Novel large-diameter reinforced concrete pipeline connecting structure

Abstract

The utility model discloses a novel large-caliber reinforced concrete pipeline connecting structure which comprises a dowel bar and a dowel bar hole channel, the dowel bar hole channel is arranged at the socket end of a reinforced concrete pipeline and adopts a cylindrical hole, the dowel bar is a reinforcing steel bar component, one end of the dowel bar is connected with concrete at the socket end of the reinforced concrete pipeline, and the other end of the dowel bar is connected with concrete at the socket end of the reinforced concrete pipeline. The other end is inserted into a dowel bar hole channel at the socket end of the reinforced concrete pipeline, and the dowel bar hole channel is filled with grout; double-layer water-stop rubber rings are arranged at the joint of the reinforced concrete pipeline spigot end and the reinforced concrete pipeline socket end, and waterproof materials are filled between the double-layer water-stop rubber rings. The dowel bar device is additionally arranged to enhance the integrity and stratum displacement resistance of the reinforced concrete pipeline, the double-layer rubber rings are arranged, waterproof flexible materials are injected into gaps, the engineering problems that joints of the reinforced concrete pipeline are prone to permeating and disjointing are solved, and the applicability of reinforced concrete in complex and changeable stratums is improved.

Description

Technical Field

[0001] The utility model relates to a new connection structure for large-diameter reinforced concrete pipes, belonging to the technical field of reinforced concrete pipes for municipal engineering. Background Technique

[0002] Due to advantages such as low cost and convenient construction, reinforced concrete pipes are widely used in municipal engineering. Currently, common reinforced concrete pipes can be divided into: plain-end pipes, socket pipes, tongue-and-groove pipes, double-socket pipes, and steel socket pipes according to the interface form. These pipes have certain deficiencies. In soil layers with poor quality, under long-term ground loads, groundwater, and geological effects, leakage and disconnection often occur at the pipe joints, which can cause major municipal disasters such as road collapse and ground subsidence. In the design of municipal pipe networks, reinforced concrete pipes in poor geological soil layers are often replaced with pipes with better materials and interfaces such as ductile iron pipes. These measures often result in a large increase in project costs, which is contrary to the development concept of a conservation-oriented and economical society. Content of the Utility Model

[0003] Aiming at the poor applicability of the existing reinforced concrete pipe structure to complex geology and the easy occurrence of phenomena such as pipe interface leakage and disconnection, the utility model provides a new connection structure for large-diameter reinforced concrete pipes to improve the anti-seepage performance of the pipe interface and the self-stability of the pipe.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A new connection structure for large-diameter reinforced concrete pipes includes a force-transferring rod, a force-transferring rod hole, a double-layer rubber ring, and a waterproof material;

[0006] The force-transferring rod hole is arranged at the socket end of the reinforced concrete pipe and is a cylindrical hole. The force-transferring rod is a steel bar component. One end of the force-transferring rod is connected to the concrete at the spigot end of the reinforced concrete pipe, and the other end is inserted into the force-transferring rod hole at the socket end of the reinforced concrete pipe. The force-transferring rod hole is filled with grout;

[0007] A double-layer water-stop rubber ring is arranged at the gap between the spigot end and the socket end of the reinforced concrete pipe, and a waterproof material is filled between the double-layer water-stop rubber rings.

[0008] The further technology of the utility model:

[0009] Preferably, the part of the force-transferring rod in contact with the concrete at the spigot end of the reinforced concrete pipe is in the form of a ribbed steel bar structure, and the part of the force-transferring rod in contact with the force-transferring rod hole at the socket end of the reinforced concrete pipe is in the form of a plain round steel bar structure.

[0010] Preferably, a gap of 3-5 cm is left between the bottom of the force-transferring rod hole and the end of the force-transferring rod.

[0011] Preferably, a plurality of groups of the load transfer bars and the load transfer bar holes are provided in a matching manner.

[0012] Preferably, a steel sleeve is arranged in the load transfer bar hole.

[0013] Preferably, ring beam steel bars are arranged at the openings of the socket end and the spigot end of the reinforced concrete pipe.

[0014] Preferably, the ring beam steel bars are composed of circumferential stress bars and stirrups which are welded together.

[0015] Advantages of the present utility model:

[0016] Firstly, a load transfer bar device is added on the basis of the traditional connection interface of the reinforced concrete pipe to enhance the integrity and the resistance to ground layer displacement of the reinforced concrete pipe. Secondly, in order to enhance the impermeability of the interface of the reinforced concrete pipe, a double-layer rubber ring is provided, and a waterproof flexible material is injected between the gaps, solving the engineering pain points of easy penetration and disconnection at the interface of the reinforced concrete pipe, improving the applicability of the reinforced concrete pipe in complex and changeable ground layers, and having great popularization value. Description of the Drawings

[0017] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0018] Figure 1 It is a connection structure diagram of a new type of large-diameter reinforced concrete pipe.

[0019] Figure 2 It is an enlarged view of the top structure of the pipe.

[0020] In the drawings: 10 - load transfer bar, 11 - load transfer bar hole, 12 - ring beam steel bar at the opening, 13 - double-layer rubber ring, 14 - waterproof material, 15 - socket end of the reinforced concrete pipe, 16 - spigot end of the reinforced concrete pipe, 17 - steel sleeve, 18 - grouting hole, 19 - slurry outlet hole. Detailed Embodiments

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0022] Such as Figure 1-2As shown in the figure, a new large-diameter reinforced concrete pipe connection structure of the utility model includes a force transfer rod 10, a force transfer rod hole 11, a ring beam steel bar 12 at the hole, a double-layer rubber ring 13, and a waterproof material 14;

[0023] The gap between the bottom of the force transfer rod hole 11 and the end of the force transfer rod 10 is 3 - 5 cm.

