Method for emergency rescue and disaster relief by using assembled buffer decompression shed tunnel

Abstract

The invention belongs to the technical field of road traffic safety protection construction, and discloses an emergency rescue and disaster relief method using an assembly type buffering and pressure reducing shed tunnel. The method sequentially comprises the steps that parts of the assembly type buffering and pressure-reducing shed tunnel are prepared, the parts are transferred to an area to be subjected to emergency rescue and disaster relief, the assembly type buffering and pressure-reducing shed tunnel is built in the area to be subjected to emergency rescue and disaster relief, at least two steel shed sections are assembled to form the assembly type buffering and pressure-reducing shed tunnel, and passage recovery is achieved after construction waste is removed. According to the method, rapid rescue and disaster relief are achieved, the impact force of falling rocks is effectively buffered, the construction time is shortened, and the road passing risk is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of road traffic safety protection construction, and provides a method for emergency rescue and disaster relief using an assembled buffering and decompression shed tunnel, which can quickly carry out emergency rescue and disaster relief, effectively buffer the impact force of falling rocks, shorten construction time and reduce road traffic risks. Background Art

[0002] In recent years, road landslides have become a common occurrence. Under the influence of factors such as river erosion, groundwater flow, rainwater infiltration, earthquakes, and artificial slope cutting, road slopes, under the action of gravity, slide downhill along certain weak surfaces or weak zones, either as a whole or in a scattered manner, seriously affecting road safety. Road landslides are often both accidental and predictable, necessitating the implementation of specific road protection measures within a short period of time to reduce road traffic risks.

[0003] Traditionally, reinforced concrete tunnels are constructed to protect vehicles and pedestrians on roads prone to rockfall or landslides. However, these structures are relatively heavy, relying on their rigidity and strength to withstand the impact of falling rocks. Construction is also long, making it difficult to quickly protect roads.

[0004] Chinese Patent No. 2020101244329 discloses a steel-UHPC composite rockfall protection shed tunnel for railway bridges and its construction method. This reduces overall weight to a certain extent, and its main components can be repaired or replaced locally after being damaged by rockfall impact, thus ensuring normal service and ease of maintenance and replacement. However, during use, its ability to cushion rockfall impact is limited, making rapid assembly and disassembly impossible and requiring a long construction time. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a method for disaster relief using an assembled buffering and decompression shed tunnel, which can quickly carry out disaster relief, effectively buffer the impact of falling rocks, shorten construction time and reduce road traffic risks.

[0006] To achieve the above object, the present invention provides the following technical solutions: The present invention provides a method for emergency rescue using an assembled buffer pressure relief shed, which comprises the following steps: The first step is to prepare the components of the assembled buffer decompression shed. Prefabricate the components of the assembled buffer and pressure relief shed in a factory, including independent shed support steel, steel corrugated plates, buffer layers, bolts, high-strength impact buffer mechanisms, and anchor bolts; Prefabricating components of a high-strength impact buffer mechanism in a factory, the components of the high-strength impact buffer mechanism include a positioning plate b integrated with a positioning plate a, a column steel pipe a, a column steel pipe b, a steel longitudinal beam, a spring, and a steel ground beam; The second step is to transport the components of the buffer pressure relief shed described in the first step to the area to be rescued; The third step is to build a prefabricated buffer pressure relief shed in the area to be rescued and rescued. Positioning and installing steel ground beams, After drilling holes on the existing road surface in the disaster relief area, insert anchor bolts, pass the top ends of the anchor bolts through the bolt holes on the steel ground beams, and then fix the steel ground beams to the existing road surface with locking nuts; Install high-strength impact buffer mechanism, Fix the positioning plate a to the steel ground beam with bolts, then clamp the column steel pipe a to the positioning plate b, and then place a set of springs in the inner cavity of the column steel pipe a; Then the workers installed the column steel pipe b filled with C micro-expansive concrete into the inner cavity of the column steel pipe a, so that the lower end of the column steel pipe b was pressed tightly against the top of the spring, and then welded the steel longitudinal beam to the top of the column steel pipe b; Next, fix the shed hole support steel to the steel longitudinal beam with bolts; Build the steel corrugated sheet layer, Connect multiple steel corrugated plates with the shed hole support steel by bolts to form an arched steel roof, and then connect them with the steel longitudinal beams by bolts at the arch foot, so that the multiple steel corrugated plates and the steel longitudinal beams are integrated into a steel corrugated plate layer; Install the buffer layer to form the steel shed segment, A buffer layer made of a flexible buffer material is installed on the outer wall of the steel corrugated plate layer to form a steel shed segment; The fourth step is to assemble at least two steel shed segments to form an assembled buffer pressure relief shed hole. Repeat the steps described in the third step to build the required number of steel shed segments, and set settlement joints at the connection between two adjacent steel shed segments. Assemble the required number of steel shed segments to form an assembled buffer pressure relief shed cave; The fifth step is to restore traffic after clearing the construction waste. In order to shorten the post-maintenance time, in the above scheme, further: after the fifth step, a sixth step is provided, post-maintenance, As time goes by, the spring in the high-strength impact buffer mechanism is damaged and access is cut off. Workers will use a jack to lift the steel longitudinal beam and the single-section steel shed segment integrated with it as a whole. After forming a hollow structure, the spring will be replaced. After the spring is replaced, the jack will be removed to restore access.

