JPH0818648B2 - Temporary storage / import facility for tunnel segment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a temporary storage of a segment for tunnel lining transferred to a loading section by a truck or the like, and loading into a tunnel excavated by a shield method from a starting shaft for successive start. Related to temporary storage / import facilities for tunnel segments.

2. Description of the Related Art Conventionally, there is an automatic warehouse for temporarily storing goods. The stacker crane installed in the automatic warehouse has a post whose upper end is guided by a ceiling rail on a traveling platform that is freely movable along the floor rail, and is vertically movable along this post. It is configured by providing a fork that can move in and out on the shelf side on the lifting platform.

Further, when a segment for temporary lining is carried in a facility for carrying in and out articles into a hole of a large depth, for example, in a tunnel excavated by the shield construction method, conventionally, as shown in FIG. After the segment 72 that has been loaded into the vehicle is loaded on a fixed pedestal 74 such as a skid by a cargo handling machine such as a forklift 73, the crane is placed at the entrance of the starting pit 75 by the cargo handling machine as needed.
The segment 72 transferred to the 76 and suspended in the crane 76 and lowered in the starting pit 75 is placed on the segment carriage 78 which can travel in the tunnel 77 at the lower limit position. 79 is a shield machine, and 80 is a segment assembling device.

Problems to be Solved by the Invention In the former warehouse facility, a structure that crosses the traveling route of the stacker crane exists on the floor surface, and the floor rail cannot be laid when the equipment is on the floor surface. It was necessary to detour the floor rails and design the layout of equipment to correspond to the traveling route of the stacker crane, and it was difficult to effectively use the floor surface in the warehouse.

In the case of the latter loading and unloading facility, a large number of mud sending and discharging facilities, hydraulic units, and control equipment are arranged on the ground near the start pit 75, and in addition to that, for the forklift 73 for transporting the segment 72. A travel route was needed, and an extremely large amount of land was needed.

It is an object of the present invention to solve the above problems and provide a temporary storage / carrying-in facility of a tunnel segment in which a floor surface in a warehouse and a ground surface on which equipment is installed are effectively used and can be carried in efficiently. And

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention temporarily stores the segments transported to the loading unit, and also temporarily stores and loads the tunnel segments that are sequentially loaded into the starting shaft of the tunnel. In the facility, the traveling rail is arranged at a predetermined height along the transportation path passing through the loading section of the segment and the starting shaft, and a plurality of storage sections capable of accommodating the segments are provided on the lower side of the traveling rail. Set up shelves with
A traveling platform for a stacker crane that is movable along a traveling rail is provided, and an elevating body that includes a guide post that is vertically guided is provided on the traveling platform, and the elevating stroke of the guide post is at least the lower end of the elevating body. The part is set so as to go up and down over the upper end of the shelf and the entrance of the vertical shaft, and at the lower end of this elevating body, a hanging body that is detachable from the elevating body and descendable is disposed, and a wire rope is connected to the hanging body. The lifting body with the suspended body attached is driven up and down, and a winch that can drive the suspended body up and down in the starting shaft is installed on the traveling frame, and the suspension body is pulled out to the shelf side to hold the segment. A possible segment holding device is provided, and a cell guide for guiding the lifting and lowering of the suspended body is provided in the vertical shaft for starting.

Further, the segment holding device having the above-mentioned configuration, the crane-side rail disposed on the suspension body and the shelf-side rail disposed on the upper part of the storage space of the shelf are movable to and from the suspension body on the shelf side, and A holding carriage that can be separated from the hanging body, and is rotatable and expandable between the holding position in the hanging direction and the standby position in the horizontal direction on this holding carriage, and the segment can be supported from below at the tip. And a plurality of holding arms having different holding claws.

