CN215948158U

CN215948158U - Rectangular pile

Info

Publication number: CN215948158U
Application number: CN202122496815.1U
Authority: CN
Inventors: 缪海林; 许德刚; 王蔚
Original assignee: Nanjing Huilian Building Materials Technology Development Co ltd
Current assignee: Nanjing Huilian Building Materials Technology Development Co ltd
Priority date: 2021-10-16
Filing date: 2021-10-16
Publication date: 2022-03-04
Anticipated expiration: 2031-10-16

Abstract

The utility model relates to a rectangular pile, including the pile body, the cross section of pile body is outer rectangle interior hollow circle, and the four corners department of pile body is equipped with the transition arc, and the shape of transition arc is one section in the ellipse/parabola the pile body on respectively be provided with the cell body on two relative sides, the cell body sets up along the direction of height downwardly extending of pile body from the up end of pile body, and the cell body on two sides uses the central plane symmetry setting that is on a parallel with two sides at pile body central line place. Through set up the cell body on the side of pile body, when carrying out excavation supporting, through pouring into the grout material that excels in between the cell body on two adjacent pile bodies, can be with the gap shutoff between the adjacent pile body, can prevent that rivers from flowing earth from the gap of adjacent pile body.

Description

Rectangular pile

Technical Field

The application relates to the field of precast piles, in particular to a rectangular pile.

Background

At present, a reinforced concrete precast pile is prefabricated in a precast component processing factory, is maintained to reach the design strength, is transported to a construction site, is driven into the soil by a pile driver, and then is poured on the top of the pile to form the foundation of a bearing platform beam.

The precast pile can be used in the construction of river course side slope base protection, can arrange one root of a plurality of precast piles in the earth of squeezing into the river course bottom in the river course that is close to the bank during construction, then pour the cushion cap roof beam at the top of precast pile and be used for building trestle etc.. Because the flow of river, river can erode the earth on bank, and rivers can take out the earth on bank from the gap of two adjacent precast piles easily at the flow of two adjacent precast piles to cause the loss of the earth on bank, the time of having of a specified duration has caused the collapse on bank easily.

SUMMERY OF THE UTILITY MODEL

In order to prevent that rivers from taking the earth of bank from the gap of two adjacent precast piles out, this application provides a rectangular pile.

The application provides a rectangular pile adopts following technical scheme to obtain:

the utility model provides a rectangular pile, includes the pile body, the cross section of pile body be the rectangle the pile body on two relative sides on respectively be provided with the cell body, the cell body sets up along the direction of height downwardly extending of pile body from the up end of pile body, and the cell body on two sides sets up with the central plane symmetry that is on a parallel with two sides at pile body central line place.

Through the technical scheme, set up the cell body on the side of pile body, when carrying out excavation supporting, through pouring into the grout material that excels in between the cell body on two adjacent pile bodies, can be with the gap shutoff between the adjacent pile body, can prevent that rivers from flowing earth from the gap of adjacent pile body, and the cell body on two sides sets up with the central plane symmetry that is on a parallel with two sides at pile body central line place, can when a plurality of rectangular piles are strutted, the cell body on two adjacent pile bodies can the position corresponding, thereby can become a passageway of pouring into the grout material that excels in with the cell body amalgamation on the adjacent pile body.

Optionally, the rectangle of the cross section of the pile body comprises two symmetrically arranged long sides and two symmetrically arranged short sides, and the groove body is arranged on the long side face corresponding to the two long sides or the short side face corresponding to the two short sides.

Through the technical scheme, when the side face corresponding to the long edge is arranged on the groove body, and the pile bodies are supported at the moment, the longitudinal length of each pile body is larger, so that the pile body has higher rigidity, and the pile body is more suitable for supporting a deeper river channel; when the groove body is provided with the side face corresponding to the short edge, the transverse length of each pile body is large when the pile bodies support, the number of the needed pile bodies can be reduced, but the rigidity is not high, and the pile body is suitable for supporting of a shallow river channel.

Optionally, the length of the groove body is 1/2 to 2/3 of the height of the pile body.

Through above-mentioned technical scheme, when the pile body inserts in the earth, the cell body just can not insert in the earth or in the earth is inserted to a few part, such mode can prevent that subaqueous silt from extruding to the top under the cell body, blocks up the cell body to influence the pouring of grout material.

