Supporting arch frame for tunnel construction

Abstract

The utility model discloses a supporting arch frame for tunnel construction, and relates to the technical field of tunnel construction, the supporting arch frame comprises a first section, a second section and a third section, a hinge is fixedly arranged between every two adjacent fixing plates, one end of the third section is provided with a supporting leg in a clamping mode, and the other end of the third section is provided with a second section. Fixing boxes are fixedly arranged on the two sides of the first section, the two sides of the second section and the two sides of the third section correspondingly, and fixing mechanisms are arranged in the fixing boxes. The first section, the second section and the third section are pre-fixed through the hinges, so that during use, only the second section and the third section need to be completely unfolded and fixed through the first screws, splicing installation of the supporting arch frame body can be rapidly completed, and the supporting arch frame is convenient to assemble and disassemble. And a limiting frame in the fixing box is matched with a stop sliding block for use, so that the connecting rod is fixed, and the use strength of the two supporting lagging jacks is conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a support arch for tunnel construction. Background Art

[0002] Among many schemes for tunnel support construction, the construction of tunnel arches is the most important for tunnel safety. The tunnel arches themselves have a certain strength, can resist bending, and are relatively hard in texture. After the tunnel arches are constructed and formed, the working environment inside the tunnel will be significantly improved. Generally, a set of tunnel arches is assembled from multiple arch segments, and the arch segments are generally prefabricated in a factory according to the tunnel design dimensions. After the arch segments are prefabricated, they are transported to the site for assembly. When assembling at the construction site, multiple people need to cooperate to place the corresponding segments in the corresponding positions and then fix them. Therefore, in actual use, it is not only time-consuming and laborious, but also requires multiple people to work simultaneously.

[0003] Based on this, a support arch for tunnel construction is now provided to eliminate the drawbacks of existing devices. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a support arch for tunnel construction to solve the problem of inconvenient and rapid splicing in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A support arch for tunnel construction includes a first segment, a second segment and a third segment. Both ends of the first segment are connected with the second segments, and the other ends of the second segments are connected with the third segments. The first segment, the second segment and the third segment are fixedly connected through a connection component. The connection component includes a fixing plate. Fixing plates are fixedly arranged at both ends of the first segment, both ends of the second segment and one end of the third segment. A plurality of fixing holes are arranged on the fixing plates. Hinge hinges are fixedly arranged between two adjacent fixing plates. The first segment, the second segment and the third segment are combined into a support arch main body through the hinge hinges. Support feet are clamped at one end of the third segment. Fixing boxes are fixedly arranged on both sides of the first segment, the second segment and the third segment. A fixing mechanism for connecting a plurality of support arch main bodies is arranged inside the fixing boxes; Optical receiving and transmitting components are arranged on the first segment, the second segment and the third segment. The optical receiving and transmitting components are optically signal-connected with an optical detection component. The optical detection component is installed at the tail of the shield of the shield machine. A pressure detection component is fixedly arranged at the tail of the shield of the shield machine. The image acquisition area of the optical detection component is the lithofacies area behind the tail of the shield of the shield machine. Both the optical detection component and the pressure detection component are optically signal-connected with a controller. The output end of the controller is optically signal-connected with a display screen.

[0007] On the basis of the above technical solutions, the present utility model further provides the following optional technical solutions:

[0008] In an optional solution: The fixing mechanism includes a limiting frame and a connecting rod. The limiting frames are fixedly arranged inside the fixing box. Stop sliders are slidably arranged at both ends of the connecting rod. Push rods are fixedly arranged on one side of each stop slider. The push rods are slidably arranged inside the connecting rod. A sliding circular plate is fixedly arranged on the connecting rod. The sliding circular plate is slidably arranged in the installation groove inside the connecting rod. A return spring is fixedly arranged between one side of the installation groove and one side of the sliding circular plate. The edge of one side of the limiting frame is provided with a rounded corner. Limiting plates that are closely attached to one side of the limiting frame are arranged at both ends of the connecting rod.

[0009] In an optional solution: Dial plates are symmetrically arranged at one end of each push rod. Sliding grooves are arranged at the positions corresponding to the dial plates on the connecting rod.

