JPH10141000A - Laying method for cable laying pipe in tunnel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lay pipes easily and definitely through a tunnel with deformation, bending and curving freely along the passage for cable laying pipes by placing cable laying pipes on a plurality of carts and sequentially sending them out. SOLUTION: Passage of a tunnel comprises a first straight portion 7, a curved portion 8 changing from the last end portion of the first straight portion 7 to other direction at right angle, and a second straight line portion 9 connected to the last end portion of the curved portion 8. In this case, the curved portion 8 has a pulley attached to an angle member for smoothly moving and guiding a wire rope 47 along the passage. Moreover, winding position of the wire rope 47 of the pulley is installed below the winding position for the wire rope 47 fixed to cart. The wire rope 47 at the passing position is dislocated with the cart unit 42 passes through each block, and a cart unit 42 for pulling and guiding moves through the second straight portion 9. By doing this, the laying pipe is curved along the curved passage at the second straight line portion 9, thereby suppressing high cost and improving working efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for laying a pipe for laying a cable in a tunnel, which can easily lay a cable in a tunnel.

[0002]

2. Description of the Related Art In recent years, as a method for laying pipes for arranging cables in a tunnel, a mechanical plumbing method has attracted attention. There are two types of mechanical plumbing methods: suspension type and tow type. In each case, a unit assembled by supporting a plurality of cable laying pipes is suspended, or Since only the difference is whether or not they are placed and supported, a description will be given of a traction type as a representative. Fig. 21 (a),
As shown in (b), a V-shaped rail 50 is fixed to the lower surface in the tunnel 1. Further, a leading wheel 52 for towing including a lower roller 51 engaged with the V-shaped rail 50 is provided, and connected to the rear of the leading wheel 52 via a pair of upper and lower tie rods 53 for connection. Piping unit 54 is provided. The piping unit 54 includes a plurality of first vertical members 55 for supporting the front of the cable arranging tube 11 and a plurality of second vertical members for supporting the rear of the cable arranging tube 11. A member 56, a plurality of lateral members 57 for mounting and supporting the cable arranging tube 11 at a plurality of locations in the longitudinal direction thereof, and a guide member 58 provided with a roller 64 below and above the outside of the entrance side of the tunnel 1. And a frame member comprising an upper and lower support member 59 provided with a locking portion for locking the cable.
Make up one unit. Reference numeral 60 in the figure denotes a pair of left and right rollers 61, 61 for supporting the pipe unit 54 so that the pipe unit 54 does not fall when the pipe unit 54 falls down for some reason.
Is a horizontal member to which is attached.

[0003] Therefore, the leading vehicle 52 is put into the tunnel 1. The piping unit 54 is moved to the vicinity of the entrance of the tunnel 1 and is connected to the leading vehicle 52 via connecting tie rods 53. When the towing wire 62 connected to the leading end of the leading vehicle 52 is pulled in by the operation of the electric winch 63 and the rear end of the piping unit 54 is positioned within the entrance of the tunnel 1, the electric winch 63 is stopped. At this time, the front end of the next piping unit 54 is connected to the rear end of the previous piping unit 54, and is pulled in by the electric winch 63 as described above. By repeating this, the inside of the tunnel 1 is filled with the piping unit 54. When the inside of the tunnel 1 is filled with the piping unit 54, the leading vehicle 52 that has moved out of the tunnel 1 from the end of the tunnel 1 is removed, and then the concrete is filled in the tunnel 1 and the cable of the piping unit 54 is installed. Service pipe 1
1 will be fixed in the tunnel 1.