Optionally, the groove body is an elliptical arc groove.

Through the technical scheme, the groove bodies are arranged to be the elliptical arc-shaped grooves, so that when high-strength grouting materials are poured between the groove bodies on the two adjacent pile bodies, the high-strength grouting materials can be filled in the groove bodies more easily.

Optionally, chamfer structures are arranged at four corners of the pile body.

Through above-mentioned technical scheme, set up the chamfer structure through four angles departments at the pile body, carry out the drawing of patterns in the production of being convenient for.

Optionally, the chamfer structure includes transition arcs disposed at four corners of the pile body, and the shape of the transition arc is one of an ellipse and a parabola.

Through the technical scheme, the reduction of the effective cross section of the pile body at the corner can be reduced through the circular or parabolic transition arc, so that the bearing capacity of the pile body is improved. Compared with the conventional circular arc transition arc, the elliptical or parabolic transition arc has a larger change rate with the side face of the pile body, so that demolding is facilitated during production, and the production efficiency and the yield are improved.

Optionally, a steel reinforcement cage is arranged in the pile body, the steel reinforcement cage comprises prestressed steel bars and spiral stirrups, and the spiral stirrups are spirally wound on all the prestressed steel bars; the spiral stirrup is arranged into an encryption area at two ends of the pile body along the length direction, a non-encryption area is arranged between the two encryption areas, and the stirrup distance of the spiral stirrup in the encryption area is smaller than the thread pitch of the spiral stirrup in the non-encryption area.

Through the technical scheme, the reinforcement cage consisting of the prestressed reinforcement and the spiral stirrups can be tightly embedded with the concrete of the pile body, so that the strength of the pile body, including the shearing resistance and the compression resistance of the pile body, is greatly improved; the setting in encryption district can improve the structural strength at pile body both ends to guarantee the bulk strength of rectangular pile.

Optionally, a drain pipe is arranged on the pile body, and the drain pipe penetrates through two side faces of the pile body adjacent to the side face where the groove body is arranged.

Through above-mentioned technical scheme, through setting up the wash-out pipe, when rivers carry out the punching press to the pile body, can carry out the pressure release through the wash-out pipe, can guarantee the stability of pile body.

Optionally, 3 drain pipes are distributed along the height direction of the pile body.

Through above-mentioned technical scheme, the outlet pipe sets up a plurality ofly along pile body direction of height, can adapt to different water levels.

Optionally, the upper end of the pile body is provided with an upper end plate, the lower end of the pile body is provided with a lower end plate, two side faces, corresponding to the groove body, of the upper end plate are provided with end plate grooves corresponding to the groove body, and the end plate grooves penetrate through the upper end face and the lower end face of the upper end plate and are communicated with the groove body.

Through above-mentioned technical scheme, through set up the end plate at the upper and lower end of pile body, can connect a stake through the end plate and handle when single pile body length is not enough, the application scope of use that has improved.

Optionally, the pile body is further provided with a hollow column hole, a center line of the hollow column hole coincides with a center line of the pile body, and the hollow column hole penetrates through the upper end face and the lower end face of the pile body.

Through above-mentioned technical scheme, the pile body is inside to set up the hollow column hole to alleviate the weight of whole pile body, and the axis in hollow column hole coincides mutually with the axis of pile body, with the overall structure intensity of guaranteeing the pile body even, difficult local deformation that produces.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through set up the cell body on the side of pile body, when carrying out excavation supporting, through pouring into the grout material that excels in between the cell body on two adjacent pile bodies, can be with the gap shutoff between the adjacent pile body, can prevent that rivers from flowing earth from the gap of adjacent pile body.

2. By adopting the rectangular piles with the long sides and the short sides to replace the traditional square piles, when the side faces corresponding to the long sides are arranged on the groove body, and the pile bodies are supported, the longitudinal length of each pile body is larger, so that the pile body has larger rigidity, and the pile body is more suitable for supporting deeper riverways; when the groove body is provided with the side face corresponding to the short edge, the transverse length of each pile body is large when the pile bodies support, the number of the needed pile bodies can be reduced, but the rigidity is not high, and the pile body is suitable for supporting of a shallow river channel, so that the application range is wide.