[0007] To facilitate installation of the steel corrugated plate, in the above solution, further: an annular flange and a longitudinal flange are fixed to the steel corrugated plate, the longitudinal flange is fixed to the top plate of the shed hole support steel by bolts, and the annular flange is fixed to the vertical plate of the shed hole support steel by bolts; The bottom plate of the shed hole supporting steel is fixed to the steel longitudinal beam of the high-strength impact force buffering mechanism through bolts.

[0008] The top plate is fixed to the steel longitudinal beam of the high-strength impact buffer mechanism by means of bolts.

[0009] In order to further improve the impact force buffering performance, in the above solution, further: a reinforcing plate is provided on the outer wall of the column steel pipe a.

[0010] In order to ensure pressure balance, in the above solution, further: both ends of the spring are fixed on the spring seat.

[0011] In order to extend the service life of the steel corrugated plate, in the above scheme, further: the steel corrugated plate is pressed from Q355B hot-rolled steel plate, the surface is hot-dip galvanized, the galvanizing amount is not less than 600g / m², and the average thickness is not less than 84μm.

[0012] In order to further improve the stress-bearing capacity, in the above scheme, further: the shed hole supporting steel is arc-shaped.

[0013] The beneficial effects of the present invention are: (1) The prefabricated buffer decompression shed tunnel is assembled in sections using the disaster relief method, which includes at least two steel shed sections arranged longitudinally, and settlement joints are set at the connection between the two adjacent steel shed sections, which improves the adaptability and durability of the structure and reduces the risk of structural damage caused by foundation settlement.

[0014] (2) The entire structure adopts steel structure assembly construction. The components are connected by bolts, which makes on-site splicing convenient and can be completed in a short time, realizing rapid rescue and disaster relief.

[0015] (3) The setting of high-strength impact buffering mechanism dissipates the energy generated by impact forces such as falling rocks through the elastic deformation of the spring, effectively reducing the impact force on the structure itself and protecting the safety of the shed tunnel structure.

[0016] (4) The steel corrugated plate layer, which is composed of multiple steel corrugated plates and the top plate of the shed hole supporting steel, not only ensures the strength of the shed roof, but also reduces the weight of the structure, realizes lightweight design, and at the same time ensures the bearing capacity and stability of the shed roof.

[0017] (5) The setting of the buffer layer outside the steel corrugated plate layer further absorbs and disperses the impact force of falling rocks, enhances the buffering performance of the shed hole, and improves the ability to resist the impact force of falling rocks.

[0018] In summary, due to the structure, the present invention achieves rapid disaster relief, effectively buffers the impact of falling rocks, shortens construction time and reduces road traffic risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below with reference to the accompanying drawings, in which: Figure 1 It is a schematic diagram of a partial cross-sectional structure in the longitudinal direction of the present invention; Figure 2 It is a structural schematic diagram of the transverse cross section of the present invention; Figure 3 This is a schematic structural diagram of the connection between the steel corrugated plate and the shed hole supporting steel of the present invention; Figure 4 for Figure 3 Schematic diagram of the enlarged structure of the steel corrugated plate at E in the middle; Figure 5 This is a structural diagram of the high-strength impact buffering mechanism of the present invention; Figure 6 for Figure 5 Schematic diagram of the BB structure; Figure 7 This is a structural schematic diagram of the present invention using a jack to replace the spring.

