JPS6367000B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for transporting equipment, workers, excavation shears, and workers for tunnel construction.

Traditionally, when constructing a tunnel, equipment was brought in from the tunnel entrance to the vicinity of the face, and workers were transported.
In addition, in order to carry out the excavation shear supplied from the tunnel face toward the tunnel entrance and to transport the workers, a track is provided from the tunnel entrance to the vicinity of the face, and the work is carried out while a transport vehicle is running.

According to such a system, the shear cannot be loaded until the transport vehicle on the shunt track provided in the middle of the track reaches the face, so the shear cannot be carried out by continuous operation, resulting in a significant drop in efficiency.

Another problem was that after the equipment had been brought into the working face and unloaded, it was not possible to bring the next piece of equipment into the working face until the transport vehicle was loaded onto the shunt track.

The present invention aims to solve the above-mentioned problems by continuously transporting shear and efficiently transporting equipment.

This invention consists of a single endless belt from the entrance of the tunnel to the face, and a track is provided on each of the above-mentioned outward and return routes from outside the tunnel to the face, so that equipment and workers on the track on the outward route are provided with tracks. The transport vehicle is driven to the tunnel face using the belt on the outward journey, and the transport vehicle on the return track is driven to the outside of the tunnel using the belt on the return journey. To provide a carrying-in/unloading method for tunnel construction in which a transport vehicle is moved from a side track to a return track and from a return track to an outbound track.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In the figure, A is a tunnel, and between the front of the face in the tunnel A and the outside, there is a belt conveyor 3 that constitutes two parallel outbound routes 1 and 2 on the left and right using one endless belt. It is provided.

The belt conveyor 3 described above is configured such that the belt reversed by the head pulley 4 on the outward path 1 is reversely bent by a pair of vertical guide pulleys 5 and then transferred to the tail pulley 6 on the backward path 2, and the belt reversed by the head pulley 7 on the backward path 2 is transferred to the pair of vertical guide pulleys 5. While being reversely bent by the pulley 5, they are each guided to the tail pulley 9 on the outward path 1.

Also, for the outbound trip 1 and return trip 2, track 1 is provided, respectively.
0 and 11 are provided.

The above-mentioned tracks 10 and 11 are formed by two rails laid on both sides of the outbound route 1 and the return route 2.

Furthermore, on the above-mentioned tracks 10 and 11, a transport vehicle B
is on board.

In addition, a traverse track 1 is placed on the face side of the conveyor 3.
2, and the reciprocating cart 13 placed on the traverse track 12 is provided with a track 14 whose end coincides with the ends of the tracks 10 and 11 as the reciprocating cart 13 moves forward and backward.

In the case shown in the figure, the advancing and retracting carriage 13 is moved forward and backward by extending a chain 17 between the pair of sprockets 15 and 16, fixing the advancing and retracting carriage 13 to this chain 17 via a connecting member 18, and driving the motor 19. In this embodiment, the reciprocating cart 13 is moved while the moving carriage 17 is moved, but other methods may be used.

Furthermore, transport vehicle B located outdoors on track 11
is now able to transfer to orbit 10.

The above transfer is on tracks 10 and 11 in the case shown.
Although this was carried out using the connecting track 20 that connects the traverse tracks, it may also be carried out using a reciprocating cart on a traverse track in the same way as described above.

Further, each carrier B is provided with a pressurizing device C that makes the carrier B travel by contacting the belts on the outward route 1 and the return route 2.

In the case shown in the figure, the above-mentioned pressurizing device C is provided with a weight plate 22 that moves up and down via a link 21 on the lower side of the transport vehicle B, and by pushing the transport vehicle B into the outward route 1 and return route 2, the weight plate 22 is is pushed up, and the weight plate 22 is brought into pressure contact with the upper surface of the belt on the forward path 1 and the backward path 2 by its own weight.

Note that the belt on the return route 2 has a tiger angle that is effective for loading excavated shear.

In the figure, reference numeral 23 is a belt conveyor that conveys the excavated waste carried out from the head on the return route 2. Reference numeral 24 denotes a moving unit on which the traverse track 12, the head of the outgoing path 1, and the tail of the returning path 2 are installed, and as the face advances, the belt of the belt conveyor 3 is added to move the moving unit 24 toward the face. .

Next, the carrying-in/carrying-out method according to the present invention will be described. Excavated waste on the face is supplied from the face conveyor 25 to the tail of the returning route 2, and then transferred from the head of the returning route 2 to the belt conveyor 23.

In addition, when transporting workers or equipment to the face, first load the workers or equipment D onto the transport vehicle B on the track 10, and then push the transport vehicle B onto the tail of the outward route 1.

The above-mentioned pushing is performed by human power or by engaging the hook (not shown) of a chain running on the transport vehicle B.

