gas exchange port; 501. an epoxy coating; 601. anti-blocking mesh enclosure; 901. and (5) connecting pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-9, the present invention provides a technical solution:
example 1
The utility model provides a prestressed concrete square pile, including by the pile body 1 that upper end plate 101 carries out interconnect with lower end plate 102, pile body 1 middle part runs through pre-buried conduit 2, upper end plate 101 bottom face is equipped with offset groove 3, lower end plate 102 up end center is provided with offset piece 4 and cooperation is inserted to offset inslot 3, the annular anti-blocking screen panel 601 has at offset piece 4 top, adopt the rubber material, anti-blocking screen panel 601's setting has avoided large granule foreign matter to cause the jam to movable groove 6, simultaneously anti-blocking screen panel 601 allows the passage of pouring concrete, when the side position skew between the emergence pile body 1, can add pouring slurry in order to arrange into movable groove 6 through anti-blocking screen panel 601 through conduit 2, realize the supplementary reinforcement between upper end plate 101 and lower end plate 102, the annular movable arrangement has spring ejector pin 5 on the offset piece 4 lateral wall, and the transmission subassembly has been laid to the annular on the offset inslot 3 lateral wall and cooperatees with spring ejector pin 5;
the opposite surfaces between the upper end plate 101 and the lower end plate 102 are respectively provided with a movable groove 6 in a circumferential direction, an anti-offset spring plate group 7 is arranged between the opposite movable grooves 6, a reset push rod 8 is penetrated through the middle part of the side wall of the anti-offset spring plate group 7 in a sliding way, and a reinforcing agent bag body 9 is penetrated between the adjacent movable grooves 6 in a circumferential direction and penetrates through the inner side of the anti-offset spring plate group 7;
when the corresponding pile body 1 between the upper end plate 101 and the lower end plate 102 is offset relatively, the spring ejector rod 5 and the transmission assembly are matched to indirectly generate anti-offset thrust to the offset elastic sheet group 7 through the reset push rod 8, meanwhile, the anti-offset elastic sheet group 7 is penetrated by the reinforcing agent bag 9 and used for reinforcing between the upper end plate 101 and the lower end plate 102 after being deformed by the reset push rod 8, the reinforcing agent bag 9 is positioned at the side of the movable groove 6 and is communicated and arranged through a detachable connecting pipe 901, and the upper end plate 101 and the lower end plate 102 are conveniently matched and installed through the arrangement of the connecting pipe 901;
example two
The side wall of the offset block 4 is annularly provided with a main contact groove 10, the main contact groove 10 is formed by a groove and an electric contact arranged in the groove, a spring ejector rod 5 is inserted in the main contact groove 10 in a matched manner, the middle part of the spring ejector rod 5 is provided with a conductive core which is not shown, when the spring ejector rod 5 is inserted into the bottom end of the inner part of the main contact groove 10, the spring ejector rod 5 is electrically connected with the electric contact in the groove, the inner wall of the offset groove 3 is provided with a secondary contact ring 11, the side wall of the offset groove 3 is preset with a medium cavity 12, a transmission component comprises a plunger rod head 13 which penetrates through the outer side wall of the medium cavity 12 in a sealing manner, a plunger hole is preset on the side wall of the medium cavity 12, the plunger rod head 13 penetrates through the plunger hole in a sliding manner through a sealing ring, the extending end of the plunger rod head 13 is positioned in the offset groove 3 and connected with a conductive wire of the secondary contact ring 11, and the inner contact of the main contact groove 10 and the secondary contact ring 11 are respectively extended from the end of the pipe 2 to a warning element of an external controller 201 through the conductive wire, the external controller 201 selects a PLC controller, and when the offset block 4 deflects in the offset groove 3, the main contact rod head 10 and the secondary contact ring 11 form an indirect loop with the main contact ring 11 through the spring head 5 and the secondary contact ring 11;
the side wall of the offset groove 3 is annularly provided with at least four embedded blocks 14 which are detachably arranged, a medium cavity 12 is preset at the inner side of the embedded blocks 14, any one of hydraulic oil or gas is filled in the medium cavity 12, a pushing cavity 15 is further arranged in the embedded blocks 14, the medium cavity 12 and the pushing cavity 15 are communicated through a liquid guide thin channel 16, the pipe diameter of the medium cavity 12 at the side of a medium outlet is gradually reduced, the bottom end surface of the embedded blocks 14 is provided with a transmission groove 17, the inner side wall of the pushing cavity 15 is hermetically and slidably penetrated by a spring plunger head 18, the extending end of the spring plunger head 18 extends into the transmission groove 17 and is in jacking contact with the free end of a reset push rod 8, and the moving direction of the plunger head 13 and the spring plunger head 18 is opposite;
