JPH08232595A - Segment conveying truck - Google Patents

Abstract

PURPOSE: To convey segments in continuous mode from the rear part of a tunnel up to the rear part of a shield excavator by way of a lateral space part of a succeeding truck of the shield excavator. CONSTITUTION: The present invention relates to a conveying truck which conveys a segment S on a rail 4 installed in a tunnel in parallel to a traveling rail 14 of a succeeding truck 16 from the rear part of the tunnel to a shield excavator 15. A segment housing frame 7, which houses some pieces of segments in a laminated state, is installed to a truck main body 1. When the segment housing frame 7 is placed in a horizontal state and the segments S are loaded, and then reach the succeeding truck 16, this segment housing frame 7 is turned from the horizontal state until it turns to a vertical state in parallel to the side surface of the succeeding truck 16. This construction makes it possible to convey the segments S to the shield excavator passing by the lateral part of the succeeding truck without the intervention of the succeeding truck 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a segment carrier for transporting a segment from the rear side of a tunnel to the rear end of a shield excavator.

[0002]

2. Description of the Related Art In the shield construction method, when lining a tunnel excavation wall surface to be excavated by a shield excavator, a segment is placed on a carriage from the starting shaft to the rear end of the shield excavator, and the segment is transported. It is assembled in a ring shape by an erector device arranged in the rear end of the shield excavator, but behind the shield excavator, auxiliary equipment such as a hydraulic unit for operation of each part of the shield excavator and a control panel, or Since the trailing truck on which the backing material injection equipment for injecting is mounted is disposed between the excavation wall surface and the segment lining, the trailing truck impedes the forward movement of the segment truck.

Therefore, as shown in FIG.
The traveling rails 32 of the trailing carriage 31 and the traveling rails 34 of the segment carriage 33 are laid in parallel with the rails 32 on both sides of the bottom surface of the trailing carriage 31, and the segment carriage 33 loaded with the segment S is located on the side of the trailing carriage 31. It is configured to pass through the space and advance toward the shield excavator. However, in the narrow tunnel space, the trailing rail 32 of the trailing carriage 31
Since it is not possible to widen the space between the traveling carriage 34 of the segment carriage 33 and the segment carriage 33, and when the segment carriage 33 is loaded with the segment S and the side of the succeeding carriage 31 is passed, There is a case in which the end of the segment S protruding toward the succeeding carriage 31 comes into contact with the succeeding carriage 31 and cannot pass therethrough. For this reason, conventionally, after the segment S is transported by the truck 33 to the rear of the succeeding truck 31, the segment S is moved by the hoist H which is arranged along the upper wall surface of the lining 35 as shown in FIG. At present, the means of suspending and transporting to the rear end of the shield excavator is adopted.

[0004]

However, in such a conveying means, the segment S must be moved from the segment carriage 33 to the hoist H, and the transshipment work requires a great deal of labor and labor, and at the same time, Since the segment truck 33 is stopped behind the trailing truck 31 and the transshipment work of the segment S is performed, smoothness is lacked in a series of work processes from the loading of the segment to the assembly of the lining by the erector device. Not only the work efficiency is lowered, but also the work is complicated and there is a problem in terms of safety, and there is a problem that a transport means such as a hoist H must be provided in addition to the segment carriage 33. The present invention has been made in view of such a problem, and of a segment carrier truck capable of continuously transporting a segment from a rear side of a tunnel to a rear end portion of a shield excavator through a lateral space portion of a succeeding carriage. It is intended to be provided.

[0005]

In order to achieve the above-mentioned object, a segment carrier according to claim 1 of the present invention has an axle above the axle between front and rear wheels traveling on a rail laid in a tunnel. A flat rectangular segment storage frame that is wider than the length is provided, and the segment storage frame is at least 90 degrees from the horizontal state on the front and rear support members that have the center portions of the front and rear ends of the segment storage frame erected on the front and rear axles. The structure is such that it is rotatably supported in the vertical direction.

