CN111236213A - Precast concrete tubular pile structure - Google Patents
Precast concrete tubular pile structure Download PDFInfo
- Publication number
- CN111236213A CN111236213A CN202010061034.7A CN202010061034A CN111236213A CN 111236213 A CN111236213 A CN 111236213A CN 202010061034 A CN202010061034 A CN 202010061034A CN 111236213 A CN111236213 A CN 111236213A
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- China
- Prior art keywords
- steel pipe
- precast
- precast pile
- pile section
- section
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 97
- 239000010959 steel Substances 0.000 claims abstract description 97
- 239000004567 concrete Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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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
- E02D5/52—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
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- 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)
- Piles And Underground Anchors (AREA)
Abstract
A precast concrete tubular pile structure comprises a plurality of precast pile sections, wherein a first steel pipe is buried at the upper end of each precast pile section, the upper part of the first steel pipe extends upwards from the inside of the precast pile section and protrudes out of the upper end of the precast pile section to form a protruding part, a second steel pipe is buried at the lower end of the precast pile section, the protruding part of the first steel pipe is provided with external threads, the second steel pipe is provided with internal threads matched with the external threads of the protruding part of the first steel pipe, the protruding part of the first steel pipe buried at the upper end of the current precast pile section is in threaded connection with the second steel pipe at the lower end of the next precast pile section, the second steel pipe buried at the lower end of the current precast pile section is in threaded connection with the protruding part of the first steel pipe at the upper end of the previous precast pile section to realize the connection of the pile sections, the first steel pipe is buried in the precast pile sections, and first shear-resistant short ribs are arranged around, and second shear-resistant short ribs are arranged around the outer pipe wall of the second steel pipe, so that the connection between the steel pipe and the pile body is enhanced.
Description
Technical Field
The invention relates to the field of underground engineering, in particular to a precast concrete tubular pile structure.
Background
The piles are common structural members for underground engineering and can be divided into fender piles and engineering piles according to the application, the fender piles are mainly used as bending-resistant members, and the engineering piles are mostly used for resisting pulling or compression. The cast-in-place pile can be used as a bending-resistant member and a pulling-resistant and pressure-resistant member due to good integrity, and is a common construction method for underground engineering. The precast tubular pile is precast in a factory, the pile body quality is good, the construction speed is high, but the joint is weak, the bending resistance of the joint is poor, and the precast tubular pile is a main factor for restricting the use of the precast tubular pile in underground engineering.
Disclosure of Invention
In view of the technical defects and technical drawbacks in the prior art, embodiments of the present invention provide a precast concrete tubular pile structure that overcomes or at least partially solves the above problems, and can effectively ensure the reliability of joints, so that the pile can provide good bending, pulling and compression resistance, and meanwhile, the present invention has the advantages of fast construction speed, good quality, and material and cost saving, and the concrete scheme of the present invention is as follows:
the utility model provides a precast concrete tubular pile structure, includes a plurality of precast pile sections, every precast pile section upper end has buried first steel pipe underground, the upper portion of first steel pipe upwards extends and outstanding from inside the precast pile section in precast pile section upper end forms the protruding portion, the second steel pipe has been buried underground to the lower extreme of precast pile section, the protruding portion of first steel pipe has the external screw thread, the second steel pipe has the internal thread with the external screw thread looks adaptation of first steel pipe protruding portion, the protruding portion of the first steel pipe that current precast pile section upper end was buried underground and the second steel pipe threaded connection of next section precast pile section lower extreme, the second steel pipe that current precast pile section lower extreme was buried underground and the protruding portion threaded connection of the first steel pipe of last section precast pile section upper end.
Further, the precast pile section is cylindrical.
Further, the inner diameter of the protruding portion of the first steel pipe is smaller than or equal to the inner diameter of the precast pile section, and the outer diameter of the protruding portion of the first steel pipe is matched with the inner diameter of the second steel pipe.
Furthermore, steel rings are embedded at the top end and the bottom end of each prefabricated pile section, the steel ring embedded at the top end of the current prefabricated pile section is welded with the steel ring embedded at the bottom end of the next prefabricated pile section, and the steel ring embedded at the bottom end of the current prefabricated pile section is welded with the steel ring embedded at the top end of the previous prefabricated pile section.
Furthermore, the transition positions of the top surface and the bottom surface of the precast pile section and the outer wall are provided with oblique angles.
Further, the gap at the joint of two adjacent precast pile sections is filled with fine aggregate concrete.
Furthermore, the first steel pipe is embedded in the part inside the precast pile section, and first shear-resistant short ribs are arranged on the periphery of the outer pipe wall of the first steel pipe.