3. The four corners of the pile body are provided with the chamfer structures, the arc of the chamfer adopts an elliptical or parabolic transition arc, and the change rate between the arc and the side face of the pile body is higher, so that demoulding during production is facilitated, and the production efficiency and the yield are improved; and the reduction of the effective cross section of the pile body at the corner can be reduced, so that the bearing capacity of the pile body is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.

Fig. 2 is a schematic structural diagram of a reinforcement cage embodied by a rectangular pile according to the present application.

Fig. 3 is a schematic structural view showing a groove position in embodiment 1 of the present application.

Fig. 4 is a structural schematic diagram for supporting an excavation pit in embodiment 1 of the present application.

Fig. 5 is a schematic view of the overall structure of embodiment 2 of the present application.

Fig. 6 is a schematic structural view showing a groove position in example 2 of the present application.

Fig. 7 is a structural schematic diagram for supporting an excavation pit according to embodiment 2 of the present application.

Fig. 8 is a schematic structural diagram of embodiment 3 of the present application.

Fig. 9 is a schematic structural diagram of embodiment 4 of the present application.

Reference numerals: 1. a pile body; 2. a trough body; 3. a reinforcement cage; 31. pre-stressing the steel bars; 32. a spiral stirrup; 33. an encryption area; 34. a non-dense region; 4. a transition arc; 5. a hollow post hole; 6. a drain pipe; 7. a lower end plate; 8. an upper end plate; 81. an end plate recess; 82. the end plate long side; 83. the short sides of the end plates.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

Example 1:

referring to fig. 1 and 2, the present embodiment discloses a rectangular pile, which includes a pile body 1 formed by pouring concrete and a reinforcement cage 3, wherein the pile body 1 is configured in a rectangular shape, a central column hole 5 is provided inside the pile body 1 to reduce the weight of the whole pile body 1, and the cross section of the central column hole 5 is circular, and at this time, the cross section of the pile body 1 is in a hollow circular shape with an outer side and an inner side. The central axis of the central column hole 5 coincides with the central axis of the pile body 1, so that the whole structure of the pile body 1 is uniform in strength and is not easy to generate local deformation. The concrete is formed into a central column hole 5 of the pile body 1 through a centrifugal process. The thickness of the reinforced concrete protective layer on the outermost layer of the pile body 1 is more than or equal to 35mm, and the concrete durability of the prestressed concrete hollow square pile product is improved.

The reinforcement cage 3 is composed of a prestressed reinforcement 31 and a spiral stirrup 32, and the spiral stirrup 32 is spirally wound around the prestressed reinforcement 31. The spiral stirrups 32 comprise an encrypted area 33 and an unencrypted area 34, wherein the encrypted area 33 is positioned at the two ends of the pile body 1 along the length direction, and the unencrypted area 34 is positioned between the two encrypted areas 33 so as to ensure that the strength of the pile body 1 in the encrypted areas 33 is sufficient.

Referring to fig. 1 and 3, transition arcs 4 are arranged at the corners of the pile body 1 to form chamfers, so that demoulding is convenient during production. In this embodiment, the shape of the transition arc 4 may be a segment of an ellipse or a parabola, and the circular or parabolic transition arc 4 may reduce the reduction of the effective cross section of the pile body 1 at the corner, thereby improving the bearing capacity of the pile body. Compared with the conventional circular arc transition arc 4, the elliptical or parabolic transition arc 4 has a larger change rate with the side surface of the pile body 1, so that demolding is facilitated during production, and the production efficiency and the yield are improved.

Referring to fig. 1 and 3, the cross section of the pile body 1 is a rectangle, the side surface corresponding to the long side of the rectangle is a long side surface 11, and the side surface corresponding to the short side of the rectangle is a short side surface 12. The two long side surfaces 11 are respectively provided with a groove body 2, the groove bodies 2 extend downwards from the upper end surface of the pile body 1 along the height direction of the pile body 1, the length direction of the groove bodies 2 is parallel to the central line of the pile body 1, and the length of the groove bodies 2 is the length from the upper end surface to the lower end surface of the pile body 1, namely the height of the pile body 1 is 1/2-2/3.

