Gas tunnel construction steel arch

Abstract

The utility model relates to a gas tunnel construction steel arch which comprises a first steel arch body and two sets of second steel arch bodies, two sets of first connecting blocks are fixed to the two ends of the first steel arch body, two sets of second connecting blocks are fixed to the two ends of the two sets of second steel arch bodies, and the first connecting blocks and the second connecting blocks are in threaded fastening through fastening bolts. Conical structures are fixed to the bottoms of the two sets of grounding sockets, first clamping grooves are fixed to the two ends of the first steel arch frame body, and second clamping grooves are fixed to the two ends of the two sets of second steel arch frame bodies. Through the arrangement of the first clamping groove, the first shielding plate, the second clamping groove and the second shielding plate, after the whole steel arch frame is installed, the first shielding plate and the second shielding plate are inserted into the first clamping groove and the second clamping groove in the two ends of the first steel arch frame body and the second steel arch frame body; therefore, a protection function is provided for the top between the two groups of complete steel arches, and falling rocks and other objects on the top of the tunnel are prevented from falling to injure constructors.

Description

Technical Field

[0001] This utility model relates to the field of gas tunnel construction, and in particular to a steel arch frame for gas tunnel construction. Background Technology

[0002] In the construction of gas tunnels, steel arches play a crucial role. Made of high-strength steel, they possess significant rigidity and strength, supporting the surrounding rock before shotcrete takes effect and preventing deformation. Furthermore, steel arches can be combined with anchor bolts, steel mesh, and other support structures to form a joint support system, thereby enhancing the stability and safety of the initial tunnel support and ensuring the smooth progress of gas tunnel construction.

[0003] The inventors believe that the current traditional steel arch frame construction for gas tunnels requires workers to install multiple steel arch frame components one by one before fastening them together. At the same time, the complete steel arch frame cannot provide good protection against falling objects from the tunnel above, which could injure construction workers. In addition, when the steel arch frame is placed and supported, it only contacts and holds the ground through the arched side beams on both sides, which may cause the position of the steel arch frame to shift due to slippage. Utility Model Content

[0004] To address the issues of traditional steel arch frame installation methods that require workers to install multiple steel arch frame components one by one before fastening them together, the inadequacy of the complete steel arch frame in providing adequate protection against falling debris from the tunnel above, and the fact that the steel arch frame is only supported by arched side beams on both sides, which may cause the steel arch frame to shift due to slippage, a new type of steel arch frame for gas tunnel construction is proposed.

[0005] The technical solution for a steel arch frame used in gas tunnel construction provided in this application is as follows:

[0006] A steel arch frame for gas tunnel construction includes a first steel arch frame body and two sets of second steel arch frame bodies. Two sets of first connecting blocks are fixed to both ends of the first steel arch frame body, and two sets of second connecting blocks are fixed to both ends of the two sets of second steel arch frame bodies. A grounding socket is threadedly connected to the second connecting block at the end of each set of second steel arch frame bodies away from the first steel arch frame body via fastening bolts. The first connecting block and the second connecting block are threadedly fastened together by fastening bolts. A conical structure is fixed to the bottom of each set of grounding sockets. A first slot is fixed to both ends of the first steel arch frame body, and a first shielding plate is inserted into the interior of the first slot. A second slot is fixed to both ends of each set of second steel arch frame bodies, and a second shielding plate is inserted into the interior of the second slot.

[0007] By adopting the above technical solution, the first connecting block and the second connecting block can be fastened with bolts to securely fix the first steel arch frame and the two sets of second steel arch frames. The grounding socket is fastened to the second steel arch frame with bolts to provide grounding for the second steel arch frame. The first slot and the second slot provide installation space for the first shield and the second shield. The first shield and the second shield provide protection for the construction personnel above.

[0008] Optionally, a first top plate is fixed to the top of the first steel arch frame, and a second top plate is fixed to the outer side of each of the two sets of second steel arch frames.

[0009] By adopting the above technical solution, the fixation of the first top plate to the first steel arch frame and the second top plate on the outer side of the two sets of second steel arch frames provides additional structural support and strength enhancement.

[0010] Optionally, the first steel arch frame and the first top plate, and the second steel arch frame and the second top plate are both fixedly connected by several sets of support rods, forming a stable triangular structure.

