CN114250770A - End-buckle type mechanical connecting joint for precast concrete uplift pipe pile - Google Patents
End-buckle type mechanical connecting joint for precast concrete uplift pipe pile Download PDFInfo
- Publication number
- CN114250770A CN114250770A CN202111662413.2A CN202111662413A CN114250770A CN 114250770 A CN114250770 A CN 114250770A CN 202111662413 A CN202111662413 A CN 202111662413A CN 114250770 A CN114250770 A CN 114250770A
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- tubular pile
- big
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- pile
- hole
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- E02D5/58—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
- E02D5/24—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
Abstract
The invention discloses an end-buckle type mechanical connecting joint for precast concrete anti-pulling tubular piles, which comprises key grooves arranged at the end parts of precast tubular piles, end plates arranged on the end parts of the precast tubular piles, bony connecting pieces and blocking blocks, wherein the bony connecting pieces are used for connecting an upper precast tubular pile and a lower precast tubular pile, arc-shaped big and small head long round holes are formed in the end plates, the bony connecting pieces penetrate through big end holes in the arc-shaped big and small head long round holes in the end plate at one end of the lower precast tubular pile and enter the key grooves of the lower precast tubular pile, the bony connecting pieces are moved to the positions of the small head holes in the arc-shaped big and small head long round holes, the big end holes in the arc-shaped big and small head long round holes in the end plate at the end part of the upper precast tubular pile are inserted into the fixed bony connecting pieces, and the pile body of the upper precast tubular pile is rotated to realize the end-buckle of the upper precast tubular pile and the lower precast tubular pile. The invention can solve the connection problem of the precast concrete tubular pile, has simple structure, convenient installation and reliable force transmission, can ensure that the upper pile and the lower pile have good common working performance, and ensures the safety of the joint.
Description
Technical Field
The invention belongs to the technical field of precast concrete tubular piles in building engineering, and particularly relates to an end buckle type mechanical connecting joint for a precast concrete uplift tubular pile.
Background
The precast concrete tubular pile is formed by a centrifugal method, and redundant moisture in the concrete is thrown out due to centrifugal force, so the concrete is compact, has high strength, strong capability of resisting underground water and other corrosion, has the characteristics of low production cost, steel saving, environmental protection, reliable quality, simple construction, low technical difficulty and the like, and is widely applied to basement anti-floating design of industrial and civil buildings. In the construction process of the precast concrete uplift pipe pile, the precast pile is generally a multi-section pile and needs to be driven into a soil layer section by section or pressed into the soil layer. For the uplift pipe pile, the connection between piles is very important in the construction process, and the uplift performance of the engineering pile is greatly influenced. At present, the tubular piles are mainly connected by welding and mechanical connection. The welding connection is that the end plates of the upper pile and the lower pile are welded together through girth welding on site, the tension of the uplift pile is mainly transmitted through a welding seam, and the quality of the welding seam becomes a key point in the quality of tubular pile connection and pile foundation construction. However, because of more factors influencing the welding quality, the quality of the connecting joint cannot be guaranteed, potential safety hazards exist, and the pulling-resistant tubular pile is specified in plain text in part of areas to forbid welding of the connecting joint. The mechanical connection mode is that two sections of piles are connected together through a plurality of mechanical connection joints, and the mechanical connection has the advantages of low technical requirements on workers, reliable quality and the like. At present, various uplift pile mechanical connection modes exist in China, but most of the uplift pile mechanical connection modes are complex in manufacturing and production process and high in cost, and the defects that stress is unreasonable and the like exist in part of the mechanical connection modes. The mechanical connection method of the tubular pile can meet the requirements of pulling strength, simple manufacture, convenient construction, low cost and the like, and the value of changing the mechanical connection mode can be reflected.
