Round pile lug type retaining wall structure

Abstract

The utility model discloses a round pile lug type retaining wall structure. The retaining wall is a retaining structure for resisting horizontal thrust of lateral soil. The center lines of all the round piles are located on the same straight line, and rectangular protruding blocks are arranged on the two sides of the center of each round pile respectively. A prefabricated soil retaining plate is arranged between the two round piles, and the soil retaining plate is limited through the round piles on the two sides; longitudinal stress ribs and annular stirrups are arranged in the circular pile and connected in a binding mode. The longitudinal stress ribs are arranged along the boundary of the circular pile; the annular stirrups are arranged on the peripheries of the longitudinal stress ribs; reinforcing ribs are further arranged in the circular pile. The reinforcing ribs are arranged in the transverse direction and the longitudinal direction, the two ends of each reinforcing rib are bent around the longitudinal stress ribs, and the reinforcing ribs in the protruding blocks are annular reinforcing ribs. The convex blocks are reserved on the circular pile body, and then the prefabricated breast boards are sequentially inserted from top to bottom, so that positioning of the breast boards and the strength of the pile body are achieved, and the safety of the whole structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of roadbed retaining wall, specifically relates to a round pile lug formula retaining wall structure. BACKGROUND

[0002] The retaining wall is a retaining structure resisting lateral soil horizontal thrust, can better save land resources, improve the effect of collecting slope of high fill, deep excavation and steep slope terrain engineering, is widely applied to the roadbed supporting engineering of soil body collecting slope in railway, highway, urban road and other building fields. In the existing retaining wall structure, the slot is set up on the pile body, and the retaining plate is inserted in the slot. But the slot is set up on the pile body, can weaken the concrete section of the corresponding position of the pile body, is easy to cause the through crack under the action of external force, endangers the safety of structure. CONTENT OF UTILITY MODEL

[0003] In order to make up for the deficiency of prior art, the utility model provides a round pile lug formula retaining wall structure, realizes the positioning of retaining plate and the strength of pile body by reserving lug on the round pile body, improves the safety of overall structure.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme that:

[0005] A round pile lug formula retaining wall structure is characterized by:

[0006] Including multiple round piles, the center line of all round piles is located on the same straight line, and rectangular lugs are arranged on the two sides of the round pile center; the precast retaining plate is arranged between two round piles, and the precast retaining plate is limited by the two round piles;

[0007] The round pile is internally provided with longitudinal stress reinforcement and annular stirrup, and the longitudinal stress reinforcement and annular stirrup are bound and connected; the longitudinal stress reinforcement is arranged along the boundary of the round pile; and the annular stirrup is arranged on the periphery of the longitudinal stress reinforcement.

[0008] Further, the round pile is internally further provided with reinforcing bars.

[0009] Further, the reinforcing bars are arranged along the horizontal direction and the vertical direction, and the two ends are bent around the longitudinal stress reinforcement, and the reinforcing bars in the lug are annular reinforcing bars.

[0010] Further, the rectangular lugs on the two sides of the round pile are symmetrically arranged.

[0011] Further, the precast retaining plate is rectangular in cross section.

[0012] Further, the front vertical surface of the precast retaining plate coincides with the rear vertical surface of the lug, and the rear vertical surface of the precast retaining plate is arranged on the side of the soil body.

[0013] Furthermore, the precast retaining plate is provided with lifting holes.

[0014] Furthermore, the annular stirrups are arranged horizontally, with multiple stirrups arranged along the length of the pile.

[0015] The beneficial effects of this utility model are:

[0016] 1) This utility model uses the protrusions reserved in the round pile to insert the precast retaining plate from top to bottom, thereby realizing the positioning of the retaining plate and the strength of the pile body, improving the safety of the overall structure, facilitating construction, and having high economic value;

[0017] 2) The circular piles above the embankment ground or roadbed surface of this utility model are cast using vertical formwork, with additional reinforcing bars in both the transverse and longitudinal directions near the protrusions, which does not weaken the pile body itself and ensures the integrity of the pile body.

[0018] 3) This utility model can be applied to both embankment sections and cutting sections, and has a wide range of applications. Attached Figure Description

[0019] Figure 1 This is a front view of the circular pile lug retaining wall structure of this utility model;

[0020] Figure 2 This is a schematic diagram showing the connection between the retaining plate and the circular pile of this utility model;

[0021] Figure 3 This is a schematic diagram of the reinforcement of the circular pile of this utility model;

[0022] In the diagram, 1. Circular pile, 2. Precast retaining plate, 1-1. Reinforcing bar, 1-2. Circular stirrup, 1-3. Longitudinal reinforcing bar. Detailed Implementation

[0023] The present invention will now be described in detail with reference to specific embodiments.

[0024] This utility model provides a circular pile lug-type retaining wall structure. By pre-reserving protrusions on the circular pile body, and then inserting precast retaining plates from top to bottom, the pile body itself is not weakened, the structure has good stress resistance, and the positioning of the retaining plates and the strength of the pile body are achieved, thus improving the safety of the overall structure. The specific structure is as follows:

[0025] like Figure 1 , 2 As shown, this utility model includes multiple circular piles 1, the center lines of all circular piles 1 are located on the same straight line, rectangular protrusions are respectively provided on both sides of the center of the circular pile 1, and the rectangular protrusions on both sides of the circular pile 1 are symmetrically arranged; a precast retaining plate 2 is provided between two circular piles 1, and the precast retaining plate 2 is limited by the circular piles 1 on both sides.

