CN112942332B - Tubular pile end part plugging structure and method - Google Patents
Tubular pile end part plugging structure and method Download PDFInfo
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- CN112942332B CN112942332B CN202110119922.4A CN202110119922A CN112942332B CN 112942332 B CN112942332 B CN 112942332B CN 202110119922 A CN202110119922 A CN 202110119922A CN 112942332 B CN112942332 B CN 112942332B
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- tubular pile
- steel ferrule
- plugging
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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
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a field of prestressed pipe pile construction provides a tubular pile tip block structure, and it includes the tubular pile body, and the tip rigid coupling of tubular pile body has the steel ferrule, and this internal prefabricated hole that is provided with of tubular pile extends to the tubular pile body and is close to the one end of steel ferrule, and the tip of tubular pile body is provided with and is used for shutoff open-ended shutoff piece. The method for plugging the end part of the tubular pile comprises the following steps: step 1: before the pipe pile is driven into the foundation, a plugging component is placed at the end part of the pipe pile, and the plugging component corresponds to the position of the prefabricated hole; step 2: and connecting the plugging piece with the end part of the tubular pile. The shutoff piece of this end of body of tubular pile in this application can play the effect of shutoff to the opening part in prefabricated hole, avoids impurity such as earth to enter into prefabricated hole, need not to clear stifled the prefabricated hole when the installation steel reinforcement cage, can guarantee the efficiency of construction, reduces the construction degree of difficulty.
Description
Technical Field
The application relates to the field of prestressed pipe pile construction, in particular to a pipe pile end blocking structure and a method.
Background
At present, in the process of building a foundation, a prestressed pipe pile needs to be driven into the ground surface to ensure the firmness and the stability of the foundation of the building. The prestressed concrete tubular pile can be divided into post-tensioning prestressed tubular pile and pre-tensioning prestressed tubular pile, the pre-tensioning prestressed tubular pile is a hollow cylindrical body elongated concrete prefabricated component made up by adopting pre-tensioning prestressing process and centrifugal forming method, mainly formed from cylindrical pile body, end plate and steel ferrule.
After the pipe pile is constructed, a reinforcement cage needs to be placed in a hollow preformed hole inside the pipe pile. However, when the tubular pile is pressed downwards, impurities such as soil or gravel can easily enter the hollow reserved hole inside the tubular pile, so that the reinforcement cage cannot be smoothly placed in the tubular pile, the impurities such as soil need to be cleaned, and the cleaning process is difficult and time is wasted.
Aiming at the related technologies, the inventor thinks that in the construction process, impurities such as soil and the like easily enter a hollow preformed hole in the prestressed pipe pile, and the time and manpower are consumed to remove blockage when a reinforcement cage is installed, so that the construction efficiency is greatly reduced.
Disclosure of Invention
In order to improve the construction efficiency of the prestressed pipe pile and the reinforcement cage, the application provides a pipe pile end part plugging structure and a method.
The application provides a tubular pile tip block structure and method adopts following technical scheme:
first aspect, this application provides a tubular pile tip block structure, adopts following technical scheme:
the utility model provides a tubular pile tip block structure, includes the tubular pile body, the tip rigid coupling of tubular pile body has the steel ferrule, it has the mounting hole that is used for being connected with the steel reinforcement cage to reserve on the steel ferrule, this internal prefabricated hole that is provided with of tubular pile, the open end in prefabricated hole extends to the tubular pile body and is close to the one end of steel ferrule, the tip of tubular pile body is provided with and is used for shutoff open-ended shutoff piece.
Through adopting above-mentioned technical scheme, the shutoff piece of this end of body of tubular pile can play the effect of shutoff to the opening part in prefabricated hole, avoids impurity such as earth to enter into prefabricated hole, need not to clear stifled the prefabricated hole when the installation steel reinforcement cage, can guarantee the efficiency of construction, reduces the construction degree of difficulty.
Preferably, the plugging piece is arranged as an end plate, and the end plate is detachably connected with the steel ferrule.
Through adopting above-mentioned technical scheme, before pushing down the pipe pile, cooperate the tip of end plate and tubular pile, can prevent that earth from entering into prefabricated downthehole, when the installation steel reinforcement cage, unpack the tip of end plate and tubular pile apart, installation steel reinforcement cage that can be smooth to the construction of convenient realization tubular pile.
Preferably, the plugging member comprises a protective air bag, the protective air bag comprises a supporting portion matched with the end portion of the steel hoop and a plugging portion matched with the opening, an inflating portion is arranged on one side of the supporting portion, an inflating opening is formed in the inflating portion, and the inflating portion, the supporting portion and the plugging portion are communicated with each other.
