JPH1018791A - Segment erector device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To erect a conveyed segment into a specified position of a tunnel internal wall by providing a rear part of an excavator body with a vertical moving body, a horizontal moving body, a longitudinal moving body, a turning body and a rotating body, and providing the rotating body with a grip. SOLUTION: Vertical guides 31 are provided on both lateral sides of a support wall 22 of a rear drum 13 so as to support a vertical moving body 32. Lateral guides 34 are formed at the vertical moving body 32 so as to support a lateral moving body 35 movably. A longitudinal moving body 38 is movably supported to the lateral moving body 35 by a longitudinal rod. A turning body 41 is supported to the longitudinal moving body 38 through a bearing so as to be turnable around an axis parallel to an excavating direction. A support cylinder 43 is fixed to the turning body 41, and a moving cylinder 44 is movably fitted to the support cylinder 43. A rotating body 48 is rotatably supported to the moving cylinder 44 by a rotating shaft 47 through a support body 46. A grip is mounted to the rotating body 48 so as to be able to hold a segment. The grip is thereby moved, turned and rotated in three directions in a tunnel so as to easily erect the segment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a segment erector device for assembling a segment carried into an existing tunnel on an inner wall surface of the tunnel.

[0002]

2. Description of the Related Art Excavation of a tunnel having a predetermined cross-sectional shape is performed, for example, using a shield excavator. That is, while rotating the cutter head mounted on the front part of the excavator body, extending the shield jack and pressing it against the existing segment S, the excavator body moves forward while receiving the pressing reaction force, and The head excavates the tunnel by excavating the ground in front. Then, the tunnel is constructed by mounting the new segment S in the space between the existing segment S formed by contracting the shield jack and the existing segment S.

[0003] The cross-section of a tunnel formed by excavation varies depending on the purpose of use, and in addition to a circular cross-section, there is an elliptical cross-section, a square cross-section, a rectangular cross-section, a horseshoe cross-section and the like. In this case, for example, in a rectangular vertical section tunnel as shown in FIG. 6, the shape of the segment to be assembled on the inner wall surface of the tunnel after excavation is also adapted to this tunnel section shape. You need a kind of thing. Conventionally, when assembling a segment on the inner wall surface of an existing tunnel, a large number of segments are mounted on a transport trolley, carried into the existing tunnel, and an erector device provided at the rear of the shield excavator holds the segment, It was moving to the position.

[0004]

However, in the rectangular vertical section tunnel shown in FIG. 6 described above, the width of the existing tunnel is narrow, whereas the eight types of segments are long because the number of divided segments is small. It has become. for that reason,
The segment cannot be loaded in a horizontal and horizontal state so as to match the assembly direction, and must be loaded in a state parallel to the loading direction. Therefore, when transferring the segment from the segment carrier to the erector device, the operator must change the direction of the segment by using a predetermined device, and the work is performed in a narrow space. There was a problem that it took a long time.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a segment erector device in which the burden on an operator is reduced, safety is improved, and workability is improved. Aim.

[0006]

According to a first aspect of the present invention, there is provided a segment erector device for assembling a segment carried into an existing tunnel to an inner wall surface of a tunnel, the segment erector device being provided at a rear portion of an excavator body. A vertical moving body movably supported in a vertical direction perpendicular to the excavation direction, a horizontal moving body movably supported by the vertical moving body in a horizontal direction perpendicular to the excavation direction, and the horizontal movement A fore-and-aft moving body movably supported by the body along the excavation direction, a revolving body rotatably supported on the fore-and-aft moving body with an axis parallel to the excavation direction, and a cross-section orthogonal to the revolving body. A rotating body is supported rotatably at a predetermined angle with an axis, and a grip mounted on the rotating body and capable of holding the segment is provided.