[0011] By adopting the above technical solution, the support rods tightly connect the first steel arch frame to the first top plate and the second steel arch frame to the second top plate, forming a solid support frame. This structure can effectively resist forces and deformations from all directions, ensuring that the steel arch frame remains stable during tunnel construction.

[0012] Optionally, a first connecting button is fixed at the bottom of both ends of the first steel arch frame, and two sets of second connecting buttons are fixed at the ends of the two sets of second steel arch frames near the first steel arch frame.

[0013] By adopting the above technical solution, the first connecting button and the second connecting button cooperate with the connecting shaft, so that the second steel arch frame can rotate, thus having the function of folding and storing during the preparation process.

[0014] Optionally, the two sets of second connecting buttons engage with the first connecting button, and the two sets of second connecting buttons and the first connecting button are internally engaged with a connecting shaft.

[0015] By adopting the above technical solution, the interlocking design of the second connecting button and the first connecting button realizes a firm connection between the first steel arch frame and the second steel arch frame. The rotational interlocking method of the connecting shaft also facilitates the storage and unfolding of the steel arch frame.

[0016] Optionally, the first top plate and the first shielding plate, and the second top plate and the second shielding plate are arranged in a parallel structure.

[0017] By adopting the above technical solution, the parallel structure creates uniform and consistent gaps between the first roof plate and the first shielding plate, as well as between the second roof plate and the second shielding plate. These gaps not only facilitate air circulation in the tunnel, reduce wind resistance, and improve ventilation efficiency, but also effectively prevent debris or rocks falling from the tunnel roof from directly impacting the roof plate, thereby protecting the structural integrity of the roof plate.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. This utility model provides a steel arch frame for gas tunnel construction. By setting a first slot, a first shielding plate, a second slot, and a second shielding plate, after the overall steel arch frame is installed, the first shielding plate and the second shielding plate are inserted into the first slot and the second slot at both ends of the first steel arch frame body and the second steel arch frame body, thereby providing protection for the top between the two complete steel arch frames and preventing falling rocks and other objects from the tunnel top from injuring construction personnel.

[0020] 2. This utility model provides a steel arch frame for gas tunnel construction. By setting a second connecting block and a grounding socket, when it is necessary to install the first steel arch frame and two sets of second steel arch frames, the two sets of grounding sockets are first inserted into the ground through the conical structure at the bottom, so that the grounding sockets are stably installed in the ground. Then, the second connecting block at one end of the bottom of the two sets of second steel arch frames is fitted and pressed against the grounding socket, and the connection is secured with fastening bolts. This provides a stable installation environment for the bottom of the two sets of second steel arch frames and prevents the two sets of second steel arch frames from sliding and loosening during use.

[0021] 3. This utility model provides a steel arch frame for gas tunnel construction. By setting a first connecting button, a second connecting button, and a connecting shaft, when installing the first steel arch frame and the second steel arch frame, the first steel arch frame is engaged with the two sets of second connecting buttons at one end of the two sets of second steel arch frame through the first connecting buttons on both sides. At the same time, the first connecting button and the two sets of second connecting buttons are rotated and limited by the connecting shaft. This allows the two sets of second steel arch frame on both sides to move conveniently and synchronously while the first steel arch frame is being moved. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram showing the first shielding plate, the second shielding plate, and the grounding socket of this utility model in a split state;

[0024] Figure 3 This is a schematic diagram of the first and second steel arch frames of this utility model in an unfastened state.

[0025] Figure 4 This is an enlarged structural diagram of the present invention and point A in section 2.

[0026] The following are the labels in the diagram: 1. First steel arch frame; 2. First top plate; 3. Support rod; 4. First slot; 5. First shielding plate; 6. First connecting block; 7. First connecting button; 8. Second steel arch frame; 9. Second top plate; 10. Second slot; 11. Second shielding plate; 12. Second connecting block; 13. Second connecting button; 14. Connecting shaft; 15. Fastening bolt; 16. Grounding socket. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0028] In this embodiment:

