Retaining wall hanging plate connecting structure
By using U-shaped connecting steel bars and capping beam structure that tightly integrate the circular piles and cast-in-place retaining slabs, the problem of insufficient connection strength in external pile-slab walls was solved, achieving efficient and stable construction results.
Patent Information
- Application Number
- CN202423267480.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The existing external pile-slab wall has insufficient connection strength, complex construction procedures, and low construction efficiency.
By tightly integrating the pre-reinforced steel bars of the circular piles with the cast-in-place retaining slab, welding the U-shaped connecting steel bars with the longitudinal reinforcing steel bars, setting the cap beam and drainage holes, and combining the filter layer and concrete foundation, the connection structure is optimized.
It improves connection strength and construction efficiency, ensures structural stability, provides good drainage, simplifies construction, increases mechanization, and reduces project costs.
Smart Images
Figure CN223577166U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of roadbed retaining wall, specifically relates to a retaining wall hanging plate connecting structure. BACKGROUND
[0002] In order to avoid basic farmland, save land, high embankment generally needs to be collected. Since the pile board wall has outstanding retaining effect, it is widely used in high embankment engineering. Among them, the operation of the externally-hung pile board wall is relatively simple, and the appearance quality is good and beautiful, including anti-skid pile and externally-hung prefabricated retaining plate. In order to improve the connecting strength between the anti-skid pile and the prefabricated retaining plate in the externally-hung pile board wall, connecting steel bars are arranged in the pile. However, the existing externally-hung pile board wall construction process is complex, and the construction efficiency is low. CONTENT OF UTILITY MODEL
[0003] In order to make up for the deficiency of the prior art, the utility model provides a retaining wall hanging plate connecting structure, which is closely combined with the cast-in-place retaining plate through the steel bars reserved in the round pile, ensures the connecting strength of the round pile and the retaining plate, and is simple in construction and high in construction efficiency.
[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0005] A retaining wall hanging plate connecting structure, comprising a round pile and a cast-in-place retaining plate, wherein the round pile is arranged on one side of the soil body;
[0006] Longitudinal stress steel bars are arranged in the round pile and the cast-in-place retaining plate;
[0007] The connecting steel bars are U-shaped, and 180° hooks are symmetrically arranged at both ends of the connecting steel bars; the closed end of the connecting steel bars is sleeved on the longitudinal stress steel bars in the round pile and is double-sidedly welded and connected with the pile longitudinal stress steel bars; one end of the connecting steel bar hook is woundly connected with the longitudinal stress steel bars in the cast-in-place retaining plate and is double-sidedly welded and connected with the plate longitudinal stress steel bars.
[0008] Further, a corbel is arranged at the top of the round pile.
[0009] Further, water drainage holes are uniformly arranged on the cast-in-place retaining plate.
[0010] Further, a filter layer is arranged at the back of the cast-in-place retaining plate.
[0011] Further, the cast-in-place retaining plate is embedded into the soil body to a certain depth, and a concrete foundation is arranged at the bottom.
[0012] Further, a 0.02m wide expansion joint is arranged on the cast-in-place retaining plate at intervals of 10-15m, and is filled with asphalt reinforcement.
[0013] Further, the connecting steel bars are arranged perpendicularly to the round piles, and the connecting steel bars on adjacent pile bodies must be at the same elevation, and the vertical spacing is 30-50cm.
[0014] The present utility model has the advantages of:
[0015] 1) The steel bars reserved by the round piles are combined with the cast-in-place retaining board closely, the on-site steel bar binding connection is convenient, the cast-in-place retaining board bottom is provided with a concrete foundation, the structure stress is stable, the engineering cost is lower, and the construction efficiency is high.
[0016] 2) The crown beam can connect the pile bodies effectively, the structure stress is good, and the crown beam top can facilitate the walking of maintenance personnel, which is beneficial to the later maintenance.
