Connecting structure of steel pipe and reinforced concrete jacking pipe
Through the plug-in and coordination between the concrete connecting section and the reinforced concrete top pipe, the welding of the water stop ring assembly of the steel pipe section and the steel body reinforcement mesh, combined with the design of the gasket, steel ring and grouting components, the steel pipe and steel bars are solved. The problem of fewer concrete top pipe connection structures achieves high-strength and reliable connection effect.
Patent Information
- Application Number
- CN202421432187.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-21
AI Technical Summary
In the prior art, there are fewer connection structures between steel pipes and reinforced concrete top pipes at turns and accessories, making it difficult to achieve reliable connections between different pipes.
The concrete connection section is used to cooperate with the reinforced concrete top pipe, and the water stop ring assembly of the steel pipe section is welded with the steel mesh of the concrete connection section, and is equipped with a gasket, a steel ring and a grouting component, and the joint is sealed through the grouting component. The gap between the steel collar and the connection ensures the strength of the connection.
The conversion connection between the reinforced concrete top pipe and the steel pipe is realized, and the safety, reliability, durability and structural strength of the connection are improved.
Smart Images
Figure CN222479645U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water conservancy and hydropower engineering, in particular to a connection structure of a steel pipe and a reinforced concrete top pipe. Background Art
[0002] Drainage pipes are pierced through roads, railways and other intersecting buildings by jacking pipes. Reinforced concrete jacking pipes are mostly used as pipe materials. Reinforced concrete jacking pipes have the characteristics of good durability and low investment. The joints of reinforced concrete jacking pipes are mostly steel sockets and double socket joints for easy construction.
[0003] However, it is inevitable to encounter conversion connections between steel pipes and reinforced concrete jacking pipes at pipe bends and fittings. Currently, there are few related conversion connection structures, so how to achieve reliable connection between different pipes is an urgent problem to be solved. Utility Model Content
[0004] The technical problem to be solved by the utility model is: in view of the above existing problems, a connection structure between a steel pipe and a reinforced concrete jacking pipe is provided.
[0005] The technical solution adopted by the utility model is: a connection structure between a steel pipe and a reinforced concrete jacking pipe, characterized in that it comprises:
[0006] A concrete connecting section, wherein a pipe body steel mesh is provided inside, and the concrete connecting section is plug-fitted with the end of the reinforced concrete top pipe;
[0007] A steel pipe section, the outer wall of which is provided with a water stop ring assembly, wherein the water stop ring assembly is at least partially connected to the steel mesh of the pipe body;
[0008] A liner is provided at the connection between the concrete connection section and the reinforced concrete top pipe;
[0009] A steel sleeve ring is sleeved on the outer surface of the connection between the concrete connection section and the reinforced concrete top pipe, and the inner wall of the steel sleeve ring is at least partially connected to the liner;
[0010] The grouting component is used to grout and seal the gap between the inner wall of the steel sleeve ring and the connection.
[0011] Through the above-mentioned technical means, the connection is achieved by plugging the concrete connecting section with the reinforced concrete jacking pipe, and the steel pipe section is connected to the steel pipe, so that the reinforced concrete jacking pipe and the steel pipe are converted and connected. The steel sleeve ring is arranged on the outer surface of the connection between the two. A gap will be generated between the steel sleeve ring and the connection. The gap is sealed by a grouting assembly to ensure that the connection has sufficient strength.
[0012] In some embodiments, the reinforced concrete jacking pipe can be socket-and-spigot matched, one end of the reinforced concrete jacking pipe is a socket end, and the other end of the reinforced concrete jacking pipe is a spigot end;
[0013] The concrete connecting section includes a concrete socket section and a concrete socket section. The concrete socket section has the same size as the socket end of the reinforced concrete jacking pipe, and the concrete socket section can be matched with the socket end of the reinforced concrete jacking pipe. The concrete socket section has the same size as the socket end of the reinforced concrete jacking pipe, and the concrete socket section can be matched with the socket end of the reinforced concrete jacking pipe.
[0014] In some embodiments, the grouting assembly includes a grouting pipe, the grouting pipe is connected to the gap, and after the grouting of the grouting pipe is completed, the pipe opening of the grouting pipe is sealed with epoxy mortar;
[0015] If the socket end of the reinforced concrete top pipe is connected to the concrete socket section, the grouting pipe is arranged inside the concrete socket section;
[0016] If the socket end of the reinforced concrete jacking pipe is connected to the concrete socket section, the grouting pipe is arranged inside the socket end of the reinforced concrete jacking pipe.
