Spraying maintenance trolley for maintaining ultra-thick lining internal mold of open cut tunnel

Abstract

The utility model belongs to the technical field of tunnel construction, and provides a spraying maintenance trolley for open-cut tunnel ultra-thick lining inner mold maintenance, which comprises a portal frame and a spraying pipe frame, the portal frame walks along the length direction of a tunnel, and workbenches on the left side and the right side of the portal frame extend towards the length direction of the tunnel to form guide plates. The workbench above the middle of the portal is supported through stand columns, a water tank is placed in the center of the top of the portal, and a water outlet pipe and a water inlet pipe are arranged on the two sides of the water tank respectively. The spraying pipe frame comprises at least three arc-shaped pipes and telescopic pipes, wherein the arc-shaped pipes are distributed at equal intervals in the length direction of the tunnel. During the process of spraying concrete of the tunnel lining, the spraying maintenance operation of the whole tunnel lining can be realized without moving the maintenance trolley back and forth along the length direction of the tunnel, so that the power consumption is greatly reduced, the maintenance cost is saved, and the maintenance efficiency is improved. And in addition, enough placing and working activity space can be provided for other construction equipment in the same tunnel, the practicability is high, and the using effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel construction, and in particular relates to a spray curing trolley for curing an inner mould of an ultra-thick lining of an open-cut tunnel. Background Art

[0002] After the tunnel lining is poured, in order to promote cement hydration, appropriate concrete curing measures will be taken to give the concrete appropriate temperature and humidity to ensure that the concrete has suitable hardening conditions so that its strength continues to increase.

[0003] At present, the construction site usually adopts the method of spraying water to maintain the poured concrete of the tunnel lining, that is, water pipes are arranged above the trolley according to the curvature of the tunnel lining, and then the water pipes are controlled by a water pump to spray the concrete of the tunnel lining for maintenance, and the spraying needs to be continued for a period of time to ensure that the newly poured concrete has enough time to harden. During this period, due to the limited space in the tunnel, the design length of the maintenance trolley generally cannot reach the length of the entire page. Therefore, the maintenance trolley needs to move back and forth along the length of the tunnel so that the upper spray pipe can fully maintain the entire tunnel lining. This method consumes a lot of power, increases the construction cost, and requires sufficient activity space to be reserved for the maintenance trolley in advance, resulting in the placement of other tunnel construction equipment and working space being restricted, and the use effect is not good.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The purpose of the utility model is to overcome the problems that the tunnel lining maintenance trolley in the above-mentioned prior art has high power consumption during operation, increases construction costs, occupies a large space in the tunnel, resulting in restrictions on the placement of other tunnel construction equipment and working space, and to provide a spray maintenance trolley for the maintenance of ultra-thick lining inner molds in open-cut tunnels.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A spray curing trolley for curing inner molds of super-thick linings in open-cut tunnels, comprising: a gantry and a spray pipe rack, the gantry moves along the length direction of the tunnel, the workbenches on the left and right sides of the gantry are both provided with guide plates extending in the length direction of the tunnel, the workbench above the middle of the gantry is supported by columns, and a water tank is placed in the center of the top of the gantry, and a water outlet pipe and a water inlet pipe are respectively provided on both sides of the water tank; the spray pipe rack comprises: an arc tube and a telescopic tube, at least three of the arc tubes are equidistantly distributed along the length direction of the tunnel, wherein the two ends of the arc tube in the middle are respectively fixed to the workbenches on the left and right sides of the gantry, and the middle part of the arc tube in the middle is fixed to the workbench above the middle of the gantry. A support is provided between the two arc-shaped tubes, and groove plates are provided at the ends of the other two arc-shaped tubes, and the groove plates are sleeved on the outside of the corresponding guide plates and slide along the length direction of the guide plates; the length direction of the telescopic tube is consistent with the length direction of the tunnel, and a plurality of telescopic tubes are evenly distributed along the extension direction of the arc-shaped tube, and the telescopic tube is divided into a main tube and two sections of auxiliary tubes, the middle part of the main tube is connected with the middle arc-shaped tube, and the ends of the two sections of the auxiliary tubes that are far away from each other are respectively connected with the other two arc-shaped tubes, and the ends of the two sections of the auxiliary tubes that are close to each other are both located inside the main tube, and the surface of the part of the auxiliary tube located inside the main tube has a plurality of water spraying surfaces facing the tunnel lining evenly distributed along the axial direction.