According to the above method, the leading wheel 52 is required, which not only increases the cost, but also connects the front end of the piping unit 54 to the rear end of the leading wheel 52 and releases the connection after the work is completed. However, it was troublesome and troublesome work. Further, when such a piping unit 54 is arranged in the curved or curved tunnel 1 path, the cable arranging pipe 11 placed on the piping unit 54 is arranged along the curved or curved path. Since it cannot be deformed into a state, the connecting portion between the cable arranging tubes 11 connected to each other before and after is bent. For this reason, this connecting part becomes a movement resistance, and the pulling force of the piping unit 54 thereafter becomes very large, and the piping unit 54 cannot be pulled in depending on the bending angle or the bending angle. Further, when a cable (electric wire) is inserted into the cable arranging pipes 11... Arranged in the tunnel 1, the cable is hooked at the connecting portion, and the cable cannot be inserted smoothly. However, it took a lot of time to arrange the cables. In particular, when the bending angle or the bending angle is steep, it becomes more remarkable.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, the present invention is intended to solve the above-mentioned problems, while suppressing the increase in cost and facilitating the work of arranging a cable arranging pipe in a tunnel. Laying method for laying a cable in a tunnel that can reliably and easily perform a work of laying a cable in a tunnel even when the tunnel is bent or curved. The point is to provide.

[0006]

According to the present invention, in order to solve the above-mentioned problems, a plurality of trucks movable along a path in a tunnel are provided, and a cable routing pipe is mounted on these trucks. A cable laying pipe laying method in a tunnel, wherein the cable laying pipe is laid along a path in the tunnel by sequentially sending out the cart group, thereby bending or bending the cable laying pipe. By freely configuring, the cable arranging pipe can be deformed along the path in the tunnel.

[0007] By providing a guide member for preventing the carriage from lifting, the cable placement pipe is bent when the carriage carrying the cable placement pipe is fed, and the front or rear of the carriage becomes bent. When the concrete is filled and the cable laying pipe is fixed after the bogie is mounted, the guide member reliably prevents the front or rear of the bogie from floating due to the concrete filling pressure. Thus, the cable arranging pipe can be maintained in a predetermined posture.

[0008] After a rail for moving and guiding the bogie along the route in the tunnel is laid in the tunnel, the bogie is sequentially fed into the rail, and the bogie group is fixed by filling the rail with the bogie. The cable laying pipe is laid along the path in the tunnel by sending the cable laying pipe to the truck group extending from the beginning to the end of the tunnel. By adopting a configuration in which trucks on which cable routing tubes are not loaded are sequentially fed, the delivery force required when feeding is significantly reduced compared to a configuration in which trucks with cable routing tubes are loaded sequentially. can do. Then, after the trucks are sequentially fed, the cable arranging tube, which is bendable or bendable, is sent out to the bogie group, so that the feeding force of the cable arranging tubes at this time is used for the cable arranging as described above. Compared to a configuration in which the carriage on which the tubes are mounted is sequentially fed, the size can be dramatically reduced. Moreover, since the bogie on which the cable laying pipe is not mounted is light in weight, even if the tunnel is bent or curved, it can be easily moved smoothly along the bent or curved path.

[0009] A tip member having a tapered shape is attached to a tip end in the feeding direction of the cable laying pipe, and the cable laying pipe has a path width at least on a bogie arranged at a bent portion or a bent portion in the tunnel. By providing the bogie with a guide portion for preventing contact with moving outward in the direction, even when the tunnel path is a bent or curved path, the guide action of the tapered tip member can be achieved. In addition, the cable arranging pipe can be reliably moved along the path. During this movement, the cable laying tube can be prevented from coming off the path by the contacting action of the guide portion.

[0010] By providing a guide member for preventing the bogie from floating, the cable laying tube is bent when the cable laying tube is fed.
The front or rear of the bogie is lifted, or the front or rear of the bogie is lifted by the filling pressure of concrete when filling concrete and fixing the cable laying pipe after laying the cable laying pipe. Can be reliably prevented by the guide member, and the cable arranging tube can be maintained in the predetermined posture.

