Multi-layer composite anti-corrosion concrete duct piece

Abstract

The utility model discloses a multi-layer composite anti-corrosion concrete pipe piece, and relates to the technical field of concrete pipe pieces. The concrete duct piece comprises a concrete duct piece body, the concrete duct piece body comprises an inner side, a middle layer is arranged on the side face of the inner layer, an outer layer is arranged on the side face of the middle layer, the inner layer is a high-ductility concrete layer, the middle layer is a common concrete reinforcing steel bar layer, and the outer layer is an ultra-high performance concrete layer. A positioning structure is arranged on the concrete segment body. The two adjacent concrete segment bodies can be positioned and mounted through the positioning structures, so that the mounting precision is improved, deviation occurring during splicing mounting is reduced, and the using effect of the concrete segment is better facilitated.

Description

Technical Field

[0001] This utility model relates to the field of concrete pipe segment technology, and in particular to a multi-layer composite anti-corrosion concrete pipe segment. Background Technology

[0002] Concrete segments are precast concrete components made of a mixture of cement, gravel, sand, and water. They are widely used in urban underground drainage and other projects. During use, they play a supporting and protective role, effectively withstanding loads such as soil pressure and groundwater pressure, and ensuring the stability and safety of underground projects.

[0003] When using existing concrete segments, multiple segments need to be spliced ​​together and fixed with bolts to form a tubular shape. When splicing them one by one, the concrete segments need to be aligned manually before splicing, which is quite troublesome and prone to positional deviations. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that when splicing concrete pipe segments one by one, it is necessary to manually align the segments before splicing, which is troublesome and prone to positional deviation. This utility model provides a multi-layer composite anti-corrosion concrete pipe segment.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A multi-layer composite waterproof concrete segment includes a concrete segment body, the concrete segment body includes an inner layer, an intermediate layer is disposed on the side of the inner layer, and an outer layer is disposed on the side of the intermediate layer. The inner layer is a high-ductility concrete layer, the intermediate layer is an ordinary concrete reinforcement layer, and the outer layer is an ultra-high performance concrete layer. A positioning structure is disposed on the concrete segment body.

[0007] By adopting the above technical solution, the positioning structure can play a role in positioning and splicing when splicing concrete segments, reducing deviations, making it more convenient to use, and improving splicing efficiency.

[0008] Furthermore, the positioning structure includes a positioning groove formed at one end of the concrete segment body, and a positioning strip adapted to the positioning groove is fixed at the other end of the concrete segment body. Both the positioning groove and the positioning strip are convex in shape.

[0009] By adopting the above technical solution, the positioning structure can play a positioning role, making it easier to connect two adjacent concrete pipe segments.

[0010] Furthermore, the concrete segment body has a positioning groove at one end and a fixing groove at the other end. The positioning strip has an installation groove on its side, in which a fixing pipe is fixed. A fixing post is inserted into the fixing groove, and the fixing post is threadedly connected to the fixing pipe.

[0011] By adopting the above technical solution, the fixing column and fixing pipe can fix two adjacent concrete pipe segments, and the fixing effect is good.

[0012] Furthermore, the upper end of the concrete segment body is provided with an insertion groove, and the lower end of the concrete segment body is fixed with an insertion block that matches the insertion groove.

[0013] By adopting the above technical solution, inserting the plug into the plug slot can play a role in positioning and reinforcement, and improve the connection effect between two adjacent concrete pipe segments.

[0014] Furthermore, the concrete segment body is threaded with a reinforcing bolt on its side, the reinforcing bolt extends into the insertion groove, and the insertion block has a reinforcing hole on its side that matches the reinforcing bolt.

[0015] By adopting the above technical solution, the connection effect between two adjacent concrete pipe segments can be improved by using reinforcing bolts in conjunction with reinforcing holes.

[0016] Furthermore, a constraint groove is provided on the side of the concrete segment body, and a constraint steel ring is provided inside the constraint groove. A connecting strip is fixed to one end of the constraint steel ring.

[0017] By adopting the above technical solution, after splicing multiple concrete pipe segments into a tubular shape, the constraint steel ring is connected to the constraint groove. The constraint steel ring can improve the connection effect between the concrete pipe segments.

[0018] Furthermore, a connecting hole is provided at the other end of the constraint steel ring, and a connecting post is slidably inserted into the connecting strip, with the connecting post threadedly connected inside the connecting hole.

[0019] By adopting the above technical solution, the two ends of the constraint steel ring can be fixed together by using the connecting column, connecting strip and connecting hole, so as to constrain the concrete segment body.

[0020] Furthermore, a waterproof layer, which is a waterproof coating, is provided between two adjacent concrete segments.

[0021] By adopting the above technical solution, the waterproof layer can improve the waterproof effect at the joint, thereby reducing water seepage.