[0008] In the spray curing trolley for curing the inner mold of the super-thick lining of the open-cut tunnel as described above, preferably, casters driven by electricity are provided at the bottom of both sides of the portal;

[0009] A ladder is provided between the workbenches on the left and right sides of the gantry and the workbenches above the middle of the gantry;

[0010] Ladders are also provided between the workbenches on the left and right sides of the portal and the tunnel floor.

[0011] Preferably, one end of the water outlet pipe is connected to the bottom of one side of the water tank, and the other end of the water outlet pipe is connected to the arc-shaped pipe in the middle;

[0012] One end of the water inlet pipe is connected to the top of one side of the water tank, and the other end of the water inlet pipe extends to the tunnel ground.

[0013] Preferably, water pumps are provided in the middle sections of the water outlet pipe and the water inlet pipe, and the two water pumps are respectively located on the side of the column and the lower surface of the portal top plate.

[0014] Preferably, the water spray surface is formed by gathering a plurality of water spray holes;

[0015] A plurality of spray nozzles facing the tunnel lining are evenly distributed outside the arc pipe and the main pipe.

[0016] Preferably, both ends of the workbench above the middle of the portal frame have guide rails extending in the length direction of the tunnel;

[0017] A reciprocating screw is arranged parallel to the guide rail, and a rail seat on the guide rail is threadedly sleeved on the outside of the reciprocating screw.

[0018] Preferably, one end of the reciprocating screw is transmission-connected to a motor, and the motor is fixed on a workbench above the middle of the gantry;

[0019] A connecting rod is provided on the top of the rail seat, and the rail seat is connected with the corresponding arc-shaped tube through the connecting rod.

[0020] Preferably, the lengths of the guide rail and the guide plate are not less than the length of the portion of the secondary pipe located inside the primary pipe.

[0021] Preferably, an annular stopper is protrudingly provided on the inner pipe wall of the main pipe near the pipe opening, and the outer diameter of the auxiliary pipe matches the inner diameter of the annular stopper;

[0022] A sealing ring is arranged at the pipe opening of the inner pipe wall of the main pipe.

[0023] Preferably, a limiting rubber ring is sleeved on the outside of one end of the auxiliary pipe located inside the main pipe;

[0024] The outer diameter of the limiting rubber ring matches the inner diameter of the main pipe.

[0025] Beneficial effects: During the concrete spraying of the tunnel lining, the utility model can realize the spraying maintenance operation of the entire tunnel lining without the need for the maintenance trolley to move back and forth along the length direction of the tunnel, thereby greatly reducing power consumption and saving maintenance costs, and can also provide sufficient placement and working space for other construction equipment in the same tunnel, with strong practicality and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0027] Figure 1 It is a main schematic diagram of the utility model in actual application state;

[0028] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 3 It is an overall schematic diagram of the spray pipe rack structure of the utility model;

[0030] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0031] Figure 5 It is a cross-sectional schematic diagram of a partial telescopic rod structure of the utility model;

[0032] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0033] Figure 7 for Figure 5 Enlarged view of point D in the middle.

[0034] In the figure: 1. door frame; 2. guide plate; 3. column; 4. water tank; 5. outlet pipe; 6. inlet pipe; 7. arc pipe; 8. support; 9. trough plate; 10. main pipe; 11. auxiliary pipe; 12. caster; 13. ladder; 14. water pump; 15. water spray hole; 16. spray nozzle; 17. guide rail; 18. reciprocating screw; 19. rail seat; 20. motor; 21. annular limit platform; 22. sealing ring; 23. limit rubber ring; 24. connecting rod. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0036] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0038] Embodiment: This embodiment aims to provide a spray curing trolley for curing the inner mold of the super-thick lining of an open-cut tunnel. Its main function is that it can realize the spray curing operation of the entire tunnel lining without the need for the curing trolley to move back and forth along the length direction of the tunnel, and it can also provide sufficient placement and working space for other construction equipment in the same tunnel.

