Rigid frame protection structure for crossing existing underground building
By setting up a casing structure between the support structure and the rigid frame, positioning and connecting steel bars, and filling grouting materials, the problem of insufficient bearing capacity of the rigid frame protective structure in complex underground buildings in the prior art is solved, and the stability and safety are improved.
Patent Information
- Application Number
- CN202422126896.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The existing rigid frame protective structure lacks load capacity when crossing complex underground buildings and cannot meet the needs of pipeline relocation.
The casing structure and positioning steel bars are used to connect to the support structure and rigid frame. A mesh structure is formed by connecting the steel bars, and grouting material is filled with grouting pipes to enhance the stability of the support structure and rigid frame.
It improves the bearing capacity under complex underground building conditions, meets the requirements of pipeline relocation, and ensures the position stability of the bearing structure during concrete pouring.
Smart Images
Figure CN223176785U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rigid frame protection, and more specifically, to a rigid frame protection structure for crossing existing underground buildings. Background Art
[0002] In the existing rigid frame protection technology, it mainly includes a cover plate and side walls. The cover plate is arranged on the side walls, and the cover plate and the side walls together form a culvert. Under the condition of crossing complex underground buildings, the bearing capacity of the culvert is relatively low, resulting in the problem that the pipeline relocation conditions cannot be met. Therefore, there is an urgent need for a rigid frame protection structure for crossing existing underground buildings to solve the problem that the bearing capacity of the culvert is relatively low under the condition of crossing complex underground buildings, resulting in the inability to meet the pipeline relocation conditions. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a rigid frame protection structure for crossing existing underground buildings to improve the above problems. To achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0004] A rigid frame protection structure for crossing existing underground buildings includes: a rigid frame is arranged on the top of the pile cap structure; a plurality of casing structures, each casing structure is arranged inside the top of the pile cap structure, each casing structure is vertically arranged along the height direction of the rigid frame, a plurality of connecting steel bars are arranged inside each casing structure, one end of each connecting steel bar is connected to the inside of one casing structure, the other ends of the connecting steel bars respectively extend to the bottom of the rigid frame and the bottom of the pile cap structure, each two adjacent casing structures are connected by positioning steel bars, the plurality of casing structures and the positioning steel bars form a net, and a grouting pipe is arranged on the top of each casing structure, and the grouting pipe is used to fill grout in the casing structure.
[0005] Preferably, the casing structure includes a first casing and a second casing, the first casing and the second casing are horizontally arranged along the width direction of the rigid frame, and the top and bottom of the first casing are connected to the second casing through the positioning steel bars.
[0006] Preferably, the casing structure includes a third casing, the third casing is horizontally arranged along the length direction of the rigid frame with the first casing, the third casing is arranged opposite to the second casing, and the top and bottom of the third casing are connected to the first casing and the second casing through the positioning steel bars.
[0007] Preferably, the casing structure includes a fourth casing, which is horizontally arranged along the width direction of the rigid frame with the third casing. The fourth casing is arranged opposite to the first casing, and both the top and bottom of the fourth casing are connected to the first casing, the second casing, and the third casing through the positioning steel bars.
[0008] Preferably, the connecting steel bars include pile cap connecting steel bars, which are vertically arranged along the height direction of the rigid frame. One end of the pile cap connecting steel bars is arranged inside the bottom of the first casing, and the other end is connected to the bottom of the pile cap structure.
[0009] Preferably, the connecting steel bars include rigid frame connecting steel bars, which are vertically arranged along the height direction of the rigid frame. One end of the rigid frame connecting steel bars is arranged inside the top of the first casing, and the other end is connected to the bottom of the rigid frame.
[0010] Preferably, the grouting pipe includes a pressure grouting pipe and a slurry outlet pipe. The pressure grouting pipe is arranged on the top of the first casing, and the slurry outlet pipe is arranged on the top of the second casing. The setting directions of the grouting port of the pressure grouting pipe and the slurry outlet of the slurry outlet pipe are opposite.
[0011] Preferably, the grouting pipe includes a first connecting pipe and a second connecting pipe. One end of the first connecting pipe is arranged inside the first casing, and the other end is arranged inside the second casing. The first connecting pipe and the second connecting pipe are arranged in parallel along the length direction of the rigid frame.
[0012] Preferably, the rigid frame is a precast portal rigid frame.
[0013] Preferably, the pile cap structure includes a pile cap body and a pile group. The top end of the pile cap body is connected to the bottom end of the rigid frame, and the bottom end of the pile cap body is connected to the top end of the pile group through pile foundation steel bars.
