CN215329921U - Simple closed soil nail connecting joint - Google Patents
Simple closed soil nail connecting joint Download PDFInfo
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- CN215329921U CN215329921U CN202120948605.9U CN202120948605U CN215329921U CN 215329921 U CN215329921 U CN 215329921U CN 202120948605 U CN202120948605 U CN 202120948605U CN 215329921 U CN215329921 U CN 215329921U
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- soil
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- soil nail
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Abstract
The utility model discloses a simple closed soil nail connecting node which comprises a steel bar mesh and a soil nail hole, wherein soil nail steel bars are arranged in the soil nail hole and poured with grouting bodies, and the soil nail steel bars penetrate through the middle parts of the grouting bodies; one end of the soil nailing reinforcing steel bar close to the reinforcing mesh is provided with a closed hook formed by bending and a welding part for welding and sealing the closed hook; reinforcing ribs penetrate through the closed hooks and are positioned on the outer side surfaces of the reinforcing mesh; the closed hook of the soil nailing reinforcing steel bar compresses the reinforcing rib, and the reinforcing rib compresses the reinforcing mesh; concrete surface layers are filled on the upper part and the lower part of the reinforcing mesh. The utility model reduces the labor intensity, saves the construction time, improves the working efficiency, ensures the stable connection of the soil nails and the reinforced concrete surface layer, eliminates the potential safety hazard, and has the advantages of simple method, low cost, easy operation and the like.
Description
Technical Field
The utility model relates to the technical field of constructional engineering, in particular to a soil nail connecting node.
Background
Along with the continuous development of urban construction and the continuous deepening of a structure foundation, the requirement on the supporting quality of a deep foundation pit is also improved, and the soil nailing wall has the advantages of simple construction equipment and process, strong adaptability to the shape of the foundation pit, better economy, capability of realizing open excavation without a supporting system in the pit, basically no space in the site occupied by a supporting structure and the like, so that the application of the soil nailing wall supporting technology is also increasingly wide.
The soil nailing wall comprises a surface layer, soil nails, a reinforced in-situ soil body and other systems, wherein the surface layer load is integrated with the soil nails and the reinforced in-situ soil body by means of a reinforcing mesh and reinforcing rib force transmission, the connection nodes of the soil nails and the reinforcing ribs are key nodes, and the connection quality of the connection nodes directly influences the overall stability of the soil nails and the sprayed reinforced concrete surface layer.
At present, the general adoption of being connected of soil nail and strengthening rib adds a short "L" shaped steel bar welding into little "T" word with soil nail reinforcing bar tip preparation "L" type in the workshop, soil nail and strengthening rib are connected and are formed "T" style of calligraphy node and must weld on soil nail wall is domatic, press the strengthening rib on little "T" word of soil nail tip, adjust little "T" word and strengthening rib depth of parallelism then welding, the construction degree of difficulty is big, waste time and labor, and often appear welded welding seam length not enough, quality problems such as the welding seam is not full or the work of stealing subtracts the material, thereby directly influence soil nail wall supporting construction's overall stability, buried great potential safety hazard for the engineering.
SUMMERY OF THE UTILITY MODEL
The utility model provides a simple closed soil nail connecting node, which aims to solve the problem of high labor difficulty in connecting a soil nail and a reinforcing rib and simplify the process of connecting the soil nail and the reinforcing rib.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows.
The simple closed soil nail connecting node comprises a steel bar mesh paved above an in-situ soil body and a soil nail hole formed in the in-situ soil body, wherein soil nail steel bars are arranged in the soil nail hole and poured with a grouting body, and the soil nail steel bars penetrate through the middle of the grouting body; one end of the soil nailing steel bar close to the steel bar mesh is provided with a closed hook formed by bending and a welding part for welding and sealing the closed hook; reinforcing ribs penetrate through the closed hooks and are positioned on the outer side surfaces of the reinforcing mesh; the closed hook of the soil nailing reinforcing steel bar compresses the reinforcing rib and the reinforcing rib compresses the reinforcing mesh; concrete surface layers are filled on the upper part and the lower part of the reinforcing mesh.
According to the technical scheme, the welding portion of the soil nailing reinforcing steel bar is located in the grouting body, and the closed hook is located in the concrete surface layer.
Further optimize technical scheme, the welding part is parallel with the soil nail reinforcing bar.
Further optimizing the technical scheme, the closed hook is a drop-shaped ring.
Due to the adoption of the technical scheme, the technical progress of the utility model is as follows.
The simple closed soil nail connecting node can be formed in a processing workshop at one time, the process of welding reinforcing ribs on the slope surface of a soil nail wall is omitted, the problem of welding and unhooking is avoided, and the performance is stable. The method has the advantages of simple method, low cost, easy operation and the like, reduces the labor intensity, saves the construction time, improves the working efficiency, ensures the stable connection of the soil nails and the reinforced concrete surface layer, and eliminates the potential safety hazard.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a stiffener passing through a closed end hook according to the present invention;
wherein: 1. soil nailing steel bars, 2, closed hooks, 3, welding parts, 4, reinforcing ribs, 5, reinforcing mesh, 6, a concrete surface layer, 7, soil nailing holes, 8 and grouting bodies.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings.