Action In the above configuration, it is possible to carry out the warehousing work between the carry-in section and the shelf for temporary storage and the carry-in work between the shelf and the starting shaft. For the warehousing work, the stacker crane traveling platform is moved along the traveling rails, stopped above the carry-in section, and the guide post is lowered by the winch to lower the hanging body attached to the lifting body above the segment and hold the segment. The device holds the segment. Then, the segment is carried into the storage portion of the shelf by raising and lowering the guide post by the winch and traveling the traveling base. In the carrying-in operation, the segment is taken out from the storage portion of the shelf, the traveling platform is stopped above the starting shaft, and the guide post is lowered by the winch to lower the lifting body to the shaft entrance. Then, the hanging body is removed from the lifting body, and the wire rope is unwound by the winch to lower the hanging body along the cell guide and carry it to the tunnel entrance at the bottom of the vertical shaft.

According to the above configuration, between the low-lift carry-in section and the storage section of the shelf, or between the storage section and the vertical shaft entrance, the guide posts are moved up and down while the suspension body is mounted on the elevating body to convey the segment. In addition, the work space on the ground can be effectively used, and high-speed transportation is possible with less segment shake and error, and efficient work can be performed. Furthermore, in the starting shaft of the high lift, since the hanging body is detached from the elevating body and only the hanging body is lowered by the winch to carry, the high lift can be carried by a simple facility. Further, since the suspended body is guided by the cell guide in the starting shaft, safe and stable vertical transportation can be performed.

In addition, since the segment holding device is provided with the holding cart and the holding arm, loading and unloading of the segment in the storage part of the shelf can hold the segment from above with the crane side rail transferred to the shelf side rail. Therefore, a cantilever load of the segment is not applied to the lifting body, and a heavy segment can be stably held and loaded / unloaded.

Examples Hereinafter, temporary storage of tunnel segments according to the present invention
An example of the carry-in facility will be described with reference to FIGS. 1 to 5.

In FIG. 1, reference numeral 1 denotes a segment transfer path passing above an entrance 3a of a start pit (starting vertical shaft) 3 of a tunnel 2 to be excavated by a shield construction method. A pair of left and right traveling rails 4 are provided along the segment transfer path 1. They are arranged at a predetermined height above the ground 7 and at regular intervals via the columns 5 and the rail support members 6, respectively. A self-propelled traveling platform 9 of a stacker crane 8 is provided on the traveling rail 4 so as to be freely movable in the directions of arrows A and B via traveling wheels. The traveling platform 9 is provided with a traveling drive device 10 for driving traveling wheels, and a winch 13 for vertically moving an elevating body 11 disposed below the traveling platform 9 via a wire rope 12.

As shown in FIGS. 2 and 5, the elevating body 11 includes an elevating frame 15 in which four guide posts 14 guided up and down by the traveling base 9 are erected at four corners, and the elevating frame 15 And a recess 17 formed in a lateral direction orthogonal to the segment transfer path 1 on the lower surface of the suspension 17
Tongs bogie (holding bogie) that can move in and out horizontally in 18
And the wire rope 12 of the winch 13 is
As shown in FIG. 1, the hanging body 17 at the lower end of the elevating body 11 is connected via the guide post 14 to at least the uppermost storage section 42 of the shelf 41 and the starting pit 3 of the shelf 41, which will be described later. It is configured to drive up and down between the entrances and drive the suspension 17 detached from the lifting frame 15 up and down between the lifts of the starting pit 3.

The elevating frame 15 has a rectangular frame shape in plan view, and a taper surface 15a is formed on the lower surface of the elevating frame 15 so as to become higher toward the outer side. Are respectively connected. A rectangular fitting groove 22 into which the elevating frame 15 can be fitted is formed on the upper surface of the hanging body 17.
A fixing device 23 having a stopper block 23a that protrudes along the upper surface of the elevating frame 15 fitted into the fitting groove 22 and is fitted into the gate-shaped receiving frame 21 of the hanging body 17 is disposed inside 22. Also,
Crane-side rails 24 having U-shaped cross sections are attached to both side surfaces of the recess 18 of the hanging body 17 so that the opening surfaces thereof face each other.