According to a second aspect of the present invention, there is provided a segment carrier truck, in which a segment storage frame having a plane rectangular shape wider than the truck body is arranged on a truck body which runs on rails laid in a tunnel. In the structure, the center portions of the front and rear ends of the segment storage frame are pivotally supported by the front and rear support members of the carriage main body so that the segment storage frame can be vertically rotated at least 90 degrees from the horizontal state.

In the above segment carrier truck, the segment storage frame may be rotated by a lever operation provided on a pillar member or a carriage body, or may be rotated by a motor. further,
In the segment carrier truck described in claim 2, as described in claim 5, the carriage main body is formed into a planar U shape with one side opening toward the outside, and It is preferable that one side portion is configured to be accommodated in the plane U-shaped trolley body by passing through the opening of the trolley body.

Further, as described in claim 6, it is desirable that the segment housing frame is provided with a segment pressing member for pressing the upper surface of the segment. This segment pressing member is formed in an inverted L shape in which segment pressing frames are integrally provided in the upper ends of the vertical legs on both sides in the horizontal direction, and the pair of segment pressing members are arranged in front of and behind the segment storage frame. , The lower ends of the vertical legs on both sides are rotatably supported by the front and rear frame portions of the segment storage frame, respectively, and a lock pin that prevents rotation of the segment pressing member while pressing the segment upper surface with the segment pressing frame. The segment pressing member has a structure in which it is detachably arranged on the rear surface side of the shaft supporting portion.

[0009]

[Function] On the rear side of the tunnel, several pieces of segments are stored in the side boat shape with the bending direction of the segment storage frame on the transport carriage facing the tunnel length direction.
After loading, the upper surface of the uppermost segment is pressed and fixed by the pressing member as necessary, and in this state, the segment carrier is run on the rail toward the shield excavator side. The stacking thickness of several segments is smaller than the width of the segment storage frame. When the segment carrier travels to reach the equipment-equipped subsequent carrier disposed behind the shield excavator, the segment storage frame is rotated from the horizontal state to the vertical state. Then, the loading segment is in a standing state with one end face downward and the other end face upward, and the segment storage width in the tunnel width direction is reduced to the side of the trailing truck without being obstructed by the trailing truck. Can be driven.

When the segment storage frame is rotated to the vertical state, one end surface of the loading segment is received by the inner surface of the one side frame portion of the segment storage frame, and a segment holding member is provided. By this, separation from the segment storage frame is prevented, so that it is possible to change from the horizontal state to the vertical state while surely maintaining the loaded state. In addition, claim 5
As described in, by forming the trolley body in a planar U shape with one side opening, the one side of the segment storage frame when it is in the vertical state even when the height of the frame is low. It can be housed together with the loading segment in the trolley body, and can rotate from a horizontal state to a vertical state without being obstructed by the tunnel lining surface even in a narrow tunnel space.

Further, as described in claim 6, a vertical leg portion rotatably supporting the segment pressing member in the segment housing frame, and a segment pressing frame bent horizontally from the upper end of the vertical leg portion. If the rear side of the vertical leg is configured to be received by the lock pin, the lock pin prevents the segment pressing member from being released even if the segment housing frame is rotated in the vertical state. The frame can hold the segment securely.

As described above, when the segment carrier truck passes the side of the succeeding truck with the segment storage frame in the vertical state and the storage width of the loading segment is reduced,
After returning the segment storage frame to the original horizontal state and transporting the segment to the erector device inside the shield excavator, release the segment pressing member to send the segment to the erector device and assemble the lining with the erector device. It is something to do.