Therefore, the vertical moving body is moved in the horizontal direction perpendicular to the digging direction, or the horizontal moving body is moved in the horizontal direction perpendicular to the digging direction, with respect to the segment carried into the existing tunnel. By moving the front and rear moving body along the excavation direction, or by rotating the revolving body with an axis parallel to the excavation direction, or by rotating the revolving body at a predetermined angle with an axis perpendicular to the excavation direction, The segment received by approaching the grip mounted on the rotating body is moved again in the same manner, and the segment held by the grip is assembled at a predetermined position on the inner wall surface of the tunnel.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 5 is a plan view of a segment elector device according to an embodiment of the present invention, FIG. 2 is a side view of the segment elector device, FIG.
FIG. 4 is a schematic cross-sectional view of the shield excavator to which the segment erector device is applied, and FIG.

As shown in FIG. 1, in the shielded excavator, the excavator body 11 is formed by fitting a cylindrical front body 12 and a rear body 13 with a seal member 14 so as to be movable back and forth. . The front body 12 has a rectangular cylindrical shape 3
The two bodies 12a, 12b, 12c are supported by a guide member 15 fixed to a front portion of the rear body 13 so as to be arranged vertically in a direction substantially orthogonal to the excavation direction and to be relatively movable in the left and right directions in the excavation direction. Have been. And front torso 1
A fixed jack 16 is provided between each of the two bodies 12a, 12b, and 12c. In addition, cutter heads 17a, 17b, and 17c are respectively rotatably mounted on front portions of the respective bodies 12a, 12b, and 12c of the front body 12, and can be driven and rotated by drive motors. Further, a plurality of attitude jacks 18 are provided between each of the front bodies 12 a, 12 b, 12 c and the rear body 13.

In the front part of the front body 12, a chamber chamber 19 is formed in the inside of the excavator body for taking in soil such as earth and sand or drunks excavated by the cutter heads 17a, 17b and 17c. The front part of the screw conveyor 20 arranged in the inside 11 is open, and the rear end part of the screw conveyor 20 extends to a soil treatment facility (not shown). A plurality of shield jacks 21 are arranged side by side in the circumferential direction at the rear part of the rear trunk 13 and
An erector device 23 for assembling the segments A to H is provided on a support wall 22 fixed to the rear of the vehicle.

As shown in FIGS. 1 to 4, a support wall 22 is formed at a rear portion of the rear body 13, and a pair of left and right sides of the support wall 22 extend vertically. Vertical guide 31 is formed. The vertical moving body 32 moves along the pair of vertical guides 31.
Are movably supported, and can be moved in the Y direction by the vertical driving device 33. Further, a pair of left and right guides 34 are formed on the vertical moving body 32 along the left and right direction, and a left and right moving body 35 is movably supported along the pair of left and right guides 34. It can move in the X direction. The left and right moving body 35 is movably supported by a pair of front and rear rods 37 extending in the front and rear direction, and can be moved in the Z direction by a front and rear slide jack 39.

A revolving body 41 is supported on the front-rear moving body 38 by a bearing 40 so as to be revolvable with an axis O parallel to the Z direction along the excavation direction.
2 can be turned. A support cylinder 43 is fixed to the revolving unit 41. A movable cylinder 44 is movably fitted to the support cylinder 43, and can be moved in the P direction by an auxiliary slide jack 45.
A support 46 is fixed to the movable cylinder 44. That is, the P direction is selectively the Y direction or the X direction. The revolving body 41 is revolved by the revolving drive motor 42, and the directions of the support cylinder 43 and the moving cylinder 44 are shifted in the vertical direction or the horizontal direction. By extending and contracting the auxiliary slide jack 45 in this state, the support 46 can be moved in the Y direction or the X direction.

A rotary body 48 is supported on the support 46 by a rotary shaft 47 so as to be rotatable approximately 90 degrees in the S direction, and can be rotated by a rotary jack 49.
The rotating body 48 has segments A to H to be described later.
A locking mechanism (not shown) is mounted as a grip capable of holding the support cylinder, and four support cylinders 50 are mounted.

A rail 24 is provided along the longitudinal direction of a large number of beams (G, H) installed in the existing tunnel, behind the shield excavator constructed as described above. . A plurality of segments A to H are mounted on the rail 24, and the segment transport device 25 that loads the segments A to H into the existing tunnel, and the plurality of segments transported into the existing tunnel by the segment transport device 25. And a segment supply device 26 that supplies the segments A to H to the erector device 23 one piece at a time.

