JPH10131695A - Segment transfer device in shield construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability by providing an arm free to insert between a segment carriage and a segment on the lowest level on a segment transfer carriage and making it free to relatively move in the vertical direction against a segment group on the segment carriage. SOLUTION: In the case of supplying a segment 3 to an erector 12, a group of the segment 3 on a segment carriage 60 stopped in a segment transfer and place carriage 21 is made to face against a lift device 30. Thereafter, an engagement arm 44 of the device 30 is made to advance and inserted between a segment placing part on the carriage 60 and the segment 3 on the lowest level. Thereafter, the arm 44 is lifted up by driving a lifting drive device, the segment 3 for one carriage is lifted from the carriage 60 and supported, and the vacant carriage 60 is returned to the side of a vertical shaft. Thereafter, the segment on the top level out of the group of the segment 3 supported on the side of the carriage 21 is lifted up and transferred onto a conveyor frame 16 by transfer bodies 52, 53. Consequently, it is possible to improve efficiency of supply of the segment and driving of the carriage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a segment (tunnel lining material) transported from the ground side to the tunnel pit side from the ground side in shield construction (shield construction method).
The present invention relates to a segment transfer device in a shield construction employed for assembling after being transported by a segment transport cart in the tunnel mine.

[0002]

2. Description of the Related Art Conventionally, as this kind of structure, there has been provided a lining material conveying device as disclosed in Japanese Patent Application Laid-Open No. 4-333800, for example. In this conventional configuration, an erector is disposed behind a shield machine, and a succeeding bogie (self-propelled bogie) that moves integrally with the shield machine side is disposed behind the erector, and a lower space portion of the subsequent bogie is provided. In addition, a lining material transport conveyor that is movable with the succeeding bogie is provided, a front crane is provided at the front of the subsequent bogie, and a rear crane is provided at the rear.

[0003] According to this conventional configuration, a tow truck is driven by a tow truck, thereby transporting a plurality of lining materials placed on the trolley truck through a tunnel. The backing crane transfers the lining material one by one onto the starting end of the conveyor, and the lining material conveyed by the conveyor to the rear end of the conveyor is transferred one by one to the erector by the front crane.

[0004]

According to the above-mentioned conventional construction, when the lining material on the toro truck is lifted by the rear crane, the hanging metal fittings are attached to the segments one by one.
It is necessary to perform slinging work, which is a troublesome work in a place with poor workability. In addition, the toro truck had to wait until loading and unloading was completed, which was inefficient, and required space for loading and unloading.

[0005] Therefore, the invention according to claim 1 of the present invention is a segment transfer device in a shield construction in which segments conveyed by a segment carrier can be quickly and simultaneously unloaded and a space for unloading and unloading is unnecessary. The purpose is to provide.

[0006]

In order to achieve the above-mentioned object, according to the present invention, a segment transfer device in a shield construction according to claim 1 comprises a plurality of sheets transported in a tunnel shaft by a segment transport vehicle. Segment
A segment transfer device for unloading from the segment transfer truck, wherein a segment transfer truck that can travel in the tunnel axis direction is disposed in the tunnel pit, and the segment transfer truck includes a segment transfer truck and a lowermost segment. And a locking arm that can be inserted between the segments and the segment group on the segment carrier and the locking arm are configured to be relatively movable in the vertical direction.

Therefore, according to the first aspect of the present invention, a plurality of segments carried into the tunnel pit are placed on the segment transport trolley, and the segment transport trolley is moved to transport the segment group in the tunnel pit. I can do it. Then, the segment transport vehicle is stopped in the segment transfer vehicle. At this time, the locking arm is retracted, so that the segment carrier can travel without any trouble.

In this state, the locking arm is advanced and inserted between the segment carrier and the lower surface of the lowermost segment, and the relative movement between the segment group and the locking arm is performed. The locking arm can be locked to the lower surface of the lowermost segment, so that one segment can be lifted and supported at once from the segment carrier. The segment transport trolley emptied by this operation is caused to return (forward). Then, the segment group supported on the segment transfer vehicle side can be transferred one by one from the highest segment to the next step.

According to a second aspect of the present invention, there is provided a segment transfer device in a shield work, wherein a plurality of segment transfer vehicles having locking arms are arranged in the tunnel axial direction. It is characterized by having been done.

Therefore, according to the second aspect of the present invention, the stop of the segment carrier is performed for the front segment transfer truck, and then sequentially for the rear segment transfer truck. Then, one segment group transported by the segment transport vehicle group is lifted and supported at once by each segment transfer vehicle portion, and temporary storage is performed. The return movement of the segment transport vehicle is performed sequentially from the rear segment transport vehicle side.