A convex portion 25 that loosely fits into the concave portion 18 is formed on the upper surface of the tongs truck 19, and flanged retractable wheels 26A and 26B that are guided by the crane-side rail 24 are disposed on both side surfaces of the convex portion 25. And
On one side of the wheel 26A, the moving-in / out drive motor 27 disposed in the convex portion 25 is interlocked and coupled via a speed reducer or a gear, and is indicated by arrows C and D.
Move in and out in the direction. At four corners of the tongs truck 19, a holding arm 29 is provided between a holding position (a) vertical to the arrow E and F directions and a horizontal standby position (b) via a rotary shaft 28 along the exit and retreat direction of the tongs truck 19. The rotary shaft 28 is mounted so as to be reciprocally rotatable between them, and the rotary shaft 28 is driven by a rotary device (not shown) having an electric motor arranged in the tongs carriage 19.

The holding arm 29, as shown in FIG.
A base end arm 29a fixed to the base end arm 29a, and a tip end arm 29b slidably fitted into the base end arm 29a, and the differential rod 30a of the electric telescopic cylinder 30 mounted in the base end arm 29a. The holding arm 29 is extended and contracted in the directions of arrows G and H by being connected to the tip arm 29b. A holding claw 32 that can support the segment 31 from below is provided at the tip of the holding arm 29. That is, the base end portion of the holding claw 32 is rotatably attached to the support bracket 33 at the tip portion of the tip arm 29b through the support pin 34, and the main body 35a is electrically connected to the tip arm 29b by an electric open / close cylinder 35 pin-connected. The operating rod 35b of the holding claw 3
2 is pin-connected to the opening / closing bracket 36, and the arrow I, between the holding position (c) in the horizontal posture and the release position (d) in the vertical posture.
It is configured to be rotatable in the J direction.

A holding arm having these tongs cart 19 and holding claw 32
The segment holding device is constituted by 29.

The drive source of each of the drive devices 23, 27, 30, 35 is the third
As shown in the figure, the primary power supply cord 37, which is fed or wound in correspondence with the elevation of the elevating body 11 from the traveling base 9, is the hanging body.
A secondary power supply cord 39, which is connected to a cord reel 38 of 17, and can be unwound and wound by the cord reel 38, is connected to the tongs truck 19 via a guide reel 40 and supplied.

Reference numeral 41 denotes shelves arranged below the traveling rails 4 on both sides of the segment transport path 1 and formed in a frame-like shape. Each storage section 42 faces the segment pedestal 43 and the crane side rail 24 of the suspension 17. A pair of left and right shelf-side rails 44 that can be continuously connected are provided.

A segment carry-in section 45 is formed below one end of the segment transport path 1, and as shown in FIG. 1, the stacker crane 8 grips the segment 31 directly from the loading platform of the segment transport truck 46 that has retracted and entered the ground 7. Then shelves 41
Can be carried to the side. 47 is an inspection workbench.

Incidentally, as shown in FIG. 6, a receiving workbench 48 extending laterally from the segment carrying-in section 45 and comprising a chain conveyor is provided, and the segment carrying-in truck 46 from the segment carrying-in truck 46 in the parallel position
You can also accept 31.

As shown in FIGS. 1 and 5, guide frames 49 are arranged in the vertical direction in the starting shaft 3 at the other end of the segment transport path 1, and the four corners of the hanging body 17 are arranged in the guide frames 49. Four cell guides 50 are vertically installed to guide the corners. The cell guide 50 is formed in an angle shape, and an insertion guide portion 50a that spreads outward is provided at the upper end portion thereof. Below the cell guide 50, a transport rail extending into the tunnel 2 is provided.
A segment carriage 52 is arranged so that it can travel freely on the 51.

 Next, the operation of this segment carry-in device will be described.