the plunger rod head 13 consists of a main plug head extending into the medium cavity 12 for sealing sliding connection and a contact head positioned at the end of the movable groove 6, the main plug head is used for guiding and pushing in the medium cavity 12, the contact head is connected with the auxiliary contact ring 11 through a wire, the spring plunger head 18 consists of an auxiliary plug head in sealing sliding connection in the pushing cavity 15 and a spring sleeve rod at the outer side, and the spring sleeve rod generates spring thrust towards the direction of the reset push rod 8 on the auxiliary plug head;
when the offset block 4 is laterally offset in the offset groove 3, the plunger rod heads 13 at the corresponding sides transmit transmission media in the medium cavity 12 to the pushing cavity 15 through the liquid guide fine channels 16, meanwhile, the transmission media flowing into the pushing cavity 15 generate reset thrust towards the direction of the offset block 4 to the reset push rod 8 through the spring plunger heads 18, the outer side of the bottom end surface of the pushing cavity 15 is provided with the gas exchange port 401, and the gas exchange port 401 is used for realizing the gas pressure balance in the pushing cavity 15.
Example III
On the basis of the second embodiment, the bottom wall of the inner side of the movable groove 6 is provided with a major arc groove structure, a turnover cylinder 19 is movably arranged in the major arc groove, the turnover cylinder 19 can perform fixed angle turnover in the major arc groove, a cavity in the turnover cylinder 19 can be plugged into the major arc groove in a deformation mode for installation, the free ends of the anti-offset elastic sheet groups 7 are fixedly arranged on the turnover cylinder 19, limit stops 20 are arranged on the turnover cylinder 19 and positioned on two sides of the anti-offset elastic sheet groups 7, the limit stops 20 are used for limiting the offset angle of the anti-offset elastic sheet groups 7, the turnover contact displacement between the limit stops 20 and the inner wall of the movable groove 6 is larger than the movable range of the spring ejector rod 5 in the main contact head groove 10, the setting position of the limit stops 20 is set according to the movable range of the movable range A of the spring ejector rod 5 in the main contact head groove 10, the movable range A is the movable range of the upper end plate 101 and the movable range A is the movable range of the movable range A, and the movable range A is the allowable in the pile body 1, and the movable range A refers to the applicable national or regional prestressed concrete design standards/standards of the applicable state, such as European Eucode 2;
the anti-offset elastic sheet group 7 is formed by symmetrically arranging arc-shaped elastic sheets, and the arc-shaped elastic sheets can generate restoring elastic force to play an anti-offset effect when the offset block 4 is in an offset state, a through hole 21 is formed in the side wall of the anti-offset elastic sheet group 7 and is used for enabling the reset push rod 8 to slide and penetrate, the outer end of the reset push rod 8 is provided with an extension part 301 which is used for pushing and contacting the outer surface of the anti-offset elastic sheet group 7, the inner end of the reset push rod 8 is provided with a folding part 302 which is used for extending into the transmission groove 17 and contacting the top of the extending end of the spring plunger head 18, and the reset push rod 8 is always in pushing and contacting with the spring plunger head 18, so that quick correction and restoration can be carried out when the anti-offset elastic sheet group 7 is offset.
Example IV
On the basis of the third embodiment, the opposite surface walls of the upper end plate 101 and the lower end plate 102 are respectively provided with a reinforcing ring groove 22, the reinforcing ring grooves 22 are communicated with the corresponding movable grooves 6 in a penetrating way, the reinforcing agent bag body 9 is embedded in the reinforcing ring grooves 22 in an annular way and penetrates between the arc-shaped elastic sheets in the anti-deflection elastic sheet group 7, the opposite surfaces of the inner sides of the arc-shaped elastic sheets are respectively provided with a piercing sheet 23, the movable travel of the spring plunger head 18 in the main contact head groove 10 is used for moving the deflection block 4 in the range of the operation dislocation travel, when the dislocation travel of the deflection block 4 is larger than the movable travel of the spring plunger head 18 in the main contact head groove 10, the piercing sheet 23 on the right side of the arc-shaped elastic sheet pierces the right side of the reinforcing agent bag body 9, and along with the continuous dislocation deflection of the deflection block 4, the reset push rod 8 resets and pushes the outer side arc-shaped elastic sheet under the action of the transmission assembly, so that the piercing sheet 23 positioned on the left side arc-shaped elastic sheet moves the left side of the reinforcing agent bag body 9;
example five
On the basis of the fourth embodiment, the middle part of the inner side of the reinforcing agent bag body 9 is vertically provided with an isolating film part 24, the isolating film part 24 is a pvc film, and the inner part of the reinforcing agent bag body 9 is respectively provided with a curing agent and resin at two sides of the isolating film part 24;
example six
Further explanation is made on the basis of the fourth embodiment, the inside of the reinforcing agent capsule 9 is filled with an epoxy resin potting compound or a polymer grouting material mixed in advance.
