JP2545305B2 - How to carry out tunnel excavation work - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for carrying out slips such as rocks generated in tunnel excavation work.

[0002]

2. Description of the Related Art Conventionally, in carrying out slag in tunnel excavation work, a method of loading a shavings-carrying vehicle with an engine such as a dump truck into a tunnel mine, loading the sledge with a shaving stacking facility on the face side, and carrying it out of the mine,
A method was used in which a track was laid in the tunnel mine, multiple locomotives were connected to diesel locomotives and electric locomotives, and similarly loaded with rifts and carried out of the mine. Also, although the technical fields are different, cable tow vehicles are known, such as for cable cars carrying passengers and ore vehicles carrying coal stones.

[0003]

By the way, according to the above-mentioned slip-out method, compared with the above-mentioned track equipment and locomotive, the earth and sand transport vehicle with an engine is easier to obtain, and has the merit of being cheaper. However, since the underground air is polluted with exhaust gas and the visibility is deteriorated due to dust and the like, there are problems in terms of labor safety and construction speed in the construction of long tunnels. Further, in the above-mentioned slip-out method, since the slips are loaded on each of a plurality of connected transport vehicles, or the slips are discharged and then connected to the locomotive to operate, the discharge work becomes intermittent. There is a problem that it is difficult to pull the locomotive if there is a poor tunneling efficiency and there is a tunnel slope. Even if the above-mentioned cable-pull type vehicle is adopted, in that case it is limited to the case where the mileage is constant, and it is not adopted in the case where the mileage is extended along with excavation such as tunnel construction. is there.

The present invention has been devised in view of the above circumstances, and an object of the present invention is to eliminate contamination of the air in the mine to improve labor safety and to allow continuous operation without affecting the tunnel slope. It is possible to provide a method for carrying out the tunnel excavation work, which is possible, can improve the efficiency of carrying out the project, and can also support the extension of the operation distance.

[0005]

In order to achieve the above-mentioned object, the present invention provides a method of transporting a slip from the face of a face inside a tunnel to the outside of the tunnel. Laying the tracks in parallel, arranging the cable wire in an endless winding along the both tracks, arranging a plurality of shear steel wheels on the track,
It is characterized in that the cable wire is connected to the scrap steel wheel and the scrap steel wheel is moved by the movement of the cable wire, and the track is replenished by advancing a tunnel so that the cable wire is fed out.

Further, according to the present invention, on the face of the tunnel inside the tunnel, the scrap steel wheel is separated from the cable wire to move from the forward track to the return track, and the scrap steel vehicle is loaded with the slip on the return track. It is characterized in that a shear steel wheel loaded with a slip is coupled to the cable wire.

Further, according to the present invention, on the outside of the tunnel pit, the shear steel wheel is disengaged from the cable wire to move from the return path to the outward path, and at the same time, the scrap is discharged and the shear steel wheel is moved to the cable wire. The feature is that they are combined.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. 1 and 2 are a plan view and a side view of a part of a pile stacking facility in a tunnel mine according to the present invention, and FIGS. 3 and 4 are a plan view and a side view of a part for transporting a pile inside or outside a mine. . 1 is a stacking facility, 6 is a forward track, and 7
Is a return track, 8 is a dumping site, 9 is a scrap discharge platform, 10 is a cable wire circulating drive device, 20 is a cable wire rewinding device, 30 is a scrap steel car, 40 is a mobile scrap loading platform, and 50 and 60 are Transfer device, 7
0 is a scrapping device.

The scraping equipment 1 provided on the face of the tunnel inside the tunnel is composed of, for example, two shufflers 2, 2, twin relay conveyors 3, 3 and a self-propelled train loader 4, and 5 is for material unloading. Hoist. Reciprocating tracks 6 and 7 are laid between the stacking equipment 1 and the scrap discharging platform 9, and a cable wire circulating drive device 10 is provided along the reciprocating tracks 6 and 7.
In FIGS. 3 and 8, 6a and 7a are evacuation tracks on the side of the slip discharge platform 9.

