Pipe piece for tunnel mechanical and electrical installation

Abstract

The utility model relates to a duct piece for tunnel mechanical and electrical installation. The duct piece comprises a concrete body and a reinforcement cage body pre-buried in the concrete body. The concave cambered surface of the concrete body is locally concave to form an open caisson groove; the pipe piece further comprises a reinforcing mechanism surrounding the inner wall of the open caisson groove, and at least part of the reinforcing mechanism penetrates into the concrete body to be connected. The pipe piece is of a steel reinforcement cage body and concrete body structure, the corrosion resistance is high, the reinforcing mechanism is arranged in the concave open caisson groove area, the reinforcing mechanism can reinforce the open caisson groove and the peripheral area, and therefore the local strength weakening influence caused by the open caisson groove arrangement is eliminated. The reinforcing mechanism and the concrete body are connected into a whole, so that the bonding strength of the reinforcing mechanism and the concrete body is improved, and the overall structural strength of the duct piece is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel technical field relates to a kind of segment for tunnel electromechanical installation. BACKGROUND

[0002] Water collecting pit needs to be set in tunnel, and water collecting pit can meet the needs of water accumulation and discharge in tunnel and the accommodation of fire water. The public file with announcement number CN216446930U provides a kind of tunnel segment for contact passage pump house subsurface excavation. Water collecting pit is set below contact passage, and forms pit structure, which not only has great construction difficulty, but also the pipeline required for main tunnel water discharge is complex.

[0003] In another existing construction method, the pump house is set in the main tunnel segment. Since the pump house needs to collect water locally, the tunnel segment in the corresponding pump house area adopts a concave all-steel segment structure to ensure the strength of the segment structure due to the insufficient strength of the concrete segment structure with a steel reinforcement cage after trenching.

[0004] Since the steel segment is applied to the pump house area, and the pump house area needs to accommodate accumulated water, the steel segment may corrode after long-term use. Moreover, the tunnel segment is a component that is difficult to replace, and the corrosion of the steel segment may easily lead to safety problems in the main tunnel, so improvement is needed. SUMMARY

[0005] To overcome the problems in the related art, the utility model embodiment provides a segment for tunnel electromechanical installation to solve the technical problem that the steel segment is applied to electromechanical installation and is prone to corrosion, especially in the pump house area.

[0006] According to a first aspect of the utility model embodiment, a segment for tunnel electromechanical installation is provided, which includes a concrete body and a steel reinforcement cage main body embedded in the concrete body. The inner concave surface of the concrete body is partially recessed to form a caisson slot.

[0007] The segment further includes a reinforcing mechanism surrounding the inner wall of the caisson slot, and at least part of the reinforcing mechanism penetrates into the concrete body for connection.

[0008] In an embodiment, the reinforcing mechanism includes a reinforcing frame covering the inner wall of the caisson slot, and the reinforcing frame is made of rigid material.

[0009] In an embodiment, the outer surface of the reinforcing frame is partially raised to form a plurality of rib-shaped protrusions, and the rib-shaped protrusions extend into the concrete body.

[0010] In an embodiment, the rib-shaped protrusions include pegs fixed to the reinforcing frame; or,

[0011] The rib-shaped protrusion comprises a rib-shaped protrusion formed on the reinforcing frame.

[0012] In an embodiment, the rib-shaped protrusion and the reinforcing cage body are connected as a whole.

[0013] In an embodiment, the reinforcing frame bottom is provided with at least one functional hole.

[0014] In an embodiment, a mounting seat assembly detachably connected to the reinforcing frame is further included, and the mounting seat assembly is provided with a weight lifting arm.

[0015] In an embodiment, the inner side wall surface of the reinforcing frame is provided with a protective layer.

[0016] In an embodiment, the reinforcing mechanism comprises a reinforcing cage surrounding the inner side wall of the caisson groove, and the reinforcing cage and the reinforcing cage body are connected as a whole.

[0017] In an embodiment, the caisson groove is a centrally recessed groove; or the caisson groove is a long groove transversely crossing the opposite side walls of the segment.

