JP2668640B2 - Electa device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an erector device which is mounted on a rear portion of a shield machine and used for segment assembly of tunnels of various cross-sections such as circular, elliptical, horseshoe-shaped, multiple circular and rectangular, and column segment assembly. Particularly, the erector is most suitable for segment assembly and column segment assembly in a compound cross section tunnel in which a vertical trapezoidal cross section is integrally combined on both sides of a tunnel with a circular cross section such as a triple cross section compound circular cross section. It concerns the device.

[0002]

2. Description of the Related Art A typical example of a conventional general elector device includes a gate frame. However, in this type of elector device, as shown in FIGS. Both side legs of a gate-shaped telescopic frame 33 are slidably supported in a radial direction by a swivel ring 31 that swivels in the circumferential direction, and are slid by a hydraulic cylinder 34. A segment grip 35 is provided at the center of the telescopic frame 33. Then, the segment piece S carried below the center of the tunnel is inserted into the telescopic frame 3.
3 is extended and grasped by the segment grasping portion 35, the telescopic frame 33 is contracted and pivoted to a predetermined position by the pivot ring 31, and then the telescopic frame 33 is extended,
The segment piece S is assembled by positioning it in an assembly position by a sliding cylinder (not shown) of the segment grip portion 35 and constructing the segment piece S.

As other prior art, Japanese Patent Laid-Open No. 4-36
There is an elector device described in JP-A-6299. In this device, two sets of one-arm type arms having a segment grip portion at the tip are arranged on a revolving drum in a direction in which respective guide cylinders are orthogonal to each other, and each one-arm type arm is radially arranged via the guide cylinder. It has a structure that is slidably supported on. Then, one of the two pairs of arms is used to assemble one side of the pair of pillar segments to be installed between the upper and lower joint portions of the circular cross-section tunnels adjacent to both sides of the central circular cross-section tunnel. The one-arm type arm is used to assemble the column segment on the other side. Other prior arts include JP-A-2-171499 and JP-A-3-171499.
There is one described in Japanese Patent No. 2499.

[0004]

However, the above-mentioned conventional erector device or the erector device described in the above publication has the following disadvantages.

A. In the conventional erector device: When assembling segments in a tunnel having a compound cross-sectional shape in which a plurality of circular cross-sections are overlapped, such as a triple irregular compound circular cross-sectional shape, an erector device corresponding to each tunnel of each circular cross-section is provided. Therefore, a plurality of erector devices will be provided at the rear of the shield machine, and the structure will be complicated.

Assembling work of the segments in one circular cross-section tunnel because the pillar segments standing between the adjacent tunnels of the composite cross-section shape may hinder the turning of the segment pieces gripped by the segment grips. May also come to support.

[0007] It is not possible to assemble a segmental piece (usually a Y-shape) arranged between adjacent tunnels having a complex sectional shape or assemble a column segment.

B. In the erector device of the above publication: When inserting the pillar segment between the upper and lower segments, the upper segment tends to hang down, so it is necessary to push up the upper segment,
Since the elector device itself does not have a push-up mechanism, an auxiliary machine must be used.

Since it is structurally impossible to assemble the segments in the side tunnels adjacent to the central tunnel, it is necessary to equip a dedicated erector device for segment assembly in each side tunnel. For this reason, the equipment cost is increased, the structure of the rear part of the shield machine becomes complicated, and there is a possibility that the equipment of the erector device is restricted.

Since the segment pieces are carried in to the erector device in a plurality of systems such as in the center of the tunnel and on both sides thereof, a plurality of carrying-in devices are required and the structure becomes very complicated.

The present invention has been made in view of the above-mentioned points. 1) A segment in a tunnel having a composite cross-sectional shape including a central tunnel used for a triple-circular composite circular cross-section, etc. and tunnels adjacent to both sides of the central tunnel. One request that the assembly can be done over the entire range, 2) the pillar segments between adjacent tunnels can be assembled, and 3) the upper segment can be pushed up when inserting the pillar segments between the upper and lower segments. The present invention provides an erector device that can be achieved by the above device.

