Road backfilling structure

Abstract

The utility model discloses a road backfilling structure and relates to the technical field of road construction. The concrete pipe joint comprises a plurality of concrete pipe joints, the concrete pipe joints are connected end to end, a plurality of tensioning holes are formed in the concrete pipe joints, the same tensioning steel strand is arranged in the corresponding tensioning holes of the concrete pipe joints, and the tensioning steel strands are used for fixing the concrete pipe joints. A pavement structure layer is arranged on the top of the concrete pipe joint, and a cavity is formed in the concrete pipe joint. The road backfilling structure is formed by connecting a plurality of concrete pipe joints end to end, the connecting strength can be enhanced through the tensioning steel strands, multi-point fixing of pipeline lines can be achieved through the multiple sets of fixing assemblies, the road backfilling structure adapts to various requirements, the structural design is reasonable, construction is easy, convenient and efficient, the load resistance is good, the overhaul hole is further formed in the top, and the service life is prolonged. Pipeline maintenance is facilitated, and the practicability and reliability of the structure are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of road construction, in particular to a road backfill structure. Background Art

[0002] At present, with the rapid construction and development of urban rail transit, the operating mileage and coverage area are constantly increasing, and the line network density is also constantly improving. Among the urban rail transit lines that have been built and operated, deep underground shield tunnels are the main ones. According to the existing specifications, in order to reduce the impact on the tunnel structure, it is not appropriate to develop and construct related engineering projects in the area directly above the projection area of ​​the deep underground tunnel structure. The relevant engineering construction methods need to be demonstrated in detail and comprehensive protection measures should be taken, which will significantly increase the development and construction costs and have great construction risks.

[0003] However, with the continuous increase in the number of urban rail transit lines, the urban soil resources restricted by urban rail tunnels are also increasing. In actual projects, with the development and construction of the city, the development and utilization of land above the urban rail is becoming more and more frequent.

[0004] Compared with ordinary open spaces, the development and utilization of river and lake water areas under tunnels often causes large deformation of the lower operating tunnel structure, affecting the normal operation of the tunnel, as it involves processes such as pumping out existing water systems, large-scale backfilling, and lake bottom dredging, or it is necessary to drive a large number of settlement-reducing piles on both sides of the tunnel and set concrete beams and slabs above the tunnel to protect the operating tunnel structure, but the construction period is long, the construction cost is high, and the construction risk is great. Utility Model Content

[0005] The purpose of the utility model is to provide a road backfill structure. In the utility model, the road backfill structure is formed by connecting a plurality of concrete pipe sections end to end, and the connection strength can be enhanced by tensioning the steel strands. The setting of multiple groups of fixing components can realize multi-point fixation of the pipeline line to adapt to various needs. The structure is reasonably designed, the construction is simple and efficient, and the load-bearing capacity cavity is strong. An inspection hole is also provided on the top to facilitate pipeline maintenance, thereby improving the practicability and reliability of the structure and solving the existing technical problems.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] Road backfill structure, including:

[0008] A plurality of concrete pipe segments, the plurality of concrete pipe segments are connected end to end, a plurality of tensioning holes are opened inside the concrete pipe segments, a same tensioning steel strand is arranged in the corresponding tensioning holes of the plurality of concrete pipe segments, the plurality of tensioning steel strands are used to fix the plurality of concrete pipe segments, a pavement structure layer is arranged on the top of the concrete pipe segment, a cavity is opened inside the concrete pipe segment, and the cavity is used to lay the pipeline;

[0009] It also includes a plurality of fixing components, which are respectively arranged in the cavities of a plurality of concrete pipe sections, and are used to fix the pipes in the cavities.

[0010] Optionally, the fixing assembly includes a mounting frame fixedly mounted on the bottom inner wall of the cavity, a placement seat is fixedly mounted on the bottom inner wall of the mounting frame, a plurality of limiting grooves are formed on the top of the placement seat, and the plurality of limiting grooves are used for placing and limiting the pipeline.