[0017] In some embodiments, if the socket end of the reinforced concrete jacking pipe is connected to the concrete socket section, an anchoring steel bar connected to the inner wall of the steel sleeve ring is provided inside the socket end of the reinforced concrete jacking pipe;
[0018] If the socket end of the reinforced concrete jacking pipe is connected to the concrete socket section, the pipe body steel mesh inside the concrete socket section is connected to the inner wall of the steel sleeve ring.
[0019] In some embodiments, the water stop ring assembly includes a first water stop ring and a second water stop ring, the outer wall of the steel pipe section is provided with the first water stop ring and the second water stop ring, and the first water stop ring is connected to the steel mesh of the pipe body.
[0020] In some embodiments, a wedge-shaped rubber ring is provided in the gap, and the material of the wedge-shaped rubber ring is chloroprene rubber with a Shore hardness of 45-55.
[0021] In some embodiments, the inclined surface of the wedge-shaped rubber ring and the oblique mouth of the steel ring are both coated with silicone oil.
[0022] In some embodiments, both the inner and outer surfaces of the seam formed by the gasket are sealed with sealant.
[0023] In some embodiments, 4 to 6 gaskets are selected according to the pipe diameter, and the gasket is made of 30 mm thick multi-layer plywood.
[0024] In some embodiments, the outer wall of the steel pipe section is cast with concrete connected to the concrete connecting section, and the concrete is provided with reinforcing bars connected to the steel mesh of the pipe body.
[0025] The beneficial effects of the utility model are:
[0026] 1. The concrete connection section and the reinforced concrete jacking pipe are connected to each other through plug-in cooperation. The water stop ring assembly on the steel pipe section is welded to the pipe body steel mesh of the concrete connection section, which can ensure high structural strength. The steel pipe section is connected to the steel pipe, so that the reinforced concrete jacking pipe and the steel pipe can be converted and connected. The steel sleeve ring is set at the connection between the concrete connection section and the reinforced concrete jacking pipe, and the grouting assembly is used to grout and seal the gap between the inner wall of the steel sleeve ring and the connection, thereby improving the safety, reliability, durability and structural strength of the connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a structural schematic diagram of the reinforced concrete jacking pipe in this application.
[0028] Figure 2 It is a schematic diagram of the structure of the pipe body steel mesh in this application.
[0029] Figure 3 It is a structural schematic diagram of the connection between the socket end of the reinforced concrete jacking pipe and the steel pipe in the present application.
[0030] Figure 4 It is a structural schematic diagram of the connection between the spigot end of the reinforced concrete jacking pipe and the steel pipe in the present application.
[0031] Figure 5 It is a structural schematic diagram of the socket-and-spigot fit of the reinforced concrete jacking pipe in this application.
[0032] Description of reference numerals:
[0033] 1. Concrete connecting section; 2. Steel pipe section; 3. Liner; 4. Steel sleeve ring; 5. Pipe body steel mesh; 6. Anchor steel bars; 7. First water stop ring; 8. Second water stop ring; 9. Grouting pipe; 10. Wedge-shaped rubber ring; 11. Sealant; 12. Strengthening reinforcement; 13. Circumferential force reinforcement; 14. Embedded steel plate; 15. Pipe body distribution steel bars.
[0034] This specification includes references to "one embodiment" or "an embodiment." The appearance of the phrase "in one embodiment" or "in an embodiment" does not necessarily refer to the same embodiment. The particular features, structures or characteristics may be combined in any suitable manner consistent with the present disclosure.
[0035] The term "comprising" is open ended. As used in the appended claims, the term does not exclude additional structures or steps.
[0036] "First," "second," etc. As used herein, these terms act as labels for the nouns that precede them and do not imply any type of ordering (e.g., spatial, temporal, logical, etc.). DETAILED DESCRIPTION
[0037] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution of the present utility model is further described below in conjunction with specific embodiments.
