JP3067939B2 - Telher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terhar which lifts various articles and transports them to a predetermined position.

[0002]

2. Description of the Related Art Hitherto, a telher that transports an article to a desired position by traveling a trolley having a hoisting device along a rail erected at a high place has been widely known. When the transport start end and the transport end are at a fixed position, such a terhar is configured such that a rail is laid beforehand between the two positions to reciprocate the trolley between the two positions along the rail. While carrying the conveyance of the article, for example,
In the case of adopting the segment transport means in tunnel construction, the segment lining is sequentially performed according to the excavation of the shield excavator, so that the transport end position changes and the rail must be added.

[0003] As shown in FIG. 12, a segment S is sent by a trowel B to the rear of a shield excavator A through a tunnel T, which has already been lined, and assembled by an erector C. In A, auxiliary equipment such as a hydraulic unit and a control panel, backing agent injection equipment D, and the like are installed on a bogie E following the shield excavator A. Therefore, a fixed frame F is erected on the bogie E, and a rail L having a fixed length is attached to the upper portion of the fixed frame F in the length direction of the tunnel. L employs a terhar that suspends the hoisting device H so as to run freely, receives the segment S from the toro B, and transports the segment S to the erector C.

[0004]

However, the cart E
Since a fixed frame F for erection of the rails F must be erected to provide a terhar on the top, not only the height of the entire bogie is increased, but also the work may be hindered by the fixed frame F. In addition, since the rail L is laid in a straight line, it is not possible to cope with the construction of a curved tunnel. In this case, the mounting position of the entire Telhar to the bogie is changed or a curved rail is adopted. There was a problem that it had to be done. An object of the present invention is to provide a Telha that can completely solve such a problem.

[0005]

According to a first aspect of the present invention, there is provided a tel-her with a shield.
Segment assembled according to excavator tunneling
Attach hanging equipment on the lower surface of the lining at regular intervals in the length direction,
In a terher, an upper flange of a rail made of an I-beam having a certain length is movably suspended between these hanging tools, and a hoisting device is movably suspended on a lower flange of the rail. It has a structure in which it is divided into lengths shorter than the above-mentioned hanger spacing, and ends of the divided rails that are opposed to each other are freely bent in the left-right direction.

According to a second aspect of the present invention, there is provided a Telher according to the first aspect.
A hanging tool is attached to the lower surface of the upper surface of the segment lining at a predetermined length from the rear end of the excavator at regular intervals in the tunnel length direction. In addition,
The number of rails is not limited to one, and two rails may be arranged so as to be able to run freely in a parallel state.

[0007]

The hanging device is attached to the lower surface of the segment lining at regular intervals from the transport start end to the transport end of the article. In this case, when the transport path is a curve, it is attached at regular intervals on the curve, and the upper flange of the rail made of the I-beam is engaged with and supported by these suspenders in a freely movable manner. At this time, the rail is refracted in the left-right direction for each length shorter than the mounting interval of the hanger, so that the rail is hung by the hanger in a state of being bent along the curved transport path, and An article can be transported from the transport start end to the transport end of the rail by the hoisting device suspended from the lower flange so as to run freely.

Further, when the transport route of a segment or the like from the rear of the tunnel to the inside of the shield excavator changes along with the excavation of the shield excavator as in the construction of a tunnel, a new segment lining to be assembled in the shield excavator is required. On the lower surface of the upper peripheral wall, attach the next suspension with a certain interval from the existing suspension at the foremost part already attached to the segment lining on the rear side, and attach the rail along the existing suspension to the front end. Is moved forward until it reaches the newly provided hanging tool.

At this time, even if the transport path formed by the plurality of hanging tools is bent, the rail is bent at the joint according to the bending, and can be moved while being reliably supported by the hanging tools. Due to the movement of the rail, the transport start end of an article such as a segment also moves forward, and the article transported to that position is transported by the hoisting device into the rear end of the shield excavator, which is the transport end.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention as a segment conveying means for constructing a tunnel. In FIG. 1, reference numeral 1 denotes a segment lining for covering a digging wall of a tunnel 12 excavated by a shield excavator 11, which is assembled according to the excavation of the shield excavator 11 by an erector 13 disposed inside the shield excavator 11. is there. In the tunnel 12 behind the shield excavator 11, a truck 14, which is provided with auxiliary equipment such as a hydraulic unit and a control panel, a backing agent injection facility, etc., is installed in the segment lining 1 following the shield excavator 11. The carriage 14 is movably disposed on a rail 15 laid on the bottom surface, and the carriage 14 is integrally connected to the shield machine 11 via a connecting member 16 to be pulled by the shield machine 11.

