Transport system for matching a continuous excavation shield and method of operation thereof

Abstract

The application discloses a conveying system for matching a continuous tunneling shield machine and a working method thereof, the system comprising a residue discharging module installed at the rear of a cutter head, a transverse conveying module installed in a tunnel, and a vertical conveying module installed in a vertical shaft; the transverse conveying module comprises an upper magnetic suspension track, a lower magnetic suspension track, a magnetic suspension vehicle, a front rail turning device, and a rear rail turning device; the upper magnetic suspension track and the lower magnetic suspension track are both spliced by module units and are extended to the shield matching trolley from the tunnel portal as a starting point along with the advancement of the shield machine; the magnetic suspension vehicle is used for carrying a box body; and the front rail turning device and the rear rail turning device are used for transferring the magnetic suspension vehicle between the upper and lower magnetic suspension tracks; the vertical conveying module comprises an out-of-shaft elevator and an in-of-shaft elevator. The application can realize continuous residue discharging and material continuous conveying of the continuous tunneling shield machine in a continuous tunneling mode, greatly improves construction efficiency, and is suitable for conventional short-distance tunnels.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tunnel construction, and particularly relates to a transportation system for matching a continuous tunneling shield machine and a working method thereof. BACKGROUND

[0002] A conventional shield machine adopts a rail car for discharging spoil, and the spoil discharge mode is discontinuous conveying, which cannot meet the demand for continuous spoil discharge. In the construction of a super-long tunnel, a California turnout or a continuous belt machine can be used for continuous spoil discharge, but it is not applicable to a conventional short-distance tunnel. SUMMARY

[0003] The present application aims to provide a transportation system for matching a continuous tunneling shield machine and a working method thereof. The present application can realize continuous spoil discharge and material continuous conveying of the continuous tunneling shield machine in a continuous tunneling mode, greatly improves the construction efficiency, and is applicable to a conventional short-distance tunnel.

[0004] The technical scheme adopted by the present application is as follows:

[0005] A transportation system for matching a continuous tunneling shield machine comprises a spoil discharge module installed at the rear of a cutter head, a horizontal conveying module installed in a tunnel, and a vertical conveying module installed in a vertical shaft. The horizontal conveying module comprises upper and lower magnetic suspension tracks respectively located on the upper and lower sides of the tunnel, a plurality of magnetic suspension cars capable of traveling along the upper and lower magnetic suspension tracks, a front rail transfer device installed on a shield matching trolley, and a rear rail transfer device installed at the tunnel portal. The upper and lower magnetic suspension tracks are both connected by module units and are extended to the shield matching trolley along with the advancement of the shield machine. The magnetic suspension car is used for carrying a box for storing spoil or material. The front rail transfer device is used for transferring the magnetic suspension car from the upper magnetic suspension track to the lower magnetic suspension track. The rear rail transfer device is used for transferring the magnetic suspension car from the lower magnetic suspension track to the upper magnetic suspension track. The vertical conveying module comprises an out-of-shaft elevator for transferring the box conveyed from the lower magnetic suspension track to the ground, and an in-of-shaft elevator for transferring the box from the ground to the vicinity of the end of the upper magnetic suspension track. The spoil discharge module is used for transferring the excavated spoil into the box above the lower magnetic suspension track, and the end of the spoil discharge module moves along with the shield matching trolley.

[0006] Further, the front rail transfer device and the rear rail transfer device each comprise a supporting plate for supporting the magnetic suspension car and a moving mechanism for moving the supporting plate along the transfer route.

[0007] Further, the out-of-shaft elevator and the in-of-shaft elevator each adopt a circulating structure comprising a plurality of supporting frames for supporting the box and a circulating movement device for moving all the supporting frames along the vertical two sides.

[0008] Further, the slag discharging module comprises a two-stage articulated screw conveyor, a belt conveyor and a slag distributor connected in sequence, the two-stage articulated screw conveyor is a screw conveyor connected by two stages of articulation, the belt conveyor is installed on the front shield matching trolley, and the slag distributor is installed on the rear shield matching trolley.

[0009] The working method for matching the transportation system of the continuous tunneling shield machine is as follows:

[0010] When discharging slag, at the shield matching trolley, the front rail transfer device transfers the maglev vehicle with the empty box from the upper maglev rail to the lower maglev rail, the slag discharging module transfers the slag excavated by the shield machine into the empty box of the maglev vehicle on the lower maglev rail, after being filled, the maglev vehicle with the filled box travels backward along the lower maglev rail; at the tunnel portal and the shaft, the filled box is transferred to the out-of-shaft elevator, the out-of-shaft elevator transfers the filled box to the ground, the rear rail transfer device transfers the maglev vehicle from the lower maglev rail to the upper maglev rail, the in-of-shaft elevator transfers the empty box from the ground to the vicinity of the end of the upper maglev rail, the empty box is transferred to the maglev vehicle on the upper maglev rail, and the maglev vehicle with the empty box travels forward along the upper maglev rail; as the shield machine advances, the upper maglev rail and the lower maglev rail are extended forward to the shield matching trolley.

