Large-span steel corrugated pipe structure channel with arc-shaped corrugated plates

Abstract

The utility model relates to a large-span steel corrugated pipe structure channel with an arc-shaped corrugated plate, which comprises a corrugated steel pipeline, an arc-shaped corrugated plate supporting system is arranged along the longitudinal center of the corrugated steel pipeline, and the arc-shaped corrugated plate supporting system comprises the arc-shaped corrugated plate, an upper connecting steel plate and a lower connecting steel plate. The arc-shaped corrugated plate is fixed to the corrugated steel pipeline through the upper connecting steel plate and the lower connecting steel plate, the corrugation direction of the arc-shaped corrugated plate is perpendicular to the vertical direction, and the radian of the arc-shaped corrugated plate supporting system ranges from 7 degrees to 13 degrees. According to the large-span steel corrugated pipe structure channel, the arc-shaped corrugated plate supporting system is arranged in the center of the corrugated steel pipeline, the large-span steel corrugated pipe structure channel integrates the advantages of a rigid structure and a flexible structure, and the bearing capacity, deformation resistance and impact resistance are remarkably improved; according to the design, the stress distribution of the channel is optimized, the stress concentration caused by differential settlement or deformation is reduced, the stability and durability of the structure are improved, the structure can adapt to the special environment of a tailing stacking yard, and a convenient and safe channel is provided for the tailing stacking yard.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated steel channels, in particular to a large-span steel corrugated pipe structure channel with arc-shaped corrugated plates. Background Art

[0002] Tailings refer to the solid waste that cannot be economically utilized during mineral processing operations, which are usually transported to tailings ponds for storage. The construction and management of tailings ponds not only occupy a large amount of land resources, but also pose a serious threat to the environment and safety.

[0003] Tailings dump refers to a place outside the tailings pond or other areas where tailings are piled up in a dry or semi-dry manner to form an artificial pile of a certain height and scale. The advantages of a tailings dump are that it can reduce the footprint of the tailings pond, improve the resource utilization rate of tailings, reduce the safety risks of the tailings pond, and improve the environmental impact of the tailings pond.

[0004] Due to the complex terrain of the tailings dump and the different physical and chemical properties of the stored slag, a certain number and specifications of passages need to be set up in the dump to facilitate the entry, exit and transportation of pedestrians, vehicles and equipment. The structural design of the passage should take into account the geological conditions of the tailings dump, the stacking process, the function of the passage, the service life and other factors to ensure the stability, durability and safety of the passage.

[0005] There are two main structural forms of the tailings dump channel at present, one is a rigid structure and the other is a flexible structure. Rigid structures, such as reinforced concrete pipe structures, large-diameter steel pipe structures, prestressed concrete pipe structures, etc., have the advantages of strong bearing capacity and good impact resistance, and are suitable for use in large spans and large loads. However, rigid structures also have disadvantages, such as the heavy weight of prestressed concrete pipes, long construction period, high cost, and difficult maintenance. Moreover, rigid structures cannot adapt to the uneven settlement, deformation, and sudden load changes at the top of the tailings dump, and are prone to cracks, deformation, and damage. Flexible structures, such as plastic corrugated pipe structures, have the advantages of short construction period, low cost, and simple maintenance, and can produce certain deformations with the settlement and deformation of the tailings dump, thereby reducing the possibility of stress concentration and damage. However, flexible structures also have disadvantages, such as weak bearing capacity, poor impact resistance, and easy damage due to external forces and the environment. The tailings dump channel is usually pre-stacking, according to the designed channel position, first install the pipeline, and then stack the solid waste. Since traffic may need to pass through the top of the piled waste, the structural design of the passage also needs to consider the effects of load and vibration.

[0006] Therefore, for the structural design of the tailings dump channel, it is necessary to comprehensively consider the advantages and disadvantages of rigid structure and flexible structure, and seek a new structural form that can not only meet the functional requirements of the channel but also adapt to the special environment of the tailings dump. Summary of the invention

[0007] The utility model provides a large-span steel corrugated pipe structure channel with an arc-shaped corrugated plate, so as to solve the problems of weak bearing capacity, poor deformation resistance and poor impact resistance of the tailings dump channel in the prior art.

[0008] In order to achieve the above purpose, the technical solution proposed by the utility model is:

[0009] A large-span steel corrugated pipe structural channel with an arc-shaped corrugated plate comprises a corrugated steel pipe, a arc-shaped corrugated plate support system is arranged along the longitudinal center of the corrugated steel pipe, the arc-shaped corrugated plate support system comprises an arc-shaped corrugated plate, an upper connecting steel plate and a lower connecting steel plate, the arc-shaped corrugated plate is fixed to the corrugated steel pipe through the upper connecting steel plate and the lower connecting steel plate, the waving direction of the arc-shaped corrugated plate is perpendicular to the vertical direction, and the curvature range of the arc-shaped corrugated plate support system is 7-13°.

