Corrugated plate mounting device for existing tunnel

Abstract

The utility model relates to the technical field of corrugated plate sleeve lining construction, and discloses an existing tunnel corrugated plate installation device which comprises a supporting seat and a construction assembly, the construction assembly comprises a supporting mechanism, and the supporting mechanism comprises a fixed supporting rod and a movable supporting rod; the supporting seat can move up and down, one end of the fixed supporting rod is fixedly connected with the supporting seat, the other end of the fixed supporting rod is provided with a connecting part, the movable supporting rod is arranged below the connecting part, one end of the movable supporting rod is fixedly connected with the supporting seat, and the other end of the movable supporting rod is provided with a pushing part. The pushing part can slide in the direction away from the supporting base. The device can effectively improve the mounting efficiency of the corrugated plate at the top arc position of the tunnel in the existing tunnel disease treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated plate lining construction, and particularly relates to an installation device for corrugated plates in existing tunnels. Background Technique

[0002] The corrugated plate lining is an effective method for treating diseases such as cracking and chipping, crescent-shaped cracks, insufficient lining thickness, and waterproof board cutting of the secondary lining in the treatment of existing tunnel diseases. First, corrugated plates are installed on the inner wall of the tunnel disease position through bolts, and then grouting is carried out behind the corrugated plate lining, thereby realizing the reinforcement of the tunnel.

[0003] At present, when treating existing tunnel diseases, the installation of corrugated plates is usually completed by assembling small corrugated plates through bolts, which is cumbersome in operation and low in construction efficiency. Especially when installing corrugated plates at the top arc position of the tunnel, due to the high construction position, the interference of the catenary equipment position (a certain distance directly below the center of the top arc), and the difficulty of splicing the arc-shaped corrugated plates, the construction efficiency is further reduced. During the renovation process of existing tunnels, the skylight time is limited, and the existing construction method greatly affects the construction progress and prolongs the construction period. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an installation device for corrugated plates in existing tunnels, which can effectively improve the installation efficiency of corrugated plates at the top arc position of the tunnel during the treatment of existing tunnel diseases.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] An installation device for corrugated plates in existing tunnels includes a support seat and a construction component. The construction component includes a support mechanism, and the support mechanism includes a fixed support rod and a movable support rod; the support seat can move up and down. One end of the fixed support rod is fixedly connected to the support seat, and the other end of the fixed support rod is provided with a connecting part. The movable support rod is arranged below the connecting part. One end of the movable support rod is fixedly connected to the support seat, and the other end of the movable support rod is provided with a pushing part, and the pushing part can slide in a direction away from the support seat.

[0007] Furthermore, the construction component further includes a corrugated plate and a through pin. The corrugated plate is prefabricated according to the semi-arc shape of the top arc of the tunnel. The upper inner side of the corrugated plate is rotatably connected to the connecting part through the through pin, and the pushing part is adapted to the lower inner side of the corrugated plate.

[0008] Specifically, a roller is rotatably arranged on the connecting part, and the roller is in rolling fit with the lower inner side of the corrugated plate.

[0009] Specifically, the movable support rod is a multi-stage hydraulic cylinder. The cylinder barrel of the multi-stage hydraulic cylinder is horizontally installed on the support base, and the pushing part is arranged at the end of the piston rod of the multi-stage hydraulic cylinder.

[0010] Specifically, the construction assembly includes two of the support mechanisms. The two support mechanisms are arranged in parallel and opposite to each other, and the distance between the two support mechanisms is adapted to the width of the corrugated plate.

[0011] Furthermore, the construction assembly further includes a platform mechanism. The platform mechanism includes a construction platform, which is arranged between the two support mechanisms. The construction platform can move horizontally in a direction perpendicular to the corrugated plate and can move up and down in the vertical direction.

