JP2001254600A - Air-tight material within tunnel developing/jointing process and its operation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem where a lot of air-tight materials are required to install air-tight materials of a specified width for an air-tight structure within a tunnel while the total length of overlapping parts of air-tight materials is very long, resulting in a lot of time and labor for jointing the overlapping parts. SOLUTION: At a cylindrical part in a tunnel T, air-tight materials S continuous in length direction of the tunnel are installed with the inside perimeter divided in circumferential direction into a plurality of sections. After the air- tight materials S are installed along the entire perimeter in the tunnel length direction, the overlapping parts J of the air-tight materials S are jointed together in length direction. Then, a integral air-tight material is installed on the inside surface of the tunnel end part, and the overlapping parts between the integral air-tight material at the end part and the air-tight material at the cylindrical part are jointed for an air-tight structure within the tunnel T.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel (referred to as "a hole having a cylindrical space of a predetermined length" in this specification).
The present invention relates to a method for extending and joining an airtight material to the inner surface of a tunnel in order to make an internal space of the airtight structure, and a construction apparatus therefor.

[0002]

2. Description of the Related Art In recent years, as the demand for electric power has increased,
Its consumption tends to be concentrated in specific seasons and times. Therefore, as a power generation facility for coping with such power consumption, a technique of storing high-pressure air using surplus power at night or the like and generating power using this high-pressure air during peak power consumption in the daytime has attracted attention. ing. In this technology, gas turbine power is generated by creating compressed air with surplus electricity during the night and holidays, storing it in an underground tunnel (storage facility), and taking out the compressed air during daytime peaks and burning it together with fuel. It is a kind of thermal power generation that will be used for power generation.

[0003] Since high-pressure air in this technique must be stored at, for example, about 80 kg / cm ² in a tunnel for storing compressed air for power generation, its internal space has an airtight structure capable of withstanding high pressure. There is a need. As a method of forming such a tunnel for storing compressed air, a method of forming a storage space having an airtight structure by assembling a lining plate on the inner surface of the tunnel and attaching an airtight material (for example, a “fiber reinforced rubber sheet”) to the inner surface is considered. There is.

FIGS. 22 (a) and 22 (b) are a perspective view and an enlarged sectional view of a corner showing a method of stretching the airtight material on the inner surface of the tunnel. As shown in FIG. 22 (a), as a method of extending an airtight material into a tunnel T having a cylindrical space, an airtight material V1 having a predetermined width (for example, 1 m width) is formed in the cylindrical portion. It is stretched in the longitudinal direction (axial direction), and its joints (hereinafter, referred to as “overlap portions”) are overlapped and joined (heat-fused). At the disk portions at both ends, a hermetic material V2 having a predetermined width is arranged in the width direction. Tension and join the overlapping parts at the ends,
As shown in FIG. 22 (b), there is a method in which an arc-shaped hermetic member V3 is stretched at a corner portion and its edges are joined to other hermetic members V1 and V2 to form an internal space having an hermetic structure.

[0005] Incidentally, as this kind of prior art, Japanese Unexamined Patent Publication No.
There is an invention described in Japanese Patent Application Laid-Open No. 0-115198, but this invention is to fix a waterproof sheet divided into a plurality of inner circumferential directions of a tunnel to a sprayed concrete surface while spreading the tunnel in the longitudinal direction of the tunnel. However, it is not possible to provide a method and an apparatus for making the inside of the tunnel an airtight space.

[0006]

However, in the method shown in FIG. 22, when the longitudinal direction of the tunnel extends to several tens of meters, a very large number of hermetic materials must be provided, and these many hermetic materials V1 are required. It takes a lot of time and effort to join the overlapping portions of the two. In particular, it is difficult to form an air-tight structure without joining a predetermined length (for example, several hundred mm) in the circumferential direction. The joining distance becomes very long, and it takes a lot of time and effort to join the joints.

In addition, the airtight material V2 at both ends of the tunnel
Also produces a plurality of overlapping parts in the width direction, so the work of joining the overlapping parts requires a great deal of time and labor, and
When the airtight material V3 is stretched at the corners after performing these joining, it is necessary to join the overlap portion of the airtight material V3, the airtight material V1 of the cylindrical portion, and the airtight material V2 of the end portion. The work is also difficult and requires a great deal of time and effort.

[0008] Therefore, there is a long-felt need for a construction method and apparatus that can reduce the time and labor required to form such an airtight tunnel, shorten the construction period, and reduce equipment costs.

