Construction elevator foundation at fertilizer groove
By setting up a combined structure of concrete retaining piles, raft foundations and support columns at the trench, the problems of limited construction time and large settlement of traditional construction elevator foundations were solved, thus improving the stability and safety of the elevator foundation.
Patent Information
- Application Number
- CN202423044009.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-10
AI Technical Summary
When using traditional methods to set up construction elevator foundations at the trench, the construction time is limited by the completion of backfilling, the foundation settlement is large, and the safety and stability are low.
The construction elevator adopts a combined structure consisting of concrete retaining piles, raft foundation, concrete support columns, concrete horizontal tie beams, construction elevator foundation slab, and capping beam. It is connected to the raft foundation through concrete support columns and uses guide rails and wall-mounted frames to transfer loads, thereby achieving stable lifting and lowering of the construction elevator.
This enabled the early construction of the construction elevator foundation, avoiding the limitations of backfilling time, reducing settlement, and improving safety and stability.
Smart Images
Figure CN223497216U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building construction technology, specifically relating to a construction elevator foundation for a trench. Background Technology
[0002] A foundation pit is the space between the exterior wall of a building's basement or foundation and the edge of the excavation pit. Currently, when setting up a construction elevator foundation in a foundation pit, the process typically involves backfilling and compacting the pit before constructing the foundation on top of the backfill. However, this method has limitations, including the requirement that the construction elevator foundation must be built only after backfilling is completed, significant foundation settlement, and relatively low safety and stability. Utility Model Content
[0003] To address the problems in the prior art, this application proposes a construction elevator foundation for trenches, which overcomes the problem of foundation settlement that easily occurs when constructing elevator foundations for trenches using traditional methods.
[0004] This utility model proposes a construction elevator foundation for a trench, comprising: concrete retaining piles, a raft foundation, concrete support columns, a concrete horizontal tie beam, a construction elevator foundation slab, and a capping beam; the raft foundation is located at the bottom of the trench; the concrete support columns are located at the trench, and there are multiple concrete support columns connected by the concrete horizontal tie beam; the capping beam is located on top of the concrete retaining piles; the construction elevator foundation slab is laid on top of the capping beam and the concrete support columns.
[0005] Furthermore, the concrete support column is provided with longitudinal reinforcement bars; the top of the longitudinal reinforcement bars is anchored into the construction elevator foundation slab, and the bottom of the longitudinal reinforcement bars is anchored into the raft foundation.
[0006] Furthermore, the top and bottom of the longitudinal steel bars of the column are respectively provided with bent portions.
[0007] Furthermore, column stirrups are provided at equal intervals on the outer side of the longitudinal reinforcement bars of the column.
[0008] Furthermore, there are three concrete support columns, which are arranged in a triangular pattern.
[0009] Furthermore, the interior of the concrete horizontal tie beam is provided with longitudinal beam reinforcement and stirrups; both ends of the longitudinal beam reinforcement are anchored into the concrete support column.
[0010] Furthermore, the construction elevator foundation slab is provided with foundation slab reinforcement and U-shaped reinforcement; the bottom of the U-shaped reinforcement is anchored into the capping beam.
[0011] Furthermore, a hole is provided at the top of the cap beam, and chemical anchoring adhesive is injected into the hole; the bottom of the U-shaped steel bar is anchored into the hole.
[0012] Furthermore, a guide rail frame is installed on the foundation slab of the construction elevator, and the construction elevator is installed on the guide rail frame. The guide rail frame is also connected to a wall-mounted frame; the wall-mounted frame is connected to a concrete exterior wall set on the raft foundation.
[0013] Furthermore, anchor bolts are provided inside the foundation plate of the construction elevator; the anchor bolts are connected to the guide rail frame.
[0014] The beneficial effects of this invention are as follows: By setting concrete support columns within the backfill trench, and utilizing these columns connected to the raft foundation to support the construction elevator foundation slab, the vertical load of the construction elevator is transferred to the foundation slab via guide rails. The load on the foundation slab is then transferred to the concrete retaining piles and support columns. The horizontal load is transferred to the concrete exterior wall of the main building via wall-mounted frames, thus achieving stable lifting and lowering operation of the construction elevator. Compared to the traditional method of constructing the elevator foundation after backfilling the trench, the elevator foundation of this invention can be inserted into the construction of the elevator foundation in advance, and vertical transportation is not constrained by the backfilling time. Simultaneously, the load of the construction elevator foundation can be effectively transferred, resulting in less settlement and higher safety and stability compared to placing the construction elevator foundation on backfill soil. Attached Figure Description
[0015] Figure 1 This is a plan view of the construction elevator foundation at the trough of this utility model.
[0016] Figure 2 This is a cross-sectional schematic diagram of the construction elevator foundation at the trough of this utility model.
[0017] Figure 3 This is a schematic diagram of the reinforcement plan of the construction elevator foundation at the trough of this utility model.
[0018] Figure 4 This is a schematic cross-sectional view of the reinforcement of the construction elevator foundation at the trough of this utility model.