[0011]

FIG. 14 is a schematic view showing a first embodiment of a pipe laying method for arranging cables in a tunnel. First, a stand 2 is formed on the front side and the rear side of the tunnel 1, and a working platform 3 is installed in the stand 2. Thereafter, a concrete groove having a U-shaped cross section, that is, a rail 6 (see FIG. 7), for guiding the movement of the bogie 39 in the tunnel 1, is provided. Thereafter, a wire rope 47 for transporting the bogie 4 is passed from the pier 2 on the front side of the tunnel 1 to the pier 2 on the rear side, and the wire rope 47
Is connected to the electric winch 41. From the front side (entrance side) of the tunnel 1, several tens of flexible synthetic resin cable arranging tubes 11 having flexibility and being freely bendable or bendable are placed on a carriage 39, and the tens of these tens of tubes are placed. The truck unit 42 having the cable laying pipe 11 mounted thereon is fixed to the wire rope 47. In this state, the electric winch 41 is driven to move the carriage unit 42 into the tunnel 1, and the electric winch 41 is stopped. Next, the next truck unit 42 is prepared, and is placed on the front end of the cable laying pipe 11 placed on the truck unit 42 and the first truck unit 42 moved into the tunnel 1. The rear end of the cable arranging tube 11 is connected by, for example, the method shown in FIG. 8, and the second bogie unit 42 is fixed to the wire rope 47 in the same manner as described above. When driven, the second carriage unit 42 is moved into the tunnel 1 and the electric winch 41 is stopped. Subsequently, a third carriage unit 42 is prepared,
The above operation is repeated, and when the inside of the tunnel 1 is filled with the bogie unit 42, the feeding operation of the bogie unit 42 ends. Thereafter, a temporary continuity test is performed to confirm the environment in the cable arranging pipe 11, and if there is no problem, the concrete filling in the tunnel 1 is performed in advance or after the feeding operation of the bogie unit 42 is completed. Concrete is filled through a pipe (not shown), and the cable arranging pipe 11 is fixed. After that, a temporary continuity test is performed again to confirm the final environment of the cable arranging pipe 11, and if there is no problem, the working platforms 3, 3 and a sending-out device 10, which will be described later, are removed. Is returned to the original state and the operation is completed. FIGS. 8 and 1 show the flexible hard cable 11 for cable installation made of a synthetic resin.
No. 0 is used, but any shape may be used as long as it is freely bendable or bendable.

The cart 39 is, as shown in FIG.
Since it has substantially the same configuration as a long carriage 4 described later, the same components are denoted by the same reference numerals, and only different portions will be described. As shown in the figure, rollers 43 provided at the lower portion are fixed to two front and rear portions of a lower surface of a U-shaped bracket 44 fixed to four corners of the carriage 39, and eight rollers per one carriage 39 are provided. 4
3 is provided. As shown in FIGS. 17 to 19, a pair of upper and lower L-shaped angles 45,
An L-shaped bracket 46 is fixed to the left and right centers of the pair 45 and a pair of left and right holes 4 formed in the bracket 46.
A U-shaped tube 48 for fixing the wire rope 47 is attached to 6A and 46A. When fixing the wire rope 47 to the carriage 39 via the U-shaped tube 48, first, two nuts 49, 49 screwed to the upper end of the U-shaped tube 48 shown in FIG. Remove U-tube 48 from 46. Thereafter, the U-tube 48 is attached to the bracket 46 with the wire rope 47 positioned inside the U-tube 48.
To the bracket 46 by tightening the two nuts 49, 49.
Can be fixed. Reference numerals 71 and 71 shown in FIG.
Washer.

The path of the tunnel 1 is defined by a first straight line 7
And a curved portion 8 whose direction is changed by 90 degrees from the end of the first straight portion 7, and a second straight portion 9 connected to the end of the curved portion 8. As shown in FIGS. 15 and 17, a plurality of pulleys 70 for smoothly moving and guiding the wire rope 47 along a route are attached to the curved portion 8 to an angle member 37 described later. And the winding position of the wire rope 47 of this pulley 70 is
Since the bogie 39 (bogie unit 42) passes through each pulley 70 as shown in FIG. 17, since the bogie 39 is located below the fixed position of the wire rope 47 fixed to the bogie 39, as shown in FIG. The wire rope 47 wound around the pulley 70 corresponding to the passing position comes off the pulley 70. And wire rope 4
Dolly 39 (trolley unit 4) guided by pull-in 7
2) moves the second straight portion 9, whereby the cable arranging pipe 11 is smoothly curved along the curved path of the second straight portion 9. Reference numeral 38 shown in FIG.
9 is a guide member for preventing the bogie unit 9 (bogie unit 42) from rising.