[0012]

The erector device of the present invention is mounted at the rear of a shield machine and has a circular, elliptical,
For tunnels of various cross-sections, such as
Electrification used in the assembly of components and pillar segments
And a) the seal that is pivotable in a vertical plane orthogonal to the longitudinal direction of the tunnel at the center of the tunnel.
To pivot the drum that is provided on the rear of de excavator, at least one pair of articulated erector arm, provided with a vertical axis and symmetrically through the center of the orbiting drum, b) the
Each erector arm has an end that is rotatable relative to each other in a vertical plane.
And a first arm and a second arm connected to each other.
The base end of the first arm is the same as the center of the turning drum
Is pivotally mounted in a vertical plane at a position biased toward
At the tip of the second arm, the base end of the segment grip is
Pivotally mounted in a vertical plane, c) said first arm,
The second arm and the segment gripper have
D) turning the turning drum;
And rotate each arm of the erector arm
By extending it in the radial direction of the tunnel.
The grip part can be moved to any position in the tunnel.
Make up .

According to a second aspect of the present invention, e) each of the rotary drive devices is arranged between a swiveling drum and a first arm, between a first arm and a second arm, and between a second arm and a segment grip portion, respectively. Ri Do from the hydraulic cylinder is interposed, the
In the first arm, a hydraulic cylinder supports the turning drum side
By extending and contracting as a fixed point, it is suspended around the base end.
Rotating in a plane and said second arm is a hydraulic cylinder
Can be extended and retracted with the first arm side as a support fixing point.
And the segment rotates about the base end, and the segment
In the grip, the hydraulic cylinder supports the second arm side as a fixed point.
It can be configured to rotate around the base end by performing the expansion and contraction operation .

According to a third aspect of the present invention, b ') the first arm and the second arm of each of the erector arms are integrally connected to each other.
The arm may be a book arm, or at least one of the first arm and the second arm may be further divided into a plurality of arms, which are rotatably connected to each other, and a rotation drive device may be provided.

A circular shape, an oval shape, a horseshoe shape according to claim 4,
The erector device of the present invention for use in assembling segments of tunnels having various cross-sections such as multiple circles and rectangles includes: A) the shield excavator which is capable of turning at a central portion of the tunnel in a vertical plane perpendicular to the longitudinal direction of the tunnel ; to instrumented handed <br/> times drum rear, provided with an articulated erecta arm of at least one aircraft, B) the erector arms are mutually
A first arm having an end connected rotatably in a vertical plane
A second arm, wherein the base end of the first arm is
A second arm which is rotatably mounted on a ram in a vertical plane;
At the front end, the base end of the segment gripper is
Is rotatably pivoted, C) said first arm, said second A
Rotation of the arm and the segment gripper
A driving device is provided, and D) when the turning drum is turned,
First, rotate each arm of the above-mentioned erector arm to tunnel
By extending the segment grip in the radial direction of
It is configured to be able to move to any position in the tunnel .

[0016]

According to the erector device of the present invention having the above-mentioned structure, for example, when assembling segments in a tunnel having a compound deformed section in which a vertically oriented substantially trapezoidal section tunnel is integrally provided on both sides of a central tunnel having a circular section. By sequentially loading the segment pieces below the central portion of the central tunnel, the swiveling drum is swung (moving in the circumferential direction (X direction) of the tunnel) and the first articulated erector arm is moved.
By appropriately performing the swing rotation (movement in the radial direction (Y direction) of the tunnel) of the second arm and the segment gripper, after the segment gripper of one of the erector arms grips the segment piece, positioning conveys the segment piece to a predetermined assembly position, with respect to the second arm
By rotating the segment gripper,
Adjust the tilt and assemble the segments. Subsequently, after the segment holding portion of the other erector arm holds the segment piece, the segments are assembled in the same procedure. Since the paired erector arms are pivotally attached to the revolving drum so that they are offset from the center to one side, it becomes difficult for the erector arms to interfere with each other, and by selecting the erector arm to be used during segment assembly. The turning angle of the turning drum can be minimized, and the assembling work can be performed efficiently. Move the segment grip part back and forth.
(Movement in the axial direction (Z direction) of the tunnel)
By doing so, the positioning range of the segment can be further expanded.
You .