[0013]

Embodiments of the present invention will now be described with reference to the drawings.
FIG. 1 is a plan view of a segment carrier, and FIG. 2 is a side view thereof. In these figures, 1 is slightly longer than the length of the segment S in the bending direction, and the width thereof is the width of the segment S. It is the main body of the bogie that is formed with a width narrower than the width (about 1/2 width), and the front and rear frame parts that are long in the tunnel width direction
Outer frame part that is long in the tunnel length direction between the other end parts of 1a and 1b
1c is integrally fixed, and one side thereof is formed in a planar U shape with an opening 2 entirely. The trolley body 1 has bearing members 1d and 1e integrally provided on the front and rear frame portions 1a and 1b.
A shield excavator 15 (see FIG. 3) from a start shaft (not shown) behind the tunnel by wheels 3 rotatably supported by
(Shown in FIG. 3) is configured to run on the rail 4 laid up to the rear end.

The lower ends of column members 5 and 6 having a constant height are fixed to the upper surfaces of the front and rear frame portions 1a and 1b of the bogie main body 1, and the column members 5 and 6 are mounted on the front and rear frame portions 1a and 1b. The segment storage frame 7 is erected upright, and the segment storage frame 7 is rotatably disposed between the upper ends of the front and rear support members 5, 6. The segment storage frame 7 is formed into a planar rectangular frame slightly larger than the planar shape of the segment S by the rod-shaped front and rear frame portions 71 and 72 and both side frame portions 73 and 74, and the segment S is stored in the frame. It is possible.
Further, the hanging pieces 75 and 76 are fixed to the front and rear ends of the side frame portions 73 and 74, respectively.
Horizontal support members 77, 77 for receiving the front and rear end portions of the curved surface of the segment S are fixed between the lower end facing surfaces of the 76, 76 in a erected state, and at the center portions of the side frame portions 73, 74. Above hanging piece
A strip plate-shaped horizontal support member 79 for fixing the hanging pieces 78, 78 longer than 75, 76 to each other and for receiving the central lower surface of the curved surface of the segment S is provided between the facing surfaces of the lower end portions of the hanging pieces 78, 78. It is fixed in the installed state.

Further, the front and rear frame portions 71 of the segment storage frame 7,
Center shafts 7a and 7b are provided at the center of 72 in the front-rear direction, respectively, and the front-rear center shafts 7a and 7b are fixed to the upper ends of the front-rear support members 5 and 6, respectively. Each of them is rotatably supported. Then, the length dimension from the central shafts 7a, 7b to the one side frame portion 73 of the segment storage frame 7 is made slightly shorter than the height dimension of the trolley body 1 so that the segment storage frame 7 is rotated around the central shafts 7a, 7b. The one-side frame 73 is housed in the carriage main body 1 through the one side opening 2 of the carriage main body 1 when it is rotated from the horizontal state to the vertical state.

Reference numerals 8 and 8 denote front and rear frame portions 7 of the segment storage frame 7.
Bearings 1 and 72, which are laterally inverted L-shaped front and rear segment pressing members laid up and down on the front and rear upper surfaces of the segment S, and whose lower ends project from both sides of the front and rear frame portions 71 and 72, respectively. Piece
Both side vertical legs 8a, 8a rotatably supported by 7c, 7c,
The vertical leg portions 8a on both sides are integrally provided on the upper ends of the vertical leg portions 8a, and are segment pressing frames 8b having a U-shape in a plan view and bent at right angles toward the segment S. Further, the bearing pieces 7c, 7c receive the rear side of the vertical leg portions 8a, 8a of the segment pressing member 8 to rotate the segment pressing member 8 in the direction to release the pressing from the segment S. An insertion hole 10 for blocking the lock pin 9 is formed.

A horizontal base plate 11 is fixed to the rear support member 6 toward the rear, and a rotation transmission mechanism 12 for the rear central axis 7b of the segment housing frame 7 is mounted on the horizontal base plate 11. The rotation transmission mechanism 12 is installed on the lever.
It is configured to be actuated by a turning operation of 13 to turn the segment 7 to one side about the front and rear central shafts 7a and 7b. As the rotation transmission mechanism 12, for example, the central shaft 7
Adopting a ratchet mechanism in which the rotation directions of a and 7b can be switched between clockwise and counterclockwise directions, and by operating the lever 13 to reciprocally rotate, the segment storage frame 7 is moved vertically from the horizontal state. The vertical state is returned to the original horizontal state. The segment storage frame 7 may be rotated by a motor through an appropriate mesh gear mechanism without rotating the segment storage frame 7 by manually operating the lever 13.