According to a third aspect of the present invention, there is provided a segment transfer device in a shield construction according to the first or second aspect, wherein the locking arm is provided between the segment carrier and the lowermost segment. It is characterized by being freely insertable and vertically movable.

According to the third aspect of the present invention, when the segment carrier is stopped in the segment transfer vehicle, the locking arm is moved backward and lowered. Then, by moving the locking arm forward and inserting it between the segment carrier trolley and the lower surface of the lowermost segment, raising the locking arm and locking it to the lower surface of the lowermost segment, One segment can be lifted and supported at once from the segment carrier.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the tunnel 1 is
The steel segment is assembled on the inner surface of the tunnel excavated by the shield machine 10, that is, formed by the construction segment 2. Behind the shield machine 10, a segment assembling device (electa) 12 integrated with the shield machine 10 is provided, and the segment assembling device 12 has a segment gripper 13 and the like.

Behind the segment assembling apparatus 12, there is provided a segment conveyor 15 which is moved integrally with the segment assembling apparatus 12. The segment conveyor 15 includes a conveyor frame 16, a table 18 that can move up and down with respect to the conveyor frame 16 via a lift mechanism (not shown), and can move back and forth by a cylinder device 17. .

Behind the segment transport conveyor 15, there is provided a segment transfer device 20 for lowering the plurality of segments 3 transported in the tunnel 1 by a segment transport vehicle (described later) from the segment transport vehicle. Is established. The segment transfer device 20 has a segment transfer vehicle 21 that can travel in the tunnel axis direction. Here, two (a plurality of) segment transfer vehicles 21 are disposed in the tunnel axis direction.

As shown in FIGS. 2 to 5, each of the segment transfer carts 21 has a gate-shaped frame main body 22 as viewed from the front, and wheels 23 provided at the lower ends of the left and right legs and at a plurality of positions in the front-rear direction.
And a lift device 30 for simultaneously lifting the third group of segments from the segment carrier.

The wheel 23 is provided on the inner surface 2a of the construction segment 2.
And is mounted on the frame body 22 side via the wheel bracket 24, and the circular inner surface 2
The direction (inclination) is set so as to make proper contact with a. In order to prevent the segment transfer cart 21 from swinging (shifting) in the circumferential direction, a guide roller 6 is provided on the inner surface 2 a of the construction segment 2 via a mounting bracket 5, and the guide roller 6 is moved right and left. In the position where the distribution is made, a large number are arranged in the tunnel axis direction (front-back direction). And the segment transfer trolley
The guide roller 6
A guided member 25 that is guided in contact with the group is provided.

The lift device 30 is constructed by distributing the same components left and right and symmetrically arranging them. That is, a lifting device mounting member (steel plate) 31 is provided on the frame main body 22 of the segment transfer vehicle 21, and a vertical lifting guide is provided on the lifting device mounting member 31 side via a pair of upper and lower brackets 32. Rods 33 are arranged in a pair in front and rear. An elevating frame 35 that is guided by these elevating guide rods 33 via a guided tube 34 is provided.

An elevating device 36 for raising and lowering the elevating frame 35 is provided. The elevating device 36 is, for example, a pair of front and rear screw jacks which are mounted upward on a lift device mounting member 31 via a bracket 37 or the like. 38, a drive unit (drive motor, etc.) 40 attached to the lift device attachment member 31 side via a bracket 39, etc., and a direct gear 41 that interlocks the drive unit 40 with the screw rods 38A of both screw jacks 38. The upper end of the screw rod 38A is linked to the lifting frame 35.

Left and right arm guide rods 43 are disposed at both front and rear ends of the elevating frame 35. L-shaped locking arms 44 are provided on these arm guide rods 43.
It is slidably provided in the left-right direction with the horizontal rod portion serving as the locking portion 44A facing inward. A sliding device 45 for sliding the locking arm 44 in the left-right direction is provided. The sliding device 45 is, for example, of a cylinder type, and has a cylinder body 46 connected to the lifting frame 35 side and a piston rod 47 connected to the locking arm 44 side.

An example of the lift device 30 is constituted by the above 31 to 47 and the like, wherein the locking portion 44A of the locking arm 44 can be inserted between the lowermost segment and the segment carrier and can be raised and lowered. It is composed of

1 to 4, the front and rear segment transfer vehicles 20 are integrated via a rail 51 of a lifting and conveying means 50. The rail 51 has a pair of left and right sides, and both ends in the front-rear direction are connected to the connecting member 26 from the frame body 22 side. The lifting / transporting means 50 is provided with two (single or plural) lifting / transporting bodies 52, 53.
These lifting transfer bodies 52, 53 are provided on wheels provided on the main body 54.
55 is a self-propelled body type supported and guided by the rail 51,
Each of the main bodies 54 is provided with a segment holding device 57 via a plurality of suspension devices 56 in the form of a chain block.

