Tunnel profile steel arch frame reinforcing structure

Abstract

The utility model relates to the field of tunnel construction, and discloses a tunnel profile steel arch reinforcing structure which comprises a steel arch body, a reinforcing support is arranged in the steel arch body, a plurality of vertical supporting rods are fixedly installed on the inner wall face of the steel arch body, and inclined supporting rods are fixedly installed on the left sides and the right sides of the vertical supporting rods correspondingly. A constructor firstly moves the reinforcing support to the bottom of the steel arch frame body, then the reinforcing support is jacked upwards through the first hydraulic cylinder, at the moment, the top of the reinforcing support makes contact with the bottom of the connecting clamping base, and at the moment, the position, close to the middle, of the interior of the steel arch frame body is reinforced and supported conveniently through combination of the vertical supporting rods, the inclined supporting rods, the cross beam and the connecting clamping base; at the moment, the hydraulic telescopic rods I are connected with the steel arch main body, so that the steel arch main body can be further supported and reinforced, the left side and the right side of the steel arch main body are prevented from being bent and deformed under pressure, the anti-pressure capability is improved, and the stability of the tunnel is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of tunnel construction, and specifically relates to a tunnel steel arch reinforcement structure. Background Art

[0002] A tunnel steel arch is a structure used for tunnel support. It consists of a steel arch body and is primarily used in initial tunnel support. The steel arch body comprises multiple steel arch units, which are connected together by connectors to form an integral structure. The steel arch has excellent bearing capacity and stability, effectively supporting the tunnel surrounding rock, preventing deformation and collapse, and ensuring the stability and reliability of the tunnel structure.

[0003] For example, the utility model patent with announcement number CN221346969U discloses a steel support arch structure for tunnels, which includes multiple arch segments, node connecting plates arranged at the ends of the arch segments, and multiple first fasteners arranged on two adjacent node connecting plates. Two pairs of mounting blocks are provided on the arch segments, and second fasteners are provided on the mounting blocks. Connecting steel bars are hooked on two adjacent second fasteners, and the hooked ends of the connecting steel bars are in contact with the inner surface of the second fasteners, and the middle section of the connecting steel bar is in contact with the side of the node connecting plate. The utility model temporarily connects two adjacent arch segments through a quickly disassembled and quickly assembled connecting steel bar, and uses the second fasteners to fix the position of the connecting steel bar, which directly avoids the defects caused by the original support arch requiring each segment to be lifted separately, and the subsequent installation of the first fasteners is simple and the connection is stable, thereby achieving the effect of reducing positioning difficulty and improving installation efficiency.

[0004] However, in actual use, it was found that the multiple arch segments of the device were connected and fixed through node connection plates and fasteners to form an integrated steel arch, which facilitated the subsequent support of the tunnel.

[0005] However, the steel arch frame of this device is composed of multiple segments, which are connected and fixed by connecting plates and fasteners. In this way, when the force exerted on the steel arch frame by the tunnel is too large, the steel arch frame composed of multiple segments is prone to bending and deformation. In addition, the node connecting plates and fasteners are at risk of loosening or falling off when subjected to large forces, which will directly affect the overall stiffness and stability of the steel arch frame. For this purpose, a tunnel-type steel arch frame reinforcement structure is provided. Utility Model Content

[0006] The purpose of this application is to provide a tunnel steel arch reinforcement structure in order to solve the above-mentioned problems.

[0007] The technical solution adopted in this application is as follows: A tunnel-type steel arch reinforcement structure, including a steel arch main body, a reinforcement bracket is arranged inside the steel arch main body, a plurality of vertical support rods are fixedly installed on the inner wall surface of the steel arch main body, and oblique support rods are fixedly installed on the left and right sides of the plurality of vertical support rods, and cross beams are fixedly installed on the bottom surfaces of the vertical support rods and the bottom surfaces of the cross beams are fixedly installed with a plurality of connecting brackets, and the bottom surfaces of the connecting brackets are in contact with the top surface of the reinforcement bracket, and an articulated bracket 1 is fixedly installed on the left and right sides of the reinforcement bracket, and a hydraulic telescopic rod 1 is hinged to the inside of the articulated bracket 1, and a reinforcement beam is fixedly installed on the inner wall surface of the steel arch main body, and a hinged plate is fixedly installed on one side of the reinforcement beam, and the end of the hydraulic telescopic rod 1 away from the articulated bracket 1 is hinged to the inside of the hinged plate.