The cable wire circulating drive unit 10 is an endless winch 12, 1 for circulating drive, in which a cable wire 11 stretched along reciprocating tracks 6 and 7 is wound outside the mine.
3 and the circulating wheel 14 for re-folding the cable wire 11 installed in the mobile platform 40, and at various places,
Multiple rollers 15 for guiding the cable wire 11 ...
And a tension wheel 16 that applies a predetermined tension to the cable wire 11 outside the mine. As shown in FIGS. 8 and 9 and FIGS. 16 and 17, the cable wire extra-winding device 20 has a plurality of large wheeled vehicles on one axis in order to accommodate the required length of the cable wire 11 in accordance with the progress of excavation. The fixed side-by-side wheel group 21 and the similar movable side-by-side wheel group 22 are arranged in parallel.
Is a fixed frame for supporting the movable side-by-side wheel group 22. The moving frame 24 is provided with a roller 25, the moving cable wire 26 is wound around the roller 25 and folded back, one end of the moving cable wire 26 is fixed, and the other end is wound around a fixed cable drum 27. Has been done. A motor 29 is connected to the cable drum 27 via a speed reducer 28, whereby movement of the movable side-by-side wheel group 22 with respect to the fixed side-by-side wheel group 21 (see moving length L in FIG. 9) is performed. Be seen.

The scrap steel wheel 30 is connected to a large number of the cable wires 11 at equal intervals and, as shown in FIGS. 10 and 11, is provided with wheels 31 running on a track and a cable wire clamp mechanism 32. There is. Clamp mechanism 32
As shown in FIGS. 12 and 13, is a screw shaft 33 that is placed laterally below the shear steel wheel 30, and a moving coupling block 34 that is coupled to the screw shaft 33 and moves in the axial direction by the rotation of the screw shaft 33. A fixed coupling block 35 fixed to the lower surface of the shear steel wheel 30, a lever 36 connected to the outer end portion of the screw shaft 33, and a weight portion 37 provided at the tip of the lever 36.
It consists of Then, the coupling guide plate 38 and the detachment guide plate 39 that engage with the weight portion 37 and swing the lever 36 to engage and disengage the blocks 34 and 35 with the cable wire 11 will be described later. It is installed in each.

Mobile scrap loading platform 40
As shown in FIGS. 5 to 7, the wheels 42, ...
The forward path 46 and the return path 47 connected to the reciprocating tracks 6 and 7 are provided in parallel on the moving carriage 41. The circulating wheel 14 for folding back the cable wire 11 is arranged in the front part of the movable scraping and loading platform 40, and the frame 4 is provided on the front part.
A slipper hopper 44 is provided through the terminal 3.

Then, the traverse zone Z by the transfer device 50 is mounted on the movable slide loading platform 40.
2 and a traveling traverse zone Z1, a coupling / decoupling zone Z3 formed by the guide plates 38 and 39, and a sled stacking zone Z4 formed by the sled stacking equipment 1. As shown in FIG. 5 and FIG. 6, the transfer device 50 is a movable type slip steel wheel 30 that has been separated from the cable wire 11 in the forward path 46 in which the separation guide plate 39 in the coupling / separation zone Z3 is installed. Traveling traverse device 51 for transporting to the front part of the scrap loading platform 40
And a traverse device 52 for laterally moving the conveyed scrap steel wheel 30 to a return path 47 below the slip hopper 44 in the scrap stacking zone Z4, and for connecting the scrap steel wheel 30 in a real vehicle state with the slip to the return path 47. A traveling traverse device 53 that conveys the guide plate 38 to a location where the guide plate 38 is installed. The traveling traverse device 51,
53 can be configured using, for example, a chain conveyor,
Further, the traverse device 52 can be configured by moving the table back and forth by a driving means.

On the other hand, as shown in FIGS. 8 and 9, also on the sludge discharge platform 9, the traveling traverse zone Z5 and the traverse zone Z6 by the transfer device 60, and the coupling / decoupling zone Z by the guide plates 38, 39.
7, the scraping zone Z8 by the scraping device 70 is set. As shown in FIGS. 8 and 9, the transfer device 60 slides the scrap steel wheel 30 in the actual vehicle state, which has been detached from the cable wire 11, on the return path 7 in which the disengagement guide plate 39 in the coupling / disengagement zone Z7 is installed. A traveling traverse device 61 that conveys the waste to the dump site 8, a traverse device 62 that laterally moves the scrap steel car 30 that has been thrown away to the outbound track 6, and the empty steel car 30 that is empty in the outbound track 6 It is composed of a traveling traverse device 63 that conveys the connecting guide plate 38 to the installed position. The traveling traverse devices 61 and 63 can be constructed by using, for example, a chain conveyor, and the traverse device 62 can be constructed by reciprocating a table by a driving means.

