Local support changing and reinforcing device for deep foundation pit profile steel
By using the partial reinforcement reinforcement device for deep foundation pit steel in deep foundation pit construction and the construction process of using inclined brace steel to replace horizontal concrete temporary braces, the problems of impact on the construction process, extended construction period and high costs in deep foundation pit construction are solved, and the construction progress is guaranteed and cost reduction is achieved.
Patent Information
- Application Number
- CN202422070767.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-26
AI Technical Summary
During construction, due to the temporary reinforcement of horizontal or oblique braces during deep foundation pits, the main structure construction process is affected, construction is difficult, delayed construction period and increased construction costs, and is not conducive to green construction.
The partial reinforcement device for deep foundation pit steel is adopted. By setting up multiple sets of oblique replacing steel in the foundation pit to replace the temporary replacing of horizontal concrete, the top of the oblique replacing steel is inserted into the outer wall layer and fully welded to the main ribs of the fence guard pile, and the bottom end is inserted into the bottom plate and connected to the reinforced cushion layer.
The construction area can be dismantled and dismantled at the same time as the completed area of the main body replacing structure, ensuring that the construction progress of the main body structure is not affected by the dismantling conditions, effectively saving construction period, reducing construction costs, and making the force transmission route more direct and safe.
Smart Images
Figure CN223017642U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a local replacement bracing and reinforcement device for steel sections in deep foundation pits. Background Art
[0002] The bracing inside the foundation pit needs to be removed in advance with the construction of the main structure. Generally, it is necessary to wait until the sectional construction of the main structure in the area is completed, and use reinforced concrete horizontal or inclined bracing for temporary reinforcement. When using a temporary replacement bracing technology with a horizontal or inclined concrete for reinforcement, the construction process of the main structure is affected, the construction is difficult, the construction period is delayed, and the construction cost is increased at the same time, which is not conducive to green construction. Summary of the Invention
[0003] The purpose of the utility model is to provide a local replacement bracing and reinforcement device for steel sections in deep foundation pits, which can effectively solve the problems in the background art.
[0004] The utility model is realized as follows: A local replacement bracing and reinforcement device for steel sections in deep foundation pits includes a foundation pit mixing pile. An inner concrete layer is arranged on the inner wall of the foundation pit mixing pile. A fence pile is arranged on the surface of the inner concrete layer. An outer wall layer is arranged on the outer wall of the fence pile. The outer wall layer surrounds to form a foundation pit. A plurality of inclined replacement steel sections are arranged inside the foundation pit. The inclined replacement steel sections are obliquely arranged inside the foundation pit. The top ends of the inclined replacement steel sections are sequentially inserted into the outer wall layer and the fence pile, and are fully welded to the main bars of the fence pile. A bottom plate is arranged at the bottom end of the foundation pit. The bottom ends of the inclined replacement steel sections are inserted into the bottom plate and are connected with a reinforced cushion layer located inside the bottom plate.
[0005] Optionally, a vertical water stop steel plate is arranged at the connection between the inclined replacement steel section and the outer wall layer.
[0006] Optionally, a horizontal water stop steel plate is arranged at the connection between the inclined replacement steel section and the bottom plate.
[0007] Optionally, a plain concrete force transfer layer and a plain soil compaction layer are sequentially arranged up and down at the connection between the bottom end of the outer wall layer and the bottom plate.
[0008] The local replacement bracing and reinforcement device for steel sections in deep foundation pits of the utility model adopts a construction process of using inclined replacement steel sections to replace the horizontal concrete temporary bracing, which can ensure that the later construction area can be demobilized simultaneously with the completed area of the main structure replacement bracing structure, ensure that the construction progress of the main structure is not affected by the demobilization conditions, effectively save the construction period, and reduce the construction cost; and uses temporary inclined replacement steel sections to transfer the pressure received by the supporting structure to the bottom plate and the reinforced cushion layer, and then to the main structure, and the force transfer route is more direct and safe. Brief Description of the Drawings
[0009] Figure 1It is a structural schematic diagram of the local replacement and bracing reinforcement device for steel sections in deep foundation pits of the present utility model.