Reference numeral 2 is attached to the lower surface of the central portion of the upper wall of the segment lining 1 at regular intervals at a length extending from above the front end of the truck 14 to above the arrival position of the toro truck 17 traveling on the rail 15. The plurality of hanging tools 2 are on a curved line or straight line of a segment-lined tunnel, that is, a segment transport path from the toro bogie 17 to the erector 13 in the shield excavator 11. Is attached along. As shown in FIG. 2, the structure of each hanger 2 is a mounting bracket 2b detachably mounted on the inner wall of the segment lining 1 with bolts 2a, and a front gate type integrally provided on the lower surface of the mounting bracket 2b. Roller frame 2c and this roller frame
A pair of left and right rollers 2 rotatably supported on the opposing surface of 2c
d, 2d.

3 is a toro truck that has reached the equipment-equipped truck 14.
A rail consisting of an I-beam of a fixed length substantially equal to the distance from the base 17 to the erector 13 in the shield excavator 11, the upper flange 3a of which is arranged along the transport path as shown in FIG. The lower surface of both sides of the flange 3a is inserted into the roller frame 2c of the hanger 2 and is supported on the left and right rollers 2d, 2d of the hanger 2 and is suspended on the hanger 2 so as to run freely. The front end of the shield excavator 11 is integrally connected to the rear end of the shield excavator 11 by a connecting member 18 such as a cable, and the shield excavator 1 is towed.

[0013] The rail 3 is provided with the above-mentioned hanging members 2,
Short rail sections 31, 31 with a length shorter than the length interval between the two
The opposing ends of the short rail sections 31, 31 which are divided into a plurality of sections and which are adjacent to each other in the front and rear, are connected to each other by a joint 4 so as to be able to bend freely in the left and right direction to form one rail 3 having a fixed length. is there.

The structure of the joint 4 is, as shown in FIGS. 3 and 4, the upper surface of the upper flange 3a and the lower surface of the lower flange 3b at the end of one of the short rail portions 31, 31 facing each other. A part of the joint plate pieces 4a and 4b made of flat steel sheet pieces are integrally fixed by welding to the joint plate pieces 4a and 4b.
a, 4b are projected in parallel from the short rail section 31, and circular holes 4c, 4d are respectively provided in the center of the projection section, and the other short rail section 31 is provided.
The upper and lower flanges 3a and 3b are fitted between the upper and lower joint plate pieces 4a and 4b, and are fixed by welding to the center of the upper end of the upper flange 3a and the center of the lower end of the lower flange 3b by welding.
4e and 4f are loosely fitted into the circular holes 4c and 4d, respectively, so as to be relatively rotatable.

In this case, the end faces of the upper and lower flanges 3a and 3b of one short rail section 31 are cut off in a concave arc shape centering on the centers of the circular plates 4e and 4f, and the upper and lower flanges 3a of the other short rail section 31 are cut. , 3b are cut into a convex arc centered on the centers of the circular plates 4e, 4f, and without contacting the opposing end surfaces of the upper and lower flanges of the two short rail portions 31, 31, of the two short rail portions 31, 31. It enables smooth rotation in the left and right directions.

The joint plates 4a and 4b and the circular plates 4e and 4f may be fixed to the corresponding upper and lower flanges 3a and 3b by bolts without welding. In addition, circular hole 4
c, 4d and the upper and lower circular plates 4e, 4f, without overlapping, the overlapping portion of the upper and lower flanges 3a, 3b protruding from one short rail section 31 and the opposite end of the other short rail section 31 May be pivotally connected to each other by a shaft.

The short rail section 31, which is connected by the joint 4,
When 31 are refracted in the left and right directions from their joints 4
Joint plate piece 4a fixed to the end of one short rail section 31,
The outer peripheral surfaces of the circular plates 4e and 4f provided at the opposite end of the other short rail portion 31 on the inner peripheral surfaces of the circular holes 4c and 4d of 4b rotate relatively to each other while slidingly contacting each other. On the moving center line,
If there is a web 3c integrally connecting the central portions of the opposed surfaces of the upper and lower flanges 3a, 3b of the short rail portion 31, the opposed ends of the webs 3c, 3c of the two short rail portions 31, 31 abut each other. As shown in FIG. 4, the opposite ends of the webs 3c, 3c of the short rails 31, 31 are opposed to each other with the rotation center line interposed therebetween.

