Large-span steel corrugated pipe structure channel with longitudinal adjustable support

Abstract

The large-span steel corrugated pipe structure channel with the longitudinal adjustable support comprises a corrugated steel pipeline, an adjustable supporting structure is arranged in the longitudinal center of the corrugated steel pipeline, and the adjustable supporting structure comprises a bottom connecting base, a plurality of stand columns, a top restraining piece, an elastic piece and a top fixing piece. The bottom connecting base is fixed to the bottom of the corrugated steel pipeline in the extending direction of the corrugated steel pipeline, the stand columns are arranged at the upper end of the bottom connecting base at intervals, the top restraining pieces are arranged at the upper ends of the stand columns, the top fixing pieces are movably arranged in the top restraining pieces, and the elastic pieces are arranged between the top fixing pieces and the top restraining pieces. The channel structure integrates the advantages of a rigid structure and a flexible structure, and is suitable for being used in occasions with large span and large load passing through the upper portion of top waste.

Description

Technical Field

[0001] The utility model relates to the technical field of slope protection, in particular to a large-span steel corrugated pipe structure channel with longitudinal adjustable supports. 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. Therefore, the comprehensive utilization and reduction of tailings have become an important issue for the sustainable development of the mining industry.

[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 longitudinal adjustable support 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 longitudinal adjustable support comprises a corrugated steel pipe, an adjustable support structure is arranged along the longitudinal center of the corrugated steel pipe, and the adjustable support structure comprises a bottom connecting seat, a plurality of columns, a top restraint, an elastic member and a top fixing member; the bottom connecting seat is fixed to the bottom of the corrugated steel pipe along the extension direction of the corrugated steel pipe, a plurality of the columns are arranged at intervals at the upper end of the bottom connecting seat, a plurality of the columns are arranged at the upper ends of the top restraints, the top fixing member is movably arranged in the top restraint member, and an elastic member is arranged between the top fixing member and the top restraint member.

[0010] Furthermore, the bottom connecting seat is a lower long straight I-beam, the lower wing plate of the lower long straight I-beam is fixed to the bottom of the corrugated steel pipe, and the upper wing plate of the lower long straight I-beam is vertically connected to several of the columns.

[0011] Furthermore, the top restraining member is a long straight channel steel, the bottom plate of the long straight channel steel is connected to the plurality of columns, and the two side plates of the long straight channel steel constitute the horizontal limiting structure of the elastic member and the top fixing member.

[0012] Furthermore, the top fixing member is an upper long straight I-beam, the lower wing plate of the upper long straight I-beam is located in the long straight channel steel, and the upper wing plate of the upper long straight I-beam is connected to the top of the corrugated steel pipe; the elastic member is arranged between the lower wing plate of the upper long straight I-beam and the bottom plate of the long straight channel steel.

[0013] Furthermore, the elastic member is a rubber deformation block.

[0014] Furthermore, the elastic member is a spring assembly.

[0015] Furthermore, a plurality of limiting through holes are opened on the bottom plate of the long straight channel steel, and a plurality of limiting columns are downwardly arranged on the lower wing plate of the upper long straight I-beam, and the limiting columns are penetrated in the limiting through holes.

[0016] Furthermore, the corrugated steel pipe is formed into a ring by overlapping a plurality of arc-shaped corrugated steel plates at their peaks and valleys.

[0017] Furthermore, the bottom of the corrugated steel pipe is filled with earth to form a horizontal roadbed.

[0018] Furthermore, a plurality of groups of adjustable support structures are arranged at intervals in the corrugated steel pipe.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The channel structure of the utility model adopts corrugated steel pipe as the main body, and the corrugated steel pipe itself has strong mechanical properties and cost advantages; at the same time, the utility model provides support and elastic buffering for the channel by arranging a longitudinally adjustable support structure in the channel, and forms an elastic space between the top fixing part and the top restraining part through the elastic part, thereby buffering the sudden load and vibration of the channel; adapting to the settlement and deformation of slag in the tailings dump, increasing the stability of sudden load changes on the top of the channel, and reducing the possibility of stress concentration and damage; the channel structure of the utility model takes into account the advantages of rigid structure and flexible structure, and is suitable for use in occasions with large spans and large loads on the top of top waste.

