A device and method for casting-in-place concrete for both sides of a precast tunnel lane.

Abstract

This invention discloses a concrete pouring device and method for cast-in-place lanes on both sides of a precast tunnel roadway. The device includes a frame mechanism and a concrete pump mounted on the frame mechanism. A side guide wheel mechanism is hinged vertically to one side wall of the concrete pump. The method involves placing the cast-in-place lane concrete pouring device in the gap area on both sides of the precast tunnel roadway, with the side guide wheel mechanism contacting the side wall of the precast roadway. A concrete mixer truck transports concrete from the precast roadway (which has reached the required hardness standard) to the cast-in-place lane concrete pouring device. By moving the device along its length within the gap area on both sides of the precast tunnel roadway, concrete is poured to form the cast-in-place roadway. This invention can extend the concrete pouring distance of the cast-in-place lane, improve pouring efficiency, and shorten the cycle of the tunnel's internal road structure and the overall tunnel project.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to a device and method for pouring cast-in-place concrete for both sides of a precast tunnel lane. Background Technology

[0002] In the construction of shield tunnels, in order to shorten the construction period, a construction method is often adopted to carry out shield tunneling and internal road structure construction simultaneously. Precast roadway components such as tunnel entrance components and π-shaped components are first installed in the center of the tunnel. Then, concrete is poured on-site in the gap area between the precast roadway and the inner wall of the tunnel to form cast-in-place roadway, so as to form an internal road structure in the tunnel composed of precast roadway and cast-in-place roadway. When precast concrete lanes are used by concrete mixer trucks, precast concrete transport trucks, and segment transport trucks for overlapping operations, it is necessary to rationally plan the overlapping of these operations. To reduce the time concrete mixer trucks spend in the precast lanes and improve the overlapping of other transport vehicles, thereby increasing construction efficiency and shortening the project cycle, concrete mixer trucks are sometimes arranged to pour concrete into the gaps in the precast concrete lanes that have already been poured and reached the required hardness standard. However, this method has several drawbacks. Because the precast concrete lanes are always constructed ahead of the adjacent cast-in-place lanes, and the cast-in-place lanes formed after the side gaps need to reach the required hardness standard before they can be used as roads for concrete mixer trucks, there are long waiting periods and concrete mixer trucks experiencing downtime, wasting time and affecting the project schedule. Furthermore, when concrete mixer trucks pour concrete into the side gaps in the precast concrete lanes that have already reached the required hardness standard, the pouring distance is relatively short, limiting the pouring area and further impacting the project schedule. Therefore, how to improve the efficiency of concrete pouring, increase the pouring distance, and shorten the cycle when pouring concrete in the gap area on both sides of the precast lane to form a cast-in-place lane has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0003] The purpose of this invention is to provide a device and method for pouring cast-in-place concrete on both sides of a precast tunnel lane, in order to solve the problems of short pouring distance, low pouring efficiency, and long construction cycle of the internal road structure of the tunnel.

[0004] To solve the above-mentioned technical problems, the present invention provides a concrete pouring device for cast-in-place lanes on both sides of a precast lane in a shield tunnel, including a frame mechanism and a concrete pump installed on the frame mechanism, wherein a side guide wheel mechanism is hinged to one side wall of the concrete pump in the vertical direction.

[0005] Furthermore, in the concrete pouring device for the cast-in-place lanes on both sides of the precast lane in the shield tunnel provided by the present invention, hooks are respectively provided at the front and rear ends of the frame mechanism.

[0006] Furthermore, the concrete pouring device for cast-in-place lanes on both sides of the precast lane in the shield tunnel provided by the present invention includes at least a frame and wheels on it.

[0007] Furthermore, the present invention provides a concrete pouring device for cast-in-place lanes on both sides of a precast tunnel lane, wherein the concrete pumping machine includes a housing, a pump installed inside the housing, and an inlet and an outlet connected to the pump, wherein the inlet and outlet extend beyond the housing.