Further, the scraping device 70 is shown in FIG. 14 and FIG.
As shown in FIG. 5, it is composed of a tipler 71 having a divided return path 7, a motor 72 for rotationally driving the tipler 71, and 73 is a guide roller. In addition, in FIG. 3 and FIG. 4, 80 has shown the secondary winding concrete interception equipment.

The operation description of the cable-pulling type slip transport system having the above-mentioned configuration is as follows. The cable wire 11 of the cable wire circulating drive device 10 is cyclically moved between the movable scraping loading platform 40 and the slipping discharging platform 9 by the driving of the endless winches 12 and 13, and accordingly, a large number of scrap steel wheels connected to the cable wire 11 are provided. 30 ... are continuously circulated. Further, when the mobile scrap loading platform 40 advances due to the progress of excavation, the cable wire 11 is moved by moving the movable parallel wheel group 22 of the cable wire extra-winding device 20 to the fixed parallel wheel group 21 side. The cable wire 11 can be freely advanced without being connected to the cable wire 11 in a section of a predetermined distance that is fed out. When the section of the predetermined distance is exceeded, a separate extension cable wire can be connected to the cable wire 11 to cope with a simple tunnel excavation process.

In the cable wire extra winding device 20,
When the mobile scrap loading platform 40 moves forward,
The group 22 of movable side-by-side wheels is pulled by the cable wire 11 and moves on the rail in the direction of approaching the group 21 of stationary side-by-side wheels. At this time, the cable wire feeding tension device (roller 25, cable wire 26, cable drum 2
7, the reduction gear unit 28, and the motor 29) are arranged in parallel with each other while applying a tension force in a direction opposite to the moving direction in synchronism with the moving speed of the group of movable parallel-installed wheels 22. The movement of the wheel group 22 is controlled. Further, when the mobile scrap loading platform 40 moves backward, the cable wire feeding tensioning device synchronizes with the moving speed of the mobile wire arranging wheel group 22.
Is towed in the direction away from the fixed side-by-side wheel group 21.

After moving the movable scrap loading platform 40 along with the advance of the scrap loading equipment 1 installed near the excavation position of the face, the reciprocating tracks 6, 7 are provided by a track fixing means (not shown) provided on the platform 40. Hold and fix. In this case, as described above, the cable wire 11 is unwound by the cable wire pre-winding device 20 according to the advance distance of the platform 40, and after the platform 40 is fixed, the slack of the cable wire 11 is removed by the tension wheel 16. .

On the movable scrap loading platform 40, the scrap steel wheel 30 arrives at the coupling / separation zone Z3.
The cable wire clamp mechanism 32 is actuated by the detachment guide plate 39 of the outward path 46, the cable wire 11 is released, and the traveling traverse device 51 guides the traveling traverse zone Z1 to the traverse traverse zone Z2. Thus, it laterally moves on the return path 47 below the slipper hopper 44. Slot steel wheel 30
When the scrap reaches the lower side of the scrap hopper 44, a certain amount of scrap is thrown into the scrap steel wheel 30 by an automatic control means (not shown) installed in the scrap stacking equipment 1. When the slip-in is completed, the slip-steel wheel 30 is pushed by the slip-steel wheel pushing means (not shown).
Are extruded into the traveling traverse zone Z1, the traveling traverse device 53 travels on the return path 47, the coupling guide plate 38 operates the clamp mechanism 32, the clamp mechanism 32 couples the cable wire 11, and the slip steel wheel 30 again. Is towed by the cable wire 11 and traveled to the slipping discharge platform 9.

When the scrap steel wheel 30 loaded with the slip arrives at the coupling / separation zone Z7 on the sludge discharge platform 9, the cable wire 11 is separated by the separation guide plate 39, and the traveling traverse device 61 slides the waste zone Z8. The slip steel wheel 30 is guided to. Then, the chipping device 71 is rotated by the scraping device 70 to discharge the scraps from the scrap steel wheel 30 to the scrap dumping site 8. The scrap steel wheel 30 that has finished slipping is pushed out from the tipler 71 to the transverse traverse zone Z6 by an appropriate pushing means, moves laterally on the forward track 6 by the transverse traverse device 62 in the transverse traverse zone Z6, and then travel traverse device. 63 travels on the outward path 6 and is coupled to the cable wire 11 by the coupling guide plate 38, and the shear steel wheel 30 is pulled by the cable wire 11 again and traveled to the mobile shear loading platform 40. In this way, the pull steel wheel 30 is circulated by the cable towing. It should be noted that a plurality of scrap steel wheels 30 are provided on the cable wire 11 at substantially equal intervals according to the slip-out speed.