[0038] Embodiment 1:
[0039] Combination Figures 1 to 3 As shown, this embodiment is a connection structure between a steel pipe and a reinforced concrete jacking pipe, comprising a concrete connection section 1, a steel pipe section 2, a liner 3, a steel collar 4 and a grouting assembly. The interior of the concrete connection section 1 is provided with a pipe body steel mesh 5, the concrete connection section 1 is plugged into the end of the reinforced concrete jacking pipe, the outer wall of the steel pipe section 2 is provided with a water stop ring assembly, the water stop ring assembly is at least partially connected to the pipe body steel mesh 5, a certain length is reserved at the end of the steel pipe section 2 to facilitate welding of the steel pipe, a liner 3 is provided at the connection between the concrete connection section 1 and the reinforced concrete jacking pipe, a steel collar 4 is provided on the outer surface of the connection between the concrete connection section 1 and the reinforced concrete jacking pipe, there is a certain gap between the steel collar 4 and the connection, the inner wall of the steel collar 4 is at least partially connected to the liner 3, and the grouting assembly is used to grout and seal the gap between the inner wall of the steel collar 4 and the outer wall of the connection.
[0040] In some embodiments, Figure 1 The specific structure of the reinforced concrete jacking pipe in this embodiment is shown. Figure 2 As shown, the pipe body steel mesh 5 includes annular stress-bearing bars 13, embedded steel plates 14, anchoring steel bars 6 and pipe body distribution steel bars 15. The annular stress-bearing bars 13 are arranged at axial intervals along the concrete connecting section 1, and the pipe body distribution steel bars 15 are arranged at annular intervals along the annular stress-bearing bars 13. The portion of the pipe body distribution steel bars 15 located at the end of the concrete connecting section 1 is connected to the embedded steel plate 14 through the anchoring steel bar 6. The embedded steel plate 14 is used to be connected to the inner wall of the steel sleeve ring 4.
[0041] In some embodiments, the reinforced concrete jacking pipes are connected by a socket-and-spigot fit, one end of the reinforced concrete jacking pipe is a socket end, and the other end of the reinforced concrete jacking pipe is a spigot end.
[0042] In some embodiments, such as Figure 3As shown, when the socket end of the reinforced concrete jacking pipe needs to be connected to a steel pipe, the concrete connecting section 1 in this embodiment is a concrete socket section, and the concrete socket section has the same size as the socket end of the reinforced concrete jacking pipe, and the concrete socket section can cooperate with the socket end of the reinforced concrete jacking pipe.
[0043] Furthermore, the water stop ring assembly includes a first water stop ring 7 and a second water stop ring 8. The outer wall of the steel pipe section 2 is provided with two water stop rings, the first water stop ring 7 and the second water stop ring 8. The first water stop ring 7 is welded to the annular force reinforcement 13 in the pipe body steel mesh 5 near the end of the first water stop ring 7. The outer wall of the steel pipe section 2 is cast with concrete connected to the concrete connection section 1. The concrete used has the same thickness and grade as the reinforced concrete top pipe. A layer of reinforcing bars 12 connected to the pipe body steel mesh 5 is arranged in the concrete.
[0044] Furthermore, an anchoring steel bar 6 is provided in the socket end of the reinforced concrete jacking pipe, and the anchoring steel bar 6 is connected to the inner wall of the steel sleeve ring 4. After the socket end of the concrete jacking pipe is engaged with the concrete socket section, a gap is generated between the steel sleeve ring 4 and the concrete socket section.
[0045] Furthermore, the grouting assembly includes a grouting pipe 9, which is arranged inside the concrete socket section. The grouting pipe 9 connects the gap between the steel ring 4 and the concrete socket section. Grouting is injected into the gap through the grouting pipe 9 to ensure that the seam surface is watertight. After the grouting of the grouting pipe 9 is completed, the pipe mouth of the grouting pipe 9 is sealed with epoxy mortar.
[0046] Furthermore, the inner and outer surfaces of the seam formed by the gasket 3 are sealed with a sealant 11, 4 to 6 gaskets 3 are selected according to the pipe diameter, and the gasket 3 is made of 30 mm thick multi-layer plywood.
[0047] Furthermore, a wedge-shaped rubber ring 10 is provided in the gap. The material of the wedge-shaped rubber ring 10 is chloroprene rubber with a Shore hardness of 45 to 55, which ensures that the interface is flat and smooth without any marks and without any cracks.
[0048] Furthermore, before the concrete connecting section 1 is connected to the reinforced concrete jacking pipe by socket connection, a layer of silicone oil is applied on the inclined surface of the wedge-shaped rubber ring 10 and the inclined mouth of the steel sleeve ring 4. It is strictly forbidden to use other lubricants such as grease or soapy water. After the socket connection is completed, a probe should be inserted into the gap of the steel sleeve ring 4 to check along the periphery whether the rubber ring is accurately positioned. If flipping and displacement are found, it should be pulled out and re-pasted and inserted.