A manufacturing method is used for the prestressed concrete square pile and comprises the following steps:
a: the embedded block 14 is preinstalled in the offset groove 3 at the bottom of the upper end plate 101, so that the main contact groove 10 and the auxiliary contact ring 11 penetrate out of the conduit 2 through wires and extend to an alarm element at the end of the external controller 201, an alarm circuit for the alarm element when the main contact groove 10 and the auxiliary contact ring 11 are connected in series is arranged through the external controller 201, and a trigger circuit or a PLC circuit is preset at the alarm end of the alarm element to set alarm conditions;
b: firstly, keeping an installation gap between an upper end plate 101 and a lower end plate 102 in a hoisting mode, pre-installing an anti-offset elastic sheet group 7 on a reset push rod 8 in a movable groove 6, then connecting a connecting pipe 901 at the joint of a reinforcing agent bag body 9, adding injection agent, enabling a spring plunger head 18 to be in contact with a flanging part 302 of the reset push rod 8 in a jacking mode, installing the upper end plate 101 and the lower end plate 102 in a matched mode, enabling a turnover cylinder 19 to be in rolling connection with a major arc groove in the movable groove 6 in a deformation buckling mode, limiting the offset of the anti-offset elastic sheet group 7 by a limit stop 20 on the turnover cylinder 19, and ensuring that the reinforcing agent bag body 9 is positioned between arc elastic sheets at the inner side of the anti-offset elastic sheet group 7, and meanwhile, enabling a puncture sheet 23 not to be in contact with the reinforcing agent bag body 9;
c: the outer circumferential surfaces of the upper end plate 101 and the lower end plate 102 are coated with epoxy paint 501 for corrosion prevention, so that the coated epoxy paint cannot be immersed into the movable groove 6, and the outer circumferential edges of the joints of the upper end plate 101 and the lower end plate 102 are fixed in a welding or screwing mode.
The working principle is as follows:
when the lateral displacement between the pile bodies 1 occurs, when the offset block 4 laterally deflects in the offset groove 3, the spring ejector 5 can deflect within the allowable error range in the main contact head groove 10 until the insertion end of the spring ejector 5 is electrically contacted with the electric contact end in the main contact head groove 10, the spring ejector 5 pushes the plunger rod head 13 at the corresponding side along with the offset of the offset block 4 to transfer the transmission medium in the medium cavity 12 to the pushing cavity 15 through the liquid guide fine channel 16, meanwhile, the transmission medium flowing into the pushing cavity 15 can generate a reset thrust towards the direction of the offset block 4 on the reset push rod 8 through the spring plunger head 18, specifically, when the dislocation stroke of the offset block 4 is larger than the movable stroke of the spring plunger head 18 in the main contact head groove 10, the right side of the arc-shaped elastic sheet is punctured on the right side of the reinforcing agent capsule 9, along with the continuous dislocation and offset of the offset block 4, the reset push rod 8 resets and pushes the outer arc-shaped elastic sheet under the action of the transmission component, so that the puncture sheet 23 positioned on the left arc-shaped elastic sheet punctures the left side of the reinforcing agent bag body 9, the punctured reinforcing agent bag body 9 reinforces the joint of the upper end plate 101 and the lower end plate 102, at the moment, the reset push rod 8 generates thrust in the reset direction against the offset elastic sheet group 7, meanwhile, as the circuit of the main contact head groove 10 and the auxiliary contact ring 11 is in a closed state, the alarm element is driven under the external controller 201 to alarm, so as to warn piling personnel to offset, finally pouring slurry can be injected through the conduit 2 to be discharged into the movable groove 6 through the anti-blocking net cover 601, thereby realizing auxiliary reinforcement between the upper end plate 101 and the lower end plate 102, further, after the alarm element gives an alarm, the top of the pile body 1 which is not driven into the ground is lifted upwards to a range of 3 cm through an external hoisting machine, so that the anti-offset elastic sheet group 7 can automatically correct and level when the upper end plate 101 and the lower end plate 102 are separated for a short time;
when the pile bodies 1 are subjected to lateral offset force, the pile bodies can resist offset reverse force and double-strengthen the connection part of the loose upper end plate 101 and the loose lower end plate 102.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (7)