[0020] Figure numerals: 1. Steel shed segment; 2. Shed hole supporting steel; 3. Top plate; 4. Steel corrugated plate; 5. Buffer layer; 6. Settlement joint; 7. Bottom plate; 8. High-strength impact force buffer mechanism; 9. Anchor bolt; 10. Existing road pavement; 11. Vertical plate; 12. Jack; 401. Annular flange; 402. Longitudinal flange; 801. Positioning plate a; 802. Positioning plate b; 803. Column steel pipe a; 804. Column steel pipe b; 805. C30 slightly expansive concrete; 806. Steel longitudinal beam; 807. Spring; 808. Steel ground beam; 809. Reinforcement plate; 810. Spring seat; 41. Steel corrugated plate layer. DETAILED DESCRIPTION

[0021] The present invention is further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting 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 from the drawings.

[0022] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," "outside," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The present invention will be further described below in conjunction with the accompanying drawings.

[0023] like Figure 1-7 As shown, the present invention provides a method for emergency rescue using an assembled buffer pressure relief shed, which includes the following steps: The first step is to prepare the components of the assembled buffer decompression shed. The components of the assembled buffer pressure relief shed are prefabricated in the factory, and the components include independent shed support steel 2, steel corrugated plate 4, buffer layer 5, bolts, high-strength impact buffer mechanism 8, and anchor bolts 9; 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; The second step is to transport the components of the buffer pressure relief shed described in the first step to the area to be rescued; The third step is to build a prefabricated buffer pressure relief shed in the area to be rescued and rescued. Positioning and installation of steel ground beam 808, After drilling holes in the existing road surface 10 in the area to be rescued and rescued, anchor bolts 9 are driven in. The top ends of the anchor bolts 9 are passed through the bolt holes in the steel ground beam 808 and the steel ground beam 808 is fixed to the existing road surface 10 using locking nuts. Install high-strength impact buffer mechanism 8, Fix the positioning plate a801 to the steel ground beam 808 with bolts, then clamp the column steel pipe a803 to the positioning plate b802, and then place a set of springs 807 in the inner cavity of the column steel pipe a803; Then the workers installed the column steel pipe b804 filled with C30 slightly expansive concrete 805 into the inner cavity of the column steel pipe a803, so that the lower end of the column steel pipe b804 was pressed tightly against the top of the spring 807, and then welded the steel longitudinal beam 806 to the top of the column steel pipe b804; Next, fix the shed hole support steel 2 to the steel longitudinal beam 806 by bolts; Build 41 layers of corrugated steel sheets, Connect multiple steel corrugated plates 4 to the shed hole support steel 2 by bolts to form an arched steel roof, and then connect them to the steel longitudinal beams 3 by bolts at the arch foot, so that the multiple steel corrugated plates 4 and the steel longitudinal beams 3 are integrated into a steel corrugated plate layer 41; Install the buffer layer 5 to form the steel shed segment 1, A buffer layer 5 made of a flexible buffer material is installed on the outer wall of the steel corrugated plate layer 41 to form a steel shed segment 1; The fourth step is to assemble at least two steel shed segments 1 to form an assembled buffer pressure relief shed hole. Repeat the steps in the third step to build the required number of steel shed segments 1. Settle the settlement joints 6 at the connection between two adjacent steel shed segments 1. Assemble the required number of steel shed segments 1 to form an assembled buffer pressure relief shed cave. Step 5: Reopening the passageway after clearing the construction waste. In this embodiment, the longitudinal length of the steel shed segment 1 is 11.412 meters, and the settlement joint 6 is 2 cm. The shed opening support steel 2 is H-shaped, consisting of a top plate 3 and a bottom plate 7, each integrally connected to the top and bottom ends of the vertical plate 11. In this embodiment, there are three springs 807 in the column steel pipe a803. In this embodiment, the assembled buffering and decompression shed tunnel after construction includes at least two steel shed segments 1 arranged longitudinally, and the steel shed segment 1 includes a shed tunnel supporting steel 2, and a plurality of steel corrugated plates 4 fixed on the top plate 3 on the top of the shed tunnel supporting steel 2. The plurality of steel corrugated plates 4 and the top plate 3 form a steel corrugated plate layer 41 as a whole, and a buffer layer 5 made of a flexible buffer material integrated with the steel corrugated plate layer 41 is provided on the outer wall of the steel corrugated plate layer 41; a settlement joint 6 is provided at the connection between two adjacent steel shed segments 1, and the bottom plate 7 at the bottom of the shed tunnel supporting steel 2 is fixed to the top of the high-strength impact force buffering mechanism 8 by bolts. The high-strength impact force buffering mechanism 8 includes a positioning plate a801, at least two positioning plates b802 evenly distributed on the top surface of the positioning plate a801, a column steel pipe a803 located on the top surface of the positioning plate a801, and the outer wall surface of the positioning plate b802 is adjacent to the inner wall of the column steel pipe a803; a column steel pipe b804 is provided in the column steel pipe a803, and 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 steel tube b804 is filled with C30 slightly expansive concrete 805. The top of the column steel tube b804 is welded to a steel longitudinal beam 806, which is bolted to the base plate 7. At least one spring 807 is installed between the bottom end of the column steel tube b804 and the top surface of the positioning plate a801. This spring 807 is located in the inner cavity of the column steel tube a803. The bottom surface of the positioning plate a801 is bolted to the steel ground beam 808. In this embodiment, when the components of the high-strength impact buffer mechanism 8 are prefabricated in the factory, the C30 slightly expansive concrete 805 is also prefabricated along with the reinforcing plate 809 described in the following embodiment.

