A concrete pouring retaining device for pile foundation construction
By using a multi-layered casing structure and buffer design, the problem of insufficient lateral pressure resistance of pile foundation retaining walls was solved, the overall structural strength and fatigue resistance were improved, and damage at the joints was reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI CENT SOUTH EXPLORATION & FOUND ENG
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-30
AI Technical Summary
The existing pile foundation retaining structure has insufficient lateral pressure resistance and is prone to fatigue and fracture at the connection points.
The structure adopts a multi-layered casing structure, including an outer casing, an inner casing, connectors, and buffers. It is connected by a through-type steel main frame and a metal grid frame. Combined with the buffers to absorb energy, it improves the overall structural strength and fatigue resistance.
It significantly improves the overall structural strength and lateral pressure resistance of the concrete pouring retaining wall during pile foundation construction, and reduces fatigue and fracture at the joints.
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Figure CN224431420U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pile foundation construction technology, specifically to a concrete pouring retaining device for pile foundation construction. Background Technology
[0002] A deep foundation consisting of piles and a pile cap (or pile cap) connecting the top of the piles, or a single pile foundation consisting of a column and a pile foundation, is called a pile foundation. After the concrete of the pile foundation is poured, protective work needs to be carried out on the uncured pile foundation.
[0003] An in-depth investigation of current concrete pile foundation retaining structures revealed that most retaining structures are made by splicing protective plates. Such retaining structures, which are spliced together, have poor overall structural strength and high stress concentration, resulting in insufficient lateral pressure resistance. In particular, at the connection points, the retaining structure is prone to fatigue or even breakage. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a concrete pouring retaining device for pile foundation construction, which solves the problem of insufficient lateral pressure resistance of existing pile foundation retaining structures.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a concrete pouring retaining device for pile foundation construction, characterized in that: it includes multiple retaining cylinders and connecting parts for connecting the retaining cylinders, the retaining cylinder includes an outer protective plate and an inner protective plate, the connecting parts include a protective gasket and a connecting sleeve, and a ground spike is installed at the bottom of the bottommost retaining cylinder.
[0008] Corner bolts are installed on the inner sides of both the outer and inner protective plates. Circular beams are installed on the corner bolts, and load-bearing steel bars are interspersed between the circular beams. Locking washers for locking the load-bearing steel bars are provided on the corner bolts.
[0009] The casing also contains a cushioning component.
[0010] The outer protective plate is connected to the ring beam by a shock-absorbing spring, and the gap between the outer protective plate and the ring beam is filled with sponge blocks. The gap between the ring beam and the inner protective plate is fitted with rubber pads.
[0011] As a further preferred embodiment, the outer protective plate is polygonal in shape, and the inner protective plate is circular in shape.
[0012] As a further preferred embodiment, the connecting sleeve includes an outer shell and an inner lining plate, a metal mesh frame is installed in the gap between the outer shell and the inner lining plate, the load-bearing steel bars are inserted through the metal mesh frame, and adjacent load-bearing steel bars are connected by reinforcing bars.
[0013] As a further preferred embodiment, the buffer includes a main damping sleeve and a secondary damping sleeve. A first rigid spring is provided inside the main damping sleeve, and a main buffer head is installed on the first rigid spring. A second rigid spring is provided inside the secondary damping sleeve, and a secondary buffer head is installed on the second rigid spring.
[0014] As a further preferred embodiment, a plug-in sleeve is installed on the outer side of the protective sleeve, and a support rod is installed on the internal thread of the plug-in sleeve.
[0015] (III) Beneficial Effects
[0016] This utility model provides a concrete pouring retaining device for pile foundation construction. It has the following beneficial effects:
[0017] This concrete pouring retaining device for pile foundation construction integrates multiple layers of retaining panels by setting a through-type steel reinforcement main frame, thereby significantly improving the overall structural strength of the retaining. Furthermore, by setting a metal mesh frame at the connection, its fatigue resistance is effectively improved. Moreover, by setting a buffer inside the retaining, the overall lateral pressure resistance of the retaining is effectively improved. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a top sectional view of the protective sleeve structure of this utility model;
[0020] Figure 3 This is a top sectional view of the connecting sleeve structure of this utility model;
[0021] Figure 4 This is an enlarged view of the buffer structure of this utility model.
[0022] In the diagram: 1. Casing body; 101. Outer protective plate; 102. Inner protective plate; 2. Connecting sleeve; 201. Outer shell; 202. Inner lining plate; 3. Protective pad; 4. Ground spike; 5. Corner bolt; 6. Ring beam; 7. Load-bearing steel column; 8. Locking washer; 9. Buffer component; 91. Main shock-absorbing sleeve; 92. Secondary shock-absorbing sleeve; 93. First rigid spring; 94. Main buffer head; 95. Secondary rigid spring; 96. Secondary buffer head; 10. Shock-absorbing spring; 11. Sponge block; 12. Rubber pad; 13. Metal mesh frame; 14. Reinforcing rib; 15. Insertion sleeve; 16. Support rod. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figure 1-4 As shown, this utility model provides a technical solution: a concrete pouring retaining device for pile foundation construction, including multiple retaining cylinders 1 and connectors for connecting the retaining cylinders 1. The retaining cylinder 1 includes an outer retaining plate 101 and an inner retaining plate 102 (the inner and outer retaining plates can be made of wood or metal plates). The outer retaining plate 101 is hexagonal in shape, and the inner retaining plate 102 is circular in shape. The connectors include a gasket 3 (setting a gasket 3 can improve the sealing of the connection and prevent moisture intrusion) and a connecting sleeve 2. A ground spike 4 is installed at the bottom of the retaining cylinder 1 at the bottom, and the ground spike 4 is used to fix the retaining to the ground.
