A kind of inclined water retaining wall composite foundation structure
The inclined hydraulic retaining wall composite foundation structure achieves adjustable radial expansion of the foundation through the cooperation of the push seat and the inclined top corner. Furthermore, the linkage between the inner top column and the tensioning component solves the problems of the single foundation expansion method and the weak pile connection, thereby improving the stability of the foundation and the connection strength between the pile and the retaining wall.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI HAOCHUAN WATER CONSERVANCY & HYDROPOWER ENG CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-26
AI Technical Summary
The existing composite foundation has a single expansion method, which cannot control the expansion pattern, and the connection between the pile and the retaining wall is weak, lacking an active tensioning mechanism.
The composite foundation structure of the inclined hydraulic retaining wall is adopted. The radial expansion is achieved through the cooperation of the push seat and the inclined top corner. The linkage of the inner top column and the tensioning component forms a dynamic tensioning system, which enhances the connection strength between the pile and the retaining wall.
It achieves adjustable radial expansion and dynamic tension, improving the stability of foundation expansion and the connection strength between the piles and the retaining wall.
Smart Images

Figure CN224412610U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of composite foundation technology for retaining walls, specifically to a type of inclined hydraulic retaining wall composite foundation structure. Background Technology
[0002] A composite foundation includes reinforced concrete piles, a cushion layer, a leveling layer, and a building foundation. The reinforced concrete piles consist of reinforced concrete columns and sleeves. The sleeves are fitted onto the reinforced concrete columns. The bottom of the reinforced concrete column has a column head, and a limiting protrusion is located at the center of the outer circumference of the column head. Reinforcing ribs are provided at the top of the reinforced concrete columns. The cushion layer wraps around the reinforced concrete columns, the leveling layer is located on top of the cushion layer, and the building foundation is located on top of the leveling layer. In use, the reinforced concrete piles are first driven into the ground. After reaching a suitable depth, a pressing device is used to continue pressing the sleeve until it splits at the opening at the bottom, resulting in a bottom cross-sectional area larger than the top cross-sectional area, greatly increasing the stability of the reinforced concrete pile relative to the ground.
[0003] A search revealed that CN212052845U discloses a composite foundation comprising reinforced concrete piles, a cushion layer, a leveling layer, and a building foundation. The reinforced concrete piles include reinforced concrete columns and sleeves. The sleeves are fitted onto the reinforced concrete columns. The bottom of the reinforced concrete column has a column head, and a limiting protrusion is located at the center of the outer circumference of the column head. Reinforcing ribs are provided between the top edges of the reinforced concrete columns. The cushion layer wraps around the reinforced concrete columns, the leveling layer is located on top of the cushion layer, and the building foundation is located on top of the leveling layer. In use, the reinforced concrete piles are first driven into the ground. After reaching a suitable depth, a pressing device is used to continue pressing the sleeve until it splits at the opening at the bottom, resulting in a bottom cross-sectional area larger than the top cross-sectional area, significantly increasing the stability of the reinforced concrete piles to the ground.
[0004] The problem with the above-mentioned composite foundation is that:
[0005] 1. Limited foundation expansion method: Expansion is achieved solely by splitting the bottom opening of the sleeve, resulting in uncontrollable expansion range and angle, and an inability to adjust the expansion pattern to suit different soil conditions.
[0006] 2. Weak connection between piles and retaining wall: There is a lack of active tensioning mechanism, and the support is achieved solely by the structure of the piles themselves, making it impossible to dynamically adjust the connection strength with the retaining wall. Utility Model Content
[0007] This utility model proposes an inclined hydraulic retaining wall composite foundation structure, which solves the problems of the single foundation expansion method and the weak connection between the pile and the retaining wall in the prior art.
[0008] The technical solution of this utility model is as follows: a composite foundation structure for an inclined hydraulic retaining wall, including a pile assembly, wherein the pile assembly includes a reinforced concrete pile that is inclinedly inserted into the foundation near the retaining wall.