The segment transport device 25 has a pair of front and rear transport trucks 51 and 52 connected to each other.
2 has almost the same configuration, and segment A for one ring
To H, and can be self-propelled by a driving device (not shown). That is, the transport carriages 51 and 52 are provided with holding claws (not shown) for holding the front, rear, left and right of each of the segments A to H, and are movable up and down. Each of the transport carts 51 and 52 has a segment A to H.
And a delivery roller (not shown) for sending the delivery to the front in the excavation direction.

On the other hand, the segment supply device 26 is also
4, and is provided with a delivery roller (not shown) for delivering the segments A to H forward in the excavation direction. A moving frame 53 is attached to the segment supply device 26 so as to be able to move back and forth. A base end of a turning arm 54 is pivotally attached to the moving frame 53 so that the moving jack 53 can be turned up and down by a turning jack 55. It has become. The rotating arm 54 extends forward in the digging direction,
Reversing frame 56 into which segments A to H are fitted at the tip
Are pivotally mounted, and can be rotated by a reversing jack 57. A segment gripping mechanism 58 is mounted on the reversing frame 56.

Here, a method of constructing a tunnel using the shield excavator of the present embodiment configured as described above will be described. As shown in FIG. 5, when all of the shield jacks 21 are extended while rotating the cutter heads 17a, 17b, 17c by the drive motor, the excavator body 11 including the front body 12 and the rear body 13 has an existing structure. Of the cutter head 17 by the reaction force from the segment S
a, 17b and 17c excavate the ground in front to excavate a tunnel having a rectangular cross section.

On the other hand, in the segment transport device 25,
Segments A to H for one ring are transport carriers 51 and 52, respectively.
Are held at each stage by a plurality of holding claws provided at the respective positions. In this state, each of the transport vehicles 51 and 52 moves along the rail 24 in the existing tunnel, thereby carrying the mounted segments A to H. Then, the transport cart 51,
When 52 approaches the segment supply device 26 on the rail 24, its movement is stopped, the delivery roller is operated, and
The lower segment C is sent to the segment supply device 26.

In the segment supply device 26, the transport vehicle 5
The roller C sends out the segment C sent out from the roller 1 and sends it out as it is.
Grips. Then, the segment supply device 26 moves forward, and by rotating the rotating arm 54 and the reversing frame 56, as shown by a two-dot chain line in FIG. . The erector device 23 receives the segment C held by the segment supply device 26 in an upright state.

In the segment transfer device 25, FIG.
As shown in (1), the lower segment C is sent out to the segment supplying device 26 by the sending roller, and then the segment B is lowered and sent out to the segment feeding device 26 by the sending roller. Thus, the transport vehicles 51, 52
Indicates the mounted segments A to H as C, B, A, D, E,
The data is sent to the segment supply device 26 in the order of F and GH.

Then, the segment B gripped by the elector device 23 is mounted in a space between the shield jack 21 and the existing segment S formed by contracting one shield jack 21. By this repetition, the tunnel is constructed by assembling the segments A to H grasped on the inner wall surface of the existing tunnel by the erector device 23.

That is, in the erector device 23, first, as shown in FIGS. 1 to 5, the vertical moving body 32 is moved in the Y direction by the vertical driving device 33, and the left and right moving body 35 is moved by the left and right driving device 36. The movement in the X direction causes the rotating body 48 having the gripper to face the segment C held by the segment supply device 26 in an upright state.
Next, the front and rear moving body 3 is moved by the front and rear slide jack 39.
8 in the Z direction, the revolving body 41 is revolved by the revolving drive motor 42, and the auxiliary slide jack 45 is expanded and contracted in a state where the support cylinder 43 and the moving cylinder 44 are positioned vertically or horizontally. Then, the support 46 is minutely moved in the Y direction or the X direction to adjust the position of the gripper and the segment C. Then, in this state, the segment C is connected to the rotating body 46 of the erector device 23 using a gripper, and the support cylinder 50 is driven to hold the segment C.

