JPH02221597A - Erector device for vertical type multiple shield excavator - Google Patents

Abstract

PURPOSE:To facilitate execution by equipping an erector of upper stage of the segment building erectors in two or more stages in an excavator with a pair of right and left independent hoist devices selecting either single or simultaneous operation. CONSTITUTION:A shield main unit 1 provides in its rear part setting up segment building erectors 7, 8 in two upper and lower stages equipped in an axial symmetrical position on the same turn ring 10 in the upper-stage erector 7 with a pair of right and left independent hoist devices 11, 11'. Next the erector provides between the hoist devices 11, 11' space 22 for carrying a segment in each hoist position. Subsequently, each hoist device 11, 11' is provided with a function holding, pressing, longitudinally moving the segment and preventing its deflection, being made possible to select single and simultaneous operations. When the long segment in both blade parts is in assembly, the hoist device 11 is singly operated hoisting the segment lowered in a predetermined position performing the assembly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an erector device for assembling segments of a vertical multiple shield excavator that forms a plurality of vertically connected tunnels each having a pseudo-circular cross section.

[Conventional technology]

A conventionally known multiple shield excavator excavates while assembling segments into a shape in which multiple rows of pseudo-circular parts are connected in the horizontal direction, and FIG. 18 shows the procedure for assembling the segments. The erectors 50, 50' arranged side by side inside the machine are all of the usual type with segments suspended at the center of suspension beams 52, 52' supported by left and right arms 51.5F on the swivel ring. Using an erector, assemble the arc-shaped A segment that divides the pseudo-circular part of each row and the almost V-shaped cross-section segment with a wing that protrudes on one side from the bottom to the top, and finally assemble the center B segment. The segments are assembled in the following order: the upper and lower segments are inserted between the upper and lower segments.

Vertical multiple shield tunnels are said to have an advantage over horizontal multiple shield tunnels in that they occupy a smaller tunnel width, but the construction technology is still under consideration and nothing has been published.

[Problem to be solved by the invention]

As shown in Fig. 17, the segments used in the vertical multi-shield tunnel include, for example, an arc-shaped A segment that divides the pseudo-circular part of each stage, a B segment that becomes the floorboard of the upper stage, and a crotch joint. Almost ■-shaped cross section +, Kt
It is considered that the segments form one lining ring.

Here, the long segment of both wing parts and the two short segments of both wing parts are swapped left and right every ring, and the joint positions of the A segment, + and Kz segments are alternately shifted, and they are arranged in a staggered manner in the tunnel axis direction. Make it so that B
At the end of the segment assembly process, the segments are
inserted between segments.

The assembly of such segment rings is carried out in two upper and lower sections installed at the rear of the shield excavator, corresponding to the pseudo-circular parts of each stage.
When performing Kl and Kz segmentation using a stage erector, due to its special segment shape, a normal type erector as shown in Fig. 18 cannot be used (details will be described later); therefore, an erector adapted to the segment shape cannot be used. The development of equipment has become a new challenge.

An object of the present invention is to provide an erector device for a vertical multiple shield tunneling machine that solves the above problems.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a vertical multiple shield excavator that excavates while assembling segments in a shape in which a plurality of stages of pseudo-circular parts are connected in the vertical direction, in which the vertical shield excavator excavates by assembling segments in a shape in which pseudo-circular parts are connected in multiple stages in the vertical direction. Among the multiple stages of segment assembly erectors installed in the machine, the upper stage erector holds segments at axially symmetrical positions on the same swivel ring.
Imposition.

Equipped with a pair of independent lifting devices on the left and right that have forward/backward movement and steady rest functions, a space is provided between the pair of lifting devices to carry the segment to each lifting position, and the space between the two lifting devices is Single operation.

The feature is that any of the simultaneous operations can be selected.

[Effect]

Segment (A) by the erector device of the present invention.

Figure 1 shows the assembly process for B, Kl, Kg).

