CN114250770B - Mechanical connecting joint of end-buckling type precast concrete anti-pulling pipe pile - Google Patents
Mechanical connecting joint of end-buckling type precast concrete anti-pulling pipe pile Download PDFInfo
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- CN114250770B CN114250770B CN202111662413.2A CN202111662413A CN114250770B CN 114250770 B CN114250770 B CN 114250770B CN 202111662413 A CN202111662413 A CN 202111662413A CN 114250770 B CN114250770 B CN 114250770B
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- tubular pile
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 16
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 15
- 230000011164 ossification Effects 0.000 claims 9
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000011900 installation process Methods 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
- 230000002265 prevention Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E02D5/58—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-buckling type precast concrete anti-pulling pipe pile mechanical connection joint which comprises a key slot arranged at the end part of a precast pipe pile, an end plate arranged at the end part of the precast pipe pile, a bone connecting piece for connecting an upper precast pipe pile and a lower precast pipe pile and a sliding block, wherein an arc-shaped big-end slotted hole is formed in the end plate, the bone connecting piece penetrates through a big-end hole in the arc-shaped big-end slotted hole in the end plate of one end of the lower precast pipe pile to enter the key slot of the lower precast pipe pile, the bone connecting piece is moved to the position of the small-end hole in the arc-shaped big-end slotted hole, the big-end hole of the arc-shaped big-end slotted hole of the end plate of the upper precast pipe pile is inserted into the fixed bone connecting piece, and the pile body of the upper precast pipe pile is rotated to realize buckling of the end of the upper precast pipe pile and the lower precast pipe pile. The invention can solve the problem of connection of precast concrete pipe piles, has simple structure, convenient installation and reliable force transmission, can ensure that the upper pile and the lower pile have good joint working performance and ensure the safety of joints.
Description
Technical Field
The invention belongs to the technical field of prefabricated concrete pipe piles of constructional engineering, and particularly relates to a mechanical connecting joint of an end-buckling type prefabricated concrete anti-pulling pipe pile.
Background
The prefabricated concrete pipe pile is formed by a centrifugal method, and redundant water in the concrete is thrown out due to the centrifugal force, so that the concrete is compact, high in strength, strong in capability of resisting groundwater and other corrosion, low in production cost, steel-saving, environment-friendly, reliable in quality, simple in construction, low in technical difficulty and the like, and is widely used in basement anti-floating designs of industrial and civil buildings. In the construction process of the precast concrete anti-pulling pipe pile, the precast pile is generally a multi-section pile, and needs to be driven into or pressed into a soil layer section by section. For the anti-pulling pipe pile, the connection between piles in the construction process is of great importance, and the connection has great influence on the anti-pulling performance of the engineering pile. At present, the connection mode of the pipe piles mainly adopts welding connection and mechanical connection. The welding connection is that the end plates of the upper section pile and the lower section pile are welded together through girth welding, the tensile force of the anti-pulling pile is mainly transmitted through welding seams, and the quality of the welding seams becomes a key point in the pipe pile connection and the pile foundation construction quality. However, due to the fact that the factors affecting the welding quality are more, the quality of the connecting joint is not guaranteed, potential safety hazards exist, and the welding connecting joint is forbidden by the anti-pulling pipe pile specified in the plain text in part of the area. The mechanical connection mode is to connect two sections of piles together through some mechanical connection joints, and the mechanical connection has the advantages of low technical requirements on workers, reliable quality and the like. At present, a plurality of uplift pile mechanical connection modes exist in China, but most of the production processes are complex, the cost is high, and the defects of unreasonable stress and the like exist in part of the mechanical connection modes. The mechanical connection method of the pipe pile can meet the requirements of pulling resistance strength, simple manufacture, convenient construction, low cost and the like, and can embody the value of changing the mechanical connection mode.
