Underground box culvert structure

Abstract

The utility model discloses an underground box culvert structure which comprises an underground groove and a box culvert, the box culvert is placed at the bottom of the underground groove, a first backfill material layer for burying the box culvert is backfilled at the bottom of the underground groove, and a second backfill material layer and a third backfill material layer are alternately backfilled on the underground groove above the first backfill material layer. The third backfill material layer comprises a plurality of tires, the tires are laid on the second backfill material layer, every two adjacent tires are fixedly connected through a connecting assembly, the tires are connected into a whole, and the interiors and the exteriors of the tires are filled with third backfill materials. According to the underground box culvert structure, the pressure applied to the box culvert is reduced, the box culvert is prevented from being damaged by pressing, the service life of the box culvert is prolonged, and the maintenance cost of the box culvert is reduced.

Description

Technical Field

[0001] This utility model relates to the field of box culvert construction technology, specifically to an underground box culvert structure. Background Technology

[0002] Box culverts, as a crucial component of transportation infrastructure, play a vital role in ensuring traffic safety and promoting economic development. Existing box culvert structures typically consist of an underground trench and a box culvert itself. The trench is filled with backfill soil, burying the box culvert within it. However, with the increasing volume of urban traffic and vehicle loads, the box culverts face greater load-bearing pressure. The current backfilling method causes this pressure to act directly on the box culvert, making it prone to damage and increasing maintenance costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an underground box culvert structure that reduces the pressure applied to the box culvert, avoids damage to the box culvert, improves the service life of the box culvert, and reduces the maintenance cost of the box culvert.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An underground box culvert structure includes an underground trench and a box culvert. The box culvert is placed at the bottom of the underground trench. The bottom of the underground trench is backfilled with a first backfill material layer for burying the box culvert. The underground trench is alternately backfilled with a second backfill material layer and a third backfill material layer above the first backfill material layer. The third backfill material layer includes a plurality of tires. Each tire is laid flat on the second backfill material layer. Adjacent tires are fixedly connected by connecting components to form a whole. The tires are filled with the third backfill material inside and out.

[0006] As a further improvement to the above technical solution:

[0007] The connecting assembly includes a screw and nuts at both ends of the screw. The screw passes through the opposite sidewalls of adjacent tires, and the nuts at both ends of the screw abut against the adjacent tires.

[0008] The tires are arranged in both horizontal and vertical directions.

[0009] The underground trench is V-shaped.

[0010] The tires on both sides rest against the inner walls of the underground trench.

[0011] The third backfill material layer consists of at least two layers.

[0012] The third backfill material is construction waste.

[0013] The second backfill material layer is a construction waste layer, and the thickness of the second backfill material layer is not less than 300mm.

[0014] The first backfill material layer is a soil layer or a sand layer.

[0015] A mortar layer is laid on top of the alternating layers formed by the second and third backfill material layers.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] The underground box culvert structure of this utility model has a second backfill material layer and a third backfill material layer alternately backfilled on top of the box culvert. The third backfill material layer is mainly composed of tires and third backfill material connected together. When the upper part is subjected to bearing pressure, the third backfill material layer can effectively disperse the upper load and absorb some vibration, reduce the pressure applied to the box culvert, avoid damage to the box culvert, improve the service life of the box culvert, and reduce the maintenance cost of the box culvert. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the underground box culvert structure of this utility model.

[0019] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0020] Figure 3 This is a schematic diagram of the third backfill material layer of the underground box culvert structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the connecting components of the underground box culvert structure of this utility model.

[0022] The labels in the diagram represent:

[0023] 1. Underground trench; 2. Box culvert; 3. First backfill material layer; 4. Second backfill material layer; 5. Third backfill material layer; 6. Tire; 7. Connecting assembly; 71. Screw; 72. Nut. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Figures 1 to 4 This invention illustrates an embodiment of an underground box culvert structure. The underground box culvert structure of this embodiment includes an underground trench 1 and a box culvert 2. The box culvert 2 is placed at the bottom of the underground trench 1. The bottom of the underground trench 1 is backfilled with a first backfill material layer 3 to which the box culvert 2 is buried. The underground trench 1 is alternately backfilled with a second backfill material layer 4 and a third backfill material layer 5 above the first backfill material layer 3. The third backfill material layer 5 includes a plurality of tires 6. Each tire 6 is laid flat on the second backfill material layer 4. Adjacent tires 6 are fixedly connected by connecting components 7, so that each tire 6 is connected into a whole. The tires 6 are filled with the third backfill material inside and out.

[0029] In this underground box culvert structure, a second backfill material layer 4 and a third backfill material layer 5 are alternately backfilled on top of box culvert 2. The third backfill material layer 5 is mainly composed of tires 6 connected to the third backfill material. When the upper part is subjected to bearing pressure, the third backfill material layer 5 can effectively disperse the upper load and absorb some vibration, reduce the pressure applied to box culvert 2, avoid damage to box culvert 2, improve the service life of box culvert 2, and reduce the maintenance cost of box culvert 2.