[0021] The embodiment of the utility model realizes the horizontal limitation of the channel through the limiting perforation and the limiting column, prevents the top fixing part from being separated from the top restraining part, and ensures the stability of its operation.

[0022] The channel structure of the utility model is convenient to construct, low in cost and simple to maintain. The corrugated steel pipe can be overlapped into a ring by stacking several arc-shaped corrugated steel plates peak to valley, without the need for large-scale mechanical equipment and complex processes, with a short construction period, saving manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a large-span steel bellows structural channel with longitudinally adjustable support in Example 1 of the utility model;

[0024] Figure 2 yes Figure 1 Schematic diagram of the end face;

[0025] Figure 3 yes Figure 2 AA side section view;

[0026] Figure 4 yes Figure 2 BB side section view;

[0027] Figure 5 yes Figure 2 A local enlarged schematic diagram of point C;

[0028] Figure 6 This is a schematic diagram of the construction structure of Embodiment 1 of the utility model;

[0029] In the figure, 1-corrugated steel pipe;

[0030] 2-support structure, 201-bottom connecting seat, 202-column, 203-top restraining member, 204-elastic member, 205-top fixing member, 206-limiting column;

[0031] 3- Roadbed. DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Embodiment 1:

[0036] A large-span steel corrugated pipe structure channel with longitudinal adjustable support is used for the construction of a channel in a tailings dump. Figure 1-Figure 5 As shown, where:

[0037] The diameter of the corrugated steel pipe 1 is 6m and the length is 120m. It is formed by overlapping a number of arc-shaped corrugated steel plates with peaks and valleys, and then lapped into a ring. The thickness of the corrugated steel plate is 5mm, and the material is Q345B steel. The corrugated steel plate 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 pipeline, and can also provide a certain elasticity and deformability, so that the pipeline can adapt to the settlement and deformation of the tailings dump, and reduce the possibility of stress concentration and damage; in this embodiment, the overlapping method of the corrugated steel plate adopts peak-to-valley butt joint, and is connected by bolts or welding to ensure the sealing and integrity of the pipeline.

[0038] The adjustable support structure 2 is a structure used to enhance the compression and deformation resistance of the corrugated steel pipe 1. It can be appropriately adjusted according to the settlement and deformation of the corrugated steel pipe 1. The adjustable support structure 2 is arranged along the longitudinal center of the corrugated steel pipe. In this embodiment, there are several groups of adjustable support structures 2, and there is a distance between adjacent adjustable support structures 2; each group of adjustable support structures 2 includes a bottom connecting seat 201, two columns 202, a top restraint 203, an elastic member 204 and a top fixing member 205.

[0039] The bottom connection seat 201 is the basic part of the adjustable support structure, and its function is to transfer the load and deformation of the channel to the bottom of the corrugated steel pipe 1, and also provide a stable support point for the column 202. In this embodiment, the structure of the bottom connection seat 201 is a lower long straight I-beam, which is an I-shaped steel structure with high strength, high rigidity and good welding performance, and is suitable for structures that withstand bending and shearing; specifically, the length of each section of the lower long straight I-beam is 6m; the lower wing plate of the lower long straight I-beam is fixed to the bottom of the corrugated steel pipe 1, and is fixed by bolts or welding to form a firm connection to prevent the sliding and displacement of the bottom connection seat; the upper wing plate of the lower long straight I-beam is vertically connected to two columns 202, and is fixed by bolts or welding to form a vertical double-stage support rod structure to withstand the pressure and deformation of the upper waste.

[0040] The column 202 is the main part of the adjustable support structure 2, and its function is to transfer the load and deformation of the upper part of the channel from the top fixing member 205 to the bottom connecting seat 201, and also provide a stable support point for the elastic member 204. In this embodiment, the structure of the column 202 is a square steel pipe, which is a hollow square cross-section steel pipe with high strength, high rigidity and good welding performance, and is suitable for structures that withstand compression and bending; the height of the square steel pipe is slightly less than 6m, which matches the height of the corrugated steel pipe 1; the material of the square steel pipe is Q345B steel, which has high strength, high toughness and good low-temperature toughness, and is suitable for structures that withstand high pressure and deformation; each adjustable support structure is provided with two columns 202, which are respectively located at the two ends of the lower long straight I-beam, forming a parallel double-stage support rod structure, which evenly withstands the pressure and deformation of the upper waste; the upper and lower ends of the column 202 are respectively connected to the bottom connecting seat and the top constraint, and a vertical support system is formed by bolts or welding.