[0011] When conveying material, the in-of-shaft elevator transfers the box with the material from the ground to the vicinity of the end of the upper maglev rail, the box with the material is transferred to the maglev vehicle on the upper maglev rail, the maglev vehicle with the box travels forward along the upper maglev rail, then the front rail transfer device transfers the maglev vehicle with the box from the upper maglev rail to the lower maglev rail, the maglev vehicle travels along the lower maglev rail to the required position, the material is taken away, the maglev vehicle with the empty box travels backward, then the empty box is transferred to the out-of-shaft elevator, the out-of-shaft elevator transfers the empty box to the ground, and the rear rail transfer device transfers the maglev vehicle from the lower maglev rail to the upper maglev rail; as the shield machine advances, the upper maglev rail and the lower maglev rail are extended forward to the shield matching trolley.

[0012] Further, the transfer of the box between the lower maglev rail and the out-of-shaft elevator and the transfer of the box between the upper maglev rail and the in-of-shaft elevator are realized by manual carrying, realized by manual operation of auxiliary equipment or realized by automatic equipment.

[0013] The present application has the following beneficial effects:

[0014] The present application can realize continuous slag discharging and material conveying of the continuous tunneling shield machine in the continuous tunneling mode, greatly improves the construction efficiency and is suitable for conventional short-distance tunnels. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a working schematic diagram of the transport system for matching the continuous tunneling shield machine in the embodiment of the present application.

[0016] Figure 2 is an enlarged view of the front section of Figure 1 .

[0017] Figure 3 is an enlarged view of the middle section of Figure 1 .

[0018] Figure 4 is an enlarged view of the rear section of Figure 1 .

[0019] Figure 5 is a sectional view of A-A in Figure 1 .

[0020] In the figure: 1 - cutterhead; 2 - main push oil cylinder; 3 - segment assembling oil cylinder; 4 - secondary articulated screw conveyor; 5 - belt conveyor; 6 - shield matching trolley; 7 - muck distributor; 8 - box body; 9 - front turning rail device; 10 - lower magnetic suspension rail; 11 - upper magnetic suspension rail; 12 - magnetic suspension vehicle; 13 - rear turning rail device; 14 - entry shaft elevator; 15 - exit shaft elevator; 16 - module unit. DETAILED DESCRIPTION

[0021] The present application will be further described below in conjunction with the drawings and embodiments.

[0022] As Figures 1 to 5As shown in the figure, a transport system for matching continuous tunneling shield machine includes a residue discharging module installed at the rear of the cutter head 1, a horizontal conveying module installed in the tunnel, and a vertical conveying module installed in the shaft; the horizontal conveying module includes an upper magnetic suspension track 11 and a lower magnetic suspension track 10 respectively located at the upper and lower sides in the tunnel, a plurality of magnetic suspension vehicles 12 capable of traveling along the upper and lower magnetic suspension tracks (11, 10), a front rotating track device 9 installed on the shield matching trolley 6, and a rear rotating track device 13 installed at the tunnel opening; the upper and lower magnetic suspension tracks 11 and 10 are both spliced by module units 16 and are extended to the shield matching trolley 6 along with the advancement of the shield machine from the tunnel opening; the magnetic suspension vehicle 12 is used to carry the box body 8 for storing the residue soil or material; the front rotating track device 9 is used to transfer the magnetic suspension vehicle 12 from the upper magnetic suspension track 11 to the lower magnetic suspension track 10; the rear rotating track device 13 is used to transfer the magnetic suspension vehicle 12 from the lower magnetic suspension track 10 to the upper magnetic suspension track 11; the vertical conveying module includes an out-of-shaft elevator 15 for transferring the box body 8 conveyed by the lower magnetic suspension track 10 to the ground and an in-of-shaft elevator 15 for transferring the box body 8 from the ground to the vicinity of the end of the upper magnetic suspension track 11; the residue discharging module is used to transfer the excavated residue soil into the empty box body 8 on the lower magnetic suspension track 10, and the end of the residue discharging module moves along with the shield matching trolley 6.