[0029] like Figures 1-4 As shown, this utility model discloses a steel arch frame for gas tunnel construction, comprising a first steel arch frame body 1 and two sets of second steel arch frame bodies 8. Two sets of first connecting blocks 6 are fixed at both ends of the first steel arch frame body 1, and two sets of second connecting blocks 12 are fixed at both ends of the two sets of second steel arch frame bodies 8. The second connecting blocks 12 at the ends of the two sets of second steel arch frame bodies 8 away from the first steel arch frame body 1 are threadedly connected to grounding sockets 16 by fastening bolts 15. The first connecting blocks 6 and the second connecting blocks 12 are threadedly fastened by fastening bolts 15. The bottom of the two sets of grounding sockets 16 is fixed with a conical structure. A first slot 4 is fixed at both ends of the first steel arch frame body 1, and a first shielding plate 5 is inserted into the inside of the first slot 4. A second slot 10 is fixed at both ends of the two sets of second steel arch frame bodies 8, and a second shielding plate 11 is inserted into the inside of the second slot 10.

[0030] The first steel arch frame 1 and the two sets of second steel arch frames 8 are firmly connected by the first connecting block 6, the second connecting block 12, and the fastening bolts 15. This connection method is not only simple and easy to implement, but also ensures the overall stability of the steel arch frame during tunnel construction and effectively resists the pressure and deformation of the surrounding rock. The second connecting block 12 at the end of the two sets of second steel arch frames 8 away from the first steel arch frame 1 is threadedly connected to the grounding socket 16 by the fastening bolts 15. The bottom of the grounding socket 16 is fixed with a conical structure, which allows the second steel arch frame 8 to be stably installed on the ground, preventing the steel arch frame from sliding and loosening during construction, and further improving the stability and safety of the steel arch frame. The first shielding plate 5 and the second shielding plate 11 not only provide an additional protective layer for the steel arch frame, effectively preventing falling objects from the top of the tunnel from injuring construction personnel and equipment, but also make the installation and disassembly of the shielding plates more convenient and quick, improving construction efficiency.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the top of the first steel arch frame 1 is fixed with a first top plate 2, and the outer sides of the two sets of second steel arch frames 8 are fixed with second top plates 9.

[0032] During tunnel construction, the first roof slab 2 and the second roof slab 9 can withstand the pressure from the surrounding rock above and distribute the pressure to the overall structure of the first steel arch frame 1 and the second steel arch frame 8, thereby improving the load-bearing capacity and stability of the steel arch frame.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the first steel arch frame 1 and the first top plate 2, and the second steel arch frame 8 and the second top plate 9 are all fixedly connected by several sets of support rods 3, forming a stable triangular structure.

[0034] The support rod 3 also improves the lateral displacement resistance and seismic performance of the first steel arch frame 1 and the second steel arch frame 8. During tunnel construction, due to geological conditions and construction operations, the first steel arch frame 1 and the second steel arch frame 8 may be subjected to lateral forces and undergo lateral displacement. The presence of the support rod 3 can effectively limit this lateral displacement and maintain the correct position of the steel arch frame.

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the bottom of both ends of the first steel arch frame 1 is fixed with a first connecting button 7, and the two sets of second steel arch frames 8 are fixed with two sets of second connecting buttons 13 at the end near the first steel arch frame 1.

[0036] The first connecting button 7 and the second connecting button 13 provide a convenient and secure way to connect the steel arch frames. Through these connecting buttons, the first steel arch frame 1 and the second steel arch frame 8 can be easily assembled and disassembled, which greatly improves construction efficiency.

[0037] like Figure 4 As shown, the two sets of second connecting buttons 13 engage with the first connecting button 7, and the two sets of second connecting buttons 13 and the first connecting button 7 are internally engaged with the connecting shaft 14.

[0038] The interlocking design of the second connecting button 13 and the first connecting button 7 is not only simple and easy to implement, but also ensures the stability and reliability of the connection, so that the entire steel arch frame structure can maintain its integrity and consistency when under stress.

[0039] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the first top plate 2 and the first shielding plate 5, and the second top plate 9 and the second shielding plate 11 are arranged in a parallel structure.

[0040] The parallel structure also enhances the overall aesthetics and harmony of the steel arch frame. The parallel relationship between the first top plate 2 and the first shielding plate 5, as well as between the second top plate 9 and the second shielding plate 11, makes the entire steel arch frame visually neater and more unified, improving the overall image of the tunnel construction.