1. The utility model provides a prestressed concrete square pile, includes by last end plate and the pile body that lower end plate carries out interconnect, its characterized in that: the middle part of the pile body is penetrated and embedded with a conduit, the bottom end surface of the upper end plate is provided with an offset groove, the center of the upper end surface of the lower end plate is provided with an offset block and is matched and inserted into the offset groove, the side wall of the offset block is annularly and movably provided with a spring ejector rod, and the inner side wall of the offset groove is annularly provided with a transmission assembly and is matched with the spring ejector rod;
the main contact groove is circumferentially distributed on the side wall of the offset block, the spring ejector rod is inserted in the main contact groove in a matched manner, the auxiliary contact ring is arranged on the inner wall of the offset groove, the medium cavity is preset on the side wall of the offset groove, the transmission component comprises a plunger rod head which penetrates through the outer side wall of the medium cavity in a sealing sliding manner, the extending end of the plunger rod head is positioned in the offset groove and is connected with the auxiliary contact ring through a wire, the contacts in the main contact groove and the auxiliary contact ring extend from the end of the wire to an alarm element at the end of an external controller through the wire, when the offset block is offset in the offset groove, the main contact groove indirectly forms a closed loop through the contact of the spring ejector rod and the plunger rod head,
the movable grooves are circumferentially distributed on opposite surfaces between the upper end plate and the lower end plate, anti-offset spring plate groups are arranged between the opposite movable grooves, reset push rods are penetrated through the middle parts of the side walls of the anti-offset spring plate groups in a sliding manner, and reinforcing agent capsules penetrate through the adjacent movable grooves in an annular manner and penetrate through the inner sides of the anti-offset spring plate groups;
the device comprises a shifting groove, a medium cavity, a pushing cavity, a driving groove, a spring plunger head, a driving groove, a driving rod and a driving rod, wherein at least four detachably installed embedded blocks are annularly arranged on the side wall of the shifting groove, the medium cavity is preset at the inner side of the embedded blocks, the pushing cavity is further arranged inside the embedded blocks, the medium cavity is communicated with the pushing cavity through a liquid guide thin channel, the bottom end face of the embedded blocks is provided with the driving groove, the inner side wall of the pushing cavity is hermetically and slidably penetrated with the spring plunger head, the extending end of the spring plunger head extends into the driving groove and is in contact with the top of the free end of the reset push rod, when the shifting block laterally shifts in the shifting groove, the driving medium in the medium cavity is transferred into the pushing cavity through the liquid guide thin channel by the plunger head on the corresponding side, meanwhile, the driving medium flowing into the pushing cavity generates reset pushing force towards the shifting block direction through the spring plunger head, and the outer side of the bottom end face of the pushing cavity is provided with a gas exchange port;
when the corresponding pile body between the upper end plate and the lower end plate is offset in a relative dislocation manner, the spring ejector rod and the transmission assembly are matched to indirectly resist the offset elastic sheet group to generate offset-resistant thrust through the reset push rod, and meanwhile, the offset-resistant elastic sheet group can puncture the reinforcing agent bag body after being deformed by the push of the reset push rod and is used for reinforcing the space between the upper end plate and the lower end plate.
2. A prestressed concrete square pile according to claim 1, characterized in that: the movable groove is characterized in that a major arc groove structure is arranged on the bottom wall of the inner side of the movable groove, a turnover cylinder is movably arranged in the major arc groove, a cavity is formed in the turnover cylinder and can be plugged into the major arc groove in a deformation mode for installation, the free ends of the anti-offset elastic sheet groups are fixedly arranged on the turnover cylinder, limit stops are arranged on the turnover cylinder and positioned on the two sides of the anti-offset elastic sheet groups, the limit stops are used for limiting the offset angle of the anti-offset elastic sheet groups, and the turnover contact displacement between the limit stops and the inner wall of the movable groove is larger than the movable range of the spring ejector rod in the main contact head groove.