Reference numeral 5 denotes a hoisting device which is suspended from the lower flange 3b of the rail 3 so as to run freely. As shown in FIG. 2, a front U-shaped roller is provided on the upper end of a central shaft 5a projecting from the upper surface. A roller 5c rotatably supported on the front and rear opposing surfaces of the roller frame 5b is mounted on the upper surface of both sides of the lower flange 3b of the rail 3 so that the roller 5c is rotatably mounted on the lower surface central portion of the frame 5b. 5 is configured to be moved along the rail 3 while being suspended from the rail 3.

A case will be described in which the segment 21 is transported from the rear side of the tunnel to the erector 13 in the shield excavator 11 by the Telha configured as described above. The segment 21 is loaded on a trolley 17 traveling on a rail 15 and is transported to a rear end of a trolley 14 on which various facilities are mounted. When the toro bogie 17 stops behind the equipment-equipped bogie 14, the rail 3
By the hoisting device 5 waiting at the rear end
The segment 21 on 17 is lifted, and then the hoisting device 5 is moved forward by rolling the roller 5c on the lower flange 3b of the rail 3, and the segment 21 is transported to the erector 13, which is the transport end position.

In order to move the hoisting device 5 back and forth using the rail 3 as a guide, a motor may be mounted on the roller frame 5b, and the motor may rotate the roller 5c of the hoisting device 5, or Alternatively, the winding device 5 may be pushed forward by hand.

The segment 21 transported to the erector 13
Is removed from the hoisting device 5 and is segment-lined 1 by the erector 13 in the rear end of the shield excavator 11, while the hoisting device 5 is retracted to the rear end of the rail 3 (segment transfer start end), The next segment 21 conveyed is suspended and conveyed by the erector 13 again.

The shield excavator 11 excavates by rotating the cutter head 19, receiving the reaction force on the front end face of the segment lining 1 assembled by the erector 13, and extending the piston rod of the propulsion jack 20. ,
Each time a tunnel of a certain length is excavated, segment lining 1 for one ring is performed. Then, at the center of the upper peripheral wall portion of the newly assembled segment lining 1 on the tunnel planning line, there is a certain interval (the interval between the hanging devices 2 and 2) from the hanging device 2 which has been located at the forefront. New hanging tool 2
Attach. This hanging tool 2 is carried out by removing the last hanging tool 2 and relocating it to that position. Each time a segment lining 1 of a fixed length is formed without relocating, a new hanging tool 2 is sequentially placed. You may make it attach.

Further, a rail of a fixed length is also laid on the inner wall at the lower end of the segment lining 1 along the tunnel planning line (transport route) by adding to the front end of the rail 15 already laid. In this case, conveyance of the rail of a fixed length to be added to the shield excavator 11 is also performed by the hoisting device 17 from the toro bogie 17.

The rail 3 and the equipment-equipped trolley 14 are integrally advanced while being towed through the connecting members 16 and 18 connected to the shield excavator 11 in accordance with the excavation of the shield excavator 11,
The front end of the rail 3 is a roller frame 2c of the newly provided hanging tool 2.
The lower surface of both sides of the upper flange 3a is supported on the rollers 2d, 2d, and the equipment mounting cart 14 also advances on the newly laid rail 15.

As described above, each time the shield excavator 11 excavates a tunnel of a predetermined length, a segment lining for one ring is performed, and each time a segment lining of a predetermined length is formed, the hanging tool 2 is placed on the transport path. Installation and laying of a certain length of rail, and connect the rail 3 and the equipment-equipped trolley 14 with a shield excavator.
The segment 21 is moved forward from the trolley 17 to the erector 13 side by the hoisting device 5 while being advanced integrally with the 11.

At this time, in the curved tunnel portion, the plurality of hanging members 2 are sequentially attached at regular intervals to the center of the upper peripheral wall surface of the segment lining 1 along the curve. The rail 3 is divided into a plurality of short rails 31, 31,... At intervals of a length shorter than the mounting interval, and the adjacent short rails 31, 31 are connected to each other by the joint 4 as described above in the left-right direction ( The rail 3 is bent along the curved tunnel portion via the joint 4 between the adjacent hanging members 2, 2 as shown in FIG.

Thus, even if the rail 3 is bent, the joint 4 has circular holes 4c and 4d on the upper and lower surfaces of the upper and lower flanges 3a and 3b at the opposite ends of the short rails 31 and 31 as described above. Circular plates 4e, 4f loosely fitted to the joint plate pieces 4a, 4b and the circular holes 4c, 4d.
And the left and right rollers 2d, 2d in the roller frame 2c of the hanger 2 without being disturbed by the joint 4.
It can smoothly move back and forth while receiving the lower surface of the upper flange 3a. Similarly, the winding device 5 also includes a roller 5c rotatably supported on the front and rear opposing surfaces of the roller frame 5b at the lower portion of the rail 3. The flange 3b is supported on the upper surface of both sides of the flange 3b so as to freely roll, and can move smoothly in the front-rear direction.