Through adopting above-mentioned technical scheme, place protection airbag at the tubular pile tip, fill gas in to the inflation inlet, all take place the inflation after filling gas in supporting part and the shutoff portion, consequently the supporting part laminates with the tubular pile tip mutually, and the shutoff portion laminates with the prefabricated hole, realizes the shutoff effect to the pipe end, avoids impurity such as earth to enter into the prefabricated hole.
Preferably, the plugging part extends at least 10cm into the prefabricated hole.
Through adopting above-mentioned technical scheme, the shutoff portion can be comparatively inseparable with the inner wall in prefabricated hole laminating mutually to the extension is to the prefabricated hole extension to can make the extension play the effect of better shutoff.
Preferably, the edge of the end face of the steel ferrule is provided with a sealing ring groove, the lower end of the supporting part is provided with an extension convex ring, and the extension convex ring is clamped with the sealing ring groove.
Through adopting above-mentioned technical scheme, under the inside abundant gaseous state of supporting part, extend bulge loop downwardly extending to extend bulge loop and sealing ring groove looks joint cooperation, can guarantee the inseparable laminating of supporting part and steel ferrule terminal surface, reduce the gap between supporting part and the steel ferrule, prevent that impurity such as earth from entering into the gap between supporting part and the steel ferrule, further prevent that earth from entering into the prefabricated hole.
Preferably, the plugging piece further comprises a pressing plate connected with the steel ferrule, the pressing plate is of an annular structure matched with the end part of the steel ferrule in shape, and the pressing plate is connected with the steel ferrule through a connecting structure.
Through adopting above-mentioned technical scheme, the clamp plate can utilize connection structure to be connected with the steel ferrule, and under the limiting displacement of clamp plate, protective airbag can be inseparable laminate mutually with the steel ferrule to can play better guard action to the prefabricated hole, avoid impurity such as earth to enter into the prefabricated hole.
Preferably, the connection structure comprises a delay plate fixedly connected with the outer side of the steel ferrule, the lower end of the delay plate is provided with a clamping groove, a clamping ring is hinged to the pressing plate, and the clamping ring is in clamping fit with the clamping groove.
Through adopting above-mentioned technical scheme, when clamp plate and steel ferrule cooperate, rotate the snap ring, make snap ring and card and looks joint cooperation, realize that the clamp plate is spacing to protective air bag, guarantee protective air bag to the shutoff effect in prefabricated hole.
Preferably, the pressing plate is fixedly connected with a protection plate, the protection plate corresponds to the inflation part in position, the protection plate is provided with an inflation connector corresponding to the inflation inlet in position, the inflation connector is provided with a connecting sleeve, and the connecting sleeve is provided with a sealing cover.
Through adopting above-mentioned technical scheme, the guard plate can play the effect of protection to aerifing the portion, can utilize the equipment of aerifing directly to be connected with adapter sleeve simultaneously when aerifing, can utilize sealed lid to play sealed effect to adapter sleeve after aerifing the completion.
In a second aspect, the application provides a method for plugging an end of a tubular pile, which adopts the following technical scheme:
a tubular pile end plugging method comprises the following steps:
step 1: before the pipe pile is driven into the foundation, a plugging component is placed at the end part of the pipe pile, and the plugging component corresponds to the position of the prefabricated hole;
step 2: and connecting the plugging piece with the end part of the tubular pile.
Through adopting above-mentioned technical scheme, before the tubular pile pushes down, utilize the shutoff piece to play the effect of shutoff to the prefabricated hole of pipe end, can avoid impurity such as earth to enter into prefabricated downthehole, guarantee the smooth installation of steel reinforcement cage.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the plugging piece at the end part of the tubular pile body can plug the opening of the prefabricated hole, so that impurities such as soil are prevented from entering the prefabricated hole, the prefabricated hole is not required to be cleaned when a reinforcement cage is installed, the construction efficiency can be ensured, and the construction difficulty is reduced;
2. the protection air bag is placed at the end part of the tubular pile, air is filled into the air inflation port, and the supporting part and the plugging part are inflated, so that the supporting part is attached to the end part of the tubular pile, the plugging part is attached to the prefabricated hole, the plugging effect on the end part of the tubular pile is realized, and impurities such as soil and the like are prevented from entering the prefabricated hole;
3. under the inside gaseous state of filling up of supporting part, extend the bulge loop downwardly extending to extend the bulge loop and cooperate with sealing ring groove looks joint, can guarantee the inseparable laminating of supporting part and steel ferrule terminal surface, reduce the gap between supporting part and the steel ferrule, prevent that impurity such as earth from entering into the gap between supporting part and the steel ferrule, further prevent that earth from entering into prefabricated downthehole.
