A detachable pile foundation reinforcement cage assembling frame suitable for steep slope region construction
By designing a detachable pile foundation steel cage assembly frame, the problems of high site requirements and safety risks in steep slope areas were solved, enabling low-cost and high-safety steel cage construction in steep slope areas.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN ROAD & BRIDGE CONSTRUCTION GROUP CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-09
Smart Images

Figure CN224338251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pile foundation construction equipment technology, specifically a detachable pile foundation steel cage assembly frame suitable for construction in steep slope areas. Background Technology
[0002] The installation of the reinforcing cage is a crucial step in pile foundation construction. With the widespread adoption of reinforcing cage fabrication equipment, cages are typically manufactured in sections at the factory. After being transported to the site, they are lifted in sections using hoisting equipment such as gantry cranes, truck cranes, and crawler cranes. Finally, the sections are connected at the borehole opening and lowered one by one. During borehole connection, the previous reinforcing cage section is lowered to a suitable height reserved at the opening. A spreader beam is passed under the reinforcing bars to temporarily support the cage on the borehole casing or a stable platform. Alternatively, the cage can be temporarily supported on a dedicated anchoring plate.
[0003] The prefabrication and on-site connection of steel cage segments places high demands on the site conditions. If the pile location is in a steep slope area, sufficient access and working conditions for transporting and hoisting the steel cage require measures such as constructing access roads, excavation and filling, or erecting steel platforms to meet construction requirements. This becomes particularly problematic when the number of piles is small, as the cost per pile becomes prohibitively high. Furthermore, constructing access roads, excavation and filling, and erecting steel platforms all cause significant disturbance to the slope, especially in areas with poor geological conditions and steep terrain, which can easily trigger landslides and other catastrophic accidents, seriously threatening construction safety.
[0004] Therefore, there is an urgent need for a pile foundation reinforcement cage construction equipment suitable for steep slope areas, which can reduce the requirements for construction sites and hoisting equipment, avoid the adverse effects of large-scale excavation on slopes, and facilitate the entry and operation of the equipment itself in steep slope areas. Utility Model Content
[0005] To overcome the shortcomings of the prior art, this utility model provides a detachable pile foundation steel cage assembly frame suitable for construction in steep slope areas.
[0006] To achieve the above objectives, a detachable pile foundation reinforcement cage assembly frame suitable for construction in steep slope areas is designed, including a base. The frame is characterized by: a lower column and an upper column above the base; a lower horizontal bar and a middle horizontal bar between the lower columns; an upper horizontal bar at the top of the upper column; a lower diagonal bar between the lower column and the middle horizontal bar; an upper diagonal bar between the upper column and the upper horizontal bar; a lower hanging beam at the top of the middle horizontal bar; an upper hanging beam at the top of the upper horizontal bar; and chucks on the inner sides of the lower and middle horizontal bars.
[0007] Furthermore, the lower column includes 8 connectors: one connector at the bottom is bolted to the base; two connectors on the sides are bolted to the lower crossbar; two connectors on the sides are bolted to the lower diagonal bar; two connectors on the sides are bolted to the middle crossbar; and one connector at the top is bolted to the upper column.
[0008] Furthermore, the upper column includes four joints: one joint at the bottom is bolted to the lower column, two joints on the sides are bolted to the upper diagonal bar, and one joint at the top is bolted to the upper crossbar.
[0009] Furthermore, the lower crossbar includes two joints, which are bolted to the lower column through the two end joints.
[0010] Furthermore, the middle crossbar includes 6 joints: 2 joints at the ends are bolted to the lower column, 2 joints on the bottom surface are bolted to the lower diagonal bar, and 2 joints on the top surface are bolted to the lower hanging beam.
[0011] The upper crossbar includes a long upper crossbar and a short upper crossbar;
[0012] The upper horizontal long bar includes 8 joints, of which 2 joints at the bottom end are bolted to the upper column, 2 joints at the side end are bolted to the upper horizontal short bar, 2 joints at the bottom are bolted to the upper diagonal bar, and 2 joints at the top are bolted to the upper hanging beam.
