A steel branch pipe for lining deep-buried tunnels

Abstract

This utility model discloses an inner steel branch pipe for a deeply buried tunnel, comprising: a main pipe body, branch pipe bodies, a branch waist beam, and a U-shaped beam. The branch waist beam is placed between the main pipe body and the branch pipe bodies, and is flush with the inner walls of both the main pipe body and the branch pipe bodies, and is welded on both sides, thus facilitating welding work when connecting the main pipe body and the branch pipe bodies. The U-shaped beam is welded to the outer wall of the main pipe body, and the two ends of the U-shaped beam are respectively connected to the corresponding ends of the branch waist beam, thereby tightening the branch waist beam to ensure the stability of the entire branch pipe, prevent deformation, and improve its overall compressive strength.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe structure manufacturing technology, specifically to a steel branch pipe lining for a deeply buried tunnel. Background Technology

[0002] In recent years, there has been an increasing number of major water conservancy projects focused on water conservation and supply. The steel pipes lining deeply buried tunnels are the fundamental carriers for transporting water resources. These projects require the steel pipes to meet stringent requirements, including corrosion resistance, high internal and external water pressure resistance, and the challenges of long-distance underground burial and maintenance. Particular attention is paid to the nodes between transport pipelines, which bear even greater external forces and related stresses, demanding higher quality. Therefore, under the multiple requirements of manufacturing quality, efficiency, and safety, it is necessary to design and develop a high-strength steel pipe lining for deeply buried tunnels. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a steel branch pipe for deep-buried tunnels, so as to ensure the stability of the entire branch pipe, prevent deformation, and improve its overall compressive strength.

[0004] The first technical solution of this utility model is as follows: A steel branch pipe lining for a deep-buried tunnel includes: a main pipe, branch pipes, branch waist beams, and U-shaped beams; the branch pipes are connected to one side of the main pipe, and two intersecting lines are formed between the main pipe and the branch pipes; two branch waist beams are arranged on the corresponding intersecting lines between the main pipe and the branch pipes, and the two sides of the branch waist beams are respectively connected to the main pipe and the branch pipe; the U-shaped beams are sleeved on the main pipe along the circumference of the main pipe, and the two ends of the U-shaped beams are respectively connected to the two ends of the corresponding branch waist beams.

[0005] Furthermore, the inner steel branch pipe also includes a connecting column; the connecting column is located at the intersection of the two intersecting lines, and the ends of the branch waist beam and the U-shaped beam are connected to the corresponding connecting column.

[0006] Furthermore, the diameter of the branch pipe gradually decreases from the side closest to the main pipe to the other side.

[0007] Furthermore, the inner steel branch pipe also includes stiffening rings, with multiple stiffening rings spaced apart along the axial direction of the main pipe and sleeved on the outside of the main pipe.

[0008] Furthermore, a grouting hole is provided on the outer side of the main body, and a reinforcing plate is provided on the outer side of the grouting hole. The reinforcing plate has a through hole coaxially arranged with the grouting hole.

[0009] Furthermore, the inner walls of the main pipe and the branch pipe are provided with an inner anti-corrosion layer.

[0010] Furthermore, the outer walls of the main pipe and the branch pipe are provided with an external anti-corrosion layer.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The forked waist beam is placed between the main body and the branch body, and the forked waist beam is flush with the inner wall of the main body and the branch body, and is welded on both sides, which facilitates the welding work when connecting the main body and the branch body. The U-shaped beam is welded to the outer wall of the main pipe, and the two ends of the U-shaped beam are respectively connected to the two ends of the corresponding side beam, so as to tighten the side beam, ensure the stability of the entire side pipe, prevent deformation, and improve its overall compressive strength. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a perspective view of the steel-lined branch pipe in this utility model; Figure 2 This is a side view of the steel-lined branch pipe in this utility model; Explanation of reference numerals in the attached drawings: 1-Main pipe; 101-Grouting hole; 2-Branch pipe; 3-Waist beam; 4-U-shaped beam; 5-Connecting column; 6-Reinforcing ring; 7-Strengthening plate. Detailed Implementation

[0014] To facilitate a better understanding of the purpose, structure, features, and effects of this utility model, it will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that the features shown in the figures are not necessarily drawn to scale. Furthermore, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0015] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," "right," "front," and "back" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0016] like Figure 1-2 As shown, this embodiment provides an inner lining steel branch pipe for a deep-buried tunnel, including: a main pipe body 1, a branch pipe body 2, a branch waist beam 3, and a U-shaped beam 4; the branch pipe body 2 is connected to one side of the main pipe body 1, and two intersecting lines are formed between the main pipe body 1 and the branch pipe body 2; the two branch waist beams 3 are arranged on the corresponding intersecting lines between the main pipe body 1 and the branch pipe body 2, and the two sides of the branch waist beams 3 are respectively connected to the main pipe body 1 and the branch pipe body 2; the U-shaped beam 4 is sleeved on the main pipe body 1 along the circumference of the main pipe body 1, and the two ends of the U-shaped beam 4 are respectively connected to the two ends of the corresponding branch waist beams 3.