Disclosure of Invention
The invention aims to provide a mechanical connection method of a prestressed concrete uplift pipe pile, which can meet the requirements of uplift strength, simple manufacture, convenient construction, low cost and the like, and improve the overall quality level of pipe pile construction.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an end-buckle formula precast concrete resistance to plucking tubular pile mechanical connection connects, including set up at the keyway of precast tubular pile tip, set up end plate on the precast tubular pile tip, be used for connecting the osseous connecting piece of upper and lower two precast tubular piles and be used for the smooth piece that hinders of fixed osseous connecting piece, it has the big end slotted hole of arc type to open on the end plate, the keyway is corresponding with the big end slotted hole position of arc type big end, the osseous connecting piece passes big end hole in the big end slotted hole of arc type big end on lower section precast tubular pile tip and gets into lower section precast tubular pile keyway, removes the osseous connecting piece to the big end hole position in the big end slotted hole of arc type big end slotted hole, hinder the smooth piece and put into fixed osseous connecting piece from the big end hole of end plate arc type big end slotted hole, insert the osseous connecting piece after fixing with the big end hole of arc type big end slotted hole of upper section precast tubular pile tip end plate, rotatory upper section precast tubular pile body, the osseous connecting piece is moved into the small end hole position of the arc-shaped big and small end long circular hole of the upper section of the prefabricated pipe pile, and the end buckle fastening of the upper section of the prefabricated pipe pile and the lower section of the prefabricated pipe pile is realized.
Preferably, the osseous connection piece comprises a connection piece body and pier heads arranged at two ends of the connection piece body, the diameter of the connection piece body is smaller than that of the pier heads, and the diameter of the pier heads is smaller than the diameter of the big end of the arc-shaped big and small head long round holes and larger than the diameter of the small end of the arc-shaped big and small head long round holes.
Preferably, the depth of the key groove at the end part of the precast tubular pile is more than or equal to the height of the pier head of the bony connecting piece; the width of the key groove at the end part of the prefabricated pipe pile is the same as the diameter of the big end of the big and small long round holes on the end plate of the prefabricated pipe pile; the length of the key groove at the end part of the prefabricated tubular pile is the same as that of the big and small round holes in the end plate of the prefabricated tubular pile.
Preferably, the diameter of the big end of the arc-shaped big and small long round hole of the prefabricated tubular pile end plate is larger than or equal to the diameter of the pier head of the bony connecting piece; the small-head aperture of the arc-shaped big-and-small-head long round hole is smaller than the pier head diameter of the bony connecting piece, so that the bony connecting piece can be placed into the big-head hole, and the bony connecting piece can be clamped after moving to the small-head hole of the long round hole.
Preferably, the large and small directions of the arc-shaped large and small long round holes of the upper section of the prefabricated tubular pile end plate are opposite to the large and small directions of the arc-shaped large and small long round holes of the lower prefabricated tubular pile end plate.
Preferably, the number of the arc-shaped large and small head oblong holes in the prefabricated tubular pile end plate corresponds to the number of the bony connecting pieces, the diameter of the body of each bony connecting piece, the height of a pier head and the number of the bony connecting pieces are determined according to the strength requirement of the pile body, and the number of the oblong holes is not less than 4.
Preferably, the diameter of the big end hole of the arc-shaped big and small end oblong hole of the lower section prefabricated pipe pile end plate is equal to that of the lower section prefabricated pipe pile end plate, and the height is smaller than or equal to the thickness of the prefabricated pipe pile end plate plus the depth of the key groove.
The invention can solve the connection problem of the precast concrete pile, has the advantages of simple structure, convenient installation and reliable force transmission mechanism, can ensure that the upper pile section and the lower pile section have good common working performance, and ensures the safety of the whole structure system.
Drawings
Fig. 1 is a schematic view of a key groove at the pile end of an upper prefabricated pipe pile.
Fig. 2 is a schematic view of an upper-section prefabricated pipe pile end plate of the invention.
Fig. 3 is a schematic view of a lower-section precast tubular pile end keyway.
Fig. 4 is a schematic view of the lower-section prefabricated pipe pile end plate of the invention.
Fig. 5 is a schematic view of the bony connector of the invention.
FIG. 6 is a schematic view of the anti-slip block of the present invention.
Fig. 7 is a schematic view of the installation of the lower prefabricated pipe pile, the bony connecting piece and the anti-slip block.