[0022] In summary, this application includes at least one of the following beneficial effects:

[0023] 1. In this application, when connecting two adjacent concrete pipe segments, a positioning strip at the end of one concrete pipe segment is inserted into a positioning groove at the end of the adjacent concrete pipe segment, ensuring the groove aligns with the fixing pipe. A fixing post is then inserted into the groove, and the post is tightened to connect it to the fixing pipe. This process is repeated to connect two adjacent concrete pipe segments until a tubular structure is formed. This positioning structure allows for precise positioning of adjacent concrete pipe segments, improving installation accuracy, reducing deviations during splicing, and ultimately enhancing the performance of the concrete pipe segments.

[0024] 2. In this application, after the concrete segment bodies are spliced ​​into a tubular shape, a restraining steel ring is fitted onto the concrete segment ring, so that the restraining steel ring is located inside the restraining groove. Then, a connecting post is inserted into the connecting strip and screwed into the connecting hole at the other end of the restraining steel ring, thereby achieving the connection between the two ends of the connecting ring. The restraining ring can improve the connection effect between multiple concrete segment bodies, thereby improving the integrity of the tubular concrete segment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the assembly of concrete segments in this application;

[0026] Figure 2 This is a structural schematic diagram of the concrete segments of this application;

[0027] Figure 3 This is a three-dimensional structural diagram of the concrete segment in this application;

[0028] Figure 4 This application Figure 1 Enlarged diagram of point A in the middle.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Concrete segment body; 101. Inner layer; 102. Intermediate layer; 103. Outer layer; 2. Positioning groove; 3. Positioning strip; 4. Insertion groove; 5. Insertion block; 6. Fixing groove; 7. Fixing column; 8. Installation groove; 9. Fixing pipe; 10. Reinforcing bolt; 11. Constraint groove; 12. Constraint steel ring; 13. Connecting strip; 14. Connecting column; 15. Waterproof layer. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] This application discloses a multi-layer composite anti-corrosion concrete pipe segment.

[0033] Reference Figures 1-3A multi-layer composite anti-corrosion concrete pipe segment includes a concrete pipe segment body 1, which includes an inner layer 101, an intermediate layer 102 on the side of the inner layer 101, and an outer layer 103 on the side of the intermediate layer 102. The inner layer 101 is a high-ductility concrete layer, the intermediate layer 102 is an ordinary concrete reinforcement layer, and the outer layer 103 is a high-strength concrete layer. A positioning structure is provided on the concrete pipe segment body 1.

[0034] When using this concrete segment, multiple concrete segment bodies 1 are connected together by a positioning structure and spliced ​​into multiple layers to form a tubular structure, which is then used in underground engineering. The inner layer 101, made of high-ductility concrete, improves the crack resistance of the concrete segment body 1, while the outer layer 103, made of high-strength concrete, provides good corrosion resistance. During the splicing of the concrete segment bodies 1, the positioning structure plays a role in positioning and splicing, reducing deviations, facilitating use, and improving splicing efficiency.

[0035] Reference Figure 2 and Figure 4 The positioning structure includes a positioning groove 2 opened at one end of the concrete segment body 1, and a positioning strip 3 that is adapted to the positioning groove 2 fixed at the other end of the concrete segment body 1. Both the positioning groove 2 and the positioning strip 3 are convex.

[0036] Among them, the concrete pipe segment body 1 has a positioning groove 2 and a fixing groove 6 at one end. The positioning strip 3 has an installation groove 8 on its side. The fixing groove 8 has a fixing pipe 9 fixed inside. The fixing groove 6 has a fixing post 7 inserted inside. The fixing post 7 is threadedly connected to the fixing pipe 9.

[0037] When connecting two adjacent concrete segment bodies 1, the positioning strip 3 at one end of one concrete segment body 1 is inserted into the positioning groove 2 at the end of the adjacent concrete segment body 1, ensuring that the fixing groove 6 corresponds to the fixing pipe 9. Then, the fixing post 7 is inserted into the fixing groove 6, and the fixing post 7 is tightened to connect with the fixing pipe 9. This process is repeated to connect two adjacent concrete segment bodies until a tubular structure is formed. The positioning structure allows for the precise positioning and installation of two adjacent concrete segment bodies 1, improving installation accuracy, reducing deviations during splicing, and ultimately enhancing the performance of the concrete segment bodies.

[0038] Reference Figure 3 and Figure 4 The upper end of the concrete segment body 1 is provided with a splice groove 4, and the lower end of the concrete segment body 1 is fixed with a splice block 5 that is compatible with the splice groove 4.

[0039] Among them, the concrete pipe segment body 1 is threadedly connected to the side with a reinforcing bolt 10, the reinforcing bolt 10 extends into the insertion groove 4, and the insertion block 5 has a reinforcing hole on the side that matches the reinforcing bolt 10.

[0040] After connecting two adjacent concrete pipe segments 1 together, the insertion block 5 at the lower end of the upper concrete pipe segment 1 is inserted into the insertion groove 4 at the upper end of the lower concrete pipe segment 1. Then, the reinforcing bolt 10 is inserted into the insertion block 5 and screwed into the insertion block 5, thus completing the splicing between the upper and lower concrete pipe segments 1, thereby improving the connection effect between the two adjacent concrete pipe segments 1, and also playing a role in positioning the two adjacent concrete pipe segments 1.