When the segment carry-in truck 46 is loaded into the segment carry-in section 45, the traveling platform 9 of the stacker crane 8 is caused to travel in the direction of arrow A and stopped on the segment carry-in section 45, and the winch 13 is driven to move the lifting body 11 of the truck 46. Lower to the loading platform and hold the holding arm 29 of the tongs cart 19 in the standby position (b).
From the holding position (a) in the direction of arrow F,
Move the holding claw 32 from the release position (d) to the gripping position (c) by the arrow J.
The segment 31 is held by rotating in the direction. Then, the elevating body 11 is raised to lift the segment 31 from above the loading platform of the truck 46, and the traveling platform 9 is caused to travel in the arrow B direction. Then, the stocked shelves 41 are stopped at the storage section 42 position, and the winch 13 and the traveling drive device 10 position the crane side rails 24 so as to face the shelf side rails 44 of the storage section 42. Then, the entry / exit drive motor 27 of the tongs carriage 19 drives the entry / exit wheels 26A to move the tongs carriage 19 in the direction of arrow C so as to project from the crane side rail 24 to the shelf side rail.
The holding arm 29 is extended by the telescopic cylinder 30 and the segment 31 is placed on the segment pedestal 43.
Further, the holding claw 32 is rotated in the direction of arrow I to the release position (d) and the holding arm 29 is shortened.
Is rotated in the direction of arrow E to the standby position (b). After that, the tongs cart 19 is moved backward in the direction of arrow C and returned to the crane side rail 24. By repeating this a plurality of times, the stock work of the segment 31 is completed.

When supplying the segment 31 into the tunnel 2, the stacker crane 8 reverses the stock work to the storage section.
After taking out the segment 31 from 42, move the traveling frame 9 to the arrow B
Then, the elevating body 11 is opposed to the cell guide 50 by traveling in the direction and stopping above the starting pit entrance 3a. Then, the winch 13 lowers the lifting body 11 to the lower limit position to insert the hanging body 17 into the insertion guide portion 50a of the cell guide 50. Further, the stopper block 23a of the fixing device 23 is retracted to move the lifting frame 15
After the connection between the suspension body 17 and the suspension body 17 is released, the wire rope 12 is further extended by the winch 13, and only the suspension body 17 is lowered along the cell guide 50 and stopped on the segment carriage 52. Then, after the holding claw 32 is rotated to the release position (d) and the segment 31 is placed on the segment carriage 52, the hanging body 17 is raised to the fitting position of the elevating frame 15, and the stopper block 23a of the fixing device 23 is fixed. The elevating body 15 and the hanging body 17 are connected and fixed by projecting. After the lifting body 11 is extracted from the cell guide 50, the holding arm 29 is rotated to the standby position (b).

According to the above embodiment, (1) segment loading truck
Stocking work from the cargo bed of 46 to the shelf 41 and carrying-in work from the shelf 41 to the bottom of the starting pit 3 can be performed by one stacker crane, which results in low cost. (2) Compared with the use of conventional overhead cranes and forklifts, the cargo handling line is simple with no delivery of segments 31 in the middle, the cycle time can be shortened, and safety can be improved.
(3) Since the stacker crane 8 is of a hanging type that travels the traveling rails 4 arranged above the ground 7, the installation ground 7
Is effectively used, and the equipment can be installed below the segment transport path 1. (4) When the segment is loaded into the shelf 41, the lifting frame 15 and the hanging body guided by the guide post 14
Since 17 and the work is done with the fixing device 23 fixed,
The lifting body 11 can be accurately positioned. (5) Moreover, when the segment is inserted into the start pit 3, the lifting frame 15 and the suspension body are
Since the suspension body 17 is separated from the suspension body 17 and only the suspension body 17 is lowered, it is possible to easily carry in an extremely high lift in the mine, and the suspension body 17 is guided by the cell guide 50, so that the suspension body 17 can be safely operated. (6) Since the tongs cart 19 is transferred from the crane side rail 24 of the hanging body 17 to the shelf side rail 44 and transferred to the storage section 42 during the stock work of the segment 31, the forks and the like are moved to and from the shelf side. Compared to a stacker crane of the type that transfers a load, a cantilever load is not applied to the crane side, and the transfer of a heavy segment 31 can be carried out very smoothly.

