JP5239929B2 - Segment stacking jig and segment installation method - Google Patents

Description

  The present invention relates to a stacking jig and a segment installation method for stacking and temporarily placing a plurality of segments with the inner surface side of the segments facing upward.

  When the segment 1 having an arc-shaped cross section constituting the annular cover body is temporarily placed in a factory, it is generally installed in a vertically placed state as shown in FIG. And when shipping the segment 1 installed in this way from the factory to the construction site, the orientation of the segment 1 is changed from the vertical position to the horizontal position so that the inner surface side is upward. It was handled in a stacked state.

  However, when stacking the segments horizontally, space is secured just by appropriately squeezing the square wood called segments between the segments. Since an excessive load is applied to the portion, the segment may be deformed or damaged over time.

  Accordingly, the present invention has been made in view of the conventional problems as described above, and a stacking jig that can be temporarily placed in a state where a number of segments are stacked without causing deformation or breakage of the segments, and An object of the present invention is to provide a method for installing a segment using the stacking jig.

The present invention is a stacking jig for stacking a plurality of segments having an arcuate cross section constituting an annular covering body on a plane with their inner surface facing upward,
A plurality of first rod-shaped members are arranged side by side, and are connected by a connecting material, and a first support member installed between the plane and the lowermost segment,
A plurality of second rod-shaped members are arranged side by side, and they are connected by a connecting material, and include a second support member installed between the segments adjacent vertically.
The upper surface of the first rod-shaped member has a shape along the outer surface of the segment or is deformable to the shape, and the upper surface and the lower surface of the second rod-shaped member are respectively on the outer surface and the inner surface of the segment. It has a shape along, or can be transformed into the shape.

  According to the present invention, the first support member is installed between the flat surface and the lowermost segment, and the second support member is installed between the upper and lower adjacent segments, so that the load of the segment is a plurality of rods. Since it is supported by the member, the load acting on the segment is dispersed and the load is not concentrated in one place, so that the segment can be prevented from being deformed or damaged.

  Further, the upper surface of the first bar-shaped member is formed or deformable along the outer surface of the segment, and the inner surface and outer surface of the second bar-shaped member are formed in a shape along the outer surface and inner surface of the segment, respectively. Or since it can deform | transform, it can contact | adhere to a segment. Therefore, even if it touches the segment, the segment is not damaged.

  Moreover, since the 1st rod-shaped member and the 2nd rod-shaped member are each connected with the connection material, a 1st support member and a some 2nd support member can be installed efficiently.

  In the present invention, if the lengths of the connecting members between the adjacent first rod-shaped members or second rod-shaped members are all the same, the adjacent first rod-shaped members or second rod-shaped members are the same. The interval between the members can be the same length. If the connecting material is a rope or a wire, the first support member and the second support member can be gathered by bending the rope or wire, so store the stacking jig. Space is small. Moreover, since a connection material is a rope or a wire, a 1st supporting member and a 2nd supporting member can be deformed along the curved shape of a plane and a segment. Further, if the connecting material is a steel bar having flexibility, the interval between the adjacent first bar-shaped members and the second bar-shaped members can be always kept constant. Further, since the connecting material is a bar that can be bent, the first support member and the second support member can be deformed along the curved shape of the plane and the segment.

Further, the present invention provides the above-mentioned segment installation method in which a plurality of segments having an arc-shaped cross section constituting an annular covering body are temporarily placed in a state where the inner surface side thereof is stacked on a plane.
A plurality of first rod-shaped members whose upper surface has a shape along the outer surface of the segment or are deformable to the shape, and are arranged side by side, and a first support member formed by connecting them with a connecting material; Installed on the plane,
After installing the lowermost segment on the first support member with its inner surface facing upward,
A plurality of second rod-shaped members whose upper surface and lower surface have shapes along the outer surface and inner surface of the segment, respectively, or are deformable to the shapes, are arranged side by side, and are connected by a connecting material. A step of installing two support members on the inner surface of the uppermost segment that has been installed so that the second rod-shaped members are positioned substantially directly above the first rod-shaped members, Repeating the step of placing the segment on the second support member at the uppermost stage with the inner surface facing upward until a predetermined number of the segments are stacked. .

  According to the present invention, the first support member is installed between the flat surface and the lowermost segment, and the second support member is installed between the upper and lower adjacent segments, so that the load of the segment is a plurality of rods. Since it is supported by the member, the load acting on the segment is dispersed and the load is not concentrated in one place. Furthermore, the position which supports a segment can be arrange | equalized in an up-down direction by installing a 2nd rod-shaped member substantially right above a 1st rod-shaped member. As a result, the position where each segment is supported and the loading position where the load of the upper segment acts coincide, so that no bending moment acts on the segment. Therefore, it is possible to prevent the segment from being deformed or damaged.

  According to the present invention, the segments can be temporarily placed in a state in which many segments are stacked without causing deformation or breakage of the segments.