[0018] The technical scheme provided by the embodiment of the utility model can have the following beneficial effects: the segment adopts a reinforcing cage body and a concrete body structure, has strong corrosion resistance, and the reinforcing mechanism arranged in the recessed caisson groove region can reinforce the caisson groove and the surrounding region, thereby eliminating the local strength weakening effect caused by the caisson groove. The reinforcing mechanism and the concrete body are connected as a whole to improve the bonding strength of the reinforcing mechanism and the concrete body and improve the overall structural strength of the segment. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings incorporated into the specification and forming a part of the specification, show embodiments consistent with the utility model, and together with the specification, serve to explain the principle of the utility model.

[0020] Figure 1 is a schematic diagram of a segment with a groove-shaped caisson groove according to an embodiment.

[0021] Figure 2 is a schematic diagram of a cross-sectional structure of a segment according to an embodiment.

[0022] Figure 3 is a schematic diagram of a structure of a through-type caisson groove according to an embodiment.

[0023] Figure 4 is a schematic diagram of a structure of another through-type caisson groove according to an embodiment.

[0024] Figure 5 is a schematic diagram of a cross-sectional structure of a segment provided with a mounting seat assembly according to an embodiment.

[0025] Figure 6 is according to an embodiment showing a cross-sectional view of a caisson slot provided with a protective layer.

[0026] In the figure, concrete body 10; caisson slot 11; reinforcement cage main body 20; reinforcing mechanism 30; rib-like protrusion 31; functional hole 32; reinforcing frame 33; protective layer 34; mounting seat assembly 40; weight lifting arm 41. DETAILED DESCRIPTION

[0027] In the drawings of the embodiments of the present application, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it is understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present application, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0028] As Figures 1 to 4 shown, the present application provides a segment for tunnel electromechanical installation, the segment includes a concrete body 10 and a reinforcement cage main body 20 embedded in the concrete body 10, the reinforcement cage main body 20 is built-in in the concrete body 10 to form an integral structure. The segment is an arc structure, and the inner concave arc surface of the concrete body 10 is partially recessed to form a caisson slot 11.

[0029] Optionally, the caisson slot 11 is a centrally recessed groove to form a partially recessed structure.

[0030] Optionally, the caisson slot 11 is a long slot transversing the opposite two side walls of the segment to form a through groove structure.

[0031] Optionally, the length direction of the caisson slot 11 is parallel to the arc center line of the segment. Alternatively, the caisson slot 11 is recessed along the inner arc surface of the segment, and the caisson slot 11 is perpendicular to the arc center line of the segment.

[0032] Among them, the reinforcement cage main body 20 forms an inner concave structure in the caisson slot 11 area. The segment adopts the structure of the reinforcement cage main body 20 and the concrete body 10, and has strong corrosion resistance. Among them, the concrete body 10 covers the outer layer and most of the inner layer of the segment.

[0033] The pipe segment further comprises a reinforcing mechanism 30 surrounding the inner wall of the caisson slot 11, at least part of the reinforcing mechanism 30 penetrating into the concrete body 10 for connection. The reinforcing mechanism 30 reinforces the local strength of the area where the caisson slot 11 is located, so as to avoid local weakening of the pipe segment in the caisson slot 11. The reinforcing mechanism 30 is arranged in the inner recessed caisson slot 11 area, which can reinforce the caisson slot 11 and the surrounding area, thereby eliminating the local strength weakening effect caused by the arrangement of the caisson slot 11.

[0034] Part of the reinforcing mechanism 30 penetrates into the concrete body 10, and the concrete body 10 wraps part of the reinforcing mechanism 30 for connection, forming an integrated structure, improving the bonding strength of the reinforcing mechanism 30 and the concrete body 10, and improving the overall structural strength of the pipe segment.

[0035] The reinforcing mechanism 30 is a rigid structure to improve the structural rigidity of the pipe segment.