Next, a second embodiment of the method for laying a pipe for arranging cables in a tunnel will be described with reference to the schematic diagram shown in FIG. In the first embodiment, the bogie units 42 are sequentially fed into the tunnel 1, but in the second embodiment, the bogies 4
Or 5 and the cable arranging pipe 11 are to be arranged separately. As shown in the figure, first, a stand 2 is formed on the front side and the rear side of the tunnel 1, and a working platform 3 is installed in the stand 2. After that, concrete grooves having a U-shaped cross section, that is, rails 6 (see FIG. 7) for moving and guiding the long bogie 4 and the short bogie 5 having different dimensions are put into the tunnel 1. With respect to the guide width L1 of the left and right protrusions 6A, 6A of the rail 6, a long carriage 4
Alternatively, by setting the left and right outer widths L2 of the rollers 12, 12 as a pair of left and right rotating bodies provided at the lower portion of the short carriage 5 to be slightly smaller, the moving path of the rollers 12, 12 does not largely deviate, and The rollers 12, 12 can be guided in a smooth state with some play on the rail 6. Although the left and right outer sides of the rollers 12, 12 below the long carriage 4 or the short carriage 5 contact the rail 6, the long carriage 4 or the short carriage 5 is configured to move and guide the long carriage 4 or the short carriage 5. 5, lower roller 12, 1
The left and right inner sides of the long carriage 4 contact the rail 6.
Alternatively, the shape of the rail 6 may be changed so as to guide the movement of the short carriage 5, or a locking portion for guiding the movement by locking the rollers 12, 12 below the long carriage 4 or the short carriage 5 thereto. The rail 6 may be configured from those provided with the above, and the shape of the rail 6 is not limited to these.

As shown in FIG. 2, the path of the tunnel 1 includes a first straight portion 7 and 9
It comprises a curved portion 8 whose direction is changed by 0 degree and a second straight portion 9 connected to the end of the curved portion 8. After the rail 6 is driven, the short bogies 5 are attached to the curved portion 8 one by one. Installed manually and fixed with angles. After that, the long bogie 4 is continuously installed on the first straight portion 7 and the second straight portion 9 by the feeding device 10 described later. Truck 4 in tunnel 1
The installation order of 5 is not limited to this. Although the curved portion 8 is formed as a curved portion that is bent in a bow shape, the present invention can be applied to any shape, such as a bent portion bent at a right angle from the first linear portion 7. In FIG. 1, the path direction of the second linear portion 9 is the same as the path direction of the first linear portion 7 for the sake of simplicity, but actually the path direction of the second linear portion 9 in FIG. From the front surface to the rear surface.

In FIG. 1, a short carriage 5 is inserted into the tunnel 1.
When the installation of the long carriage 4 with respect to the first linear portion 7 is completed, the flexible synthetic cable laying tube 1 made of a hard synthetic resin that is bendable or bendable from the entrance side of the first linear portion 7.
1 is continuously delivered by a delivery device 10 to be described later and is placed on the trolleys 4 and 5 and the work of delivering the long carriage 4 to the second linear portion 9 is performed in parallel, so that the cable is laid in the tunnel. The time can be reduced. When the installation of the short bogie 5 and the long bogie 4 in the tunnel 1 is completed, the delivery of the cable laying tube 11 may be started. Can be changed freely. When the path of the tunnel 1 is composed of only a straight path, only a cable laying tube that does not bend or bend may be used, or may be used in combination with a flexible cable laying tube 11.

After the cable laying tube 11 has been sent out, a tentative continuity test is performed, and the cable laying tube 1
After confirming the environment in the tunnel 1, if there is no problem, the concrete is filled in the tunnel 1 through a concrete filling pipe (not shown) provided beforehand or after the installation of the cable laying pipe 11 is completed. Then, the cable arranging pipe 11 is fixed.
After that, a temporary continuity test is performed again, and the cable arranging tube 1
A final check of the environment in 1 is made, and if there is no problem, the working platforms 3 and 3 and a sending-out device 10 described later are removed, and the erection is returned to the original state to complete the work.