[0011] Optionally, the fixing assembly also includes a fixing seat slidably arranged in the mounting frame, the fixing seat is located above the placing seat, and a plurality of grooves matching the limit grooves are formed on the bottom of the fixing seat. A fixing rod is fixedly installed on the top of the placing seat, and the top end of the fixing rod slides through the fixing seat and is fixedly connected to the top inner wall of the mounting frame. A first screw is rotatably arranged on the top of the placing seat, and the first screw is located at an end of the placing seat away from the fixing rod. The top thread of the first screw penetrates the fixing seat and is rotatably connected to the top inner wall of the mounting frame, and the outer wall fixing sleeve of the first screw is provided with a hexagonal adjustment column for rotating the first screw.

[0012] Optionally, the outer wall sliding sleeve of the first screw and the fixed rod is provided with the same mounting plate, the mounting plate is located above the fixed seat and fixedly connected to the top of the fixed seat, a slide groove is provided inside the mounting plate, a through groove is provided inside the fixed seat, the slide groove and the through groove correspond to each other, a plurality of sliding blocks are slidingly arranged inside the slide groove, a second screw is threadedly penetrated inside the plurality of sliding blocks, a plurality of second screws are penetrated through the through groove at the bottom ends and a pressing pad is fixedly installed thereon, and a plurality of pressing pads are used to assist in fixing the pipe on the placement seat.

[0013] Optionally, an inspection hole is opened on the top of the concrete pipe section, and the inspection hole penetrates the corresponding pavement structure layer. The inspection hole is used to inspect the pipeline equipment inside the cavity.

[0014] Optionally, the plurality of pressing pads are all made of rubber, and the bottoms of the plurality of pressing pads are all provided with anti-slip textures for further contact, fitting and pressing and fixing the pipeline.

[0015] The embodiments of the present invention have the following beneficial effects:

[0016] In the utility model, a road backfill structure is formed by connecting multiple concrete pipe sections end to end, and tensioning steel strands are arranged inside the pipe sections, which effectively enhances the connection strength and overall stability between the pipe sections, and is conducive to the laying of roads in areas where tunnels pass through rivers and lakes.

[0017] In the utility model, multiple groups of fixing components are arranged inside the pipe section, and the pipe line laid inside the pipe section is fixed at multiple points through structures such as the limit groove, the fixing seat, and the first screw rod. Not only is the fixing effect significant, but it can also adapt to the fixing requirements of pipes with different diameters and layouts.

[0018] In the utility model, the fixed component structure is reasonably designed and easy to install, which can greatly improve the construction efficiency. In addition, due to the use of multi-point fixation and enhanced connection strength design, the road backfill structure can effectively resist the impact of external loads and vibrations on the pipeline line, thereby extending the service life of the pipeline line.

[0019] In the utility model, an inspection hole is provided at the top of the road backfill structure and penetrates the corresponding pavement structure layer, so that the pipeline equipment inside the cavity can be easily inspected and maintained without affecting the road traffic, thereby effectively improving the practicality and reliability of the road backfill structure.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of a three-dimensional structure of an embodiment of the utility model;

[0023] Figure 2 It is a side cross-sectional structural schematic diagram of an embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of a fixing assembly according to an embodiment of the utility model;

[0025] Figure 4 The figure is a schematic diagram of the disassembled structure of the fixing base according to one embodiment of the utility model.

[0026] In the figure: 1. concrete pipe section; 2. cavity; 3. tensioning hole; 4. tensioning steel strand; 5. pavement structure layer; 6. inspection hole; 7. mounting frame; 8. placement seat; 9. fixing rod; 10. first screw; 11. hexagonal adjustment column; 12. fixing seat; 13. mounting plate; 14. limiting groove; 15. slide groove; 16. through groove; 17. slider; 18. second screw; 19. pressing pad. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0030] Example 1

[0031] See also Figure 1-4 As shown, in this embodiment, a road backfill structure is provided, which is used in the technical field of road construction, including:

[0032] A plurality of concrete pipe segments 1 are connected end to end, and each concrete pipe segment 1 is provided with a plurality of tensioning holes 3 inside, and these tensioning holes 3 are used to pass tensioning steel strands 4, and the plurality of concrete pipe segments 1 are fixedly connected together by tensioning steel strands 4 to enhance the stability and bearing capacity of the overall structure; in addition, a cavity 2 is designed inside the concrete pipe segment 1, and the cavity 2 is used to lay various pipes, such as drainage pipes, cable pipes, etc. On the top of the concrete pipe segment 1, a pavement structure layer 5 is provided to ensure the normal traffic function of the road.