[0009] A lower top assembly that can be slidably inserted downward along the inner side of the reinforced concrete pile, installed inside the reinforced concrete pile.
[0010] A pusher seat is arranged in a ring at the bottom of the inner side of the reinforced concrete pile and can be inserted and squeezed outward with the lower top assembly;
[0011] Each of the aforementioned pushers is slidably connected to the through slot at the bottom of the inner side of the reinforced concrete pile;
[0012] A tensioning component installed on the outside of the reinforced concrete pile and capable of being tightened and fixed to the retaining wall when the lower top component is inserted.
[0013] Preferably, the ground pile assembly further includes:
[0014] A head cone fixedly connected to the bottom of the reinforced concrete pile;
[0015] The barbs are arranged in a ring on the outer side of the head cone.
[0016] Preferably, the ground pile assembly further includes:
[0017] A conical slot is provided on the outside of the pusher;
[0018] A sleeve plate is fixedly connected to the middle of the surface of the push base.
[0019] Preferably, the ground pile assembly further includes:
[0020] A slope is formed on the inner side of the pusher.
[0021] Preferably, the ground pile assembly further includes:
[0022] Positioning grooves are symmetrically opened on the inner wall of the reinforced concrete pile.
[0023] A fastener is fixedly connected to the slotted section on the side wall of the reinforced concrete pile.
[0024] Preferably, the lower top component includes:
[0025] The inner top column is assembled inside the reinforced concrete pile.
[0026] Preferably, the lower top component further includes:
[0027] A positioning slider is symmetrically and fixedly connected to the outside of the inner top column;
[0028] The positioning slider matches the positioning groove.
[0029] Preferably, the lower top component further includes:
[0030] An annular groove is formed around the inner top column;
[0031] A hook that is fixedly connected to the outside of the annular groove.
[0032] Preferably, the lower top component further includes:
[0033] The sloping apex is fixedly connected in a ring at the bottom of the inner top column;
[0034] Each of the aforementioned inclined apex angles corresponds to the position of each push base and the slope surface.
[0035] Preferably, the tensioning assembly includes:
[0036] A tensioning rib fitted at the fastening post;
[0037] The tensioning ribs correspond to the positions of the hooks;
[0038] Reinforcing ribs are evenly spaced and distributed inside the tension ribs.
[0039] The beneficial effects of this utility model are as follows:
[0040] I. Adjustable radial expansion structure: The innovative design adopts a sliding mechanism between the push base and the inclined top corner. When the inner top column is pressed down, the inclined top corner slides along the slope, realizing the precise radial expansion of the push base. The conical slot design enhances the anchoring effect after expansion.
[0041] II. Dynamic tensioning system: The linkage mechanism of the ring groove and the hook is set up so that the reinforcement bars are automatically tightened when the inner top column moves down, realizing the prestressed connection between the pile and the retaining wall. The equidistant distribution of the reinforcement bars ensures uniform transmission of tension. Attached Figure Description
[0042] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0043] Figure 1 This is a schematic diagram of the overall device of this utility model;
[0044] Figure 2 This is a schematic diagram showing the disassembled reinforced concrete pile and the lower top component of this utility model;
[0045] Figure 3 This is a schematic diagram of the interior of the reinforced concrete pile of this utility model;
[0046] Figure 4 for Figure 3 Enlarged view of region A;
[0047] Figure 5 for Figure 3 Enlarged view of region B;
[0048] In the diagram: 1. Ground pile assembly; 11. Reinforced concrete pile; 111. Positioning groove; 112. Column fastener; 12. Push seat; 121. Slope; 122. Sleeve plate; 123. Conical slot; 13. Head cone; 131. Spike; 2. Lower top assembly; 21. Inner top column; 211. Positioning slider; 22. Circular groove; 221. Hook; 23. Sloping top corner; 3. Tensioning assembly; 31. Tensioning bar; 32. Reinforcing bar. Detailed Implementation
[0049] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0050] Please see Figures 1-5 This utility model provides a technical solution: an inclined hydraulic retaining wall composite foundation structure, including a pile assembly 1, which includes a reinforced concrete pile 11 that is inclinedly inserted into the foundation near the retaining wall.
