Prestressed ribbed fin edge pile

Abstract

The utility model provides a prestressed ribbed fin edge pile, which relates to the technical field of riverway support piles and comprises a plate-shaped soil retaining panel and a plate-shaped ribbed column. The ribbed columns are fixedly arranged on the plate face of one side of the soil retaining panel. The soil retaining panel and the ribbed column are integrated and are prefabricated and poured into a T shape in a factory; the plate face, where the ribbed columns are fixed, of the soil retaining face plate is a soil retaining face. The soil retaining surface is a plane; the surface opposite to the soil retaining surface is a water retaining surface; the water retaining surface is a cambered surface; the cambered surface of the water retaining surface is a convex surface; and the projection of the outermost convex surface of the convex surface of the water retaining surface on the plane of the soil retaining surface coincides with the position for fixing the ribbed column. According to the prestressed ribbed fin side pile, the problems that in the prior art, a side pile is prone to being bent and even broken in the using process, and the service life is short are solved, the pressure borne by the side pile from water flow and soil can be reduced, and the service life of the side pile is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of river support piles, in particular to a prestressed ribbed edge pile. Background Art

[0002] The traditional precast revetment retaining forms for rivers are generally circular piles or square piles. The side piles are strip-shaped and are inserted into the bottom of the river in a vertically extending posture of the strip shape to complete the assembly of one side pile. When the circular pile or square pile is used for foundation treatment, the cross-sectional compressive effect of the circular pile or square pile can be fully exerted. However, when the side pile is used as a retaining structure for a water conservancy revetment, it is mainly subjected to horizontal force and shear force. The cross-sectional moment of inertia of the circular pile or square pile is not reasonable, resulting in the flexural rigidity of the side piles with the same size of the retaining surface and the same material used being relatively small, whether they are circular piles or square piles. Moreover, if the unreasonable structural distribution only fixes the side piles by inserting the pile bottom into the foundation, the pile top is prone to excessive displacement under the action of horizontal force. Therefore, these side piles are unstable and prone to bending during use.

[0003] In the prior art, a permeable T-shaped pile disclosed in Chinese Patent Application No. 201420121343.9 discloses a specific structure of a T-shaped pile. A ribbed column is arranged on the side of the water retaining panel facing the soil, and the ribbed column is used to improve the structural strength of the water retaining panel. Its first panel 1 is the water retaining panel, its web is the ribbed column, and the extending direction of the side pile of the T-shaped pile is the height of the T-shaped pile. After actual installation, the height direction of the T-shaped pile is vertically fixed; the length of the water retaining panel is perpendicular to the height, and the surfaces surrounded by the length and height of the water retaining panel face the river water and the soil respectively.

[0004] However, the permeable T-shaped pile has defects: during use, stress concentration occurs at the connection between the water retaining panel and the ribbed column. Since the T-shaped pile is subjected to water flow and soil pressure, when the pressure is too large, it may cause the connection between the water retaining panel and the ribbed column of the T-shaped pile to break, resulting in a short service life. Summary of the Utility Model

[0005] In view of the above technical problems, the prestressed ribbed edge pile provided by the utility model can reduce the pressure on the side pile from water flow and soil and extend the service life of the side pile.

[0006] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0007] The prestressed ribbed wing-edge pile provided by the present utility model comprises a plate-shaped retaining panel and a plate-shaped ribbed column; the ribbed column is fixedly arranged on one side surface of the retaining panel; the retaining panel and the ribbed column are integrally cast into a T shape; the surface of the retaining panel where the ribbed column is arranged is the retaining surface; the retaining surface is a plane; the opposite surface of the retaining surface is the water-retaining surface; the water-retaining surface is an arc surface; the arc surface of the water-retaining surface is a convex surface; the projection of the outermost convex point of the convex surface of the water-retaining surface on the plane of the retaining surface coincides with the position where the ribbed column is fixed.