[0024] The force transfer rod 10 is a steel bar component, one end of which contacts the concrete of the socket end 15 of the reinforced concrete pipe, and the other end contacts the force transfer rod hole 11 of the bell end 16 of the reinforced concrete pipe.

[0025] The ring beam steel bars 12 at the hole are arranged in two groups for strengthening and reinforcing the pipe port, and are composed of circumferential stress bars and stirrups.

[0026] The force transfer rod hole 11 of the bell end 16 of the reinforced concrete pipe is a cylindrical hole for receiving the force transfer rod 10 of the socket end 15 of the reinforced concrete pipe.

[0027] A double-layer rubber ring 13 is arranged at the gap of the reinforced concrete pipe for water stop at the pipe joint.

[0028] The filling waterproof flexible material at the pipe joint of the reinforced concrete pipe is used to enhance the water stop at the pipe joint.

[0029] The part of the force transfer rod 10 in contact with the concrete of the socket end 15 of the reinforced concrete pipe is in the form of a ribbed steel bar structure, which can be spiral ribbed steel bar, herringbone ribbed steel bar, or crescent ribbed steel bar. The part of the force transfer rod 10 in contact with the force transfer rod hole 11 of the bell end 16 of the reinforced concrete pipe is in the form of a plain round steel bar structure.

[0030] A steel sleeve 17 is arranged in the force transfer rod hole 11 of the bell end 16 of the reinforced concrete pipe to avoid direct contact between the force transfer rod 10 and the concrete of the force transfer rod hole 11, prevent the concrete in the hole from being damaged due to excessive local stress, and thus enhance the strength of the force transfer rod hole 11.

[0031] The force transfer rod 10 and the force transfer rod hole 11 can be arranged in four groups for cross bracing.

[0032] Two holes are arranged at the upper and lower parts of the pipe joint. The holes are located at the edge of the bell. The hole diameter is determined according to the grouting material. The grouting hole 18 is arranged at the bottom hole of the pipe, and the slurry outlet hole 19 is arranged at the top hole of the pipe.

[0033] The construction method includes the following steps:

[0034] First, construct the reinforced concrete pipe section, including the socket end 15 and the spigot end 16 of the reinforced concrete pipe. At the port of the concrete pipe section, set the ring beam steel bars 12 at the opening, and set the dowel bars 10 and the dowel bar holes 11. A steel sleeve 17 is arranged in the dowel bar hole 11. At the same time, a grouting hole 18 is reserved at the bottom of the spigot end 16 of the reinforced concrete pipe, and a bleeding hole 19 is reserved at the top.

[0035] After arranging the steel bars and embedded parts in the reinforced concrete and formwork is supported and C50 concrete is poured, a finished reinforced concrete pipe is formed, and a double-layer rubber ring 13 is set.

[0036] Transport the finished reinforced concrete pipe to the pipeline construction site. When constructing the pipeline, align the dowel bar 10 at the socket end 15 of the reinforced concrete pipe with the dowel bar hole 11 at the spigot end 16 of the reinforced concrete pipe for tight connection.

[0037] After checking the tightness of the pipeline connection, carry out the construction of the filling material at the pipe joint. Inject the waterproof flexible material into the pipe from the grouting and pressure testing hole at the bottom of the pipeline, and check the filling degree of the flexible material at the bleeding and pressure testing hole at the top of the pipeline until the pipe joint is filled.

[0038] The above content is only an example and description of the structure of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods to replace them. As long as it does not deviate from the structure of the invention or exceed the scope defined by this claim book, it shall fall within the protection scope of the present invention.

Claims

1. A new type of large-diameter reinforced concrete pipe connection structure, characterized by: Including force transmission rod, force transmission rod hole, double-layer rubber ring, waterproof material; The dowel rod hole is arranged at the socket end of the reinforced concrete pipe and adopts a cylindrical hole. The dowel rod is a reinforced steel member. One end of the dowel rod is connected to the concrete at the socket end of the reinforced concrete pipe, and the other end is inserted into the dowel rod hole at the socket end of the reinforced concrete pipe. The dowel rod hole is filled with grout. A double-layer water-stop rubber ring is arranged at the gap between the spigot end of the reinforced concrete pipe and the socket end of the reinforced concrete pipe, and waterproof material is filled between the double-layer water-stop rubber rings.

2. According to the novel large-diameter reinforced concrete pipe connection structure described in claim 1, it is characterized by: The part where the dowel rod contacts the concrete at the socket end of the reinforced concrete pipe is a ribbed steel bar structure, and the part where the dowel rod contacts the dowel rod channel at the socket end of the reinforced concrete pipe is a plain round steel bar structure.

3. According to the novel large-diameter reinforced concrete pipe connection structure described in claim 1, it is characterized by: A gap of 3 to 5 cm is left between the bottom of the force transmission rod hole and the end of the force transmission rod.

4. According to the novel large-diameter reinforced concrete pipe connection structure described in claim 1, it is characterized by: The force transmission rods and force transmission rod holes are matched and arranged in multiple groups.

5. According to the novel large-diameter reinforced concrete pipe connection structure described in claim 1, it is characterized by: A steel sleeve is arranged in the hole of the force transmission rod.

6. According to the novel large-diameter reinforced concrete pipe connection structure described in claim 1, it is characterized by: Ring beam steel bars are set at the openings of the spigot end and the socket end of the reinforced concrete pipe.

7. A new type of large-diameter reinforced concrete pipe connection structure according to claim 6, characterized in that: The ring beam reinforcement is formed by welding annular force-bearing reinforcement and stirrups.

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