[0051] A lower top component 2 is installed inside the reinforced concrete pile 11 and can be slid downward along the inner side of the reinforced concrete pile 11.
[0052] A pusher seat 12 is arranged in a ring at the bottom of the inner side of the reinforced concrete pile 11 and can extend outward as it is inserted and squeezed by the lower pusher assembly 2.
[0053] Each pusher 12 is slidably connected to the through slot at the bottom of the inner side of the reinforced concrete pile 11;
[0054] A tensioning component 3 is installed on the outside of the reinforced concrete pile 11 and can be tightened and fixed to the retaining wall when the lower top component 2 is inserted;
[0055] This design addresses the problems of limited foundation expansion methods and weak connections between piles and retaining walls in existing technologies through an adjustable radial expansion structure and a dynamic tensioning system.
[0056] Please see Figure 4 The ground pile assembly 1 also includes:
[0057] The head cone 13 is fixedly connected to the bottom of the reinforced concrete pile 11;
[0058] Spikes 131 are arranged in a ring on the outer side of the head cone 13;
[0059] The head cone 13 and barb 131 can make the insertion efficiency of the reinforced concrete pile 11 into the foundation higher.
[0060] Please see Figure 4 The ground pile assembly 1 also includes:
[0061] A conical slot 123 is provided on the outside of the pusher 12;
[0062] The conical slot 123 can improve the stability of the push base 12 in the foundation soil;
[0063] A sleeve plate 122 is fixedly connected to the middle part of the surface of the push base 12;
[0064] The sleeve plate 122 provided on the outside of the pusher 12 can prevent the pusher 12 from falling off the outside of the reinforced concrete pile 11;
[0065] Please see Figure 4 The ground pile assembly 1 also includes:
[0066] A slope 121 is formed on the inner side of the push seat 12.
[0067] Please see Figure 3 The ground pile assembly 1 also includes:
[0068] Positioning grooves 111 are symmetrically opened on the inner wall of the reinforced concrete pile 11;
[0069] The fastener 112 is fixedly connected to the slot through the side wall of the reinforced concrete pile 11.
[0070] Please see Figure 1 The bottom component 2 includes:
[0071] The inner top column 21 is assembled inside the reinforced concrete pile 11.
[0072] Please see Figure 1 The bottom component 2 also includes:
[0073] Positioning sliders 211 are symmetrically and fixedly connected to the outer side of the inner top column 21;
[0074] The positioning slider 211 is matched with the positioning groove 111.
[0075] Please see Figure 2 The bottom component 2 also includes:
[0076] An annular groove 22 is formed around the inner top column 21;
[0077] A hook 221 is fixedly connected to the outside of the annular groove 22.
[0078] Please see Figure 2 The bottom component 2 also includes:
[0079] An inclined apex 23 is fixedly connected in a ring shape to the bottom of the inner top column 21;
[0080] Each sloping apex 23 corresponds to the position of each push seat 12 and the slope 121.
[0081] Please see Figure 5 The tensioning component 3 includes:
[0082] The tensioning rib 31 is fitted onto the fastening column 112;
[0083] The tensioner rib 31 corresponds to the hook 221;
[0084] Reinforcing ribs 32 are evenly distributed inside the tension ribs 31;
[0085] After the reinforced concrete pile 11 is inserted into the ground through the head cone 13 and the barb 131, the inner top column 21 can be taken out. After aligning the positioning slider 211 on the outside of the inner top column 21 with the positioning groove 111, the inner top column 21 is inserted into the inside of the reinforced concrete pile 11 using external tools.