[0017] The forked waist beam 3 is placed between the main body 1 and the branch body 2, and the forked waist beam 3 is flush with the inner wall of the main body 1 and the branch body 2 and is welded on both sides, which facilitates the welding work when the main body 1 and the branch body 2 are connected. The U-shaped beam 4 is welded to the outer wall of the main pipe 1, and the two ends of the U-shaped beam 4 are respectively connected to the two ends of the corresponding side beam 3, so as to tighten the side beam 3, so as to ensure the stability of the entire side pipe, prevent deformation, and improve its overall compressive strength.

[0018] As a preferred embodiment, the steel-lined branch pipe further includes a connecting post 5; the connecting post 5 is located at the intersection of the two intersecting lines, and the endpoints of the branch beam 3 and the U-shaped beam 4 are connected to the corresponding connecting post 5. Using the connecting post 5 as the connection point, the endpoints of the branch beam 3 and the U-shaped beam 4 are welded to the connecting post 5, improving the ease of welding.

[0019] As a preferred embodiment, the diameter of the branch pipe 2 gradually decreases from one side closest to the main pipe 1 to the other side. The branch pipe 2 can connect to other pipes or connect to manhole covers, etc.

[0020] As a preferred embodiment, the inner-lined steel branch pipe further includes stiffening rings 6, a plurality of which are spaced apart along the axial direction of the main pipe body 1 and fitted onto the outer side of the main pipe body 1. Specifically, the stiffening rings 6 are welded to the outer side of the main pipe body 1. The stiffening rings 6 enable the steel pipe to withstand the high internal and external water pressure requirements when deeply buried underground for water transmission.

[0021] As a preferred embodiment, a grouting hole 101 is provided on the outer side of the main pipe body 1, and a reinforcing plate 7 is provided on the outer side of the grouting hole 101. The reinforcing plate 7 has a through hole coaxially arranged with the grouting hole 101. Specifically, the reinforcing plate 7 is welded to the outer wall of the main pipe body 1, and the reinforcing plate 7 is used to enhance the mechanical properties of the steel pipe opening and prevent the steel pipe from cracking at the weak point of the grouting hole 101.

[0022] As a preferred embodiment, the inner walls of the main pipe 1 and the branch pipe 2 are provided with an inner anti-corrosion layer. Specifically, the inner anti-corrosion layer is an epoxy powder anti-corrosion coating, which improves the corrosion resistance of the pipe body.

[0023] As a preferred embodiment, the outer walls of the main pipe 1 and the branch pipe 2 are provided with an external anti-corrosion layer. The external anti-corrosion layer is a cement mortar coating.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steel branch pipe lining for a deeply buried tunnel, characterized in that, include: The system comprises a main pipe, branch pipes, a forked waist beam, and a U-shaped beam. The branch pipe is connected to one side of the main pipe, and two intersecting lines are formed between the main pipe and the branch pipe. Two forked waist beams are arranged on the corresponding intersecting lines between the main pipe and the branch pipe, and the two sides of the forked waist beams are respectively connected to the main pipe and the branch pipe. The U-shaped beam is sleeved on the main pipe along its circumference, and the two ends of the U-shaped beam are respectively connected to the two ends of the forked waist beams. It also includes connecting columns; the connecting columns are located at the intersection of the two intersecting lines, and the ends of the crossbeam and the U-shaped beam are connected to the corresponding connecting columns; The diameter of the branch pipe gradually decreases from the side closest to the main pipe to the other side; It also includes stiffening rings, a plurality of which are spaced apart along the axial direction of the main body and sleeved on the outside of the main body; The main body has a grouting hole on its outer side, and a reinforcing plate is provided on the outer side of the grouting hole. The reinforcing plate has a through hole that is coaxially arranged with the grouting hole.

2. The steel branch pipe lining for a deep-buried tunnel according to claim 1, characterized in that, The inner walls of the main pipe and the branch pipes are provided with an inner anti-corrosion layer.

3. The steel branch pipe lining for a deep-buried tunnel according to claim 1, characterized in that, The outer walls of the main pipe and the branch pipes are provided with an external anti-corrosion layer.

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