Anti-scouring pier pile foundation structure

Abstract

The anti-scouring pier pile foundation structure comprises an upper pile and a lower pile, a cover beam is arranged at the top of the upper pile, a plurality of first longitudinal main reinforcements are evenly distributed on the circumference of the inner edge of the upper pile, a plurality of second longitudinal main reinforcements and a plurality of third longitudinal main reinforcements are evenly distributed on the circumference of the inner edge of the lower pile, and the second longitudinal main reinforcements and the third longitudinal main reinforcements are arranged at intervals. The lower part of the first longitudinal main reinforcement extends into the lower pile and is welded with the upper parts of the second longitudinal main reinforcement and the third longitudinal main reinforcement in an overlapping manner, a plurality of first transverse reinforcing stirrups are welded on the inner and outer walls of the first longitudinal main reinforcement from top to bottom, and a plurality of second transverse reinforcing stirrups are welded on the inner and outer walls of the second longitudinal main reinforcement and the third longitudinal main reinforcement from top to bottom; an anti-scouring assembly is arranged on the outer side of the lower pile and comprises a pile casing arranged on the outer wall of the lower pile, an anchoring assembly is arranged at the bottom of the pile casing, and an anti-scouring plate is arranged on the outer wall of the pile casing. The pier pile foundation is good in anti-scouring effect, the safety of the pier pile foundation is improved, and the service life of the pier pile foundation is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge engineering technical field especially relates to a kind of scouring resistance pier pile foundation structure. BACKGROUND

[0002] In bridge engineering, the stability of pier is crucial to the safety of the whole bridge. At present, the reinforcement cage of pier pile foundation is mostly common cylindrical reinforcement cage, which is relatively weak in resisting lateral force (such as water impact, wind force, earthquake, etc.), and is prone to stress concentration phenomenon when stressed, with general structural stability. At the same time, due to river scouring, soaking and other reasons, the pier pile foundation is easily eroded, leading to rapid deterioration of its durability and even structural damage, resulting in reduced safety performance and service life. SUMMARY

[0003] The utility model aims at solving the deficiency in prior art, and provides a kind of scouring resistance pier pile foundation structure.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: a kind of scouring resistance pier pile foundation structure, including upper pile, lower pile, upper pile top is equipped with bent cap, upper pile inside edge circumference is uniformly distributed with a plurality of first longitudinal main muscle, lower pile inside edge circumference is uniformly distributed with a plurality of second longitudinal main muscle and third longitudinal main muscle, second longitudinal main muscle and third longitudinal main muscle are arranged at intervals, first longitudinal main muscle lower part is inserted into lower pile and is overlapped with the upper part of second longitudinal main muscle, third longitudinal main muscle and is welded, first longitudinal main muscle inner and outer wall is welded with a plurality of first transverse reinforcing hoop from top to bottom, second longitudinal main muscle, third longitudinal main muscle inner and outer wall is welded with a plurality of second transverse reinforcing hoop from top to bottom, a plurality of second longitudinal main muscle outer wall is welded with positioning reinforcement, positioning reinforcement is uniformly distributed with and second transverse reinforcing hoop one-to-one correspondence, first longitudinal main muscle, second longitudinal main muscle, third longitudinal main muscle outer wall is welded with spiral hoop; Lower pile outside is equipped with scouring resistance component, scouring resistance component includes setting in the lower pile outer wall of casing, casing bottom is equipped with anchoring component, casing outer wall is equipped with anti-scouring board.

[0005] In particular, the top of the first longitudinal main muscle is inserted into the bent cap and is inclined outward.

[0006] In particular, the bottom of the second longitudinal main muscle is inserted into the bottom of the lower pile and is inclined inward.

[0007] In particular, the positioning reinforcement is a vertical trapezoid.

[0008] In particular, the anchoring component includes an anchoring plate provided at the bottom of the casing outer wall, and the anchoring plate is provided with an anchor rod inserted into the soil layer.

[0009] In particular, the anti-scouring board is a rectangular plate, and a plurality of rectangular plates are uniformly distributed and vertically arranged on the casing outer wall.

[0010] Particularly, the impact protection plate is a spiral plate, and the spiral plate is spirally arranged on the outer wall of the casing.

[0011] Particularly, a gabion retaining wall is arranged around the bottom of the outer wall of the casing.

[0012] The pile foundation structure has the advantages that the first longitudinal main reinforcement, the second longitudinal main reinforcement, the third longitudinal main reinforcement, the first transverse reinforcing hoop reinforcement, the second transverse reinforcing hoop reinforcement, the positioning reinforcement and the spiral hoop reinforcement are arranged, the sectional type lap-fixed reinforcement cage is adopted, compared with a traditional cylindrical reinforcement cage, the overall stability and the ability to resist lateral force of the structure can be effectively increased, local stress concentration is avoided, the overall bearing capacity and durability, strength and stability of the structure are good, the scour resistance of the bridge pier pile foundation is good through the arrangement of the scour resistance assembly, the safety of the bridge pier pile foundation is improved, and the service life of the bridge pier pile foundation is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 FIG. 1 is a schematic view of a pile foundation structure of the utility model;