In the tunnel 1, there is provided a segment carrier 60 for carrying a plurality of segments 3. The segment carrier trolley 60 includes a trolley body 62 having a segment mounting portion 61 formed on an upper surface thereof, and a trolley body 62.
Idling wheels 63 provided at four corners on the lower surface side of 62, and drive wheels 64 provided at front and rear central portions on both sides of the bogie main body 62.
And a traveling drive device 65 and the like interlocked with the drive wheels 64, and are supported and guided on the inner surface 2a of the construction segment 2 via the idle wheels 63 and the drive wheels 64.
It is configured to run freely in the tunnel axis direction.

The operation of the above embodiment will be described below. For example, a segment (tunnel lining material) 3 carried into the tunnel 1 from the ground side through the shaft.
Are placed on the segment placement section 61 of the segment carrier 60 by a plurality (predetermined number). And the traveling drive device
The segment 3 group can be transported in the tunnel 1 by moving the segment transport vehicle 60 by the operation of 65. The traveling of the segment carrier 60 can be performed not only by the self-propelled type described above but also by a pulling type by another device.

The segment transporting trolley 60 that has thus transported the third group of segments is stopped in the segment transfer vehicle 21, and the third group of segments is opposed to the lift device 30. At this time, in the left and right lift devices 30, as shown by the imaginary line in FIG. 4, the locking arm 44 is moved backward by the backward movement of the sliding device 45, and further, the locking arm is moved by the downward movement of the lifting / lowering device 36. 44 is lowered together with the lifting frame 35. Therefore, the traveling of the segment carrier 60 can be performed without any trouble, and the locking arm 44 is connected to the segment mounting portion 61 of the segment carrier 60 and the lowermost segment 3.
May be opposed to the lower surface.

In this state, first, the locking arm 44 is moved forward by the forward movement of the sliding device 45, and as shown in FIG. 2, the lifting device portion, the solid line in FIG. Stop arm
44 is inserted between the segment mounting portion 61 of the segment carrier 60 and the lower surface of the lowest segment 3. Next, the lifting arm 36 raises the locking arm 44 together with the lifting frame 35, thereby locking the locking portion 44A to the lower surface of the lowermost segment 3, and the front lifter in FIG. As shown in the apparatus section, one segment 3 is lifted and supported at a time from the segment carrier trolley 60. As a result, the empty segment transport vehicle 60 is returned (forwarded) toward the shaft.

The segment carrier 60 is first stopped on the preceding segment carrier 21 and then on the rear segment carrier 21. The return movement of the segment transport vehicle 60 is performed from the rear segment transport vehicle 60 side. Then, by repeating the same operation as described above, the three segments of one unit conveyed by the segment conveyance trolley 60 are lifted and supported by the lift device 30 at once, and temporary storage is performed.

In this manner, of the group of segments 3 supported on the segment transfer cart 21 side via the lift device 30, the uppermost one segment 3 is lifted and transported.
50 is lifted by one of the lifting transfer bodies 52 and 53 via the lifting device 56 and the segment gripping device 57.
Next, the lifting transfer bodies 52, 53 are supported by the support guide of the rail 51.
, The segment 3 is transported above the rear side of the segment conveyor 15. Then, the segment 3 can be transferred onto the conveyor frame 16 by the suspension movement of the suspension device 56.

Then, the segments 3 are sequentially fed by the segment conveyor 15. In other words, the segment transport conveyor 15 can lift the table 3 by the lift mechanism to lift the group of segments 3 supported on the conveyor frame 16 side by the table 18, and move the table 18 to the front by the cylinder device 17. Side, the group of segments 3 can be transported by one pitch, and then by lowering the table 18, the group of segments 3 can be lowered to the side of the conveyor frame 16, and then the table 18 is moved backward. , And the third group of segments can be sequentially advanced by the segment conveyor 15. Thus, the segments 3 can be sequentially supplied (supplemented) and stored on the segment conveyor 15.

In the above description, a state was described in which the segments 3 transported by the segment transport trolley 60 are supplied to the segment transport conveyor 15, but in practice, the segments 3 are used as the shield excavator 10 advances. The supply of the third group of segments is performed accordingly.