Drawings
Fig. 1 is an explosion structure diagram of a tubular pile body and a plugging piece in embodiment 1 of a tubular pile end plugging structure.
Fig. 2 is a schematic overall structure diagram of a blocking structure in the embodiment 2 of the tubular pile end blocking structure.
Fig. 3 is an enlarged schematic view of a portion a of fig. 2.
Fig. 4 is an exploded view of the blocking piece and the tubular pile body in fig. 2.
Fig. 5 is a schematic sectional view of a blocking structure in example 2 of a tubular pile end blocking structure.
Description of reference numerals: 1. a tubular pile body; 2. a steel ferrule; 3. mounting holes; 4. prefabricating holes; 5. a blocking member; 501. an end plate; 511. a protective air bag; 512. pressing a plate; 6. a support portion; 7. a plugging section; 8. an inflation section; 9. an inflation inlet; 10. a protection plate; 11. connecting a sleeve; 13. extending the plate; 131. a clamping groove; 14. a snap ring; 15. sealing the ring groove; 16. an extension convex ring; 17. avoiding the hole.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses tubular pile tip block structure.
Example 1
Referring to fig. 1, tubular pile tip block structure includes tubular pile body 1, and the tip rigid coupling of tubular pile body 1 has steel ferrule 2, reserves on the steel ferrule 2 to be used for the mounting hole 3 of being connected with the steel reinforcement cage, is provided with prefabricated hole 4 in the tubular pile body 1, and the open end in prefabricated hole 4 extends to tubular pile body 1 and is close to the one end of steel ferrule 2, and the tip of tubular pile body 1 is provided with and is used for shutoff open-ended shutoff piece 5.
Referring to fig. 1, the blocking member 5 is configured as an end plate 501, and the end plate 501 is detachably connected to the steel ferrule 2, specifically, the end plate 501 may be configured as a metal plate, and the thickness may be set between 3mm and 15 mm. The end plate 501 may be attached by bolts or may be welded to the steel ferrule 2. After the connection is completed, the end plate 501 can play a role in plugging the prefabricated hole 4 on the pipe pile, so that soil is prevented from entering the prefabricated hole 4, and when a reinforcement cage needs to be installed, the end plate 501 and the steel ferrule 2 are detached, so that the reinforcement cage can be installed smoothly.
Referring to fig. 1, when the end plate 501 is bolted to the steel ferrule 2, the bolt is directly removed to achieve removal. When the end plate 501 and the steel ferrule 2 are welded, spot welding can be adopted in the welding process, and during disassembly, the positions of several spot welding are cut open to realize disassembly and separation.
The implementation principle of the embodiment 1 is as follows: place end plate 501 on steel ferrule 2, utilize spot welding or bolted connection's mode to link together end plate 501 and steel ferrule 2, after the tubular pile pushes down the completion, dismantle end plate 501, can install the steel reinforcement cage smoothly.
Example 2
Referring to fig. 2, the present embodiment is different from embodiment 1 in that the blocking member 5 includes a protection airbag 511 and a pressing plate 512 disposed at the upper end of the protection airbag 511, and the pressing plate 512 is configured as a ring structure matching with the shape of the end of the steel ferrule 2.
Referring to fig. 2 and 3, the pressing plate 512 is connected with the steel ferrule 2 through a connecting structure, the connecting structure includes an extension plate 13 fixedly connected with the outer side of the steel ferrule 2, a clamping groove 131 is formed at the lower end of the extension plate 13, a snap ring 14 is hinged on the pressing plate 512, the snap ring 14 can be hinged with the pressing plate 512 through a hinge, 4 groups corresponding to each other are arranged on the snap ring 14 and the extension plate 13, and the snap ring 14 is in clamping fit with the clamping groove 131.
Referring to fig. 4 and 5, the protective airbag 511 includes a support portion 6 engaged with the end of the steel ferrule 2 and a blocking portion 7 engaged with the opening, an inflation portion 8 is disposed on one side of the support portion 6, an inflation port 9 is disposed on the inflation portion 8, and the inflation portion 8, the support portion 6 and the blocking portion 7 are all communicated with each other. The protective airbag 511 is made of a PET film, and the thickness can be set to 0.5mm-1.5 mm.
