CN217150187U - High-reliability precast pile connecting structure and whole pile structure - Google Patents
High-reliability precast pile connecting structure and whole pile structure Download PDFInfo
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- CN217150187U CN217150187U CN202220593601.8U CN202220593601U CN217150187U CN 217150187 U CN217150187 U CN 217150187U CN 202220593601 U CN202220593601 U CN 202220593601U CN 217150187 U CN217150187 U CN 217150187U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to a precast pile connection structure and whole pile structure that reliability is high. The method comprises the following steps: end plates, sleeves and reinforcing steel bars; the end plate can be arranged on the connecting end face of the precast pile, and a welding groove is formed in the periphery of the end plate; the sleeve is arranged in the end plate; the reinforcing bar can be disposed in the precast pile and connected with the sleeve. Reinforcing bar and muffjoint in the precast pile for the sleeve can realize the connection of precast pile, also can realize stretching in of reinforcing bar, avoids offering simultaneously on the end plate and draws tight hole and connecting hole, has simplified the reinforcing bar and has stretched in tight process, has improved the reliability of the structure of end plate and intensity. Therefore, the precast pile connecting structure improves the reliability of connection of two precast piles by welding the end plates and connecting the sleeve and the steel bars.
Description
Technical Field
The utility model relates to a building material technical field especially relates to precast pile connection structure and whole pile structure that the reliability is high.
Background
The precast pile is made of various materials and in various forms in a factory or a construction site, and is driven, pressed or vibrated into the soil by pile sinking equipment; the precast pile mainly comprises a concrete precast pile and a steel pile.
The concrete precast pile has the advantages of high structural strength, high construction efficiency and the like, and is widely applied to building foundation construction. In the design of the high-rise building pile foundation, the required pile foundation is deep so as to ensure the stability of an upper-rise building. The length of a pile generally does not reach the designed depth, and the precast piles are connected together one by one and driven downwards until the designed depth is reached, and the process is called pile extension.
The joint types of the precast pile at present mainly comprise a welding joint and a mechanical joint. The connecting method of the precast pile welding joint is that the precast pile end plates are welded together on site, the connecting strength between precast piles mainly depends on the welding seam connecting strength, the welding seam quality has great influence on the welding seam connecting strength, and the discreteness of the welding seam quality is great due to weather and artificial influence during the site welding, so that the connecting reliability cannot be guaranteed; the connecting method of the mechanical joint of the precast pile is to splice two sections of piles together through a card-inserting type mechanical joint or a hoop type mechanical joint, so the quality and the precision of the mechanical joint have great influence on the reliability of the precast pile connecting structure.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide a precast pile connecting structure and a pile-erecting structure having high reliability, in order to solve the problem of low reliability of the precast pile connecting structure.
A high-reliability precast pile connection structure includes:
the end plate can be arranged on the connecting end face of the precast pile, and a welding groove is formed in the periphery of the end plate;
a sleeve disposed within the end plate;
the reinforcing bar, the reinforcing bar can set up in the precast pile and with muffjoint.
Foretell precast pile connection structure that reliability is high, including the end plate, sleeve and reinforcing bar, the end plate sets up on the connection terminal surface of precast pile, the sleeve sets up in the end plate, reinforcing bar and muffjoint, welding groove on the end plate is used for welding two adjacent end plates, in the installation, two adjacent precast piles form stable relation of connection through two adjacent end plate welding, because still be equipped with the sleeve on the end plate, two adjacent sleeves can also further be connected, improve the reliability that two adjacent precast pile are connected, and, reinforcing bar and muffjoint in the precast pile, make the sleeve can realize the connection of precast pile, also can realize straining of reinforcing bar, avoid offering simultaneously on the end plate and draw tight hole and connecting hole, the reinforcing bar process of straining has been simplified, the reliability of the structure and the intensity of end plate has been improved. Therefore, the precast pile connecting structure improves the connection reliability of two precast piles by welding the end plates and connecting the sleeve and the steel bars.
In one embodiment, a first connecting hole is formed in the end plate, and the sleeve is inserted into the first connecting hole and is in threaded connection with the end plate;
or, be equipped with first connecting hole in the end plate, the sleeve insert in the first connecting hole and with the end plate welding.
In one embodiment, the connecting device further comprises a connecting pin, and one end of the connecting pin is connected with the sleeve.
In one embodiment, a locking piece is arranged in the sleeve, a second connecting hole is arranged in the locking piece, and one end of the connecting pin can be inserted into the second connecting hole to be connected with the locking piece.
