An arch culvert

Abstract

The utility model relates to culvert engineering technical field, concretely relates to an arch culvert, including pedestal, arch ring, first connecting bolt and pre -buried subassembly, pedestal is located the mounting surface, pre -buried subassembly is preset on the two ends of pedestal top surface, and with pedestal fixed, arch ring is located the top of pedestal, and the arch foot of arch ring both sides links to each other with pre -buried subassembly, and the arch foot of arch ring is fixed in pre -buried subassembly through first connecting bolt, the utility model provides an arch culvert installation process is relatively simple, need not use large -scale hoisting equipment to carry out the persistent hoisting, will not be restricted by space or special environmental condition in the installation process, can effectively guarantee the construction process and construction quality of arch culvert.

Description

Technical Field

[0001] This utility model relates to the field of culvert engineering technology, specifically to an arched culvert. Background Technology

[0002] Arched culverts are widely used in the construction of highways, railways, bridges, municipal works, mines and other projects.

[0003] Currently, both traditional reinforced concrete culverts and steel-concrete composite culverts require formwork and concrete pouring during construction. This necessitates the use of large cranes to hoist and position the arch ring for subsequent construction. Furthermore, the construction process is complex, and normal construction is not possible in special environmental conditions such as proximity to high-voltage lines or narrow sites. Overall, the environmental adaptability is poor. In addition, large equipment cannot be brought into the site under confined space or special environmental conditions, which seriously affects the construction progress and quality. Utility Model Content

[0004] (i) This utility model provides an arched culvert to alleviate the technical problem that the overall environmental adaptability of arched culverts in the prior art is poor, and that large equipment cannot enter the site to work under limited space or special environmental conditions, which seriously affects the construction process and quality.

[0005] (II) Technical Solution To solve the above-mentioned technical problems, the embodiments of this utility model provide an arched culvert, including a base, an arch ring, a first connecting bolt, and a pre-embedded component; The base is provided on the mounting surface, and the pre-embedded components are pre-installed at both ends of the top surface of the base and fixed to the base; The arch is located above the base, and the arch feet on both sides of the arch are connected to the pre-embedded components respectively. The arch feet of the arch are fixed to the pre-embedded components by the first connecting bolt.

[0006] Furthermore, the base has a groove, and the groove and the arch ring together form a walking area.

[0007] Furthermore, the pre-embedded components include pre-embedded angle steel and a first anchor bolt; The pre-embedded angle steels are respectively pre-set on the top surface of the base on both sides of the groove, and the pre-embedded angle steels are fixed to the base by the first anchor bolt.

[0008] Furthermore, the embedded angle steel includes horizontal plates and vertical plates; The horizontal plate is pressed against the top surface of the base, the vertical plate is vertically disposed on the top surface of the horizontal plate, the arch foot of the arch ring is attached to the side wall of the vertical plate, and the arch foot of the arch ring is fixed to the vertical plate by the first connecting bolt.

[0009] Furthermore, the arched culvert also includes a reinforcing arch ring and a second anchor bolt; The reinforcing arch is located on the outside of the arch, and connecting plates are fixed to the arch feet on both sides of the reinforcing arch. The connecting plates are fixed to the base by the second anchor bolt.

[0010] Furthermore, the reinforcing arch is fixed to the outside of the arch by a second connecting bolt.

[0011] Furthermore, multiple reinforcing arches are provided, and the multiple reinforcing arches are arranged at intervals along the extension direction of the arch.

[0012] Furthermore, a road surface is provided at the bottom of the walking area for passage.

[0013] Furthermore, retaining walls are provided on both sides of the road surface, and a drainage ditch is provided between the side of the retaining wall away from the road surface and the inner wall of the base.

[0014] Furthermore, a backfill area is provided on the outer side of the arch and the base, and the top surface of the backfill area is at the same height as the roadbed.