[0039] Reference Figure 1 , including: a gantry 1 and a spray pipe rack. The bottom of both sides of the gantry 1 are provided with casters 12 driven by a motor, which is the same as the walking method of a common platform, so that the gantry 1 can walk along the length of the tunnel. A ladder 13 is provided between the workbenches on the left and right sides of the gantry 1 and the workbenches above the middle of the gantry 1. Correspondingly, a ladder 13 is also provided between the workbenches on the left and right sides of the gantry 1 and the tunnel ground. If there are multiple layers of the side workbenches, each layer is also passed through by the ladder 13; the workbench above the middle of the gantry 1 is supported by two left and right (or more) columns 3, and the gantry 1 is placed at the top center of the gantry 1, and an outlet pipe 5 and an inlet pipe 6 are respectively arranged on both sides of the water tank 4, one end of the outlet pipe 5 is connected to the left bottom of the water tank 4, and the other end of the outlet pipe 5 is communicated with the pipeline in the middle position of the spray pipe rack, one end of the inlet pipe 6 is connected to the right top of the water tank 4, and the other end of the inlet pipe 6 extends to the tunnel ground. The middle sections of the outlet pipe 5 and the inlet pipe 6 are both provided with a water pump 14, the water pump 14 of the outlet pipe 5 is fixed on the left column 3, and the water pump 14 of the inlet pipe 6 is fixed to the lower surface of the top plate of the gantry 1, wherein one end of the inlet pipe 6 is extended to the tunnel ground to facilitate the addition of water to the water tank 4.

[0040] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The spray pipe rack includes: an arc tube 7 and a telescopic tube. The curvature of the arc tube 7 is preferably consistent with the curvature of the tunnel lining. There are at least three arc tubes 7 distributed equidistantly along the length direction of the tunnel, and the two ends of the middle arc tube 7 are respectively fixed to the workbenches on the left and right sides of the portal frame 1. At the same time, a support 8 is provided between the part of the middle arc tube 7 and the workbench above the middle part of the portal frame 1. The support 8 ensures the stability of the middle part of the arc tube 7 to prevent the middle part from being suspended in the air; the ends of the other two arc tubes 7 are provided with groove plates 9, and the initial states of the other two arc tubes 7 are basically aligned with the two ends of the side workbenches of the portal frame 1, and the two ends of the workbenches on the left and right sides of the portal frame 1 are extended with guide plates 2 in the length direction of the tunnel. The groove plates 9 are sleeved on the outside of the corresponding guide plates 2 to make them slide in a directional manner along the length direction of the guide plates 2, thereby ensuring that the other two arc tubes 7 can be stably displaced.

[0041] Reference Figure 3 , Figure 5 and Figure 6The length direction of the telescopic pipe is consistent with the length direction of the tunnel, and there are multiple telescopic pipes equidistantly distributed along the extension direction of the arc pipe 7. The telescopic pipe is divided into a main pipe 10 and two sections of auxiliary pipes 11. The middle part of the main pipe 10 is connected with the middle arc pipe 7, and the ends of the two sections of auxiliary pipes 11 that are far away from each other are respectively connected with the other two arc pipes 7 mentioned above. The ends of the two sections of auxiliary pipes 11 that are close to each other are both located inside the main pipe 10, and the surface of the part of the auxiliary pipe 11 located inside the main pipe 10 is equidistantly distributed along the axial direction. Multiple water spraying surfaces facing the tunnel lining are formed by gathering multiple water spraying holes 15. Multiple spray nozzles 16 facing the tunnel lining are equidistantly distributed outside the arc pipe 7 and the main pipe 10, and spray nozzles 16 facing the tunnel lining are also provided at the ends of the two sections of auxiliary pipes 11 that are far away from each other, that is, the ends of the two sections of auxiliary pipes 11 exposed from the main pipe 10.

[0042] Reference Figure 1 , Figure 3 , Figure 5 and Figure 6 , both ends of the workbench above the middle of the gantry 1 extend in the length direction of the tunnel with guide rails 17, and a reciprocating screw 18 is arranged above the guide rail 17 in parallel, and a rail seat 19 on the guide rail 17 is threadedly mounted on the outside of the reciprocating screw 18, and one end of the reciprocating screw 18 is connected to a motor 20 for transmission, and the motor 20 is fixed on the workbench above the middle of the gantry 1, and a connecting rod 24 is vertically fixed on the top of the rail seat 19, and the upper end of the connecting rod 24 is fixed to the corresponding arc tube 7, which refers to the other two arc tubes 7 mentioned above. The purpose of this setting is the rail When the seat 19 slides along the guide rail 17 driven by the reciprocating screw 18, the corresponding arc tube 7 above can be driven to move through the rail seat 19, and the auxiliary tube 11 connected to the arc tube 7 will be synchronously displaced therewith, that is, part of the auxiliary tube 11 located in the main tube 10 is pulled out through the displacement of the arc tube 7, so that the telescopic tube can be extended, and the water spray holes 15 on the surface of the auxiliary tube 11 are completely exposed to the outside of the main tube 10. When the telescopic tube reaches the maximum length, the water pump 14 in the middle section of the water outlet pipe 5 is started to transport water to the pipeline of the spray pipe rack.