Disclosure of Invention
The invention aims to provide a mechanical connection method for a prestressed concrete anti-pulling pipe pile, which can meet the requirements of pulling resistance, simple manufacture, convenient construction, low cost and the like, and improves the overall quality level of pipe pile construction.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides an end knot formula precast concrete anti-floating tubular pile mechanical connection connects, includes the keyway that sets up at precast tubular pile tip, sets up end plate on precast tubular pile tip, is used for connecting the osseous connecting piece of upper and lower two precast tubular piles and is used for fixed osseous connecting piece, open on the end plate has arc type big end slotted hole, the keyway corresponds with arc type big end slotted hole position, osseous connecting piece passes in the big end slotted hole of arc type big end slotted hole on lower section precast tubular pile end plate gets into lower section precast tubular pile keyway, moves osseous connecting piece to the big end slotted hole position of middle and small end slotted hole of arc type big end slotted hole, the osseous connecting piece is put into fixed osseous connecting piece from the big end slotted hole of end plate arc type big end slotted hole, the osseous connecting piece after inserting fixed with the big end slotted hole of the precast tubular pile tip end plate of upper segment, rotates the precast tubular pile body, makes the osseous connecting piece move into the little end slotted hole position of the precast tubular pile of upper segment big end slotted hole, realizes buckling end knot down.
Preferably, the osseous connecting piece comprises a connecting piece body and pier heads arranged at two ends of the connecting piece body, wherein the diameter of the connecting piece body is smaller than that of the pier heads, and the diameter of the pier heads is smaller than that of the large head of the arc-shaped large head oblong hole and larger than that of the small head of the arc-shaped large head oblong hole.
Preferably, the depth of the key groove at the end part of the precast tubular pile is greater than or equal to the height of the pier head of the osseous connecting piece; the width of the key groove at the end part of the precast tubular pile is the same as the aperture of the big end oblong hole on the precast tubular pile end plate; the length of the key slot at the end part of the precast tubular pile is the same as that of the long round hole with the big end and the small end on the precast tubular pile end plate.
Preferably, the diameter of the large end of the arc-shaped large end long round hole of the prefabricated pipe pile end plate is larger than or equal to the diameter of the pier head of the osseous connecting piece; the small-head aperture of the arc-shaped big-and-small-head oblong hole is smaller than the pier head diameter of the osseous connecting piece, so that the osseous connecting piece can be placed into the big-head hole, and after the osseous connecting piece moves to the small-head hole position of the oblong hole, the osseous connecting piece can be clamped.
Preferably, the direction of the size head of the arc-shaped big-end long round hole of the upper section precast tubular pile end plate is opposite to the direction of the size head of the arc-shaped big-end long round hole of the lower precast tubular pile end plate.
Preferably, the number of the arc-shaped big-end and small-end oblong holes on the prefabricated pipe pile end plate corresponds to the number of the osseous connection pieces, and the diameters of the osseous connection pieces, the heights of the pier heads and the number are determined according to the strength requirement of the pile body, and the number is not less than 4.
Preferably, the lower section precast tubular pile end plate sliding block is equal to the diameter of a big end hole of the arc-shaped big end and the long end hole of the lower section precast tubular pile end plate, and the height is smaller than or equal to the thickness of the precast tubular pile end plate plus the depth of the key slot.
The invention can solve the problem of connection of precast concrete piles, 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 joint working performance, and ensures the safety of an integral structure system.
Drawings
Fig. 1 is a schematic view of a key slot at a pile end of an upper-section precast pile.
Fig. 2 is a schematic view of an upper section precast tubular pile end plate according to the present invention.
Fig. 3 is a schematic view of a key slot at a pile end of a lower-section precast pile according to the present invention.
Fig. 4 is a schematic view of a lower segment precast tubular pile end plate of the present invention.
Fig. 5 is a schematic view of a bone connector according to the present invention.
FIG. 6 is a schematic view of a slider according to the present invention.
Fig. 7 is a schematic view of the installation of the lower prefabricated pipe pile and the osseous connection part and the sliding block according to the invention.
Fig. 8 is a schematic view of a lower prefabricated pipe pile and a bone connecting piece according to the present invention.
Fig. 9 is a schematic diagram of a lower prefabricated pipe pile and a bone connecting piece according to the second embodiment of the present invention.