As transport vehicle B was pushed onto the above outward route 1,
The weight plate 22 is pushed up by the belt on the outward path 1, and the weight plate 22 rides on the belt on the outward path 1, so that the weight plate 22 is pressed against the belt by its own weight.

Therefore, the transport vehicle B travels on the track 10 on the outward route 1.

When the transport vehicle B reaches the head of the above-mentioned outward route 1,
Transport vehicle B is moved from track 10 to track 14 of advancing/retracting truck 13.
is transferred and stopped by the stopper 26. The equipment D on the stopped transport vehicle B is removed.

After that, the advancing/retracting cart B is advanced so that the tracks 11 and 14 match, and then stopped, and then the transport vehicle B is pushed from the track 14 toward the track 11 (this pushing may be done manually or by advancing/retracting as shown). Trolley 1
3), and the weight plate 2 is attached to the belt on the return trip 2 in the same way as described above.
2 are in pressure contact with each other, so while the transport vehicle B is running on the track 11 of the above-mentioned outward route 2, the transport vehicle B is moved out of the tunnel A.
is sent out.

Note that when transport vehicle B is sent out of tunnel A, the supply of shear to return route 2 is stopped.

Further, when transporting a worker from the face to the outside of the tunnel A, a transport vehicle B is used, which is driven using the return route 2.

In addition, when receiving the transport vehicle B on the track 10, the advancing/retracting cart 13 is moved backward so that the ends of the tracks 10 and 14 are aligned.

As described above, according to the carrying-in/unloading method for tunnel construction according to the present invention, one endless belt extends from the face of the tunnel to the outside of the tunnel to form two parallel outgoing and returning paths on the left and right, and the outgoing path and the incoming path. A track is provided at each end, and the carrier vehicle on the track is pushed into the tail of the outward route, and the pressure device installed on the carrier vehicle is pressed against the belt of the outward route, and the carrier vehicle is run toward the face. When it arrives, the transport vehicle is accepted by the advance/retreat truck on the traverse track,
Then, when unloading workers or equipment, or when an empty transport vehicle is on the traverse track, advance the retractable cart to match the trajectory of the retractable cart with the trajectory of the return route, and then push the transport vehicle onto the return route to use the return route. The vehicle can be sent out of the tunnel by
It is possible to transport shedding continuously by driving a conveyor without towing the transport vehicle one by one, to transport workers and equipment to the face while driving the transport vehicle on the outbound and return journeys, or to transport workers outside the tunnel. It can be carried out efficiently.

Further, since the load on the transport vehicle is received by the track on the outward and return trips, no unreasonable force is applied to the belt conveyor on the outward and return trips.

[Brief explanation of drawings]

The drawings show embodiments of the invention.
The figure is a cross-sectional plan view, Figure 2 is a longitudinal side view of the same, Figure 3 is an enlarged side view of the carrier, and Figure 4 is a longitudinal front view of the same.
FIG. 5 is a partially cutaway side view of the pressurizing device, FIG. 6 is an enlarged side view showing the advancing and retracting cart on the traverse track, and FIG. 7 is a partially cutaway front view of the same. A...Tunnel, B...Transportation vehicle, C...Pressure device, D...Equipment, 1...Outward trip, 2...Return trip, 3...
...Belt conveyor, 4...Head pulley, 5...
Vertical guide pulley, 6...Tail pulley, 7...
Head pulley, 9... Tail pulley, 10... Orbit, 11... Orbit, 12... Traverse orbit, 1
3... Advance/retreat trolley, 14... Track, 15, 16...
Sprocket, 17... Chain, 18... Connection member, 19... Motor, 20... Connection track, 21
... Link, 22 ... Weight board, 23 ... Belt conveyor.

Claims (1)

[Claims] 1. A belt conveyor with a single endless belt extending from the entrance of the tunnel to the face, parallel to the outbound and return routes on the left and right, and a belt conveyor installed so that vehicles for transporting workers and equipment can be carried on the outbound and return routes, respectively. a pressurizing device installed on each transport vehicle to pressurize the belts on the outbound and return journeys, a traverse track provided on the face side, and a reciprocating truck on the traverse track so that the transport vehicle can transfer from the above track to the retractable bogie. It consists of a set track and a device that transfers the transport vehicle from the return track outside the tunnel to the outbound track, and transports the excavated shear of the face out of the tunnel on the return journey, and also pushes the transport vehicle into the tail of the outward journey to transfer the transport vehicle to the outbound track. The transport vehicle is driven onto the track of the advancing/retracting trolley while being pressed against the belt pressurizing device on the outbound route, and after unloading the workers and equipment, the advancing/retracting trolley is stopped moving forward and the transport vehicle is moved on the return route. A method for carrying in and carrying out tunnel construction, in which the transport vehicle is driven outside the tunnel by pressing the belt on the return journey and the pressure device, and the transport vehicle is transferred from the track on the return journey to the track on the outbound journey.