[0012] Specifically, the platform mechanism further includes a cross beam, a vertical beam, a horizontal push hydraulic cylinder, a lifting lead screw, and a lifting motor. The cross beam is horizontally arranged, the vertical beam is vertically arranged, one end of the cross beam is fixedly connected to the vertical beam, the cross beam is slidably connected to the support base, the horizontal push hydraulic cylinder is fixedly installed on the support base, the end of the piston rod of the horizontal push hydraulic cylinder is fixedly connected to the vertical beam, the lifting lead screw is vertically and rotatably arranged in the vertical beam, the lifting motor is used to drive the lifting lead screw to rotate, the construction platform is slidably connected to the vertical beam, and the construction platform is threadedly connected to the lifting lead screw.

[0013] Specifically, there are two of the construction assemblies, and the two construction assemblies are symmetrically arranged.

[0014] Preferably, it further includes an operation tunnel maintenance device. The operation tunnel maintenance device includes an excavator platform that can move on the railway in the tunnel. A boom and a pitching turntable are sequentially connected to the excavator platform, and the support base is installed on the pitching turntable.

[0015] The beneficial effects of the present utility model are:

[0016] The existing tunnel corrugated plate installation device includes a support base, a fixed strut, and a movable strut; the support base can move up and down, the fixed strut is fixedly installed on the support base, a connecting part is arranged at the end of the fixed strut, a pushing part is arranged at the end of the movable strut, and the pushing part is arranged below the connecting part and can slide away from the support base. Also, large-sized corrugated plates are prefabricated in advance according to the shape of the top arc semi-arc of the tunnel area to be constructed. During construction, first, the inner side of the upper part of the large-sized corrugated plate is rotatably connected to the connecting part through a pin. At this time, the corrugated plate hangs naturally, and its top opens outward to avoid the position of the catenary equipment in the tunnel; then, the support base is moved upward to drive the corrugated plate to rise so that the top of the corrugated plate crosses the position of the catenary equipment; then, the pushing part at the end of the movable strut slides forward, and after the pushing part contacts the lower part of the corrugated plate, it can push the corrugated plate to swing; then, the pushing part and the support base cooperate to make the corrugated plate close to fit the inner wall of the top arc semi-arc surface of the tunnel, which can facilitate the subsequent installation of the corrugated plate and the grouting construction process. Thus, through this existing tunnel corrugated plate installation device, the installation construction process of the corrugated plate on the inner wall of the top arc semi-arc surface of the tunnel can be conveniently and quickly completed, replacing the traditional form of assembling small corrugated plates. During installation, it can effectively avoid the position of the catenary equipment, greatly improve the construction efficiency, complete more construction progress during the skylight time, and thus greatly shorten the construction period. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of an existing tunnel corrugated plate installation device of the present utility model;

[0018] Figure 2 It is a schematic installation structure diagram of the lifting seat and the support mechanism in an existing tunnel corrugated plate installation device of the present utility model;

[0019] Figure 3 It is a schematic structural diagram of an existing tunnel corrugated plate installation device of the present utility model when hanging the corrugated plate;

[0020] Figure 4 It is a schematic structural diagram of an existing tunnel corrugated plate installation device of the present utility model when installing the corrugated plate;

[0021] Figure 5 It is a schematic structural diagram of the platform mechanism in an existing tunnel corrugated plate installation device of the present utility model;

[0022] Figure 6 It is a schematic diagram of the use state of an existing tunnel corrugated plate installation device of the present utility model during implementation;

[0023] In the figure, 1 - support base, 2 - fixed support rod, 3 - movable support rod, 4 - connecting part, 5 - pushing part, 6 - corrugated plate, 7 - pin, 8 - connecting block, 9 - roller, 10 - construction platform, 11 - cross beam, 12 - vertical beam, 13 - horizontal push hydraulic cylinder, 14 - lifting screw rod, 15 - lifting motor, 16 - excavator platform, 17 - boom, 18 - pitching turntable. Detailed implementation mode

[0024] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0025] As Figures 1 to 6 shown, a corrugated plate installation device for existing tunnels includes a support base 1 and a construction assembly. The support base 1 can be installed on an external lifting mechanism and move up and down in the vertical direction. The construction assembly includes a support mechanism. As Figure 2 shown, the support mechanism includes a fixed support rod 2 and a movable support rod 3. One end of the fixed support rod 2 is fixedly connected to the support base 1, and a connecting part 4 is arranged at the other end of the fixed support rod 2; the movable support rod 3 is arranged below the connecting part 4. One end of the movable support rod 3 is fixedly connected to the support base 1, and a pushing part 5 is arranged at the other end of the movable support rod 3. The pushing part 5 can slide in a direction away from the support base 1.