[0008] Furthermore, in the precast concrete pouring device for both sides of the shield tunnel precast lane provided by the present invention, the feed inlet is funnel-shaped.

[0009] Furthermore, the concrete pouring device for the cast-in-place lanes on both sides of the precast lane of the shield tunnel provided by the present invention has two inlets and two outlets.

[0010] Furthermore, the present invention provides a concrete pouring device for cast-in-place lanes on both sides of a precast tunnel roadway in a shield tunnel. The side guide wheel mechanism includes a first hinged support mounted on the side wall of the concrete pump machine's housing, a lateral wheel frame mounted on one side of the concrete pump machine's housing, the lateral wheel frame including a vertically arranged shaft, side wheels connected to both ends of the shaft, a second hinged support mounted in the middle of the shaft, and a hydraulic rod hinged between the first hinged support and the second hinged support. The hydraulic rod is movably connected to the first hinged support and the second hinged support along the length direction of the shaft, respectively.

[0011] Furthermore, the present invention provides a concrete pouring device for cast-in-place lanes on both sides of the precast lane of a shield tunnel, wherein hooks are respectively provided at the front and rear ends of the box body.

[0012] To address the aforementioned technical problems, this invention also provides a method for pouring cast-in-place concrete for the precast lane sides of a shield tunnel. The method involves placing the aforementioned cast-in-place concrete pouring device for the precast lane sides of the tunnel within the gap area on both sides of the precast lane. The side guide wheel mechanism on the device contacts the side wall of the precast lane. A concrete mixer truck transports concrete from the already poured and hardened cast-in-place lane to the cast-in-place concrete pouring device. By moving the cast-in-place concrete pouring device along its length within the gap area on both sides of the precast lane, concrete is poured to form the cast-in-place lane.

[0013] Furthermore, the present invention provides a method for pouring cast-in-place concrete on the side of a precast tunnel lane in a shield tunnel, in which multiple cast-in-place concrete pouring devices are cascaded in the gap area on both sides of the precast tunnel lane to pour concrete.

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

[0015] The present invention provides a concrete pouring device and method for cast-in-place lanes on both sides of a precast tunnel lane. The cast-in-place lane concrete pouring device is installed in the gap area on both sides of the precast lane in the tunnel. Concrete is transported from a concrete mixer truck to the device. The device, via its frame mechanism and side guide wheel mechanism, can travel along the length of the circular tunnel and pour concrete into the gap area using a concrete pump. This extends the pouring distance, eliminating the need for the concrete mixer truck to wait for the cast-in-place lane to reach the required hardness before moving to the next gap area for pouring. This reduces the waiting period and overcomes the limitations of concrete mixer truck pouring distance and waiting period. It also avoids transportation conflicts caused by concrete mixer trucks occupying the precast lane and interfering with other construction vehicles, improving the construction efficiency of cast-in-place lane concrete pouring, reducing waiting time, and shortening the overall construction period of the tunnel lane structure.

[0016] The present invention provides a concrete pouring device and method for cast-in-place lanes on both sides of a precast tunnel roadway. The side guide wheel mechanism travels along the side wall of the precast roadway, supporting the concrete pump and maintaining the balance of the cast-in-place concrete pouring device in the circular tunnel. This prevents the safety risk of overturning when the device travels on the curved ground in the gap area on both sides of the precast roadway. The side guide wheel mechanism can adapt to any position along the width of the curved ground in the gap area, further ensuring the safe travel of the cast-in-place concrete pouring device within the gap area on both sides of the precast roadway. Attached Figure Description

[0017] Figure 1 Yes, this is a structural diagram of the cast-in-place concrete pouring device for the precast tunnel lanes on both sides.

[0018] Figure 2 Yes, this is a structural diagram showing the concrete pouring equipment for the cast-in-place lanes on both sides of the precast tunnel lane in use.