[0008] In a preferred embodiment, a bottom bracket is fixedly installed on the bottom surface of the reinforcement bracket, support blocks are fixedly installed on the left and right ends of the bottom bracket respectively, a mounting shell is hinged on the bottom surface of the support block, a roller is rotatably connected inside the mounting shell, and a plurality of hydraulic cylinders are installed in an array at equal intervals on the bottom surface of the bottom bracket, and rectangular support plates are fixedly installed on the telescopic ends of the plurality of hydraulic cylinders.

[0009] In a preferred embodiment, the left and right ends of the steel arch frame body are respectively fixedly installed with bottom arch frame segments, and one side of the bottom arch frame segment is fixedly installed with an articulated bracket 2, and the interior of the articulated bracket 2 is hinged with a hydraulic telescopic rod 2, and the end of the hydraulic telescopic rod 2 away from the bottom arch frame segment is hinged inside the articulated bracket 1.

[0010] In a preferred embodiment, an L-shaped connecting plate is fixedly installed on the front side of the steel arch frame body, and a plurality of positioning connecting pins are installed in an array at equal intervals on the inner side wall of the L-shaped connecting plate.

[0011] In a preferred embodiment, an I-shaped mounting block is hingedly connected to one side of the bottom arch segment, and a second hydraulic cylinder is fixedly mounted on the bottom surface of the I-shaped mounting block.

[0012] In a preferred embodiment, a reinforced concrete slab is fixedly installed on the outer surface of the steel arch frame body.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0014] 1、According to the scheme, the construction personnel first moves the reinforcing support to the bottom of the steel arch main body, then the reinforcing support is lifted up by the hydraulic cylinder I, at this time, the top of the reinforcing support is in contact with the bottom of the connecting clasp, at this time, the combination of the vertical support rod, the inclined support rod, the cross beam and the connecting clasp can facilitate the reinforcing and supporting of the steel arch main body near the middle position, which can improve the compression resistance of the steel arch main body, so that it can better withstand the pressure of the tunnel, at this time, the hydraulic telescopic rod I connected with the steel arch main body can further support and reinforce it to prevent the left and right sides from bending and deforming when subjected to pressure, increase the compression resistance, and further improve the stability of the tunnel. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the application;

[0016] Figure 2 It is a schematic diagram of the vertical support rod structure of the application;

[0017] Figure 3 It is a schematic diagram of the bottom arch segment structure of the application;

[0018] Figure 4 It is a schematic diagram of the internal structure of the mounting shell of the application.

[0019] Marked in the figure: 1, steel arch main body; 2, reinforcing support; 3, vertical support rod; 4, inclined support rod; 5, cross beam; 6, connecting clasp; 7, articulated support I; 8, hydraulic telescopic rod I; 9, reinforcing beam; 10, articulated plate; 11, bottom support; 12, support block; 13, mounting shell; 14, roller; 15, hydraulic cylinder I; 16, rectangular support plate; 17, bottom arch segment; 18, articulated support II; 19, hydraulic telescopic rod II; 20, L-shaped connecting plate; 21, positioning connecting pin; 22, I-shaped mounting block; 23, hydraulic cylinder II; 24, reinforced concrete slab. DETAILED DESCRIPTION

[0020] To make the purpose, technical scheme and advantages of the embodiments of the application clearer, the technical scheme in the embodiments of the application will be described clearly and completely below in conjunction with the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0021] REFERENCE Figure 1 , Figure 2 and Figure 3A tunnel-type steel arch reinforcement structure includes a steel arch main body 1, a reinforcement bracket 2 is arranged inside the steel arch main body 1, and a reinforced concrete slab 24 is fixedly installed on the outer surface of the steel arch main body 1; the steel arch main body 1 is composed of a plurality of arch segments, and the plurality of arch segments are fixedly connected with bolts, wherein hydraulic rods are arranged at the joints of the plurality of arch segments for auxiliary connection support to improve the stability of the steel arch main body 1, and a rectangular connecting rod is installed on the rear side of the steel arch main body 1, so that the structural stability is increased after the two steel arch main bodies 1 are connected together, and the reinforcement bracket 2 is arranged to facilitate the subsequent support and reinforcement of the steel arch main body 1.