That is, as the shield machine 10 advances, the segment assembling device 12 and the segment conveyor 15 are integrally moved. At this time, the segment conveyor 15 stores a plurality (predetermined number) of segments 3 in a straight line as described above. Therefore, the segment assembling device 12 can be operated and moved, and the segment 3 at the end of the segment conveyor 15 can be gripped by the segment gripping means 13. Then, after the segment assembling apparatus 12 holding the segment 3 is stopped facing the excavated tunnel, the intended assembling operation is performed,
A new construction segment 2 can be formed.

The segment conveyor 15 having an empty end can sequentially transport the group of segments 3 by one pitch as described above. Therefore, as described above, the segment gripping means 13 of the segment assembling device 12 grips another segment * located at the end of the segment conveyor 15 and the segment 3 assembles the desired assembly operation. The new construction segment 2
And this operation is performed iteratively.

In the embodiment described above, the locking arm 44 is incorporated in the lift device 30, inserted between the segment carrier 60 and the lowermost segment 3, and then raised, so that the The third group of segments and the locking arm 44 are configured to be relatively movable in the up and down direction. This is because the segment mounting portion (segment receiving base) 61 of the segment carrier 60 is configured to be movable up and down. The stop arm 44 may be configured so as to be freely inserted between the segment carrier 60 and the lowest segment 3.

In the above-described embodiment, the two segment transfer vehicles 21 are arranged in the tunnel axial direction.
This may be a form in which two or more (a plurality) or one is provided.

In the above-described embodiment, the segment transfer cart 20 and the segment carrier cart 60 are shown to be supported and guided on the inner surface 2a of the construction segment 2 and run freely. A configuration in which the vehicle travels while being supported and guided by a rail laid on the inner surface 2a may be used.

In the above embodiment, the lifting and conveying means
A type using lifting transfer bodies 52 and 53 supported and guided by a pair of right and left rails 51 is shown as 50, but this is a type using a lifting transfer body supported and guided by a monorail type rail. You may. In addition, one lifting transfer body may be used. In addition, a crane or the like can be used instead of the lifting and conveying means 50.

[0037]

According to the first aspect of the present invention, the locking arm is advanced to be inserted between the segment carrier and the lower surface of the lowermost segment. By performing relative movement,
One segment can be lifted and supported at once from the segment carrier, and the empty segment carrier can return (forward). In this way, the segments transported by the segment transport trolley can be quickly and simultaneously lowered without performing a slinging operation and the like, and the segment supply operation can be performed efficiently, and the segment transport trolley is in the standby state. Rotation (operation) can be performed efficiently with less time. In addition, by supporting the segment group on the segment transfer cart side,
Space for loading and unloading can be eliminated,
The storage truck of the segment can also be used, and continuous supply of the segment can be performed, and automatic operation can be suitably performed.

According to the second aspect of the present invention,
By properly using a plurality of segment transfer vehicles, the segment supply operation can be performed more efficiently. According to the third aspect of the present invention, the locking arm is advanced to be inserted between the segment carrier and the lower surface of the lowermost segment, and then the locking arm is raised to lower the lowermost segment. Can be lifted and supported by one segment from above the segment carrier, and the structure and control can be simplified by providing the operating portion on the segment carrier.

[Brief description of the drawings]

FIG. 1 shows an example of an embodiment of the present invention and is a partially cutaway perspective view in shield construction.

FIG. 2 is a partially cutaway perspective view of a segment transfer device in the shield construction.

FIG. 3 is a side view of a segment transfer device in the shield work.

FIG. 4 is a partially cutaway front view of a segment transfer device in the shield construction.

FIG. 5 is a partially cutaway plan view of a segment transfer device in the shield construction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tunnel 2 Construction segment 2a Inner surface 3 Segment 10 Shield excavator 12 Segment assembling device 15 Segment conveyor 20 Segment transfer device 21 Segment transfer trolley 22 Frame body 23 Wheel 30 Lift device 35 Elevating frame 36 Elevating device 44 Lock Arm 44A Locking part 45 Sliding device 50 Lifting and transporting means 60 Segment transport trolley 61 Segment mounting part

Claims (3)

[Claims] 1. A segment transfer device for lowering a plurality of segments transported in a tunnel pit by a segment transport trolley from the segment transport trolley, wherein the segment transfer trolley is capable of traveling in the tunnel axial direction in the tunnel pit. The segment transfer cart is provided with a locking arm that can be inserted between the segment carrier and the lowermost segment. The segments on the segment carrier and the locking arm are vertically A segment transfer device for shield work, which is configured to be relatively movable in directions. 2. The segment transfer device according to claim 1, wherein a plurality of segment transfer vehicles having locking arms are arranged in a tunnel axial direction. 3. The segment transfer device according to claim 1, wherein the locking arm is freely insertable and vertically movable between the segment carrier and the lowermost segment.