Referring to fig. 4 and 5, the protection plate 10 is fixedly connected to the pressing plate 512, the protection plate 10 corresponds to the inflation portion 8, and the inflation portion 8 is wrapped by the protection plate 10, so that the inflation portion 8 can be sufficiently protected. The protection plate 10 is provided with an inflation connector, the inflation connector is provided with a connecting sleeve 11, the inflation inlet 9 extends into the connecting sleeve 11 and is in sealing connection with the connecting sleeve 11, the connecting sleeve 11 is provided with a sealing cover, the sealing cover can be in threaded connection with the connecting sleeve 11, the end part of the connecting sleeve 11 can be provided with a sealing ring, and the sealing performance of connection between the sealing cover and the connecting sleeve 11 is guaranteed.
After the pressing plate 512 is installed, the snap ring 14 is rotated to match the snap ring 14 with the extension plate 13, before construction, an auxiliary tool such as an air pump or an inflator is used for inflating the connecting sleeve 11, air flows into the protective air bag 511, and after the protective air bag 511 is in an inflated state, the sealing cover is in threaded connection with the connecting sleeve 11, so that the protective air bag 511 is sealed.
Under the full state of air bag 511, air bag 511 will push up clamp plate 512, can make snap ring 14 and the inseparable joint of clamping groove 131 together, realize the spacing fixed to air bag 511.
Referring to fig. 4 and 5, the plugging portion 7 extends at least 10cm into the prefabricated hole 4, buffer layers are fixedly connected to the upper end surface of the steel ferrule 2 and the prefabricated hole 4, and the buffer layers can be made of rubber. The edge of the end face of the steel ferrule 2 is provided with a sealing ring groove 15, the lower end of the supporting portion 6 is provided with an extending convex ring 16, the extending convex ring 16 is clamped with the sealing ring groove 15, the extending convex ring 16 extends downwards in the filling state of the protective airbag 511, and the extending convex ring 16 can be clamped with the sealing ring groove 15, so that the sealing performance of the protective airbag 511 to the pipe end can be ensured.
Referring to fig. 5, the thickness of the connection between the extension and the support portion 6 is relatively thick, so as to prevent the breakage of the protection airbag 511 during the friction with the steel ferrule 2 and ensure the sealing performance of the protection airbag 511.
Referring to fig. 5, the pressing plate 512 and the supporting portion 6 are both provided with avoiding holes 17 corresponding to the mounting holes 3, and the arrangement of the avoiding holes 17 enables the reinforcement cage to be smoothly connected with the steel ferrule 2.
The implementation principle of the embodiment 2 is as follows: the protection air bag 511 and the pressure plate 512 are placed at the upper end of the steel hoop 2, and the snap ring 14 is rotated to make the snap ring 14 and the extension plate 13 matched. The connecting sleeve 11 is inflated by an auxiliary tool such as an air pump or an inflator, the air flows into the protective air bag 511, and after the protective air bag 511 is in the inflated state, the sealing cover is in threaded connection with the connecting sleeve 11, so that the protective air bag 511 is sealed. When the air bag 511 is inflated, the extension convex ring 16 extends downwards, and the extension convex ring 16 can be clamped with the sealing ring groove 15, so that the sealing performance of the air bag 511 on the pipe end can be ensured. When the steel reinforcement cage needs to be installed, the steel reinforcement cage is directly corresponding to the position of the prefabricated hole 4, the protective air bag 511 can be directly punctured by the steel reinforcement cage under the action of gravity, and the steel reinforcement cage can be installed without detaching the plugging piece 5.
The embodiment of the application also discloses a method for plugging the end part of the tubular pile. The method comprises the following steps:
step 1: before the pipe pile is driven into the foundation, a plugging component is placed at the end part of the pipe pile, and corresponds to the position of the prefabricated hole 4;
step 2: and connecting the plugging component with the end part of the tubular pile. Here, the blocking member is installed in a different manner from the first embodiment in which the blocking member 5 needs to be removed before the reinforcement cage is installed, and the second embodiment in which the blocking member 5 does not need to be removed before the reinforcement cage is installed.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (4)
1. The utility model provides a tubular pile tip block structure, includes tubular pile body (1), the tip rigid coupling of tubular pile body (1) has steel ferrule (2), it has mounting hole (3) that are used for being connected with the steel reinforcement cage to reserve on steel ferrule (2), be provided with prefabricated hole (4) in tubular pile body (1), the open end in prefabricated hole (4) extends to tubular pile body (1) and is close to the one end of steel ferrule (2), its characterized in that: the end part of the tubular pile body (1) is provided with a plugging piece (5) for plugging the opening;
the blocking piece (5) comprises a protective air bag (511), the protective air bag (511) comprises a supporting portion (6) matched with the end portion of the steel hoop (2) and a blocking portion (7) matched with the opening, an inflating portion (8) is arranged on one side of the supporting portion (6), an inflating opening (9) is formed in the inflating portion (8), and the inflating portion (8), the supporting portion (6) and the blocking portion (7) are communicated with one another;
a sealing ring groove (15) is formed in the edge of the end face of the steel ferrule (2), an extension convex ring (16) is arranged at the lower end of the supporting part (6), and the extension convex ring (16) is clamped with the sealing ring groove (15);
the plugging piece (5) further comprises a pressing plate (512) connected with the steel ferrule (2), the pressing plate (512) is of an annular structure matched with the end part of the steel ferrule (2) in shape, and the pressing plate (512) is connected with the steel ferrule (2) through a connecting structure.