Furthermore, second shear resistant short ribs are arranged on the periphery of the outer pipe wall of the second steel pipe.
Furthermore, the surfaces of the first steel pipe and the second steel pipe are coated with anticorrosive materials.
The invention has the following beneficial effects:
1. according to the invention, a first steel pipe is pre-embedded at the upper end of a prefabricated pile section, wherein one half of the first steel pipe is pre-embedded in a pile body, anti-sliding short ribs are arranged on the periphery of the part of the steel pipe and used for enhancing the connection between the steel pipe and the pile body, the other half of the steel pipe protrudes out of the upper part of the pile section, the surface of the first steel pipe is provided with external threads, a second steel pipe is pre-embedded at the lower end of the prefabricated pile section, and the second steel pipe is provided with internal threads matched with the external threads of the protruding part of the;
2. the upper end part and the lower end part of the pile body are pre-embedded with steel rings, so that the pile joints can be welded after pile splicing is finished, and the connection performance of the interfaces is further enhanced; the upper end and the lower end of the pile body are provided with oblique angles, and fine stone concrete can be filled after seam welding, so that the surface of the pile body is smooth; in addition, the surfaces of the steel pipe 1 and the steel pipe 2 are coated with anticorrosive materials to ensure the service life of the project.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts
Fig. 1 is a structural diagram of a precast pile section according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a prefabricated pile section provided by the embodiment of the invention after connection;
FIG. 3 is a cross-sectional view taken along line A-A of the present invention;
FIG. 4 is a cross-sectional view taken along line B-B in accordance with an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line C-C in accordance with an embodiment of the present invention;
FIG. 6 is a cross-sectional view taken along line D-D in accordance with an embodiment of the present invention;
description of reference numerals: 1. precast pile section, 2, first steel pipe, 3, second steel pipe, 4, first shear short muscle, 5, second shear short muscle, 6, steel ring, 7, pea gravel concrete, 21, external screw thread, 31, internal screw thread.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 6, the precast concrete tubular pile structure according to an embodiment of the present invention includes a plurality of precast pile sections 1, a first steel pipe 2 is embedded at an upper end of each precast pile section 1, an upper portion of the first steel pipe 2 extends upward from an inside of the precast pile section 1 and protrudes above the precast pile section 1 to form a protruding portion, a second steel pipe 3 is embedded at a lower end of the precast pile section 1, the protruding portion of the first steel pipe 2 has an external thread 21, the second steel pipe 3 has an internal thread 31 adapted to the external thread 21 of the protruding portion of the first steel pipe 2, the protruding portion of the first steel pipe 2 embedded at the upper end of the current precast pile section is in threaded connection with the second steel pipe 3 at the lower end of the next precast pile section, and the second steel pipe 3 embedded at the lower end of the current precast pile section is in threaded connection with the protruding portion at the upper end of the first steel pipe 2 of the previous precast pile section.
The prefabricated pile section 1 is cylindrical, the inner diameter of the protruding portion of the first steel pipe 2 is equal to or slightly smaller than the inner diameter of the prefabricated pile section 1, and the outer diameter of the protruding portion of the first steel pipe 2 is matched with the inner diameter of the second steel pipe 3.
Preferably, the top and the bottom of the precast pile section 1 are embedded with steel rings 6, the steel ring 6 embedded at the top of the current precast pile section is welded with the steel ring 6 embedded at the bottom of the next precast pile section, the steel ring 6 embedded at the bottom of the current precast pile section is welded with the steel ring 6 embedded at the top of the previous precast pile section, and by arranging the steel rings 6, the welding can be carried out at the pile section joint after the pile splicing is completed, so that the interface connection performance is further enhanced.
Preferably, the gap at the joint of two adjacent precast pile sections 1 is filled with fine aggregate concrete 7, and the transition positions of the top surface and the bottom surface of each precast pile section 1 and the outer wall are provided with oblique angles, so that the fine aggregate concrete 7 can be conveniently poured into the joint after pile extension is completed.
Preferably, the first steel pipe 2 is embedded in the precast pile section 1, first shear-resistant short ribs 4 are arranged on the periphery of the outer pipe wall of the first steel pipe 2, and second shear-resistant short ribs 5 are arranged on the periphery of the outer pipe wall of the second steel pipe 3, so that the connection between the steel pipe and the pile body is enhanced.