[0008] The prestressed ribbed wing-edge pile provided by the present utility model, preferably, further comprises a cuboid plate-shaped ribbed wing-edge; the dimension of the ribbed column in the vertical direction is the height of the ribbed column; the dimension between the two plate surfaces of the plate-shaped ribbed column is the thickness of the ribbed column; the dimension perpendicular to both the height and the thickness of the ribbed column is the length of the ribbed column; the dimension of the ribbed wing-edge in the vertical direction is the height of the ribbed wing-edge; the dimension between the two plate surfaces of the plate-shaped ribbed wing-edge is the thickness of the ribbed wing-edge; the dimension perpendicular to both the height and the thickness of the ribbed wing-edge is the length of the ribbed wing-edge; the length of the plate surface of the ribbed wing-edge is greater than the plate thickness of the ribbed column; the ribbed wing plate is fixed on the ribbed column; the plate surface of the ribbed wing-edge is parallel to the retaining surface.

[0009] The prestressed ribbed wing-edge pile provided by the present utility model, preferably, at the center of the plate surface of the ribbed wing-edge, parallel to the height of the ribbed wing-edge and coinciding with the midpoint of the length of the ribbed wing-edge, is the center of the plate surface of the ribbed wing-edge; the ribbed column is fixed at the center of the plate surface; the ribbed wing-edge and the ribbed column are integrally formed.

[0010] The prestressed ribbed wing-edge pile provided by the present utility model, preferably, the connection between the ribbed wing-edge and the ribbed column is transitioned by an inclined surface; the angle between the inclined surface and the surface formed by the length and the height of the ribbed column is 144°.

[0011] The prestressed ribbed wing-edge pile provided by the present utility model, preferably, the connection between the retaining panel and the ribbed column is transitioned by an arc.

[0012] The prestressed ribbed wing-edge pile provided by the present utility model, preferably, mortise buckles and tenon buckles are respectively arranged on both wings of the retaining panel in the height direction; the mortise buckles and the tenon buckles can be connected and cooperated with each other for fixation.

[0013] The prestressed ribbed wing-edge pile provided by the present utility model, preferably, chamfers are arranged on both sides of the surface of the ribbed wing-edge facing away from the ribbed column in the height direction of the ribbed wing-edge.

[0014] The prestressed ribbed wing-edge pile provided by the present utility model, preferably, the length of the retaining panel ≥ 500 mm; the thickness of the thinnest part of the retaining panel ≥ 120 mm.

[0015] The prestressed ribbed wing-edge pile provided by the present utility model, preferably, the length of the ribbed column ≥ 200 mm; the thickness of the ribbed column ≥ 100 mm.

[0016] The prestressed ribbed wing-edge pile provided by the present utility model, preferably, the length of the ribbed wing-edge ≥ 150 mm; the thickness of the ribbed wing-edge ≥ 100 mm.

[0017] The above technical solution has the following advantages or beneficial effects:

[0018] The present utility model provides a prestressed ribbed wing-edge pile, which relates to the technical field of river support piles and includes a plate-shaped retaining panel and a plate-shaped ribbed column; the ribbed column is fixedly arranged on one side surface of the retaining panel; the retaining panel and the ribbed column are integrally cast into a T shape; the surface of the retaining panel where the ribbed column is arranged is the retaining surface; the retaining surface is a plane; the opposite surface of the retaining surface is the water-retaining surface; the water-retaining surface is an arc surface; the arc surface of the water-retaining surface is a convex surface; the outermost convex point of the convex surface of the water-retaining surface projected on the plane of the retaining surface coincides with the position where the ribbed column is fixed. The prestressed ribbed wing-edge pile provided by the present utility model solves the problems in the prior art that the edge pile is prone to bending or even breaking during use and has a short service life, and can reduce the pressure exerted on the edge pile by water flow and soil, and extend the service life of the edge pile. Description of the Drawings

[0019] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, the present utility model and its features, shape and advantages will become more obvious. The same reference numerals indicate the same parts in all the drawings. The drawings are not deliberately drawn to scale, and the focus is on showing the gist of the present utility model.

[0020] Figure 1 It is a schematic diagram of the overall structure of the prestressed ribbed wing-edge pile provided by Embodiment 1 of the present utility model.

[0021] Figure 2 It is a schematic diagram of the relationship between the flow of water and the position of the edge pile when the water flows along the river during the use of the prestressed ribbed wing-edge pile provided by Embodiment 1 of the present utility model.

