Prefabricated buffer decompression shed tunnel

Abstract

The utility model belongs to road traffic safety protection equipment technical field discloses an assembly type buffer pressure reduction shed hole, wherein: including at least two steel shed sections of longitudinal arrangement, this steel shed section includes shed hole support section steel, the top plate on the top of shed hole support section steel is fixed a plurality of steel corrugated board, a plurality of steel corrugated board and the top plate integrative steel corrugated board layer is provided with the buffer layer made of flexible buffer material with its integral on the outer wall of steel corrugated board layer, the connecting place of adjacent two steel shed sections is provided with the settlement joint, and the bottom plate of shed hole support section steel bottom is fixed through bolt in the top of high -strength impact force buffer mechanism. The utility model due to the structure, the rockfall impact force is effectively buffered in quick installation, shortens the construction time and reduces the road traffic risk.

Description

Technical Field

[0001] This utility model belongs to the technical field of road traffic safety protection equipment, and provides a prefabricated buffer and pressure relief tunnel that can be installed quickly, effectively buffer the impact of falling rocks, shorten construction time and reduce road traffic risks. Background Technology

[0002] In recent years, road landslides have occurred frequently. Road slopes, influenced by factors such as river erosion, groundwater activity, rainwater soaking, earthquakes, and artificial slope cutting, slide downhill along certain weak surfaces or zones under the influence of gravity, either entirely or in parts, severely impacting road safety. Road landslides are often both accidental and predictable, necessitating the implementation of protective measures within a short period to reduce the risk to traffic.

[0003] In areas prone to rockfalls or landslides, reinforced concrete tunnels are traditionally constructed to protect vehicles and pedestrians. However, traditional reinforced concrete tunnel structures are relatively heavy and rely on their own rigidity and strength to resist the impact of falling rocks. Moreover, the construction period is long, making it difficult to complete road protection in a short time.

[0004] Chinese Patent 2020101244329 discloses a steel-UHPC composite rockfall protection tunnel for railway bridges and its construction method. This design reduces the overall weight to some extent, and its main components can be repaired or replaced after being damaged by falling rocks, making it easy to maintain and replace. However, during use, its ability to buffer the impact of falling rocks is limited, it cannot be quickly installed or removed, and the construction time is long. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a prefabricated buffer and pressure relief tunnel that can be installed quickly, effectively buffer the impact of falling rocks, shorten construction time and reduce road traffic risks.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a prefabricated buffer and pressure relief shed, comprising at least two longitudinally arranged steel shed segments, each steel shed segment including a shed support steel section, multiple corrugated steel plates fixed to the top plate of the shed support steel section, the multiple corrugated steel plates and the top plate forming a corrugated steel plate layer, and a buffer layer made of flexible buffer material integrally formed therewith on the outer wall of the corrugated steel plate layer; a settlement joint is provided at the connection between two adjacent steel shed segments, and the bottom plate of the shed support steel section is fixed to the top of the high-strength impact buffer mechanism by bolts;

[0008] In use, the bottom of the high-strength impact buffer mechanism is fixed to the existing road surface by anchor bolts.

[0009] To make the high-strength impact buffer mechanism simple in structure, easy to manufacture and convenient to install and disassemble, the above scheme further includes: the high-strength impact buffer mechanism includes a positioning plate a, at least two positioning plates b evenly distributed on the top plate surface of the positioning plate a, and a column steel pipe a located on the top plate surface of the positioning plate a, wherein the outer wall surface of the positioning plate b is close to the inner wall of the column steel pipe a.

[0010] A column steel pipe b is installed inside the column steel pipe a. The outer diameter of the column steel pipe b is smaller than the inner diameter of the column steel pipe a. The inner cavity of the column steel pipe b is filled with C micro-expansion concrete. The top end of the column steel pipe b is welded to the steel longitudinal beam as a whole. The steel longitudinal beam is fixed to the base plate by bolts. At least one set of springs is installed between the bottom end of the column steel pipe b and the top surface of the positioning plate a. The springs are located in the inner cavity of the column steel pipe a. The bottom surface of the positioning plate a is fixed to the steel ground beam by bolts.

[0011] In use, the steel ground beam is fixed to the existing road surface by anchor bolts.

[0012] To further improve the impact buffering performance, the above scheme further includes: a reinforcing plate integrally formed with the outer wall of the column steel pipe a.

[0013] To ensure balanced pressure, in the above scheme, the two ends of the spring are further fixed to the spring seat.