[0049] Embodiment 2:
[0050] Combination Figure 4As shown, this embodiment is a connection structure between a steel pipe and a reinforced concrete jacking pipe. The difference between this embodiment and the first embodiment is that when the socket end of the reinforced concrete jacking pipe needs to be connected to a steel pipe, the concrete connection section 1 in this embodiment adopts a concrete socket section, and the concrete socket section has the same size as the socket end of the reinforced concrete jacking pipe, and the concrete socket section can cooperate with the socket end of the reinforced concrete jacking pipe.
[0051] Furthermore, the water stop ring assembly includes a first water stop ring 7 and a second water stop ring 8. The outer wall of the steel pipe section 2 is provided with two water stop rings, the first water stop ring 7 and the second water stop ring 8. The first water stop ring 7 is welded to the annular force reinforcement 13 in the pipe body steel mesh 5 near the end of the first water stop ring 7. The outer wall of the steel pipe section 2 is cast with concrete connected to the concrete connection section 1. The concrete used has the same thickness and grade as the reinforced concrete top pipe. A layer of reinforcing bars 12 connected to the pipe body steel mesh 5 is arranged in the concrete.
[0052] Furthermore, the pipe body distribution steel bars 15 in the pipe body steel mesh 5 are welded to the inner wall of the steel sleeve ring 4, and the welding between the steel sleeve ring 4, the pipe body steel mesh 5, and the reinforcing bars 12 adopts double-sided arc welding, and the welding length is not less than 5d. After the socket end of the concrete jacking pipe is connected and matched with the concrete socket section, a gap is generated between the steel sleeve ring 4 and the socket end of the concrete jacking pipe.
[0053] Furthermore, the grouting assembly includes a grouting pipe 9, which is arranged inside the socket end of the reinforced concrete jacking pipe. The grouting pipe 9 connects the gap between the steel sleeve ring 4 and the socket end of the concrete jacking pipe. Grouting is injected into the gap through the grouting pipe 9 to ensure that the seam surface is watertight. After grouting of the grouting pipe 9 is completed, the pipe mouth of the grouting pipe 9 is sealed with epoxy mortar.
[0054] Furthermore, the inner and outer surfaces of the seam formed by the gasket 3 are sealed with a sealant 11, 4 to 6 gaskets 3 are selected according to the pipe diameter, and the gasket 3 is made of 30 mm thick multi-layer plywood.
[0055] Furthermore, a wedge-shaped rubber ring 10 is provided in the gap. The material of the wedge-shaped rubber ring 10 is chloroprene rubber with a Shore hardness of 45 to 55, which ensures that the interface is flat and smooth without any marks and without any cracks.
[0056] Furthermore, before the concrete connecting section 1 is connected to the reinforced concrete jacking pipe by socket connection, a layer of silicone oil is applied on the inclined surface of the wedge-shaped rubber ring 10 and the inclined mouth of the steel sleeve ring 4. It is strictly forbidden to use other lubricants such as grease or soapy water. After the socket connection is completed, a probe should be inserted into the gap of the steel sleeve ring 4 to check along the periphery whether the rubber ring is accurately positioned. If flipping and displacement are found, it should be pulled out and re-pasted and inserted.
[0057] Embodiment three:
[0058] like Figure 5 As shown, this embodiment is a connection structure of a reinforced concrete jacking pipe, wherein the reinforced concrete jacking pipes are connected by a socket-and-spigot fit, one end of the reinforced concrete jacking pipe is a socket end, and the other end of the reinforced concrete jacking pipe is a spigot end.
[0059] Specifically, the socket end of the reinforced concrete jacking pipe is connected with a steel sleeve ring 4 through an anchoring steel bar 6, a gasket 3 is installed at the socket between the socket end and the spigot end of the reinforced concrete jacking pipe, and the inner and outer surfaces of the seam surface are sealed with a sealant 11. When the socket end and the spigot end of the reinforced concrete jacking pipe are in socket-spigot fit, there is a gap between the inner wall of the steel sleeve ring 4 and the outer wall of the spigot end of the reinforced concrete jacking pipe, and a grouting pipe 9 is installed in the spigot end of the reinforced concrete jacking pipe through a steel ring, and the grouting pipe 9 is connected to the gap, and the grouting pipe 9 is used to grout the gap to ensure that the seam surface does not leak, and the grouting pipe 9 is sealed with epoxy mortar after the grouting is completed. A wedge-shaped rubber ring 10 is provided in the gap, and the material of the wedge-shaped rubber ring 10 is chloroprene rubber with a Shore hardness of 45 to 55.
