CN114411704B - Assembled precast concrete square pile - Google Patents
Assembled precast concrete square pile Download PDFInfo
- Publication number
- CN114411704B CN114411704B CN202210185914.4A CN202210185914A CN114411704B CN 114411704 B CN114411704 B CN 114411704B CN 202210185914 A CN202210185914 A CN 202210185914A CN 114411704 B CN114411704 B CN 114411704B
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- groove
- block
- square pile
- cylindrical
- pile body
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 45
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 8
- 239000004567 concrete Substances 0.000 description 18
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 125000001309 chloro group Chemical class Cl* 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an assembled precast concrete square pile which comprises a square pile body, wherein the lower end of the square pile body is provided with a splicing component, and the upper end of the square pile body is provided with a groove component corresponding to the splicing component; the splicing assembly comprises a cylindrical inserting block positioned at the lower end of the square pile body, the bottom surface of the cylindrical inserting block is an arc convex surface, and two limit pieces which are symmetrically distributed are further arranged on the side wall of the cylindrical inserting block; the groove component comprises a cylindrical groove corresponding to the cylindrical plug block, a guide groove corresponding to the limiting piece is arranged on the side wall of the cylindrical groove, and a limiting groove corresponding to the limiting piece is respectively arranged between the bottoms of the two guide grooves; the bottom surface of the cylindrical groove is provided with a centering arc concave surface matched with the arc convex surface; and a sealing block is inserted into the guide groove. The invention has the characteristics of convenient installation and capability of effectively improving the connection strength of the connection part of two square piles.
Description
Technical Field
The invention relates to a concrete pile, in particular to an assembled precast concrete square pile.
Background
Along with the acceleration of the urban process in China, the development and utilization of underground space are rapidly developed, the buildings with the pulling-resistant requirements are increased and the depth is deeper, so that the concrete piles are an indispensable important part of the foundation of the building, not only bear the upper building, but also need to ensure the stability of the upper building. Because the quality and stability of the immersed tube cast-in-place pile are relatively poor, and the precast concrete pile has the advantages of strong loading capacity, small sedimentation deformation, high efficiency and the like, and is used by more and more construction enterprises, the precast concrete square pile is one of pile types. Because different buildings are different in construction height, the required pile foundation depth is also different, in order to better meet the actual use, the conventional concrete square piles are generally produced in a standardized manner, and concrete square piles of different lengths are produced, so that piles of different lengths can be selected according to different requirements in the subsequent piling process, and each concrete square pile is spliced to form a pile body of a longer length in the piling process, so that the use of each construction site is met. The splicing of the existing concrete square piles is generally to connect two adjacent concrete square piles into a whole by adopting a welding mode, namely, steel plates are arranged at two ends of each concrete square pile, and the square piles are connected by welding the steel plates; when the mode is adopted for connection, firstly, two square piles are required to be centered, the perpendicularity of the square piles is ensured to be within a set range, and the pile heads of the lower section piles are required to be provided with guide hoops to ensure the joint flat welding of the upper section piles and the lower section piles, and two welders are required to symmetrically weld the two sides of the piles during welding, so that the whole installation process is more troublesome, time-consuming and labor-consuming; meanwhile, as the connected pile body is pressed into the ground when the pile is pressed, the soil contains salt, especially chlorine salt, which can corrode the steel plate exposed in the soil, so that the connection part between the piles is broken, and the connection pile is broken. Therefore, the prior art has the problems of inconvenient installation and easy disconnection of the joint of the two square piles.
Disclosure of Invention
The invention aims to provide an assembled precast concrete square pile. The invention has the characteristics of convenient installation and capability of effectively improving the connection strength of the connection part of two square piles.
The technical scheme of the invention is as follows: the spliced precast concrete square pile comprises a square pile body, wherein the lower end of the square pile body is provided with an inserting assembly, and the upper end of the square pile body is provided with a groove assembly corresponding to the inserting assembly; the splicing assembly comprises a cylindrical inserting block positioned at the lower end of the square pile body, the bottom surface of the cylindrical inserting block is an arc convex surface, and two limit pieces which are symmetrically distributed are further arranged on the side wall of the cylindrical inserting block; the groove component comprises a cylindrical groove corresponding to the cylindrical plug block, a guide groove corresponding to the limiting piece is arranged on the side wall of the cylindrical groove, and a limiting groove corresponding to the limiting piece is respectively arranged between the bottoms of the two guide grooves; the bottom surface of the cylindrical groove is provided with a centering arc concave surface matched with the arc convex surface; and a sealing block is inserted into the guide groove.