In one embodiment, one end of the connecting pin is provided with a diameter-variable part and an insertion part, the insertion part is arranged on one side of the diameter-variable part far away from the other end of the connecting pin, the diameter of the diameter-variable part is gradually reduced along the direction close to the insertion part, the part of the diameter-variable part connected with the insertion part is a collar, the diameter of the inserting neck is smaller than the maximum diameter of the inserting part, the locking part comprises a connecting part and a clamping part, the connecting part and the clamping part are integrally formed, the connecting part is in threaded connection with the sleeve, the clamping part comprises a plurality of elastic pieces which are arranged at intervals around the central axis of the connecting part, the elastic pieces are gathered together along the radial direction far away from the connecting part, the inserting portion can penetrate through the second connecting hole and is connected with the clamping portion in a clamped mode, so that the end portions of the elastic pieces are gathered on the inserting neck.
In one embodiment, a third connecting hole is formed in the sleeve, and one end of the connecting pin can be inserted into the sleeve to be in threaded connection;
or a third connecting hole is formed in the sleeve, and one end of the connecting pin can be inserted into the sleeve to be riveted.
In one embodiment, a fourth connecting hole is formed in the sleeve, the fourth connecting hole is communicated with the third connecting hole and is coaxially arranged, the diameter of the fourth connecting hole is smaller than that of the third connecting hole, the first end of the reinforcing steel bar penetrates through the fourth connecting hole and is inserted into the third connecting hole, a pier head is arranged at the first end of the reinforcing steel bar and is located in the fourth connecting hole, and the diameter of the pier head is larger than that of the fourth connecting hole.
In one embodiment, a fifth connecting hole is formed in the sleeve, and the reinforcing steel bar is inserted into the fifth connecting hole and is in threaded connection with the sleeve.
In one embodiment, the fifth connecting hole is a conical hole, a conical connecting portion is arranged at one end, close to the sleeve, of the steel bar, the diameter of the conical connecting portion gradually decreases along the direction close to the sleeve, and the conical connecting portion is inserted into the conical hole and is in threaded connection with the sleeve.
The utility model provides a whole pile structure, includes a plurality of precast piles and a plurality of precast pile connection structure that the reliability is high, precast pile connection structure's end plate sets up on the connection terminal surface of precast pile, adjacent two the end plate is in welding groove department welding forms the weld part, precast pile connection structure's reinforcing bar sets up in the precast pile, adjacent two the precast pile is through two precast pile connection structure connects.
The whole pile structure comprises a plurality of precast piles and a plurality of precast pile connecting structures with high reliability, namely at least two precast piles and at least two precast pile connecting structures with high reliability, wherein at least one precast pile connecting structure is arranged on one precast pile, and a plurality of precast pile connecting structures can be arranged on one precast pile. In the installation, precast pile connection structure on two adjacent precast piles sets up relatively, two adjacent precast piles form stable relation of connection through two adjacent end plate welding, because still be equipped with the sleeve on the end plate, two adjacent sleeves can further be connected, improve the reliability that two adjacent precast piles are connected, and, reinforcing bar and muffjoint in the precast pile, make the sleeve can realize the connection of precast pile, also can realize straining of reinforcing bar, avoid seting up simultaneously on the end plate and draw tight hole and connecting hole, the reinforcing bar has been simplified and has been prestretched tight process, the structure of end plate and the reliability of intensity have been improved. Therefore, the precast pile connecting structure has the advantages that the end plates are welded, the sleeve is connected with the steel bars, the connecting reliability of the two precast piles is improved, and the stability of the whole pile structure is improved.
Drawings
Fig. 1 is a schematic structural view of a precast pile connection structure in an embodiment;
FIG. 2 is a schematic structural view of the pile forming structure before installation in an embodiment;
FIG. 3 is a schematic structural view of an installed pile forming structure according to an embodiment;
fig. 4 is a schematic diagram of a pre-tensioned rebar structure according to an embodiment.