[0022] Figure 3 It is a schematic diagram of the direction of the pressure that the soil may exert on the edge pile during the use of the prestressed ribbed wing-edge pile provided by Embodiment 1 of the present utility model. Detailed Embodiments

[0023] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. It should be noted that the terms used in the present utility model are only for describing specific embodiments, rather than intending to limit the exemplary embodiments according to the present application.

[0024] The following will describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Therefore, the detailed description of the embodiments of the present utility model provided in the following drawings is not intended to limit the scope of the claimed present utility model, but only represents the selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1:

[0026] After the side piles used for riverbank revetment are vertically inserted into the river bottom and fixed, they will be subjected to great pressure from flowing water and pressure from the soil. These pressures are likely to cause structural damage to the side piles and reduce the service life of the side piles. To extend the service life of the side piles, the prestressed ribbed side pile provided in Embodiment 1 of the present utility model, as Figures 1 to 3 shown, includes a plate-shaped retaining panel 1 and a plate-shaped ribbed column 2; the ribbed column 2 is fixedly arranged on one side surface of the retaining panel 1; the retaining panel 1 and the ribbed column 2 are integrally cast into a T shape; the plate surface of the retaining panel 1 for fixing the ribbed column 2 is the retaining surface 11; the retaining surface 11 is a plane; the opposite surface of the retaining surface 11 is the water-facing surface 12; the water-facing surface 12 is an arc surface; the arc surface of the water-facing surface is a convex surface; the projection of the outermost convex point of the convex surface of the water-facing surface 12 on the plane of the retaining surface 11 coincides with the position of the fixed ribbed column 2.

[0027] When the prestressed ribbed wing-edge pile provided in Embodiment 1 of the present utility model works, the retaining panel 1 and the ribbed column 2 are inserted into the bottom of the river channel at the same time. The water-facing surface 12 of the retaining panel 1 faces the river, and the soil-facing surface 1 of the retaining panel faces the soil on the river bank. The ribbed column 2 is inserted into the soil. Then, the soil-facing surfaces 1 of multiple prestressed ribbed wing-edge piles are coplanar and are arranged in contact with each other to form a complete bank retaining support. For the prestressed ribbed wing-edge pile provided in this embodiment, if only the retaining panel 1 is inserted into the bottom of the river channel, the part of the water-facing surface 12 of the retaining panel 1 outside the foundation will be impacted by the flowing water. The flowing water usually flows horizontally, so a horizontal force will be applied to the water-facing surface 12. When the horizontal force applied by the flowing water to the water-facing surface 12 is too large, the retaining panel 1 is likely to be sheared horizontally and (relative to the part inserted into the foundation) bent or even broken. The ribbed column 2 plays the role of enhancing the bending resistance of the retaining panel 1, which is also the effect that the existing T-shaped pile can achieve. Different from the conventional T-shaped pile in the prior art, in this embodiment, the surface of the retaining panel 1 facing the river channel is set as a convex arc surface. The arc surface has the effect of slowing down the flow velocity of the water on the bank slope, thereby reducing the scouring of the pile-soil interface by the water flow (if the arc surface edge piles are arranged on both sides of the river channel, the flowing water that flows along the extension direction of the river channel and abuts against the river bank will slow down due to the obstruction of these arc surfaces; multiple edge piles will form a wavy river bank, and the connection surface between the edge piles is at the trough position of the wavy river bank. The flowing water flowing horizontally along the river bank will be blocked and slowed down by the wave crest of the wavy river bank. Therefore, the flow velocity of the water at the trough can be reduced, so the scouring of the pile-soil interface by the water flow can be reduced, and the erosion of the connection surface between the edge piles by the flowing water can be reduced, preventing the edge pile connection from being eroded and unable to normally block the flowing water and soil) so as to extend the service life of the pile body. For the water flow directly flowing towards the edge pile (at the bend of the river, the flowing water will first contact the river bank and turn), the most protruding part of the water-facing surface 12 will contact the water flow first. The most protruding part of this water-facing surface 12 is followed by the ribbed column 2. When the protruding part of the water-facing surface 12 is subjected to the horizontal pressure from the flowing water, the direction of the pressure line passes through the ribbed column 2. This enables the ribbed column 2 to effectively share the pressure from the flowing water for the retaining panel 1. Compared with the flat water-facing surface in the prior art, this embodiment can reduce the stress at the connection between the retaining panel 1 and the ribbed column 2, thereby reducing the possibility of the edge pile breaking.