[0041] In implementation, firstly, the two sets of grounding sockets 16 are inserted into the appropriate ground location through the conical structure at the bottom. Then, the first steel arch frame 1 is lifted using lifting equipment such as a forklift. The first steel arch frame 1 then drives the two sets of second steel arch frames 8 into the tunnel. Subsequently, since two sets of second connecting buttons 13 are fixed at one end of each set of second steel arch frames 8 near the first steel arch frame 1, and are rotatably connected to the first connecting buttons 7 at both ends of the first steel arch frame 1 through connecting shafts 14, after rotating the two sets of second steel arch frames 8, the first steel arch frame 1 can be fitted together through the first connecting blocks 6 at both ends and the second connecting blocks 12 at the two ends of the two sets of second steel arch frames 8 near the two ends of the first steel arch frame 1. Finally, the connection is tightened. Bolts 15 are used to thread-tighten the first steel arch frame 1 and the two sets of second steel arch frames 8. Then, the second connecting blocks 12 at the bottom of the two sets of second steel arch frames 8 are also thread-tightened to the two sets of grounding sockets 16 by fastening bolts 15. This allows the first steel arch frame 1, the two sets of second steel arch frames 8 and the two sets of grounding sockets 16 to be stably assembled. Finally, the first shielding plate 5 is inserted into the first slot 4 on the surface of the first steel arch frame 1, and the second shielding plate 11 is inserted into the second slot 10 on the surface of the two sets of second steel arch frames 8. The second shielding plate 11 is then inserted into the first slot 4 and the second slot 10 on the other set of steel arch frames that have been installed. This provides protection for the top of the space between the two sets of fully installed steel arch frames.

[0042] The advantages of this technical solution in practical applications include, but are not limited to, the following:

[0043] 1. By setting the first slot 4, the first shielding plate 5, the second slot 10 and the second shielding plate 11, the top between the two complete steel arch frames is protected to prevent falling rocks and other objects from the tunnel top from injuring construction workers.

[0044] 2. By setting the second connecting block 12 and the grounding socket 16, a stable installation environment is provided for the bottom of the two sets of second steel arch frame bodies 8, preventing the two sets of second steel arch frame bodies 8 from sliding and loosening during use.

[0045] 3. By setting the first connecting button 7, the second connecting button 13 and the connecting shaft 14, the two sets of second steel arch frames 8 on both sides can be moved conveniently and synchronously while the first steel arch frame 1 is moved.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel arch frame for gas tunnel construction, characterized in that: It includes a first steel arch frame (1) and two sets of second steel arch frames (8). Two sets of first connecting blocks (6) are fixed at both ends of the first steel arch frame (1), and two sets of second connecting blocks (12) are fixed at both ends of the two sets of second steel arch frames (8). The second connecting blocks (12) at the ends of the two sets of second steel arch frames (8) away from the first steel arch frame (1) are connected to grounding sockets (16) by fastening bolts (15). The first connecting block (6) and the second connecting block (12) are fastened together by fastening bolts (15). The bottom of the two sets of grounding sockets (16) is fixed with a conical structure. The first steel arch frame (1) is fixed with first slots (4) at both ends, and a first shielding plate (5) is inserted into the inside of the first slots (4). The two sets of second steel arch frames (8) are fixed with second slots (10) at both ends, and a second shielding plate (11) is inserted into the inside of the second slots (10).

2. The steel arch frame for gas tunnel construction according to claim 1, characterized in that, The top of the first steel arch frame (1) is fixed with a first top plate (2), and the outer sides of the two sets of second steel arch frames (8) are fixed with second top plates (9).

3. A steel arch frame for gas tunnel construction according to claim 1, characterized in that, The first steel arch frame (1) and the first top plate (2) and the second steel arch frame (8) and the second top plate (9) are all fixedly connected by several sets of support rods (3) and form a triangular stable structure.

4. A steel arch frame for gas tunnel construction according to claim 1, characterized in that, The bottom of both ends of the first steel arch frame (1) is fixed with a first connecting button (7), and the two sets of second steel arch frames (8) are fixed with two sets of second connecting buttons (13) at the end near the first steel arch frame (1).

5. A steel arch frame for gas tunnel construction according to claim 4, characterized in that, The two sets of second connecting buttons (13) engage with the first connecting button (7), and the two sets of second connecting buttons (13) and the first connecting button (7) are internally engaged with the connecting shaft (14).

6. A steel arch frame for gas tunnel construction according to claim 2, characterized in that, The first top plate (2) and the first shielding plate (5) are arranged in parallel with the second top plate (9) and the second shielding plate (11).

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