[0023] As shown in the figure, Figure 3 and Figure 4 in this embodiment, the front rotating track device 9 and the rear rotating track device 13 both include a supporting plate for supporting the magnetic suspension vehicle 12 and a moving mechanism for moving the supporting plate along the transfer route; the moving mechanism can adopt the combination of the most common lifting assembly, horizontal moving assembly, and rotating assembly to realize rotation and plane movement.

[0024] As shown in the figure, Figure 1 and Figure 4 in this embodiment, the out-of-shaft elevator 15 and the in-of-shaft elevator 14 both adopt a circulating structure, including a plurality of supporting frames for supporting the box body 8 and a circulating movement device for driving all the supporting frames to move in the vertical direction on both sides; there are many types of circulating elevators and circulating movement devices disclosed at present, and the type with small size and easy installation and maintenance can be selected according to the needs.

[0025] As shown in the figure, Figure 1 and Figure 2 in this embodiment, the residue discharging module includes a two-stage articulated screw conveyor 4, a belt conveyor 5, and a residue soil distributor 7 connected in sequence; the two-stage articulated screw conveyor 4 adopts a screw conveyor connected by two-stage articulation; the belt conveyor 5 is installed on the front shield matching trolley 6; and the residue soil distributor 7 is installed on the rear shield matching trolley 6.

[0026] As shown in the figure, Figure 1 andFigure 2 As shown in the figure, in the present embodiment, the front end of the shield tunneling machine is provided with a cutter head 1, a main pushing cylinder 2 and a segment assembling cylinder 3.

[0027] The working method for matching the transportation system of the continuous tunneling shield machine is as follows:

[0028] When discharging the slag, the front rail transfer device 9 transfers the maglev vehicle 12 with the empty box 8 from the upper maglev rail 10 to the lower maglev rail 11 at the shield matching trolley 6, the slag discharge module transfers the slag excavated by the shield tunneling machine into the empty box 8 on the maglev vehicle 12 of the lower maglev rail 10, after the box 8 is filled with the slag, the maglev vehicle 12 with the box 8 filled with the slag travels backward along the lower maglev rail 10; at the tunnel portal and the shaft, the box 8 filled with the slag is transferred to the out-of-shaft elevator 15, the out-of-shaft elevator 15 transfers the box 8 filled with the slag to the ground, the rear rail transfer device 13 transfers the maglev vehicle 12 from the lower maglev rail 10 to the upper maglev rail 11, the in-of-shaft elevator 14 transfers the empty box 8 from the ground to the vicinity of the end of the upper maglev rail 11, the empty box 8 is transferred to the maglev vehicle 12 of the upper maglev rail 11, and the maglev vehicle 12 with the empty box 8 travels forward along the upper maglev rail 11; as the shield tunneling machine advances, the upper maglev rail 11 and the lower maglev rail 10 are extended forward to the shield matching trolley 6.

[0029] When conveying the material, the in-of-shaft elevator 14 transfers the box 8 with the material from the ground to the vicinity of the end of the upper maglev rail 11, the box 8 with the material is transferred to the maglev vehicle 12 of the upper maglev rail 11, the maglev vehicle 12 with the box 8 with the material travels forward along the upper maglev rail 11, then the front rail transfer device 9 transfers the maglev vehicle 12 with the box 8 with the material from the upper maglev rail 11 to the lower maglev rail 10, the maglev vehicle 12 with the box 8 with the material travels along the lower maglev rail 10 to the desired position, the material is taken away, the maglev vehicle 12 with the empty box 8 travels backward, then the empty box 8 is transferred to the out-of-shaft elevator 15, the out-of-shaft elevator 15 transfers the empty box 8 to the ground, the rear rail transfer device 13 transfers the maglev vehicle 12 from the lower maglev rail 10 to the upper maglev rail 11; as the shield tunneling machine advances, the upper maglev rail 11 and the lower maglev rail 10 are extended forward to the shield matching trolley 6.

[0030] In the present embodiment, the transfer of the box 8 between the lower maglev rail 10 and the out-of-shaft elevator 15 and the transfer of the box 8 between the upper maglev rail 11 and the in-of-shaft elevator 14 are realized by manual carrying, realized by manual operation of auxiliary equipment or realized by automatic equipment. The auxiliary equipment can be a balanced arm, a semi-automatic mechanical arm or the like carrying equipment, the automatic equipment can be an intelligent mechanical arm with a recognition function for the target position, or a carrying trolley with a sensing recognition function and a lifting function.

[0031] The application can realize continuous slagging and material continuous conveying of the continuous tunneling shield machine in the continuous tunneling mode, greatly improves construction efficiency, and is suitable for conventional short-distance tunnels.

[0032] It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the application.