The upper stage erector 7 is equipped with a pair of left and right independent lifting devices 11 and 11' at axially symmetrical positions across the segment loading space 22 on the same swivel ring.
．． 11' has the functions of gripping the segment, moving forward and backward by pushing, and steadying, and can be operated individually or simultaneously, so when assembling one segment on the long wing sections, As shown in FIGS. 1(C) to 1(f), using the space 22, the one-segment lifting socket 42, which has been carried in a horizontal position onto the board floor plate 34, is held by the grip 18 of one of the lifting devices 11. By grasping and operating the lifting device 11 independently, lift one segment until it is in a vertical position, and then lower it diagonally downward, without interfering with surrounding structures such as the existing lower A segment or the lower erector 8. , can be incorporated in place. In addition, when assembling the two short segments of both wings, the space 22 is
The two-segment lifting socket 43, which was carried in an oblique position onto the board floor plate 34 using K between A segment and lower A segment.

Segments can be inserted at near-horizontal angles.

K,, to! When reversing the left and right segments and assembling them, it is sufficient to operate the other lifting device 11' independently in the same way. In the normal type of erector shown in Fig. 18,
Since the segment is suspended in the center of the suspension beam 52.52', the long K of both wings.

It is unsuitable for lifting segments or inserting two short segments on both wings.

The assembly of the upper A segment can also be carried out by independent operation of the lifting device 11.11' as shown in FIGS. Figure 1 (1).

As shown in (m), the B segment can be lifted stably by simultaneous operation of both lifting devices 11 and 11'.

The lower erector 8 used for assembling the lower A segment may be of a conventional type.

〔Example〕

The illustrated embodiment will be described below.

FIG. 2 is a longitudinal cross-sectional view of the vertical double-shield excavator used in this embodiment, FIG. 3 is a left side view thereof, and FIG. 4 is an enlarged view of the erector section on the right side.

The cross section of the shield is similar to the segment assembly shape shown in FIG. 17, and consists of upper and lower pseudo-circular parts and a reverse arc-shaped joint part. On the front surface of the shield body 1, two rotary cutters 2 and 2' are arranged in the same plane and have the same center as the pseudo-circular part of each stage of the shield cross section. partially overlap and the cutter spokes are synchronously driven in opposite directions so as not to interfere with each other. Inside the machine, which is separated from the face by a bulkhead 3, there are a cutter drive motor 4, an earth removal screw conveyor 5,
A propulsion shield jack 6 and the like are installed, and two upper and lower segment assembly erectors 7.8 are installed at the rear of the shield body l.

Figure 5 is a side view of the upper erector 7, and Figure 6 is A of Figure 5.
-A sectional view, FIG. 7 is a BB sectional view in FIG. 5, and FIG. 8 is a view taken along arrow C in FIG. 4.

As shown in these figures, the upper stage erector 7 has a pair of arms 12, 12', one end of which is fixed at an axially symmetrical position of the above-mentioned turning ring 10, on the same turning ring lO driven by the turning motor 9. and a pair of lifting parts 14.1 guided by the guide part 13.13' of the arm 12.12' and movable in parallel in a direction perpendicular to the shield axis direction.
4', and the arm 12.12' is fixed to the lifting part 14.
．． 14' is extended and contracted in a direction perpendicular to the shield axis direction by jacks 15, 15' and each lifting part 14.
．． 14' through a guide lock 16°16', and a slider 17.17' that is movable back and forth in the shield axis direction.
and a slider 17.17' and a grip 18.1 fixed to each lifting part 14°14' and connected thereto.
A slide jack 19.19' that moves 8' back and forth,
A segment steady rest 20.20' arranged on the side surface of the lifting part 14.14', and a steady rest jack 21.21 fixed to the lifting part 14.14' to extend and retract the segment steady rest 20.20'. Equipped with a pair of left and right independent lifting devices 11 and 11',
A space 22 is provided between the pair of lifting devices 11.11' for carrying the segment to each lifting position, and each lifting device 11.11' is provided with a space 22 for grasping and pressing the segment, 9 forward and backward movement, and a steady rest. This feature allows both single and simultaneous operation to be selected.

9 is a side view of the lower erector 8, FIG. 10 is a sectional view taken along line DD in FIG. 9, and FIG. 11 is a view taken along arrow E in FIG.