As shown in FIGS. 3 and 4, the segment carrier constructed as described above has the rail 4 laid on the bottom surface of the tunnel T in parallel with the trailing carrier rail 14.
It runs on top. On the other hand, the trailing bogie 16 equipped with auxiliary equipment such as hydraulic units for operation of each part of the shield excavator 15 and a control panel, or backfill material injection equipment for injecting between the excavation wall surface and the segment lining is tunnel excavation. Machine 15
In accordance with the excavation of the tunnel excavator 15 integrally with the rail 14
Move up.

Now, on the starting shaft side behind the tunnel,
Segment storage frame 7 of the trolley body 1 of the segment transport trolley
A few pieces (3 pieces in the figure) of segment S
When they are housed in a laminated state with their bending direction facing forward and backward, the lower curved surface of the lowermost segment S is received by the support members 77 and 79 as shown in FIG. It is housed in the mounting frame, and both end surfaces of the loading segment S are prevented from moving to both sides by the facing surfaces of the both side frame portions 73 and 74 of the housing frame 7. Then, the vertical leg parts 8 on both sides of the front and rear segment pressing members 8, 8
The a and 8a are rotated until they are in the upright state, and the lower surfaces of the presser frames 8b and 8b on the upper end side are pressed against the front and rear edges of the uppermost segment S, and the lock pin 9 is inserted.
, The segment pressing member 8 is prevented from rotating in the direction away from the segment S 1.

In this state, when the segment carrier truck is run from the rear of the tunnel toward the shield excavator 15 side and reaches the trailing truck 16, as shown in FIG. 4, one side of the segment storage frame 7 of the truck body 1 is moved. Since the part collides with the other side part of the trailing carriage 16 and cannot move forward any more, the segment storage frame 7 is rotated around the central axes 7a and 7b from the horizontal state to the vertical state. That is, when the lever 13 is reciprocally rotated, the central shaft 7b connected to the rotation transmission mechanism 12 via the rotation transmission mechanism 12 which is a ratchet mechanism is in one direction (the segment storage frame 7 is clockwise in FIG. 4). Only in the vertical direction, the segment storage frame 7 is brought into a vertical state as shown in FIGS.

At this time, the thickness dimension between the rotation center shafts 7a, 7b and the upper surface of the uppermost segment of the loading segment S is larger than the width dimension between the rotation center shafts 7a, 7b and one end surface of the segment storage frame 7. Since the size is small, when the segment storage frame 7 is rotated to the vertical state, one end of the segment storage frame 7 escapes to the opposite end of the trailing carriage 16 to the lower side of the other side and one side opening of the carriage main body 1 is opened. A space having an appropriate width is formed between the surface of the uppermost segment S and the pressing member 8 of the segment S and the succeeding carriage 16 while being accommodated in the carriage main body 1 from the portion 2. That is, the segment storage width in the horizontal state of the segment storage frame 7 is reduced in the vertical state.

When the segment storage frame 7 is in the vertical state,
The stored loading segment S is in a standing state with one end face downward and the other end face upward, and one end face of the loading segment S has one side frame portion 73 of the segment storage frame 7.
The segment pressing member 8 prevents the segment holding frame 7 from being detached from the segment housing frame 7. In this state, the tunnel main body 1 on the other side of the trailing truck 16 is passed along the trailing truck 16 through the truck body 1.