[0026] When the corrugated plate installation device for existing tunnels is in use, as Figure 3 、 Figure 4 shown, it is different from the existing installation form of splicing small corrugated plates. Instead, a prefabricated large corrugated plate 6 is directly installed. The corrugated plate 6 is prefabricated according to the semi-arc shape of the top arc of the area to be renovated in the tunnel. Through prefabrication, the shape of the corrugated plate 6 in the length direction is basically consistent with the shape of half of the top arc of the tunnel area to be renovated, and a connecting block 8 is arranged on the inner side of the upper part of the corrugated plate 6. During installation, the construction assembly further includes a pre-supplied corrugated plate 6 and a pin 7. Initially, the support base 1 descends to a lower position, and the connecting part 4 deviates from the tunnel axis by a set distance in the transverse direction (this transverse direction refers to the horizontal direction perpendicular to the tunnel axis). The construction process is as follows:

[0027] S1. In the form shown as Figure 3 shown, the connecting block 8 on the inner side of the upper part of the corrugated plate 6 is rotatably connected to the connecting part 4 through the pin 7. At this time, the corrugated plate 6 naturally sags under its own weight, causing the top end of the corrugated plate 6 to open outwards, and the top end of the corrugated plate 6 deviates laterally to a position that avoids the width of the overhead contact network equipment at the top of the tunnel;

[0028] S2. Raise the support base 1, drive the top end of the corrugated plate 6 to exceed the height position of the overhead contact network equipment and then approach the tunnel top surface;

[0029] S3. Extend the pushing part 5 of the movable push rod 3 outwards. After the end of the pushing part 5 contacts the inner side of the lower part of the corrugated plate 6, push the corrugated plate 6 to swing outwards. At this time, the lower part of the corrugated plate 6 opens outwards and approaches both sides of the tunnel, and the upper end of the corrugated plate 6 crosses above the catenary equipment and approaches the position directly above the tunnel axis;

[0030] S4. Coordinately adjust the lifting action of the support base 1 and the extending action of the pushing part 5 until it is adjusted to the installation state as shown in Figure 4 At this time, the corrugated plate 6 is close to the inner wall of the semi-circular arc of the tunnel roof;

[0031] S5. Drill a hole outwards from the inner side of the corrugated plate 6. The hole drills through the corrugated plate 6 and drills into the tunnel rock mass. Then, bolts can be inserted through the drilled hole to fix and install the corrugated plate 6 and to realize the grouting process on the outer side of the corrugated plate 6;

[0032] S7. Pull out the pin 7 to reset the pushing part 5 and the support base 1.

[0033] As can be seen from the above construction process, through this existing tunnel corrugated plate installation device, the installation process of the corrugated plate 6 on the semi-circular arc inner wall of the tunnel roof can be completed conveniently and quickly. It replaces the traditional form of assembling small corrugated plates, can effectively avoid the position of the catenary equipment during installation, and can greatly improve the construction efficiency and shorten the construction period.

[0034] Since the lower end of the corrugated plate 6 can be driven to swing outwards when the pushing part 5 withdraws outwards, there is relative movement between the inner side of the corrugated plate 6 and the end of the pushing part 5 at this time. To avoid wear and jamming, in specific implementation, as shown in Figure 2 As shown, a roller 9 is rotatably arranged on the connecting part 5. In addition, the width of the roller 9 is also adapted to the shape of the inner side of the lower part of the corrugated plate 6. When pushing the corrugated plate 6, the roller 9 is just located at the position between two adjacent corrugations of the corrugated plate 6. The roller 9 also limits the width of the corrugated plate 6, which is beneficial to ensuring the stable posture of the corrugated plate 6 during the process of being propped up.

[0035] Specifically, the above-mentioned movable support rod 3 can be selected as a multi-stage hydraulic cylinder. The cylinder barrel of the multi-stage hydraulic cylinder is horizontally installed on the support base 1, and the pushing part 5 is arranged at the end of the piston rod of the multi-stage hydraulic cylinder.