[0043] In this embodiment, the length of the guide rail 17 and the guide plate 2 is not less than the length of the portion of the secondary pipe 11 located inside the primary pipe 10, so as to avoid the insufficient length of the guide rail 17 or the guide plate 2 affecting the maximum length of the telescopic pipe.

[0044] In this embodiment, refer to Figure 5 , Figure 6 and Figure 7, an annular stopper 21 is convexly provided on the inner tube wall of the main tube 10 near the tube mouth, and the outer diameter of the auxiliary tube 11 matches the inner diameter of the annular stopper 21. The annular stopper 21 can prevent the auxiliary tube 11 from falling off from the main tube 10 when the telescopic tube reaches the maximum length; wherein, a sealing ring 22 is provided at the tube mouth of the inner tube wall of the main tube 10, and the sealing ring 22 prevents water leakage from the outer port of the annular stopper 21; a limiting rubber ring 23 is sleeved on the outer side of one end of the auxiliary tube 11 located inside the main tube 10, and the outer diameter of the limiting rubber ring 23 matches the inner diameter of the main tube 10. The limiting rubber ring 23 cooperates with the annular stopper 21 to ensure that the auxiliary tube 11 will not be separated from the main tube 10. At the same time, when the limiting rubber ring 23 contacts the annular stopper 21, the limiting rubber ring 23 can also seal the inner port of the annular stopper 21, further ensuring that the outer port of the annular stopper 21 will not leak.

[0045] In actual use, the maintenance trolley is first moved to the center of the concrete poured in the tunnel lining, and then the motor 20 is started to drive the reciprocating screw 18 to rotate, and the reciprocating screw 18 drives the rail seat 19 to move in the direction away from the trolley, and then the rail seat 19 drives the corresponding arc tube 7 above to move synchronously. When the arc tube 7 and the rail seat 19 move synchronously in the direction away from the trolley, the arc tube 7 will generate a pulling force on the outer end of the auxiliary tube 11, so that the end of the auxiliary tube 11 inside the main tube 10 gradually slides toward the end of the main tube 10 The auxiliary pipe 11 moves until the limiting rubber ring 23 sleeved on the inner end of the auxiliary pipe 11 contacts the inner end of the annular limiting platform 21. At this time, the telescopic pipe reaches the maximum length, thereby expanding the spraying area of ​​the spray pipe rack. Finally, the water pump 14 in the middle section of the water outlet pipe 5 can be used to transport water to the pipeline of the spray pipe rack. The water will be ejected from the arc pipe 7 and the spray nozzle 16 and the water spray hole 15 of the telescopic pipe to the concrete poured in the tunnel lining, so that the maintenance trolley can spray and maintain the concrete poured in the entire tunnel lining without moving back and forth.

[0046] During the period when the maintenance trolley provided in the present embodiment sprays concrete on the tunnel lining, the maintenance trolley itself does not need to move back and forth along the length direction of the tunnel, and the spraying maintenance operation of the entire tunnel lining can be achieved, thereby greatly reducing power consumption and saving maintenance costs, and can also provide sufficient placement and working space for other construction equipment in the same tunnel, with strong practicality and good use effect. In addition, the length of the spray pipe rack in the present embodiment can be freely controlled to be shortened and extended, so that the spray pipe rack is easy to transport and store. Based on this, in actual application, the spray pipe rack can be bolted to the trolley, so that when the tunnel lining does not need maintenance, the spray pipe rack can be removed from the trolley for temporary storage. If there are slight defects in the appearance of the tunnel lining after pouring, the trolley can also be used as a temporary work platform to repair the defective concrete surface, which greatly improves the practicality of the maintenance trolley.