Reference numerals: 100. a precast pile connecting structure; 10. an end plate; 11. welding a groove; 12. welding the part; 20. a sleeve; 30. reinforcing steel bars; 31. heading; 40. a connecting pin; 41. a diameter-variable part; 42. a plug-in part; 50. a locking member; 51. a connecting portion; 52. a clamping part; 60. prefabricating a pile; 70. pre-tensioning the screw; 80. pre-tensioning the end plate; 200. and (5) pile forming structure.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
The high reliability precast pile connection structure 100 and the pile completing structure 200 provided by some embodiments of the present application will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, in one embodiment, there is provided a precast pile connecting structure 100 with high reliability, including: end plate 10, sleeve 20 and reinforcing bar 30;
as shown in fig. 2, the end plate 10 may be disposed on a connection end surface of a precast pile 60, and a welding groove 11 is disposed on an outer circumference of the end plate 10;
as shown in fig. 2, wherein the sleeve 20 is disposed within the end plate 10;
as shown in fig. 2, wherein the reinforcing bars 30 can be disposed in the precast pile 60 and connected with the sleeve 20.
The precast pile connecting structure 100 with high reliability comprises an end plate 10, a sleeve 20 and a steel bar 30, wherein the end plate 10 is arranged on the connecting end surface of a precast pile 60, the sleeve 20 is arranged in the end plate 10, the steel bar 30 is connected with the sleeve 20, a welding bevel 11 on the end plate 10 is used for welding two adjacent end plates 10, during installation, two adjacent precast piles 60 are welded by two adjacent end plates 10 to form a stable connection relationship, because the end plates 10 are also provided with the sleeves 20, two adjacent sleeves 20 can be further connected, so that the connection reliability of two adjacent precast piles 60 is improved, in addition, the steel bars 30 in the precast pile 60 are connected with the sleeve 20, so that the sleeve 20 can realize the connection of the precast pile 60 and the pretension of the steel bars 30, the situation that the end plate 10 is provided with a tensioning hole and a connecting hole at the same time is avoided, the pretensioning process of the steel bars 30 is simplified, and the reliability of the structure and the strength of the end plate 10 is improved. Therefore, the precast pile connection structure 100 is welded by the end plates 10, and the sleeves 20 are connected with the reinforcing bars 30 to improve the reliability of the connection of the two precast piles 60.
Specifically, as shown in fig. 1, in one embodiment, a first connection hole is formed in the end plate 10, and the sleeve 20 is inserted into the first connection hole and is screwed with the end plate 10. The sleeve 20 is in threaded connection with the end plate 10, so that the sleeve 20 is convenient to replace, disassemble and assemble, and the sleeve 20 is prevented from being damaged to influence the reliability of the connecting structure.
Alternatively, as shown in fig. 1, in an embodiment, a first connection hole is formed in the end plate 10, and the sleeve 20 is inserted into the first connection hole and welded to the end plate 10.
Specifically, as shown in fig. 1, in one embodiment, the connecting device further includes a connecting pin 40, and one end of the connecting pin 40 is connected to the sleeve 20. Both ends of the connecting pin 40 are inserted into the adjacent two sleeves 20, respectively, for connecting the adjacent two sleeves 20.
Specifically, as shown in fig. 1, in one embodiment, a locking member 50 is disposed in the sleeve 20, and a second coupling hole is disposed in the locking member 50, and one end of the coupling pin 40 can be inserted into the second coupling hole to couple with the locking member 50. The coupling pin 40 and the sleeve 20 are coupled by the locker 50, thereby improving the reliability of the coupling pin 40 and the sleeve 20.
Specifically, as shown in fig. 1, in an embodiment, one end of the connecting pin 40 is provided with a diameter-changing portion 41 and an insertion portion 42, the insertion portion 42 is disposed on one side of the diameter-changing portion 41 away from the other end of the connecting pin 40, the diameter of the diameter-changing portion 41 gradually decreases along a direction close to the insertion portion 42, a portion of the diameter-changing portion 41 connected to the insertion portion 42 is a collar, the diameter of the collar is smaller than the maximum diameter of the insertion portion 42, the locking member 50 includes a connecting portion 51 and a fastening portion 52, the connecting portion 51 and the fastening portion 52 are integrally formed, the connecting portion 51 is in threaded connection with the sleeve 20, the fastening portion 52 includes a plurality of elastic pieces arranged at intervals around a central axis of the connecting portion 51, the plurality of elastic pieces are gathered radially along a direction away from the connecting portion 51, the insertion portion 42 can pass through the second connecting hole to be fastened with the fastening portion 52, so that the end parts of the elastic pieces are gathered on the inserting neck. The connecting pin 40 is inserted into the locking member 50, and the clamping portion 52 of the locking member 50 is used for preventing the connecting pin 40 from moving reversely and preventing the connecting pin 40 from falling off.