Fig. 8 is a first schematic view of the lower prefabricated tubular pile and the bony connecting piece of the invention.
Fig. 9 is a second schematic view of the lower prefabricated tubular pile and the bony connecting piece of the invention.
Fig. 10 is a schematic diagram showing the relationship between the components after the precast tubular pile connection of the present invention is completed.
Fig. 11 is a schematic view of the anti-loosening of the precast tubular pile after the connection is completed.
Wherein: 1, prefabricating a tubular pile at an upper section; 2, prefabricating a tubular pile at a lower section; 3, prefabricating an upper section of a tubular pile end plate; 4, prefabricating a tubular pile end plate at the lower section; 5-a bony connector; 6, prefabricating a key groove of a pile body of the tubular pile at an upper section; 7, lower prefabricated pipe pile body key grooves; 8, arc-shaped big and small end long circular holes of the upper section prefabricated pipe pile end plate; 81-big end holes of arc-shaped big and small end long round holes of the upper section prefabricated pipe pile end plate; 82, small end holes of arc-shaped big and small end long round holes of an upper section prefabricated pipe pile end plate; 9-arc big and small end long circular holes of the lower section prefabricated pipe pile end plate; 91-big end holes of arc-shaped big and small end long round holes of the lower section prefabricated pipe pile end plate; 92-small end holes of arc-shaped big and small end long round holes of the lower section prefabricated pipe pile end plate; 51-pier head; 10-a slide-resistant block; and 11, welding a groove.
Detailed Description
The end-buckling type precast concrete uplift pipe pile mechanical connection joint of the invention is explained in detail with the accompanying drawings.
Examples
As shown in fig. 1 to 11, the end-buckle type mechanical connection joint for precast concrete anti-pulling tubular piles, provided by the invention, is used for solving the connection problem between precast concrete tubular piles, has the advantages of simple structure, convenience in installation and reliable force transmission, and can ensure that an upper section of precast tubular pile 1 and a lower section of precast tubular pile 2 have good common working performance. This mechanical connection connects including setting up at the prefabricated tubular pile shaft keyway 6 of the upper segment of 1 tip of upper segment precast tubular pile, setting up at the prefabricated tubular pile shaft keyway 7 of the lower segment of 2 tips of lower segment precast tubular pile, setting up prefabricated tubular pile end plate 3 of the upper segment on prefabricated tubular pile 1 of upper segment, setting up prefabricated tubular pile end plate 4 of the lower segment on prefabricated tubular pile 2 of lower segment, the bony connecting piece 5 that is used for connecting prefabricated tubular pile 1 of upper segment and prefabricated tubular pile 2 of lower segment.
Wherein, the upper prefabricated tubular pile end plate 3 is provided with an arc big and small end long round hole 8 of the upper prefabricated tubular pile end plate, and the lower prefabricated tubular pile end plate 4 is provided with an arc big and small end long round hole 9 of the lower prefabricated tubular pile end plate. The upper prefabricated tubular pile body key groove 6 corresponds to the position of the arc big and small round long hole 8 of the upper prefabricated tubular pile end plate, and the lower prefabricated tubular pile body key groove 7 corresponds to the position of the arc big and small round long hole 9 of the lower prefabricated tubular pile end plate. The arc-shaped big and small end long round holes 8 of the upper section of the prefabricated tubular pile end plate are the same as the arc-shaped big and small end long round holes 9 of the lower section of the prefabricated tubular pile end plate in shape and size, the number of the arc-shaped big and small end long round holes 8 of the upper section of the prefabricated tubular pile end plate is equal to the number of the arc-shaped big and small end long round holes 9 of the lower section of the prefabricated tubular pile end plate in size and direction.
The bony connecting piece 5 comprises a connecting piece body and pier heads 51 arranged at two ends of the connecting piece body, the diameter of the connecting piece body is smaller than the diameter of the pier heads 51, the diameter of the pier heads 51 is smaller than the 91 pore diameter of the big head hole of the arc big and small head long circular hole of the lower prefabricated tubular pile end plate and is larger than the 92 pore diameter of the small head hole of the arc big and small head long circular hole of the lower prefabricated tubular pile end plate. The upper prefabricated tubular pile 1 and the lower prefabricated tubular pile 2 are connected through a bone connecting piece 5 and are prevented from loosening through a sliding block 10.