The groove bodies 2 on the two long side surfaces 11 are symmetrically arranged with the central plane of the central line of the pile body 1 parallel to the two long side surfaces 11, so that the groove bodies 2 between the two adjacent pile bodies 1 can correspond to each other when the rectangular pile supports. In this embodiment, two tanks 2 are provided on each long side 11.

The pile body 1 is provided with the water drain pipes 6, two ends of each water drain pipe 6 penetrate through the two short side surfaces 12, in the embodiment, the number of the water drain pipes 6 is three, the water drain pipe 6 at the uppermost end is 1000mm away from the top of the pile body 1, and the rest water drain pipes 6 are vertically distributed at intervals of 500mm-2000 mm.

Referring to fig. 4, when the rectangular pile of this embodiment is used for supporting, the rectangular pile is driven into the soil at the bottom of the river, and when the pile body 1 is inserted into the soil, the groove body 2 is not inserted into the soil or a small part of the groove body is inserted into the soil, so that the underwater sludge can be prevented from being extruded upwards from the lower part of the groove body 2 to block the groove body 2, and the influence is further avoided. The pile bodies 1 are arranged in parallel, the long side surfaces 11 of the pile bodies 1 are arranged in a close fit manner, so that the groove bodies 2 on two adjacent pile bodies 1 are matched to form a basically closed elliptical groove, and high-strength grouting material is poured into the basically closed elliptical groove from the top end of the pile body 1, so that a gap between two adjacent pile bodies 1 is closed.

When the rectangular pile is used for supporting, the longitudinal length of each pile body 1 is large, so that the rectangular pile has high rigidity, and is suitable for supporting deep river channels.

Example 2:

referring to fig. 5 and 6, the present embodiment is the same as embodiment 1 except that in the present embodiment, two short side surfaces 12 of each pile body 1 are provided with a groove body 2, and the groove bodies 2 on the two short side surfaces 12 are symmetrically arranged along a central line, so that the groove bodies 2 between two adjacent pile bodies 1 can correspond to each other when rectangular piles are used for supporting. In this embodiment, two tanks 2 are provided on each short side 11.

In the embodiment, the pile body 1 is provided with the drain pipes 6, two ends of each drain pipe 6 penetrate through the two long side surfaces 11, in the embodiment, the number of the drain pipes 6 is three, the drain pipe 6 at the uppermost end is 1000mm away from the top of the pile body 1, and the rest drain pipes 6 are vertically distributed at intervals of 500mm-2000 mm.

Referring to fig. 7, in the rectangular pile of the present embodiment, when the rectangular pile is driven into the soil at the bottom of a river, the depth of the pile body 1 driven into the soil is generally 1/3 of the height of the pile body 1, so that the groove body 2 is not inserted into the soil when the pile body 1 is inserted into the soil. The piles 1 are arranged in parallel, the short side surfaces 12 of each pile are arranged in a close fit manner, so that the groove bodies 2 on two adjacent piles 1 are matched to form a basically closed elliptical groove, and high-strength grouting material is poured into the basically closed elliptical groove from the top end of the pile 1, so that a gap between two adjacent piles 1 is closed.

In the rectangular pile of the present embodiment, the length of each pile body 1 in the lateral direction is large, and the number of pile bodies required can be reduced, but the rigidity is not high as compared with the rectangular pile of embodiment 1, and the rectangular pile is suitable for supporting a shallow river.

Example 3:

referring to fig. 8, the rest of the present embodiment is the same as embodiment 1, except that an upper end plate 8 is disposed on the upper end surface of the pile body 1, a lower end plate 7 is disposed on the lower end surface of the pile body 1, and both the upper end plate 8 and the lower end plate 7 are fixedly connected to the pile body 1 through a prestressed reinforcement 31.

The two end plate long side surfaces 82 corresponding to the long side surfaces 11 of the upper end plate 8 are provided with end plate grooves 81, each end plate long side surface 82 is provided with two end plate grooves 81, the end plate grooves 81 penetrate through the upper end surface and the lower end surface of the upper end plate 8 and are communicated with the tank body 2, and the cross sections of the end plate grooves 81 are the same as the cross section of the tank body 2.

When the precast pile of the embodiment is used for supporting, high-strength grouting material is poured into the basically closed elliptical groove formed by matching the end plate grooves 81 on the adjacent upper end plates 8, and the high-strength grouting material flows into the elliptical groove formed by the groove bodies 2 between the adjacent pile bodies 1 along the basically closed elliptical groove formed by matching the end plate grooves 81, so that a gap between the two adjacent pile bodies 1 is closed.