Fig. 10 is a schematic diagram showing the relationship of the components after the connection of the precast tubular piles according to the present invention is completed.
Fig. 11 is a schematic view showing the loose prevention after the completion of the connection of the precast tubular piles of the present invention.
Wherein: 1-upper section precast tubular pile; 2-lower section prefabricating pipe piles; 3-an upper section precast tubular pile end plate; 4-prefabricating a tubular pile end plate at the lower section; 5-bone connectors; 6-upper section precast tubular pile body key slot; 7-a lower section precast tubular pile body key groove; 8-arc-shaped big-end and small-end oblong holes of the upper section precast tubular pile end plates; 81-a big end hole of an arc-shaped big end long hole of the upper section precast tubular pile end plate; 82-small end holes of arc-shaped big end and small end long holes of the upper section precast tubular pile end plates; 9-arc-shaped big-end and small-end oblong holes of the lower precast tubular pile end plates; 91-a big end hole of an arc-shaped big end long hole of the lower section precast tubular pile end plate; 92-small end holes of arc-shaped big end and small end long holes of the lower section precast tubular pile end plates; 51-pier heads; 10-a slide block; 11-welding groove.
Detailed Description
The mechanical connection joint of the end-buckling type precast concrete pipe pile is described in detail below with reference to the accompanying drawings.
Examples
As shown in fig. 1-11, the mechanical connecting joint of the end-buckling type precast concrete pipe pile is used for solving the connecting problem between precast concrete pipe piles, has simple structure, is convenient to install and reliable in force transmission, and can ensure that the upper precast pipe pile 1 and the lower precast pipe pile 2 have good joint working performance. The mechanical connection joint comprises an upper section precast tubular pile body key slot 6 arranged at the end part of an upper section precast tubular pile 1, a lower section precast tubular pile body key slot 7 arranged at the end part of a lower section precast tubular pile 2, an upper section precast tubular pile end plate 3 arranged on the upper section precast tubular pile 1, a lower section precast tubular pile end plate 4 arranged on the lower section precast tubular pile 2, and a bone connecting piece 5 used for connecting the upper section precast tubular pile 1 and the lower section precast tubular pile 2.
Wherein, open on the upper segment precast tubular pile end plate 3 have upper segment precast tubular pile end plate arc big and small head oblong hole 8, open on the lower segment precast tubular pile end plate 4 have lower segment precast tubular pile end plate arc big and small head oblong hole 9. The upper section precast tubular pile body key slot 6 corresponds to the position of the arc-shaped big-end long round hole 8 of the upper section precast tubular pile end plate, and the lower section precast tubular pile body key slot 7 corresponds to the position of the arc-shaped big-end long round hole 9 of the lower section precast tubular pile end plate. The arc-shaped big-end oblong holes 8 of the upper section precast tubular pile end plates are the same as the arc-shaped big-end oblong holes 9 of the lower section precast tubular pile end plates in shape and size, the quantity is equal, and the directions of the big-end oblong holes 8 of the upper section precast tubular pile end plates are opposite to the directions of the big-end oblong holes 9 of the lower section precast tubular pile end plates.
The osseous connecting piece 5 includes connecting piece body and sets up the pier nose 51 at connecting piece body both ends, connecting piece body diameter is less than pier nose 51 diameter, pier nose 51 diameter is less than the big head hole 91 aperture of the big head oblong hole of lower section prefabricated tubular pile end plate arc type big head oblong hole and is greater than the little head hole 92 aperture of lower section prefabricated tubular pile end plate arc type big head oblong hole. The upper section precast tubular pile 1 and the lower section precast tubular pile 2 are connected through the osseous connecting piece 5 and are prevented from loosening by the sliding block 10.
The number of arc-shaped big-end and small-end oblong holes 9 of the lower-section precast tubular pile end plate corresponds to the number of the osseous connecting pieces 5, and the diameters of the osseous connecting pieces, the heights of the pier heads and the number are determined according to the strength requirement of the pile body, and the number is not less than 4.