Claims

1. A transport system for a continuous excavation shield, characterized in that: The device comprises a residue discharging module installed at the rear of the cutter head, a horizontal conveying module installed in the tunnel, and a vertical conveying module installed in the shaft; the horizontal conveying module comprises an upper magnetic suspension track and a lower magnetic suspension track installed at the upper and lower sides of the tunnel respectively, a plurality of magnetic suspension vehicles capable of traveling along the upper and lower magnetic suspension tracks, a front rail transfer device installed on the shield supporting trolley, and a rear rail transfer device installed at the tunnel entrance; the upper and lower magnetic suspension tracks are connected by modules and are extended to the shield supporting trolley as the shield machine advances; the magnetic suspension vehicles are used to carry the boxes containing the residue or materials; the front rail transfer device is used to transfer the magnetic suspension vehicles from the upper magnetic suspension track to the lower magnetic suspension track; and the rear rail transfer device is used to transfer the magnetic suspension vehicles from the lower magnetic suspension track to the upper magnetic suspension track. The vertical conveying module comprises an out-of-shaft elevator used to transfer the boxes conveyed by the lower magnetic suspension track to the ground, and an in-of-shaft elevator used to transfer the boxes from the ground to the vicinity of the end of the upper magnetic suspension track. The residue discharging module is used to transfer the excavated residue into the empty boxes above the lower magnetic suspension track; the end of the residue discharging module moves with the shield supporting trolley. Both the out-of-shaft elevator and the in-of-shaft elevator adopt a circulating structure, which comprises a plurality of brackets used to hold the boxes and a circulating movement device used to drive all the brackets to move in the vertical direction. The residue discharging module comprises a two-stage articulated screw conveyor, a belt conveyor, and a residue distributor connected in sequence; the two-stage articulated screw conveyor is connected by two-stage articulated screw conveyors; the belt conveyor is installed on the front shield supporting trolley; and the residue distributor is installed on the rear shield supporting trolley.

2. A transport system for matching consecutive tunnel boring machines according to claim 1, characterized in that: Both the front rail transfer device and the rear rail transfer device comprise a supporting plate used to hold the magnetic suspension vehicle and a moving mechanism used to drive the supporting plate to move along the transfer route.

3. A working method for matching the conveying system of a continuous tunneling shield machine, as claimed in claim 1 or 2, characterized in that: when discharging the residue, the front rail transfer device transfers the magnetic suspension vehicle with the empty box from the upper magnetic suspension track to the lower magnetic suspension track at the shield supporting trolley; the residue discharging module transfers the residue excavated by the shield machine into the empty box above the magnetic suspension vehicle of the lower magnetic suspension track; after being filled, the magnetic suspension vehicle with the filled box travels backward along the lower magnetic suspension track; at the tunnel entrance and the shaft, the filled box is transferred to the out-of-shaft elevator, the out-of-shaft elevator transfers the filled box to the ground, the rear rail transfer device transfers the magnetic suspension vehicle from the lower magnetic suspension track to the upper magnetic suspension track, the in-of-shaft elevator transfers the empty box from the ground to the vicinity of the end of the upper magnetic suspension track, the empty box is transferred to the magnetic suspension vehicle of the upper magnetic suspension track, and the magnetic suspension vehicle with the empty box travels forward along the upper magnetic suspension track; as the shield machine advances, the upper and lower magnetic suspension tracks are extended to the shield supporting trolley. When conveying material: the in-hole lifter transfers the box containing material from the ground to the vicinity of the end of the upper magnetic suspension track, transfers the box containing material to the magnetic suspension vehicle on the upper magnetic suspension track, the magnetic suspension vehicle with the box containing material travels forward along the upper magnetic suspension track, then the front rail transfer device transfers the magnetic suspension vehicle of the box containing material from the upper magnetic suspension track to the lower magnetic suspension track, the magnetic suspension vehicle with the box containing material travels along the lower magnetic suspension track to the desired position, then the material is taken away, the magnetic suspension vehicle with the empty box travels backward, then the empty box is transferred to the out-hole lifter, the out-hole lifter transfers the empty box to the ground, and the rear rail transfer device transfers the magnetic suspension vehicle from the lower magnetic suspension track to the upper magnetic suspension track; As the shield machine advances, the upper magnetic suspension track and the lower magnetic suspension track are extended forward to the shield matching trolley.

4. A working method for matching the transport system of a continuous excavation shield machine as claimed in claim 3, characterized in that: The transfer of the box between the lower magnetic suspension track and the out-hole lifter and the transfer of the box between the upper magnetic suspension track and the in-hole lifter are realized by manual carrying, realized by manual operation of auxiliary equipment, or realized by automatic equipment.

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