Thereafter, the segments are sequentially assembled along the inner wall of the tunnel having the irregular cross section by alternately using the two sets of erector arms. In particular, the inner wall of the side tunnel adjacent to both sides of the central tunnel can also be moved to any assembly position by rotating each arm of the articulated erector arm and extending it in the radial direction of the tunnel, The segments can be assembled over the entire area of the inner wall of the central and side tunnels without using a separate erector device.

Further, when the pillar segments are inserted between the segments of the upper and lower joints between the central tunnel and the adjacent tunnels on both sides to assemble, the pillar segments are gripped by the segment gripping portions of one of the erector arms, and the other is gripped. By pushing up the segment above the assembling position with the segment gripping part of the erector arm, the interval between the upper and lower segments of the assembling position of the strut segment can be widened, and in this state, the strut segment is moved to the assembling position by one of the erector arms. It can be inserted securely.

When assembling the segments along the inner wall of a tunnel having a horseshoe shape or a general circular cross section, not limited to the composite deformed cross section, a pair of erector arms are alternately used to perform the same procedure as described above. , Segments can be assembled efficiently.

In the erector device according to the second aspect, a heavy segment piece is gripped by providing a hydraulic cylinder across the swiveling drum and the arm, the arm and the arm, or the arm and the segment gripping portion. Since the hydraulic cylinders share the moment acting on each arm at this time, the posture of the arm with respect to the turning drum, the posture of the segment gripping portion with respect to the arm, and the like can be reliably held.

In the erector device according to the third aspect, the structure of the erector arm can be simplified or the moving range of the segment gripping portion can be further expanded according to the sectional shape of the tunnel.

In the erector device according to the fourth aspect, when the segments are assembled in the tunnel having various irregular cross-sections, the segment pieces are sequentially loaded below the central portion of the tunnel so that the revolving drum rotates (in the circumferential direction of the tunnel ( Movement in the X direction), swinging rotation of each arm of the articulated erector arm and the segment grip (movement in the radial direction (Y direction) of the tunnel), and back and forth movement of the segment grip (axial direction of the tunnel). (Movement in the Z direction) is appropriately performed, and after the segment gripping portion of at least one erector arm grips the segment piece, the segment piece is conveyed to a predetermined assembly position and positioned,
Assemble the segments. When one erector arm is used, the above operation is repeated to sequentially assemble the segments along the tunnel inner wall having the irregular cross section. When assembling the segment in the tunnel of the multi-section composite irregular cross section of the vertical cross section of the central tunnel with the substantially large diameter section integrated type on both sides of the circular tunnel, especially for the inner walls of the side tunnels adjacent to both sides of the central tunnel, By rotating each arm of one articulated erector arm and extending it in the radial direction of the tunnel, the segment gripper can be moved to an arbitrary assembly position, without using another erector device. Segments can be assembled over the entire extent of the inner walls of the central and side tunnels. In the case of the erector device of the present invention, unlike the erector device according to claims 1 to 3, it is impossible to assemble the strut segments. There is the advantage that the segment pieces can be assembled over the entire range.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the erector device of the present invention will be described below with reference to the drawings.

FIG. 1 is a side sectional view showing a tunnel shield excavator having a compound deformed section and an erector device mounted on the rear part thereof, and FIG. 2 is a state in which a segment gripper of each erector arm is turned to an upper fixed position. MM of FIG. 1
FIG.