[0014] To facilitate the installation of the corrugated steel plate, the above scheme further includes: a circumferential flange and a longitudinal flange fixed on the corrugated steel plate; the longitudinal flange is fixed to the top plate of the shed support steel section by bolts; and the circumferential flange is fixed to the vertical plate of the shed support steel section by bolts.

[0015] To extend the service life of the corrugated steel sheet, the above-mentioned solution further includes: the corrugated steel sheet is made of Q355B hot-rolled steel sheet, the surface is hot-dip galvanized, the zinc coating amount is not less than 600g / m², and the average thickness is not less than 84μm.

[0016] To further improve the load-bearing capacity, in the above scheme, the supporting steel for the shed is further: the steel is arc-shaped.

[0017] The beneficial effects of this utility model are:

[0018] (1) The prefabricated buffer pressure relief shed is segmented, including at least two steel shed segments arranged longitudinally, and settlement joints are provided at the connection between two adjacent steel shed segments, which improves the adaptability and durability of the structure and reduces the risk of structural damage caused by foundation settlement.

[0019] (2) The entire structure adopts steel structure prefabricated construction. The components are connected by bolts, which makes on-site splicing convenient and can be completed in a short time.

[0020] (3) The high-strength impact buffer mechanism is set up to dissipate the energy generated by the impact of falling rocks through the elastic deformation of the spring, which effectively reduces the impact force on the structure itself and protects the safety of the tunnel structure.

[0021] (4) The corrugated steel plate layer, which is formed by multiple corrugated steel plates and the top plate of the supporting steel of the shed, not only ensures the strength of the shed roof, but also reduces the structural weight, realizing lightweight design, while ensuring the load-bearing capacity and stability of the shed roof.

[0022] (5) The buffer layer located outside the corrugated steel plate layer further absorbs and disperses the impact force of falling rocks, enhances the buffer performance of the shed, and improves the ability to resist the impact force of falling rocks and other forces.

[0023] In summary, due to the aforementioned structure, this utility model achieves rapid installation, effectively buffers the impact of falling rocks, shortens construction time, and reduces road traffic risks. Attached Figure Description

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0025] Figure 1 This is a partial cross-sectional view of the structure in the longitudinal direction of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure at the transverse section of the present invention;

[0027] Figure 3 This is a schematic diagram of the connection between the corrugated steel plate and the supporting steel of the shed opening according to the present invention;

[0028] Figure 4 for Figure 3 Enlarged side view of the structure at point E;

[0029] Figure 5 for Figure 4 Schematic diagram of the AA-direction structure;

[0030] Figure 6 This is a schematic diagram of the high-strength impact buffer mechanism of the present invention;

[0031] Figure 7 for Figure 6 Schematic diagram of the BB-oriented structure;

[0032] Figure 8This is a schematic diagram of the structure of the spring replacement point using a jack in this invention.

[0033] Reference numerals: 1. Steel shed segment; 2. Supporting steel for the shed opening; 3. Top plate; 4. Corrugated steel plate; 5. Buffer layer; 6. Settlement joint; 7. Bottom plate; 8. High-strength impact buffer mechanism; 9. Anchor bolts; 10. Existing road surface; 11. Vertical plate; 12. Jack; 401. Circumferential flange; 402. Longitudinal flange; 801. Positioning plate a; 802. Positioning plate b; 803. Column steel pipe a; 804. Column steel pipe b; 805. C30 micro-expansion concrete; 806. Steel longitudinal beam; 807. Spring; 808. Steel ground beam; 809. Reinforcing plate; 810. Spring seat; 41. Corrugated steel plate layer. Detailed Implementation

[0034] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0036] like Figures 1-8 As shown, this utility model provides a prefabricated buffer and pressure relief shed, which includes at least two longitudinally arranged steel shed segments 1. Each steel shed segment 1 includes a shed support steel 2 and multiple corrugated steel plates 4 fixed on a top plate 3 at the top of the shed support steel 2. The multiple corrugated steel plates 4 and the top plate 3 form a corrugated steel plate layer 41. A buffer layer 5 made of flexible buffer material is provided on the outer wall of the corrugated steel plate layer 41. A settlement joint 6 is provided at the connection between two adjacent steel shed segments 1. The bottom plate 7 at the bottom of the shed support steel 2 is fixed to the top of a high-strength impact buffer mechanism 8 by bolts.

[0037] In use, the bottom of the high-strength impact buffer mechanism 8 is fixed to the existing road surface 10 by anchor bolts 9. In this embodiment, the longitudinal length of the steel shed segment 1 is 11.412m, and the settlement joint 6 is 2cm. The shed support steel 2 is H-shaped, that is, it includes a top plate 3 and a bottom plate 7 that are integral with the top and bottom surfaces of the vertical plate 11, respectively.