[0028] The prestressed ribbed wing-edge pile provided by the present utility model solves the problems in the prior art that the edge pile is prone to bending or even breaking during use and has a short service life. The structure provided in the embodiment of the present utility model can reduce the pressure on the edge pile from the water flow and the soil, and extend the service life of the edge pile.

[0029] To reduce the pressure from the soil on the side pile, as a preferred solution, in this embodiment, it further includes a plate-shaped ribbed fin 3; the vertical dimension of the ribbed column 2 is the height of the ribbed column 2; the dimension between the two plate surfaces of the plate-shaped ribbed column 2 is the thickness of the ribbed column 2; the dimension perpendicular to both the height and thickness of the ribbed column 2 is the length of the ribbed column 2; the vertical dimension of the ribbed fin 3 is the height of the ribbed fin 3; the dimension between the two plate surfaces of the plate-shaped ribbed fin 3 is the thickness of the ribbed fin 3; the dimension perpendicular to both the height and thickness of the ribbed fin 3 is the length of the ribbed fin 3; the length of the plate surface of the ribbed fin 3 is greater than the plate thickness of the ribbed column 2; the ribbed fin 3 is fixed on the ribbed column 2; the plate surface of the ribbed fin 3 is parallel to the retaining surface 11. The length of the ribbed fin 3 is longer than the thickness of the ribbed column 2. Therefore, the ribbed fin 3 makes the overall side pile in the shape of "I"; after the side pile is installed, the ribbed fin 3 is inside the soil because both the ribbed fin 3 and the ribbed column 2 are arranged on the side of the retaining surface 11 of the retaining panel 1. The ribbed fin 3 can block part of the soil, reducing the direct pressure of the soil on the retaining panel 1 (such as Figure 3 ), thus reducing the pressure on the retaining panel 1 that actually blocks the soil and water flow inside the side pile, and preventing the retaining panel 1 from being bent and aged due to excessive pressure; in addition, the ribbed fin 3 can also enhance the lateral stability of the side pile. After the ribbed fin 3 is inserted into the soil, the contact area between the part of the whole side pile close to the soil side and the soil increases. Therefore, the soil restricts more degrees of freedom of the side pile, making it difficult for the side pile to change its posture.

[0030] As a preferred solution, in this embodiment, at the center of the plate surface of the ribbed fin 3, parallel to the height of the ribbed fin 3 and coinciding with the midpoint of the length of the ribbed fin 3, is the center of the plate surface of the ribbed fin 3; the ribbed column 2 is fixed at the center of the plate surface; the ribbed fin 3 and the ribbed column 2 are integrally formed. The advantage of fixing the ribbed column 2 at the center of the plate surface is that the ribbed fin 3 and the retaining panel 1 are axisymmetrically distributed with respect to the central plane of the two plate surfaces of the ribbed column 2. The axisymmetry of the whole side pile can, on the one hand, simplify the calculation and quickly and accurately determine the bearing capacity and stability of the pile; on the other hand, the function of the ribbed fin 3 is to share the soil pressure received by the retaining panel 1. The axisymmetric structure enables the whole side pile to evenly distribute the load, avoiding excessive stress concentration, and preventing the parts of the ribbed fin 3 on both sides of the ribbed column 2 from receiving overly uneven soil pressure, which may cause bending or even fracture at the connection between the ribbed fin 3 and the ribbed column 2, thereby affecting the posture of the retaining panel 1; by reducing the soil pressure received by the retaining panel 1, the possibility of damage to the retaining panel 1 is reduced, thus extending the service life of the side pile.