When the carriage main body 1 travels forward from the succeeding carriage 16, the segment storage frame 7 is returned to the horizontal state. That is, when the lever 13 is reciprocally rotated after switching the rotation direction of the rotation transmission mechanism 12 including the ratchet mechanism, the segment storage frame 7 rotates in the opposite direction to the original horizontal state. To do. In this state, it is conveyed to the erector device 17 inside the shield excavator 15, and the lock pin 9 of the segment pressing member 8 is pulled out to push the pressing member 8
Is released from the loading segment S and then the segment S is supplied to the erector device 22 so that the segment lining 18 is assembled by the erector device 22.

In this way, the trolley body 1 carrying the segment S from the rear of the tunnel to the shield excavator 21 retreats to the starting shaft behind the tunnel and carries the next segment. During this backward movement, the trailing truck
When passing the side of 16 the segment storage frame 7 is blocked by the trailing carriage 16 so that the segment storage frame 7 is passed in the vertical state as described above, and then returned to the horizontal state after passing. . It should be noted that such a rotation operation of the segment storage frame 7 may be performed while the carriage main body 1 is traveling, or may be performed while traveling.

7 and 8 show another embodiment of the segment carrier truck of the present invention. In the above embodiment, the bearing member 1 in which the axles of the wheels 3 are provided on the front and rear lower surfaces of the truck main body 1 is shown.
Although the support members 5 and 6 are rotatably supported by d and 1e and the pillar members 5 and 6 are erected on the front and rear upper surfaces of the bogie body 1, in the embodiment of the present invention, the bogie body 1 is not necessary and the wheel 3 is not provided. The pillar members 5 and 6 are erected directly on the axles 21 and 21,
The front and rear support members 5 and 6 have a structure in which the segment storage frame 7 is pivotally supported so as to be vertically rotatable at least 90 degrees from the horizontal state.

That is, the bearing members 5b and 6b which support the axles 21 of the wheels 3 and 3 are fixed to the lower ends of the front and rear strut members 5 and 6, and are fixed to the upper ends of these front and rear strut members 5 and 6. The front and rear center shafts 7 of the segment storage frame 7
The a and 7b are rotatably supported, and the front and rear support members 5 and 6 are connected by a segment storage frame 7 in a side gate shape. The specific structure of the segment storage frame 7, the segment pressing member 8, the rotating means of the storage frame 7, and the like are the same as those in the above-described embodiment, so only the reference numerals are given and the description thereof is omitted.

In the segment carrier truck constructed as described above, the same operation and effect as those of the above-described embodiment can be obtained. In addition, the segment storage frame 7 is placed in the space between the front and rear support members 5, 6 from the horizontal state to the vertical state. It can be rotated smoothly without any obstacle. In addition, as shown in FIG. 8, the storage frame 7 is provided at the lower end portions of the facing surfaces of the pillar members 5 and 6.
There are provided stoppers 5c and 6c which receive the side frame when the is rotated in the vertical direction and prevent further rotation.

[0028]

As described above, according to the segment carrier truck of the present invention, in the segment carrier truck traveling on the rail laid in the tunnel, the flat rectangular segment storage frame is placed between the front and rear pillar members in a horizontal state. Since it is pivotally supported so that it can rotate vertically at least 90 degrees, several segments of the segments are neatly loaded in the segment storage frame from the rear of the tunnel to the rear end of the shield excavator on the rail. In addition to being able to carry, the segment loading width that projects in the tunnel width direction from the transport carriage can be easily reduced by moving the segment storage frame from the horizontal state to the vertical state during the transport, and therefore, the passage of the transport carriage Even if there is a trailing carriage that hinders the movement of the segment, move the segment to another segment transporting means such as a hoist as before. It is possible to transport the loaded segment smoothly to the rear part of the shield excavator by keeping the segment storage frame in the vertical state and passing through the transport cart without any interruption. The work process of can be efficiently performed.