[0014] Figure 2 FIG. 2 is a schematic view of a first longitudinal main reinforcement structure of the utility model;

[0015] Figure 3 FIG. 3 is a schematic view of a second longitudinal main reinforcement structure of the utility model;

[0016] Figure 4 FIG. 4 is a schematic view of a third longitudinal main reinforcement structure of the utility model;

[0017] Figure 5 FIG. 5 is a schematic view of a positioning reinforcement structure of the utility model;

[0018] Figure 6 FIG. 6 is a schematic view of a scour resistance assembly structure of the utility model;

[0019] Figure 7 FIG. 7 is a schematic view of another scour resistance assembly structure of the utility model;

[0020] In the drawing: 1 is an upper pile; 2 is a lower pile; 3 is a bent cap; 4 is a first longitudinal main reinforcement; 5 is a second longitudinal main reinforcement; 6 is a third longitudinal main reinforcement; 7 is a first transverse reinforcing hoop reinforcement; 8 is a second transverse reinforcing hoop reinforcement; 9 is a positioning reinforcement; 10 is a spiral hoop reinforcement; 11 is a casing; 12 is an impact protection plate; 13 is an anchoring plate; 14 is an anchor rod;

[0021] The utility model will be described below in combination with embodiments of the utility model and with reference to the drawings. DETAILED DESCRIPTION

[0022] The utility model will be described below in combination with embodiments of the utility model and with reference to the drawings.

[0023] AsFigures 1-7 As shown, an anti-scour bridge pier pile foundation structure includes an upper pile 1 and a lower pile 2. The upper pile 1 is topped with a cap beam 3. Several first longitudinal main bars 4 are evenly distributed around the inner edge of the upper pile 1. The tops of the first longitudinal main bars 4 extend into the cap beam 3 and are inclined outwards. Several second longitudinal main bars 5 and third longitudinal main bars 6 are evenly distributed around the inner edge of the lower pile 2. The second longitudinal main bars 5 and third longitudinal main bars 6 are spaced apart. The bottoms of the second longitudinal main bars 5 extend into the bottom of the lower pile 2 and are inclined inwards. The lower parts of the first longitudinal main bars 4 extend into the lower pile 2 and are connected to the second longitudinal main bars 6. The upper part of the reinforcing bars 5 and 6 are overlapped and welded. The inner and outer walls of the first longitudinal main reinforcing bar 4 are welded with several first transverse reinforcing stirrups 7 from top to bottom. The inner and outer walls of the second longitudinal main reinforcing bars 5 and 6 are welded with several second transverse reinforcing stirrups 8 from top to bottom. The outer walls of several second longitudinal main reinforcing bars 5 are welded with positioning reinforcing bars 9. The positioning reinforcing bars 9 are vertical trapezoids. The positioning reinforcing bars 9 are evenly distributed around the circumference and correspond one-to-one with the second transverse reinforcing stirrups 8. The outer walls of the first longitudinal main reinforcing bars 4, the second longitudinal main reinforcing bars 5, and the third longitudinal main reinforcing bars 6 are all welded with spiral stirrups 10.

[0024] Specifically, by placing the first longitudinal main reinforcement 4 outwardly within the cap beam 3 and the second longitudinal main reinforcement 5 inwardly at the bottom of the lower pile 2, the overall stability and resistance to lateral forces of the structure can be effectively increased, which helps improve the stability of the bridge pier pile foundation when encountering natural disasters such as water flow impact or earthquakes. The overlapping welding between the first longitudinal main reinforcement 4, the second longitudinal main reinforcement 5, and the third longitudinal main reinforcement 6 can more effectively distribute and transfer loads, avoid local stress concentration, and thus improve the load-bearing capacity and durability of the entire structure. The use of the first transverse reinforcing stirrup 7 and the second transverse reinforcing stirrup 8 enhances the connection strength between the longitudinal main reinforcements, improves the overall stiffness of the structure, and helps resist the generation of deformation and cracks.

[0025] In one embodiment, such as Figure 6 As shown, an anti-scouring component is provided on the outer side of the lower pile 2. The anti-scouring component includes a casing 11 installed on the outer wall of the lower pile 2. An anchoring component is provided at the bottom of the casing 11. The anchoring component includes an anchoring plate 13 installed at the bottom of the outer wall of the casing 11. Anchor rods 14 inserted into the soil layer are provided on the anchoring plate 13. The anchoring component can enhance the fixing effect of the casing 11. An anti-scouring plate 12 is provided on the outer wall of the casing 11. The anti-scouring plate 12 is a rectangular plate, and several rectangular plates are evenly distributed around the circumference and vertically installed on the outer wall of the casing 11. Specifically, the rectangular plates can change the direction of water flow, reduce the direct impact of water flow on the casing 11, and at the same time promote the dispersion of water flow and reduce local scouring.