Next, after the segment lining 1 is constructed over the entire length of the tunnel 12 excavated by the shield excavator 11, a method of laying water and sewer pipes or various pipes in the tunnel 12 using the above-mentioned telher is used. State. First,
The rail 15a of a certain length at the end of the tunnel is removed, suspended by the hoisting device 5 standing by at the front end of the rail 3 of Telher, and the hoisting device 5 is retracted to the rear end of the rail 3. As shown in FIG. 6, the vehicle is transferred onto a carriage 22 waiting on the rail 15, and is carried out to the rear end of the tunnel by the carriage 22. In this case, in order to stably lift the long rail 15a, two hoisting devices 5 are arranged at appropriate intervals before and after the rail 3, and the front and rear hoisting devices 5, 5 have fixed-length rails. 15a is suspended in the erected state.

After the rail 15a is carried out, a tube 23 having a fixed length is placed on the carriage 22 at the beginning of the tunnel, and this carriage is
22 is run on the laying rail 15 and conveyed to a position below the rear end of the rail 3, and the tube 23 is suspended by the hoisting devices 5 and 5, and further conveyed forward along the rail 3 and removed. And is connected to the rear end of the pipe 23 already laid down on the rail trace (see FIGS. 7 and 8).

Thereafter, the both hoisting devices 5 are retracted along the rail 3 and the bogie 22 is retracted from below the rail 3 to the rear of the rear end of the rail 3 as shown in FIG. The rails 15a (the foremost rail portion) are removed and suspended by the hoisting devices 5 and 5, and the rails 3 are attached to the lower surface of the upper peripheral wall of the segment lining 1 at regular intervals. The suspended rail 15a is moved over the carriage 22 by retreating along 2.
15a is transferred onto the trolley 22. The rail 15a is removed by first retracting the rail 3 to a position where the rear half of the rail 15 is above the carriage 22, and in this state, the hoisting device 5 is reciprocated along the rail 3. The rail 15a lifted by the above can be mounted on the carriage 22.

The rail 15a is carried out to the beginning of the tunnel by the bogie 22, and the pipe body 23 is placed on the bogie 22 as described above, suspended on the removed rail trace, and laid again. Connect to the rear end of body 23. By repeating this operation, a pipe 23 is laid over the entire length of the tunnel at the removal site of the rail 15 laid in the tunnel.

In this operation, the rail 3 is retracted by a certain length every time the fixed-length pipe 23 is laid, but at the rear end, the hanger 2 is relocated during the construction of the segment lining 1. If it is left at regular intervals over the entire length of the tunnel 12, the rail 3 of a fixed length can be retracted while being mounted on the rear hanger 2, and it has been relocated during the construction of the segment lining 1. In this case, the uppermost wall of the segment lining 1 which is separated from the rearmost hanging device 2 that suspends the rail 3 by removing the frontmost hanging member 2 from the segment lining 1 and leaving a certain distance behind. After attaching to the central part, the rail 3 is retracted.

As in the case of the above segment lining, the rail 3 is moved at the center of the upper peripheral wall of the segment lining 1 in the longitudinal direction of the tunnel along the transport path at regular intervals along the transport path. The roller 2d is rotated while the lower surface of the upper flange 3a is supported by the left and right rollers 2d, 2d in a state of being inserted through the second roller frame 2c. At this time, in the curved tunnel portion, as described above, the portion between the short rail portions 31 constituting the rail 3 is bent in the tunnel bending direction via the joint 4, so that the transfer start end and the transfer end of the pipe 24 are always maintained. The hoist 2, 2,... While the hoisting device 5 is positioned above
・ Move smoothly along.

In the above embodiment, the segment lining 1 is constructed in the tunnel excavated by the shield excavator 11, and the terhar is provided on the lower surface of the upper peripheral wall of the segment lining 1 to make the segment 21 Although the transfer with the pipe 24 has been performed, it is needless to say that the transfer can be used also for transferring other materials and devices in the tunnel .

Further, in the above embodiment, one rail 3 is configured to be able to run along the hanger 2 along the transport path. However, as shown in FIG. 11, the structure (segment lining) is used.
The hanging tools 2 are arranged in two rows at regular intervals in the length direction of the transport path on both sides of the article transport path on the lower surface of the vehicle. It may be a suspended structure.