As shown in FIG. 1, an erector device 2 is rotatably arranged via a revolving drum 5 at the center of a radial support frame 3 provided in a shield rear body 1a of a shield machine 1. Have been.

The swiveling drum 5 is rotatably arranged by 200 ° left and right by a swivel bearing 4 fixed to the support frame 3. And the turning drum 5 is
It is turned by a hydraulic motor or an electric motor (not shown) provided on the support frame 3.

As shown in FIG. 2, in the revolving drum 5, the base end portions of the pair of articulated erector arms 6L and 6R are symmetrical with respect to the vertical axis I-I passing through the center of the revolving drum 5 and the centers thereof. Each of them is pivotally mounted so as to be deviated downward from a horizontal axis JJ passing therethrough. Each erector arm 6 is, in this example,
A first arm 7 and a second arm 8 whose ends are rotatably connected to each other in a vertical plane via a shaft coupling 8a;
The base end of the arm 7 is pivotally connected to the revolving drum 5 via a shaft coupling 7a so as to be rotatable in a vertical plane. Further, the forked base of the segment grip 9 is fitted to the tip of the second arm 8 so as to be sandwiched as shown in FIG.
a so as to be rotatable in a vertical plane. The segment gripping portion 9 includes known gripping means 9b for gripping the segment pieces S one by one, and the gripping means 9b is moved in the axial direction of the tunnel (Z direction in FIG. 1) by the slide jack 9c. Is installed as. In this example, the support portion (hole) of the segment piece S
An operator uses a structure in which a worker connects the tip of the gripping means 9b (hole) with a pin (not shown). In addition, for example, a suction-type gripper may be used as the gripper 9b.

A bracket 7b is integrally fixed to the base end of the first arm 7, and both ends of a hydraulic cylinder 10 are pivotally mounted between the bracket 7b and the revolving drum 5, and a second arm 8 is provided. Both ends of the hydraulic cylinder 12 are pivotally mounted between the bracket 8b fixed to the middle portion of the first arm 7 and the segment grip portion 9, and the middle of the bracket 7c and the second arm 8 fixed to the middle portion of the first arm 7. Both ends of the hydraulic cylinder 11 are pivotally mounted between brackets 8b fixed to the parts, and are interposed respectively. Then, the first arm 7 rotates in a vertical plane about the shaft coupling 7a as the hydraulic cylinder 10 expands and contracts with the swiveling drum 5 side as a support fixing point, and the second arm 8 rotates in the hydraulic cylinder 11 Rotates about the shaft joint 8a by expanding and contracting with the first arm 7 side as a support fixing point, and further, the segment gripping portion 9
Is rotated about the shaft coupling 9a as the hydraulic cylinder 12 expands and contracts with the second arm 8 side as a supporting fixed point.

By the way, in the present embodiment, the erector device 2 has a composite irregular cross section in which vertically oriented trapezoidal side tunnels B and C are integrally combined on both sides of a central tunnel A having a circular cross section as shown in FIG. Is used for assembling segments in a tunnel, but for the excavation of a tunnel having such a complex cross section that corresponds to a subway station portion, for example, the excavation method described in Japanese Patent Laid-Open No. 4-179796 is used. . That is, a tunnel (circular cross section) between stations is excavated by a normal shield machine, and at the station part, another shield machine is added to the machine at the shaft provided at the starting point of the station, for example triple It is to be converted into a circular shield machine. Then, a wide space (a section of a cross section such as a triple circle) as a station is formed by the modified shield machine, but when the shaft reached at the end of the station, the added machine is removed there, Return to the original shield machine for the circular section. Also in the shield machine 1 of the present example, an auxiliary shield machine is detachably added to both sides of the shield machine described in the above publication, that is, a general shield machine used for excavating a circular sectional tunnel. A ream circular shield machine can be used. In addition, the code | symbol 21 in FIG. 1 is a perfect-circle holder, 22 is a water supply pipe, and 23 is an exhaust pipe.

