Safety explosion-proof protection device for tunnel excavation

Abstract

The invention provides a safety explosion-proof protection device for tunnel excavation, and relates to the technical field of tunnel excavation protection, the safety explosion-proof protection device comprises a protection structure, a supporting mechanism is arranged on the inner side of the protection structure, the supporting mechanism is used for supporting the protection structure, a plurality of mounting holes are formed in the protection structure, and the mounting holes are used for fixing the protection structure when the protection structure is assembled. The modular design is adopted, splicing and assembling can be achieved through mutual matching of bolts and mounting holes during mounting, the construction process is greatly simplified, the construction efficiency is improved, repeated use can be achieved, and resource waste is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel excavation protection, and more particularly, to a safety explosion-proof protection device for tunnel excavation. Background Art

[0002] In tunnel construction, especially when using a construction method that combines a tunnel boring machine (TBM) and the drill and blast method, the excavation of the cross passage is crucial. As a key connecting passage between the TBM pilot tunnel and the drill and blast main tunnel, the excavation efficiency and construction safety of the cross passage directly affect the progress and cost of the entire project. However, a series of challenges often accompany the excavation process of the cross passage, especially the problems of flying rock strikes and vibration damage caused by blasting operations. These problems are particularly prominent in the area near the TBM pilot tunnel.

[0003] When excavating the cross passage near the TBM pilot tunnel, it is necessary to specially protect key equipment such as the air ducts above and the suspended belt conveyors to prevent damage caused by blasting flying rocks and shock waves. Traditional protective measures, such as building temporary protective sheds, although can reduce the damage to a certain extent, often have many deficiencies. For example, the building process is cumbersome and inefficient; and the disassembly and reusability are poor, resulting in a waste of resources. Therefore, we make improvements and propose a safety explosion-proof protection device for tunnel excavation. Summary of the Invention

[0004] The purpose of the present invention is to address the problems currently existing in the cumbersome building process, low efficiency; and poor disassembly and reusability, resulting in a waste of resources.

[0005] To achieve the above-mentioned invention purpose, the present invention provides a safety explosion-proof protection device for tunnel excavation to improve the above problems.

[0006] Specifically, this application is as follows:

[0007] A safety explosion-proof protection device for tunnel excavation includes a protective structure. A support mechanism is arranged inside the protective structure, and the support mechanism is used to support the protective structure. A plurality of installation holes are arranged on the protective structure, and the installation holes are used for fixing during the assembly of the protective structure. This application adopts a modular design. During installation, the splicing and assembly can be achieved through the cooperation of bolts and installation holes, greatly simplifying the construction process, improving the construction efficiency, being reusable, and reducing the waste of resources.

[0008] As a preferred technical solution of this application, the protective structure includes a first protective cover and two second protective covers respectively located on both sides of the first protective cover, and a connecting member is arranged between the second protective cover and the first protective cover.

[0009] As a preferred technical solution of the present application, several of the installation holes are respectively formed in the first protective cover and the second protective cover.

[0010] As a preferred technical solution of the present application, several reinforcing beams are fixedly connected inside both the first protective cover and the second protective cover.

[0011] As a preferred technical solution of the present application, the connecting member includes two first connecting plates respectively installed on the first protective cover and the second protective cover, and a connecting shaft is connected between the two first connecting plates.

[0012] As a preferred technical solution of the present application, a reinforcing component is arranged between the first protective cover and the second protective cover. The reinforcing component includes two second connecting plates respectively installed on the first protective cover and the second protective cover. First connecting rods are arranged on both of the two second connecting plates, and a first threaded rod is hinged between the two first connecting rods.

[0013] As a preferred technical solution of the present application, the supporting mechanism includes two support pipes located below the first protective cover. Support plates are fixedly connected to the tops of the two support pipes. A support frame is fixedly connected between the tops of the two support plates. Several support rods are fixedly installed on the top of the support frame. The top ends of the support rods are fixedly installed with a first mounting plate. The bottom of the first protective cover is fixedly installed with a second mounting plate, and the second mounting plate and the first mounting plate are connected by bolts.

[0014] As a preferred technical solution of the present application, a column is inserted into the support pipe. The bottom end of the column passes through the support pipe and is fixedly connected with a floor mat. A hydraulic cylinder is arranged inside the support pipe. One end of the hydraulic cylinder is connected to the top of the floor mat. Connecting seats are installed on both sides of the support pipe.