[0036] According to the foregoing, the construction assembly can complete the installation process of the corrugated plate 6 with only one support mechanism. However, considering the stability of the posture of the corrugated plate 6 during installation, the width of the corrugated plate 6 should not be too wide, that is, the construction distance along the axial direction of the tunnel each time is small, which also limits the construction efficiency. Therefore, in specific implementation, as shown in Figure 2As shown, the construction component includes two such support mechanisms. The two support mechanisms are arranged in parallel and opposite to each other. The distance between the two support mechanisms is adapted to the width of the corrugated plate 6. The corrugated plate 6 can be made wider, and the installation of the corrugated plate 6 over a longer distance along the tunnel axis can be completed during one construction, improving the overall construction efficiency.

[0037] Furthermore, as Figure 1 shown, the aforementioned construction component further includes a platform mechanism. The platform mechanism includes a construction platform 10. The construction platform 10 is arranged between the two support mechanisms. The construction platform 10 can move horizontally in the horizontal direction perpendicular to the corrugated plate 6 and can move up and down in the vertical direction. Construction workers can complete the fixed installation and grouting construction process described in the aforementioned step S5 on the construction platform 10. During implementation, the width of the construction platform 10 is adapted to the width of the corrugated plate 6 to facilitate the smooth construction of construction workers in the width direction of the corrugated plate 6; the construction platform 10 can move both horizontally and vertically to facilitate the adjustment of the position of the construction platform 10 according to the construction position on the corrugated plate 6.

[0038] During specific implementation, as Figure 1 、 Figure 5 shown, the above platform mechanism further includes a cross beam 11, a vertical beam 12, a horizontal push hydraulic cylinder 13, a lifting screw rod 14, and a lifting motor 15. The cross beam 11 is arranged horizontally, the vertical beam 12 is arranged vertically, and one end of the cross beam 11 is fixedly connected to the vertical beam 12. The cross beam 11 is slidably connected to the support base 1. The horizontal push hydraulic cylinder 13 is fixedly installed on the support base 1. The end of the piston rod of the horizontal push hydraulic cylinder 13 is fixedly connected to the vertical beam 12. The telescopic movement of the piston rod of the horizontal push hydraulic cylinder 13 can drive the vertical beam 12 to slide back and forth; the lifting screw rod 14 is vertically and rotatably arranged in the vertical beam 12. The lifting motor 15 is used to drive the lifting screw rod 14 to rotate. The construction platform 10 is slidably connected to the vertical beam 12. The construction platform 10 is threadedly connected to the lifting screw rod 14. The lifting screw rod 14 and the construction platform form a screw-nut mechanism. When the lifting screw rod 14 rotates, it can drive the construction platform 10 to slide up and down. When the lifting screw rod 14 stops rotating, the position of the construction platform 10 is self-locked. Thus, the horizontal and vertical position adjustment of the above construction platform 10 can be realized through the horizontal push hydraulic cylinder 13 and the lifting motor 15.

[0039] One such construction component is provided, which can quickly complete the installation construction process of the corrugated plate 6 on one semi-circular surface of the top arc of the tunnel. During specific implementation, two such construction components can also be provided. The two construction components are symmetrically arranged. Thus, the Figure 3 、 Figure 4 method can be used to realize the simultaneous installation construction of the corrugated plates 6 on the inner walls on both sides of the top arc of the tunnel, further improving the construction efficiency.

[0040] Further, the up-and-down lifting movement of the foregoing support base 1 can be achieved by being installed on a variety of external lifting mechanisms. When implementing this embodiment, as Figure 6 shown, it further includes an operating tunnel maintenance device (see Chinese Utility Model Patent, application number CN202122674096.8). This operating tunnel maintenance device includes an excavator platform 16 that can travel on the railway in the tunnel. A boom 17 and a pitching turntable 18 are sequentially connected to the excavator platform 16, and its specific structure will not be elaborated here too much. The support base 1 is installed on the pitching turntable 18. By the coordinated swinging of the boom 17 and the pitching turntable 18, the driving of the up-and-down lifting process of the support base 1 can be achieved. At the same time, when the excavator platform 16 travels on the railway track, its center line is basically perpendicular to the tunnel axis. During assembly, making the symmetry axes of the two construction components parallel to this center line can, along with the travel of the excavator platform 16, successively complete the installation construction of the corrugated plates 6 of the top arcs of each section of the tunnel in the straight section. And in the curved section area, it can also be directly adjusted by the rotation of the pitching turntable 18, which is convenient to operate.