In the spliced precast concrete square pile, the side surfaces of the top and the bottom of the square pile body are respectively provided with an upper cone and a lower cone which are matched with each other, a group of connecting holes which are distributed in an annular mode are respectively arranged on the upper cone and the lower cone, and bolts for fixing the upper cone and the lower cone are arranged in the connecting holes.
In the spliced precast concrete square pile, one or more circles of annular sealing grooves distributed in concentric circles are formed in the upper surface of the upper cone, and sealing rings corresponding to the annular sealing grooves are arranged on the lower surface of the lower cone.
In the spliced precast concrete square pile, the positioning magnet is embedded in the bottom surface of the guide groove, and the fixed iron block corresponding to the positioning magnet is arranged at the bottom of the sealing block.
In the assembled precast concrete square pile, the pre-attracting magnetic blocks embedded on the side walls of the cylindrical inserting blocks are further arranged above the limiting pieces, and the inner walls of the sealing blocks are embedded with the pre-determined iron blocks corresponding to the pre-attracting magnetic blocks.
In the spliced precast concrete square pile, a clamping block is arranged on the inner side of the top end of the sealing block, and an annular clamping groove is formed in the top end of the cylindrical inserting block; the square pile body bottom surface still is equipped with sealing block and fixture block matched with annular reservation groove, and annular draw-in groove is located annular reservation groove's below.
In the spliced precast concrete square pile, a group of uniformly distributed compression springs are arranged on the upper surfaces of the limiting pieces, a pressing piece is arranged above the compression springs, and inclined guide pieces are hinged at two ends of the pressing piece.
Compared with the prior art, the pile splicing operation of the upper and lower adjacent concrete square piles can be realized after rotation by arranging the groove assemblies and the plug-in assemblies at the upper and lower ends of the square pile body respectively and mutually matching the plug-in assemblies and the groove assemblies on the upper and lower adjacent concrete square piles, and the connection strength of the connection part can be effectively improved. Specifically, the splicing assembly comprises the cylindrical inserting block, the limiting piece arranged on the side wall of the cylindrical inserting block and the arc-shaped convex surface at the bottom, and is matched with the cylindrical groove, the guide groove, the limiting groove, the centering arc-shaped concave surface and the sealing block, so that the omnibearing limiting can be realized, the self-locking can be realized without other fixing measures, the quick positioning of the spliced square pile can be realized through the mutual matching between the guide groove and the limiting piece and between the arc-shaped convex surface and the centering arc-shaped concave surface, the coaxial state between two square piles can be quickly realized, the centering and positioning of the square piles are greatly facilitated, the bottom contact area can be increased, the stability is improved, the quick limiting (up-down limiting) between the two square piles is realized through the mutual clamping between the limiting groove and the limiting piece, the rotation (the limiting in the circumferential direction) of the upper square pile can be prevented through the mutual matching between the sealing block and the guide groove, and the connection stability can be ensured, and the connection strength can be greatly improved. The whole installation process is convenient and simple, time-saving and labor-saving, so that the installation efficiency can be effectively improved. In addition, the upper cone and the lower cone are arranged at the upper end and the lower end of the side wall of the square pile body and are fixed through bolts, so that double connection is realized, and the firmness of the connection position is further improved. In conclusion, the invention has the characteristics of convenient installation and capability of effectively improving the connection strength of the connection part of two square piles.
In addition, the positioning magnet blocks are arranged on the bottom surface of the guide groove, and the fixed iron blocks are arranged at the bottom of the sealing block, so that the sealing block can be adsorbed in the guide groove, and the strength of the joint of two square piles is further improved through the mutual matching between the clamping blocks at the top ends of the sealing block and the annular clamping grooves at the top ends of the cylindrical inserting blocks. Meanwhile, the pre-attracting magnetic blocks are arranged on the side walls of the cylindrical inserting blocks, and the preset iron blocks are arranged on the inner walls of the sealing blocks, so that the sealing blocks can be pre-attracted on the side walls of the cylindrical inserting blocks when assembled, subsequent installation is facilitated, and installation is greatly facilitated.