[0024] In order to make the high-strength impact buffer mechanism 8 simple in structure, easy to prepare and convenient to assemble and disassemble, in the above embodiment, preferably: In order to shorten the later maintenance time, in the above embodiment, preferably: after the fifth step, a sixth step is provided, which is later maintenance. As the use time goes by, the spring 807 in the high-strength impact buffer mechanism 8 is damaged and the passage is cut off. The worker will use the jack 12 to lift the steel longitudinal beam 806 and the single-section steel shed segment 1 integrated with it as a whole. After the hollow structure is formed, the spring 807 will be replaced. After the spring 807 is replaced, the jack 12 is removed to restore the passage.

[0025] To facilitate installation of the steel corrugated plate, in the above embodiment, preferably: an annular flange 401 and a longitudinal flange 402 are fixed to the steel corrugated plate 4, the longitudinal flange 402 is fixed to the top plate 3 of the top of the shed hole supporting steel 2 by bolts, and the annular flange 401 is fixed to the vertical plate 11 of the shed hole supporting steel 2 by bolts; The bottom plate 7 of the shed hole supporting steel 2 is fixed to the steel longitudinal beam 806 of the high-strength impact force buffering mechanism 8 by bolts.

[0026] The top plate 3 is fixed to the steel longitudinal beam 806 of the high-strength impact buffer mechanism 8 by bolts.

[0027] In order to further improve the impact force buffering performance, in the above embodiment, preferably: a reinforcing plate 809 is provided on the outer wall of the column steel pipe a803.

[0028] To ensure balanced pressure, in the above embodiment, preferably, both ends of the spring 807 are fixed on the spring seat 810. In this embodiment, the spring 807 has 6 turns in total, 4 effective turns, a spring diameter of φ80mm, and is heat treated to HRC45-50.

[0029] In order to extend the service life of the steel corrugated plate 4, in the above embodiment, preferably: the steel corrugated plate 4 is pressed from Q355B hot-rolled steel plate, the surface is hot-dip galvanized, the galvanizing amount is not less than 600g / m², and the average thickness is not less than 84μm.

[0030] In order to further improve the stress-bearing capacity, in the above embodiment, preferably: the shed hole supporting steel 2 is arc-shaped.

[0031] In all the above embodiments, the relevant components are conventional products sold on the market. The construction methods not specifically described can be constructed using conventional construction techniques in the art.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions, which should all be included in the scope of the claims of the present invention.