It is a figure which shows the laminated structure of the segment which concerns on embodiment of this invention. It is an AA arrow line view of FIG. It is a perspective view which shows the 1st supporting member which concerns on this embodiment. It is a perspective view which shows the 2nd supporting member which concerns on this embodiment. It is a figure which shows the installation procedure of the segment which concerns on this embodiment. It is a figure which shows the installation procedure of the segment which concerns on this embodiment. It is a figure which shows the installation procedure of the segment which concerns on this embodiment. It is a figure which shows the conveyance procedure of the segment which concerns on this embodiment. It is a figure which shows the conveyance procedure of the segment which concerns on this embodiment. It is a figure which shows the conveyance procedure of the segment which concerns on this embodiment. It is a figure which shows the storage state of the segment in a factory.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a view showing a laminated structure 2 of segments 1 according to an embodiment of the present invention, and FIG. 2 is a view taken along the line AA in FIG.

As shown in FIGS. 1 and 2, the laminated structure 2 in which the segments 1 constituting the annular covering body 12 (not shown) are stacked has a plurality of arc-shaped segments stacked with the inner surface 1a facing upward. 1 and a stacking jig 3 installed between the segments 1 and the like so that the segments 1 stacked vertically are not in contact with each other.
The stacking jig 3 includes a first support member 4 installed between the ground and the lowermost segment 1, and a second support member 5 installed between the plurality of segments 1 stacked up and down. It consists of.

In the first support member 4, a plurality of first bar-like members 4 a are arranged side by side between the ground and the lowest segment 1, and they are connected by a connecting member 4 b.
In the second support member 5, a plurality of second rod-shaped members 5a are arranged side by side between the segments 1 stacked one above the other, and they are connected by a connecting member 5b. The second rod-shaped member 5a is installed between the stacked segments 1 at a position almost directly above the first rod-shaped member 4a.

  3 and 4 are perspective views of the first support member 4 and the second support member 5 according to this embodiment, respectively.

  As shown in FIGS. 3 and 4, the first rod member 4a and the second rod member 5a constituting the first support member 4 and the second support member 5 are, for example, wood and segment 1 It is produced so that it may adhere to. Specifically, the upper surface 4c of the first rod-like member 4a (shown in FIG. 3) is formed in the same arc shape as the curvature of the outer surface 1b of the segment 1. The second rod-shaped member 5a (shown in FIG. 4) is formed to have an arcuate cross section, and the curvatures of the outer surface 5d and the inner surface 5c are the same as the curvatures of the inner surface 1a and the outer surface 1b of the segment 1, respectively. It is formed in an arc shape.

  The connecting members 4b and 5b are made of, for example, a nylon rope, and each of the first rod-like member 4a and the second rod-like member 5a is connected, for example, five pieces each. The lengths of the connecting members 4b and 5b are arranged such that the central bar-shaped member 5A of the connected second bar-shaped members 5a is located directly above the central bar-shaped member 4A of the connected first bar-shaped members 4a. Then, all the 2nd rod-shaped members 5a are adjusted so that it may each be arrange | positioned substantially right above the 1st rod-shaped member 4a, for example, all are arrange | equalized with the same length.

Below, the installation method of the segment 1 which concerns on this embodiment is demonstrated according to a construction procedure.
5-7 is a figure which shows the installation procedure of the segment 1 which concerns on this embodiment.

First, as shown in FIG. 5, the first support member 4 is installed on the ground. Then, the segment 1 is installed on the first support member 4 with the inner surface 1a facing upward. At this time, the segment 1 is installed so that the center of the segment 1 is substantially right above the first rod-shaped member 4A.
Next, as shown in FIG. 6, the second support member 5 is installed on the inner surface 1 a of the segment 1. At this time, the second rod-shaped member 5A is installed so as to be substantially directly above the first rod-shaped member 4A. Thereby, all the 2nd rod-shaped members 5a are each arrange | positioned substantially right above the 1st rod-shaped member 4a.
Next, as shown in FIG. 7, a new segment 1 is installed on the second support member 5.
Then, the second support member 5 is installed on the inner surface 1a of the segment 1, and a predetermined number of segments 1 are stacked by repeating the operation of installing a new segment 1 thereon.

Below, the conveyance method of the segment 1 which concerns on this embodiment is demonstrated according to a construction procedure.
8-10 is a figure which shows the conveyance procedure of the segment 1 which concerns on this embodiment.

First, as shown in FIG. 8, the plurality of segments 1 are stacked on the ground temporary storage place 7 in accordance with the installation procedure described above.
Next, as shown in FIGS. 9 and 10, the crane 8 is lifted while the predetermined number of segments 1 are stacked, i.e., the second support member 5 is sandwiched between the segments 1, and is temporarily placed. The segment 1 is moved from 7 into the shaft 9 and stacked on the carriage 10 in the shaft 9. At this time, a new first support member 4 is installed on the carriage 10, and the segment 1 in a state of being stacked thereon is installed.
Finally, the truck 1 is transported from the shaft 9 to the construction site of the lining body 12 near the face in the tunnel 11 with the segment 1 being stacked.