According to the invention, the compression spring, the pressing sheet and the guide sheet are arranged on the upper surface of the limiting sheet, so that the limiting sheet can be tightly attached to the lower surface of the limiting groove, and the stability of the connecting position is realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a top view of the spacing block and the cylindrical insert block;
fig. 4 is a view showing the installation of the sealing block in another square pile in the initial state of assembly.
The marks in the drawings are: the pile comprises a 1-square pile body, a 2-plug-in assembly, a 3-groove assembly, a 4-sealing block, a 5-upper cone, a 6-lower cone, a 7-annular sealing groove, an 8-sealing ring, a 9-positioning magnet-absorbing block, a 10-fixing iron block, an 11-pre-magnet-absorbing block, a 12-pre-fixing iron block, a 13-clamping block, a 14-annular reserved groove, a 201-cylindrical plug-in block, a 202-arc convex surface, a 203-limiting piece, a 204-annular clamping groove, a 205-compression spring, a 206-compression piece, a 207-guiding piece, a 301-cylindrical groove, a 302-guiding groove, a 303-limiting groove and a 304-centering arc concave surface.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not intended to be limiting.
Examples. The spliced precast concrete square pile is shown in fig. 1 to 4, and comprises a square pile body 1, wherein the lower end of the square pile body 1 is provided with a plug-in component 2, and the upper end of the square pile body 1 is provided with a groove component 3 corresponding to the plug-in component 2; the plug-in assembly 2 comprises a cylindrical plug-in block 201 positioned at the lower end of the square pile body 1, the bottom surface of the cylindrical plug-in block 201 is an arc convex surface 202, and two limit pieces 203 which are symmetrically distributed are arranged on the side wall of the cylindrical plug-in block 201; the groove assembly 3 comprises a cylindrical groove 301 corresponding to the cylindrical plug 201, a guide groove 302 corresponding to the limiting piece 203 is arranged on the side wall of the cylindrical groove 301, and a limiting groove 303 corresponding to the limiting piece 203 is respectively arranged between the bottoms of the two guide grooves 302; the bottom surface of the cylindrical groove 301 is provided with a centering arc concave surface 304 matched with the arc convex surface 202; a sealing block 4 is inserted into the guide groove 302.
The side surfaces of the top and the bottom of the square pile body 1 are respectively provided with an upper cone 5 and a lower cone 6 which are matched with each other, a group of connecting holes which are distributed in a ring shape are respectively arranged on the upper cone 5 and the lower cone 6, and bolts for fixing the upper cone 5 and the lower cone 6 are arranged in the connecting holes.
The upper surface of the upper cone 5 is provided with one or more circles of annular sealing grooves 7 which are distributed in concentric circles, and the lower surface of the lower cone 6 is provided with a sealing ring 8 corresponding to the annular sealing grooves 7.
The bottom surface of the guide groove 302 is embedded with a positioning magnet 9, and the bottom of the sealing block 4 is provided with a fixed iron block 10 corresponding to the positioning magnet 9.
The upper part of the limiting piece 203 is also provided with a pre-attracting magnet 11 embedded on the side wall of the cylindrical inserting block 201, and the inner wall of the sealing block 4 is embedded with a pre-determined iron block 12 corresponding to the pre-attracting magnet 11.
The inner side of the top end of the sealing block 4 is provided with a clamping block 13, and the top end of the cylindrical inserting block 201 is provided with an annular clamping groove 204; the bottom surface of the square pile body 1 is also provided with an annular reserved groove 14 matched with the sealing block 4 and the clamping block 13, and the annular clamping groove 204 is positioned below the annular reserved groove 14.
The upper surface of the limiting plate 203 is provided with a group of uniformly distributed compression springs 205, a pressing plate 206 is arranged above the compression springs 205, and two ends of the pressing plate 206 are provided with inclined guide plates 207 in a hinged manner.
The spacing piece is annular structure, and the contained angle of spacing piece is 90 degrees.
And vertical positioning grooves are further formed in the two side walls of the guide groove, and vertical positioning strips corresponding to the positioning grooves are arranged on the two side walls of the sealing block.