[0038] To make the high-strength impact buffer mechanism 8 simple in structure, easy to manufacture and convenient to install and disassemble, in the above embodiment, preferably: the high-strength impact buffer mechanism 8 includes a positioning plate a801, at least two positioning plates b802 evenly distributed on the top plate surface of the positioning plate a801, and a column steel pipe a803 located on the top plate surface of the positioning plate a801, wherein the outer wall surface of the positioning plate b802 is close to the inner side wall of the column steel pipe a803;

[0039] A column steel pipe b804 is installed inside the column steel pipe a803. The outer diameter of the column steel pipe b804 is smaller than the inner diameter of the column steel pipe a803. The inner cavity of the column steel pipe b804 is filled with C30 micro-expansion concrete 805. The top end of the column steel pipe b804 is welded to the steel longitudinal beam 806 as a whole. The steel longitudinal beam 806 is fixed to the base plate 7 by bolts. At least one set of springs 807 is installed between the bottom end of the column steel pipe b804 and the top surface of the positioning plate a801. The springs 807 are located in the inner cavity of the column steel pipe a803. The bottom surface of the positioning plate a801 is fixed to the steel ground beam 808 by bolts.

[0040] In use, the steel ground beam 808 is fixed to the existing road surface 10 by anchor bolts 9. In this embodiment, there are three springs 807 in the column steel pipe a803.

[0041] To further improve the impact buffering performance, in the above embodiment, preferably, a reinforcing plate 809 integrally formed with the outer wall of the column steel pipe a803 is provided.

[0042] To ensure balanced pressure distribution, in the above embodiment, preferably, both ends of the spring 807 are fixed to the spring seat 810. In this embodiment, the spring 807 has a total of 6 coils, an effective number of coils, a spring diameter of φ80mm, and is heat-treated at HRC45-50.

[0043] To facilitate the installation of the corrugated steel plate 4, in the above embodiment, preferably: a circumferential flange 401 and a longitudinal flange 402 are fixed on the corrugated steel plate 4. The longitudinal flange 402 is fixed to the top plate 3 of the top of the shed support steel 2 by bolts, and the circumferential flange 401 is fixed to the vertical plate 11 of the shed support steel 2 by bolts.

[0044] To extend the service life of the corrugated steel plate 4, in the above embodiments, preferably, the corrugated steel plate 4 is made of Q355B hot-rolled steel plate, the surface is hot-dip galvanized, the zinc coating amount is not less than 600g / m², and the average thickness is not less than 84μm.

[0045] To further improve load-bearing capacity, in the above embodiments, preferably, the supporting steel 2 for the shed opening is arc-shaped.

[0046] In all the above embodiments, the components are commercially available products. Unless otherwise specified, the construction methods can be carried out using conventional construction techniques in the field.

[0047] The process of using the above scheme is as follows:

[0048] The first step is to manufacture the components for the prefabricated buffer and pressure-reducing shed.

[0049] The components of the prefabricated buffer and pressure relief shed are manufactured in the factory. The components include independent shed support steel 2, corrugated steel plate 4, buffer layer 5, bolts, high-strength impact buffer mechanism 8, and anchor bolts 9.

[0050] The components of the high-strength impact buffer mechanism 8 are prefabricated in the factory. The components of the high-strength impact buffer mechanism 8 include a positioning plate b802 integrated with the positioning plate a801, a column steel pipe a803, a column steel pipe b804, a steel longitudinal beam 806, a spring 807, and a steel ground beam 808.

[0051] The second step is to transfer the components of the prefabricated buffer and pressure relief shed mentioned in the first step to the disaster relief area.

[0052] The third step is to construct prefabricated buffer and pressure-reducing shelters in the disaster relief area.

[0053] Position and install steel ground beam 808.

[0054] After drilling holes in the existing road surface 10 in the disaster relief area, anchor bolts 9 are driven in. The top of the anchor bolts 9 is passed through the bolt holes on the steel ground beam 808 and the steel ground beam 808 is fixed to the existing road surface 10 by tightening the lock nut.

[0055] Install a high-strength impact buffer mechanism 8.

[0056] Fix the positioning plate a801 to the steel ground beam 808 with bolts, then snap the column steel pipe a803 onto the positioning plate b802, and then place a set of springs 807 inside the column steel pipe a803.