[0010] In an optional solution: One side inside the fixing box is in the same plane as one side of the first section, the second section, and the third section.

[0011] In an optional solution: Cushion plates are fixedly arranged on one side of each fixing plate.

[0012] In an optional solution: A number of fixed stiffening plates are fixedly arranged on the support feet.

[0013] In an optional solution: A number of first adjustment holes are arranged on the support feet. A number of second adjustment holes are arranged at one end of each third section.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The support arch frame body of the present utility model is composed of one first section, two second sections, and two third sections, and the first section, the second section, and the third section are pre-fixed by hinge hinges. When in use, only the second section and the third section need to be fully unfolded and fixed by the first screw, so that the splicing and installation of the support arch frame body can be quickly completed. And by symmetrically arranging fixing boxes on the first section, the second section, and the third section, and the cooperation of the limiting frame and the stop slider inside the fixing box, the connecting rod is fixed, so that the use strength of two support arch frames is increased. And by arranging a push rod on one side of the stop slider, it is convenient to disassemble the connecting rod, so that the user can choose whether to use the connecting rod for fixing, thereby increasing the practicability of the tunnel construction support arch frame.

[0016] 2. The utility model can realize the timely exploration of the tail shield rock mass and support by setting an optical receiving and transmitting component, an optical detection component and a pressure detection component. Once deformation is found, adjustment can be quickly realized immediately, thereby improving the construction quality as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the utility model.

[0018] Figure 2 It is a schematic structural diagram of the main body of the support arch frame of the utility model.

[0019] Figure 3 It is a schematic diagram of the folded state of the main body of the support arch frame of the utility model.

[0020] Figure 4 It is a schematic diagram of the installation of the hinge hinge of the utility model.

[0021] Figure 5 It is a schematic structural diagram of the limit frame of the utility model.

[0022] Figure 6 It is a schematic structural diagram of the stop slider of the utility model.

[0023] Figure 7 It is a schematic structural diagram of the support foot of the utility model.

[0024] Figure 8 It is a schematic working diagram of the installation.

[0025] NOTES ON THE REFERENCE NUMERALS IN THE DRAWINGS: 11 the first section, 12 the second section, 13 the third section, 14 the fixing plate, 15 the hinge hinge, 16 the backing plate, 17 the support foot, 18 the fixing rib plate, 19 the fixing box, 20 the first adjustment hole, 21 the limit frame, 22 the stop slider, 23 the connecting rod, 24 the pushing rod, 25 the dialing plate, 26 the return spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the purpose, technical solutions and advantages of the utility model more clear and understandable, the following further describes the utility model in detail with reference to the drawings and embodiments.

[0027] In one embodiment, as Figures 1-7As shown in the figure, a support arch for tunnel construction includes a first section 11, a second section 12, and a third section 13. Both ends of the first section 11 are connected with the second section 12, and the other ends of the second section 12 are both connected with the third section 13. The first section 11, the second section 12, and the third section 13 are all fixedly connected through a connecting component. The connecting component includes a fixing plate 14. Fixing plates 14 are fixedly provided at both ends of the first section 11, both ends of the second section 12, and one end of the third section 13. A number of fixing holes are provided on the fixing plates 14. Hinge hinges 15 are fixedly provided between two adjacent fixing plates 14. The first section 11, the second section 12, and the third section 13 are combined into a support arch main body through the hinge hinges 15. Support feet 17 are snap-connected at one end of the third section 13. Fixing boxes 19 are fixedly provided on both sides of the first section 11, the second section 12, and the third section 13. A fixing mechanism for connecting a number of support arch main bodies is provided inside the fixing box 19, and the fixing mechanism facilitates increasing the stability effect between two adjacent support arches; Optical receiving and transmitting components are provided on the first section 11, the second section 12, and the third section 13. The optical receiving and transmitting components are optically signal-connected to an optical detection component to achieve the function of adjusting the support arch at any time according to the measurement results. The optical detection component is installed at the tail of the shield machine. A pressure detection component is fixedly provided at the tail of the shield machine. The image acquisition area of the optical detection component is the lithofacies area behind the tail of the shield machine. Both the optical detection component and the pressure detection component are optically signal-connected to the controller. The output end of the controller is optically signal-connected to the display screen. During the working process, the optical detection component detects the lithofacies properties of the shield tail, acquires pictures, determines the surrounding rock grade at that place, and then reflects it on the display screen. At the same time, the pressure detection component can detect the ground pressure. Workers determine the spacing of the support frames, the reinforcement schemes such as the hinge support connection scheme, etc. according to the strength of the surrounding rock grade. Further, computer operation can be used to give a recommended lapping scheme, or manual or electric methods can be used to complete the auxiliary lapping and auxiliary adjustment.