[0086] Specifically, during the insertion process;
[0087] The sloping apex 23 will contact the slope surface 121 and push the pusher 12 horizontally. At this time, each pusher 12 will expand and squeeze outward from the reinforced concrete pile 11 through the conical slot 123 and insert into the foundation soil. This design allows the slopingly inserted reinforced concrete pile 11 to be firmly placed in the foundation soil in conjunction with the diffused pusher 12.
[0088] Meanwhile, as the inner top column 21 is inserted into the reinforced concrete pile 11, the hook 221 on the outside of the annular groove 22 will pull down the tension bar 31, thereby tightening the tension bar 31 connecting the reinforced concrete pile 11 and the retaining wall. This design can increase the stability of the connection between the reinforced concrete pile 11 and the retaining wall.
[0089] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A composite foundation structure for an inclined hydraulic retaining wall, comprising a pile assembly (1), characterized in that: The pile assembly (1) includes a reinforced concrete pile (11) that is inserted obliquely into the foundation near the retaining wall. A lower top component (2) is installed inside the reinforced concrete pile (11) and can be slidably inserted downward along the inner side of the reinforced concrete pile (11). A pusher seat (12) is arranged in a ring at the bottom of the inner side of the reinforced concrete pile (11) and can be inserted and squeezed outward with the bottom pusher assembly (2). Each of the pushers (12) is slidably connected to the bottom through slot on the inner side of the reinforced concrete pile (11); A tensioning assembly (3) is installed outside the reinforced concrete pile (11) and can be tightened and fixed to the retaining wall when the lower top assembly (2) is inserted.
2. The inclined hydraulic retaining wall composite foundation structure according to claim 1, characterized in that, The ground pile assembly (1) also includes: A head cone (13) is fixedly connected to the bottom of the reinforced concrete pile (11); The barbs (131) are arranged in a ring on the outside of the head cone (13).
3. The inclined hydraulic retaining wall composite foundation structure according to claim 2, characterized in that, The ground pile assembly (1) also includes: A conical slot (123) is provided on the outside of the pusher (12); A sleeve plate (122) is fixedly connected to the middle of the surface of the push base (12).
4. The inclined hydraulic retaining wall composite foundation structure according to claim 3, characterized in that, The ground pile assembly (1) also includes: A slope (121) is formed on the inner side of the pusher (12).
5. The inclined hydraulic retaining wall composite foundation structure according to claim 4, characterized in that, The ground pile assembly (1) also includes: Positioning grooves (111) are symmetrically opened on the inner wall of the reinforced concrete pile (11). The fastener (112) is fixedly connected to the slot through the side wall of the reinforced concrete pile (11).
6. The inclined hydraulic retaining wall composite foundation structure according to claim 5, characterized in that, The lower top component (2) includes: The inner top column (21) is assembled inside the reinforced concrete pile (11).
7. The inclined hydraulic retaining wall composite foundation structure according to claim 6, characterized in that, The lower top component (2) also includes: A positioning slider (211) is symmetrically fixed to the outside of the inner top column (21); The positioning slider (211) is matched with the positioning groove (111).
8. The inclined hydraulic retaining wall composite foundation structure according to claim 7, characterized in that, The lower top component (2) also includes: An annular groove (22) is formed around the inner top column (21); A hook (221) is fixedly connected to the outside of the annular groove (22).
9. A composite foundation structure for an inclined hydraulic retaining wall according to claim 8, characterized in that, The lower top component (2) also includes: The inclined apex (23) is fixedly connected in a ring to the bottom of the inner top column (21); Each of the inclined apex angles (23) corresponds to the position of each push base (12) and slope (121).
10. A composite foundation structure for an inclined hydraulic retaining wall according to claim 9, characterized in that, The tensioning assembly (3) includes: A tensioning rib (31) is fitted onto the buckle post (112); The tensioning rib (31) corresponds to the position of the hook (221); Reinforcing ribs (32) are evenly distributed inside the tension rib (31).