[0025] The connecting sleeve 2 includes an outer shell 201 and an inner lining plate 202. Multiple sets of metal mesh frames 13 are installed in the gap between the outer shell 201 and the inner lining plate 202. The spacing between each set of metal mesh frames 13 is no more than 100 cm. The load-bearing steel bars 7 are inserted through the metal mesh frames 13. Adjacent load-bearing steel bars 7 are connected by reinforcing bars 14.
[0026] Angle bolts 5 are installed on the inner sides of both the outer protective plate 101 and the inner protective plate 102. A ring beam 6 is installed on the angle bolt 5. The ring beam 6 is made of high carbon steel. Reinforcing steel columns 7 are interspersed between the ring beams 6. Locking washers 8 are provided on the angle bolts 5 for locking the reinforcing steel columns 7.
[0027] The protective sleeve 1 is also equipped with a buffer component 9, which includes a main damping sleeve 91 and a secondary damping sleeve 92. The main damping sleeve 91 is equipped with a first rigid spring 93, and a main buffer head 94 is installed on the first rigid spring 93. The secondary damping sleeve 92 is equipped with a second rigid spring 95, and a secondary buffer head 96 is installed on the second rigid spring 95. When the protective sleeve 1 is subjected to a lateral impact, energy is absorbed by multiple buffer components 9 inside the protective sleeve 1. Specifically, energy is absorbed by the deformation of multiple sets of first rigid springs 93 and second rigid springs 95.
[0028] The outer protective plate 101 is connected to the ring beam 6 by a shock-absorbing spring 10, and the gap between the outer protective plate 101 and the ring beam 6 is filled with a sponge block 11. The gap between the ring beam 6 and the inner protective plate 102 is provided with a rubber pad 12. The shock-absorbing spring 10, the sponge block 11 and the rubber pad 12 can all play a certain role in shock absorption.
[0029] A plug-in sleeve 15 is installed on the outside of the casing 1, and a support rod 16 is installed on the internal thread of the plug-in sleeve 15. By supporting the ground with multiple support rods 16, the entire enclosure is supported.
[0030] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0031] When in use, the casing 1 adopts an outer square and inner circle structure. The "inner circle" can correspond to the shape of the pile foundation, which is convenient for construction and maintenance. The "outer square" can increase its contact area with the impacting object and avoid damage caused by stress concentration after the enclosure is impacted.
[0032] Secondly, the entire enclosure is organically connected by through-type load-bearing steel columns 7, which enhances the overall structural strength of the enclosure. Specifically, inside the casing 1, the load-bearing steel columns 7 and multiple sets of ring beams 6 together form a main structure that can withstand external impacts. Furthermore, by setting buffers 9, the energy generated by the impact can be absorbed, thus achieving the purpose of energy dissipation.
[0033] At the connection point of the enclosure, namely the connecting sleeve 2 structure, the load-bearing steel column 7 and multiple sets of metal grid 13 together form a main structure, which serves to strengthen the structural strength of the connection point. Furthermore, the load-bearing steel columns 7 are connected to each other by reinforcing bars 14, which serves to strengthen the structure.
[0034] In summary, this concrete pouring retaining device for pile foundation construction significantly improves the overall structural strength of the retaining structure by integrating multiple layers of retaining panels through a through-type steel reinforcement main frame. Furthermore, the installation of a metal mesh frame at the connection points effectively enhances its fatigue resistance. Moreover, the installation of buffer components inside the retaining structure effectively improves the overall lateral pressure resistance of the retaining structure.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A concrete pouring retaining device for pile foundation construction, characterized in that: It includes multiple protective casings (1) and connectors for connecting the protective casings (1). The protective casing (1) includes an outer protective plate (101) and an inner protective plate (102). The connectors include protective gaskets (3) and connecting sleeves (2). The bottom of the lowest protective casing (1) is equipped with ground spikes (4). Angle bolts (5) are installed on the inner sides of the outer protective plate (101) and the inner protective plate (102). A ring beam (6) is installed on the angle bolt (5). A load-bearing steel column (7) is interspersed between the ring beams (6). A locking washer (8) for locking the load-bearing steel column (7) is provided on the angle bolt (5). A buffer element (9) is also provided inside the protective casing (1); The outer protective plate (101) is connected to the ring beam (6) by a shock-absorbing spring (10), and the gap between the outer protective plate (101) and the ring beam (6) is filled with a sponge block (11), and the gap between the ring beam (6) and the inner protective plate (102) is provided with a rubber pad (12).
2. The concrete pouring retaining device for pile foundation construction according to claim 1, characterized in that: The outer protective plate (101) is a regular polygon shape, and the inner protective plate (102) is a circular shape.
3. The concrete pouring retaining device for pile foundation construction according to claim 1, characterized in that: The connecting sleeve (2) includes an outer shell (201) and an inner lining plate (202). A metal mesh frame (13) is installed in the gap between the outer shell (201) and the inner lining plate (202). The load-bearing steel bars (7) are inserted through the metal mesh frame (13). Adjacent load-bearing steel bars (7) are connected by reinforcing bars (14).
4. The concrete pouring retaining device for pile foundation construction according to claim 1, characterized in that: The buffer (9) includes a main damping sleeve (91) and a secondary damping sleeve (92). A first rigid spring (93) is provided inside the main damping sleeve (91), and a main buffer head (94) is installed on the first rigid spring (93). A second rigid spring (95) is provided inside the secondary damping sleeve (92), and a secondary buffer head (96) is installed on the second rigid spring (95).
5. A concrete pouring retaining device for pile foundation construction according to claim 1, characterized in that: A plug sleeve (15) is installed on the outside of the casing (1), and a support rod (16) is installed on the inner thread of the plug sleeve (15).