[0010] Label description:
[0011] 1. Foundation pit mixing pile
[0012] 2. Inner concrete layer
[0013] 3. Fence protection pile
[0014] 4. Foundation pit
[0015] 5. Inclined replacement bracing steel section
[0016] 6. Outer wall layer
[0017] 7. Vertical water stop steel plate
[0018] 8. Floor slab
[0019] 9. Reinforced cushion
[0020] 10. Plain concrete load transfer layer
[0021] 11. Plain soil compaction layer
[0022] 12. Horizontal water stop steel plate Specific implementation mode
[0023] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0024] Please refer to Figure 1 , the present utility model also provides a local replacement and bracing reinforcement device for steel sections in deep foundation pits, including a foundation pit mixing pile 1, an inner concrete layer 2 is arranged on the inner wall of the foundation pit mixing pile 1, a fence protection pile 3 is arranged on the surface of the inner concrete layer 2, an outer wall layer 6 is arranged on the outer wall of the fence protection pile 3, the outer wall layer 6 surrounds to form a foundation pit 4, and a plurality of inclined replacement bracing steel sections 5 are arranged inside the foundation pit 4, the inclined replacement bracing steel sections 5 are obliquely arranged inside the foundation pit 4, the top ends of the inclined replacement bracing steel sections 5 are sequentially inserted into the outer wall layer 6 and the fence protection pile 3 and are fully welded to the main reinforcement of the fence protection pile 3, a floor slab 8 is arranged at the bottom end of the foundation pit 4, and the bottom ends of the inclined replacement bracing steel sections 5 are inserted into the floor slab 8 and are connected with a reinforced cushion 9 located inside the floor slab 8. A vertical water stop steel plate 7 is arranged at the connection between the inclined replacement bracing steel section 5 and the outer wall layer 6, and a horizontal water stop steel plate 12 is arranged at the connection between the inclined replacement bracing steel section 5 and the floor slab 8.
[0025] In this embodiment, by arranging multiple groups of inclined replacement strut steel profiles 5 inside the foundation pit 4 to support the inner wall of the foundation pit 4, the construction process of horizontal concrete temporary replacement struts is replaced. The top end of the inclined replacement strut steel profile 5 is inserted into the outer wall layer 6 and is fully welded to the main reinforcement of the fence pile 3 to ensure stability. At the same time, the bottom end of the inclined replacement strut steel profile 5 is inserted into the bottom plate 8 and is connected to the reinforced cushion layer 9 inside the bottom plate 8. Thus, the entire inclined replacement strut steel profile 5 plays a good supporting role for the inner wall of the foundation pit 4, replacing the construction process of horizontal concrete temporary replacement struts, which can ensure that the later construction area can be demounted simultaneously with the completed area of the main replacement strut structure, ensuring that the construction progress of the main structure is not affected by the demounting conditions, effectively saving the construction period and reducing the construction cost. Moreover, the inclined replacement strut steel profile transfers the pressure received by the support structure to the bottom plate 8 and the reinforced cushion layer 9, and then to the main structure, with a more direct and safe force transmission route.
[0026] In some embodiments, a plain concrete force transfer layer 10 and a plain soil compaction layer 11 are sequentially arranged up and down at the connection between the bottom end of the outer wall layer 6 and the bottom plate 8 to further enhance the stability inside the entire foundation pit 4.
[0027] The deep foundation pit steel profile partial replacement strut reinforcement device of the present utility model adopts the construction process of using inclined replacement strut steel profiles to replace horizontal concrete temporary replacement struts, which can ensure that the later construction area can be demounted simultaneously with the completed area of the main replacement strut structure, ensuring that the construction progress of the main structure is not affected by the demounting conditions, effectively saving the construction period and reducing the construction cost. Moreover, the temporary inclined replacement strut steel profile transfers the pressure received by the support structure to the bottom plate and the reinforced cushion layer, and then to the main structure, with a more direct and safe force transmission route.
[0028] The above are only the preferred embodiments of the present utility model and are not used to limit the protection scope of the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A local bracing reinforcement device for deep foundation pit steel, characterized in that: The invention comprises a foundation pit mixing pile (1), wherein the inner wall of the foundation pit mixing pile (1) is provided with an inner concrete layer (2), the surface of the inner concrete layer (2) is provided with a fence guard pile (3), the outer wall of the fence guard pile (3) is provided with an outer wall layer (6), the outer wall layer (6) surrounds the foundation pit (4), and a plurality of inclined bracing steel sections (5) are provided inside the foundation pit (4), the inclined bracing steel sections (5) are obliquely arranged inside the foundation pit (4), the top ends of the inclined bracing steel sections (5) are sequentially inserted into the outer wall layer (6) and the fence guard pile (3), and are fully welded to the main reinforcement of the fence guard pile (3), and the bottom end of the foundation pit (4) is provided with a bottom plate (8), the bottom ends of the inclined bracing steel sections (5) are inserted into the bottom plate (8) and are connected to a reinforcement cushion layer (9) located inside the bottom plate (8).
2. The deep foundation pit steel local support replacement reinforcement device according to claim 1 is characterized in that: A vertical water-stop steel plate (7) is provided at the connection between the diagonal bracing steel (5) and the outer wall layer (6).
3. The local bracing replacement and reinforcement device for deep foundation pit steel according to claim 2 is characterized in that: A horizontal water-stop steel plate (12) is provided at the connection between the diagonal bracing steel (5) and the bottom plate (8).
4. The local bracing replacement and reinforcement device for deep foundation pit steel according to claim 1 is characterized in that: A plain concrete force transfer layer (10) and a plain soil filling layer (11) are sequentially arranged above and below the connection between the bottom end of the outer wall layer (6) and the bottom plate (8).