Preferably, the surfaces of the first steel pipe 2 and the second steel pipe 3 are coated with anticorrosive materials, so that the service life of the project is ensured.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a precast concrete tubular pile structure, includes a plurality of precast pile sections, its characterized in that, every precast pile section upper end has buried first steel pipe underground, the upper portion of first steel pipe upwards extends and outstanding in precast pile section upper end from precast pile section inside, forms the protruding portion, the lower extreme of precast pile section has buried the second steel pipe underground, the protruding portion of first steel pipe has the external screw thread, the second steel pipe has the internal thread with the external screw thread looks adaptation of first steel pipe protruding portion, the protruding portion of the first steel pipe that current precast pile section upper end was buried underground and the second steel pipe threaded connection of next section precast pile section lower extreme, the second steel pipe that current precast pile section lower extreme was buried underground and the protruding portion threaded connection of the first steel pipe of last section precast pile section upper end.
2. A precast concrete tubular pile structure according to claim 1, characterized in that the precast pile segments are cylindrical.
3. The precast concrete tubular pile structure of claim 1, wherein an inner diameter of the protruding portion of the first steel pipe is less than or equal to an inner diameter of the precast pile section, and an outer diameter of the protruding portion of the first steel pipe is adapted to the inner diameter of the second steel pipe.
4. The precast concrete tubular pile structure according to claim 1, wherein steel rings are embedded at the top and bottom ends of the precast pile sections, the steel ring embedded at the top end of the current precast pile section is welded to the steel ring embedded at the bottom end of the next precast pile section, and the steel ring embedded at the bottom end of the current precast pile section is welded to the steel ring embedded at the top end of the previous precast pile section.
5. A precast concrete tubular pile structure according to claim 1, characterized in that the top surface and the transition of the bottom surface and the outer wall of the precast pile section are beveled.
6. A precast concrete tubular pile structure according to claim 1, wherein a gap at the junction of two adjacent precast pile sections is filled with fine aggregate concrete.
7. The precast concrete tubular pile structure of claim 1, wherein the first steel pipe is embedded in the precast pile section, and first shear-resistant short bars are provided around the outer wall thereof.
8. The precast concrete tubular pile structure of claim 1, wherein a second shear reinforcement is provided around an outer tube wall of the second steel tube.
9. The precast concrete tubular pile structure according to claim 1, wherein surfaces of the first steel pipe and the second steel pipe are coated with an anticorrosive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010061034.7A CN111236213A (en) | 2020-01-19 | 2020-01-19 | Precast concrete tubular pile structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010061034.7A CN111236213A (en) | 2020-01-19 | 2020-01-19 | Precast concrete tubular pile structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111236213A true CN111236213A (en) | 2020-06-05 |
Family
ID=70874717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010061034.7A Pending CN111236213A (en) | 2020-01-19 | 2020-01-19 | Precast concrete tubular pile structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111236213A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585240A (en) * | 2021-09-03 | 2021-11-02 | 辽宁科技大学 | Concrete filled steel tube pile integrated structure and construction method |
| CN114293547A (en) * | 2021-12-21 | 2022-04-08 | 浙大宁波理工学院 | Anti-pulling type tubular pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000034724A (en) * | 1998-07-17 | 2000-02-02 | Geotop Corp | Joint of knot pile and steel pipe pile |
| JP2002256549A (en) * | 2001-03-01 | 2002-09-11 | Kawasaki Steel Corp | Connecting structure of steel pipe and steel pipe pile |
| CN205475215U (en) * | 2016-03-04 | 2016-08-17 | 周艳旭 | Concrete pipe pile |
| CN206768804U (en) * | 2017-05-25 | 2017-12-19 | 建华建材（江苏）有限公司 | Precast concrete pile attachment structure |
| CN211948379U (en) * | 2020-01-19 | 2020-11-17 | 中铁第四勘察设计院集团有限公司 | Precast concrete tubular pile structure |
-
2020
- 2020-01-19 CN CN202010061034.7A patent/CN111236213A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000034724A (en) * | 1998-07-17 | 2000-02-02 | Geotop Corp | Joint of knot pile and steel pipe pile |
| JP2002256549A (en) * | 2001-03-01 | 2002-09-11 | Kawasaki Steel Corp | Connecting structure of steel pipe and steel pipe pile |
| CN205475215U (en) * | 2016-03-04 | 2016-08-17 | 周艳旭 | Concrete pipe pile |
| CN206768804U (en) * | 2017-05-25 | 2017-12-19 | 建华建材（江苏）有限公司 | Precast concrete pile attachment structure |
| CN211948379U (en) * | 2020-01-19 | 2020-11-17 | 中铁第四勘察设计院集团有限公司 | Precast concrete tubular pile structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585240A (en) * | 2021-09-03 | 2021-11-02 | 辽宁科技大学 | Concrete filled steel tube pile integrated structure and construction method |
| CN114293547A (en) * | 2021-12-21 | 2022-04-08 | 浙大宁波理工学院 | Anti-pulling type tubular pile |
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