[0031] As a preferred solution, in this embodiment, the connection between the ribbed wing edge 3 and the ribbed column 2 adopts a bevel transition; the angle between the bevel, the length and the height of the ribbed column is 144°; the connection between the retaining panel 1 and the ribbed column 2 adopts an arc transition. The inclined surface transition can reduce the stress concentration between the ribbed wing edge 3 and the ribbed column 2: when the ribbed wing edge 3 is subjected to a force perpendicular to the ribbed wing edge 3 plate surface and not toward the ribbed column 2, the force of the part other than the connection between the ribbed wing edge 3 and the ribbed column 2 will be transmitted and concentrated at the ribbed wing edge 3 and the ribbed column 2. If the connection between the ribbed wing edge 3 and the ribbed column 2 is very small, the ribbed wing edge 3 will easily bend and deform relative to the ribbed column 2 when subjected to force. The use of an inclined surface transition structure can increase the connection area between the ribbed wing edge 3 and the ribbed column 2. The larger the connection area, the smaller the force per unit area, and the less likely it is to deform. Therefore, the inclined surface transition can enhance the connection stability between the ribbed wing edge 3 and the ribbed column 2. Since the ribbed wing edge piles need to be clamped and assembled by a machine when they are assembled into the river channel, for the structure provided in this embodiment, The machine clamps from both ends of the ribbed wing edge (both ends perpendicular to the length of the ribbed wing edge), so the inclined surface also needs to share the clamping force (the force perpendicular to the thickness direction of the ribbed wing edge) during the clamping process to the ribbed column 2, so that the ribbed column 2 can offset part of the clamping force from the machine, thereby reducing the risk of the ribbed wing edge 3 being clamped off. The angle of the inclined surface and the ribbed column surface is 144°, which is the preferred solution selected from the structures of ribbed wing edge piles with various angles; the arc transition can reduce the stress concentration between the retaining panel 1 and the ribbed column, and enhance the connection stability between the retaining panel 1 and the ribbed column 2; the inclined surface transition and the arc transition are both to increase the strength of the overall structure of the edge pile, so that the connection relationship between the retaining panel 1, the ribbed column 2 and the ribbed wing edge 3 is stable, thereby maintaining the shear resistance of the overall structure of the edge pile (horizontal direction).

[0032] In order to further reduce the possibility of contact between the flowing water and the soil on both sides of the retaining panel 1, in this embodiment, the two wings in the height direction of the retaining panel 1 are respectively provided with a female tenon buckle 13 and a male tenon buckle 14; the female tenon buckle 13 and the male tenon buckle 14 can be connected and fixed to each other. The female tenon buckle 13 and the male tenon buckle 14 belong to the prior art, and the male tenon buckle 14 is inserted into the female tenon buckle 13 to tightly connect the two side piles; through the male and female tenon-tenon connection, the shear force of the soil and flowing water can be effectively resisted, and the mutual displacement between the two adjacent side piles can be reduced; at the same time, the male and female tenon-tenon connection has a certain elasticity, which can adapt to the slight deformation between the pile bodies and maintain the stability of the structure.

[0033] As a preferred solution, in this embodiment, chamfers are provided on the surface of the ribbed fin edge 3 facing away from the ribbed column 2 and on both sides in the height direction of the ribbed fin edge 3. When the ribbed fin edge pile is transported, it needs to be stacked. The ribbed fin edge 3 of the right-angled ribbed fin edge pile is easily damaged at the corners. After setting the chamfers, the original right-angled place becomes a flat surface. When contacting other components, there will be a larger contact surface and the pressure will be reduced, so it is not easily damaged.

[0034] As a preferred solution, in this embodiment, the length of the retaining panel 1 ≥ 500 mm; the thickness of the thinnest part of the retaining panel 1 ≥ 120 mm; the length of the ribbed column 2 ≥ 200 mm; the thickness of the ribbed column 2 ≥ 100 mm; the length of the ribbed fin edge 3 ≥ 150 mm; the thickness of the ribbed fin edge 3 ≥ 100 mm.

[0035] In addition, the water-retaining surface part of the retaining panel 1 can be treated to imitate stone or wood to enhance the landscape effect of the riverbank.