[0041] The above are only the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the concept described herein through the above teachings or the techniques or knowledge in related fields. And the changes and alterations made by those skilled in the art that do not depart from the spirit and scope of the present invention should all be within the protection scope of the appended claims of the present invention.

Claims

1. A mounting device for corrugated plates in an existing tunnel, characterized in that, It includes a support base and a construction component. The construction component includes a support mechanism, and the support mechanism includes a fixed strut and a movable strut; The support base can move up and down, One end of the fixed strut is fixedly connected to the support base, and a connecting portion is provided at the other end of the fixed strut, The movable strut is arranged below the connecting portion. One end of the movable strut is fixedly connected to the support base, and a pushing portion is provided at the other end of the movable strut. The pushing portion can slide in a direction away from the support base.

2. The installation device for corrugated plates of an existing tunnel according to claim 1, wherein, The construction component further includes a corrugated plate and a pin. The corrugated plate is prefabricated according to the semi-arc shape of the tunnel top arc. The inner side of the upper part of the corrugated plate is rotatably connected to the connecting portion through the pin, and the pushing portion is adapted to the inner side of the lower part of the corrugated plate.

3. The installation device for corrugated plates of an existing tunnel according to claim 2, characterized in that, Rollers are rotatably arranged on the connecting portion, and the rollers are in rolling fit with the inner side of the lower part of the corrugated plate.

4. The installation device for corrugated plates of an existing tunnel according to claim 2, wherein, The movable strut is a multi-stage hydraulic cylinder. The cylinder barrel of the multi-stage hydraulic cylinder is horizontally installed on the support base, and the pushing portion is arranged at the end of the piston rod of the multi-stage hydraulic cylinder.

5. The installation device for corrugated plates of an existing tunnel according to claim 2, characterized in that, The construction component includes two such support mechanisms. The two support mechanisms are arranged in parallel and opposite to each other, and the distance between the two support mechanisms is adapted to the width of the corrugated plate.

6. The installation device for corrugated plates of an existing tunnel according to claim 5, characterized in that, The construction component further includes a platform mechanism. The platform mechanism includes a construction platform. The construction platform is arranged between the two support mechanisms, and the construction platform can move horizontally in a direction perpendicular to the corrugated plate and can move up and down in the vertical direction.

7. The installation device for corrugated plates of existing tunnels according to claim 6, characterized in that, The platform mechanism further includes a cross beam, a vertical beam, a horizontal push hydraulic cylinder, a lifting lead screw and a lifting motor; The cross beam is horizontally arranged, the vertical beam is vertically arranged, and one end of the cross beam is fixedly connected to the vertical beam, The cross beam is slidably connected to the support base. The horizontal push hydraulic cylinder is fixedly installed on the support base, and the end of the piston rod of the horizontal push hydraulic cylinder is fixedly connected to the vertical beam, The lifting lead screw is vertically and rotatably arranged in the vertical beam, and the lifting motor is used to drive the lifting lead screw to rotate, The construction platform is slidably connected to the vertical beam, and the construction platform is threadedly connected to the lifting lead screw.

8. A corrugated plate installation device for existing tunnels according to any one of claims 1 to 7, characterized in that There are two construction components, and the two construction components are symmetrically arranged.

9. The installation device for corrugated plates of an existing tunnel according to claim 8, wherein, It further includes an operating tunnel maintenance device. The operating tunnel maintenance device includes an excavator platform. The excavator platform can move on the railway of the tunnel. A boom and a pitching turntable are sequentially connected to the excavator platform, and the support base is installed on the pitching turntable.

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