[0028] The fixing mechanism includes a limiting frame 21 and a connecting rod 23. The limiting frames 21 are fixedly arranged inside the fixing boxes 19. At both ends of the connecting rod 23, stop sliders 22 are slidably arranged. On one side of each stop slider 22, a pushing rod 24 is fixedly arranged. The pushing rods 24 are slidably arranged inside the connecting rod 23. A sliding circular plate is fixedly arranged on the connecting rod 23. The sliding circular plate is slidably arranged in the installation groove inside the connecting rod 23. A return spring 26 is fixedly arranged between one side of the installation groove and one side of the sliding circular plate. The edge of one side of the limiting frame 21 is arranged with a rounded corner. At both ends of the connecting rod 23, limiting plates are arranged which are closely attached to one side of the limiting frame 21. When in use, when a number of support arch frame bodies need to be installed inside the tunnel, the second section 12 and the third section 13 are fully unfolded. Subsequently, the connections at both ends of the second section 12 are fixed by the first screws. Then, the support arch frame bodies are installed one by one. If the connection between two adjacent support arch frame bodies needs to be increased, after one support arch frame body is installed, the remaining support arch frame bodies are installed one by one according to the length of the connecting rod 23. Subsequently, both ends of the connecting rod 23 are respectively closely attached to one side inside the two fixing boxes 19. The connecting rod 23 is pushed to move, so that the rounded corner at one side of the limiting frame 21 guides the stop slider 22, enabling the stop slider 22 to slide on the connecting rod 23. When the stop slider 22 disengages from the limiting frame 21, under the action of the return spring 26, the stop slider 22 returns to the initial position, and at the same time, one side of the stop slider 22 is closely attached to the limiting frame 21 once, thereby fixing the connecting rod 23.

[0029] On one end of each pushing rod 24, a dial 25 is symmetrically arranged. On the connecting rod 23, sliding grooves are arranged at positions corresponding to the dials 25. When in use, when the connecting rod 23 needs to be removed, the stop slider 22 can be pulled to move through the dial 25, so that the stop slider 22 disengages from the limiting frame 21, and thus the connecting rod 23 can be removed.

[0030] One side inside the fixing box 19 is in the same plane as one side of the first section 11, the second section 12, and the third section 13. When in use, it is convenient to install the connecting rod 23.

[0031] On one side of each fixing plate 14, a cushion plate 16 is fixedly arranged. When in use, it is convenient to support the fixing plate 14 when the two fixing plates 14 are closely attached, preventing damage to the hinge 15.

[0032] On the support feet 17, a number of fixed rib plates 18 are fixedly arranged. When in use, it is convenient to increase the working strength of the support feet 17 during use.

[0033] On the support feet 17, a number of first adjustment holes 20 are arranged. At one end of each third section 13, a number of second adjustment holes are arranged. When in use, it is convenient to adjust the use length of the support feet 17 according to the flatness of the ground at the installation position of the support feet 17.