Specifically, as shown in fig. 1, in one embodiment, a third connecting hole is formed in the sleeve 20, and one end of the connecting pin 40 can be inserted into the sleeve 20 for screwing. The connecting pin 40 is detachably connected to the sleeve 20.
Alternatively, as shown in fig. 1, in an embodiment, a third connection hole is formed in the sleeve 20, and one end of the connection pin 40 can be inserted into the sleeve 20 for riveting.
Specifically, as shown in fig. 1, in an embodiment, a fourth connecting hole is formed in the sleeve 20, the fourth connecting hole is communicated with the third connecting hole and is coaxially disposed, an aperture of the fourth connecting hole is smaller than an aperture of the third connecting hole, the first end of the reinforcing steel bar 30 penetrates through the fourth connecting hole and is inserted into the third connecting hole, a pier head 31 is formed at the first end of the reinforcing steel bar 30, the pier head 31 is located in the fourth connecting hole, and a diameter of the pier head 31 is larger than a diameter of the fourth connecting hole. The reinforcing bar 30 is clamped with the sleeve 20, and the pier head 31 is formed after the reinforcing bar 30 is inserted into the sleeve 20.
Optionally, as shown in fig. 1, in an embodiment, a fifth connection hole is formed in the sleeve 20, and the reinforcing bar 30 is inserted into the fifth connection hole and is screwed with the sleeve 20.
More specifically, as shown in fig. 1, in an embodiment, the fifth connecting hole is a conical hole, one end of the reinforcing bar 30 close to the sleeve 20 is provided with a conical connecting portion 51, a diameter of the conical connecting portion 51 is gradually reduced in a direction close to the sleeve 20, and the conical connecting portion 51 is inserted into the conical hole to be in threaded connection with the sleeve 20. The conical coupling portion 51 serves to prevent the coupling of the reinforcing bars 30 to the sleeve 20 from being released.
As shown in fig. 2 and fig. 3, in an embodiment, a pile erecting structure 200 is provided, which includes a plurality of precast piles 60 and a plurality of precast pile connecting structures 100 with high reliability, end plates 10 of the precast pile connecting structures 100 are disposed on connecting end faces of the precast piles 60, two adjacent end plates 10 are welded at the welding grooves 11 to form welding portions 12, reinforcing bars 30 of the precast pile connecting structures 100 are disposed in the precast piles 60, and two adjacent precast piles 60 are connected by two precast pile connecting structures 100.
The whole pile structure 200 includes a plurality of precast piles 60 and a plurality of precast pile connecting structures 100 with high reliability, that is, at least two precast piles 60 and at least two precast pile connecting structures 100 with high reliability are included, at least one precast pile 60 is provided with at least one precast pile connecting structure 100, and one precast pile 60 may also be provided with a plurality of precast pile connecting structures 100. In the installation, precast pile connection structure 100 on two adjacent precast piles 60 sets up relatively, two adjacent precast piles 60 form stable relation of connection through two adjacent end plate 10 welding, because still be equipped with sleeve 20 on the end plate 10, two adjacent sleeves 20 can further be connected, improve the reliability that two adjacent precast piles 60 are connected, and, reinforcing bar 30 in precast pile 60 is connected with sleeve 20, make sleeve 20 can realize the connection of precast pile 60, also can realize the pretension of reinforcing bar 30, avoid offering simultaneously on end plate 10 and draw tight hole and connecting hole, the reinforcing bar 30 pretension process has been simplified, the reliability of the structure of end plate 10 and intensity has been improved. Therefore, the precast pile connection structure 100 is welded by the end plates 10, and the sleeves 20 are connected with the reinforcing bars 30 to improve the reliability of the connection of the two precast piles 60, thereby improving the stability of the whole pile structure 200.
Specifically, as shown in fig. 4, since the sleeve 20 is disposed in the end plate 10, the sleeve 20 is connected to the reinforcing bar 30, and the sleeve 20 is provided with the coupling hole for coupling the locking member 50 or the coupling pin 40, in the pre-tensioning of the reinforcing bar 30, the pre-tensioning end plate 80 is first mounted on the end plate 10, the pre-tensioning end plate 80 is provided with the openings corresponding to the number and the positions of the sleeves 20 on the end plate 10, the pre-tensioning screws 70 are inserted into the sleeves 20 and are threadedly coupled through the openings, thereby fixing the pre-tensioning end plate 80 to the end plate 10, and then the pre-tensioning end plate 80 is applied with the tension P, thereby achieving the pre-tensioning effect of the reinforcing bar 30. Therefore, the pre-tensioning of the steel bars does not need to provide other threaded holes on the end plate 10, but directly utilizes the sleeve 20 on the precast pile linking structure and the end plate 10 to pre-tension the steel bars 30, thereby reducing the number of the holes of the end plate 10 and further improving the strength of the end plate 10.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a precast pile connection structure that reliability is high, its characterized in that includes:
the end plate can be arranged on the connecting end face of the precast pile, and a welding groove is formed in the periphery of the end plate;
a sleeve disposed within the end plate;
the reinforcing bar, the reinforcing bar can set up in the precast pile and with muffjoint.