[0013] The upper horizontal short bar includes 6 joints, of which 2 joints at the end are bolted to the upper horizontal long bar, 2 joints at the bottom are bolted to the upper diagonal bar, and 2 joints at the top are bolted to the upper hanging beam.
[0014] Furthermore, the lower inclined rod includes two joints, which are bolted to the lower column and the middle crossbar respectively through the two end joints.
[0015] Furthermore, the upper diagonal brace includes two joints, which are bolted to the upper column and the upper crossbar respectively through the two end joints.
[0016] Furthermore, the lower hanging beam includes two joints, wherein the two joints on the bottom surface are bolted to the middle crossbar.
[0017] Furthermore; the upper hanging beam includes two joints, wherein the two joints on the bottom surface are bolted to the upper crossbar;
[0018] The chuck is fixed to the inner side of the lower and middle crossbars by bolts.
[0019] Compared with existing technologies, this application provides a detachable pile foundation reinforcement cage assembly frame, which mainly solves the problems of site constraints, high costs, and high safety risks faced when constructing pile foundations in steep slopes with poor geological conditions. Its core value lies in enabling on-site assembly of the reinforcement cage without large-scale earthwork and large platforms / equipment, thereby reducing costs, protecting slope stability, ensuring construction safety, and significantly improving the feasibility of construction under such complex terrain conditions. It provides a practical, safe, and economical solution for pile foundation reinforcement cage construction in steep slope areas where traditional methods are difficult to implement or too costly / risky.
[0020] The beneficial effects of this utility model are specifically manifested as follows:
[0021] 1. The equipment itself is highly adaptable. Its core advantage lies in its detachable nature, which makes the assembly frame easy to transport, bring to the site, and erect in steep slope areas, overcoming terrain obstacles and directly serving the target pile location.
[0022] 2. Significantly reduces the requirements for the construction site. It solves the site problems faced by traditional prefabrication and on-site connection methods of steel cage segments when constructing on steep slopes, eliminating the need for large-scale construction of access roads, excavation and filling, or erection of large steel platforms for transporting and hoisting large steel cages or equipment.
[0023] 3. Reduce reliance on large lifting equipment. The design aims to reduce the need for large, heavy lifting equipment, making it more suitable for operations in space-constrained, steep terrain areas.
[0024] 4. Minimize slope disturbance and ensure safety. This method effectively avoids the large-scale disturbance caused by traditional methods (such as excavation and filling, and platform construction) to slopes with poor geological conditions and steep terrain, significantly reducing the risk of landslides and other catastrophic accidents, and greatly improving construction safety.
[0025] 5. Significantly reduces the cost of individual pile measures. Especially when the number of piles is small, it avoids the unacceptably high cost of temporary measures (such as building access roads, platforms, etc.) that would be spread across individual piles, thus improving the economic efficiency of the project. Attached Figure Description
[0026] Figure 1 This is a three-dimensional view of the present invention.
[0027] Figure 2 A three-dimensional view of the base (1).
[0028] Figure 3 This is a three-dimensional view of the lower column (2).
[0029] Figure 4 This is a three-dimensional view of the upper column (3).
[0030] Figure 5 This is a three-dimensional view of the lower horizontal bar (4).
[0031] Figure 6 This is a three-dimensional view of the middle crossbar (5).
[0032] Figure 7 This is a three-dimensional view of the upper horizontal bar (6-1).
[0033] Figure 8 This is a three-dimensional view of the upper horizontal short bar (6-2).
[0034] Figure 9 This is a three-dimensional view of the lower diagonal bar (7).
[0035] Figure 10 This is a three-dimensional view of the upper diagonal bar (8).
[0036] Figure 11 This is a three-dimensional view of the lower hanging beam (9).
[0037] Figure 12 This is a three-dimensional view of the upper hanging beam (10).
[0038] Figure 13 A three-dimensional view of the chuck (11).
[0039] Figure 14 This refers to the process of lowering the steel cage.