[0015] The beneficial effects of this utility model are: This utility model provides an arched culvert comprising a base, an arch ring, a first connecting bolt, and pre-embedded components. During installation, the base is first set above the installation surface, and pre-embedded components are pre-set at both ends of the top surface of the base. The pre-embedded components are fixed to the base to maintain stability. The arch feet on both sides of the arch ring above the base are connected to the pre-embedded components, and the arch feet of the arch ring are fixed to the pre-embedded components by using the first connecting bolt. The installation process is relatively simple, does not require the use of large hoisting equipment for continuous hoisting, and is not limited by space or special environmental conditions during installation, which can effectively ensure the construction progress and construction quality of the arched culvert. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the overall structure of the arched culvert provided for an embodiment of the utility model; Figure 2 A side view of the overall structure of the arched culvert provided in the embodiment of the utility model; Figure 3A schematic diagram showing the connection between the arch foot of the arch ring and the pre-embedded angle steel in an arched culvert provided for an embodiment of the utility model; Figure 4 A schematic diagram of the reinforcing arch ring and connecting plate structure of the arched culvert provided for an embodiment of the utility model; Figure 5 A top view of the connecting plate of the arched culvert provided in an embodiment of the utility model.

[0018] icon: 100 - Base; 101 - Embedded angle steel; 1011 - Horizontal plate; 1012 - Vertical plate; 102 - First anchor bolt; 103 - Second anchor bolt; 200 - Arch ring; 201 - Reinforcing arch ring; 2011 - Connecting plate; 300 - First connecting bolt; 301 - Second connecting bolt; 400 - Road surface; 401 - Retaining wall; 402 - Drainage ditch; 500 - Backfill area; 600-Roadbed. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] Example 1 like Figures 1 to 5 As shown, this utility model provides an arched culvert, including a base 100, an arch ring 200, a first connecting bolt 300, and pre-embedded components; The base 100 is located on the mounting surface, and the pre-embedded components are pre-installed at both ends of the top surface of the base 100 and fixed to the base 100; The arch ring 200 is located above the base 100. The arch feet on both sides of the arch ring 200 are connected to the pre-embedded components respectively. The arch feet of the arch ring 200 are fixed to the pre-embedded components by the first connecting bolt 300.

[0023] In this embodiment, the arched culvert includes a base 100, an arch ring 200, a first connecting bolt 300, and pre-embedded components. During installation, the base 100 is first set above the installation surface. Pre-embedded components are pre-set at both ends of the top surface of the base 100. The pre-embedded components are fixed to the base 100 to maintain stability. The arch feet on both sides of the arch ring 200 set above the base 100 are connected to the pre-embedded components. The arch feet of the arch ring 200 are fixed to the pre-embedded components by using the first connecting bolt 300. The installation process is relatively simple and does not require the use of large hoisting equipment for continuous hoisting. The installation process is not limited by space or special environmental conditions, which can effectively ensure the construction progress and construction quality of the arched culvert.

[0024] The base 100 is made of concrete. During the installation of the base 100, the foundation side formwork is installed first, and the rigidity and flatness of the formwork are ensured. Then, the foundation reinforcement is tied and the thickness of the protective layer is controlled at 40mm. At the same time, a special positioning frame is used to accurately fix the pre-embedded anchor bolts. The concrete is C30 or higher grade, and the slump is controlled at 120±20mm. It is poured in layers, and the thickness of each layer does not exceed 50cm. An immersion vibrator is used to fully vibrate the concrete. After the concrete is poured, it is covered and cured for no less than 7 days. After the concrete strength reaches 75% of the design strength, an inspection and acceptance are carried out to ensure that the positional deviation of the pre-embedded components and the flatness of the foundation surface meet the specifications. Correspondingly, the arch ring 200 is made of corrugated steel plate. Before installation, the arch ring 200 needs to be checked for numbering and placed in order. During installation, it is carried out symmetrically from the waist of the arch ring 200 on both sides to the top of the arch. After the first section is accurately positioned, it is temporarily fixed with guy ropes and support frames. There is no need to use large hoisting equipment. The deviation of the arch axis is strictly controlled throughout the installation process. An overall shape and position test is carried out every 3 sections installed, and the bolt tightening is recorded in detail to ensure that the connecting parts fit tightly.

[0025] According to one embodiment provided by this utility model, such as Figure 1 As shown, the base 100 has a groove, and the groove and the arch 200 enclose a walking area.

[0026] In this embodiment, the walking area facilitates the passage of vehicles and pedestrians. Of course, two bases 100 can also be arranged at intervals along the same horizontal line to drive the groove to be opened. The purpose of these arrangements does not deviate from the design concept of this utility model and should fall within the protection scope of this utility model.

[0027] According to one embodiment provided by this utility model, such as Figure 3 As shown, the embedded components include embedded angle steel 101 and first anchor bolt 102; The pre-embedded angle steels 101 are respectively pre-embedded on the top surface of the base 100 on both sides of the groove, and the pre-embedded angle steels 101 are fixed to the base 100 by the first anchor bolts 102.

