JPH02254911A - Cable laying for trough for accident prevention in telephone-tunnel - Google Patents

Abstract

PURPOSE:To lay a cable with a super workability to an accident prevention trough in a telephone-tunnel by being loaded with a rope coiler to a cable laying car having a guide section and by automatically travelling the cable laying car in coiling the rope stretched along the accident prevention trough. CONSTITUTION:A cable 7 is drawn in by an electric catapillar, etc., and pulled into a telephone-tunnel 1 in supporting the cable with a shelf roller 3. Then, an electric winch 17 is operated. When the electric winch 17 is operated, it coils up a rope 22 and a pedestal 11 will be drawn through blocks 21 and 11a with the rope 22. When a cable laying car 10 travels, the cable 7 is guided to a guide roller 15 while controlled by a guide roller 16 and is enclosed continuously into an accident prevention trough 6.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for storing and laying cables via a laying vehicle in a disaster prevention trough arranged in a tunnel.

(Prior Art) FIG. 4 is a sectional view of a tunnel in which a disaster prevention trough is installed. In FIG. 4, reference numeral 1 indicates a tunnel, and in the center of the tunnel there are pillars (standing metal objects) 2 made of L-shaped steel arranged at equal intervals. Shelf rollers 3 are rotatably attached to these supports 2. Further, on one side of the tunnel 1, other short supports (standing metal objects) 4 are arranged at equal intervals. These pillars 4
Three shelf members 5 are attached at equal intervals, and a disaster prevention trough 6 is placed on each shelf member 5.

A cable 7 is housed and laid within each disaster prevention trough 6.

By the way, when laying the cable 7 in the disaster prevention trough 6, electric caterpillars or electric rollers are installed in the tunnel 1, the electric caterpillar etc. pull the cable 7, and the cable 7 is moved by the shelf roller 3. It is being pulled into tunnel 1 while supporting it.

Conventionally, the cable 7 that has been drawn in has been lifted up by a worker and moved to the side of the disaster prevention trough 6, and then stored and laid within the trough 6.

However, when an ultra-high voltage cable is installed as the cable 7, the weight of the cable is very large, which requires a great deal of effort on the part of the operator, and may even make it impossible to lift the cable.

Therefore, recently, cables have been laid in the disaster prevention trough 6 using a laying vehicle. That is, FIG. 5 is a plan view for explaining the conventional laying method using a laying vehicle. In FIG. 5, reference numeral 8 indicates a laying wheel, and a cylindrical guide tube 9 is attached to the upper part of the laying wheel 8. The guide tube 9 has an inlet side of the cable 7 located near the cable 7 lead-in position, and an outlet side located above near the disaster prevention trough 6.

To explain the laying method using this laying vehicle 8, first, one end of the cable 7 is passed through the guide pipe 9, and then the cable 7 is passed through the disaster prevention trough 6.
Fixed to.

Next, the laying vehicle 8 is caused to travel forward as indicated by arrow A. Therefore, the cables 7 are sequentially introduced into the guide tube 9, guided toward the disaster prevention trough 6 (see arrow B), and housed within the trough 6. Therefore, the cable 7 can be laid within the disaster prevention trough 6.

(Problems to be Solved by the Invention) However, even when the laying vehicle 8 is used in this manner, conventionally the laying vehicle 8 has been moved by being pushed by a plurality of workers. Moreover, in the case of ultra-high voltage cables with large rigidity and weight, when bending them along the guide tube 9, the installation car 8
must be pressed with great force. For this reason, even if a laying vehicle is used, it has not been possible to significantly reduce the labor of the worker.

The present invention has been made to solve these problems, and an object of the present invention is to provide a method that allows cables to be laid in a disaster prevention trough in a tunnel with good workability without requiring labor from the workers. .

(Means for Solving the Problem) The present invention mounts a rope winding device on a laying vehicle having a guide portion, and uses this rope winding device to wind up a rope stretched along a disaster prevention trough to move the laying vehicle. The cable is drawn in while running and is guided to the disaster prevention trough by a guide section for storage and installation.

(Function) The laying vehicle is automatically run by winding the rope using the rope winding device.

Therefore, the cable can be stored and laid in the disaster prevention trough by driving the laying car without pressing it and pulling it into the tunnel by the guide part.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view for explaining the method of the present invention, and FIG. 2 is a plan view for explaining the method.

In these figures, 1 indicates the tunnel, and inside the tunnel 1 there is L.
Supports (standing metal objects) 2 made of shaped steel are arranged at equal intervals. Shelf rollers 3 are rotatably attached to these supports 2. On the other hand, on one side of the tunnel 1, other short supports (standing metal objects) 4 (see FIG. 2) are arranged at equal intervals. Shelf members 5 are attached to these pillars 4, and disaster prevention troughs 6 are placed on these shelf members 5.