[0040] The components include: 1. Base; 2. Lower column; 3. Upper column; 4. Lower crossbar; 5. Middle crossbar; 6. Upper crossbar; 7. Lower diagonal bar; 8. Upper diagonal bar; 9. Lower hanging beam; 10. Upper hanging beam; 11. Chuck. Detailed Implementation
[0041] The following will be combined with the appendix Figures 1-14 The present invention will be further described below. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0042] like Figure 1 As shown, this utility model provides a detachable pile foundation steel cage assembly frame suitable for construction in steep slope areas: a lower column 2 and an upper column 3 are set above the base 1, a lower horizontal bar 4 and a middle horizontal bar 5 are set between the lower columns 2, an upper horizontal bar 6 is set at the top of the upper column 3, a lower diagonal bar 7 is set between the lower column 2 and the middle horizontal bar 5, an upper diagonal bar 8 is set between the upper column 3 and the upper horizontal bar 6, a lower hanging beam 9 is set at the top of the middle horizontal bar 5, an upper hanging beam 10 is set at the top of the upper horizontal bar 6, and a chuck 11 is set on the inner side of the lower horizontal bar 4 and the middle horizontal bar 5.
[0043] In this application, the lower column 2 includes 8 joints: one bottom joint is bolted to the base 1, two side joints are bolted to the lower crossbar 4, two side joints are bolted to the lower diagonal bar 7, two side joints are bolted to the middle crossbar 5, and one top joint is bolted to the upper column 3.
[0044] In this application, the upper column 3 includes 4 joints: one bottom joint is bolted to the lower column 2, two side joints are bolted to the upper diagonal bar 8, and one top joint is bolted to the upper crossbar 6.
[0045] In this application, the lower crossbar 4 includes two joints, which are bolted to the lower column 2 via the two end joints.
[0046] In this application, the middle crossbar 5 includes 6 joints, which are bolted to the lower column 2 via 2 end joints, bolted to the lower diagonal bar 7 via 2 bottom joints, and bolted to the lower hanging beam 9 via 2 top joints.
[0047] In this application, the upper horizontal bar 6 includes an upper horizontal long bar 6-1 and an upper horizontal short bar 6-2.
[0048] The upper horizontal long bar 6-1 includes 8 joints, of which 2 joints at the bottom end are bolted to the upper column 3, 2 joints at the side end are bolted to the upper horizontal short bar 6-2, 2 joints at the bottom end are bolted to the upper diagonal bar 8, and 2 joints at the top end are bolted to the upper hanging beam 10.
[0049] The upper horizontal short bar 6-2 includes 6 joints, of which 2 joints at the end are bolted to the upper horizontal long bar 6-1, 2 joints at the bottom are bolted to the upper diagonal bar 8, and 2 joints at the top are bolted to the upper hanging beam 10.
[0050] In this application, the lower diagonal brace 7 includes two joints, which are bolted to the lower column 2 and the middle crossbar 5 respectively through the two end joints.
[0051] In this application, the upper diagonal brace 8 includes two joints, which are bolted to the upper column 3 and the upper crossbar 6 respectively through the two end joints.
[0052] The lower beam 9 includes two joints, two of which are bolted to the middle crossbar 5 via two joints on the bottom surface.
[0053] The upper hanging beam 10 includes two joints, of which the two joints on the bottom surface are bolted to the upper crossbar 6.
[0054] The chuck 11 is fixed to the inside of the lower crossbar 4 and the middle crossbar 5 by bolts.
[0055] The installation process of this utility model is as follows: After the pile foundation is excavated and the hole is formed, a reinforced concrete base 1 is set at the hole opening, or an existing manually excavated pile locking structure that meets the design requirements is used. First, the lower column 2, lower horizontal bar 4, middle horizontal bar 5, lower diagonal bar 7 and lower hanging beam 9 of the assembly frame are installed in sequence to form the first layer structure of the assembly frame. Then, on this basis, the upper column 3, upper horizontal bar 6, upper diagonal bar 8 and upper hanging beam 10 of the assembly frame are installed in sequence. Finally, the chuck 11 is installed to complete the assembly.
[0056] like Figure 14 As shown, the method of using this utility model is as follows: ① Use a hand-operated hoist to suspend the main reinforcement bars of the steel cage on the upper hanging beam 10 to complete the segmental steel cage fabrication; ② Use the hand-operated hoist on the upper hanging beam 10 to lower the steel cage to about half the height of the assembly frame, then transfer the segmental steel cage to the hand-operated hoist on the lower hanging beam 9, and release the hand-operated hoist on the upper hanging beam 10; ③ Use the hand-operated hoist on the lower hanging beam 9 to lower the steel cage to the base 1 position and temporarily lock it; ④ Repeat steps ① to ③ until the entire steel cage is fabricated and lowered.