[0010] Furthermore, the arc-shaped corrugated plate support system is a continuous structure, the arc-shaped corrugated plate support system is equal in length to the corrugated steel pipe, and the arc-shaped corrugated plate support system includes a plurality of arc-shaped corrugated plates connected in sequence.

[0011] Furthermore, the arc-shaped corrugated plate support system is an intermittent structure, and a plurality of the arc-shaped corrugated plates are arranged at equal intervals in the corrugated steel pipe.

[0012] Furthermore, the arc-shaped corrugated plates are connected with flanges on all sides, and adjacent arc-shaped corrugated plates are aligned and bolted together through the flanges.

[0013] Furthermore, the adjacent arc-shaped corrugated plates are bolted after being stacked peak to valley.

[0014] Furthermore, the corrugated steel pipe is formed into a ring by overlapping a plurality of arc-shaped pipe plates at their peaks and valleys.

[0015] Furthermore, the bottom of the corrugated steel pipe is filled with earth to form a horizontal roadbed.

[0016] Furthermore, the end surface of the corrugated steel pipe is a circular, elliptical, tubular arch or pear-shaped structure.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The large-span steel corrugated pipe structural channel of the utility model arranges an arc-shaped corrugated plate support system in the center of the corrugated steel pipe, which combines the advantages of rigid and flexible structures and significantly improves the bearing capacity, deformation resistance and impact resistance; this design optimizes the stress distribution, reduces the stress concentration caused by uneven settlement or deformation, and improves the stability and durability of the structure; at the same time, the structure also has good adaptability and can adapt to the special environment of the tailings dump, such as uneven settlement and sudden changes in the top load, thereby reducing the risk of cracks, deformation and damage; in addition, the connection method of the arc-shaped corrugated plate simplifies the construction process and improves the construction efficiency, so that the structure has significant advantages in applications such as tailings dumps that require high stability and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a large-span steel bellows structural channel with an arc-shaped corrugated plate in Example 1 of the utility model;

[0020] Figure 2 yes Figure 1 Schematic diagram of the end face;

[0021] Figure 3 yes Figure 2 AA side section view;

[0022] Figure 4 It is a schematic diagram of the structure of the channel after filling in Example 1 of the utility model.

[0023] In the figure, 1-corrugated steel pipe, 2-arc corrugated plate support system, 201-arc corrugated plate, 202-upper connecting steel plate, 203-lower connecting steel plate, 3-horizontal road surface. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0025] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0026] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0027] Embodiment 1:

[0028] A large-span steel corrugated pipe structure channel with curved corrugated plates is used for the construction of a channel in a tailings dump. Figure 1-Figure 3 As shown, where:

[0029] The corrugated steel pipe 1 is a perfect circle with a diameter of 6m and a length of 120m. It is formed by overlapping a number of arc-shaped pipe plates with peaks and valleys, and the thickness of the corrugated steel plate is 5mm, and the material is Q345B steel. Corrugated steel has high strength, high toughness and good welding performance, and is suitable for structures that withstand high pressure and deformation; the corrugated shape of the corrugated steel plate can increase the rigidity and stability of the pipe, and can also provide a certain degree of elasticity and deformability, so that the pipe can adapt to the settlement and deformation of the tailings dump, and reduce the possibility of stress concentration and damage; the overlapping method of the corrugated steel plate adopts peak-to-valley butt joint, and is connected by bolts or welding, which ensures the sealing and integrity of the pipe.

[0030] The arc-shaped corrugated plate support system 2, in this embodiment, is arranged along the longitudinal center of the corrugated steel pipe 1, is equal to the length of the corrugated steel pipe 1, and is continuously arranged in the corrugated steel pipe 1. The arc-shaped corrugated plate support system 2 includes an arc-shaped corrugated plate 201, an upper connecting steel plate 202 and a lower connecting steel plate 203. The arc-shaped corrugated plate 201 is made of high-strength Q345B steel, and its overall arcing arc is 10°. The waveform of the arc-shaped corrugated plate 201 is a sine wave, and the undulation direction is perpendicular to the vertical direction. The design of the undulation direction and the waveform helps to improve the rigidity and stability of the plate, and at the same time allows it to deform elastically to a certain extent to adapt to uneven settlement and load changes; the upper connecting steel plate 202 and the lower connecting steel plate 203 are welded to the upper end and the lower end of the arc-shaped corrugated plate 201 respectively, and the arc-shaped corrugated plate 201 is fixed to the corrugated steel pipe 1 through a plurality of high-strength bolts on both sides through its upper connecting steel plate 202 and the lower connecting steel plate 203.

[0031] In structural design, the key to selecting the curvature of the curved corrugated plate 201 is to balance the elastic range of the material with the required structural rigidity. The curvature of the curved corrugated plate 201 affects its deformation capacity and bearing capacity when subjected to stress. In this embodiment, a 10° curvature is a compromise choice, which provides sufficient rigidity to support the weight of the structure while also allowing a certain degree of elastic deformation to adapt to environmental changes and reduce stress concentration. In addition, the design of the curved corrugated plate also needs to consider the yield strength and elastic modulus of the material. A 10° curvature can provide sufficient elastic deformation space to adapt to possible overload conditions without exceeding the yield strength of the material.