[0028] In this embodiment, the top surfaces of the bases 100 on both sides of the groove are respectively pre-embedded angle steels 101. During the installation process, it is necessary to ensure that the deviation of the pre-embedded angle steels 101 meets the specifications, and the pre-embedded angle steels 101 are tightly fixed to the bases 100 using the first anchor bolts 102. The arch ring 200 is connected through the pre-embedded angle steels 101 to ensure the stability and ease of installation of the arch ring 200.

[0029] According to one embodiment provided by this utility model, such as Figure 3 As shown, the embedded angle steel 101 includes a horizontal plate 1011 and a vertical plate 1012; The horizontal plate 1011 is pressed onto the top surface of the base 100, the vertical plate 1012 is vertically disposed on the top surface of the horizontal plate 1011, the arch foot of the arch ring 200 is attached to the side wall of the vertical plate 1012, and the arch foot of the arch ring 200 is fixed to the vertical plate 1012 by the first connecting bolt 300.

[0030] In this embodiment, the horizontal plate 1011 and the vertical plate 1012 are vertically connected, forming a right-angle corner. By pressing the horizontal plate 1011 onto the top surface of the base 100, it is easy to connect the vertical plate 1012 to the arch foot of the arch ring 200. Along the longitudinal direction of the arch ring 200, the arch foot of the arch ring 200 and the vertical plate 1012 are fixed relative to each other by using multiple first connecting bolts 300, ensuring the connection strength and stability during use.

[0031] According to one embodiment provided by this utility model, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the arched culvert also includes a reinforcing arch ring 201 and a second anchor bolt 103; The reinforcing arch 201 is located on the outside of the arch 200. The arch feet on both sides of the reinforcing arch 201 are respectively fixed with connecting plates 2011. The connecting plates 2011 are fixed to the base 100 by the second anchor bolts 103.

[0032] In this embodiment, a reinforcing arch 201 is also provided on the outer side of the arch 200. The reinforcing arch 201 enhances the load-bearing capacity of the arched culvert. To facilitate the connection and stability between the reinforcing arch 201 and the base 100, connecting plates 2011 are fixed to the arch feet on both sides of the reinforcing arch 201. The connecting plates 2011 are fixed to the base 100 using second anchor bolts 103. During installation, the upper surface of the base 100 is first cleaned, then the connecting plates 2011 are installed. The second anchor bolts 103 are tightened using a torque wrench to ensure a sufficiently stable connection.

[0033] According to one embodiment of the present invention, the reinforcing arch 201 is fixed to the outside of the arch 200 by a second connecting bolt 301.

[0034] In this embodiment, during installation, the reinforcing arch 201 and the arch 200 are fixed relative to each other using the second connecting bolt 301. The second connecting bolt 301 is tightened to the designed torque in two stages. If necessary, shims are added between the reinforcing arch 201 and the arch 200 to adjust the gap. Finally, the tightening quality of all connection points is checked, the overall geometry of the structure is measured, and necessary adjustments and reinforcements are made.

[0035] According to one embodiment provided by this utility model, such as Figure 2 As shown, there are multiple reinforcing arches 201, which are arranged at intervals along the extension direction of the arch 200.

[0036] In this embodiment, preferably, the reinforcing arch 201 is made of H-beams and is arranged at 1m intervals along the longitudinal direction of the arch 200. Of course, the interval can also be 0.8m, 1.2m or other values, which can be set according to the actual use.

[0037] According to one embodiment provided by this utility model, such as Figure 1 As shown, a road surface 400 is provided at the bottom of the walking area for passage.

[0038] In this embodiment, in order to facilitate the smooth passage of vehicles inside the arched culvert, a road surface 400 is laid at the bottom of the walking area. Vehicles can pass through the arched culvert along its extension direction via the road surface 400. Preferably, the road surface 400 is made of concrete.

[0039] According to one embodiment provided by this utility model, such as Figure 1 As shown, retaining walls 401 are provided on both sides of the road surface 400, and a drainage ditch 402 is provided between the side of the retaining wall 401 away from the road surface 400 and the inner wall of the base 100.