[0057] The foregoing has shown and described the main features, installation process, and usage method of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples of this utility model and are not intended to limit it. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A detachable pile cage assembling frame suitable for steep slope area construction, comprising a base (1), characterized in that: A lower column (2) and an upper column (3) are provided above the base (1). A lower horizontal bar (4) and a middle horizontal bar (5) are provided between the lower columns (2). An upper horizontal bar (6) is provided at the top of the upper column (3). A lower diagonal bar (7) is provided between the lower column (2) and the middle horizontal bar (5). An upper diagonal bar (8) is provided between the upper column (3) and the upper horizontal bar (6). A lower hanging beam (9) is provided at the top of the middle horizontal bar (5). An upper hanging beam (10) is provided at the top of the upper horizontal bar (6). A chuck (11) is provided on the inner side of the lower horizontal bar (4) and the middle horizontal bar (5).
2. The detachable pile cage assembling frame suitable for steep slope area construction according to claim 1, characterized in that: The lower column (2) includes 8 joints. It is bolted to the base (1) through the bottom joint, bolted to the lower crossbar (4) through the two side joints, bolted to the lower diagonal bar (7) through the two side joints, bolted to the middle crossbar (5) through the two side joints, and bolted to the upper column (3) through the top joint.
3. The detachable pile cage assembling frame suitable for steep slope area construction according to claim 1, characterized in that: The upper column (3) includes 4 joints: one bottom joint is bolted to the lower column (2), two side joints are bolted to the upper diagonal bar (8), and one top joint is bolted to the upper horizontal bar (6).
4. The detachable pile cage assembling frame suitable for steep slope area construction according to claim 1, characterized in that: The lower crossbar (4) includes two joints, which are bolted to the lower column (2) through the two end joints.
5. The detachable pile cage assembling frame suitable for steep slope area construction according to claim 1, characterized in that: The middle crossbar (5) includes 6 joints. The two end joints are bolted to the lower column (2), the two bottom joints are bolted to the lower diagonal bar (7), and the two top joints are bolted to the lower hanging beam (9).
6. The detachable pile cage assembling frame suitable for steep slope area construction according to claim 1, characterized in that: The upper crossbar (6) includes an upper long crossbar (6-1) and an upper short crossbar (6-2). The upper horizontal long bar (6-1) includes 8 joints, of which 2 joints at the bottom end are bolted to the upper column (3), 2 joints at the side end are bolted to the upper horizontal short bar (6-2), 2 joints at the bottom end are bolted to the upper diagonal bar (8), and 2 joints at the top end are bolted to the upper hanging beam (10). The upper horizontal short bar (6-2) includes 6 joints, of which 2 joints at the end are bolted to the upper horizontal long bar (6-1), 2 joints at the bottom are bolted to the upper diagonal bar (8), and 2 joints at the top are bolted to the upper hanging beam (10).
7. The detachable pile cage assembling frame suitable for steep slope area construction according to claim 1, characterized in that: The lower inclined rod (7) includes two joints, which are bolted to the lower column (2) and the middle crossbar (5) respectively through the two end joints.
8. The detachable pile cage assembling frame suitable for steep slope area construction according to claim 1, characterized in that: The upper diagonal bar (8) includes two joints, which are bolted to the upper column (3) and the upper crossbar (6) respectively through the two end joints.
9. The detachable pile cage assembling frame suitable for steep slope area construction according to claim 1, characterized in that: The lower hanging beam (9) includes two joints, of which the two joints on the bottom surface are bolted to the middle crossbar (5).
10. The detachable pile cage assembling frame suitable for steep slope area construction according to claim 1, characterized in that: The upper hanging beam (10) includes two joints, wherein the two joints on the bottom surface are bolted to the upper crossbar (6); The chuck (11) is fixed to the inside of the lower crossbar (4) and the middle crossbar (5) by bolts.