In the embodiment, the ends of the tracks 6 and 7 are not connected to each other, and the shift steel wheels 30 are removed from the tracks 6 and 7 on the face of the tunnel inside and outside the tunnel.
However, the end portions of the tracks 6 and 7 are connected by, for example, a semicircular track so that the tracks 6 and 7 can be moved on the track. May be.

[0022]

As described above, according to the method for carrying out the sludge in the tunnel excavation work according to the present invention, a plurality of slidable tracks traveling on a reciprocating track attached between the face of the tunnel and the dumping site outside the tunnel. Since the steel car is towed by the cable wire and circulates, and the cable wire is paid out following the extension of the reciprocating track accompanying the tunnel excavation, the following advantages are obtained. It is possible to efficiently carry out the slipping out because the slipping steel car can be circulated continuously. Since the mine air is not polluted with exhaust gas, the work safety is improved. There is no problem in operation even if there is a tunnel slope. It is possible to correspond to the extension of the operating distance as the tunnel is dug,
Moreover, the cable wire extension work and setup are easy.

[Brief description of drawings]

FIG. 1 is a plan view of a portion of a pile stacking facility side in a tunnel mine according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of a portion for transporting sludge inside or outside a tunnel according to the present invention.

FIG. 4 is a side view of the same.

FIG. 5 is a plan view of a slip loading platform portion according to the present invention.

FIG. 6 is a side view of the same.

FIG. 7 is an arrow AA of FIG. 6 showing a part of the loading device.
The front view along the line.

FIG. 8 is a plan view of a slip-discharging platform portion and a cable wire circulating drive portion according to the present invention.

FIG. 9 is a side view of the same.

FIG. 10 is a side view showing an example of a shear steel wheel and a cable wire connecting / disconnecting means.

FIG. 11 is a front view of the same.

FIG. 12 is a side view of the cable wire connecting / disconnecting means.

FIG. 13 is a rear view of the same.

FIG. 14 is a side view of the scrapping equipment.

FIG. 15 is a rear view of the same.

FIG. 16 is a plan view of a cable wire prewinding device.

FIG. 17 is a side view of the same.

[Explanation of symbols]

 1 Scraping equipment 6,7,46,47 Reciprocating track 8 Scrap dumping site 9 Scrap discharge platform 10 Cable wire circulating drive device 11 Cable wire 12,13 Endless winch 14 Circular wheel 20 Cable wire extra winding device 30 Slip steel wheel 40 Movable scrap loading platform 50, 60 Moving device 70 Scrap dumping device Z1, Z5 Traveling traverse zone Z2, Z6 Traverse traverse zone Z3, Z7 Joining / disconnecting zone Z4 Zipper stacking zone Z8 Scrap dumping zone

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Toshitaka Inoue 4-6-15 Sendagaya, Shibuya-ku, Tokyo Fujita Co., Ltd. (72) Inventor Akihiro Shimomura 4-6-15 Sendagaya, Shibuya-ku, Tokyo Fujita Co., Ltd. (56) References JP-A-60-34000 (JP, A) JP-A-60-13200 (JP, A) JP-A-60-13199 (JP, A)

Claims (3)

(57) [Claims] 1. In a method of carrying out a slip from the face of a tunnel inside a tunnel to the outside of a tunnel, a forward route and a return route are laid parallel to each other from the face of the inside of the tunnel to the outside of the tunnel, and the tracks are placed along both the tracks. Endlessly circling the cable wire, arranging a plurality of shear steel wheels on the track, connecting the cable wires to the shear steel wheel, and running the shear steel wheel by moving the cable wire, a tunnel. A method for slipping out in tunnel excavation work, characterized in that the cable wire is extended by replenishing the track in accordance with the excavation. 2. On the face of the tunnel inside the tunnel, the scrap steel wheel is disengaged from the cable wire to move from the forward track to the return track, and the scrap steel vehicle is loaded with the slip on the return track. 2. A method for carrying out a scrap of a tunnel excavation work according to claim 1, wherein a scrap steel wheel is connected to the cable wire. 3. On the outside of the tunnel shaft, the shear steel wheel is disengaged from the cable wire to move from the return path to the outward path, and the slip is discharged so that the shear steel wheel is coupled to the cable wire. The method for carrying out sludge in tunnel excavation work according to claim 1, characterized in that.