[0015] As a preferred technical solution of the present application, a second connecting rod is installed on the support pipe. A third connecting rod is fixedly installed inside the second protective cover. A second threaded rod is hinged between the second connecting rod and the third connecting rod.

[0016] As a preferred technical solution of the present application, a reinforcing rod is installed on the support pipe by bolts, and one end of the reinforcing rod is fixedly connected to the second protective cover.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] In the solution of the present application:

[0019] In order to solve the problems in the prior art that the construction process is cumbersome and inefficient, and the disassembly and reusability are poor, resulting in waste of resources, the present application adopts a modular design. During installation, splicing and assembly can be achieved through the cooperation of bolts and installation holes, greatly simplifying the construction process, improving the construction efficiency, enabling repeated use, and reducing waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a schematic structural diagram of the safety explosion-proof protection device for tunnel excavation provided by the present application;

[0021] Figure 2 FIG. is a schematic bottom view structural diagram of the safety explosion-proof protection device for tunnel excavation provided by the present application;

[0022] Figure 3 FIG. is a schematic front view structural diagram of the safety explosion-proof protection device for tunnel excavation provided by the present application;

[0023] Figure 4 FIG. is for the safety explosion-proof protection device for tunnel excavation provided by the present application Figure 2 in which the enlarged structure diagram of A;

[0024] Figure 5 FIG. is for the safety explosion-proof protection device for tunnel excavation provided by the present application Figure 2 in which the enlarged structure diagram of B.

[0025] Reference numerals in the figures:

[0026] 1. Protection structure; 101. First protective cover; 102. Second protective cover; 103. First connecting plate; 104. Connecting shaft; 105. Second connecting plate; 106. First connecting rod; 107. First threaded tie rod; 108. Reinforcing beam; 2. Installation hole; 3. Support mechanism; 301. Support pipe; 302. Support plate; 303. Support frame; 304. Support rod; 305. First mounting plate; 306. Second mounting plate; 307. Column; 308. Floor mat; 309. Connecting seat; 310. Reinforcing rod; 311. Second connecting rod; 312. Third connecting rod; 313. Second threaded tie rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] As described in the background art, when excavating a cross-passage near the pilot tunnel of a roadheader, it is necessary to particularly protect key equipment such as the air duct above and the suspended belt conveyor to prevent damage caused by blasting flying stones and shock waves. Traditional protection measures, such as building a temporary protective shed, although can reduce the damage to a certain extent, often have many deficiencies. For example, the building process is cumbersome and inefficient; and the disassembly and reusability are poor, resulting in a waste of resources.

[0029] To solve this technical problem, the present invention provides a safety explosion-proof protection device for tunnel excavation.

[0030] Specifically, please refer to Figures 1 - 5 , the safety explosion-proof protection device for tunnel excavation specifically includes:

[0031] A protection structure 1, a support mechanism 3 is arranged inside the protection structure 1, the support mechanism 3 is used to support the protection structure 1, and a plurality of installation holes 2 are arranged on the protection structure 1, and the installation holes 2 are used for fixing when the protection structure 1 is assembled.

[0032] The safety explosion-proof protection device for tunnel excavation provided by the present invention adopts a modular design. During installation, splicing and assembly can be achieved through the cooperation of bolts and the installation holes 2, which greatly simplifies the construction process, improves the construction efficiency, can be reused, and reduces the waste of resources.

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings.

[0034] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] Embodiment 1, please refer to Figures 1 - 5 , a safety explosion-proof protection device for tunnel excavation, includes a protection structure 1, a support mechanism 3 is arranged inside the protection structure 1, the support mechanism 3 is used to support the protection structure 1, and a plurality of installation holes 2 are arranged on the protection structure 1, and the installation holes 2 are used for fixing when the protection structure 1 is assembled; the present application adopts a modular design. During installation, splicing and assembly can be achieved through the cooperation of bolts and the installation holes 2, which greatly simplifies the construction process, improves the construction efficiency, can be reused, and reduces the waste of resources.

[0037] Further, the protective structure 1 includes a first protective cover 101 and two second protective covers 102 respectively located on both sides of the first protective cover 101. A connecting member is provided between the second protective cover 102 and the first protective cover 101, and the connecting member is used to connect the first protective cover 101 and the second protective cover 102.