As shown in these figures, the lower stage erector 8 has a pair of arms 24 and 24', one end of which is fixed at an axially symmetrical position on the swing ring 23 driven by a swing motor 9'. and an integral hanging beam 26 that is guided by the guide portion 25.25' of the arm 24.24' and movable in a direction perpendicular to the shield axis direction; The pressing that causes the expansion and contraction of the
6 via guide rods 28, 28', and is movable back and forth in the shield axis direction; and a slide jack, which is fixed to the hanging beam 26 and moves the slider 29 and the grip 30 coupled thereto back and forth. 31, and segment steady rests 3 disposed at both ends of the hanging beam 26.
2.32' and a steady rest jack 33.33' which is fixed to the suspension beam 26 and extends and retracts the segment steady rest R32.32'. , has a mechanism for pressing, forward/backward movement, and steady rest, and its hanging beam 2
In addition to the segment lifting grip 3o, 6 has
A pair of plate floor plate attachment parts 35 for holding the plate floor plate 34
．． 35' and a plate floor plate receiving part 36, 36' are provided.

12 is a plan view of the plate floor plate 34, FIG. 13 is a partially enlarged view thereof, FIG. 14 is a sectional view taken along line FF in FIG. 13, FIG. 15 is a sectional view taken along line GG in FIG. Figures (a) and (bl are a front view and a side view of a link 39, 39' for lifting a board floor board.

As shown in these figures, the plate floor plate 34 is made by framing a steel material into a rectangular shape, and is attached downwardly at a position corresponding to the plate floor plate attachment portion 35° 35' provided on the suspension beam 26 of the lower erector 8 mentioned above. A pair of protruding joint fittings 37.37' are fixed, and by inserting pins 38 into the pin holes at the bottom of the board mounting portion 35°35' and the bottom of the joint fittings 37.37', the board floor board 34 can be attached to the lower level. It can be held by the erector 8. Also, a pair of links 39, 39' are connected to the upper pin holes of the joint fittings 37, 37' with pins 40, and the pair of links 39, 39' are raised vertically, and each link is connected to the upper pin hole. A pair of grips 18.1 of the upper erector 7
The plate floor board 34 can also be held by the upper stage erector 7 by inserting the pin 41 into the bottle hole 8'. In addition, when the board floor board 34 is held by the lower erector 8,
By tilting the links 39° and 39' horizontally as shown by the two-dot chain lines in FIG. 14, these links can be retracted from the floor and will not become an obstacle when used as a segment storage area and a work floor for the upper erector 7. That's what I do.

The vertical dimension a of the plate floor plate 34 is made slightly smaller than the cutout dimension in FIG. 17 (the length of the B segment inserted between the stages at the end of the segment assembly process), and the lateral dimension is made almost equal to the segment width W. .

Next, the segment assembly procedure will be explained with reference to FIG. The segments are A and B as shown in FIG.

It consists of four types of segments, Kt and Kt, and by swapping the long segment on both wing parts and the short segment on both wing parts left and right for each ring, the joint position of the A segment and Kt segment is shifted. Staggered arrangement in the shield axis direction.

In FIG. 1, the hatched portions of the segments represent the assembled parts, and the unhatched parts represent the unassembled parts, and it is assumed that the assembly progresses from (al to al).

(al indicates a state in which the lower A segment is being assembled using the lower erector 8, and at this time, the plate floor plate 34 is held by the upper erector 7.

After the assembly of the lower stage A segment is completed, the plate floor plate 34 is transferred from the upper stage erector 7 to the lower stage erector 8, as shown in (b).

10) shows a state in which the plate floor board 34 held by the lower erector 8 is pushed up to a predetermined position between the stages, and the segment is carried onto it.

(d) and (El) are the left lifting device 1 of the upper erector
1 is operated independently to assemble the segments, and at the same time, the pressing of the lower erector 8 is performed by retracting the jack 27, 27' and rotating the arm 24, 24', during assembly. However, the floor plate 34 is moved to a position where it does not interfere with the segments.

([1] indicates the completed assembly of the segment.

(g) shows the state in which the plate floor board 34 has been returned to the predetermined position between the stages and the upper stage A segment has been carried in thereon.

(h) shows a state where the upper stage A segment is assembled by independently operating the right lifting device 11' of the upper stage erector 7, and at this time as well, the lower stage erector 8 is pressed by the jack 27.
27' is retracted to move the plate floor plate 34 to a position where it does not interfere with the A segment being assembled.