Next, an example of the operation of assembling the segments (including the pillar segments) in the tunnel having the complex irregular cross-sectional shape of FIG. 2 by the erector device 2 of the present example having the above-mentioned configuration will be described with reference to FIGS. Will be described in order.

1) The lower segment piece A1 carried into the center of the central tunnel A is
The segment is held by the R segment holding portion 9 and positioned at the assembly position (FIG. 3). During this time, the left erector arm 6L
Is held in a standby posture in which it is bent substantially at right angles by the shaft couplings 8a and 9a.

2) After changing the right erector arm 6R to the standby position in which it is bent substantially at right angles by the shaft couplings 8a and 9a,
The turning drum 5 is turned counterclockwise to cause the segment gripping portion 9 of the left erector arm 6L to grip the lower segment piece A1 carried into the central portion of the central tunnel A,
It is positioned at the assembly position (FIG. 4).

3) The left erector arm 6L is changed to the standby position, the revolving drum 5 is revolved in the clockwise direction, and the Y-shaped segment piece D1 is grasped by the segment grasping portion 9 of the right erector arm 6R and positioned at the assembly position. (FIG. 5).

4) The Y-shaped segment piece D2 is held by the segment holding portion 9 of the right erector arm 6R while the left erector arm 6L is held in the standby position, and then the turning drum 5 is turned counterclockwise. , Position it in the assembly position (Fig. 6).

5) With the revolving drum 5 stopped near the segment piece receiving position, the segment gripping portion 9 of the left erector arm 6L grips the segment piece A2 of the left side tunnel C and positions it at the assembly position. Subsequently, the segment gripping portion 9 of the right erector arm 6R grips the segment piece A3 of the right side tunnel B and positions it at the assembly position (FIG. 7). Note that while one of the erector arms 6L (6R) is performing the assembling work, the other erector arm 6R (6L) is held in the standby posture.

6) With the revolving drum 5 stopped near the segment piece receiving position, the segment gripping portion 9 of the left erector arm 6L grips the segment piece A4 of the left side tunnel C and positions it at the assembly position. Subsequently, the segment piece A4 of the right tunnel B is gripped by the segment gripper 9 of the right erector arm 6R, and is positioned at the assembly position. It should be noted that while the one erector arm 6L (6R) is performing the assembly work, the other erector arm 6R (6L) is held in the standby posture (FIG. 8).

7) Rotate the rotating drum 5 counterclockwise by approximately 180
で In the turned state, the segment piece A of the left tunnel C is attached to the segment gripper 9 of the right erector arm 6R.
3 is gripped and positioned at the assembly position. Subsequently, the segment gripping portion 9 of the left erector arm 6L is caused to grip the segment piece A2 of the right side tunnel B, and the segment piece A2 is positioned at the assembly position. Note that one of the erector arms 6L (6
While R) is performing the assembling work, the other erector arm 6R (6L) is held in the standby posture (FIG. 9).

8) Grasp the upper Y-shaped segment piece D2 of the left side tunnel C in the segment gripping portion 9 of the right erector arm 6R in a state where the swiveling drum 5 is swung clockwise approximately 90 ° to the segment piece receiving position. Let
Position in the assembly position. Then, the upper Y-shaped segment piece D1 of the right tunnel B is gripped by the segment grip portion 9 of the right erector arm 6R and positioned at the assembly position. The other erector arm 6L is held in the standby position (FIG. 10).

9) The turning drum 5 is turned counterclockwise, and the pillar segment CL of the left side tunnel C is used together with the pin (not shown) in the segment gripping portion 9 of the right erector arm 6R together with the grip assisting metal fitting 9d. Let it be gripped. Then, the segment grip 9 of the left erector arm 6L
, Push up the upper Y-shaped segment D2, and in this state,
The column segment CL gripped by the segment gripper 9 of the right erector arm 6R is positioned at the assembly position (FIG. 11).