[0019] Figure 3 This is a structural schematic diagram of a cascaded cast-in-place concrete pouring device for a driveway.

[0020] As shown in the figure:

[0021] 100. Cast-in-place concrete pouring device for driveway; 110. Chassis mechanism; 111. Chassis; 112. Wheel; 120. Concrete pump; 121. Box body; 122. Inlet; 123. Outlet; 130. Side guide wheel mechanism; 131. First hinge support; 132. Hydraulic rod; 133. Side guide wheel mechanism; 133-1. Shaft; 133-2. Side wheel; 133-3. Second hinge support; 140. Hook;

[0022] 200. Tunnel; 210. Precast lane; 220. Cast-in-place lane.

[0023] 300. Segment transport vehicle;

[0024] 400. Concrete mixer truck. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0026] Please refer to Figure 1 This invention provides a concrete pouring device 100 for cast-in-place lanes on both sides of a precast lane in a shield tunnel, including a frame mechanism 110 and a concrete pump 120 mounted on the frame mechanism 110. A side guide wheel mechanism 130 is hinged to one side wall of the concrete pump 120 in the vertical direction.

[0027] The frame mechanism 110 includes at least a frame 111 and wheels 112 thereon.

[0028] The concrete pump 120 includes a housing 121, a pump (not shown) disposed within the housing 121, and an inlet 122 and an outlet 123 connected to the pump, the inlet 122 and the outlet 123 extending beyond the housing 121. The pump is a concrete pump known in the art.

[0029] The side guide wheel mechanism 130 includes a first hinged support 131 disposed on the side wall of the housing 121 of the concrete pump 120, a side wheel frame 133 disposed on one side of the housing 121 of the concrete pump 120, the side wheel frame 133 including a vertically arranged shaft 133-1, side wheels 113-2 connected to both ends of the shaft 133-1, a second hinged support 133-3 disposed in the middle of the shaft 133-1, and a hydraulic rod 132 hinged between the first hinged support 131 and the second hinged support 133-3, the hydraulic rod 132 being movably connected to the first hinged support 131 and the second hinged support 133-3 along the length direction of the shaft 133-1 respectively.

[0030] Please refer to Figure 1 To facilitate the delivery of concrete from the concrete mixer truck 400 to the cast-in-place roadway concrete pouring device 100, the cast-in-place roadway concrete pouring device 100 on both sides of the precast roadway in the shield tunnel provided in this embodiment of the invention has a funnel-shaped inlet 122. Both the inlet 122 and the outlet 123 can be two, to avoid one becoming blocked and unusable.

[0031] Please refer to Figure 2 This invention also provides a method for pouring cast-in-place concrete for the sides of a precast tunnel roadway in a shield tunnel. The method involves placing the aforementioned cast-in-place concrete pouring device 100 on both sides of the precast tunnel roadway 210 in the tunnel 200, with its side guide wheel mechanism 130 contacting the side wall of the precast roadway 210. Specifically, the side wheels 113-2 of the side guide wheel mechanism 130 contact the side wall of the precast roadway 210. A concrete mixer truck 400 transports concrete from the already poured and hardened cast-in-place roadway 220 to the cast-in-place concrete pouring device 100. By moving the cast-in-place concrete pouring device 100 along its length within the gap area on both sides of the precast roadway 210 in the tunnel 200, concrete is poured to form the cast-in-place roadway 220. Figure 2 The example illustrates a cast-in-place concrete pouring device 100 installed on one side of a precast lane 210. The cast-in-place concrete pouring device 100 can be moved via a traction device, a pushing device, or other means known in the art. The traction device can be a tunnel boring machine, other traction mechanisms known in the art, or manual traction.