The laying vehicle 1o has a frame structure made of bar material, and casters 12 are attached to the lower surface of a lower base 11 so that it can run. A guide section 1 is provided on the upper part of the laying vehicle 10.
3 is provided. This guide portion 13 includes a pair of support frames 14.14 arranged in parallel, and these support frames 14.14.
It consists of a plurality of guide rollers 15 rotatably supported between the support frames 14 and another plurality of guide rollers 16 rotatably attached to one support frame 14 along the vertical direction.

Now, an electric winch 17 as a rope winding device is fixedly mounted on the base 11 of the laying vehicle 1o, and a winding drum 18 is arranged behind the winch 17. Also,
Further behind the winding drum 18, a DC battery 19 is arranged as a power source for the electric winch 17. This electric winch 17 includes a receiving section, and is activated and stopped by an operator operating a communication device 20. A pulley 21 is positioned in front of the laying vehicle 10 in the traveling direction, for example, at a distance of about 30 meters. This pulley 21 is rotatably supported within the tunnel 1 by appropriate means. This pulley 2
A rope 22 is wound around 1. The rope 22 is wound around a pulley 11a attached to the base 11, and one end thereof is fixed by appropriate means, and the other end is wound around an electric winch 17 and fixed to the winding drum 18. There is. This rope 22 is stretched along the disaster prevention trough 6.

Next, the method of the present invention will be explained. That is, first, cable 7
is pulled by an electric caterpillar or the like and supported by shelf rollers 3 and pulled into the tunnel 1.

Next, as shown in FIG.
Fix it via 3. Further, the end of the cable 7 is placed on the guide roller 15 of the guide section 13.

Next, the transmitter 20 is operated to operate the electric winch 17. When the electric winch 17 operates, the rope 22 is wound in the direction of the arrow as shown in FIG. 1, so that the base 11 is pulled by the rope 22 via the pulleys 21 and 11a. Therefore, the laying vehicle 10 automatically travels along the disaster prevention trough 6.

When the laying vehicle 10 runs, the cable 7 is connected to the guide roller 1
6 and guided by guide rollers 15, and continuously stored in the disaster prevention trough 6. Therefore, cable 7
can be partially installed in the disaster prevention trough 6.

When the laying vehicle 10 travels close to the pulley 21, the electric winch 17 is stopped by operating the transmitter 2o.

Thereafter, the pulley 21 is further supported forward, the laying vehicle 10 is automatically run and stopped in the same way, and the cable 7 is repeatedly stored in the disaster prevention trough 6. Therefore, the cable 7 can be completely laid in the disaster prevention trough 6.

In this example there are two pulleys 21. Since lla is used, the laying vehicle 10 can be run with approximately 1/2 the tensile force.

Note that the rope 22 wound by the electric winch 17 is wound around a winding drum 18.

In the above embodiment, if the weight of the cable 7 is not so large, a guide tube (see FIG. 5) may be used in place of the guide portion 13.

In addition to the electric winch 17, a traction device, an electric caterpillar, etc. can also be used as the rope winding device.

Note that one end of the rope 22 may be simply fixed in the disaster prevention trough 6 in front of the laying vehicle 10 in the traveling direction by an appropriate means without being connected to the connecting portion 11a of the base 11, and the rope 22 may be wound up. The laying vehicle 1o may also be made to travel.

(Effects of the Invention) As explained above, a rope winding device is mounted on a laying vehicle having a guide section, and this winding device winds up a rope stretched along a disaster prevention trough to automatically move a laying vehicle. Since the cable is made to run, the labor of the worker is significantly reduced, and the cable can be laid in the disaster prevention trough in the tunnel with good work efficiency.

[Brief explanation of drawings]

1 and 2 are a front view and a plan view for explaining the method of the present invention, FIG. 3 is a plan view showing how the cable is fixed to the disaster prevention trough, and FIG. 4 is a diagram showing the arrangement of the disaster prevention trough. FIG. 5 is a sectional view of a tunnel in which a cable is installed, and a plan view showing a conventional cable laying method using a cable laying vehicle. 1--1-----------Cunnel, 2.4-11--Strut, 6--------Disaster prevention trough, 7----------- --Cable, 10--1--- Laying vehicle, 13---1--Guide section, 17---Electric winch, 21--1--
---Pulley, 22--111--Rope. (1 other person) Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] A disaster prevention trough in a tunnel, in which a cable is drawn into the tunnel along the disaster prevention trough, a laying vehicle having a guide section is run along the disaster prevention trough, and the cable is continuously guided into the disaster prevention trough by the guide section. In the cable laying method, the cable laying vehicle is equipped with a rope winding device, and the rope winding device winds up the rope stretched along the disaster prevention trough to drive the cable laying vehicle. How to lay cables in a disaster prevention trough.