[0032] In this embodiment, the width of a single curved corrugated plate 201 is limited, and the entire curved corrugated plate support system 2 requires a plurality of curved corrugated plates 201 to be overlapped in sequence. The overlap described in this embodiment means that adjacent curved corrugated plates 201 are aligned, overlapped peak to valley, and then connected by high-strength bolts. It should be emphasized that in other embodiments, flanges can also be welded around the curved corrugated plates, and these flanges are used to align and connect adjacent curved corrugated plates by bolting.

[0033] The construction method of the channel is as follows:

[0034] Foundation preparation: First, clean the surface of the tailings dump site to ensure that the construction area is flat and free of debris.

[0035] Trench excavation: According to the design drawings, trenches are excavated at the predetermined channel locations for the installation of corrugated steel pipes 1.

[0036] Assembling the corrugated steel pipe 1: overlapping the prefabricated arc pipe plates into a ring in a peak-to-valley stacking manner to form the corrugated steel pipe 1; connecting the arc pipe plates by bolts or welding to ensure the overall sealing and integrity of the corrugated steel pipe 1.

[0037] Install the arc-shaped corrugated plate support system 2: install the arc-shaped corrugated plate 201 along the longitudinal center of the corrugated steel pipe 1 through its upper connecting steel plate 202 and the lower connecting steel plate 203, and fix it to the corrugated steel pipe 1 through high-strength bolts.

[0038] Filling roadbed: Filling the corrugated steel pipe with appropriate roadbed material to form a stable and level road surface3, see Figure 4 .

[0039] As the waste is piled up, the whole bellows structure channel is buried (except for the channel opening), and the bellows structure channel can pass vehicles and people. The waste pressure covering the upper part of the channel can form an upper channel for vehicles and people to pass through.

[0040] The curved corrugated plate 201 can provide support for the entire channel and provide a certain amount of deformation. When the corrugated steel pipe is subjected to pressure and deformation from waste on the upper part or passing vehicles, the curved corrugated plate 201 can produce corresponding deformation, thereby buffering the stress and deformation of the channel.

[0041] Embodiment 2:

[0042] The present embodiment provides a large-span steel corrugated pipe structure channel with curved corrugated plates. Different from the continuously arranged curved corrugated plate support system in Embodiment 1, the present embodiment adopts a discontinuous curved corrugated plate support system: that is, a plurality of curved corrugated plates are arranged at equal intervals in the corrugated steel pipe; this discontinuous structure can reduce costs while maintaining sufficient structural rigidity and stability of the channel.

[0043] For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A large-span steel corrugated pipe structure channel with curved corrugated plates, characterized in that: It comprises a corrugated steel pipe, and an arc-shaped corrugated plate support system is arranged along the longitudinal center of the corrugated steel pipe, the arc-shaped corrugated plate support system comprises an arc-shaped corrugated plate, an upper connecting steel plate and a lower connecting steel plate, the arc-shaped corrugated plate is fixed to the corrugated steel pipe through the upper connecting steel plate and the lower connecting steel plate, the waving direction of the arc-shaped corrugated plate is perpendicular to the vertical direction, and the curvature range of the arc-shaped corrugated plate support system is 7-13°.

2. The large-span steel corrugated pipe structure channel with curved corrugated plates according to claim 1 is characterized in that: The arc-shaped corrugated plate support system is a continuous structure, the arc-shaped corrugated plate support system is as long as the corrugated steel pipe, and the arc-shaped corrugated plate support system includes a plurality of arc-shaped corrugated plates connected in sequence.

3. The large-span steel corrugated pipe structure channel with curved corrugated plates according to claim 1 is characterized in that: The arc-shaped corrugated plate support system is a discontinuous structure, and a plurality of the arc-shaped corrugated plates are arranged at equal intervals in the corrugated steel pipe.

4. The large-span steel corrugated pipe structure channel with curved corrugated plates according to claim 2 is characterized in that: The arc-shaped corrugated plates are connected with flanges on all sides, and adjacent arc-shaped corrugated plates are aligned and bolted together through the flanges.

5. The large-span steel corrugated pipe structure channel with curved corrugated plates according to claim 2, characterized in that: The adjacent arc-shaped corrugated plates are bolted after being stacked peak to valley.

6. The large-span steel corrugated pipe structure channel with curved corrugated plates according to claim 1, characterized in that: The corrugated steel pipe is formed into a ring by overlapping a plurality of arc-shaped pipe plates with peaks and valleys.

7. The large-span steel corrugated pipe structure channel with curved corrugated plates according to claim 1, characterized in that: The bottom of the corrugated steel pipe is filled with earth to form a horizontal roadbed.

8. The large-span steel corrugated pipe structure channel with curved corrugated plates according to claim 1, characterized in that: The end surface of the corrugated steel pipe is a circular, elliptical, tubular arch or pear-shaped structure.

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