The number of the arc-shaped large and small head oblong holes 9 of the lower section prefabricated tubular pile end plate corresponds to the number of the bony connecting pieces 5, the diameter of the body of each bony connecting piece, the height of a pier head and the number of the bony connecting pieces are determined according to the strength requirement of the pile body, and the number of the bony connecting pieces is not less than 4.
Lower section prefabricated tubular pile shaft keyway 7 is corresponding with lower section prefabricated tubular pile end plate arc big or small round hole 9 position, lower section prefabricated tubular pile shaft keyway 7 degree of depth more than or equal to pier nose 51 height, lower section prefabricated tubular pile shaft keyway 7 width is the same with the big head hole 91 aperture of lower section prefabricated tubular pile end plate arc big or small round hole, and lower section prefabricated tubular pile shaft keyway 7 length is the same with the length of lower section prefabricated tubular pile end plate arc big or small round hole 9. The prefabricated tubular pile body keyway of upper segment 6 is corresponding with prefabricated tubular pile end plate arc big or small round hole 8 position of upper segment, the prefabricated tubular pile body keyway of upper segment degree of depth more than or equal to pier nose 51 height, and the prefabricated tubular pile body keyway of upper segment 6 width is the same with big head hole 81 aperture of prefabricated tubular pile end plate arc big or small round hole of upper segment, and the prefabricated tubular pile body keyway of upper segment 6 length is the same with the length of prefabricated tubular pile end plate arc big or small round hole 8 of upper segment.
Further, the diameter of a big end hole 91 of the arc-shaped big end and small end long round hole of the lower prefabricated tubular pile end plate is larger than or equal to the diameter of the pier head 51, and the diameter of a small end hole 92 of the arc-shaped big end and small end long round hole of the lower prefabricated tubular pile end plate is smaller than the diameter of the pier head 51, so that the big end hole 91 of the arc-shaped big end and small end long round hole of the lower prefabricated tubular pile end plate can be placed in the bony connecting piece 5, and the bony connecting piece 5 can be clamped after moving to the position of the small end hole 92 of the arc-shaped big end and small end long round hole of the lower prefabricated tubular pile end plate. The big end hole 81 of the arc big and small end long round hole of the upper section prefabricated pipe pile end plate is the same as the big end hole 91 of the arc big and small end long round hole of the lower section prefabricated pipe pile end plate, and the small end hole 82 of the arc big and small end long round hole of the upper section prefabricated pipe pile end plate is the same as the small end hole 92 of the arc big and small end long round hole of the lower section prefabricated pipe pile end plate.
The diameter of the block 10 is equal to the diameter of a big end hole 91 of the arc-shaped big and small end long round hole of the lower prefabricated tubular pile end plate, and the height of the lower prefabricated tubular pile end plate is less than or equal to the thickness of the lower prefabricated tubular pile end plate 4 and the depth of the upper prefabricated tubular pile body key groove 7 and the lower prefabricated tubular pile body key groove 7.