[0017] 3) The bored pile below the ground can adopt the drilling mechanical equipment to form a hole and fill a pile, the mechanization degree is high, the construction quality is reliable, and the construction is convenient. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a front view of the present utility model;
[0019] Figure 2 It is a I-I sectional view of the present utility model;
[0020] Figure 3 It is a connection schematic view of the cast-in-place retaining board and the round pile at the expansion joint of the present utility model;
[0021] Figure 4 It is a II-II sectional view of the special-shaped pile board wall structure of the present utility model;
[0022] In the drawing, 1 is a round pile, 2 is a cast-in-place retaining board, 3 is a crown beam, 4 is a drain hole, 5 is a foundation, and 6 is a filter layer. DETAILED DESCRIPTION
[0023] The present utility model will be described in detail in combination with a specific implementation.
[0024] The steel bars reserved by the round piles are combined with the cast-in-place retaining board closely, the crown beam is arranged at the top of the round pile, the structure stress is good, the drain holes are uniformly distributed on the cast-in-place retaining board, the drainage effect is good, the construction is convenient, and the present utility model can be well applied to high embankments. Figures 1-4 As shown in the drawing, the specific structure is as follows:
[0025] The present utility model comprises a round pile 1 and a cast-in-place retaining board 2, the round pile 1 is arranged on one side of a soil body, longitudinal stress steel bars are arranged in the round pile 1 and the cast-in-place retaining board 2, and the distribution steel bars are perpendicularly distributed outside the longitudinal stress steel bars.
[0026] The connecting steel bars are embedded in the round pile 1, and are arranged perpendicularly to the round pile 1; the connecting steel bars on adjacent pile bodies must be at the same elevation, and the vertical spacing is 30-50 cm; the connecting steel bars are U-shaped, and symmetrical 180° hooks are arranged at the two ends of the connecting steel bars; the closed ends of the connecting steel bars are sleeved on the longitudinal stress steel bars in the round pile 1, and are welded to the longitudinal stress steel bars of the pile in double faces; the connecting steel bars must ensure the anchoring length; one end of the hook of the connecting steel bar is wound and connected to the longitudinal stress steel bars in the cast-in-place soil retaining plate 2, and is welded to the longitudinal stress steel bars of the plate in double faces.
[0027] The crown beam 3 is arranged at the top of the round pile 1, and can better connect the pile bodies, and the structure is good in stress; meanwhile, the crown beam is convenient for the walking of maintenance personnel at the top, and is beneficial to the later maintenance.
[0028] The cast-in-place soil retaining plate 2 is uniformly provided with the water drainage holes 4, and is good in drainage effect; the back of the cast-in-place soil retaining plate 2 is provided with the filter layer 6, so as to prevent the soil particles from flowing away with water, and to ensure the safety of the wall body; in the embodiment, the cast-in-place soil retaining plate 2 between the piles is 0.3 m thick, the water drainage hole 4 with a diameter of 10 cm is reserved every 1 m along the vertical direction of the soil retaining plate, the lowest water drainage hole 4 is 0.1 m away from the ground, and the geotextile water permeable sheet is arranged behind the plate.
[0029] The bottom of the cast-in-place soil retaining plate 2 is embedded into the soil body to a certain depth, and the concrete foundation 5 is arranged at the bottom; the foundation 5 can improve the stability of the soil retaining plate structure, and the foundation 5 is cast in concrete, and the embedding depth is not less than 1 m.
[0030] The cast-in-place soil retaining plate 2 is provided with a 0.02 m wide expansion joint every 10-15 m, and is filled with asphalt reinforcement; when the expansion joint of the cast-in-place soil retaining plate 2 is located near the central axis of the round pile 1, the connecting steel bars are linear and are respectively provided with 180° hooks at the two ends; two connecting steel bars with 180° hooks are adopted, and are combined with the cast-in-place soil retaining plate 2 after being spaced by 1 / 3 of the diameter of the round pile.