[0041] In this embodiment, the structure of the top restraint 203 is a long straight channel steel, which is a channel-shaped steel structure with high strength, high rigidity and good welding performance, and is suitable for structures that withstand bending and shearing; the length of the long straight channel steel is 6m, which is the same as the length of the bottom connecting seat 201; the bottom plate of the long straight channel steel is connected to two columns, and a rigid support structure is formed by bolts or welding to improve the bending resistance and stability of the corrugated steel pipe; the two side plates of the long straight channel steel constitute the elastic member 204 accommodating space and the horizontal limiting structure of the top fixing member 205; further, in this embodiment, by opening a limiting perforation on the bottom plate of the long straight channel steel, a double horizontal limiting of the top fixing member 205 is achieved, that is, the limiting of the long straight channel steel and the limiting of the limiting column 206, thereby preventing the top fixing member 205 from detaching from the top restraint 203 and ensuring the horizontal limiting of the longitudinal adjustable support.

[0042] In this embodiment, the structure of the top fixing member 205 is an upper long straight I-beam, which is an I-shaped steel structure with high strength, high rigidity and good welding performance, and is suitable for structures that withstand bending and shear; the length of the upper long straight I-beam is 6m, which is the same as the length of the bottom connecting seat 201; the lower wing plate of the upper long straight I-beam is located in the long straight channel steel to prevent the top fixing member 205 from detaching from the top restraint member 203; the upper wing plate of the upper long straight I-beam is connected to the top of the corrugated steel pipe 1 and fixed by bolts or welding.

[0043] An elastic member 204 is arranged in the accommodating space formed by the lower wing plate of the top fixing member 205 and the bottom plate of the top restraint member 203. In the present embodiment, the structure of the elastic member 204 is a rubber deformation block, which is a square or rectangular block made of rubber material, which can produce a certain deformation under the action of external force, thereby playing a buffering role; in the present embodiment, the elastic member 204 is preferably made of EPDM rubber, which matches the size of the top fixing member 205 and the top restraint member 203. In the present embodiment, there are a total of eight rubber deformation blocks arranged between each group of longitudinally adjustable supported top fixing members and top restraint members, which can produce stronger support, thereby buffering the larger stress and deformation at the top of the channel; in other embodiments, other numbers of rubber deformation blocks can also be arranged to achieve different deformation effects.

[0044] In this embodiment, four limiting perforations are opened on the bottom plate of the top restraint 203 (long straight channel steel), which are distributed in pairs at both ends of the long straight channel steel. The diameter of the limiting perforations is 50 mm, and the four limiting perforations correspond to the positions of four limiting columns respectively. Correspondingly, four limiting columns are arranged downward on the lower wing plate of the top fixing member 205 (long straight I-beam), which are distributed in pairs at both ends of the long straight I-beam. The diameter of the limiting column 206 is 40 mm and the length is 100 mm, which are respectively penetrated in the limiting perforations.

[0045] The construction method of the large-span steel corrugated pipe structure channel with longitudinal adjustable support in this embodiment is briefly described as follows:

[0046] Clean the stacking site surface, then dig a ditch at the planned channel location, set up the corrugated pipe structure channel of the utility model, then fill the roadbed 3 in the corrugated pipe structure channel, form a horizontal road surface at the upper end, and fill the lower structure with longitudinal adjustable support in the roadbed 3, see Figure 6 .

[0047] As the tailings waste is piled up, the corrugated steel pipe 1 of this embodiment is gradually buried (except for the passage openings at both ends), and a passage is formed in the corrugated steel pipe 1, through which vehicles and people can pass.

[0048] The waste of tailings is further piled up to bury the corrugated steel pipe 1 of this embodiment as a whole (except for the passage openings at both ends), and the waste covering the upper part of the corrugated steel pipe 1 can be leveled to form an upper passage for vehicles and personnel to pass through.