[0057] Next, the worker inserts the column steel pipe b804, which is filled with C30 micro-expansion concrete 805, into the inner cavity of the column steel pipe a803, so that the lower end of the column steel pipe b804 is pressed against the top of the spring 807. Then, the steel longitudinal beam 806 is welded to the top of the column steel pipe b804.

[0058] Next, the supporting steel section 2 of the shed opening is fixed to the steel longitudinal beam 806 using bolts;

[0059] Construct corrugated steel sheet layer 41.

[0060] Multiple corrugated steel plates 4 are connected to the shed support steel 2 with bolts to form an arched steel shed roof. Then, at the arch foot, they are connected to the steel longitudinal beam 3 with bolts, so that the multiple corrugated steel plates 4 and the steel longitudinal beam 3 form a corrugated steel plate layer 41.

[0061] Install buffer layer 5 to form steel canopy segment 1.

[0062] A buffer layer 5 made of flexible buffer material is installed on the outer wall of the corrugated steel plate layer 41 to form a steel canopy segment 1.

[0063] The fourth step is to assemble at least two steel shed segments 1 to form a prefabricated buffer and pressure-reducing shed.

[0064] Repeat the steps described in step 3 to build the required number of steel shed segments 1. Settlement joints 6 are provided at the connection between two adjacent steel shed segments 1. Assemble the required number of steel shed segments 1 to form a prefabricated buffer pressure relief shed.

[0065] The fifth step is to clear the construction waste and restore traffic flow.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A prefabricated buffer and pressure relief shed, characterized in that: The structure includes at least two longitudinally arranged steel shed segments (1), each steel shed segment (1) including a shed support steel section (2), and multiple corrugated steel plates (4) fixed on a top plate (3) at the top of the shed support steel section (2). The multiple corrugated steel plates (4) and the top plate (3) together form a corrugated steel plate layer (41). A buffer layer (5) made of flexible buffer material is provided on the outer wall of the corrugated steel plate layer (41). A settlement joint (6) is provided at the connection between two adjacent steel shed segments (1). The bottom plate (7) at the bottom of the shed support steel section (2) is fixed to the top of a high-strength impact buffer mechanism (8) by bolts. In use, the bottom of the high-strength impact buffer mechanism (8) is fixed to the existing road surface (10) by anchor bolts (9).

2. The prefabricated buffer and pressure relief shed according to claim 1, characterized in that: The high-strength impact buffer mechanism (8) includes a positioning plate a (801), at least two positioning plates b (802) evenly distributed on the top plate surface of the positioning plate a (801), and a column steel pipe a (803) located on the top plate surface of the positioning plate a (801). The outer wall surface of the positioning plate b (802) is close to the inner wall of the column steel pipe a (803). The column steel pipe a (803) is provided with a column steel pipe b (804), the outer diameter of which is smaller than the inner diameter of the column steel pipe a (803). The inner cavity of the column steel pipe b (804) is filled with C30 micro-expansion concrete (805). The top of the column steel pipe b (804) is welded to the steel longitudinal beam (806) as a whole. The steel longitudinal beam (806) is fixed to the base plate (7) by bolts. At least one set of springs (807) is provided between the bottom end of the column steel pipe b (804) and the top surface of the positioning plate a (801). The springs (807) are located in the inner cavity of the column steel pipe a (803). The bottom surface of the positioning plate a (801) is fixed to the steel ground beam (808) by bolts. When in use, the steel ground beam (808) is fixed to the existing road surface (10) by anchor bolts (9).

3. The prefabricated buffer and pressure relief shed according to claim 2, characterized in that: The outer wall of the column steel pipe a (803) is provided with a reinforcing plate (809) integrated with it.

4. The prefabricated buffer and pressure relief shed according to claim 2, characterized in that: The two ends of the spring (807) are fixed on the spring seat (810).

5. The prefabricated buffer and pressure relief shed according to claim 1, characterized in that: The corrugated steel plate (4) is fixed with a circumferential flange (401) and a longitudinal flange (402). The longitudinal flange (402) is fixed to the top plate (3) of the top of the shed support steel (2) by bolts, and the circumferential flange (401) is fixed to the vertical plate (11) of the shed support steel (2) by bolts.

6. The prefabricated buffer and pressure relief shed according to claim 1, characterized in that: The corrugated steel plate (4) is made of Q355B hot-rolled steel plate, with hot-dip galvanized surface, zinc coating amount not less than 600g / m², and average thickness not less than 84μm.

7. The prefabricated buffer and pressure relief shed according to claim 1, characterized in that: The supporting steel (2) for the shed is arc-shaped.

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