The working process of the invention comprises the following steps: in the initial state, the sealing blocks are placed in the guide grooves, when the upper concrete square pile and the lower concrete square pile are needed to be spliced, the sealing blocks located in the lower concrete square pile are needed to be taken out firstly, then the sealing blocks are placed on the side walls of the cylindrical inserting blocks on the upper concrete square pile, the sealing blocks are adsorbed at corresponding positions (as shown in fig. 4) through the mutual matching between the pre-attracting magnetic blocks and the pre-determined iron blocks, then the upper concrete is hoisted, the cylindrical inserting blocks at the bottom of the upper concrete are enabled to correspond to the cylindrical grooves at the top of the lower concrete, the positions are adjusted, the limiting pieces are enabled to be clamped into the guide grooves, under the action of gravity, the limiting pieces and the sealing blocks are lowered in the guide grooves until the limiting pieces are contacted with the bottom surfaces of the guide grooves, the arc-shaped convex surfaces are also in contact with the centering arc-shaped concave surfaces, then the upper concrete square pile is slowly rotated, when the limiting pieces are completely rotated into the limiting grooves (the embodiment is set to rotate 90 degrees), the supporting of the limiting pieces is lost, the fixing iron blocks at the bottom of the sealing blocks are continued to be lowered until the fixing iron blocks at the bottom of the limiting pieces are opposite to the positioning attracting magnetic blocks, and the clamping ends of the limiting pieces are clamped with the positioning magnetic blocks, and the clamping ends are clamped with the annular clamping blocks, and the clamping ends of the limiting blocks are clamped to be further stable. After the steps are finished, self-locking is finished between the upper square pile and the lower square pile, and then the upper cone and the lower cone are connected and fixed through bolts, so that the stability of connection is further improved. Simultaneously, through the cooperation of seal groove and sealing washer, effectively improve sealing performance, prevent that the inside of concatenation department from taking place the corrosion phenomenon.
Moreover, the invention can change the contact area of the square pile in soil by arranging the upper cone and the lower cone, thereby effectively improving the pulling resistance.
Claims (1)
1. An assembled precast concrete square pile which is characterized in that: the pile comprises a square pile body (1), wherein the lower end of the square pile body (1) is provided with a plug-in component (2), and the upper end of the square pile body (1) is provided with a groove component (3) corresponding to the plug-in component (2); the splicing assembly (2) comprises a cylindrical inserting block (201) positioned at the lower end of the square pile body (1), the bottom surface of the cylindrical inserting block (201) is an arc-shaped convex surface (202), and two limit pieces (203) which are symmetrically distributed are further arranged on the side wall of the cylindrical inserting block (201); the groove component (3) comprises a cylindrical groove (301) corresponding to the cylindrical insertion block (201), guide grooves (302) corresponding to the limiting sheets (203) are arranged on the side walls of the cylindrical groove (301), and limiting grooves (303) corresponding to the limiting sheets (203) are respectively arranged between the bottoms of the two guide grooves (302); the bottom surface of the cylindrical groove (301) is provided with a centering arc-shaped concave surface (304) matched with the arc-shaped convex surface (202); a sealing block (4) is inserted into the guide groove (302); the side surfaces of the top and the bottom of the square pile body (1) are respectively provided with an upper cone (5) and a lower cone (6) which are matched with each other, a group of annularly distributed connecting holes are respectively arranged on the upper cone (5) and the lower cone (6), and bolts for fixing the upper cone (5) and the lower cone (6) are arranged in the connecting holes; the upper surface of the upper cone (5) is provided with one or more circles of annular sealing grooves (7) which are distributed in concentric circles, and the lower surface of the lower cone (6) is provided with a sealing ring (8) corresponding to the annular sealing grooves (7); the bottom surface of the guide groove (302) is embedded with a positioning magnet (9), and the bottom of