In this embodiment, after the lower prefabricated tubular pile 2 is pressed into the soil layer in place, the bone connecting piece 5 is placed into the lower prefabricated tubular pile body key groove 7 through the big end hole 91 of the arc-shaped big and small end oblong hole of the lower prefabricated tubular pile end plate. And moving the bony connecting piece 5 to the small end hole 92 of the arc-shaped big and small end long round hole of the lower prefabricated tubular pile end plate, putting the block 10 to the big end hole 91 of the arc-shaped big and small end long round hole of the lower prefabricated tubular pile end plate, and clamping the moving bony connecting piece 5. The upper prefabricated tubular pile 1 is lifted to be in place, the big end hole 81 of the arc big and small end long circular hole of the upper prefabricated tubular pile end plate is aligned to the bone connecting piece 5 which is in place, the lower prefabricated tubular pile end plate 4 slowly falls, and the pier head 51 of the movable bone connecting piece 5 exposed out of the lower prefabricated tubular pile end plate enters the big end hole 81 of the arc big and small end long circular hole of the upper prefabricated tubular pile end plate. The upper prefabricated tubular pile 1 is rotated along the large end hole 81 of the arc-shaped large and small end long circular hole of the upper prefabricated tubular pile end plate to the small end hole 82 of the arc-shaped large and small end long circular hole of the upper prefabricated tubular pile end plate, so that the bony connecting piece 5 is positioned in the small end hole 82 of the arc-shaped large and small end long circular hole of the upper prefabricated tubular pile end plate, and the upper prefabricated tubular pile end plate 3 is clamped by the pier head 51. And finally, welding the connected upper prefabricated tubular pile 1 and lower prefabricated tubular pile 2 intermittently along the welding groove 11 at the joint of the tubular pile bodies to prevent looseness, wherein the welding is only a measure for preventing looseness in the pile pressing process.
The invention can solve the connection problem of the precast concrete pile, has the advantages of simple structure, convenient installation and reliable force transmission mechanism, can ensure that the upper pile section and the lower pile section have good common working performance, ensures the safety of an integral structure system, and improves the integral quality level of the pipe pile construction. Therefore, the method has good application prospect in practical engineering.
The above examples are merely illustrative of the basic principles, installation procedures and other technical solutions of the present invention, and are not limiting, and it should be understood by those skilled in the art that modifications and equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention. All equivalent changes and approximate substitutions made according to the contents described in the patent protection scope of the present invention should be covered in the claims of the present invention.
Claims (7)
1. The utility model provides an end fastener formula precast concrete resistance to plucking tubular pile mechanical connection connects which characterized in that: including setting up at the keyway of precast tubular pile tip, setting up end plate on precast tubular pile tip, be used for connecting the osseous connecting piece of upper and lower two precast tubular piles and be used for fixing the anti-sliding block of osseous connecting piece, it has the big end slotted hole of arc type to open on the end plate, the keyway is corresponding with the big end slotted hole position of arc type big end slotted hole, the osseous connecting piece passes big end hole and gets into lower section precast tubular pile keyway in the big end hole in the arc type big end slotted hole on lower section precast tubular pile one end plate, removes the osseous connecting piece to the big end hole position in the arc type big end slotted hole, the anti-sliding block puts into fixed osseous connecting piece from the big end hole of end plate arc type big end slotted hole, inserts the osseous connecting piece after fixing with the big end hole of the arc type big end slotted hole of upper section precast tubular pile tip end plate, rotatory upper section precast tubular pile shaft body, make the osseous connecting piece immigrate the little end hole position of big end hole of upper section precast tubular pile arc type big end slotted hole, and the buckling of the upper prefabricated pipe pile end and the lower prefabricated pipe pile end is realized.
2. The mechanical end-buckle-type mechanical connection joint for precast concrete anti-pulling tubular piles according to claim 1, wherein the bony connecting pieces comprise connecting piece bodies and pier heads arranged at two ends of the connecting piece bodies, the diameters of the connecting piece bodies are smaller than the diameters of the pier heads, and the diameters of the pier heads are smaller than the large-head aperture of the arc-shaped large-head and small-head slotted holes and larger than the small-head aperture of the arc-shaped large-head and small-head slotted holes.
3. The end-button type precast concrete anti-pulling tubular pile mechanical connecting joint as claimed in claim 1, wherein the depth of the key groove at the end of the precast tubular pile is greater than or equal to the height of the pier head of the bony connecting piece; the width of the key groove at the end part of the prefabricated pipe pile is the same as the diameter of the big end of the big and small long round holes on the end plate of the prefabricated pipe pile; the length of the key groove at the end part of the prefabricated tubular pile is the same as that of the big and small round holes in the end plate of the prefabricated tubular pile.