[0030] Furthermore, such as Figure 4 As shown, in this embodiment, the connecting assembly 7 includes a screw 71 and nuts 72 at both ends of the screw 71. The screw 71 passes through the opposite sidewalls of adjacent tires 6, and the nuts 72 at both ends of the screw 71 are respectively tightened onto the adjacent tires 6. The structure is simple, the connection operation is convenient, and the box culvert 2 is firmly connected.

[0031] Furthermore, in this embodiment, each tire 6 is arranged in a transverse and longitudinal pattern. For example... Figure 3 As shown, each tire 6 is arranged horizontally and vertically, covering the upper surface of the second backfill material layer 4.

[0032] Furthermore, such as Figure 1 As shown, in this embodiment, the underground trench 1 is V-shaped. That is, the sidewalls of the underground trench 1 slope outward to prevent collapse during construction.

[0033] Furthermore, in this embodiment, the tires 6 located on both sides abut against the inner walls of the underground trench 1 on both sides. In this way, when the upper part is subjected to downward pressure, the entire layer connected by the tires 6 can redirect more of the downward pressure to the side walls of the underground trench 1, further improving the dispersion effect on the upper load.

[0034] Furthermore, in this embodiment, the third backfill material layer 5 has at least two layers. From bottom to top, a second backfill material layer 4 is laid first, followed by a third backfill material layer 5. The third backfill material layer 5 has at least two layers, such as two, three, or four layers. The more third backfill material layers 5 there are, the better the effect of dispersing the upper load, but the higher the construction cost.

[0035] Furthermore, in this embodiment, the third backfill material is construction slag. Construction slag is the debris from demolished buildings, a mixture of various building fragments (such as rubble, slag bricks, etc.). This achieves the effect of waste utilization.

[0036] In this embodiment, the construction waste is made by crushing and grading construction waste such as waste concrete blocks and bricks, and the particle size range is 0.05-2 cm.

[0037] Furthermore, in this embodiment, the second backfill material layer 4 is a construction slag layer, and the thickness of the second backfill material layer 4 is not less than 300mm.

[0038] Furthermore, in this embodiment, the first backfill material layer 3 is a soil layer or a sand layer.

[0039] Furthermore, in this embodiment, a mortar layer is laid on top of the alternating layers formed by the second backfill material layer 4 and the third backfill material layer 5.

[0040] Furthermore, in this embodiment, the tire 6 is a waste tire with an outer diameter of 555 mm and a thickness of 220 mm.

[0041] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. An underground box culvert structure, comprising an underground trench (1) and a box culvert (2), characterized in that: The box culvert (2) is placed at the bottom of the underground trench (1). The bottom of the underground trench (1) is backfilled with a first backfill material layer (3) for burying the box culvert (2). The underground trench (1) is alternately backfilled with a second backfill material layer (4) and a third backfill material layer (5) above the first backfill material layer (3). The third backfill material layer (5) includes multiple tires (6). Each tire (6) is laid flat on the second backfill material layer (4). Two adjacent tires (6) are fixedly connected by a connecting component (7) so that each tire (6) is connected into one unit. The tires (6) are filled with the third backfill material inside and out.

2. The underground box culvert structure according to claim 1, characterized in that: The connecting assembly (7) includes a screw (71) and nuts (72) at both ends of the screw (71). The screw (71) passes through the opposite sidewalls of the adjacent tires (6), and the nuts (72) at both ends of the screw (71) abut against the adjacent tires (6).

3. The underground box culvert structure according to claim 1, characterized in that: The tires (6) are arranged in a transverse and longitudinal pattern.

4. The underground box culvert structure according to claim 1, characterized in that: The underground trench (1) is V-shaped.

5. The underground box culvert structure according to claim 4, characterized in that: The tires (6) located on both sides abut against the inner walls on both sides of the underground trench (1).

6. The underground box culvert structure according to claim 1, characterized in that: The third backfill material layer (5) has at least two layers.

7. The underground box culvert structure according to any one of claims 1 to 6, characterized in that: The third backfill material is construction waste.

8. The underground box culvert structure according to any one of claims 1 to 6, characterized in that: The second backfill material layer (4) is a construction slag layer, and the thickness of the second backfill material layer (4) is not less than 300mm.

9. The underground box culvert structure according to any one of claims 1 to 6, characterized in that: The first backfill material layer (3) is a soil layer or a sand layer.

10. The underground box culvert structure according to any one of claims 1 to 6, characterized in that: A mortar layer is laid on top of the alternating layers formed by the second backfill material layer (4) and the third backfill material layer (5).

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