[0033] Furthermore, the fixing assembly mainly includes a mounting frame 7, a placement seat 8, a fixing seat 12 and related adjustment and fixing mechanisms; the mounting frame 7 is fixedly installed on the bottom inner wall of the cavity 2, on which a placement seat 8 is arranged, and a plurality of limit grooves 14 are opened on the top of the placement seat 8 for preliminary positioning and supporting the pipeline; the fixing seat 12 is slidably arranged in the mounting frame 7, located above the placement seat 8, and the bottom of the fixing seat 12 is designed with a groove matching the limit groove 14 to further stabilize the pipeline; in order to adjust the position of the fixing seat 12, a fixing rod 9 and a first screw 10 are also provided in the mounting frame 7, and the fixing rod 9 is fixedly connected to the top and bottom of the mounting frame 7 to play a guiding role; and the first screw 10 is rotated through the hexagonal adjustment column 11 to drive the fixing seat 12 to move up and down along the fixing rod 9, thereby realizing the compression and fixation of the pipeline.

[0034] Furthermore, a mounting plate 13 is arranged above the fixing seat 12, the mounting plate 13 is fixedly connected to the top of the fixing seat 12, and a slide groove 15 is opened in the mounting plate 13, which corresponds to the through groove 16 opened in the fixing seat 12; a plurality of sliders 17 are slidably arranged in the slide groove 15, and a second screw rod 18 is threadedly penetrated inside each slider 17; by rotating the second screw rod 18, the slider 17 and the pressing pad 19 at the bottom thereof can be driven to move up and down, and in conjunction with the movement of the slider 17 in the slide groove 15, the pressing pad 19 can be made to fit closely to the pipeline laid below, thereby completing the pressing and fixing of other pipelines with smaller diameters.

[0035] Example 2

[0036] Reference Figure 1 , 4 , improved on the basis of Example 1:

[0037] In order to facilitate the inspection and maintenance of the pipeline in the cavity 2, one or more inspection holes 6 are opened on the top of each concrete pipe section 1. These inspection holes 6 penetrate the pavement structure layer 5 so that maintenance personnel can easily enter the cavity 2.

[0038] The pressing pad 19 is made of rubber material and has anti-skid patterns on the bottom to enhance the contact, fit and pressing and fixing effect on the pipeline.

[0039] The height of the placement seat 8 should be higher than the height of the side wall of the cavity 2 to ensure that when the pipeline line is laid in the cavity 2, it can be normally placed on the placement seat 8 to complete the corresponding fixation.

[0040] The use process and working principle of the technical solution of this utility model are as follows:

[0041] During use, the user needs to determine the length of the concrete pipe segment 1 to be cast at one time according to the conditions of the on-site space, and determine the height of the concrete pipe segment 1 according to the water depth calculation, and the width of the concrete pipe segment 1 is determined according to the designed width of the road; then the concrete pipe segment 1 can be cast first, and transported to the predetermined position above the tunnel by floating, and then the prefabricated concrete structure is sunk to the designated position by gradually injecting water into the cavity 2, and the concrete structure is sunk in sections in the above order; after the entire concrete structure is sunk, multiple concrete pipe segments 1 can be tensioned and connected by tensioning steel strands 4, and then the water inside the concrete structure can be removed, and the cavity 2 inside the concrete pipe segment 1 can be used to place various pipelines laid along the road; while casting the concrete structure, the silt on the bottom of the water can be cleaned It is cleared and backfilled with sand and crushed stone, which can be used as the foundation of the concrete structure; further, after the concrete pipe segment 1 is manufactured, the corresponding fixing components can be installed in the cavity 2, and when the pipeline is laid in the cavity 2, the staff can enter the cavity 2 through the inspection hole 6, and classify the pipelines and place them in the multiple limit grooves 14 on the placement seat 8. After that, the staff can complete the lowering of the fixing seat 12 by rotating the first screw 10, and the fixing seat 12 will press and fix the pipeline line with the largest diameter. After that, the user can slide and adjust the position of multiple pressing pads 19, and rotate the second screw 18 to lower the pressing pad 19. The pressing pad 19 can press and fix other smaller and thinner pipelines separately, which can ensure the stability of the pipeline in the cavity 2 and is conducive to its long-term use.