[0040] In this embodiment, in order to ensure that the interior of the arched culvert, i.e. the walking area, will not be flooded due to weather or other factors, a drainage ditch 402 is provided between the side of the retaining wall 401 away from the road surface 400 and the inner wall of the base 100, i.e., two drainage ditches 402 are formed for drainage to prevent water accumulation. At the same time, retaining walls 401 are provided on both sides of the road surface 400 to prevent water in the drainage ditches 402 from entering the road surface 400 and affecting traffic.

[0041] According to one embodiment provided by this utility model, such as Figure 1 and Figure 2 As shown, a backfill area 500 is provided on the outer side of the arch ring 200 and the base 100, and the top surface of the backfill area 500 is at the same height as the roadbed 600.

[0042] In this embodiment, the backfill area 500 is backfilled with fluid soil or foamed lightweight soil, which are self-compacting materials that do not require vibration compaction and will not affect the arched culvert. The material also has a certain strength, about 0.8-1.2 MPa, which can ensure the load strength above the arch ring 200. The roadbed section 600 can be filled normally.

[0043] During the backfilling construction phase, the backfill material is prepared first. For fluid soil, the cement dosage is controlled within the range of 250-350 kg per cubic meter and the water-cement ratio is 0.6-0.7. For foamed lightweight soil, the cement dosage is controlled within the range of 300-400 kg per cubic meter and the foam addition rate is 40-60%. The material fluidity is controlled within the range of 180±20 mm. Backfilling is carried out symmetrically in layers from both sides of the 200mm arch ring, with each layer being 30-50cm thick. The backfilling height per day does not exceed 2m. During construction, a set of strength test specimens is left for every 100 cubic meters to strictly test the density and uniformity of the backfill body, and the elevation and flatness of the top surface of the backfill body are well controlled.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An arched culvert, characterized in that, Includes a base (100), an arch (200), a first connecting bolt (300), and embedded components; The base (100) is provided on the mounting surface, and the pre-embedded components are pre-installed at both ends of the top surface of the base (100) and fixed to the base (100); The arch (200) is located above the base (100), and the arch feet on both sides of the arch (200) are connected to the pre-embedded components respectively. The arch feet of the arch (200) are fixed to the pre-embedded components by the first connecting bolt (300).

2. The arched culvert according to claim 1, characterized in that, The base (100) has a groove, and the groove and the arch (200) together form a walking area.

3. The arched culvert according to claim 2, characterized in that, The embedded components include embedded angle steel (101) and first anchor bolt (102); The pre-embedded angle steel (101) is respectively pre-set on the top surface of the base (100) on both sides of the groove, and the pre-embedded angle steel (101) is fixed to the base (100) by the first anchor bolt (102).

4. The arched culvert according to claim 3, characterized in that, The embedded angle steel (101) includes a horizontal plate (1011) and a vertical plate (1012); The horizontal plate (1011) is pressed against the top surface of the base (100), the vertical plate (1012) is vertically disposed on the top surface of the horizontal plate (1011), the arch foot of the arch ring (200) is attached to the side wall of the vertical plate (1012), and the arch foot of the arch ring (200) is fixed to the vertical plate (1012) by the first connecting bolt (300).

5. The arched culvert according to claim 1, characterized in that, The arched culvert also includes a reinforcing arch ring (201) and a second anchor bolt (103). The reinforcing arch (201) is located on the outside of the arch (200), and the arch feet on both sides of the reinforcing arch (201) are respectively fixed with connecting plates (2011), and the connecting plates (2011) are fixed to the base (100) by the second anchor bolt (103).

6. The arched culvert according to claim 5, characterized in that, The reinforcing arch (201) is fixed to the outside of the arch (200) by the second connecting bolt (301).

7. The arched culvert according to claim 5, characterized in that, Multiple reinforcing arches (201) are provided, and the multiple reinforcing arches (201) are arranged at intervals along the extension direction of the arch (200).

8. The arched culvert according to claim 2, characterized in that, The bottom of the walking area is provided with a road surface (400) for passage.

9. The arched culvert according to claim 8, characterized in that, The road surface (400) is provided with retaining walls (401) on both sides, and a drainage ditch (402) is provided between the side of the retaining wall (401) away from the road surface (400) and the inner wall of the base (100).

10. The arched culvert according to any one of claims 1-9, characterized in that, The arch (200) and the base (100) are provided with a backfill area (500) on their outer sides, and the top surface of the backfill area (500) is at the same height as the roadbed (600).

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