[0049] When a vehicle passes through the upper part, the adjustable support structure can provide support for the entire channel, and at the same time, it provides a certain amount of deformation. When the corrugated steel pipe is subjected to pressure and deformation from the upper waste or the passing vehicle, the elastic member can produce corresponding deformation, thereby buffering the overall stress and deformation of the corrugated steel pipe 1; after the load disappears, the elastic member rebounds and recovers the deformation. This channel structure takes into account the advantages of rigid support and flexible deformation, thereby buffering the sudden load and vibration of the channel, and is suitable for use in occasions with large spans and large loads passing through the upper part of the top waste.

[0050] Embodiment 2:

[0051] This embodiment provides an elastic support device composed of round steel and spring group, which can be used to absorb vibration and impact and improve stability and safety. Different from embodiment 1, the column of embodiment 2 is made of round steel. In addition, the elastic member of embodiment 2 is composed of a spring group, which is composed of a plurality of compression springs, has a high elastic limit, fatigue limit and impact toughness, and the number and arrangement of the springs can be adjusted according to the size and direction of the load to achieve the best elastic effect.

[0052] 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 long-span steel corrugated pipe structural channel with longitudinally adjustable supports, characterized in that: It comprises a corrugated steel pipe, and an adjustable supporting structure is arranged along the longitudinal center of the corrugated steel pipe, and the adjustable supporting structure comprises a bottom connecting seat, a plurality of columns, a top restraint, an elastic member and a top fixing member; the bottom connecting seat is fixed to the bottom of the corrugated steel pipe along the extension direction of the corrugated steel pipe, a plurality of columns are arranged at intervals at the upper end of the bottom connecting seat, a plurality of top restraints are arranged at the upper ends of the columns, the top fixing member is movably arranged in the top restraint member, and an elastic member is arranged between the top fixing member and the top restraint member.

2. The long-span steel corrugated pipe structural channel with longitudinally adjustable support according to claim 1 is characterized in that: The bottom connecting seat is a lower long straight I-beam, the lower wing plate of the lower long straight I-beam is fixed on the bottom of the corrugated steel pipe, and the upper wing plate of the lower long straight I-beam is vertically connected to a plurality of the columns.

3. The long-span steel corrugated pipe structural channel with longitudinally adjustable support according to claim 1 is characterized in that: The top restraining member is a long straight channel steel, the bottom plate of which is connected to a plurality of the columns, and the two side plates of which constitute the horizontal limiting structure of the elastic member and the top fixing member.

4. The long-span steel corrugated pipe structural channel with longitudinally adjustable support according to claim 3 is characterized in that: The top fixing member is an upper long straight I-beam, the lower wing plate of the upper long straight I-beam is located in the long straight channel steel, and the upper wing plate of the upper long straight I-beam is connected to the top of the corrugated steel pipe; the elastic member is arranged between the lower wing plate of the upper long straight I-beam and the bottom plate of the long straight channel steel.

5. The long-span steel corrugated pipe structural channel with longitudinally adjustable support according to claim 1, characterized in that: The elastic member is a rubber deformation block.

6. The long-span steel corrugated pipe structural channel with longitudinally adjustable support according to claim 1, characterized in that: The elastic member is a spring assembly.

7. The long-span steel corrugated pipe structural channel with longitudinally adjustable support according to claim 4, characterized in that: A plurality of limiting through holes are provided on the bottom plate of the long straight channel steel, and a plurality of limiting columns are downwardly arranged on the lower wing plate of the upper long straight I-beam, and the limiting columns are penetrated in the limiting through holes.

8. The long-span steel corrugated pipe structural channel with longitudinally adjustable support according to claim 1, characterized in that: The corrugated steel pipe is formed into a ring by overlapping a plurality of arc-shaped corrugated steel plates with peaks and valleys.

9. The long-span steel corrugated pipe structural channel with longitudinally adjustable support according to claim 1, characterized in that: The bottom of the corrugated steel pipe is filled with earth to form a horizontal roadbed.

10. The long-span steel corrugated pipe structural channel with longitudinally adjustable support according to claim 1, characterized in that: A plurality of groups of adjustable support structures are arranged at intervals in the corrugated steel pipe.

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