[0042] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are merely used to distinguish between various features and have no actual order or directional meaning, and this application is not limited to this.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. Road backfill structure, characterized in that: include: A plurality of concrete pipe segments (1), wherein the plurality of concrete pipe segments (1) are connected end to end, wherein a plurality of tensioning holes (3) are provided inside the concrete pipe segments (1), wherein the same tensioning steel strand (4) is provided inside the corresponding tensioning holes (3) of the plurality of concrete pipe segments (1), wherein the plurality of tensioning steel strands (4) are used to fix the plurality of concrete pipe segments (1), wherein a pavement structure layer (5) is provided on the top of the concrete pipe segment (1), wherein a cavity (2) is provided inside the concrete pipe segment (1), wherein the cavity (2) is used to lay a pipeline; It also comprises a plurality of sets of fixing components, wherein the plurality of sets of fixing components are respectively arranged in the cavities (2) of a plurality of concrete pipe sections (1), and the plurality of sets of fixing components are used to fix the pipes in the cavities (2).

2. The road backfill structure according to claim 1, characterized in that: The fixing assembly comprises a mounting frame (7) fixedly mounted on the bottom inner wall of the cavity (2); a placement seat (8) is fixedly mounted on the bottom inner wall of the mounting frame (7); a plurality of limiting grooves (14) are provided on the top of the placement seat (8); and the plurality of limiting grooves (14) are used for placing and limiting the pipeline.

3. The road backfill structure as claimed in claim 2, characterized in that: The fixing assembly also includes a fixing seat (12) slidably arranged in the mounting frame (7), the fixing seat (12) is located above the placement seat (8), and a plurality of grooves matching the limiting grooves (14) are opened at the bottom of the fixing seat (12). A fixing rod (9) is fixedly installed on the top of the placement seat (8), and the top end of the fixing rod (9) slides through the fixing seat (12) and is fixedly connected to the top inner wall of the mounting frame (7). A first screw rod (10) is rotatably arranged on the top of the placement seat (8), and the first screw rod (10) is located at the end of the placement seat (8) away from the fixing rod (9). The top end of the first screw rod (10) is threadedly penetrated through the fixing seat (12) and is rotatably connected to the top inner wall of the mounting frame (7). The outer wall fixed sleeve of the first screw rod (10) is provided with a hexagonal adjustment column (11) for rotating the first screw rod (10).

4. The road backfill structure as claimed in claim 3, characterized in that: The outer walls of the first screw rod (10) and the fixed rod (9) are slidably sleeved with the same mounting plate (13), the mounting plate (13) is located above the fixed seat (12) and is fixedly connected to the top of the fixed seat (12), a slide groove (15) is provided inside the mounting plate (13), a through groove (16) is provided inside the fixed seat (12), the slide groove (15) and the through groove (16) correspond to each other, a plurality of sliders (17) are slidably provided inside the slide groove (15), a second screw rod (18) is threadedly penetrated inside the plurality of sliders (17), the bottom ends of the plurality of second screw rods (18) penetrate the through groove (16) and are fixedly mounted with a pressing pad (19), and the plurality of pressing pads (19) are used to assist in fixing the pipe on the placement seat (8).

5. The road backfill structure according to claim 1, characterized in that: A maintenance hole (6) is provided at the top of the concrete pipe section (1), the maintenance hole (6) penetrates the corresponding pavement structure layer (5), and the maintenance hole (6) is used to inspect the pipeline equipment inside the cavity (2).

6. The road backfill structure according to claim 4, characterized in that: The plurality of pressing pads (19) are all made of rubber, and the bottoms of the plurality of pressing pads (19) are all provided with anti-slip patterns for further contact, fitting and pressing and fixing the pipeline.

7. The road backfill structure as claimed in claim 2, characterized in that: The height of the placement seat (8) should be higher than the height of the side wall of the cavity (2) to ensure that when the pipeline is laid in the cavity (2), it can be normally placed on the placement seat (8) to complete the corresponding fixation.

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