Claims

1. A method for emergency rescue using an assembled buffer pressure relief shed, characterized by: The following steps are included: The first step is to prepare the components of the assembled buffer decompression shed. Prefabricating the components of the assembled buffer pressure relief shed in a factory, the components comprising an independent shed support steel (2), a steel corrugated plate (4), a buffer layer (5), bolts, a high-strength impact force buffer mechanism (8), and anchor bolts (9); Prefabricating components of a high-strength impact buffer mechanism (8) in a factory, the components of the high-strength impact buffer mechanism (8) including a positioning plate b (802) integrated with a positioning plate a (801), a column steel pipe a (803), a column steel pipe b (804), a steel longitudinal beam (806), a spring (807), and a steel ground beam (808); The second step is to transport the components of the buffer pressure relief shed described in the first step to the area to be rescued; The third step is to build a prefabricated buffer pressure relief shed in the area to be rescued and rescued. ①, Position and install the steel ground beam (808), After drilling holes in the existing road surface (10) in the area to be rescued and disaster relief, anchor bolts (9) are driven in, and after the top ends of the anchor bolts (9) are passed through the bolt holes in the steel ground beam (808), the steel ground beam (808) is fixed to the existing road surface (10) by means of locking nuts; ② Install high-strength impact buffer mechanism (8), Fix the positioning plate a (801) to the steel ground beam (808) by bolts, then clamp the column steel pipe a (803) to the positioning plate b (802), and then place a set of springs (807) in the inner cavity of the column steel pipe a (803); Then the workers installed the column steel pipe b (804) filled with C30 micro-expansion concrete (805) into the inner cavity of the column steel pipe a (803), so that the lower end of the column steel pipe b (804) was pressed against the top of the spring (807), and then welded the steel longitudinal beam (806) to the top of the column steel pipe b (804); Next, the shed hole support steel (2) is fixed to the steel longitudinal beam (806) by bolts; ③, build the steel corrugated plate layer (41), Connecting a plurality of steel corrugated plates (4) to the shed hole support steel (2) by bolts to form an arched steel shed roof, and then connecting the plurality of steel corrugated plates (4) to the steel longitudinal beams (3) by bolts at the arch foot, so that the plurality of steel corrugated plates (4) and the steel longitudinal beams (3) integrally form a steel corrugated plate layer (41); ④. Install the buffer layer (5) to form the steel shed segment (1). A buffer layer (5) made of a flexible buffer material is installed on the outer wall of the steel corrugated plate layer (41) to form a steel shed segment (1); The fourth step is to assemble at least two steel shed segments (1) to form an assembled buffer pressure relief shed hole. Repeat the steps described in the third step to build a required number of steel shed segments (1), a settlement joint (6) is provided at the connection between two adjacent steel shed segments (1), and the required number of steel shed segments (1) are assembled to form an assembled buffer pressure relief shed cave; The fifth step is to restore traffic after clearing the construction waste.

2. The method for emergency rescue using an assembled buffer and pressure relief shed according to claim 1 is characterized in that: After the fifth step, there is a sixth step, post-maintenance. As time passes, the spring (807) in the high-strength impact buffer mechanism (8) is damaged and the passage is cut off. The worker will use the jack (12) to lift the steel longitudinal beam (806) and the single-section steel shed segment (1) integral therewith as a whole. After the hollow structure is formed, the spring (807) will be replaced. After the spring (807) is replaced, the jack (12) is removed and the passage is restored.

3. The method for emergency rescue using an assembled buffer and pressure relief shed according to claim 2 is characterized in that: An annular flange (401) and a longitudinal flange (402) are fixed to the steel corrugated plate (4); the longitudinal flange (402) is fixed to the top plate (3) of the shed hole support steel (2) by bolts; and the annular flange (401) is fixed to the vertical plate (11) of the shed hole support steel (2) by bolts. The bottom plate (7) of the shed hole support steel (2) is fixed to the steel longitudinal beam (806) of the high-strength impact buffer mechanism (8) by bolts; The top plate (3) is fixed to the steel longitudinal beam (806) of the high-strength impact buffer mechanism (8) by means of bolts.

4. The method for emergency rescue using an assembled buffer and pressure relief shed according to claim 3 is characterized in that: An integral reinforcement plate (809) is provided on the outer wall of the column steel pipe a (803).

5. The method for emergency rescue using an assembled buffer and pressure relief shed according to claim 4 is characterized in that: Both ends of the spring (807) are fixed on the spring seat (810).

6. The method for emergency rescue using an assembled buffer and pressure relief shed according to claim 1 is characterized in that: The steel corrugated plate (4) is pressed from Q355B hot-rolled steel plate, and its surface is hot-dip galvanized, with a galvanizing amount of not less than 600g / m² and an average thickness of not less than 84μm.

7. The method for emergency rescue using an assembled buffer and pressure relief shed according to claim 1 is characterized in that: The shed hole supporting steel (2) is arc-shaped.

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