[0032] Please refer to Figure 3The present invention provides a method and apparatus for pouring concrete for cast-in-place lanes on both sides of a precast lane in a shield tunnel. Multiple cast-in-place lane concrete pouring devices 100 are cascaded within the gap area on both sides of the precast lane 210 of the tunnel 200 to pour concrete. To achieve cascading, hooks 140 can be provided at both ends of the frame 111 of the chassis mechanism 110 or at the front and rear ends of the housing 121 of the concrete pump 120. Adjacent cast-in-place lane concrete pouring devices 100 are connected via hooks 140. Alternatively, they can be connected via rigid connecting rods. The first or last cast-in-place lane concrete pouring device 100 can be connected to a traction device or a pushing device via hooks 140, providing power for the movement of the cast-in-place lane concrete pouring device 100. Figure 3 The example only illustrates the cascading relationship of two cast-in-place lane concrete pouring devices 100. The discharge port 123 and the inlet 122 of two adjacent cast-in-place lane concrete pouring devices 100 can be connected by a hose (not shown).

[0033] The present invention provides a concrete pouring device 100 and method for cast-in-place lanes on both sides of a precast tunnel lane. The cast-in-place lane concrete pouring device 100 is installed in the gap area on both sides of the precast lane 210 of the tunnel 200. A concrete mixer truck 400 transports concrete into the cast-in-place lane concrete pouring device 100. The cast-in-place lane concrete pouring device 100 can travel along its length via its frame 111 mechanism 110 and side guide wheel mechanism 130, and pours concrete into the gap area using a concrete pump 120, thus extending the pouring time. The improved construction distance allows the concrete mixer truck 400 to move closer to the next gap area for concrete pouring without waiting for the curing period of the cast-in-place lane 220 to reach the required hardness. This reduces the waiting period and breaks through the limitations of the concrete mixer truck 400's pouring distance and waiting period. It also avoids the transportation conflict between the concrete mixer truck 400 occupying the precast lane 210 and other engineering vehicles, improves the construction efficiency of the cast-in-place lane 220, reduces waiting time, and shortens the overall construction period of the internal lane structure of the tunnel 200.

[0034] The present invention provides a method and apparatus for casting-in-place concrete pouring on both sides of a precast tunnel lane. A side guide wheel mechanism 130 travels on the sidewall of the precast lane 210, supporting the concrete pump 120 and maintaining the balance of the cast-in-place concrete pouring apparatus 100 on the circular tunnel 200. This prevents the safety risk of overturning when the cast-in-place concrete pouring apparatus 100 travels on the curved ground of the gap area on both sides of the precast lane 210. The side guide wheel mechanism 130 can adapt to any position on the curved ground of the gap area in the width direction, further ensuring the safe travel of the cast-in-place concrete pouring apparatus 100 within the gap area on both sides of the precast lane 210. The extension and retraction control of the hydraulic rod 132 in the side guide wheel mechanism 130 can adapt to the distance between the cast-in-place concrete pouring apparatus 100 and the sidewall of the precast lane 210, ensuring the balance of the cast-in-place concrete pouring apparatus 100 within the gap area.

[0035] Please refer to Figure 2 The present invention provides a concrete pouring device 100 and method for cast-in-place lanes on both sides of a precast tunnel lane. The cast-in-place lane concrete pouring device 100 can travel and pour concrete in the narrow gap area on both sides of the precast lane 210, which can improve the pouring quality. The pouring of the cast-in-place lane 220 can be carried out from the tunnel entrance side to the shield machine side, or from the opposite direction. Compared with the direct pouring by the concrete mixer truck 400, it facilitates the pouring construction, extends the pouring distance, and expands the pouring range.

[0036] The concrete pouring device 100 and method for cast-in-place lanes on both sides of the precast lane 210 in the tunnel provided in this embodiment of the invention can be used for concrete pouring construction of cast-in-place lanes 220 on both sides of the precast lane 210 in the narrow space inside the tunnel 200. While the shield tunneling and other precast lane 210 installations are underway, side backfilling is completed to form the cast-in-place lane, improving the construction efficiency of the lane structure inside the tunnel. This allows the concrete mixer truck 400 to occupy little or no space in the precast lane 210, facilitating the cross-operation of the tunnel segment transport vehicle 300 and the precast lane 210 transport vehicle, avoiding transportation conflicts, promoting seamless workflow between different processes, improving the overall construction efficiency of the tunnel project, and shortening the cycle of the tunnel's internal road structure and the overall tunnel project.