The lower section precast tubular pile body key groove 7 corresponds to the position of the arc-shaped big-end long round hole 9 of the lower section precast tubular pile end plate, the depth of the lower section precast tubular pile body key groove 7 is greater than or equal to the height of the pier head 51, the width of the lower section precast tubular pile body key groove 7 is the same as the aperture of the big-end hole 91 of the arc-shaped big-end long round hole of the lower section precast tubular pile end plate, and the length of the lower section precast tubular pile body key groove 7 is the same as the length of the arc-shaped big-end long round hole 9 of the lower section precast tubular pile end plate. The upper section precast tubular pile body key slot 6 corresponds to the position of the upper section precast tubular pile end plate arc-shaped big-end long round hole 8, the depth of the upper section precast tubular pile body key slot 6 is greater than or equal to the height of the pier head 51, the width of the upper section precast tubular pile body key slot 6 is the same as the aperture of the big-end hole 81 of the upper section precast tubular pile end plate arc-shaped big-end long round hole, and the length of the upper section precast tubular pile body key slot 6 is the same as the length of the upper section precast tubular pile end plate arc-shaped big-end long round hole 8.
Further, the aperture of the big head hole 91 of the arc-shaped big head oblong hole of the lower-section prefabricated pipe pile end plate is larger than or equal to the diameter of the pier head 51, and the aperture of the small head hole 92 of the arc-shaped big head oblong hole of the lower-section prefabricated pipe pile end plate is smaller than the diameter of the pier head 51, so that the bone connecting piece 5 can be placed into the big head hole 91 of the arc-shaped big head oblong hole of the lower-section prefabricated pipe pile end plate, and after the bone connecting piece 5 moves to the small head hole 92 of the arc-shaped big head oblong hole of the lower-section prefabricated pipe pile end plate, the bone connecting piece 5 can be clamped. The big end hole 81 of the arc-shaped big end oblong hole of the upper section precast tubular pile end plate is the same as the big end hole 91 of the arc-shaped big end oblong hole of the lower section precast tubular pile end plate, and the small end hole 82 of the arc-shaped big end oblong hole of the upper section precast tubular pile end plate is the same as the small end hole 92 of the arc-shaped big end oblong hole of the lower section precast tubular pile end plate.
The sliding block 10 is equal to the diameter of a big head hole 91 of the arc-shaped big head oblong hole of the lower section precast tubular pile end plate, and the height is smaller than or equal to the thickness of the lower section precast tubular pile end plate 4 and the depth of the key slot 7 of the lower section precast tubular pile body.
In this embodiment, after the lower-section precast tubular pile 2 is pressed into place in the soil layer, the osseous connection piece 5 is placed into the key slot 7 of the lower-section precast tubular pile body through the big-end hole 91 of the arc-shaped big-end long-end hole of the end plate of the lower-section precast tubular pile. And moving the osseous connecting piece 5 to the position of a small head hole 92 of the arc-shaped big-end long hole of the end plate of the lower prefabricated pipe pile, putting the slide block 10 into a big head hole 91 of the arc-shaped big-end long hole of the end plate of the lower prefabricated pipe pile, and clamping the movable osseous connecting piece 5. The upper section precast tubular pile 1 is lifted to be in place, the big end hole 81 of the arc-shaped big end oblong hole of the upper section precast tubular pile end plate is aligned with the bone connecting piece 5 which is in place, the pier head 51 of the movable bone connecting piece 5 exposed by the lower section precast tubular pile end plate 4 slowly falls into the big end hole 81 of the arc-shaped big end oblong hole of the upper section precast tubular pile end plate. The upper section precast tubular pile 1 is rotated along the direction of the big end hole 81 of the arc-shaped big end oblong hole of the upper section precast tubular pile end plate and the small end hole 82 of the arc-shaped big end oblong hole of the upper section precast tubular pile end plate, so that the bony connecting piece 5 is positioned at the small end hole 82 of the arc-shaped big end oblong hole of the upper section precast tubular pile end plate, and the pier head 51 clamps the upper section precast tubular pile end plate 3. And finally, intermittently welding the connected upper section of precast tubular pile 1 and the lower section of precast tubular pile 2 along a welding groove 11 at the joint of the tubular pile body to prevent loosening, wherein the welding is only a loosening measure in the pile pressing process.