Another usage of this embodiment is: when the precast pile needs to be driven into the river bottom deeply, the length of a single precast pile is not enough, 1 common precast pile is connected through the lower end plate 7 for use, the pile body side wall of the common precast pile connected with the lower end plate 7 is not provided with a groove body, and the common precast pile needs to be driven into the soil in the river bottom completely.

Example 4:

referring to fig. 9, the rest of the present embodiment is the same as embodiment 2, except that an upper end plate 8 is disposed on the upper end surface of the pile body 1, a lower end plate 7 is disposed on the lower end surface of the pile body 1, and both the upper end plate 8 and the lower end plate 7 are fixedly connected to the pile body 1 through a prestressed reinforcement 31.

All be provided with end plate recess 81 on two end plate short sides 83 that upper end plate 8 and short side 12 correspond, be provided with two end plate recesses 81 on every end plate short side 83, end plate recess 81 link up upper and lower terminal surface of upper end plate 8 to communicate with cell body 2, and the cross-section of end plate recess 81 is the same with cell body 2 cross-section.

The foregoing is directed to embodiments of the present application, which are not limited thereto, but rather to any modification and equivalents thereof, which fall within the spirit and scope of the claims.

Claims

1. A rectangular pile is characterized in that: including pile body (1), the cross section of pile body (1) be the rectangle pile body (1) on two relative sides respectively be provided with cell body (2), cell body (2) set up along the direction of height downwardly extending of pile body (1) from the up end of pile body (1), and the central plane symmetry setting that is on a parallel with two sides at pile body (1) central line place of cell body (2) on two sides.

2. A rectangular pile according to claim 1, characterised in that: the rectangle of pile body (1) cross section includes the long limit that two symmetries set up and the minor face that two symmetries set up, cell body (2) set up on long side (11) that two long limits correspond or set up on short side (12) that two minor faces correspond.

3. A rectangular pile according to claim 1, characterised in that: the length of the groove body (2) is 1/2 to 2/3 of the height of the pile body (1).

4. A rectangular pile according to claim 1, characterised in that: the tank body (2) is an elliptic arc tank.

5. A rectangular pile according to claim 1, characterised in that: four corners of the pile body (1) are provided with chamfer structures.

6. A rectangular pile according to claim 5, characterised in that: the chamfer structure comprises transition arcs (4) arranged at four corners of the pile body (1), and the transition arcs (4) are in the shape of one section of an ellipse or a parabola.

7. A rectangular pile according to claim 1, characterised in that: a reinforcement cage (3) is arranged in the pile body (1), the reinforcement cage (3) comprises prestressed reinforcements (31) and spiral stirrups (32), and the spiral stirrups (32) are spirally wound on the prestressed reinforcements (31); the spiral stirrup (32) is arranged into an encrypted area (33) at two ends of the pile body (1) along the length direction, the spiral stirrup (32) is arranged into a non-encrypted area (34) between the two encrypted areas (33), and the stirrup distance of the spiral stirrup (32) in the encrypted area (33) is smaller than the screw pitch in the non-encrypted area (34).

8. A rectangular pile according to claim 1, characterised in that: the pile body (1) is provided with a drain pipe (6), and the drain pipe (6) penetrates through two side faces, adjacent to the side face provided with the groove body (2), of the pile body (1).

9. A rectangular pile according to claim 8, characterised in that: the number of the drain pipes (6) is 3 along the height direction of the pile body (1).

10. A rectangular pile according to any one of claims 1 to 9, characterised in that: the upper end of pile body (1) be provided with upper end plate (8), be provided with lower end plate (9) at the lower extreme of pile body (1) upper end plate (8) all be provided with corresponding end plate recess (81) of cell body (2) with two sides that cell body (2) is corresponding, end plate recess (81) link up the upper and lower terminal surface of upper end plate (8) to communicate with cell body (2).

11. A rectangular pile according to claim 1, characterised in that: the pile body (1) on still be provided with hollow column hole (5), hollow column hole (5) axis with the axis coincidence of pile body (1), just hollow column hole (5) run through the upper and lower terminal surface of pile body (1).