[0037] The concrete pouring device 100 and method for cast-in-place lanes on both sides of the precast tunnel lane provided in this embodiment of the invention enable simultaneous concrete backfilling and pouring of the precast lane 210 and the shield tunneling of the tunnel 200, thereby reducing energy consumption. It avoids transportation conflicts between component transport vehicles, segment transport vehicles, and concrete mixer trucks, maximizes the use of the internal space of the shield tunnel, and allows for the installation of the precast lane 210 and tunnel lining segments while side pouring is being carried out, thus improving efficiency and shortening the construction period.

[0038] This invention is not limited to the specific embodiments described above. Obviously, the embodiments described above are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of this invention are within the scope of protection of this invention. Those skilled in the art can make other modifications and variations to this invention. Therefore, if these modifications and variations of this invention fall within the scope of the claims of this invention, then this invention also intends to include these modifications and variations.

Claims

1. A concrete pouring device for cast-in-place lanes on both sides of a precast lane in a shield tunnel, characterized in that, The system includes a frame mechanism and a concrete pump mounted on the frame mechanism. A side guide wheel mechanism is hinged vertically on one side wall of the concrete pump. The concrete pump includes a housing, a pump housed within the housing, and an inlet and an outlet connected to the pump, the inlet and outlet extending beyond the housing. The side guide wheel mechanism includes a first hinged support on the side wall of the housing of the concrete pump, a lateral wheel frame on one side of the housing of the concrete pump, the lateral wheel frame including a vertically arranged axle, side wheels connected to both ends of the axle, a second hinged support in the middle of the axle, and a hydraulic rod hinged between the first and second hinged supports. The hydraulic rod is movably connected to the first and second hinged supports along the length of the axle.

2. The concrete pouring device for cast-in-place lanes on both sides of the precast lane in a shield tunnel according to claim 1, characterized in that, The frame mechanism is equipped with hooks at both the front and rear ends.

3. The concrete pouring device for cast-in-place lanes on both sides of the precast lane in a shield tunnel according to claim 1, characterized in that, The frame mechanism includes at least the frame and the wheels on it.

4. The concrete pouring device for cast-in-place lanes on both sides of the precast lane in a shield tunnel according to claim 1, characterized in that, The feed inlet is funnel-shaped.

5. The concrete pouring device for cast-in-place lanes on both sides of the precast lane in a shield tunnel according to claim 1, characterized in that, There are two feed inlets and two discharge outlets.

6. The concrete pouring device for cast-in-place lanes on both sides of the precast lane in a shield tunnel according to claim 1, characterized in that, The front and rear ends of the box are respectively equipped with hooks.

7. A method for pouring cast-in-place concrete for the side of a precast tunnel carriageway in a shield tunnel, characterized in that, The cast-in-place concrete pouring device for the precast tunnel lanes on both sides as described in any one of claims 1-6 is placed in the gap area on both sides of the precast tunnel lanes. The side guide wheel mechanism on the device contacts the side wall of the precast lane. The concrete mixer truck transports the concrete in the cast-in-place lane that has been poured and has reached the hardness standard to the cast-in-place lane concrete pouring device. The cast-in-place lane concrete pouring device is moved so that it travels along its length in the gap area on both sides of the precast tunnel lanes and pours concrete to form the cast-in-place lane.

8. The method for pouring cast-in-place concrete for the precast lane side of a shield tunnel according to claim 7, characterized in that, Multiple cast-in-place concrete pouring devices are cascaded in the gap area on both sides of the precast tunnel lane to pour concrete.

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