The long carriage 4 is shown in FIGS.
As shown in (b), the front frame member A and the rear frame member B are connected by a number of tubes 19 in the front-rear direction. The pipes 19 are used as connecting members.
It is used as a guide member for guiding line contact when inserting the cable arranging tube 11, and the cable arranging tube 11
Movement resistance can be reduced. The pipe 19 ...
If the surface of the cable is subjected to a process for reducing the relative movement resistance with respect to the cable arranging tube 11, the pushing force of the cable arranging tube 11 can be further reduced. The pipe 19
By using a rotatable roller or the like as a guide member in place of the above, the movement resistance of the cable installation tube 11 can be further reduced. Since the front frame member A and the rear frame member B have the same configuration, if only the front frame member A is described, the metal lower plate 13 provided with a pair of left and right rollers 12 on the lower surface is substantially inverted U. The first vertical plate member 14 formed in a character shape is welded, and the vertical plate portion 14 of the first vertical plate member 14 is welded.
Two second vertical plate members 15, 15 are welded between A, 14A. Three horizontal plate members 16 having dimensions protruding laterally and laterally outward from the vertical plate portions 14A, 14A are welded to the vertical plate portions 14A, 14A of the first vertical plate member 14 at equal intervals, and these are welded. The third connecting the horizontal plate members 16 in the vertical direction
Inclined plate portion 1 that connects vertical plate portion 17A to the upper end of first vertical plate member 14 or the left and right end portions of lower plate member 13 in an inclined direction.
7B are welded to the left and right ends of the horizontal plate 16 and the upper end of the first vertical plate 14 or the left and right end of the lower plate 13 to form the front frame member A. I have. Reference numeral 20 shown in the figure denotes a connecting pipe for connecting the trucks, and as shown in FIG.
After fitting the pipe 21 to the pipes 0 and 20, pins (not shown) are vertically penetrated through through holes 20 A... Formed in the pipe 21 and the connection pipes 20 and 20, thereby connecting the pipes 20 and 20. Can be connected and fixed. 2
2A or 22B is a reinforcing pipe welded to the upper end or the lower end, and does not move upward or downward off the moving path when the cable laying pipe 11 is inserted. It functions as a guide part for doing so. Similarly, 23 is a reinforcing pipe welded to the lateral side as well as the pipe 1 for arranging the cable.
When the cable 1 is inserted, the cable arranging tube 11 functions as a guide for preventing the cable arranging tube 11 from moving out of the movement path and moving left and right. The reinforcing pipe 22
By forming A, 22B and 23 in a pipe shape,
Although the weight is reduced, it may be formed in a plate shape. The specific configuration of the reinforcing pipes 22A, 22B and 23 is as follows.
It is not limited to these.

As shown in FIG. 6, the short bogie 5 is set to have a dimension which is approximately half the length of the long bogie 4 in the front-rear direction, and the other components are the same. The same numbers are assigned to the four components, and the description is omitted.

As shown in FIG. 8, the cable arranging tube 11 has an inner surface formed substantially flat, and an outer surface formed with a protrusion 11A for obtaining a shape-retaining strength. As shown in FIG. 9, a conical tip member 24 that tapers toward the tip is externally fitted to the tip of the first cable routing pipe 11 to be fed into the tunnel 1, and It is ensured that the distal end of the cable arranging tube 11 can enter the specific guiding space 25 (see FIG. 3) among the formed multiple guiding spaces 25. still,
On the rear inner surface of the tip member 24, a cable
A plurality of projections 24 are formed to fit into the recesses 11B on the outer surface of the cable 1 so that the distal end member 24 is not easily detached from the cable arranging tube 11.
Is fixed to the distal end of the cable arranging tube 11 by using a tape or the like, whereby the distal end member 24 can be more reliably prevented from coming off while the cable arranging tube 11 is being pushed. Also, 26 shown in the figure is a cable arranging pipe 1.
This is a straight pipe joint for connecting the straight pipes 1 and 11 to each other. After this straight pipe joint 26 is externally fitted to the cable installation pipes 11 and 11, a sealing process is performed using a sealing member (not shown). At the same time, by wrapping the fixing tape, the cable arranging tubes 11, 11 can be fixed in a connected state. A plurality of protrusions 26A projecting inward are formed on the inner surface of the straight pipe joint 26,
These projections 26A fit into the recesses 11B on the outer surface of the cable installation tube 11. FIG. 10 shows another example of the cable arranging tube 11 and the straight pipe joint 26, which are the cable arranging tube 11 in which the outer peripheral surface of the protrusion 11A is formed into a spherical surface. The straight pipe joint 26 is formed in a corrugated cross section. The shape of the cable pipe 11 and the straight pipe joint 26 and the cable pipe 1
The specific method of connecting the ones is not limited to these.