10) The swivel drum 5 is swung clockwise to the column segment receiving position, and the left elector arm 6 is moved.
The column segment CR of the right side tunnel B is attached to the segment segment 9 of L together with the pin (not shown) and the auxiliary gripping fixture 9
Hold with d. Then, at the segment gripping portion 9 of the right erector arm 6R, the upper Y-shaped segment D1
Is pushed up, and in this state, the pillar segment CR gripped by the segment grip portion 9 of the left erector arm 6L is positioned at the assembly position (FIG. 12).

11) The left erector arm 6L is returned to the standby position, the revolving drum 5 is revolved, and the upper segment piece B1 is attached to the segment grip portion 9 of the right erector arm 6R.
To be positioned at the assembly position (FIG. 13).

12) The right erector arm 6R is returned to the standby position, the revolving drum 5 is revolved, and the upper segment piece B2 is attached to the segment grip portion 9 of the left erector arm 6L.
Is gripped and positioned at the assembly position (FIG. 14).

13) With the right erector arm 6R held in the standby posture, the key segment K is gripped by the segment gripper 9 of the left erector arm 6L, and is positioned at the assembly position (FIG. 15).

Through the above steps, the assembling operation of the segments in the tunnel having the composite irregular cross-sectional shape is completed.

By the way, in the steps 9) and 10), when the pillar segment C is inserted into the assembly position by the one erector arm 6, the upper Y-shaped segment D is pushed up by the other erector arm 6. I have. This is because the assembled upper Y-shaped segment D hangs down,
This is intended to facilitate the insertion by pushing up this to widen the vertical interval of the position where the column segment C is inserted. Since the pushing force F of the upper Y-shaped segment D is kept constant by the hydraulic pressure compensation circuit of each hydraulic cylinder 10-12 of the erector arm 6, the pushing position shift of the erector arm 6 due to the assembling and positioning of the supporting segment C is performed. Is absorbed.

In the assembly of the key segment K in the step 13), the key segment K is
-Tunnel radial direction (Y direction) between segments B2
It is necessary to forcibly push it in, and a considerably large pushing force F is required. This pushing force is obtained, for example, by holding the first arm 7 at a fixed position by the hydraulic cylinder 10 and rotating the second arm 8 clockwise by the extension movement of the hydraulic cylinder 11. Further, in each of the above-mentioned steps, only the main turning operation of the turning drum 5 will be described, and the respective arms 7 and 8 of the erector arm 6 will be described.
The description of each rotation operation of the segment gripper 9 has been omitted.

After the tunnel of the station portion is completed as described above, when returning to the original shield machine for circular cross section and excavating the line portion, the pair of erector arms 6L is also used.
6R can be used alternately, and the rotating drum 5 can be appropriately rotated to assemble a segment wall having a circular cross section.

An embodiment of the erector device of the present invention has been described above, but it can be carried out as follows.

A) The number of the erector arms 6 can be increased from one pair to two or more pairs as the diameter of the tunnel increases.

B) The number of arms constituting the erector arm 6 is standardized in the case of the above-mentioned first arm 7 and second arm 8, but one or three or more depending on the diameter of the tunnel. Can be increased or decreased.

C) As a device for rotating the arms 7 and 8 and the segment gripper 9, a hydraulic motor or an electric motor can be used in addition to the hydraulic cylinder.

D) As an elector device corresponding to claim 4, for example, a pair of erector arms 6L
An erector device (not shown) in which only one of R is pivotally attached to the slewing drum 5 and the other configurations are common to the above-described embodiment is conceivable. Revolving motion and articulated erector arm 6
By appropriately using the refracting operation of No. 1, the segment is formed in the entire range of the inner wall of the tunnel by the same procedure as the operation of assembling the segment (excluding the pillar segment C) in the tunnel having the complex irregular cross-sectional shape by the above-described erector device 2. Can be assembled.

[0053]

As is apparent from the above description, the erector device of the present invention has the following excellent effects.