[0041] A constraint groove 11 is provided on the side of the concrete segment body 1, and a constraint steel ring 12 is provided inside the constraint groove 11. A connecting strip 13 is fixed to one end of the constraint steel ring 12.

[0042] The other end of the constraint steel ring 12 is provided with a connecting hole, and a connecting post 14 is slidably inserted into the connecting strip 13. The connecting post 14 is threadedly connected inside the connecting hole.

[0043] After the concrete segment bodies 1 are assembled into a tubular shape, a restraining steel ring 12 is fitted onto the tubular shape formed by the concrete segments, so that the restraining steel ring 12 is located inside the restraining groove 11. Then, the connecting post 14 is inserted into the connecting strip 13 and screwed into the connecting hole at the other end of the restraining steel ring 12, thereby realizing the connection between the two ends of the connecting ring. The restraining ring can improve the connection effect between multiple concrete segment bodies 1, thereby improving the overall integrity of the tubular concrete segment body 1.

[0044] Reference Figure 1 A waterproof layer 15 is provided between two adjacent concrete segments, and the waterproof layer 15 is a waterproof coating.

[0045] Applying a waterproof coating between two adjacent concrete segments can reduce water seepage at the joints, thereby improving the overall waterproofing effect of the concrete segments and reducing water seepage.

[0046] Working principle: The inner layer 101, made of high-ductility concrete, improves the crack resistance of the concrete segment body 1, while the outer layer 103, made of high-strength concrete, provides excellent corrosion resistance. When splicing the concrete segment bodies 1, the positioning strip 3 at one end of one segment body 1 is inserted into the positioning groove 2 at the end of the adjacent segment body 1, aligning the fixing groove 6 with the fixing pipe 9. Then, the fixing post 7 is inserted into the fixing groove 6, and the fixing post 7 is screwed in to connect with the fixing pipe 9. This process is repeated for adjacent segments until a tubular structure is formed. After splicing the concrete segment bodies 1 into a tubular shape, a restraining steel ring 12 is fitted onto the tubular structure, positioned inside the restraining groove 11. Then, a connecting post 14 is inserted into the connecting strip 13 and screwed into the connecting hole at the other end of the restraining steel ring 12, thus connecting the two ends of the restraining steel ring 12.

Claims

1. A multi-layer composite anti-corrosion concrete segment, comprising a concrete segment body (1), characterized in that: The concrete segment body (1) includes an inner layer (101), an intermediate layer (102) is provided on the side of the inner layer (101), and an outer layer (103) is provided on the side of the intermediate layer (102). The inner layer (101) is a high-ductility concrete layer, the intermediate layer (102) is an ordinary concrete reinforcement layer, and the outer layer (103) is an ultra-high performance concrete layer. The concrete segment body (1) is provided with a positioning structure.

2. The multi-layer composite anti-corrosion concrete pipe segment according to claim 1, characterized in that: The positioning structure includes a positioning groove (2) opened at one end of the concrete segment body (1), and a positioning strip (3) adapted to the positioning groove (2) is fixed at the other end of the concrete segment body (1). Both the positioning groove (2) and the positioning strip (3) are convex.

3. The multi-layer composite anti-corrosion concrete pipe segment according to claim 2, characterized in that: The concrete pipe body (1) has a positioning groove (2) and a fixing groove (6) at one end. The positioning strip (3) has an installation groove (8) on its side. A fixing pipe (9) is fixed inside the installation groove (8). A fixing column (7) is inserted inside the fixing groove (6). The fixing column (7) is threadedly connected to the fixing pipe (9).

4. The multi-layer composite anti-corrosion concrete pipe segment according to claim 3, characterized in that: The upper end of the concrete segment body (1) is provided with a splice groove (4), and the lower end of the concrete segment body (1) is fixed with a splice block (5) that is compatible with the splice groove (4).

5. A multi-layer composite anti-corrosion concrete pipe segment according to claim 4, characterized in that: The concrete pipe body (1) is threaded with a reinforcing bolt (10) on the side. The reinforcing bolt (10) extends into the insertion groove (4). The insertion block (5) has a reinforcing hole on the side that matches the reinforcing bolt (10).

6. The multi-layer composite anti-corrosion concrete pipe segment according to claim 1, characterized in that: The concrete segment body (1) has a constraint groove (11) on its side, and a constraint steel ring (12) is provided inside the constraint groove (11). A connecting strip (13) is fixed to one end of the constraint steel ring (12).

7. A multi-layer composite anti-corrosion concrete pipe segment according to claim 6, characterized in that: The other end of the constraint steel ring (12) is provided with a connecting hole, and a connecting post (14) is slidably inserted into the connecting strip (13). The connecting post (14) is threadedly connected inside the connecting hole.

8. The multi-layer composite anti-corrosion concrete pipe segment according to claim 1, characterized in that: A waterproof layer (15) is provided between two adjacent concrete pipe segments (1), and the waterproof layer (15) is a waterproof coating.

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