[0038] Further, as Figure 2 and Figure 4 shown, a plurality of mounting holes 2 are respectively formed in the first protective cover 101 and the second protective cover 102. This setting enables each component to be connected together by bolts during splicing, with firm connection and convenient disassembly and assembly.

[0039] Further, as Figures 1 - 2 shown, a plurality of reinforcing beams 108 are fixedly connected inside both the first protective cover 101 and the second protective cover 102. The arrangement of the reinforcing beams 108 can reinforce the first protective cover 101 and the second protective cover 102, improving the load-bearing capacity.

[0040] Further, as Figure 4 shown, the connecting member includes two groups of first connecting plates 103 respectively installed on the first protective cover 101 and the second protective cover 102. A connecting shaft 104 is connected between the two groups of first connecting plates 103. Through the mutual cooperation of the first connecting plates 103 and the connecting shaft 104, the first protective cover 101 and the second protective cover 102 can be hinged together. This setting enables the first protective cover 101 and the second protective cover 102 to be slightly folded, thereby facilitating the picking and placing during disassembly and assembly.

[0041] Further, as Figure 3 shown, a reinforcing component is provided between the first protective cover 101 and the second protective cover 102. The reinforcing component includes two second connecting plates 105 respectively installed on the first protective cover 101 and the second protective cover 102. First connecting rods 106 are provided on both of the two second connecting plates 105. A first threaded pull rod 107 is hinged between the two first connecting rods 106. The mutual cooperation of the first threaded pull rod 107, the first connecting rods 106 and the second connecting plates 105 can reinforce the first protective cover 101 and the second protective cover 102, so as to improve the stability between the first protective cover 101 and the second protective cover 102.

[0042] Example 2 further optimizes the safety explosion-proof protection device for tunnel excavation provided in Example 1. Specifically, as Figures 1 - 3As shown in the figure, the support mechanism 3 includes two support pipes 301 located below the first protective cover 101. At the top of each of the two support pipes 301, a support plate 302 is fixedly connected. Between the tops of the two support plates 302, a support frame 303 is fixedly connected. At the top of the support frame 303, a number of support rods 304 are fixedly installed. At the top end of the support rod 304, a first mounting plate 305 is fixedly installed. At the bottom of the first protective cover 101, a second mounting plate 306 is fixedly installed. The second mounting plate 306 and the first mounting plate 305 are connected by bolts. The support pipes 301, the support plates 302, and the support frame 303 cooperate with each other to support the support rods 304. The support rods 304 are connected to the first protective cover 101 through the first mounting plate 305 and the second mounting plate 306, so as to support the first protective cover 101.

[0043] Further, as Figure 1 shown, a column 307 is inserted into the support pipe 301. The bottom end of the column 307 passes through the support pipe 301 and is fixedly connected with a floor mat 308. A hydraulic cylinder is arranged in the support pipe 301. One end of the hydraulic cylinder is connected to the top of the floor mat 308. The hydraulic cylinder can drive the column 307 to expand and contract through the floor mat 308 for easy disassembly and assembly. Connecting seats 309 are installed on both sides of the support pipe 301. When several of the present applications are assembled, rods, threads, and the connecting seats 309 can be used to cooperate to strengthen the connection between the support pipes 301 in two of the present applications, so as to improve the stability after assembly.

[0044] Example 3 further optimizes the safety explosion-proof protection device for tunnel excavation provided in Example 1 or 2. Specifically, as Figures 1 - 3 shown, a second connecting rod 311 is installed on the support pipe 301. A third connecting rod 312 is fixedly installed inside the second protective cover 102. A second threaded rod 313 is hinged between the second connecting rod 311 and the third connecting rod 312. The second connecting rod 311, the third connecting rod 312, and the second threaded rod 313 cooperate with each other to assist in strengthening the connection between the second protective cover 102 and the support pipe 301.

[0045] Further, as Figure 1 shown, a reinforcing rod 310 is installed on the support pipe 301 through bolts. One end of the reinforcing rod 310 is fixedly connected to the second protective cover 102. The support pipe 301 can support the second protective cover 102 through the reinforcing rod 310 to improve the stability of the second protective cover 102.