[0060] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A connection structure between a steel pipe and a reinforced concrete jacking pipe, characterized in that: include: A concrete connecting section (1) is provided with a pipe body steel mesh (5) inside, and the concrete connecting section (1) is plug-fitted with the end of the reinforced concrete top pipe; A steel pipe section (2), the outer wall of which is provided with a water stop ring assembly, wherein the water stop ring assembly is at least partially connected to the pipe body steel mesh (5); A liner (3) is provided at the connection between the concrete connection section (1) and the reinforced concrete jacking pipe; A steel sleeve (4) is sleeved on the outer surface of the connection between the concrete connection section (1) and the reinforced concrete jacking pipe, and the inner wall of the steel sleeve (4) is at least partially connected to the liner (3); A grouting component is used to perform grouting and sealing on the gap between the inner wall of the steel sleeve ring (4) and the connection point.
2. The connection structure of a steel pipe and a reinforced concrete jacking pipe according to claim 1, characterized in that: The reinforced concrete jacking pipe can be socket-and-spigot matched, one end of the reinforced concrete jacking pipe is a socket end, and the other end of the reinforced concrete jacking pipe is a spigot end; The concrete connecting section (1) comprises a concrete socket section and a concrete socket section, the concrete socket section has the same size as the socket end of the reinforced concrete jacking pipe, and the concrete socket section can be matched with the socket end of the reinforced concrete jacking pipe, the concrete socket section has the same size as the socket end of the reinforced concrete jacking pipe, and the concrete socket section can be matched with the socket end of the reinforced concrete jacking pipe.
3. The connection structure of a steel pipe and a reinforced concrete jacking pipe according to claim 2, characterized in that: The grouting assembly comprises a grouting pipe (9), the grouting pipe (9) is connected to the gap, and after the grouting of the grouting pipe (9) is completed, the pipe opening of the grouting pipe (9) is sealed with epoxy mortar; If the socket end of the reinforced concrete top pipe is connected to the concrete socket section, the grouting pipe (9) is arranged inside the concrete socket section; If the socket end of the reinforced concrete jacking pipe is connected to the concrete socket section, the grouting pipe (9) is arranged inside the socket end of the reinforced concrete jacking pipe.
4. The connection structure of a steel pipe and a reinforced concrete jacking pipe according to claim 2, characterized in that: If the socket end of the reinforced concrete jacking pipe is connected to the concrete socket section, an anchoring steel bar (6) connected to the inner wall of the steel sleeve ring (4) is provided inside the socket end of the reinforced concrete jacking pipe; If the socket end of the reinforced concrete jacking pipe is connected to the concrete socket section, the pipe body steel mesh (5) inside the concrete socket section is connected to the inner wall of the steel sleeve ring (4).
5. The connection structure of a steel pipe and a reinforced concrete jacking pipe according to claim 1, characterized in that: The water stop ring assembly comprises a first water stop ring (7) and a second water stop ring (8); the outer wall of the steel pipe section (2) is provided with the first water stop ring (7) and the second water stop ring (8); the first water stop ring (7) is connected to the pipe body steel mesh (5).
6. The connection structure of a steel pipe and a reinforced concrete jacking pipe according to claim 1, characterized in that: A wedge-shaped rubber ring (10) is arranged in the gap, and the material of the wedge-shaped rubber ring (10) is chloroprene rubber with a Shore hardness of 45-55.
7. The connection structure of a steel pipe and a reinforced concrete jacking pipe according to claim 6, characterized in that: The inclined surface of the wedge-shaped rubber ring (10) and the oblique opening of the steel sleeve ring (4) are both coated with silicone oil.
8. The connection structure of a steel pipe and a reinforced concrete jacking pipe according to claim 1, characterized in that: Sealant (11) is used to seal the inner and outer surfaces of the seam formed by the gasket (3).
9. The connection structure of a steel pipe and a reinforced concrete jacking pipe according to claim 1, characterized in that: The number of the gaskets (3) is 4 to 6 according to the pipe diameter, and the gaskets (3) are made of 30 mm thick multi-layer plywood.
10. The connection structure of a steel pipe and a reinforced concrete jacking pipe according to claim 1, characterized in that: The outer wall of the steel pipe section (2) is cast with concrete connected to the concrete connection section (1), and the concrete is provided with reinforcing bars (12) connected to the pipe body steel mesh (5).