3. A prestressed concrete square pile according to claim 1, characterized in that: the anti-offset elastic sheet group is formed by symmetrically arranging arc-shaped elastic sheets, and the arc-shaped elastic sheets can generate restoring elastic force to play an anti-offset effect when the offset block is in an offset state, a through hole is formed in the side wall of the anti-offset elastic sheet group and is used for sliding penetration of a reset push rod, the outer end of the reset push rod is provided with an extension part which is used for pushing and contacting the outer surface of the anti-offset elastic sheet group, and the inner end of the reset push rod is provided with a folding part which is used for extending into the transmission groove and pushing and contacting the extending end of the spring plunger head.
4. A prestressed concrete square pile according to claim 1, characterized in that: the upper end plate and the lower end plate are respectively provided with a reinforcing ring groove on the opposite surface wall, the reinforcing ring grooves are communicated with corresponding movable grooves in a penetrating mode, the reinforcing agent bag body is embedded in the reinforcing ring grooves in an annular mode and penetrates between the arc-shaped elastic sheets in the anti-deflection elastic sheet group, and the opposite surfaces of the inner sides of the arc-shaped elastic sheets are respectively provided with a puncturing sheet.
5. The prestressed concrete square pile of claim 4, wherein: the middle part of the inner side of the reinforcing agent bag body is vertically provided with a separation membrane part, and the two sides of the separation membrane part in the inner part of the reinforcing agent bag body are respectively provided with a curing agent and resin.
6. The prestressed concrete square pile of claim 4, wherein: the inside of the reinforcing agent bag body is filled with an epoxy resin pouring material or a polymer grouting material which are mixed in advance.
7. A method of making a prestressed concrete square pile as defined in any one of claims 1-6, comprising the steps of:
a: the embedded block is preinstalled in the offset groove at the bottom of the upper end plate, so that the main contact groove and the auxiliary contact ring penetrate out of the conduit through a wire and extend to an alarm element at the end of the external controller, an alarm circuit for the alarm element is arranged through the external controller when the main contact groove and the auxiliary contact ring are connected in series, and a trigger circuit or a PLC circuit is preset at the alarm end of the alarm element to set alarm conditions;
firstly, keeping a mounting gap between an upper end plate and a lower end plate in a hoisting mode, pre-mounting an anti-offset elastic sheet group on a reset push rod in a movable groove, connecting a joint of a reinforcing agent bag, adding an injection agent, enabling a spring plunger head to be in jacking contact with a flanging part of the reset push rod, installing the upper end plate and the lower end plate in a matched mode, enabling a turnover cylinder to be in rolling connection with a major arc groove in the movable groove in a deformation buckling mode, limiting the offset of the anti-offset elastic sheet group by a limit stop on the turnover cylinder, and ensuring that the reinforcing agent bag body is positioned between arc-shaped elastic sheets on the inner side of the anti-offset elastic sheet group, wherein a puncture sheet is not in contact with the reinforcing agent bag body;
c: the outer annular surfaces of the upper end plate and the lower end plate are coated with epoxy paint for corrosion prevention, the coated epoxy paint needs to be ensured not to be immersed into the movable groove end, and the joint outer annular edges of the upper end plate and the lower end plate are fixed in a welding or screwing mode.
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| CN202311404003.7A CN117144896B (en) | 2023-10-27 | 2023-10-27 | Prestressed concrete square pile and manufacturing method thereof |
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| CN113529700A (en) * | 2021-09-15 | 2021-10-22 | 启东霓辉新材料科技有限公司 | Prestressed concrete solid square pile and manufacturing method thereof |
| CN214738013U (en) * | 2020-11-27 | 2021-11-16 | 江苏汤辰东马装备科技有限公司 | Concrete hollow prestressed square pile with high bearing capacity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1572986A (en) * | 2003-06-19 | 2005-02-02 | 多摩工程株式会社 | Support device of structure |
| CN112376556A (en) * | 2020-09-20 | 2021-02-19 | 张家港市岳晟源金属制品有限公司 | Prestressed concrete hollow square pile |
| CN214738013U (en) * | 2020-11-27 | 2021-11-16 | 江苏汤辰东马装备科技有限公司 | Concrete hollow prestressed square pile with high bearing capacity |
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Denomination of invention: A prestressed concrete square pile and its manufacturing method Granted publication date: 20231229 Pledgee: Bank of China Limited by Share Ltd. Qidong branch Pledgor: Qidong Nihui New Material Technology Co.,Ltd. Registration number: Y2024980008972 |
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