[0036] In an embodiment, the reinforcing mechanism 30 comprises a reinforcing frame 33 covering the inner wall of the caisson slot 11, and the reinforcing frame 33 is made of rigid material. The reinforcing frame 33 is a rigid frame structure to form a groove-shaped structure. Preferably, the reinforcing frame 33 is a frame structure with an open top. For example, when the reinforcing frame 33 is a counterbore-shaped frame structure, the peripheral wall frame edge and the bottom frame edge form a container space. Alternatively, when the reinforcing frame 33 is a long slot-shaped frame structure, the two ends of the reinforcing frame 33 penetrate through the opposite two side edges of the pipe segment.

[0037] Preferably, the reinforcing frame 33 is a frame structure formed by welding steel material, and the concrete body 10 is wrapped on the outer side of the reinforcing frame 33, so as to avoid corrosion of the outer side of the reinforcing frame 33.

[0038] Further, part of the reinforcing frame 33 penetrates into the concrete body 10 to improve the bonding strength of the reinforcing frame 33 and the concrete body 10. For example, the outer peripheral wall of the reinforcing frame 33 is provided with reinforcing ribs, reinforcing ribs and other local protruding structures to improve the bonding tightness of the reinforcing frame 33 and the concrete body 10. Preferably, the steel plates on both sides of the reinforcing frame 33 exceed the end plates at both ends to form a structure similar to a II-shaped structure.

[0039] As shown in FIG. 1, Figures 2 to 5 In an embodiment, the outer side surface of the reinforcing frame 33 is locally protruding to form a plurality of rib-shaped protrusions 31 extending into the concrete body 10. The rib-shaped protrusions 31 protrude from the outer side surface of the reinforcing frame 33, and the concrete body 10 wraps the rib-shaped protrusions 31 to improve the pull-out resistance.

[0040] Alternatively, the rib-shaped protrusions 31 comprise pegs fixed to the reinforcing frame 33, and the pegs are threadedly connected to the outer peripheral wall of the reinforcing frame 33; or the pegs are welded to the outer peripheral wall of the reinforcing frame 33. The end of the peg is protruding to further improve the pull-out resistance.

[0041] Optionally, the rib-like protrusion 31 comprises a rib-like protrusion 31 formed on the reinforcing frame 33. The surface of the reinforcing frame 33 is welded with a plurality of steel bars; or the reinforcing frame 33 is planted with steel bars; or the reinforcing frame 33 is an integral frame made of polymer material, and the rib-like protrusion 31 is integrally formed on the surface of the reinforcing rib.

[0042] As preferred, the rib-like protrusion 31 is locally bent or locally increased in axial diameter, and the concrete body 10 is wrapped outside the rib-like protrusion 31 during the forming process of the concrete body 10. The deformation part of the rib-like protrusion 31 increases the tensile strength, and greatly improves the tightness of the reinforcing frame 33 and the concrete body 10.

[0043] Further, the rib-like protrusion 31 is connected to the steel bar cage body 20 as a whole. The rib-like protrusion 31 is fixedly connected to the steel bar cage body 20 to form an integral structure. Preferably, the rib-like protrusion 31 is wound and connected to the steel bar cage at the end. Preferably, the rib-like protrusion 31 is welded to the steel bar cage body 20.

[0044] Further preferably, the steel bar cage body 20 and the reinforcing frame 33 are surface-welded to constitute an integral structure, further improving the structural strength of the segment.

[0045] The segment needs to be adjusted in angle and position during assembly, and accordingly, the bottom of the reinforcing frame 33 is provided with at least one functional hole 32. The functional hole 32 is provided on the reinforcing frame 33 and can completely support the entire segment. At the same time, the functional hole 32 can be used as a connecting part of the water pump mechanism in the pump house, thereby constituting a universal connecting part. Preferably, the functional hole 32 is configured as a threaded hole.

[0046] Further preferably, the back of the reinforcing frame 33 is welded with a stud, and the functional hole 32 extends to the stud to improve the connection strength.