[0026] The prefabricated retaining board 2 is rectangular in cross section, the front vertical surface of the prefabricated retaining board 2 is coincided with the rear vertical surface of the convex block, and the rear vertical surface of the prefabricated retaining board 2 is arranged on the side of the soil body.

[0027] As shown in Figure 3 The circular pile 1 is internally provided with longitudinal stress reinforcement 1-3 and annular stirrup 1-2, which are bound and connected; the longitudinal stress reinforcement 1-3 is arranged along the boundary of the circular pile 1; and the annular stirrup 1-2 is arranged on the periphery of the longitudinal stress reinforcement 1-3. The circular pile 1 is further internally provided with reinforcing bars 1-1. The reinforcing bars 1-1 are arranged in the transverse and longitudinal directions, and the two ends are bent around the longitudinal stress reinforcement 1-3; the reinforcing bars in the convex block are annular reinforcing bars. The annular stirrup 1-2 is horizontally arranged, and a plurality of annular stirrups 1-2 are arranged along the length direction of the pile.

[0028] The construction method of the utility model is as follows:

[0029] (1) The pile position is measured and laid out according to the design position, and the pile position ground is leveled. The pile positioning should be accurate, and the pile section size, center position and hole bottom elevation must meet the engineering quality evaluation acceptance standard. In construction, the construction error of the pile section size can only be positive, not negative, the concrete cover thickness of the main reinforcement is not less than 8 cm, and the verticality deviation should not be greater than 1.0%.(2) Before the formal construction of the circular pile, the pile test work must be carried out to test the suitability of the construction technology and determine the construction technical parameters.(3) The pile body reinforcement cage is integrally manufactured according to the design drawing requirements, and it is ensured that the pre-embedded connecting reinforcement is firmly connected with the longitudinal stress reinforcement of the pile body. After the drilling is completed, the formwork is erected above the ground to the pile top elevation, and the pile body pre-embedded reinforcement is extended through the formwork opening.(4) Before pouring the pile body concrete, the drilling hole is cleaned.(5) The concrete should be poured into the pile hole through the string barrel or guide pipe, and the bottom end of the string barrel or guide pipe should be 1-3 m lower than the concrete surface. The pile body concrete must be continuously poured and vibrated and compacted. In order to prevent the reinforcement cage from floating up, when the top surface of the poured concrete is about 1 m away from the bottom of the reinforcement cage, the pouring speed of the concrete should be reduced.(6) After the circular pile meets the design strength requirement, the prefabricated retaining board is inserted from top to bottom in turn.(7) The backfilling of the pile-slab wall is layered and tamped, and after the construction of the cast-in-place pile is completed, the pile foundation quality is detected by using the low strain method or the acoustic wave transmission method.

[0030] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection", "fixing" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] The contents of the present application are not limited to the embodiments listed, and any equivalent transformation of the technical solutions of the present application adopted by a person of ordinary skill in the art through reading the present application specification is covered by the claims of the present application.

Claims

1. A round pile lug type retaining wall structure, characterized in that: a plurality of round piles (1) are arranged on the same straight line, and rectangular protrusions are arranged on both sides of the center line of the round piles (1); a prefabricated retaining plate (2) is arranged between two round piles (1), and the prefabricated retaining plate (2) is limited by the two round piles (1) on both sides; a longitudinal stress bar (1-3) and a ring-shaped stirrup (1-2) are arranged inside the round pile (1), and the longitudinal stress bar (1-3) and the ring-shaped stirrup (1-2) are bound and connected; the longitudinal stress bar (1-3) is arranged along the boundary of the round pile (1); and the ring-shaped stirrup (1-2) is arranged on the periphery of the longitudinal stress bar (1-3).

2. A round pile lugs type retaining wall structure according to claim 1, characterized in that: The round pile (1) is further provided with a reinforcing bar (1-1) inside.

3. A round pile lugged retaining wall structure according to claim 2, characterised in that: The reinforcing bar (1-1) is arranged in the transverse and longitudinal directions, and the two ends are bent around the longitudinal stress bar (1-3); the reinforcing bar in the protrusion is a ring-shaped reinforcing bar.

4. A round pile lugged retaining wall structure according to claim 3, wherein: The rectangular protrusions on both sides of the round pile (1) are symmetrically arranged.

5. A round pile lugged retaining wall structure according to claim 4, wherein: The prefabricated retaining plate (2) has a rectangular cross section.

6. A round pile lugged retaining wall structure according to claim 5 wherein: The front facade of the prefabricated retaining plate (2) coincides with the rear facade of the protrusion, and the rear facade of the prefabricated retaining plate (2) is arranged on the soil side.

7. A round pile lugged retaining wall structure according to claim 6 wherein: The prefabricated retaining plate (2) is provided with a lifting hole.

8. A round pile lugged retaining wall structure according to claim 7, wherein: The ring-shaped stirrup (1-2) is arranged horizontally and a plurality of ring-shaped stirrups (1-2) are arranged along the length direction of the pile.

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