[0019] In the diagram: 1-Original soil; 2-Concrete retaining piles; 3-Raft foundation; 4-Concrete support column; 5-Concrete horizontal tie beam; 6-Construction elevator foundation slab; 7-Concrete exterior wall; 8-Cap beam; 9-Road hardening layer; 10-Construction elevator; 11-Guide rail frame; 12-Wall ties; 13-Foundation slab reinforcement; 14-U-shaped reinforcement; 15-Anchor bolts; 16-Column longitudinal reinforcement; 17-Column stirrups; 18-Beam longitudinal reinforcement; 19-Beam stirrups; 20-Chemical anchoring adhesive. Detailed Implementation
[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] like Figures 1-4 The construction elevator foundation at the trough shown includes concrete retaining piles 2, raft foundation 3, concrete support columns 4, concrete horizontal tie beams 5, construction elevator foundation slab 6, capping beam 8, and U-shaped steel bars 14.
[0022] The concrete retaining pile 2 supports the original soil 1 outside the foundation pit on one side to provide space for the construction of the basement on the other side, and its top is connected by the capping beam 8 to form an integral retaining structure.
[0023] The concrete support column 4 is equipped with four continuous longitudinal steel bars 16. The two ends of the longitudinal steel bars 16 are anchored into the raft foundation 3 and the construction elevator foundation 6, respectively, and both ends of the longitudinal steel bars 16 are bent at 90°. Column stirrups 17 are set at equal intervals on the outside of the longitudinal steel bars 16. There are three concrete support columns 4. The three concrete support columns 4 form a triangular distributed support column structure system, which effectively transfers the load of the construction elevator 10 to the raft foundation 3.
[0024] Longitudinal reinforcement 18 and stirrups 19 are provided in the concrete horizontal tie beam 5. The two ends of the longitudinal reinforcement 18 are anchored into the concrete support column 4 to reduce the slenderness ratio of the concrete support column 4 and increase the overall stability of the concrete support column 4.
[0025] Holes are drilled on the top surface of the completed cap beam 8, and the residue inside the holes is cleaned. Chemical anchoring adhesive 20 is injected into the holes, and then U-shaped steel bars 14 are inserted into the holes. The top of the U-shaped steel bars 14 is pre-embedded in the construction elevator foundation slab 6. Part of the construction elevator foundation slab 6 is erected on the road hardening layer 9.
[0026] The vertical load of the construction elevator 10 is transferred to the construction elevator foundation plate 6 through the guide rail frame 11. The construction elevator foundation plate 6 then transfers the load to the concrete retaining piles 2 and the concrete support columns 4. Its horizontal load is transferred to the concrete exterior wall 7 of the main building through the wall-mounted frame 12, thereby enabling the construction elevator 10 to operate stably.
[0027] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.
Claims
1. A construction elevator foundation for a trench, characterized in that, include: The structure includes concrete retaining piles, a raft foundation, concrete support columns, a concrete horizontal tie beam, a construction elevator foundation slab, and a capping beam. The raft foundation is located at the bottom of the excavation pit. The concrete support columns are located at the pit, and there are multiple concrete support columns connected by the concrete horizontal tie beam. The capping beam is located on top of the concrete retaining piles. The construction elevator foundation slab is laid on top of the capping beam and the concrete support columns.
2. The construction elevator foundation for a trench as described in claim 1, characterized in that, The concrete support column is provided with longitudinal steel bars; the top of the longitudinal steel bars is anchored into the construction elevator foundation slab, and the bottom of the longitudinal steel bars is anchored into the raft foundation.
3. The construction elevator foundation for a trench as described in claim 2, characterized in that, The top and bottom of the longitudinal reinforcement bars of the column are respectively provided with bent sections.
4. The construction elevator foundation for a trench as described in claim 2, characterized in that, The column longitudinal reinforcement is provided with column stirrups at equal intervals on the outer side.
5. A construction elevator foundation for a trench as described in claim 2, characterized in that, There are three concrete support columns, which are arranged in a triangular pattern.
6. The construction elevator foundation for a trench as described in claim 2, characterized in that, The concrete horizontal tie beam is internally reinforced with longitudinal steel bars and stirrups; the two ends of the longitudinal steel bars are anchored into the concrete support column.
7. The construction elevator foundation for a trench as described in claim 1, characterized in that, The foundation slab of the construction elevator is equipped with foundation slab reinforcement and U-shaped reinforcement; the bottom of the U-shaped reinforcement is anchored into the capping beam.
8. A construction elevator foundation for a trench as described in claim 7, characterized in that, A hole is provided at the top of the cap beam, and chemical anchoring adhesive is injected into the hole; the bottom of the U-shaped steel bar is anchored into the hole.
9. A construction elevator foundation for a trench as described in claim 1, characterized in that, A guide rail frame is installed on the foundation slab of the construction elevator, and the construction elevator is installed on the guide rail frame. The guide rail frame is also connected to a wall-mounted frame; the wall-mounted frame is connected to a concrete exterior wall set on the raft foundation.
10. A construction elevator foundation for a trench as described in claim 9, characterized in that, Anchor bolts are installed inside the foundation plate of the construction elevator; the anchor bolts are connected to the guide rail frame.