(1) Assembling of segments in a compound cross-section tunnel having a central tunnel used for a triple-section compound circular cross-section tunnel part and tunnels adjacent to both sides of the central tunnel, etc. It can also be applied to the assembly of tunnel segments such as cross sections, horseshoe shapes, and rectangles, and is highly versatile.

(2) When assembling the pillar segments between the adjacent tunnels, the upper segment at the assembly position can be pushed up by the other erector arm, so that the pillar segments can be easily and reliably assembled.

(3) Since the paired erector arms are pivotally attached to the revolving drum so as to be deviated to one side from the center thereof,
The erector arms are less likely to interfere with each other, and the assembling work of the segments can be performed efficiently by minimizing the turning angle of the turning drum.

(4) In the erector device according to the second aspect, a heavy segment is provided by interposing a hydraulic cylinder across the revolving drum and the arm, the arm and the arm, or the segment and the grip portion. Since the moment acting on each arm when the piece is gripped can be shared by the hydraulic cylinder, the attitude of the arm with respect to the rotating drum and the attitude of the segment gripping portion with respect to the arm can be reliably held.

(5) In the erector device according to the third aspect, the structure of the erector arm can be simplified according to the sectional shape of the tunnel, and the moving range of the segment gripping portion can be further expanded.

(6) In the elector device according to the fourth aspect, unlike the case of the above-mentioned elector device, it is impossible to assemble the pillar segments, but at least one assembling of the segment pieces over the entire inner wall of the tunnel having the complex deformed cross section. This has the effect that it is possible with the erector arm of the machine, the structure can be greatly simplified, and the size and weight can be easily reduced.

[Brief description of the drawings]

FIG. 1 is a side cross-sectional view showing a shielded excavator for a compound deformed section type tunnel and an erector apparatus according to an embodiment of the present invention provided in a rear portion thereof.

FIG. 2 is a view taken along the line MM in FIG. 1, showing a state in which a segment gripper of each erector arm is turned to an upper fixed position.

FIG. 3 is an operation explanatory view corresponding to FIG. 2, showing a state in which a lower segment piece A1 of a central tunnel is positioned at an assembly position. FIGS. 3 to 15 sequentially explain an assembly procedure of segments of the entire tunnel. It is.

4 is an operation explanatory view corresponding to FIG. 2 and showing a state in which a lower segment piece A1 of a central tunnel is positioned at an assembly position.

FIG. 5 is an operation explanatory view corresponding to FIG. 2 and showing a state in which a Y-shaped segment piece D1 is positioned at an assembly position.

FIG. 6 is an operation explanatory diagram corresponding to FIG. 2 showing a state in which the Y-shaped segment piece D2 is positioned at the assembly position.

7 is an operation explanatory diagram corresponding to FIG. 2, showing a state in which the segment piece A2 of the left side tunnel C and the segment piece A3 of the right side tunnel B are respectively positioned at the assembly positions.

8 is an operation explanatory diagram corresponding to FIG. 2, showing a state in which the segment piece A4 of the left side tunnel C and the segment piece A4 of the right side tunnel B are respectively positioned at the assembly position.

9 is an operation explanatory diagram corresponding to FIG. 2, showing a state in which the segment piece A3 of the left side tunnel C and the segment piece A2 of the right side tunnel B are respectively positioned at the assembly position.

10 is an operation explanatory diagram corresponding to FIG. 2, showing a state in which the upper Y-shaped segment piece D2 of the left side tunnel C and the upper Y-shaped segment piece D1 of the right side tunnel B are respectively positioned at the assembly position.

FIG. 11: Upper Y-shaped segment D2 of left side tunnel C
FIG. 3 is an operation explanatory view corresponding to FIG. 2, showing a state in which a support member is pushed up to position a support column segment CL at an assembly position.