The invention can solve the problem of connection of precast concrete piles, 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 joint working performance, ensure the safety of an integral structure system and improve the integral quality level of tubular pile construction. Therefore, the invention has good application prospect in practical engineering.
The above examples illustrate only the basic principle of the whole invention, the installation process and other technical solutions, and it should be understood by those skilled in the art that modifications and equivalent substitutions can be made thereto without departing from the spirit and scope of the technical solutions of the present invention. All equivalent changes and approximate substitutions made in accordance with what is described in the claims of the present invention are intended to be covered by the claims of the present invention.
Claims (5)
1. A mechanical connecting joint of an end-buckling precast concrete anti-pulling pipe pile is characterized in that: including setting up the keyway on precast tubular pile tip, setting up end plate on precast tubular pile tip, be used for connecting the ossification connecting piece of upper and lower two precast tubular piles and be used for fixed ossification connecting piece, it has the long round hole of arcuation big and small head to open on the end plate, the keyway corresponds with the long round hole position of arcuation big and small head, the ossification connecting piece passes in the long round hole of arcuation big and small head on precast tubular pile tip end plate get into lower precast tubular pile keyway, and the ossification connecting piece is put into fixed ossification connecting piece to the long round hole position of arcuation big and small head in the long round hole, the ossification connecting piece is put into the ossification connecting piece after inserting fixed with the big round hole of arcuation big and small head of upper precast tubular pile tip end plate, makes the ossification connecting piece move into the big round hole position of arcuation big and small head long round hole of upper and small precast tubular pile tip, realize that the prefabricated tubular pile tip end down is detained, ossification connecting piece includes the connecting piece and sets up the big round hole position of the big and small head hole diameter of arcuation tubular pile tip end plate, the diameter of pile tip end diameter is greater than the big and small end diameter of the long round hole of arcuation head end of precast tubular pile tip end.
2. The mechanical connection joint of the end-buckling type precast concrete uplift pile, according to claim 1, wherein the depth of a key groove at the end part of the precast tubular pile is greater than or equal to the height of a pier head of the osseous connection piece; the width of the key groove at the end part of the precast tubular pile is the same as the aperture of the big end oblong hole on the precast tubular pile end plate; the length of the key slot at the end part of the precast tubular pile is the same as that of the long round hole with the big end and the small end on the precast tubular pile end plate.
3. The mechanical connection joint of the end-buckling type precast concrete pipe pile according to claim 1, wherein the large-head aperture of the arc-shaped large-head oblong hole of the precast pipe pile end plate is larger than or equal to the pier head diameter of the osseous connection piece; the small-head aperture of the arc-shaped big-and-small-head oblong hole is smaller than the pier head diameter of the osseous connecting piece, so that the osseous connecting piece can be placed into the big-head hole, and after the osseous connecting piece moves to the small-head hole position of the oblong hole, the osseous connecting piece can be clamped.
4. The mechanical connection joint of the end-buckling type precast concrete pipe pile according to any one of claims 1 to 3, wherein the number of arc-shaped big-end-head oblong holes on the precast pipe pile end plate corresponds to the number of the bone connection pieces, and the diameters of the bone connection pieces, the heights of the pier heads and the number are determined according to the strength requirement of the pile body, and the number is not less than 4.
5. The mechanical connection joint of the end-buckling type precast concrete anti-pulling pipe pile according to claim 1, wherein the sliding block is equal to the diameter of a big end hole of an arc-shaped big end oblong hole of the end plate of the lower precast pipe pile, and the height is smaller than or equal to the thickness of the end plate of the precast pipe pile plus the depth of a key slot.
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 CN114250770A (en) | 2022-03-29 |
| CN114250770B true CN114250770B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161159B (en) * | 2013-03-27 | 2015-05-27 | 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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2021
- 2021-12-31 CN CN202111662413.2A patent/CN114250770B/en active Active
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| CN114250770A (en) | 2022-03-29 |
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