Advantageous Effects of Invention According to the present invention as described above, the guide post is mounted between the storage unit of the low lift and the storage unit of the shelf or between the storage unit and the entrance of the vertical shaft in a state in which the hanging body is attached to the lifting body. Since the segments are moved up and down to be transported, the work space on the ground can be effectively used, and the segment can be transported at high speed with less sway and error, which enables efficient work. Furthermore, in the starting shaft of the high lift, since the hanging body is detached from the elevating body and only the hanging body is lowered by the winch to carry, the high lift can be carried by a simple facility. Further, since the suspended body is guided by the cell guide in the starting shaft, safe and stable vertical transportation can be performed.

In addition, since the segment holding device is provided with the holding cart and the holding arm, loading and unloading of the segment in the storage part of the shelf can hold the segment from above with the crane side rail transferred to the shelf side rail. Therefore, a cantilever load of the segment is not applied to the lifting body, and a heavy segment can be stably held and loaded / unloaded.

[Brief description of drawings]

1 to 5 show an embodiment of a temporary storage / carrying-in facility for a tunnel segment according to the present invention. FIG. 1 is an overall perspective view with a part cut away, and FIG. 2 is a transfer operation to a shelf. FIG. 3 is a perspective view showing a power supply cord, FIG. 4 is a perspective view with a part of the holding arm cut away, FIG. 5 is a perspective view showing loading / unloading work to / from a vertical shaft, and FIG. 6 is a segment. FIG. 7 is a perspective view showing another embodiment of the carry-in section, and FIG. 7 is a schematic side view showing a conventional segment carry-in facility. 1 ... Segment transport route, 2 ... Tunnel, 3 ... Starting shaft, 4 ... Traveling rail, 7 ... Ground, 8 ... Stacker crane, 9 ... Traffic platform, 11 ... Elevating body, 12 ... Wire rope, 13 ... Winches, 14 ... Guide posts, 15 ...
… Lifting frame, 17… Suspended body, 19… Tongs cart (holding cart), 23… Fixing device, 24… Crane side rail, 26A,
26B …… Exit wheel, 29 …… Holding arm, 31 …… Segment, 32 …… Holding claw, 41 …… Shelves, 42 …… Storage section, 43 …… Segment pedestal, 44 …… Shelf side rail, 45 …… Segment loading section, 49 …… Guide frame, 50 …… Cell guide, 50a …… Insertion guide section, 52 …… Segment truck, 61 …… Stacker crane, 62 …… Transport path.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B66F 9/07

Claims (2)

[Claims] Claim: What is claimed is: 1. Temporary storage and loading equipment for tunnel segments, which are used to temporarily store the segments that are transported to the loading section and are sequentially loaded into the starting shaft of the tunnel. The traveling rail is arranged at a predetermined height along the transportation path passing through, and a shelf having a plurality of storage units capable of accommodating segments is installed on the lower side of the traveling rail, so that the traveling rail can be freely moved along the traveling rail. A stacking platform for a stacker crane is provided, and a lifting body with a guide post that can be lifted and lowered is provided on this stacking platform, and the lifting stroke of this guidepost is such that at least the lower end of the lifting platform and the upper end of the shelf are vertical. It is set so as to move up and down over the entrance, and a hanging body that is detachable from the lifting body and can be lowered is disposed at the lower end of the lifting body, and a wire is attached to the hanging body. The lifting and lowering body to which the hoist is connected and the hanging body is mounted is moved up and down, and a winch that can drive the hanging body up and down in the starting shaft is installed on the traveling frame. A temporary storage and carry-in facility for tunnel segments is characterized by the provision of a segment holding device that can hold the segment and a cell guide that guides the lifting and lowering of the suspended body inside the starting shaft. 2. A segment holding device is movable back and forth from the hanging body to the shelf side through a crane side rail arranged on the hanging body and a shelf side rail arranged on the upper part of the storage space of the shelf, And a holding carriage that is separable from the hanging body, and is rotatably and telescopically provided on the holding carriage between a holding position in the hanging direction and a standby position in the horizontal direction, and supports the segment from below at the tip portion. The temporary storage / carry-in facility for a tunnel segment according to claim 1, wherein the temporary storage / carry-in facility comprises a plurality of holding arms having possible holding claws.