When the elector device 23 holds the segment C, the segment supply device 26 releases the holding of the segment C and returns to the original position to hold the next segment B. On the other hand, in the elector device 23, the rotary jack 4
9, the rotating body 48 is rotated by approximately 90 degrees in the S direction to reverse the held segment C.
To the inner wall surface of the existing tunnel. And again,
The segment C held by the vertical drive device 33, the left and right drive device 36, and the front and rear slide jack 39 is moved to a predetermined assembly position. Here, the turning drive motor 42
After adjusting the position in the Y direction or the X direction using the auxiliary slide jack 45, the segment C is assembled on the inner wall surface of the existing tunnel.

As described above, the transport carts 51 and 52 of the segment transport device 25 carry the segments A to H on each stage, carry them into the existing tunnel, and send them out to the segment supply device 26 in a predetermined order. 26 receives the segments A to H one by one in a horizontal state, and inverts them in a predetermined space to make them stand up.
Can be supplied to Then, the erector device 23 moves in the existing tunnel in the up-down direction, the left-right direction, and the front-rear direction, receives the segments A to H one by one in order, and turns the segments A to H inside the existing tunnel by inverting them sideways. When the tunnel is constructed, the erector device 23 can receive the segments A to H in a predetermined order and can easily assemble them.

[0026]

As described in detail in the above embodiment, according to the segment elector device of the present invention, the vertical movable body can be freely moved along the vertical direction perpendicular to the excavation direction at the rear of the excavator body. The vertical moving body is movably supported by the vertical moving body along a horizontal direction orthogonal to the excavation direction, and the front and rear moving body is movably supported by the horizontal moving body along the excavation direction. A revolving body is pivotally supported on the moving body with an axis parallel to the excavation direction, and a revolving body is supported on the revolving body so as to be rotatable at a predetermined angle with an axis perpendicular to the excavation direction. With the grip that can be held, the grip moves vertically, horizontally and forward and backward in the existing tunnel to receive the segment, and turns the received segment according to the installation position This segment can be rotated to face the inner wall surface of the existing tunnel, and this segment can be easily assembled. As a result, the burden on the operator is reduced, safety is improved, and workability is improved. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a plan view of a segment erector device according to an embodiment of the present invention.

FIG. 2 is a side view of the segment erector device.

FIG. 3 is a front view of the segment erector device.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

FIG. 5 is a schematic sectional view of a shield excavator to which the segment erector device is applied.

FIG. 6 is a schematic view of a rectangular longitudinal section tunnel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Excavator main body 12 Front trunk 13 Rear trunk 17a, 17b, 17c Cutter head 21 Shield jack 23 Elector unit 25 Segment transport unit 26 Segment supply unit 32 Vertical moving body 35 Left and right moving body 38 Front and rear moving body 41 Revolving body 46 Supporting body 48 Rotating body 50 Support cylinder A to H segment

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Michio Furui 1-1-1, Wadasaki-cho, Hyogo-ku, Kobe-shi, Hyogo Mitsubishi Heavy Industries, Ltd. No. 25-1, Taisei Construction Co., Ltd. (72) Inventor Osamu Mochizuki 1-25-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo Inside Taisei Construction Co., Ltd. No. 1 Taisei Construction Co., Ltd.

Claims (1)

[Claims] 1. A segment erector device for assembling a segment carried into an existing tunnel to an inner wall surface of a tunnel, comprising: a vertical moving body movably supported at a rear portion of an excavator body along a vertical direction orthogonal to a digging direction. A horizontal moving body movably supported by the vertical moving body along a horizontal direction orthogonal to the excavation direction; a front-rear moving body supported by the horizontal moving body movably along the excavation direction; A revolving body rotatably supported on the moving body with an axis parallel to the excavation direction, a revolving body rotatably supported on the revolving body with an axis perpendicular to the excavation direction by a predetermined angle, and A segment erector device comprising: a grip mounted to hold the segment.