  According to the stacking jig 3 in the present embodiment described above, the following effects can be obtained.

  (1) Since the first support member 4 and the second support member 5 are installed between the lowermost segment 1 and the ground and between the segments 1 stacked vertically, the segment 1 No contact with other segments 1 Further, since the load acting on the segment 1 is supported by the plurality of first rod-like members 4a and the second rod-like member 5a, the load acting on the segment 1 is dispersed and the load is not concentrated in one place. Furthermore, by installing the second rod-like member 5a substantially directly above the first rod-like member 4a, the position for supporting the segment 1 is aligned in the vertical direction. As a result, the position where each segment 1 is supported matches the loading position where the load of the upper segment 1 acts, so that no bending moment acts on the segment 1. Therefore, deformation and breakage of the segment 1 can be prevented.

  (2) Since the upper surface 4 c of the first rod-shaped member 4 a is formed in a shape along the outer surface 1 b of the segment 1, the first support member 4 can be brought into close contact with the segment 1. Further, the second rod-shaped member 5a is arc-shaped in cross section, and the outer surface 5d and the inner surface 5c have the same curvature as the inner surface 1a and the outer surface 1b of the segment 1, respectively. The support member 5 can be brought into close contact with the segment 1. That is, since they are in contact with each other, the segment 1 is not damaged even if the segment 1 is supported or sandwiched between the segments 1.

  (3) Since the first rod-like member 4a and the second rod-like member 5a are connected by the connecting members 4b and 5b, respectively, the first support member 4 and the second support member 5 can be installed efficiently. Moreover, since all the connection materials 4b and 5b are the same length, the space | interval of adjacent 1st rod-shaped members 4a and 2nd rod-shaped members 5a can be made the same.

  (4) Since the connecting members 4b and 5b are ropes, the first rod-like members 4a and the second rod-like members 5a can be gathered together by folding. Therefore, the space for storing the stacking jig 3 can be small. Further, the connecting members 4 b and 5 b can be deformed along the curved shape of the ground or the segment 1.

  In addition, in this embodiment, although the case where a nylon rope was used as connection material 4b, 5b was demonstrated, it is not limited to this, You may use steel bar thin to the extent which has flexibility.

  Moreover, in this embodiment, the 1st rod-shaped member 4a uses the wood whose upper surface 4c has a shape along the outer surface 1b of the segment 1, and the inner surface 5c and the outer surface 5d are used as the second rod-shaped member 5a. Although the case where the timber having the shape along the outer surface 1b and the inner surface 1a of the segment 1 is used has been described, the present invention is not limited to this, and the first rod-shaped member 4a and the second rod-shaped member 5a are You may comprise by flexible members, such as a rubber plate which can deform | transform so that the outer surface 1b of 1 and the inner surface 1a may be followed.

DESCRIPTION OF SYMBOLS 1 Segment 1a Inner surface 1b Outer surface 2 Laminated structure 3 Stacking jig 4 First support member 4a First rod-shaped member 4b Connecting material 4c Upper surface 5 Second supporting member 5a Second rod-shaped member 5b Connecting material 5c Inner surface 5d Outer surface 7 Temporary storage 8 Crane 9 Vertical shaft 10 Carriage 11 Tunnel 12 Covering body

Claims (3)

A stacking jig for stacking a plurality of segments having an arc-shaped cross section constituting an annular covering body on a plane with their inner surface facing upward,
A plurality of first rod-shaped members are arranged side by side, and are connected by a connecting material, and a first support member installed between the plane and the lowermost segment,
A plurality of second rod-shaped members are arranged side by side, and they are connected by a connecting material, and include a second support member installed between the segments adjacent vertically.
The upper surface of the first rod-shaped member has a shape along the outer surface of the segment or is deformable to the shape, and the upper surface and the lower surface of the second rod-shaped member are respectively on the outer surface and the inner surface of the segment. A jig for stacking segments, characterized by having a shape along or deformable to the shape.   2. The stacking jig according to claim 1, wherein the lengths of the connecting members between the adjacent first rod-shaped members or second rod-shaped members are all the same. In the method for installing the segment, the plurality of segments having an arcuate cross section constituting the annular covering body are temporarily placed in a state where the inner surface side thereof is directed upward and stacked on a plane.
A plurality of first rod-shaped members whose upper surface has a shape along the outer surface of the segment or are deformable to the shape, and are arranged side by side, and a first support member formed by connecting them with a connecting material; Installed on the plane,
After installing the lowermost segment on the first support member with its inner surface facing upward,
A plurality of second rod-shaped members whose upper surface and lower surface have shapes along the outer surface and inner surface of the segment, respectively, or are deformable to the shapes, are arranged side by side, and are connected by a connecting material. A step of installing two support members on the inner surface of the uppermost segment that has been installed so that the second rod-shaped members are positioned substantially directly above the first rod-shaped members, Repeating the step of placing the segment on the second support member at the uppermost stage with the inner surface facing upward until a predetermined number of the segments are stacked. How to install the segment.

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