[0047] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A spray curing trolley for curing the inner mold of super-thick lining in an open-cut tunnel, characterized in that: include: The gantry moves along the length direction of the tunnel. The workbenches on the left and right sides of the gantry are both provided with guide plates extending in the length direction of the tunnel. The workbench above the middle of the gantry is supported by columns. A water tank is placed in the center of the top of the gantry. A water outlet pipe and a water inlet pipe are provided on both sides of the water tank. A spray pipe rack, comprising: an arc-shaped pipe and a telescopic pipe, wherein at least three arc-shaped pipes are equally spaced along the length direction of the tunnel, wherein the two ends of the arc-shaped pipe located in the middle are respectively fixed to the workbenches on the left and right sides of the portal frame, a support is provided between the middle of the arc-shaped pipe located in the middle and the workbench above the middle of the portal frame, and the ends of the other two arc-shaped pipes are provided with groove plates, which are sleeved on the outside of the corresponding guide plates and slide along the length direction of the guide plates; The length direction of the telescopic pipe is consistent with the length direction of the tunnel, and a plurality of the telescopic pipes are evenly distributed along the extension direction of the arc-shaped pipe. The telescopic pipe is divided into a main pipe and two sections of auxiliary pipes. The middle part of the main pipe is connected with the middle arc-shaped pipe, and the ends of the two sections of the auxiliary pipes that are far away from each other are respectively connected with the other two arc-shaped pipes. The ends of the two sections of the auxiliary pipes that are close to each other are both located inside the main pipe, and the surface of the part of the auxiliary pipe located inside the main pipe has a plurality of water spraying surfaces facing the tunnel lining evenly distributed along the axial direction.

2. The spray curing trolley for curing the inner mold of the super-thick lining of the open-cut tunnel according to claim 1 is characterized in that: The bottom of both sides of the door frame are provided with casters driven by electricity; A ladder is provided between the workbenches on the left and right sides of the gantry and the workbenches above the middle of the gantry; Ladders are also provided between the workbenches on the left and right sides of the portal and the tunnel floor.

3. The spray curing trolley for curing the inner mold of the super-thick lining of the open-cut tunnel according to claim 1 is characterized in that: One end of the water outlet pipe is connected to the bottom of one side of the water tank, and the other end of the water outlet pipe is connected to the arc-shaped pipe in the middle; One end of the water inlet pipe is connected to the top of one side of the water tank, and the other end of the water inlet pipe extends to the tunnel ground.

4. The spray curing trolley for curing the inner mold of the super-thick lining of the open-cut tunnel according to claim 3 is characterized in that: The middle sections of the water outlet pipe and the water inlet pipe are both provided with water pumps, and the two water pumps are respectively located on the side surface of the column and the lower surface of the door frame top plate.

5. The spray curing trolley for curing the inner mold of the super-thick lining of the open-cut tunnel according to claim 1 is characterized in that: The water spray surface is formed by a plurality of water spray holes; A plurality of spray nozzles facing the tunnel lining are evenly distributed outside the arc pipe and the main pipe.

6. The spray curing trolley for curing the inner mold of the super-thick lining of the open-cut tunnel according to claim 1 is characterized in that: Both ends of the workbench above the middle of the portal frame are provided with guide rails extending in the length direction of the tunnel; A reciprocating screw is arranged parallel to the guide rail, and a rail seat on the guide rail is threadedly sleeved on the outside of the reciprocating screw.

7. The spray curing trolley for curing the inner mold of the super-thick lining of the open-cut tunnel according to claim 6 is characterized in that: One end of the reciprocating screw is transmission-connected to a motor, and the motor is fixed on a workbench above the middle of the gantry; A connecting rod is provided on the top of the rail seat, and the rail seat is connected with the corresponding arc-shaped tube through the connecting rod.

8. The spray curing trolley for curing the inner mold of the super-thick lining of the open-cut tunnel according to claim 7 is characterized in that: The lengths of the guide rail and the guide plate are not less than the length of the portion of the secondary pipe located inside the primary pipe.

9. The spray curing trolley for curing the inner mold of the super-thick lining of the open-cut tunnel according to claim 1 is characterized in that: An annular stopper is protrudingly provided on the inner pipe wall of the main pipe near the pipe opening, and the outer diameter of the auxiliary pipe matches the inner diameter of the annular stopper; A sealing ring is arranged at the pipe opening of the inner pipe wall of the main pipe.

10. The spray curing trolley for curing the inner mold of the super-thick lining of the open-cut tunnel according to claim 1 is characterized in that: A limiting rubber ring is sleeved on the outer side of one end of the auxiliary pipe located inside the main pipe; The outer diameter of the limiting rubber ring matches the inner diameter of the main pipe.

Images