[0036] In summary, the present utility model provides a prestressed ribbed fin edge pile, which relates to the technical field of river channel support piles and includes a plate-shaped retaining panel and a plate-shaped ribbed column; the ribbed column is fixedly arranged on one side plate surface of the retaining panel; the retaining panel and the ribbed column are integrally cast into a T shape; the plate surface of the retaining panel where the ribbed column is arranged is the retaining surface; the retaining surface is a flat surface; the opposite surface of the retaining surface is the water-retaining surface; the water-retaining surface is an arc surface; the arc surface of the water-retaining surface is a convex surface; the outermost convex point of the convex surface of the water-retaining surface projected on the flat surface of the retaining surface coincides with the position where the ribbed column is fixed. The prestressed ribbed fin edge pile provided by the present utility model solves the problems in the prior art that the side pile is easily bent or even broken during use and has a short service life, and can reduce the pressure on the side pile from water flow and soil, and extend the service life of the side pile.

[0037] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present utility model by the same token.

Claims

1. A prestressed ribbed finned pile, comprising a plate-shaped retaining panel and a plate-shaped ribbed column; the ribbed column is fixedly arranged on one side surface of the retaining panel; the retaining panel and the ribbed column are integrally cast into a T shape; It is characterized in that The surface of the retaining panel that fixes the ribbed column is the retaining surface; The retaining surface is a plane; The opposite surface of the retaining surface is the water-retaining surface; The water-retaining surface is an arc surface; The arc surface of the water-retaining surface is a convex surface; The projection of the outermost convex point of the convex surface of the water-retaining surface on the plane of the retaining surface coincides with the position where the ribbed column is fixed.

2. The prestressed ribbed edge pile according to claim 1, wherein It further includes a cuboid plate-shaped ribbed fin; The dimension of the ribbed column in the vertical direction is the height of the ribbed column; the dimension between the two plate surfaces of the plate-shaped ribbed column is the thickness of the ribbed column; the dimension perpendicular to both the height and thickness of the ribbed column is the length of the ribbed column; The dimension of the ribbed fin in the vertical direction is the height of the ribbed fin; the dimension between the two plate surfaces of the plate-shaped ribbed fin is the thickness of the ribbed fin; the dimension perpendicular to both the height and thickness of the ribbed fin is the length of the ribbed fin; The length of the plate surface of the ribbed fin is greater than the plate thickness of the ribbed column; The ribbed fin is fixed on the ribbed column; the plate surface of the ribbed fin is parallel to the retaining surface.

3. The prestressed ribbed finned pile according to claim 2, wherein, At the center of the plate surface of the ribbed fin, parallel to the height of the ribbed fin and coinciding with the midpoint of the length of the ribbed fin, is the center of the plate surface of the ribbed fin; the ribbed column is fixed at the center of the plate surface; the ribbed fin and the ribbed column are integrally formed.

4. The prestressed ribbed edge pile according to claim 3, wherein, The connection between the ribbed fin and the ribbed column is transitioned by an inclined plane; the angle between the inclined plane and the plane formed by the length and height of the ribbed column is 144°.

5. The prestressed ribbed edge pile according to claim 1, wherein, The connection between the retaining panel and the ribbed column is transitioned by an arc.

6. The prestressed ribbed edge pile according to claim 1, characterized in that, On both wings in the height direction of the retaining panel, a female mortise buckle and a male mortise buckle are respectively arranged; the female mortise buckle and the male mortise buckle can be connected and cooperated to be fixed.

7. The prestressed ribbed wing-edge pile according to claim 2, characterized in that, On the surface of the ribbed fin facing away from the ribbed column, chamfers are arranged on both sides in the height direction of the ribbed fin.

8. The prestressed ribbed wing-edge pile according to claim 5, characterized in that, The length of the retaining panel ≥ 500 mm; the thickness of the thinnest part of the retaining panel ≥ 120 mm.

9. The prestressed ribbed fin-edge pile according to claim 2, wherein The length of the ribbed column ≥ 200 mm; the thickness of the ribbed column ≥ 100 mm.

10. The prestressed ribbed edge pile according to claim 2, characterized in that, The length of the ribbed fin ≥ 150 mm; the thickness of the ribbed fin ≥ 100 mm.

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