[0046] The use process of the safety explosion-proof protection device for tunnel excavation provided by the present invention is as follows:

[0047] During installation, remove the bolts between the reinforcement rods 310, rotate the first threaded tie rod 107 to cause the first protective cover 101 and the second protective cover 102 to rotate and contract around the connecting shaft 104. The hydraulic cylinder drives the floor mat 308 to approach the support tube 301. After placing this application inside the tunnel, the hydraulic cylinder drives the support tube 301 to rise so that the top of the first protective cover 101 contacts the tunnel top. Rotate the first threaded tie rod 107 to cause the first protective cover 101 and the second protective cover 102 to rotate and open around the connecting shaft 104. Then fix the reinforcement rod 310 and the first protective cover 101 together with bolts, and use bolts and the mounting holes 2 to fix the first protective cover 101 and the second protective cover 102 between adjacent applications together;

[0048] During disassembly, remove the bolts connected to the mounting holes 2, then remove the bolts between the reinforcement rod 310 and the support tube 301. Rotate the first threaded tie rod 107 to cause the first protective cover 101 and the second protective cover 102 to rotate and contract around the connecting shaft 104. The hydraulic cylinder drives the floor mat 308 to approach the support tube 301, and then this application can be taken out of the tunnel.

[0049] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present invention in other related technical fields is similarly within the scope of the patent protection of the present invention.

Claims

1. A safety explosion-proof protection device for tunnel excavation, characterized in that: The protective structure (1) comprises a support mechanism (3) arranged inside the protective structure (1), the support mechanism (3) being used to support the protective structure (1), and a plurality of mounting holes (2) being arranged on the protective structure (1), the mounting holes (2) being used to fix the protective structure (1) during assembly.

2. A safety explosion-proof protection device for tunnel excavation according to claim 1, characterized in that: The protective structure (1) comprises a first protective cover (101) and two second protective covers (102) respectively located on both sides of the first protective cover (101), and a connecting piece is provided between the second protective cover (102) and the first protective cover (101).

3. A safety explosion-proof protection device for tunnel excavation according to claim 2, characterized in that: A plurality of mounting holes (2) are respectively provided on the first protective cover (101) and the second protective cover (102).

4. A safety explosion-proof protection device for tunnel excavation according to claim 3, characterized in that: A plurality of reinforcing beams (108) are fixedly connected inside the first protective cover (101) and the second protective cover (102).

5. A safety explosion-proof protection device for tunnel excavation according to claim 4, characterized in that: The connecting member comprises two groups of first connecting plates (103) respectively mounted on the first protective cover (101) and the second protective cover (102), and a connecting shaft (104) is connected between the two groups of the first connecting plates (103).

6. A safety explosion-proof protection device for tunnel excavation according to claim 5, characterized in that: A reinforcement component is provided between the first protective cover (101) and the second protective cover (102), and the reinforcement component comprises two second connecting plates (105) respectively mounted on the first protective cover (101) and the second protective cover (102), a first connecting rod (106) is provided on each of the two second connecting plates (105), and a first threaded pull rod (107) is hinged between the two first connecting rods (106).

7. A safety explosion-proof protection device for tunnel excavation according to claim 6, characterized in that: The support mechanism (3) comprises two support tubes (301) located below the first protective cover (101), the tops of the two support tubes (301) are fixedly connected with support plates (302), the tops of the two support plates (302) are fixedly connected with a support frame (303), the tops of the support frames (303) are fixedly mounted with a plurality of support rods (304), the tops of the support rods (304) are fixedly mounted with a first mounting plate (305), the bottom of the first protective cover (101) is fixedly mounted with a second mounting plate (306), and the second mounting plate (306) is connected to the first mounting plate (305) by bolts.

8. The safety explosion-proof protection device for tunnel excavation according to claim 7, characterized in that: A column (307) is inserted and connected in the support tube (301), the bottom end of the column (307) passes through the support tube (301) and is fixedly connected to a floor mat (308), a hydraulic cylinder is arranged in the support tube (301), one end of the hydraulic cylinder is connected to the top of the floor mat (308), and connecting seats (309) are installed on both sides of the support tube (301).

9. A safety explosion-proof protection device for tunnel excavation according to claim 8, characterized in that: A second connecting rod (311) is installed on the support tube (301), a third connecting rod (312) is fixedly installed inside the second protective cover (102), and a second threaded pull rod (313) is hinged between the second connecting rod (311) and the third connecting rod (312).

10. A safety explosion-proof protection device for tunnel excavation according to claim 9, characterized in that: A reinforcement rod (310) is mounted on the support tube (301) via bolts, and one end of the reinforcement rod (310) is fixedly connected to the second protective cover (102).

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