The delivery device 10 for forcibly moving the long carriage 4 and the cable arranging tube 11 will be described. As shown in FIGS. Four cable installation pipes 1
1. A fixed side vice 28 for fixing is attached, two movable vices 29 are attached to the other side in the longitudinal direction, and a drive for moving the movable side vise 29 in the longitudinal direction is provided. The feeding device 10 is configured by providing a mechanism 30. The fixed side vises 28... Are not movable in the longitudinal direction (front-back direction), but are movable in the left-right direction. The movable vise 29 is a pair of left and right slide rails 3 mounted on a fixed frame 27.
1 and 31 are fixed to a support base 33 slidably supported on a pair of front and rear support members 32. The drive mechanism 30 separates the bracket 32 from the fixed-side vice 28, and the forward hydraulic cylinder 34 for moving the bracket 33A fixed to the lower surface of the support base 33 to the fixed-side vice 28 side. Reverse hydraulic cylinder 35 for moving to the side, and the two hydraulic cylinders 3
A hydraulic pump and a hydraulic tank for supplying hydraulic pressure to the hydraulic cylinders 4, 35, and a hydraulic pressure from the hydraulic pump is supplied to only one of the two hydraulic cylinders 34, 35;
And a hydraulic device 36 internally provided with a valve for discharging the hydraulic pressure in the other hydraulic cylinder.
With the delivery device 10 configured in this manner, the long carriage 4
Will be described with reference to FIGS. 13 (a) to 13 (g). For the sake of simplicity, the four fixed vises 28 are shown only as one fixed vise 28, and the two movable vises 29 are shown as one movable vice 29. Only vise 29 is shown. First, the connecting pipe 20 below the long bogie 4 is moved to a position where the connecting pipe 20 can be sandwiched by the fixed-side vises 28..., And as shown in FIG. By closing, the front side of the connection pipe 20 is fixed. Closing or opening the fixed-side vice 28 or the movable-side vice 29 involves manually rotating the vice manual handle 28A or 29A. May be used.
Next, as shown in FIG. 13B, the rear side of the connecting pipe 20 is fixed by closing the movable vise 29. From this state, as shown in FIG.
8 are opened, the connecting pipe 20 is advanced by the extension operation of the forward hydraulic cylinder 34 (at this time, the reverse hydraulic cylinder 35 is shortened), as shown in FIG. After that, as shown in FIG. 13 (e), the fixed-side vise 28... Is closed to fix the connecting pipe 20, and as shown in FIG. 29 and open the reverse hydraulic cylinder 3 as shown in FIG.
5 is extended (at this time, the hydraulic cylinder 34 for forward movement is shortened), the movable vise 29 is returned to the original position, and the first delivery of the long bogie 4 is completed, and FIG. The second delivery of the long carriage 4 is started from the state shown. When the cable arranging pipe 11 is sent out by the feeding device 10, the fixed-side vice 28...
9 is replaced with the delivery device 10. In this case, by providing the fixed-side vise 28... And the movable-side vice 29. So that the position can be changed in the vertical direction, the height of the guide space 25 into which the cable pipe 11 is to be inserted can be increased. It is possible to perform the feeding operation of the cable arranging tube 11 easily and quickly.
The specific configuration of the delivery device 10 is not limited to this. In the state of FIG. 13E, the connecting pipe 20 of the rear bogie is connected and fixed via the pipe 21.
In addition to forcibly pushing and moving the long carriage 4 and the cable arranging tube 11 by the delivery device 10 as described above, an electric winch or the like may be used, or the delivery device 10 may be pulled and moved. Apparatus 10
By applying a pulling movement force by an electric winch or the like in addition to the pushing movement force by the above, the long carriage 4 and the cable arranging pipe 11 may be arranged along a longer path.