Further, as described above, since the loading segment is housed in the segment housing frame, even if the segment housing frame is rotated to the vertical state, one end surface of the loading segment is placed in the housing frame. If the inner surface of the side frame can be surely received and the pressing member presses the surface of the loading segment, there is no possibility that the loading segment will separate from the storage frame, and a stable loading state. It can be transported in. Further, as described in claim 5, by forming the trolley body in the shape of a U-shape with one side opening, when the segment storage frame is in a vertical state even when the height is low. One side can be stored together with the loading segment in the trolley body, and even in a narrow tunnel space, the turning operation from the horizontal state to the vertical state can be performed smoothly without being obstructed by the tunnel lining surface. It is something.

Further, as described in claim 6, a vertical leg portion rotatably rotatably supporting the segment pressing member in the segment storage frame, and a segment pressing frame bent horizontally from the upper end of the vertical leg portion. And the rear surface of the vertical leg is received by the lock pin, so that the lock pin prevents the segment pressing member from being released even when the segment storage frame is rotated in the vertical state. The presser frame can hold the segment securely.

[Brief description of drawings]

FIG. 1 is a plan view of a segment carrier truck,

FIG. 2 is a side view thereof,

FIG. 3 is a simplified vertical cross-sectional side view showing a state in which a segment is being conveyed toward a shield excavator,

FIG. 4 is a rear view of the segment carrier truck that reaches the rear of the trailing carriage,

FIG. 5 is a rear view showing a state in which the trailing vehicle is passing on the side,

FIG. 6 is a plan view of the segment carrier at that time,

FIG. 7 is a plan view showing an embodiment of another segment carrier truck of the present invention,

FIG. 8 is a side view thereof,

FIG. 9 is a simplified vertical cross-sectional view for explaining a conventional conveying means.

FIG. 10 is a simplified vertical cross-sectional view of a state where the hoist is being conveyed.

[Explanation of symbols]

 1 Bogie main body 2 Opening 4 Rails 5 and 6 Support members 7 Segment storage frames 7a and 7b Central shaft 8 Segment holding member 9 Lock pin 10 Insert hole 15 Shield excavator

Claims (6)

[Claims] 1. A segment storage frame having a flat rectangular shape wider than the axle length is arranged above the axles of front and rear wheels traveling on rails laid in a tunnel, and the center of the front and rear ends of the segment storage frame. At least 90 segments from the horizontal position of the segment storage frame on the front and rear strut members that are erected on the front and rear axles.
The segment carrier is characterized by being pivotally supported so as to be rotatable in a vertical direction. 2. A segment storage frame having a plane rectangular shape wider than the truck main body is disposed on a truck main body running on rails laid in a tunnel, and a center portion of front and rear ends of the segment storage frame is a truck main body. The segment carrier truck, wherein the front and rear pillar members are provided with a segment storage frame that is pivotally supported so as to be vertically rotatable at least 90 degrees from a horizontal state. 3. The segment carrier truck according to claim 1 or 2, wherein the segment storage frame is rotated by a lever operation provided on a pillar member or a carriage body. 4. The segment carrier truck according to claim 1, wherein the segment storage frame is rotated by a motor provided on a pillar member or a carriage body. 5. The trolley body is formed in a planar U-shape with one side opening toward the outside, and one side of the segment storage frame is formed in the planar U-shape trolley body. The segment carrier truck according to claim 2, wherein the segment carrier truck is constructed so as to pass through the opening of the truck main body and be accommodated therein. 6. The segment housing frame is provided with a segment pressing member for pressing the upper surface of the segment, and the segment pressing member is provided with a segment pressing frame integrally provided on the upper ends of the vertical legs on both sides in the horizontal direction. The pair of segment pressing members are formed in an L shape, and a pair of the segment pressing members are arranged in front of and behind the segment storage frame, and the lower ends of the vertical leg portions on both sides are rotatably supported by the front and rear frame portions of the segment storage frame. At the same time, a lock pin for preventing rotation of the segment pressing member in a state where the segment pressing frame is pressed by the segment pressing frame is detachably arranged on the rear side of the shaft supporting portion of the segment pressing member. The segment carrier according to claim 2.