FIG. 12 is an upper Y-shaped segment D1 of the right side tunnel B.
FIG. 3 is an operation explanatory view corresponding to FIG. 2 and showing a state in which the support rod segment is pushed up and the support column segment CR is positioned at the assembly position.

FIG. 13 is an operation explanatory diagram corresponding to FIG. 2 showing a state in which the upper segment piece B1 is positioned at the assembly position.

FIG. 14 is an operation explanatory diagram corresponding to FIG. 2 showing a state in which the upper segment piece B2 is positioned at the assembly position.

FIG. 15 is an operation explanatory diagram corresponding to FIG. 2, showing a state in which the key segment piece K is gripped and positioned at the assembly position.

FIG. 16 is a cross-sectional side view showing a conventional erector device installed at the rear of a tunnel shield excavator having a circular cross section.

FIG. 17 is a view taken along the line NN of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shield excavator 2 Electa apparatus 5 Rotating drum 6 Electa arm 7.8 Arm 7a / 8a / 9a Shaft coupling 9 Segment gripper 10/11/12 Hydraulic cylinder

Claims (4)

(57) [Claims] 1. An erector device which is mounted on a rear portion of a shield machine and is used for segment assembly or column segment assembly of tunnels of various cross-sections such as circular, oval, horseshoe, multiple circle, and rectangle. Equipped at the rear of the shield machine so that it can swivel in the vertical plane orthogonal to the longitudinal direction of the tunnel at the center of the
At least a pair of articulated erector arms are provided symmetrically with respect to the revolving drum, and the erector arms are rotatable relative to each other in a vertical plane.
A first arm and a second arm having ends connected to each other;
The base ends of the first arms of the pair are the same from the center of the turning drum.
It is rotatably pivoted in a vertical plane at a position biased in one direction,
At the distal end of the second arm, the proximal end of the segment gripper
Part is pivotally mounted in a vertical plane, and the first arm, the second arm and the segment
The gripping portion is provided with each rotation drive device to rotate the swiveling drum and to move the erector arm.
Rotate each arm of the system to extend in the radial direction of the tunnel
The segment grip by any position in the tunnel.
An erector device characterized by being configured so that it can be moved to a room. 2. Each of the rotary drive devices comprises a rotary drum and a first arm, a first arm and a second arm, and a second arm.
Ri Do from the hydraulic cylinder is interposed respectively between the arm and the segment gripper, the first arm, the hydraulic cylinder the pivot drum side
Centered around the base end by expanding and contracting as a support fixing point
And the second arm rotates in a vertical plane.
The binder expands and contracts with the first arm side as a support fixing point.
Rotation around the base end,
Hydraulic cylinder supports and fixes the second arm side
Rotate around the base end by expanding and contracting as a point
Erector apparatus of claim 1, wherein that. 3. The first arm and the second arm of each of the erector arms are integrally connected to form one arm, or at least one of the first arm and the second arm is further divided into a plurality of arms. 3. The erector device according to claim 1 or 2, wherein the eclectic device is rotatably connected and a rotary drive device is interposed. 4. An erector device, which is mounted on a rear portion of a shield machine and is used for segment assembly of a tunnel having various sectional shapes such as a circular shape, an elliptical shape, a horseshoe shape, a multiple circular shape, and a rectangular shape. Equipped at the rear of the shield machine so that it can turn in a vertical plane orthogonal to the longitudinal direction of the tunnel.
At least one multi-joint erector arm is provided for the rotating drum, and the erector arms are rotatably movable within a vertical plane.
A first arm and a second arm connected to each other,
The base end of the arm is rotatable in the vertical plane on the rotating drum
And a segment at the tip of the second arm.
A base end portion of the grip portion is rotatably pivoted in a vertical plane, and the first arm, the second arm, and the segment.
Each of the grippers is provided with a rotation drive device for rotating the rotating drum, and
Rotate each arm of the system to extend in the radial direction of the tunnel
The segment grip by any position in the tunnel.
Characterized in that it is configured to be movable to a position .