2. The tubular pile end blocking structure of claim 1, characterized in that: the plugging part (7) extends at least 10cm into the prefabricated hole (4).
3. The tubular pile end blocking structure of claim 1, characterized in that: the connecting structure comprises a delay plate (13) fixedly connected with the outer side of the steel ferrule (2), a clamping groove (131) is formed in the lower end of the delay plate (13), a clamping ring (14) is hinged to the pressing plate (512), and the clamping ring (14) is in clamping fit with the clamping groove (131).
4. The tubular pile end blocking structure of claim 1, characterized in that: the clamp plate is characterized in that a protection plate (10) is fixedly connected to the pressing plate (512), the protection plate (10) is corresponding to the air inflation part (8), an air inflation connector corresponding to the air inflation opening (9) in position and size is arranged on the protection plate (10), a connecting sleeve (11) is arranged at the air inflation connector, and a sealing cover is arranged at the connecting sleeve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110119922.4A CN112942332B (en) | 2021-01-28 | 2021-01-28 | Tubular pile end part plugging structure and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110119922.4A CN112942332B (en) | 2021-01-28 | 2021-01-28 | Tubular pile end part plugging structure and method |
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| Publication Number | Publication Date |
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| CN112942332A CN112942332A (en) | 2021-06-11 |
| CN112942332B true CN112942332B (en) | 2022-06-10 |
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| CN202110119922.4A Active CN112942332B (en) | 2021-01-28 | 2021-01-28 | Tubular pile end part plugging structure and method |
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| CN203066066U (en) * | 2013-01-22 | 2013-07-17 | 中国十七冶集团有限公司 | Soil-proof cover plate for pile hole of prestressed concrete tubular pile |
| CN203741834U (en) * | 2014-01-29 | 2014-07-30 | 陈东曙 | Pile barrel structure with air bag |
| CN205636735U (en) * | 2016-04-26 | 2016-10-12 | 江苏仪征苏中建设有限公司 | But secondary is used as in advance stake hole guard plate that core layer board was filled out to stress tube stake pile bolck |
| CN106592595A (en) * | 2016-11-30 | 2017-04-26 | 上海市基础工程集团有限公司 | Method for sealing PHC pipe pile orifice through air bag |
| CN207812443U (en) * | 2017-12-22 | 2018-09-04 | 菏泽学院 | A kind of pre-stress hollow square pile |
| CN108625358A (en) * | 2018-06-08 | 2018-10-09 | 吴健 | Pile body protective tip and prefabricated pile with the pile body protective tip |
| CN112211196A (en) * | 2020-10-29 | 2021-01-12 | 中冶天工集团有限公司 | Protection device and protection method for preventing soil from flowing backwards into pile core in pipe pile construction |
-
2021
- 2021-01-28 CN CN202110119922.4A patent/CN112942332B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203066066U (en) * | 2013-01-22 | 2013-07-17 | 中国十七冶集团有限公司 | Soil-proof cover plate for pile hole of prestressed concrete tubular pile |
| CN203741834U (en) * | 2014-01-29 | 2014-07-30 | 陈东曙 | Pile barrel structure with air bag |
| CN205636735U (en) * | 2016-04-26 | 2016-10-12 | 江苏仪征苏中建设有限公司 | But secondary is used as in advance stake hole guard plate that core layer board was filled out to stress tube stake pile bolck |
| CN106592595A (en) * | 2016-11-30 | 2017-04-26 | 上海市基础工程集团有限公司 | Method for sealing PHC pipe pile orifice through air bag |
| CN207812443U (en) * | 2017-12-22 | 2018-09-04 | 菏泽学院 | A kind of pre-stress hollow square pile |
| CN108625358A (en) * | 2018-06-08 | 2018-10-09 | 吴健 | Pile body protective tip and prefabricated pile with the pile body protective tip |
| CN112211196A (en) * | 2020-10-29 | 2021-01-12 | 中冶天工集团有限公司 | Protection device and protection method for preventing soil from flowing backwards into pile core in pipe pile construction |
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| CN112942332A (en) | 2021-06-11 |
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