After completing the assembly of the upper tier A segment, return the plate floor plate 34 to the predetermined position between the tiers as shown in +1), and place it on top! Load the segment.

(J) and (k) show the state in which the Kt upper segment is assembled by independently operating the left lifting device 11 of the upper stage erector 7, and in accordance with this, the pressing of the lower stage erector 8 is performed by the jack retracting operation and the arm turning operation. I went there and am still assembling it!
The board floor board 34 is moved to a position where it does not interfere with the segments.

After the assembly of the K2 segment is completed, the plate floor plate 34 is returned to the predetermined position between the stages (as shown in 11), and the B segment is carried on top of it.

((2) is the left and right lifting device 11.1 of the upper erector 7.
1' is simultaneously operated to suspend the B segment, and when the lower erector 8 is pressed, the jacks 27 and 27' are retracted to complete the assembly of the B segment.

The segment assembly for one ring is thus completed, and after shield propulsion, the plate floor plate 34 is transferred from the lower erector 8 to the upper erector 7, and the next segment assembly is performed.

As is clear from FIG. 1, according to this embodiment, both wing parts are long, and the segments and both wing parts are short! The segments can be assembled into predetermined positions without interfering with existing segments or surrounding structures such as erectors, and subsequent segment rings can be easily assembled via the segments. In the process,
Segment steady rest 20.20' and 32.32'
are steady rest jacks 21, 21' and 33., respectively.
It is expanded and contracted by 33' and is used to steady the segment during assembly or to control its posture.

In the above embodiment, the pseudo-circular portion of the lining ring has two stages, upper and lower, but the present invention can be applied in the same manner even if the number of stages increases to three or four stages.

〔Effect of the invention〕

As described above, according to the present invention, the arc-shaped segments forming the pseudo-circular portion of each stage of the vertical multi-shield tunnel and the floor plate segments between the stages are replaced by the long key segment of approximately ■-shaped cross section of both wing parts and the key segment of the long approximately ■-shaped cross section of both wings. It is possible to assemble the lining ring, which is formed by joining via a short key segment having a substantially V-shaped cross section, using an erector, and construction can be facilitated.

[Brief explanation of the drawing]

Figures 1 (a) to +III) are segment assembly process diagrams in one embodiment of the present invention, Figure 2 is a vertical sectional view of the shield tunneling machine in this embodiment, Figure 3 is its left side view, and Figure 4 is an enlarged view of the erector part on the right side, FIG. 5 is a cutaway side view of the upper erector, FIG. 6 is a sectional view taken along line A-A in FIG. 5, FIG. The figure is a view taken in the direction of arrow C in FIG. 4, FIG. 9 is a cutaway side view of the lower erector, FIG. Fig. 12 is a plan view of the plate floor plate used for segment assembly, Fig. 13 is a partially enlarged view thereof, Fig. 14 is a sectional view taken along line FF in Fig. 13, and Fig. 15 is a sectional view taken along line GG in Fig. 13. , Figure 16(a)
, (b) is a front view and a side view of a link for lifting a plate floor board, FIG. 17 is a diagram showing the segment assembly shape of this embodiment, and FIG. 18 is a diagram of a segment assembly procedure in a conventional horizontal multiple shield tunnel. . 1...Shield body, 7...Upper erector, 8...
・Lower stage erector, 10... Upper stage erector turning ring,
11... Left side lifting device, 11'... Right side lifting device, 14.14'... Lifting part, 15.15'...
Pressing is jerky, 18.18'...Grip, 19.
19'...Slide jack, 20°20' segment steady rest device, 21.21'... Steady rest jack,
22...Segment loading space, A, B. K+, Kg...segment. Process (C) (d)

Claims (1)

[Claims] 1. In a vertical multiple shield excavator that excavates while assembling segments in a shape in which pseudo-circular parts are connected in multiple stages in the vertical direction, a multi-stage segment assembly installed in the machine corresponding to the plurality of stages of pseudo-circular parts. Among the erectors for use in the A vertical multiple shield excavation characterized in that a space is provided between the lifting devices for carrying the segments to each lifting position, and it is possible to select either independent operation or simultaneous operation of both lifting devices. Machine erector device.