[0022] refer to Figure 1 、 Figure 2 and Figure 3 An L-shaped connecting plate 20 is fixedly installed on the front side of the steel arch frame body 1, and a plurality of positioning connecting pins 21 are installed in an array at equal intervals on the inner wall of the L-shaped connecting plate 20; through the provision of the L-shaped connecting plate 20 and the plurality of positioning connecting pins 21, it is convenient to position and connect multiple groups of steel arch frame bodies 1 together to form a whole, which is convenient for supporting and reinforcing the tunnel.

[0023] refer to Figure 1 、 Figure 2 and Figure 3 The inner wall surface of the steel arch frame main body 1 is fixedly installed with multiple vertical support rods 3, and the left and right sides of the multiple vertical support rods 3 are respectively fixedly installed with oblique support rods 4, and the bottom surfaces of the vertical support rods 3 and the oblique support rods 4 are fixedly installed with cross beams 5, and the bottom surfaces of the cross beams 5 are fixedly installed with multiple connecting brackets 6, and the bottom surfaces of the connecting brackets 6 are in contact with the top surface of the reinforcement bracket 2; through the arrangement of the vertical support rods 3, oblique support rods 4 and cross beams 5, it is convenient to support and reinforce the steel arch frame main body 1 near the top position of the interior, and through the arrangement of the bottom surfaces of the connecting brackets 6 in contact with the top surface of the reinforcement bracket 2, it is convenient to reinforce the steel arch frame main body 1.

[0024] refer to Figure 1 、 Figure 2 , the left and right sides of the reinforcement bracket 2 are respectively fixedly installed with an articulated bracket 7, the interior of the articulated bracket 7 is hinged with a hydraulic telescopic rod 8, the inner wall surface of the steel arch frame body 1 is fixedly installed with a reinforcement beam 9, and one side of the reinforcement beam 9 is fixedly installed with a hinged plate 10, and the end of the hydraulic telescopic rod 8 away from the articulated bracket 7 is hinged inside the hinged plate 10; through the provision of the hydraulic telescopic rod 8, it is convenient to further support and reinforce the steel arch frame body 1, so that the steel arch frame body 1 will not easily bend and deform when subjected to the pressure exerted by the tunnel.

[0025] refer to Figure 1 、 Figure 2 and Figure 4The bottom surface of the reinforcement bracket 2 is fixedly installed with a bottom bracket 11, and the left and right ends of the bottom bracket 11 are respectively fixedly installed with support blocks 12, and the bottom surface of the support block 12 is hinged with a mounting shell 13, and the internal rotation of the mounting shell 13 is connected to a roller 14, and the bottom surface of the bottom bracket 11 is evenly spaced in an array with multiple hydraulic cylinders 15, and the telescopic ends of the multiple hydraulic cylinders 15 are fixedly installed with rectangular support plates 16; the installation shell 13 is provided to facilitate the installation of the rollers 14, so that the rollers 14 can subsequently drive the steel arch frame body 1 to move when needed, and the hydraulic cylinders 15 and the rectangular support plates 16 are provided to facilitate the rectangular support plates 16 to contact the ground to provide auxiliary support for the reinforcement bracket 2, thereby improving its stability.

[0026] refer to Figure 1 、 Figure 2 and Figure 3 The left and right ends of the steel arch frame body 1 are respectively fixedly installed with bottom arch frame segments 17, and a hinged bracket 2 18 is fixedly installed on one side of the bottom arch frame segment 17. A hydraulic telescopic rod 2 19 is hinged inside the hinged bracket 2 18, and one end of the hydraulic telescopic rod 2 19 away from the bottom arch frame segment 17 is hinged inside the hinged bracket 1 7; through the provision of the bottom arch frame segment 17, it is convenient to support and reinforce the position near the bottom of the tunnel, and through the provision of the hydraulic telescopic rod 2 19, it is convenient for the reinforcement bracket 2 to support the bottom arch frame segment 17.

[0027] refer to Figure 1 、 Figure 2 and Figure 3 An I-shaped mounting block 22 is hinged on one side of the bottom arch frame segment 17, and a hydraulic cylinder 23 is fixedly installed on the bottom surface of the I-shaped mounting block 22; by setting the hinged I-shaped mounting block 22, it is convenient to adjust the angle of the hydraulic cylinder 23, so that the hydraulic cylinder 23 can support the bottom arch frame segment 17 at a suitable angle, thereby improving the stability of the bottom arch frame segment 17.