[0031] The construction method of the utility model is as follows:
[0032] (1) Measure and mark the pile positions according to the design, and level the ground at the pile positions. The pile positioning should be accurate, and the pile body cross-sectional dimensions, center position, and bottom elevation of the hole must meet the engineering quality assessment and acceptance standards. During construction, the construction error of the pile cross-sectional dimensions can only be positive, not negative. The thickness of the concrete protective layer of the main reinforcement should not be less than 8cm, and the verticality deviation should not be greater than 1.0%. (2) Before the formal construction of the round pile, a test pile operation must be carried out to check the suitability of the construction process and determine the construction technical parameters. (3) The pile body reinforcement cage should be fabricated as a whole according to the design drawings, and the pre-embedded connecting reinforcement should be firmly connected to the longitudinal stress reinforcement of the pile body. After drilling is completed, a formwork should be erected above the ground to the pile top elevation, and the pre-embedded reinforcement of the pile body should extend through the opening of the formwork. (4) Before pouring the pile body concrete, the borehole should be cleaned. (5) The concrete should be injected into the pile hole through a tremie pipe or guide pipe. The bottom end of the tremie pipe or guide pipe should be 1-3m below the concrete surface. The pile body concrete must be poured continuously and vibrated to compact it. To prevent the reinforcing steel cage from floating, the pouring speed of the concrete should be reduced when the top surface of the poured concrete is about 1m away from the bottom of the reinforcing steel cage. (6) After the round piles meet the design strength requirements, the capping beam formwork is erected and the capping beam concrete is poured. (7) The retaining wall foundation is excavated and the concrete is poured. (8) The retaining wall reinforcement is tied, and it is confirmed that the reserved reinforcement of the round piles is firmly connected with the longitudinal reinforcement of the retaining wall. The formwork is erected and the concrete is poured. (9) The backfill soil behind the pile wall is filled and compacted in layers. At the same time, a bagged sand and gravel filter layer is promptly filled behind the retaining wall. After the construction of the bored piles in the underground part is completed, the pile foundation quality is tested by low strain method or sonic logging method.
[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] The content of this utility model is not limited to the embodiments listed. Any equivalent modifications made by those skilled in the art to the technical solution of this utility model by reading this utility model specification shall be covered by the claims of this utility model.
Claims
1. A retaining wall panel connection structure, characterised in that: It comprises round piles (1) and cast-in-place retaining boards (2), the round piles (1) are arranged on one side of the soil body; The round piles (1) and cast-in-place retaining boards (2) are internally provided with longitudinal stress steel bars; The round piles (1) are internally provided with connecting steel bars; the connecting steel bars are U-shaped, the two ends of the connecting steel bars are symmetrically provided with 180° hooks; the closed end of the connecting steel bar is sleeved on the longitudinal stress steel bar in the round pile (1) and is double-sided welded with the pile longitudinal stress steel bar; one end of the hook of the connecting steel bar is wound with the longitudinal stress steel bar in the cast-in-place retaining board (2) and is double-sided welded with the plate longitudinal stress steel bar.
2. A retaining wall panel connection structure according to claim 1, wherein: The top of the round pile (1) is provided with a crown beam (3).
3. A retaining wall panel connection structure according to claim 2, wherein: The cast-in-place retaining board (2) is uniformly provided with water drainage holes (4).
4. A retaining wall panel connection structure according to claim 3, wherein: The back of the cast-in-place retaining board (2) is provided with a filter layer (6).
5. A retaining wall panel connection structure according to claim 4, wherein: The bottom of the cast-in-place retaining board (2) is embedded into the soil body by a certain depth, and the bottom is provided with a concrete foundation (5).
6. A retaining wall panel connection structure according to claim 5, wherein: The cast-in-place retaining board (2) is provided with a 0.02m wide expansion joint at intervals of 10-15m, and is filled with pitch and hair muscle.
7. A retaining wall panel connection structure according to claim 6, wherein: The connecting steel bars are perpendicular to the round piles (1), and the connecting steel bars on adjacent piles must be at the same elevation, and the vertical spacing is 30-50cm.