CN218911385U

CN218911385U - Combined spliced pile

Info

Publication number: CN218911385U
Application number: CN202222809518.2U
Authority: CN
Inventors: 陈宏�
Original assignee: Nanjing Ruiping Environmental Technology Co ltd
Current assignee: Jiangsu Jiazhenghong New Materials Technology Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-04-25
Anticipated expiration: 2032-10-24

Abstract

The utility model provides a combined spliced pile which comprises at least two tubular piles and at least one steel sleeve, wherein the tubular piles and the at least one steel sleeve are sequentially connected, and the steel sleeve is sleeved on the periphery of a joint of two adjacent tubular piles; an end plate is fixedly connected to the joint of each tubular pile, a steel hoop is welded on the outer wall of the end plate, and external threads are arranged on the outer wall of the steel hoop; the inner wall of the steel sleeve is provided with an internal thread, and the steel sleeve is connected with the external thread through the internal thread. According to the utility model, through designing the steel hoop with external threads and the steel sleeve with internal threads, the threaded connection of two adjacent tubular piles can be realized, and the pulling resistance strength of the combined spliced pile is improved in a mechanical connection mode.

Description

Combined spliced pile

Technical Field

The utility model relates to the technical field of precast concrete piles, in particular to a combined spliced pile.

Background

The construction process of the building pipe pile comprises pile fixing, pile machine positioning, pile inserting, pile sinking, pile splicing, pile sinking (pile pressing) again, pile sinking reaching the designed elevation, pile forming, and in the whole construction, when the upper section pipe pile and the lower section pipe pile are spliced, the end plates at the two end parts of the upper section pipe pile and the lower section pipe pile are required to be fixed.

At present, a common pile splicing mode is to splice an upper section of pipe pile and a lower section of pipe pile on site by a welding method, for example, chinese patent with publication number of CN104060606A discloses a combined spliced pipe pile and a pile splicing method thereof, wherein the combined spliced pipe pile comprises at least two hollow pile bodies and at least one steel cylinder body which are sequentially connected, the steel cylinder body is hollow and cylindrical and sleeved on the periphery of a joint of two adjacent hollow pile bodies of the combined spliced pipe pile, a plurality of plug welding holes are formed in the steel cylinder body, and the steel cylinder body is welded with the hollow pile bodies through the plug welding holes. According to the technical scheme, the pile body is connected through the steel cylinder body, the bearing capacity and the bending resistance of the hydraulic pile can be improved, meanwhile, the plug welding holes are formed in the steel cylinder body, and the pile is welded and connected in a plug welding mode, so that time and labor are saved compared with a traditional direct welding mode, but the problem that the pulling strength is weak only exists between the pipe piles formed by welding and connecting, and the welding quality difference can be caused due to the fact that the welding levels of the on-site pile foundation construction units and personnel are different, so that potential safety hazards are caused to engineering.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a combined spliced pile, which is simple in structure, convenient to splice and operate and capable of improving the pulling strength of the combined spliced pile by splicing an upper pipe pile and a lower pipe pile in a threaded connection mode.

In order to achieve the above and other objects, the present utility model is achieved by the following technical solutions: the combined spliced pile comprises at least two tubular piles and at least one steel sleeve which are sequentially connected, wherein the steel sleeve is sleeved on the periphery of the joint of two adjacent tubular piles; the inner wall of the steel sleeve is provided with an internal thread, and the steel sleeve is connected with the external thread through the internal thread.

In one embodiment, the steel sleeve is annular.

In one embodiment, the joint of two adjacent pipe piles is arranged in the middle of the steel sleeve.

In one embodiment, the height of the steel collar is greater than or equal to the height of the steel jacket.

In one embodiment, upper and lower edges of the steel sleeve are provided with welding aid chamfers.

In one embodiment, the pipe pile is a hollow round pile or a solid round pile.

In an embodiment, the pipe pile is a prestressed concrete pipe pile, a prestressed concrete thin-wall pipe pile, a prestressed high-strength concrete pipe pile, a thin-wall steel pipe centrifugal concrete pipe pile or a prestressed concrete steel pipe pile.

In one embodiment, the shape of the end plate matches the shape of the tube stake.

In an embodiment, the end plate is provided with a plurality of tensioning steel bar holes, and the end plate is fixedly connected with the pipe pile through the tensioning steel bar holes.

According to the utility model, through designing the steel hoop with external threads and the steel sleeve with internal threads, the threaded connection of two adjacent tubular piles can be realized, and the pulling resistance strength of the combined spliced pile is improved in a mechanical connection mode; and the combined spliced pile has the advantages of simple integral structure, convenient splicing operation and good market application prospect.

Drawings

Fig. 1 shows a schematic structure of a composite spliced pile according to the present utility model.

Fig. 2 shows a schematic cross-sectional view of a modular spliced pile according to the utility model.

Fig. 3 shows an enlarged view of the position a in fig. 2.

Detailed Description

Please refer to fig. 1 to 3. Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model.