[0028] The implementation principle of the tunnel type steel arch reinforcement structure embodiment of the present application is as follows: the construction workers first install a steel arch frame body 1 composed of multiple arch frame segments in the tunnel, and connect the multiple steel arch frame bodies 1 to form a whole through L-shaped connecting plates 20 and positioning connecting pins 21, so as to support and reinforce the tunnel, ensure the stability of the tunnel structure, and prevent the occurrence of collapse accidents. At this time, the construction workers move the reinforcement bracket 2 to the bottom of the steel arch frame body 1, and then use the hydraulic cylinder 15 to lift the reinforcement bracket 2 upward. When the reinforcement bracket 2 rises, its top will contact the bottom of the connecting seat 6. At this time, through the vertical support rods 3, the oblique support rods 4, the cross beams 5 and the connecting rods The combination of the connecting seat 6 facilitates the reinforcement and support of the inner part of the steel arch frame body 1 near the middle. This operation is intended to improve the compressive resistance of the steel arch frame body 1 so that it can better withstand the pressure applied by the tunnel. The presence of the hydraulic telescopic rod 8 can further support and reinforce the steel arch frame body 1 to prevent its left and right sides from bending and deforming when under pressure. Through the provided reinforcement bracket 2 and the hydraulic rod installed on its side, the steel arch frame body 1 can be effectively supported and reinforced, the compressive resistance can be increased, and the stability of the tunnel can be improved. In actual operation, the length of the hydraulic telescopic rod can be adjusted as needed to adapt to the support requirements in different situations.

[0029] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A tunnel type steel arch reinforcement structure, comprising a steel arch main body (1), characterized in that: A reinforcement bracket (2) is provided inside the steel arch frame body (1), a plurality of vertical support rods (3) are fixedly installed on the inner wall surface of the steel arch frame body (1), and oblique support rods (4) are fixedly installed on the left and right sides of the plurality of vertical support rods (3), and a cross beam (5) is fixedly installed on the bottom surface of each of the vertical support rods (3) and the oblique support rods (4), a plurality of connecting brackets (6) are fixedly installed on the bottom surface of the cross beam (5), and the bottom surface of the connecting bracket (6) is in contact with the top surface of the reinforcement bracket (2), and an articulated bracket (7) is fixedly installed on the left and right sides of the reinforcement bracket (2), and a hydraulic telescopic rod (8) is hinged inside the articulated bracket (7), and a reinforcement beam (9) is fixedly installed on the inner wall surface of the steel arch frame body (1), and a hinged plate (10) is fixedly installed on one side of the reinforcement beam (9), and an end of the hydraulic telescopic rod (8) away from the articulated bracket (7) is hinged inside the hinged plate (10).

2. The tunnel steel arch reinforcement structure according to claim 1, characterized in that: A bottom bracket (11) is fixedly mounted on the bottom surface of the reinforcement bracket (2), support blocks (12) are fixedly mounted on the left and right ends of the bottom bracket (11), a mounting shell (13) is hingedly connected to the bottom surface of the support block (12), a roller (14) is rotatably connected to the inside of the mounting shell (13), and a plurality of hydraulic cylinders (15) are mounted in an array at equal intervals on the bottom surface of the bottom bracket (11), and a rectangular support plate (16) is fixedly mounted on the telescopic ends of the plurality of hydraulic cylinders (15).

3. The tunnel steel arch reinforcement structure according to claim 1, characterized in that: The left and right ends of the steel arch frame body (1) are respectively fixedly mounted with bottom arch frame segments (17), one side of the bottom arch frame segment (17) is fixedly mounted with a hinged bracket 2 (18), the interior of the hinged bracket 2 (18) is hinged with a hydraulic telescopic rod 2 (19), and the end of the hydraulic telescopic rod 2 (19) away from the bottom arch frame segment (17) is hinged inside the hinged bracket 1 (7).

4. The tunnel steel arch reinforcement structure according to claim 1, characterized in that: An L-shaped connecting plate (20) is fixedly mounted on the front side of the steel arch frame body (1), and a plurality of positioning connecting pins (21) are mounted in an array at equal intervals on the inner side wall of the L-shaped connecting plate (20).

5. The tunnel steel arch reinforcement structure according to claim 1, characterized in that: An I-shaped mounting block (22) is hingedly connected to one side of the bottom arch frame segment (17), and a second hydraulic cylinder (23) is fixedly mounted on the bottom surface of the I-shaped mounting block (22).

6. The tunnel steel arch reinforcement structure according to claim 1, characterized in that: A reinforced concrete slab (24) is fixedly installed on the outer surface of the steel arch frame body (1).

Images