the sealing block (4) is provided with a fixed iron block (10) corresponding to the positioning magnet (9); the upper part of the limiting piece (203) is also provided with a pre-attracting magnet (11) embedded on the side wall of the cylindrical inserting block (201), and the inner wall of the sealing block (4) is embedded with a preset iron block (12) corresponding to the pre-attracting magnet (11); a clamping block (13) is arranged on the inner side of the top end of the sealing block (4), and an annular clamping groove (204) is formed in the top end of the cylindrical inserting block (201); the bottom surface of the square pile body (1) is also provided with an annular reserved groove (14) matched with the sealing block (4) and the clamping block (13), and the annular clamping groove (204) is positioned below the annular reserved groove (14); the upper surface of the limiting piece (203) is provided with a group of uniformly distributed compression springs (205), a pressing piece (206) is arranged above the compression springs (205), and two ends of the pressing piece (206) are provided with inclined guide pieces (207) in a hinged mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210185914.4A CN114411704B (en) | 2022-02-28 | 2022-02-28 | Assembled precast concrete square pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210185914.4A CN114411704B (en) | 2022-02-28 | 2022-02-28 | Assembled precast concrete square pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114411704A CN114411704A (en) | 2022-04-29 |
| CN114411704B true CN114411704B (en) | 2023-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210185914.4A Active CN114411704B (en) | 2022-02-28 | 2022-02-28 | Assembled precast concrete square pile |
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| Country | Link |
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| CN (1) | CN114411704B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10266198A (en) * | 1997-03-21 | 1998-10-06 | Kodama Concrete Kogyo Kk | Steel-framed under-reamed pile by precast pile and constructing method thereof |
| CN104878758A (en) * | 2015-06-09 | 2015-09-02 | 周兆弟 | Insertion connecting component with tension connection function |
| CN105002886A (en) * | 2015-06-09 | 2015-10-28 | 周兆弟 | Strong pull fastening structure |
| CN205662922U (en) * | 2016-03-30 | 2016-10-26 | 威海齐德新型建材有限公司 | Precast pile connector |
| CN209703484U (en) * | 2019-01-09 | 2019-11-29 | 袁雪峰 | A kind of mechanical splice and precast concrete pile |
| CN210086233U (en) * | 2019-04-09 | 2020-02-18 | 连云港晟宇新型建材有限公司 | Concrete pipe pile butt-joint structure |
| CN211773597U (en) * | 2019-10-25 | 2020-10-27 | 周兆弟 | Self-locking pile splicing mechanism and precast pile |
| CN214460353U (en) * | 2020-10-29 | 2021-10-22 | 周兆弟 | Splicing retaining structure for building and precast pile combination |
| CN113618875A (en) * | 2021-09-14 | 2021-11-09 | 连云港市连大管桩工程有限公司 | Precast concrete square pile with reinforced connecting structure and production method thereof |
| CN217128199U (en) * | 2022-02-28 | 2022-08-05 | 浙江大学建筑设计研究院有限公司 | Assembled precast concrete square pile |
-
2022
- 2022-02-28 CN CN202210185914.4A patent/CN114411704B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10266198A (en) * | 1997-03-21 | 1998-10-06 | Kodama Concrete Kogyo Kk | Steel-framed under-reamed pile by precast pile and constructing method thereof |
| CN104878758A (en) * | 2015-06-09 | 2015-09-02 | 周兆弟 | Insertion connecting component with tension connection function |
| CN105002886A (en) * | 2015-06-09 | 2015-10-28 | 周兆弟 | Strong pull fastening structure |
| CN205662922U (en) * | 2016-03-30 | 2016-10-26 | 威海齐德新型建材有限公司 | Precast pile connector |
| CN209703484U (en) * | 2019-01-09 | 2019-11-29 | 袁雪峰 | A kind of mechanical splice and precast concrete pile |
| CN210086233U (en) * | 2019-04-09 | 2020-02-18 | 连云港晟宇新型建材有限公司 | Concrete pipe pile butt-joint structure |
| CN211773597U (en) * | 2019-10-25 | 2020-10-27 | 周兆弟 | Self-locking pile splicing mechanism and precast pile |
| CN214460353U (en) * | 2020-10-29 | 2021-10-22 | 周兆弟 | Splicing retaining structure for building and precast pile combination |
| CN113618875A (en) * | 2021-09-14 | 2021-11-09 | 连云港市连大管桩工程有限公司 | Precast concrete square pile with reinforced connecting structure and production method thereof |
| CN217128199U (en) * | 2022-02-28 | 2022-08-05 | 浙江大学建筑设计研究院有限公司 | Assembled precast concrete square pile |
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| Publication number | Publication date |
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| CN114411704A (en) | 2022-04-29 |
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