[0014] The beneficial effects of this structure are:
[0015] The utility model introduces a casing structure and positioning steel bars. The casing structure is connected to the pile cap structure and the rigid frame respectively through a plurality of connecting steel bars. The casing structure ensures the stability and safety between the pile cap structure and the rigid frame. The positioning steel bars position the position of the casing structure, ensuring that the pile cap structure does not shift during concrete pouring. The pile cap structure and the rigid frame solve the problem in the prior art that complex underground buildings cannot be crossed. The combined setting of the casing structure, the connecting steel bars, the grouting pipe and the positioning steel bars solves the problem that in the condition of crossing complex underground buildings, the bearing capacity of the culvert in the prior art is low, resulting in the inability to meet the conditions for pipeline relocation.
[0016] Other features and advantages of the utility model will be described in the subsequent specification. Moreover, some of them will become obvious from the specification or can be understood by implementing the embodiments of the utility model. The objectives and other advantages of the utility model can be realized and obtained by the structures specifically pointed out in the written specification, claims, and drawings. Brief Description of the Drawings
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.
[0018] Figure 1 is the overall structure schematic diagram of the utility model;
[0019] Figure 2 is the front view of the overall structure of the utility model;
[0020] Figure 3 Based on Figure 2 is the enlarged structure schematic diagram of area A;
[0021] Figure 4 is the structure schematic diagram formed by the casing structure, the connecting steel bars and the positioning steel bars of the utility model;
[0022] Figure 5 is the structure schematic diagram of the pile cap and the pile group of the utility model;
[0023] Markings in the figure:
[0024] 1. Cap structure; 2. Rigid frame; 3. Casing structure; 4. Connecting steel bars; 5. Positioning steel bars; 6. Grouting pipes; 7. Pile foundation steel bars; 8. Waterproof layer; 11. Cap body; 12. Pile group; 31. First casing; 32. Second casing; 33. Third casing; 34. Fourth casing; 41. Cap connecting steel bars; 42. Rigid frame connecting steel bars; 61. Pressurized grouting pipe; 62. Grout outlet pipe; 63. First connecting pipe; 64. Second connecting pipe. Detailed implementation manners
[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. The components of the embodiments of the present utility model described and illustrated herein usually can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.
[0026] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used for differential description and cannot be construed as indicating or implying relative importance.
[0027] As Figure 1As shown in the figure, a rigid frame protection structure for spanning an existing underground building includes: a rigid frame 2 is provided on the top of the bearing platform structure 1; a plurality of casing structures 3, each of the casing structures 3 is arranged inside the top of the bearing platform structure 1, each of the casing structures 3 is vertically arranged along the height direction of the rigid frame 2, a plurality of connecting steel bars 4 are arranged inside each of the casing structures 3, one end of each of the connecting steel bars 4 is connected to the inside of one of the casing structures 3, the other ends of the connecting steel bars 4 respectively extend to the bottom of the rigid frame 2 and the bottom of the bearing platform structure 1, and each two adjacent casing structures 3 are connected by positioning steel bars 5. The plurality of casing structures 3 and the positioning steel bars 5 form a network. A grouting pipe 6 is provided on the top of each of the casing structures 3, and the grouting pipe 6 is used to fill grouting material into the casing structures 3. The implementation steps of this structure are as follows: after setting the corresponding positions of the casing structures 3, the connecting steel bars 4 and the positioning steel bars 5 in the bearing platform structure 1, the top surface of the bearing platform structure 1 is fully wetted, high-strength non-shrinking mortar is laid, the rigid frame 2 is hoisted onto the bearing platform structure 1, the verticality and elevation of the bearing platform structure 1 and the rigid frame 2 are measured, and after adjusting the verticality, grouting material is filled into the casing structures 3 through the grouting pipes 6, solving the problem that under the condition of spanning complex underground buildings, the bearing capacity of existing culverts is low, resulting in the inability to meet the conditions for pipeline relocation.
[0028] As Figure 2 and Figure 3 shown in the figure, the casing structure 3 includes a first casing 31 and a second casing 32. The first casing 31 and the second casing 32 are horizontally arranged along the width direction of the rigid frame 2. The top and bottom of the first casing 31 are connected to the second casing 32 through the positioning steel bars 5. In this structure, the first casing 31 and the second casing 32 are used to connect between the plurality of connecting steel bars 4 to ensure the stability and safety between the bearing platform structure 1 and the rigid frame 2.