As shown in FIG. 7, the rail 6 has an L-shaped angle member 3 in a posture along the left-right width direction thereof.
7 are buried at a set distance, and a pair of left and right guide members 38, 38 for preventing floating of the long carriage 4 and the short carriage 5 are screwed into these angle members 37,. Good. In this case, when the cable arranging tube 11 is being fed, the cable arranging tube 11
Is bent, and the front or rear of the long bogie 4 or the short bogie 5 rises, or after the cable arranging tube 11 is arranged, concrete is filled in the tunnel 1 and the cable arranging tube 11 is moved. When fixed, the guide members 38, 38 can reliably prevent the front or rear of the long bogie 4 or the short bogie 5 from rising due to the filling pressure of the concrete. The guide members 38, 38 are configured to contact the upper ends of the rollers 12 of the long carriage 4 and the short carriage 5, but contact the upper parts of the long carriage 4 and the short carriage 5 to contact the upper carriage 4 and the short carriage 5. A guide member may be provided on the inner surface of the upper part of the tunnel 1 so as to prevent the front or rear of the 5 from rising, and the shape and the installation position of the guide member can be freely changed.

[0023]

According to the first aspect of the present invention, it is not only possible to eliminate the need for a leading vehicle as in the prior art, but to suppress an increase in cost, but also to perform a connecting operation and a disconnecting operation between the leading vehicle and the bogie. Can be dispensed with, and work efficiency can be improved. In addition, even when the cable arranging pipe is arranged in the bent or curved tunnel route, the connecting portion between the cable arranging tubes does not bend, and the cable arranging tube is arranged along the tunnel route. This makes it possible to smoothly transport the bogie into the tunnel without causing significant movement resistance at the connection part of the cable routing pipes, facilitating the work of laying the cable routing pipes in the tunnel. And it can be performed reliably.

According to the second and fifth aspects of the present invention, by providing a guide member for preventing the carriage from being lifted up, the cable laying tube may be bent during the placement of the carriage or after the placement of the carriage. Can be avoided, and the cable can always be easily inserted into the cable installation pipe.

According to the third aspect, after the carts are sent out and arranged in the tunnel, the cable arranging pipes are sent out to the arranged carts, so that they can be all at once. The feeding force can be made smaller than that of the feeding device, and the size of the feeding device can be reduced accordingly. Also, with the same feeding force, it is possible to feed the cable laying pipe into a longer tunnel than in the conventional case, and it is possible to shorten the working time. In particular, it is possible to reliably and easily feed the cable arranging pipe into a tunnel having a path having a steep bending angle or a bending angle, and to perform the cable arranging pipe into a tunnel having any path. Can be sent by unmanned work, that is, mechanical work, not by manual work. In addition, it is not necessary to use a conventional leading vehicle and to suppress the increase in cost, and it is also possible to eliminate the work of connecting and disconnecting the leading vehicle and the bogie. Efficiency can be improved.

According to the fourth aspect, even if the feeding route of the cable laying pipe is slightly shifted, the tapered tip member can be positioned within an allowable range in which the feeding route can be reliably moved. Further, by providing the guide portion, it is possible to prevent the cable arranging tube from largely deviating from the feeding route, so that the cable arranging tube can be more reliably sent into the tunnel. .

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view schematically showing a second embodiment of a method for laying a pipe for arranging cables in a tunnel.

FIG. 2 is a schematic diagram showing a route of the tunnel in FIG. 1;

FIG. 3 is a front view of a long carriage.

FIG. 4 is a side view of the long carriage.

5A is a partially cutaway bottom view of a long bogie, and FIG. 5B is a partially cutaway plan view of a long bogie.

FIG. 6 is a side view of a short carriage.

FIG. 7 is a longitudinal sectional front view showing a relationship between a rail and a bogie in a tunnel.