[0047] As shown in Figures 3 to 5 In a preferred embodiment, the segment further comprises a mounting seat assembly 40 detachably connected to the reinforcing frame 33, and the mounting seat assembly 40 is provided with a weight lifting arm 41. The mounting seat assembly 40 is a frame structure, and at least part of the mounting seat assembly 40 extends into the caisson slot 11, which can not only reduce the overall operation height, but also utilize the functional hole 32 at the bottom of the reinforcing frame 33.

[0048] The weight lifting arm 41 can be used in cooperation with a pipe splicing machine to improve the convenience of segment assembly operation.

[0049] As shown in Figure 6 In an embodiment, a protective layer 34 is provided on the inner side wall surface of the reinforcing frame 33. The protective layer 34 covers the inner side surface of the reinforcing frame 33, which can separate the accumulated water from the steel material of the reinforcing frame 33, avoid direct contact, and improve the corrosion resistance of the segment.

[0050] Preferably, the protective layer 34 is configured as a stainless steel shell which is attached to the sidewall of the caisson 11 for protection.

[0051] Preferably, the protective layer 34 is configured as a rust-proof coating which can be a protective paint coating, a plastic coating, an electroplating coating, etc.

[0052] In one embodiment, the reinforcing mechanism 30 comprises a reinforcing cage which surrounds the inner sidewall of the caisson 11 and is connected to the reinforcing cage body 20 as a whole. The reinforcing cage is made of steel bars or high-strength polymer materials and is located inside the concrete body 10 and connected to the reinforcing cage body 20 to form an integrated reinforcing structure. The reinforcing cage can reinforce the structural strength of the peripheral area of the caisson 11 and, being located inside the concrete body 10, can improve the corrosion resistance.

[0053] When the pipe segment with the caisson 11 is applied to tunnel construction, a plurality of caissons 11 can be connected to form a length collection area or a plurality of caissons 11 can be distributed laterally in the tunnel to form a spatial passage for wiring.

[0054] It is to be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the present application. It is intended that the scope of the application should only be limited by the appended claims. Any altering, using or adapting of the present application which follows the general principles of the present application and includes common knowledge or conventional technical means in the technical field which is not disclosed in the present application shall be covered by the present application.

Claims

1. A segment for a tunnel electro-mechanical installation, the segment comprising a concrete body and a reinforcement cage body pre-buried within the concrete body, characterised in that: The inner concave arc surface of the concrete body is locally recessed to form a caisson groove. The segment further comprises a reinforcing mechanism surrounding the inner wall of the caisson groove, and at least part of the reinforcing mechanism penetrates into the concrete body.

2. The pipe section of claim 1, wherein The reinforcing mechanism comprises a reinforcing frame covering the inner wall of the caisson groove, and the reinforcing frame is made of rigid material.

3. The pipe section of claim 2, wherein, The outer surface of the reinforcing frame is locally protruded to form a plurality of rib-like protrusions, and the rib-like protrusions extend into the concrete body.

4. The pipe section of claim 3, wherein, The rib-like protrusions comprise pegs fixed to the reinforcing frame; or The rib-like protrusions comprise rib-like protrusions formed on the reinforcing frame.

5. The pipe section of claim 3 wherein, The rib-like protrusions and the reinforcing cage are integrally connected.

6. The pipe section of claim 2 wherein, The bottom of the reinforcing frame is provided with at least one functional hole.

7. The pipe section of claim 6, wherein, The installation seat assembly is detachably connected to the reinforcing frame, and the installation seat assembly is provided with a weight lifting arm.

8. The pipe section of claim 2 wherein, The inner wall surface of the reinforcing frame is provided with a protective layer.

9. The pipe section of claim 1 wherein, The reinforcing mechanism comprises a reinforcing cage surrounding the inner wall of the caisson groove, and the reinforcing cage and the reinforcing cage are integrally connected.

10. The pipe section according to any one of claims 1 to 9, characterized in that The caisson groove is a centrally recessed groove; or the caisson groove is a long groove transversely crossing the opposite two side walls of the segment.

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