2. The high-reliability precast pile connection structure according to claim 1, wherein a first connection hole is formed in the end plate, and the sleeve is inserted into the first connection hole and is screwed with the end plate;
or, be equipped with first connecting hole in the end plate, the sleeve insert in the first connecting hole and with the end plate welding.
3. The high-reliability precast pile connection structure according to claim 1, further comprising a connection pin, one end of which is connected to the sleeve.
4. The high-reliability precast pile connecting structure according to claim 3, wherein a locking member is arranged in the sleeve, a second connecting hole is arranged in the locking member, and one end of the connecting pin can be inserted into the second connecting hole to be connected with the locking member.
5. The precast pile connecting structure with high reliability according to claim 4, wherein one end of the connecting pin is provided with a diameter-changing portion and an insertion portion, the insertion portion is arranged on one side of the diameter-changing portion away from the other end of the connecting pin, the diameter of the diameter-changing portion gradually decreases along the direction close to the insertion portion, the portion of the diameter-changing portion connected with the insertion portion is a collar, the diameter of the collar is smaller than the maximum diameter of the insertion portion, the locking member comprises a connecting portion and a clamping portion, the connecting portion and the clamping portion are integrally formed, the connecting portion is in threaded connection with the sleeve, the clamping portion comprises a plurality of elastic pieces arranged at intervals around the central axis of the connecting portion, the plurality of elastic pieces are gathered together along the radial direction away from the connecting portion, and the insertion portion can penetrate through the second connecting hole to be clamped with the clamping portion, so that the end parts of the elastic pieces are gathered on the inserting neck.
6. The high-reliability precast pile connecting structure according to claim 3, wherein a third connecting hole is formed in the sleeve, and one end of the connecting pin can be inserted into the sleeve for threaded connection;
or a third connecting hole is formed in the sleeve, and one end of the connecting pin can be inserted into the sleeve to be riveted.
7. The precast pile connection structure with high reliability according to claim 6, wherein a fourth connection hole is formed in the sleeve, the fourth connection hole is communicated with the third connection hole and is coaxially arranged, the diameter of the fourth connection hole is smaller than that of the third connection hole, the first end of the steel bar penetrates through the fourth connection hole and is inserted into the third connection hole, a pier head is arranged at the first end of the steel bar and is located in the fourth connection hole, and the diameter of the pier head is larger than that of the fourth connection hole.
8. The high-reliability precast pile connection structure according to claim 1, wherein a fifth connection hole is provided in the sleeve, and the reinforcing steel bar is inserted into the fifth connection hole and is threadedly connected with the sleeve.
9. The precast pile connection structure with high reliability according to claim 8, wherein the fifth connection hole is a conical hole, one end of the reinforcing steel bar close to the sleeve is provided with a conical connection portion, the diameter of the conical connection portion is gradually reduced along a direction close to the sleeve, and the conical connection portion is inserted into the conical hole to be in threaded connection with the sleeve.
10. A pile construction comprising a plurality of precast piles and a plurality of precast pile connection structures of claim 1 to claim 9, wherein end plates of the precast pile connection structures are disposed on connection end surfaces of the precast piles, two adjacent end plates are welded at the welding grooves to form welding portions, reinforcing steel bars of the precast pile connection structures are disposed in the precast piles, and two adjacent precast piles are connected by two precast pile connection structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220593601.8U CN217150187U (en) | 2022-03-17 | 2022-03-17 | High-reliability precast pile connecting structure and whole pile structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220593601.8U CN217150187U (en) | 2022-03-17 | 2022-03-17 | High-reliability precast pile connecting structure and whole pile structure |
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| CN217150187U true CN217150187U (en) | 2022-08-09 |
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| CN202220593601.8U Active CN217150187U (en) | 2022-03-17 | 2022-03-17 | High-reliability precast pile connecting structure and whole pile structure |
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