FIG. 8 is a partially cutaway side view showing a connected state of the cable arranging pipes.

FIG. 9 is a partially cutaway side view showing a state in which a distal end member is externally fitted to a distal end portion of a cable arranging tube.

FIG. 10 is a partially cut-away side view showing a connection state between cable arranging pipes having different shapes.

FIG. 11 is a partially cutaway side view of the delivery device.

FIG. 12 is a plan view of a delivery device.

FIGS. 13A to 13G are schematic explanatory views showing the operation of the feeding device.

FIG. 14 shows a first method of laying a pipe for laying a cable in a tunnel.
Longitudinal side view showing the outline of the embodiment

FIG. 15 is a schematic diagram showing a curved path in the tunnel of FIG. 1;

FIG. 16 is a side view of a cart.

FIG. 17 is a longitudinal sectional front view showing a relationship between a rail and a bogie in a tunnel.

FIG. 18 is a side view showing a mounting portion of the roller.

FIG. 19 is a perspective view showing a roller mounting portion.

FIG. 20 is a perspective view showing a fixing portion of the wire rope.

21A is a side view showing a conventional pipe laying method for arranging cables in a tunnel, and FIG. 21B is a front view showing a conventional piping unit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Tunnel 2 Stand 3 Work platform 4 Long bogie 5 Short bogie 6 Rail 6A Projection 7 First straight part 8 Curved part 9 Second straight part 10 Feeding device 11 Cable pipe 11A Projection 11B Concave part 12 Roller (rotating body) 13 Lower plate 14 First vertical plate 14A Vertical plate 15 Second vertical plate 16 Horizontal plate 17A Third vertical plate 17B Inclined plate 18 End plate 19 Tube 20 Connecting tube 20A Through hole 21 Pipe 22A, 22B Reinforcement Pipe (guide) 23 Reinforced pipe (guide) 24 Tip member 24A Projection 25 Guide space 26 Straight fitting 26A Projection 27 Fixed frame 28 Fixed vise 29 Movable vise 28A, 29A Handwheel 30 Drive mechanism 31 Slide rail 32 Support member 33 Support base 34 Hydraulic cylinder for forward movement 35 Hydraulic cylinder for reverse movement 36 Hydraulic device 37 Angle member 38 Guide member 39 Cart 41 Electric winch 42 Cart unit 43 Roller 44 Bracket 45 L-shaped angle 46 Bracket 47 Ear rope 48 U-shaped pipe 49 Nut 50 V-shaped rail 51 Roller 52 Leading vehicle 53 Tie rod 54 Piping unit 55 First vertical member 56 Second vertical member 57 Horizontal member 58 Guide member 59 Vertical support member 60 Horizontal member 61 Roller 62 Wire 63 Electric winch 64 Roller 70 Pulley 71 Washer L1 Guide width L2 Left and right outer width

Claims (5)

[Claims] 1. A plurality of trucks movable along a route in a tunnel are provided, and a cable laying tube is placed on the trucks and the trucks are sequentially sent out, so that the trucks are sequentially sent out along the route in the tunnel. What is claimed is: 1. A method for laying a cable in a tunnel, comprising laying the cable laying pipe, wherein the cable laying pipe is bent or bent freely. 2. The method according to claim 1, further comprising providing a guide member for preventing the bogie from lifting. 3. A rail for moving and guiding a bogie along a route in the tunnel is laid in the tunnel, and the bogies are sequentially fed to the rail, and the bogie group is fixed by filling the rails with the bogie. After that, a cable laying pipe is laid along a path in the tunnel by sending the cable laying pipe to the truck group extending from the beginning to the end of the tunnel. . 4. A cable laying tube is attached to a bogie disposed at least at a bent portion or a curved portion in a tunnel, while a tip member having a shape tapered toward the tip is attached to a front end of the cable laying tube in a feeding direction. 4. The method of laying a pipe for laying cables in a tunnel according to claim 3, wherein the carriage is provided with a guide portion for preventing contact with the carriage from moving outward in the path width direction. 5. The method according to claim 3, further comprising the step of providing a guide member for preventing the carriage from rising.