[0026] In another embodiment, such as Figure 7As shown, the outer side of the lower pile 2 is provided with an anti-scouring assembly, the anti-scouring assembly comprises a casing 11 arranged on the outer wall of the lower pile 2, the bottom of the casing 11 is provided with an anchoring assembly, the anchoring assembly comprises an anchoring plate 13 arranged on the outer wall of the casing 11, the anchoring plate 13 is provided with an anchor rod 14 inserted into the soil layer, the anchoring assembly can enhance the fixing effect of the casing 11, the outer wall of the casing 11 is provided with a scouring plate 12, the outer wall of the casing 11 is provided with the scouring plate 12, the scouring plate 12 is a spiral plate, and the spiral plate is spirally arranged on the outer wall of the casing 11. Specifically, the spacing and angle of the spiral plate can be adjusted according to the water flow velocity and scouring intensity to achieve the best protection effect; the spiral structure can change the direction of the water flow, so that the water flow flows along the path of the spiral plate, reducing the direct impact of the water flow on the casing 11, and the design can effectively disperse the water flow energy and reduce local scouring; the friction between the spiral plate and the water flow can slow down the water flow velocity, further reducing the scouring effect.

[0027] In another embodiment, the outer side of the lower pile 2 is provided with an anti-scouring assembly, the anti-scouring assembly comprises a casing 11 arranged on the outer wall of the lower pile 2, the bottom of the casing 11 is provided with an anchoring assembly, the anchoring assembly comprises an anchoring plate 13 arranged on the bottom of the outer wall of the casing 11, the anchoring plate 13 is provided with an anchor rod 14 inserted into the soil layer, the anchoring assembly can enhance the fixing effect of the casing 11, and the bottom of the outer wall of the casing 11 is provided with a gabion retaining wall. Specifically, the gabion retaining wall can form a physical barrier to reduce the direct impact of the water flow on the casing 11 and the surrounding soil, while promoting the dispersion of the water flow and reducing the scouring effect.

[0028] The utility model discloses a sectional type lap joint fixed reinforcement cage, compared with traditional cylindrical reinforcement cage, can effectively increase the overall stability and the ability of resisting lateral force of structure, avoid local stress concentration, the overall bearing capacity and durability, strength and stability of structure are good, through setting up anti-scouring assembly, make the bridge pier pile foundation anti-scouring effect is good, has improved the safety of bridge pier pile foundation, has prolonged the service life of bridge pier pile foundation.

[0029] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0030] In addition, the terms "first", "second" are only used for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0031] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] The present application has been described above in conjunction with the drawings, and it is obvious that the specific implementation of the present application is not limited by the above manner, as long as various improvements are made by using the method concept and technical solution of the present application, or directly applied to other occasions without improvement, all within the protection scope of the present application.

Claims

1. An erosion-resistant pier pile foundation structure, characterized by, The utility model relates to a pile foundation, including upper stake (1), lower stake (2), upper stake (1) top is equipped with bent cap (3), the inside edge circumference of upper stake (1) is equipped with a plurality of first longitudinal main muscle (4) evenly, the inside edge circumference of lower stake (2) is equipped with a plurality of second longitudinal main muscle (5) and third longitudinal main muscle (6) evenly, second longitudinal main muscle (5) and third longitudinal main muscle (6) are arranged at intervals, and the lower part of first longitudinal main muscle (4) is inserted into lower stake (2) and is overlapped and welded with the upper part of second longitudinal main muscle (5) and third longitudinal main muscle (6), a plurality of first transverse reinforcing hoop (7) are welded from top to bottom on the inner and outer wall of first longitudinal main muscle (4), a plurality of second transverse reinforcing hoop (8) are welded from top to bottom on the inner and outer wall of second longitudinal main muscle (5) and third longitudinal main muscle (6), a plurality of positioning reinforcing steel bars (9) are welded on the outer wall of second longitudinal main muscle (5), and the positioning reinforcing steel bars (9) are arranged in circle and correspond with second transverse reinforcing hoop (8) one by one, and spiral hoop (10) is welded on the outer wall of first longitudinal main muscle (4), second longitudinal main muscle (5) and third longitudinal main muscle (6).

2. An erosion-resistant pier pile foundation structure according to claim 1, wherein The top of first longitudinal main muscle (4) is inserted into bent cap (3) and is arranged outwardly inclined.

3. An erosion-resistant pier pile foundation structure according to claim 1, wherein The bottom of second longitudinal main muscle (5) is inserted into the bottom of lower stake (2) and is arranged inwardly inclined.

4. An erosion-resistant pier pile foundation structure according to claim 1, wherein Positioning reinforcing steel bar (9) is vertical trapezoid.

5. An erosion-resistant pier pile foundation structure according to claim 1, wherein The anchor assembly includes anchor plate (13) arranged on the bottom of the outer wall of casing (11), and anchor rod (14) is arranged on anchor plate (13) and inserted into the soil layer.

6. An erosion-resistant pier pile foundation structure according to claim 1, wherein The anti-scouring plate (12) is a rectangular plate, and a plurality of rectangular plates are arranged in circle and vertically on the outer wall of casing (11).

7. An erosion-resistant pier pile foundation structure according to claim 1, wherein The anti-scouring plate (12) is a spiral plate, and the spiral plate is spirally arranged on the outer wall of casing (11).

8. An erosion-resistant pier pile foundation structure according to claim 1, wherein The outer wall of casing (11) is provided with gabion retaining wall.

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