The simple closed soil nail connecting node is shown in fig. 1 to 2 and comprises soil nail steel bars 1, closed hooks 2, welding parts 3, reinforcing ribs 4, reinforcing mesh 5, a concrete surface layer 6, soil nail holes 7 and grouting bodies 8.
A reinforcing mesh 5 is laid above the in-situ soil body. The in-situ soil body is provided with a soil nail hole 7, and a soil nail steel bar 1 is arranged in the soil nail hole 7; the grout body 8 is poured in the soil nail hole 7, and the soil nail steel bar 1 penetrates through the middle of the grout body 8.
One end of the soil nailing reinforcing steel bar 1 close to the reinforcing mesh 5 is provided with a closed hook 2 and a welding part 3, and the closed hook 2 is a drop-shaped ring formed by bending the soil nailing reinforcing steel bar 1; the closed hook 2 is located within the concrete facing 6. The welded portion 3 of the soil nailing reinforcing bar 1 is located in the grout 8 and is a position where the closed hook 2 is welded and sealed, and therefore, the welded portion 3 is parallel to the soil nailing reinforcing bar 1.
Reinforcing ribs 4 penetrate through the closed-end bent hooks 2, and the reinforcing ribs 4 are positioned on the outer side face of the reinforcing mesh 5. The closed hook 2 of the soil nailing reinforcing steel bar 1 compresses the reinforcing rib 4, and the reinforcing rib 4 compresses the reinforcing mesh 5. Concrete surface layers 6 are filled on the upper and lower sides of the reinforcing mesh 5.
When the soil nailing device is actually used, the reinforcing mesh 5 is laid on an in-situ soil body, a plurality of soil nail holes 7 are formed in the in-situ soil body through meshes of the reinforcing mesh 5, the bent and welded soil nail steel bars 1 are placed in the soil nail holes 7, the reinforcing ribs 4 are arranged in the closed hooks 2 in a penetrating mode, the soil nail steel bars 1 are pushed towards the inside of the in-situ soil body, the closed hooks 2 press the reinforcing ribs 4, meanwhile, the reinforcing ribs 4 press the reinforcing mesh 5, and the soil nail steel bars 1 are kept to be located in the middle of the soil nail holes 7. The reinforcing ribs 4, the closed hooks 2 and the reinforcing mesh 5 can be welded together to further increase the overall stability. And then pouring grout 8 into the soil nail holes 7, repeating the steps to sequentially install other soil nail reinforcing steel bars 1, and finally connecting the soil nail reinforcing steel bars 1 in series by the reinforcing ribs 4 to enable the soil nail reinforcing steel bars 1 to be connected with each other.
Claims (4)
1. Simple and easy closed soil nail connected node, including lay reinforcing bar net (5) of locating the normal position soil body top and set up soil nail hole (7) on the normal position soil body, its characterized in that: soil nailing reinforcing steel bars (1) are arranged in the soil nailing holes (7) and grouting bodies (8) are poured, and the soil nailing reinforcing steel bars (1) penetrate through the middle parts of the grouting bodies (8); one end of the soil nailing reinforcing steel bar (1) close to the reinforcing mesh (5) is provided with a closed hook (2) formed by bending and a welding part (3) for welding and sealing the closed hook (2); reinforcing ribs (4) penetrate through the closed hooks (2), and the reinforcing ribs (4) are positioned on the outer side surface of the reinforcing mesh (5); the closed hooks (2) of the soil nailing reinforcing steel bars (1) compress the reinforcing steel bars (4), and the reinforcing steel bar meshes (5) are compressed by the reinforcing steel bars (4); concrete surface layers (6) are filled on the upper and lower sides of the reinforcing mesh (5).
2. The simple closed soil nail connection node according to claim 1, wherein: the welding part (3) of the soil nailing reinforcing steel bar (1) is positioned in the grouting body (8), and the closed hook (2) is positioned in the concrete surface layer (6).
3. The simple closed soil nail connection node according to claim 2, wherein: the welding part (3) is parallel to the soil nailing reinforcing steel bar (1).
4. The simple closed soil nail connection node according to claim 2, wherein: the closed hook (2) is a drop-shaped ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120948605.9U CN215329921U (en) | 2021-05-06 | 2021-05-06 | Simple closed soil nail connecting joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120948605.9U CN215329921U (en) | 2021-05-06 | 2021-05-06 | Simple closed soil nail connecting joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215329921U true CN215329921U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120948605.9U Active CN215329921U (en) | 2021-05-06 | 2021-05-06 | Simple closed soil nail connecting joint |
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| Country | Link |
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| CN (1) | CN215329921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592528A (en) * | 2022-04-11 | 2022-06-07 | 北京京水建设集团有限公司 | Foundation pit excavation supporting structure |
-
2021
- 2021-05-06 CN CN202120948605.9U patent/CN215329921U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592528A (en) * | 2022-04-11 | 2022-06-07 | 北京京水建设集团有限公司 | Foundation pit excavation supporting structure |
| CN114592528B (en) * | 2022-04-11 | 2023-12-26 | 北京京水建设集团有限公司 | Foundation pit excavation supporting structure |
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