[0029] As Figure 4As shown, the casing structure 3 includes a third casing 33. The third casing 33 and the first casing 31 are horizontally arranged along the length direction of the rigid frame 2. The third casing 33 and the second casing 32 are arranged opposite to each other. Both the top and bottom of the third casing 33 are connected to the first casing 31 and the second casing 32 through the positioning steel bars 5. Further, the casing structure 3 includes a fourth casing 34. The fourth casing 34 and the third casing 33 are horizontally arranged along the width direction of the rigid frame 2. The fourth casing 34 and the first casing 31 are arranged opposite to each other. Both the top and bottom of the fourth casing 34 are connected to the first casing 31, the second casing 32, and the third casing 33 through the positioning steel bars 5. In this structure, the interiors of the first casing 31, the second casing 32, the third casing 33, and the fourth casing 34 are all used for filling grouting material. The positioning steel bars 5 are used to accurately position every two adjacent casing structures 3, ensuring that the pile cap structure 1 does not shift during concrete pouring.
[0030] To clarify the specific structure of the connecting steel bar 4, the connecting steel bar 4 includes a pile cap connecting steel bar 41. The pile cap connecting steel bar 41 is vertically arranged along the height direction of the rigid frame 2. One end of the pile cap connecting steel bar 41 is arranged inside the bottom of the first casing 31, and the other end of the pile cap connecting steel bar 41 is connected to the bottom of the pile cap structure 1. Preferably, the length of the pile cap connecting steel bar 41 extending into the first casing 31 is not less than 10 times the diameter of the pile cap connecting steel bar 41.
[0031] Further, the connecting steel bar 4 includes a rigid frame connecting steel bar 42. The rigid frame connecting steel bar 42 is vertically arranged along the height direction of the rigid frame 2. One end of the rigid frame connecting steel bar 42 is arranged inside the top of the first casing 31, and the other end of the rigid frame connecting steel bar 42 is connected to the bottom of the rigid frame 2. Preferably, the length of the rigid frame connecting steel bar 42 extending into the first casing 31 is not less than 10 times the diameter of the rigid frame connecting steel bar 42.
[0032] To clarify the structure of the grouting pipe 6, the grouting pipe 6 includes a pressure grouting pipe 61 and a slurry outlet pipe 62. The pressure grouting pipe 61 is arranged on the top of the first casing 31, and the slurry outlet pipe 62 is arranged on the top of the second casing 32. The setting directions of the grouting port of the pressure grouting pipe 61 and the slurry outlet of the slurry outlet pipe 62 are opposite.
[0033] In the present utility model, the grouting pipe 6 includes a first connecting pipe 63 and a second connecting pipe 64. One end of the first connecting pipe 63 is disposed within the first sleeve 31, and the other end of the first connecting pipe 63 is disposed within the second sleeve 32. The first connecting pipe 63 and the second connecting pipe 64 are arranged in parallel along the length direction of the rigid frame 2. The first connecting pipe 63 is used to connect the first sleeve 31 and the second sleeve 32. When the first sleeve 31 is filled with grouting material through the grouting pipe 61, the grouting material in the first sleeve 31 flows along the first connecting pipe 63 into the second sleeve 32. After the first sleeve 31 and the second sleeve 32 are both filled with grouting material, the excess grouting material is discharged through the grout outlet pipe 62 to ensure that the first connecting pipe 63, the first sleeve 31, and the second sleeve 32 are filled densely.
[0034] Preferably, the rigid frame 2 is a precast portal rigid frame. A waterproof layer 8 is provided on the precast portal rigid frame, and the waterproof layer 8 effectively prevents moisture from penetrating into the interior of the precast portal rigid frame, the bearing platform structure 1, and the pile group 12.
[0035] As Figure 5 shown, the bearing platform structure 1 includes a bearing platform body 11 and a pile group 12. The top end of the bearing platform body 11 is connected to the bottom end of the rigid frame 2, and the bottom end of the bearing platform body 11 is connected to the top end of the pile group 12 through pile foundation steel bars 7. The bearing platform body 11 connects the pile group 12 to form a whole, and the bearing platform body 11 evenly distributes the load transmitted by the rigid frame 2 to the pile group 12. Preferably, the pile group 12 is composed of multiple pile foundations, and the pile diameter of the pile foundation is not less than 0.8 m; the pile group 12 is arranged in a single row of piles in a strip shape, and a double row of piles or multiple rows of piles are arranged when the span is large and there are continuous multiple holes.