4. The end-button type mechanical connecting joint for the precast concrete anti-pulling tubular pile according to claim 1, wherein the diameter of the big end of the arc-shaped big and small long round hole of the end plate of the precast tubular pile is larger than or equal to the diameter of the pier head of the bony connecting piece; the small-head aperture of the arc-shaped big-and-small-head long round hole is smaller than the pier head diameter of the bony connecting piece, so that the bony connecting piece can be placed into the big-head hole, and the bony connecting piece can be clamped after moving to the small-head hole of the long round hole.
5. The mechanical end connector for the end-button type precast concrete anti-pulling tubular pile according to claim 1, wherein the large and small head directions of the arc-shaped large and small head oblong holes of the upper section precast tubular pile end plate are opposite to the large and small head directions of the arc-shaped large and small head oblong holes of the lower section precast tubular pile end plate.
6. The mechanical end-buckle-type mechanical connector for precast concrete anti-pulling tubular piles according to any one of claims 1 to 4, wherein the number of the arc-shaped large and small oblong holes on the precast tubular pile end plate corresponds to the number of the bony connecting pieces, the diameter of the bony connecting piece body, the height of the pier head and the number of the pier head are determined according to the strength requirement of the pile body, and the number of the pier head is not less than 4.
7. The mechanical connector of the end-button type precast concrete anti-pulling tubular pile of claim 1, wherein the diameter of the big end hole of the arc big and small end oblong hole of the lower section precast tubular pile end plate is equal, and the height is less than or equal to the thickness of the precast tubular pile end plate plus the depth of the key groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111662413.2A CN114250770B (en) | 2021-12-31 | 2021-12-31 | Mechanical connecting joint of end-buckling type precast concrete anti-pulling pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111662413.2A CN114250770B (en) | 2021-12-31 | 2021-12-31 | Mechanical connecting joint of end-buckling type precast concrete anti-pulling pipe pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114250770A true CN114250770A (en) | 2022-03-29 |
| CN114250770B CN114250770B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111662413.2A Active CN114250770B (en) | 2021-12-31 | 2021-12-31 | Mechanical connecting joint of end-buckling type precast concrete anti-pulling pipe pile |
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| CN (1) | CN114250770B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161159A (en) * | 2013-03-27 | 2013-06-19 | 周兆弟 | Prestressed concrete pipe pile butt joint construction member and prestressed concrete pipe pile |
| CN105484258A (en) * | 2016-01-07 | 2016-04-13 | 中淳高科桩业股份有限公司 | Foundation treatment pile and pile splicing method thereof |
| CN105887877A (en) * | 2014-12-25 | 2016-08-24 | 宿迁力引实业有限公司 | X-shaped pin connector for prestressed concrete pipe piles |
| CN106948342A (en) * | 2017-04-17 | 2017-07-14 | 中亿丰建设集团股份有限公司 | Pretensioning prestressed concrete resistance to plucking prefabricated pile attachment structure |
| CN111321734A (en) * | 2020-03-23 | 2020-06-23 | 陈正祖 | Double-end mechanical expansion formula coupling assembling |
-
2021
- 2021-12-31 CN CN202111662413.2A patent/CN114250770B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161159A (en) * | 2013-03-27 | 2013-06-19 | 周兆弟 | Prestressed concrete pipe pile butt joint construction member and prestressed concrete pipe pile |
| CN105887877A (en) * | 2014-12-25 | 2016-08-24 | 宿迁力引实业有限公司 | X-shaped pin connector for prestressed concrete pipe piles |
| CN105484258A (en) * | 2016-01-07 | 2016-04-13 | 中淳高科桩业股份有限公司 | Foundation treatment pile and pile splicing method thereof |
| CN106948342A (en) * | 2017-04-17 | 2017-07-14 | 中亿丰建设集团股份有限公司 | Pretensioning prestressed concrete resistance to plucking prefabricated pile attachment structure |
| CN111321734A (en) * | 2020-03-23 | 2020-06-23 | 陈正祖 | Double-end mechanical expansion formula coupling assembling |
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| Publication number | Publication date |
|---|---|
| CN114250770B (en) | 2023-07-21 |
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