[0036]

As described above, according to the Telher of the present invention, the shield excavator is assembled according to the tunnel excavation.
Hanging members are attached to the lower surface of the segment lining at regular intervals in the length direction, and an upper flange of a rail made of an I-beam having a fixed length is movably suspended between the hanging members and a lower portion of the rail is provided. In a terhar in which a hoisting device is hung freely on a flange, the above-mentioned rail is divided into lengths shorter than the above-mentioned hanger spacing, and the space between the opposing ends of these split rails can be freely bent in the left-right direction. Since the rails can be bent in the left-right direction for each length shorter than the mounting interval of the hanging tools, the mounting tools are attached at regular intervals along the curved transport path. In this case, the rail can be moved using the hanger as a guide while being bent in accordance with the degree of bending of the conveyance path between the adjacent hangers. Start and end of transport, ie The position of the front and rear ends of the rail can be changed to a desired position, and the article can be smoothly transported from the transport start end to the transport end of the rail by a hoisting device that is hung freely on the lower flange of the rail. You can do it.

Further, hanging members are attached to the lower surface of the upper surface of the segment lining assembled in accordance with the tunnel excavation of the shield excavator at regular intervals in the length direction of the tunnel, and are shorter than the interval between the adjacent front and rear hanging members. A plurality of split rail sections made of an I beam having a length are sequentially connected to each other via a joint that can be bent in the left-right direction to form a rail of a fixed length, and an upper flange of the rail runs between a plurality of hanging members. Since the Telhar is constructed by freely suspending and hoisting the hoisting device on the lower flange of the rail so that it can run freely, a frame for fixing the rail of the Telher is installed on the equipment-equipped truck following the shield excavator as before. It is not necessary, and therefore, of course, the working space in the tunnel is widened, and the rail is composed of a plurality of split rails that are connected to each other via joints so as to be able to bend in the left-right direction.
In the case of a curved tunnel portion, even when the transport path by a plurality of hanging tools suspended at regular intervals on the lower surface of the upper surface of the segment lining along the curved tunnel portion is bent, Accordingly, the rail can be bent at the joint portion and moved while being reliably supported by the hanging tool.

Further, by attaching a new hanging tool to the lower surface of the upper peripheral wall of the segment lining assembled according to the excavation of the shield excavator, the rail can be advanced to the hanging tool according to the excavation length of the shield excavator. Therefore, every time a fixed length segment lining is formed, the transfer start end and the transfer end of the segments and the like at the front and rear ends of the fixed length rail are moved to an accurate position to enable efficient transfer. is there.

[Brief description of the drawings]

FIG. 1 is a simplified longitudinal sectional side view of a state in which a terhar is arranged on a segment lining during tunnel construction,

FIG. 2 is an enlarged vertical sectional front view thereof;

FIG. 3 is a plan view of a joint part of a rail of Telhar,

FIG. 4 is a longitudinal side view thereof,

FIG. 5 is a simplified cross-sectional view showing a bent state of a rail of Telhar in a curved tunnel portion,

FIG. 6 is a simplified longitudinal side view of a state where a rail in a tunnel is removed using a terhar,

FIG. 7 is a simplified vertical cross-sectional side view of a state in which a pipe is conveyed to a rail removal trace,

FIG. 8 is a simplified vertical sectional side view showing a state where pipes are laid;

FIG. 9 is a simplified longitudinal side view of a state in which a rail is removed,

FIG. 10 is a simplified vertical sectional side view showing a state where a rail is mounted on a bogie;

FIG. 11 is a simplified longitudinal front view of a state where parallel rails are provided in a tunnel,

FIG. 12 is a simplified vertical side view showing an example of use of a conventional Telhar.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Segment lining 2 Hanging equipment 3 Rail 3a Upper flange 3b Lower flange 4 Joint 5 Hoisting device 21 Segment 31 Short rail

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-108098 (JP, U) JP-A-2-47299 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) E21F 13/02 E21D 11/40

Claims (3)

(57) [Claims] 1. According to the tunnel excavation of a shield excavator
Attachments are attached to the lower surface of the segment lining to be assembled at regular intervals in the length direction, and an upper flange of a rail made of an I-beam having a fixed length is suspended between these suspenders so that the rail can run freely, and In a terhar in which a hoisting device is hung freely on a lower flange, the above-mentioned rail is divided into lengths shorter than the above-mentioned hanger spacing, and the ends of these divided rails facing each other are bent in the left-right direction. Telher characterized by being freely connected. To 2. A top peripheral lower surface of the segment lining in a predetermined length portion from the rear end of the shield excavator, claim, characterized in that it attach the hanger at regular intervals in the tunnel longitudinal direction 1. Telher according to 1. 3. A process according to claim 1 or claim, characterized in that the structure lower surface of both sides to the two rails by attaching a suspender at regular intervals in the longitudinal direction each are suspended in parallel state Telher according to 2.