[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
[0037] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or replacements, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims
1. A rigid frame protection structure for spanning existing underground buildings, characterized in that, Comprising: A bearing platform structure (1), on the top end of which a rigid frame (2) is provided; A plurality of casing structures (3), each of which is arranged inside the top of the bearing platform structure (1), each of the casing structures (3) is vertically arranged along the height direction of the rigid frame (2), a plurality of connecting steel bars (4) are arranged inside each of the casing structures (3), one end of each of the connecting steel bars (4) is connected to the inside of one of the casing structures (3), the other ends of the connecting steel bars (4) respectively extend to the bottom of the rigid frame (2) and the bottom of the bearing platform structure (1), and each two adjacent casing structures (3) are connected by positioning steel bars (5). The plurality of casing structures (3) and the positioning steel bars (5) form a network. A grouting pipe (6) is arranged on the top of each of the casing structures (3), and the grouting pipe (6) is used to fill grout into the casing structures (3).
2. The rigid frame protection structure for spanning existing underground buildings according to claim 1, characterized in that, The casing structure (3) includes a first casing (31) and a second casing (32), the first casing (31) and the second casing (32) are horizontally arranged along the width direction of the rigid frame (2), and the top and bottom of the first casing (31) are connected to the second casing (32) by the positioning steel bars (5).
3. The rigid frame protection structure for spanning existing underground buildings according to claim 2, characterized in that, The casing structure (3) includes a third casing (33), the third casing (33) is horizontally arranged along the length direction of the rigid frame (2) with the first casing (31), the third casing (33) is arranged opposite to the second casing (32), and the top and bottom of the third casing (33) are connected to the first casing (31) and the second casing (32) by the positioning steel bars (5).
4. The rigid frame protection structure for spanning existing underground buildings according to claim 3, characterized in that, The casing structure (3) includes a fourth casing (34), the fourth casing (34) is horizontally arranged along the width direction of the rigid frame (2) with the third casing (33), the fourth casing (34) is arranged opposite to the first casing (31), and the top and bottom of the fourth casing (34) are connected to the first casing (31), the second casing (32) and the third casing (33) by the positioning steel bars (5).
5. The rigid frame protection structure for spanning existing underground buildings according to claim 2, characterized in that, The connecting steel bar (4) includes a bearing platform connecting steel bar (41), the bearing platform connecting steel bar (41) is vertically arranged along the height direction of the rigid frame (2), one end of the bearing platform connecting steel bar (41) is arranged inside the bottom of the first casing (31), and the other end of the bearing platform connecting steel bar (41) is connected to the bottom of the bearing platform structure (1).
6. The rigid frame protection structure for spanning existing underground buildings according to claim 2, characterized in that, The connecting steel bar (4) includes a rigid frame connecting steel bar (42), the rigid frame connecting steel bar (42) is vertically arranged along the height direction of the rigid frame (2), one end of the rigid frame connecting steel bar (42) is arranged inside the top of the first casing (31), and the other end of the rigid frame connecting steel bar (42) is connected to the bottom of the rigid frame (2).
7. The rigid frame protection structure for spanning existing underground buildings according to claim 3, characterized in that, The grouting pipe (6) includes a grouting pipe (61) and a slurry outlet pipe (62). The grouting pipe (61) is arranged on the top of the first sleeve (31), and the slurry outlet pipe (62) is arranged on the top of the second sleeve (32). The setting direction of the grouting port of the grouting pipe (61) is opposite to that of the slurry outlet of the slurry outlet pipe (62).
8. The rigid frame protection structure for spanning existing underground buildings according to claim 3, characterized in that The grouting pipe (6) includes a first connecting pipe (63) and a second connecting pipe (64). One end of the first connecting pipe (63) is arranged in the first sleeve (31), and the other end of the first connecting pipe (63) is arranged in the second sleeve (32). The first connecting pipe (63) and the second connecting pipe (64) are arranged in parallel along the length direction of the rigid frame (2).
9. The rigid frame protection structure for spanning existing underground buildings according to claim 1, characterized in that, The rigid frame (2) is a precast portal rigid frame.
10. The rigid frame protection structure for spanning existing underground buildings according to claim 1, characterized in that The pile cap structure (1) includes a pile cap body (11) and a pile group (12). The top end of the pile cap body (11) is connected to the bottom end of the rigid frame (2), and the bottom end of the pile cap body (11) is connected to the top end of the pile group (12) through pile foundation steel bars (7).