[0034] The above embodiment discloses a support arch for tunnel construction. When a number of support arch main bodies need to be installed inside the tunnel, the second section 12 and the third section 13 are fully unfolded. Subsequently, the two ends of the second section 12 are fixed by the first screw. The support feet 17 are installed at one end of the third section 13 by the second screw. Then, the support arch main bodies are installed one by one. If it is necessary to increase the connection between two adjacent support arch main bodies, after one support arch main body is installed, the remaining support arch main bodies are installed one by one according to the length of the connecting rod 23. Subsequently, both ends of the connecting rod 23 are respectively pressed against one side inside the two fixed boxes 19. The connecting rod 23 is pushed to move, so that the rounded part on one side of the limit frame 21 guides the stop slider 22, enabling the stop slider 22 to slide on the connecting rod 23. When the stop slider 22 disengages from the limit frame 21, under the action of the return spring 26, the stop slider 22 returns to its initial position, and at the same time, one side of the stop slider 22 is pressed against the limit frame 21 once, thereby fixing the connecting rod 23. When it is necessary to remove the connecting rod 23, the stop slider 22 can be pulled to move by the dial 25, so that the stop slider 22 disengages from the limit frame 21, and thus the connecting rod 23 can be removed. It should be noted that in this application, the optical receiving and transmitting components, optical detection components, pressure detection components, shield machine, controller, and display screen all adopt existing components. The installation position of the optical receiving and transmitting components is not shown in the figure and can be selected according to actual use.

[0035] The above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed in this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A support arch frame for tunnel construction, comprising a first segment (11), a second segment (12) and a third segment (13), wherein both ends of the first segment (11) are connected to the second segment (12), and the other end of the second segment (12) is connected to the third segment (13), and the first segment (11), the second segment (12) and the third segment (13) are fixedly connected by a connecting assembly, wherein the connecting assembly comprises a fixing plate (14), and both ends of the first segment (11), both ends of the second segment (12) and one end of the third segment (13) are fixedly provided with the fixing plate (14), and the fixing plate (14) is provided with a plurality of fixing holes, characterized in that: A hinge (15) is fixedly provided between two adjacent fixing plates (14); the first segment (11), the second segment (12) and the third segment (13) are combined into a supporting arch frame body through the hinge (15); a supporting foot (17) is clamped at one end of the third segment (13); fixing boxes (19) are fixedly provided on both sides of the first segment (11), the second segment (12) and the third segment (13); a fixing mechanism for connecting a plurality of supporting arch frame bodies is provided inside the fixing box (19); optical receiving and transmitting components are provided on the first segment (11), the second segment (12) and the third segment (13); an optical receiving and transmitting component is optically connected to an optical detection component; the optical detection component is installed at the shield tail of the shield machine; a pressure detection component is fixedly provided at the shield tail of the shield machine; an image acquisition area of ​​the optical detection component is a lithofacies area behind the shield tail of the shield machine; the optical detection component and the pressure detection component are both optically connected to a controller; and an output end of the controller is optically connected to a display screen.

2. A tunnel construction support arch according to claim 1, characterized in that: The fixing mechanism comprises a limit frame (21) and a connecting rod (23); the limit frame (21) is fixedly provided inside the fixing box (19); stop sliders (22) are slidably provided at both ends of the connecting rod (23); a push rod (24) is fixedly provided on one side of the stop slider (22); the push rod (24) is slidably provided inside the connecting rod (23); a sliding circular plate is fixedly provided on the connecting rod (23); the sliding circular plate is slidably provided in an installation groove inside the connecting rod (23); a return spring (26) is fixedly provided between one side of the installation groove and one side of the sliding circular plate; one side edge of the limit frame (21) is chamfered; and both ends of the connecting rod (23) are provided with a limit plate which is closely arranged with one side of the limit frame (21).

3. A tunnel construction support arch according to claim 2, characterized in that: A shift plate (25) is symmetrically provided at one end of the push rod (24), and a sliding groove is provided on the connecting rod (23) at a position corresponding to the shift plate (25).

4. A tunnel construction support arch according to claim 2, characterized in that: One side of the interior of the fixed box (19) is in the same plane as one side of the first segment (11), the second segment (12) and the third segment (13).

5. A tunnel construction support arch according to claim 1, characterized in that: A pad (16) is fixedly provided on one side of the fixing plate (14).

6. A tunnel construction support arch according to claim 1, characterized in that: A plurality of fixed ribs (18) are fixedly provided on the support foot (17).

7. A tunnel construction support arch according to claim 1, characterized in that: The supporting foot (17) is provided with a plurality of first adjustment holes (20), and one end of the third segment (13) is provided with a plurality of second adjustment holes.

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