As shown in fig. 1, the present utility model provides a combined spliced pile 100, which comprises at least two tubular piles 110 and at least one steel sleeve 120 connected in sequence, wherein the steel sleeve 120 is sleeved on the periphery of the joint of two adjacent tubular piles 110. Referring to fig. 2 and 3, an end plate 111 is fixedly connected to the connection portion of each tubular pile 110, and a steel hoop 112 with external threads 113 is welded on the outer wall of the end plate 111; the steel sleeve 120 is in a ring shape, an internal thread 121 is provided on the inner wall of the steel sleeve 120, and the steel sleeve 120 is connected with the external thread 1111 through the internal thread 121, so as to realize the fixed connection of two adjacent pipe piles 110.

As shown in fig. 2, the pipe pile 110 may be a hollow round pile or a solid round pile. Further, the pipe pile 110 may be a prestressed concrete pipe pile (PC pipe pile), a prestressed concrete thin-wall pipe pile (PTC pipe pile), a prestressed high-strength concrete pipe pile (PHC pipe pile), a thin-wall steel pipe centrifugal concrete pipe pile (TSC pipe pile), a prestressed concrete steel pipe pile (YTSC pipe pile), or the like.

A plurality of tensioning steel bar holes (not shown in the figure) are formed in the end plate 111, and the end plate 111 is fixedly connected with the pipe pile 110 through the tensioning steel bar holes. The shape of the end plate 111 may be a shape set according to the shape of the pipe pile 110 actually manufactured, for example, a hollow round end plate, a solid round end plate, or the like.

As shown in fig. 3, the joint between two adjacent pipe piles 110 is disposed in the middle of the steel sleeve 120. Height H of the steel hoop 112 ₂ Greater than or equal to the height H of the steel sleeve 120 ₁ So as to ensure the connection strength of the steel hoop 112 and the engagement surface of the steel sleeve 120, and simultaneously, the steel sleeve 120 can be completely sleeved on the steel hoop 12 of one pipe pile 110 so as to splice another pipe pile 110. For example, when the steel hoop 112 is 10 cm, the steel sleeve 120 may be 10 cm or 8 cm.

The application process of the utility model is as follows: firstly, sleeving the steel sleeve 120 upwards along the external thread 113 of the first tubular pile 110 until the steel sleeve 120 completely sleeves the steel hoop 112 of the first tubular pile 110; then, performing construction operations such as pile fixing, pile inserting, pile sinking and the like on the first tubular pile 110; when the pile splicing link is entered, firstly, one end of the second pipe pile 110 is aligned with the first pipe pile 110, then the steel sleeve 120 is rotated away from the first pipe pile 110 along the external thread 113 of the first pipe pile 110, so that the steel sleeve 120 is simultaneously in threaded connection with the two pipe piles 110, when the middle part of the steel sleeve 120 moves to the joint of the two pipe piles 110, at the moment, the exposed parts of the steel hoops 112 of the upper pipe pile 110 and the lower pipe pile 110 are basically equal in length, and the pile splicing is completed once; in addition, upper and lower edges 120a and 120b of the steel sleeve 120 may be provided with upper welding chamfers (not shown), and after the middle of the steel sleeve 120 is moved to the joint of the two pipe piles 110, the steel sleeve 120 is welded to the steel hoop 112 through the upper welding chamfers, so as to further improve the connection firmness of the steel sleeve 120 and the steel hoop 112. And (5) carrying out construction operations such as pile sinking, elevation confirmation, pile forming and the like after pile extension.

In summary, by means of the steel hoop 112 with the external thread 113 and the steel sleeve 120 with the internal thread 121, the threaded connection of two adjacent pipe piles 110 can be realized, and the pulling resistance of the combined spliced pile 100 can be improved in a mechanical connection mode.

Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value. The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. The combined spliced pile comprises at least two tubular piles and at least one steel sleeve which are sequentially connected, wherein the steel sleeve is sleeved on the periphery of the joint of two adjacent tubular piles,

an end plate is fixedly connected to the joint of each tubular pile, a steel hoop is welded on the outer wall of the end plate, and external threads are arranged on the outer wall of the steel hoop;

the inner wall of the steel sleeve is provided with an internal thread, and the steel sleeve is connected with the external thread through the internal thread.

2. A composite spliced pile according to claim 1, wherein the steel sleeve is annular.

3. A composite spliced pile according to claim 2, wherein the joint between two adjacent piles is provided in the middle of the steel sleeve.

4. A modular spliced pile according to claim 3, wherein the steel hoop has a height greater than or equal to the height of the steel jacket.

5. A composite spliced pile according to claim 1, wherein upper and lower edges of the steel sleeve are provided with welding-aid chamfer angles.

6. The composite spliced pile of claim 1, wherein the pile is a hollow round pile or a solid round pile.

7. The assembled spliced pile of claim 6, wherein the pile is a prestressed concrete pile, a prestressed concrete thin-wall pile, a prestressed high-strength concrete pile, a thin-wall steel pipe centrifugal concrete pile or a prestressed concrete steel pipe pile.

8. The modular splice of claim 6, wherein the end plates are shaped to match the shape of the pipe pile.

9. The composite spliced pile of claim 8, wherein the end plates are provided with a plurality of tensioning rebar holes, and the end plates are fixedly connected with the pipe pile through the tensioning rebar holes.