[0009]

Therefore, in order to solve the above-mentioned problems, a joining method according to the present invention provides an air-tight seal that is divided into a plurality of inner circumferential portions in a circumferential direction and is continuous in a longitudinal direction of the tunnel. After the airtight material is stretched around the entire length of the tunnel, the overlapping portions of the airtight materials are joined in the longitudinal direction, and then the integrated airtight material is stretched on the inner surface of the end of the tunnel, and the integrated airtight material at the end is attached. And the overlapping portion of the cylinder and the airtight material is joined to form an airtight structure in the tunnel. If the inside of the tunnel has an airtight structure in this way, the airtight material can be efficiently spread over the entire surface of the tunnel, and the length of the overlapping portion of the airtight material can be shortened to perform an efficient joining operation. An airtight structure can be provided.

[0010] If the airtight material stretched over the tunnel tube portion is sequentially stretched to the upper portion, the side portion, and the lower portion of the tunnel, the work of spreading the airtight material can be performed sequentially and efficiently from above the tunnel.

Further, the inner circumference of the tunnel cylinder is divided into an even number in the circumferential direction, and an airtight material is stretched so that the overlapped portion is opposed to the center of the tunnel axis. If the opposing joining reaction forces are mutually received, the joining operation at the opposed position can be performed at the same time, and the pressing reaction force at the time of joining can be mutually received, whereby the operation can be speeded up and the apparatus can be simplified.

On the other hand, the hermetic material construction apparatus of the present invention has a construction apparatus main body which moves in the longitudinal direction of the tunnel, and has an axial center arranged in the construction apparatus main body in a direction perpendicular to the moving direction of the construction apparatus body. An airtight material, airtight material sticking means for feeding out the airtight material and stretching in the longitudinal direction of the inner surface of the tunnel, airtight material supporting means capable of supporting the airtight material in a state where the axis of the airtight material is inclined at a predetermined angle, and Guide means for guiding the hermetic material fed from the material support means to the inner surface of the tunnel at the predetermined angle. According to such a device, since the roll-shaped airtight material can be unwound while being tilted at a predetermined angle and stretched so as to be continuous in the longitudinal direction of the tunnel, the work of extending the airtight material onto the inner surface of the cylindrical tunnel Can be performed by one device.

[0013] Further, the construction apparatus main body, the construction apparatus main body,
An airtight material supporting body having an airtight material supporting means for supporting the airtight material, and an airtight material attaching body having an airtight material attaching means for applying an airtight material drawn out from the airtight material supporting body to the inner surface of the tunnel, If the airtight material support body and the airtight material sticking body are configured to be separable, the airtight material must be forcibly pasted.After the work on the upper and side parts is completed, the lower airtight material is only the airtight material support body. Can be stretched.

Further, a support member for feeding out the airtight material is provided in the airtight material supporting means, and the support member can be tilted from the radial direction of the tunnel to the longitudinal direction of the tunnel. In addition, while adjusting the feeding angle of the airtight material in accordance with the lower extension portion, the extension operation of the tunnel cylinder portion can be performed by one device.

Further, a joining device main body which moves in the longitudinal direction of the tunnel is provided, and a plurality of pressing members arranged radially and a plurality of airtight material overlapping portions are simultaneously joined to the joining device main body at end surfaces of the pressing members. If the joining member is provided so that the pressing reaction force of the joining member is received by the joining member arranged radially, the overlapping portion of the airtight material stretched in the longitudinal direction of the inner surface of the tunnel can be joined continuously. In addition to this, the reaction force at the time of joining can be received by another joining member. In addition, since a plurality of overlapping portions are joined at the same time, the joining operation can be performed efficiently.

Further, if the joining members are arranged so as to simultaneously join the overlapping portions of the airtight material facing the center of the tunnel axis, the overlapping portions in the longitudinal direction of the tunnel can be joined at the same time. Since the pressing reaction forces at the time are received by the joining members arranged opposite to each other and a strong structure is not required for receiving the reaction force, the operation can be speeded up and the apparatus can be simplified.

In addition, if the main body of the joining apparatus is composed of a movable carriage moving in the longitudinal direction of the tunnel and a work carriage moving in the longitudinal direction of the tunnel on the movable carriage, and a pressing member is provided on the work carriage. Since the operation of moving the entire apparatus in the longitudinal direction of the tunnel and the operation of moving the pressing member in the longitudinal direction of the tunnel can be performed independently, the joining operation of the hermetic material performed by accurately moving the work cart can be performed. The operation can be efficiently and stably performed by controlling the movement of the work carriage on the carriage.

Further, an end construction device truck that moves in the longitudinal direction of the tunnel and an end construction device main body that can turn on the carriage are provided, and the end construction device main body has an integral airtightness of the tunnel end. Airtight material sticking means for gripping the material and stretching it to the end of the tunnel, a plurality of pressing members for radially pressing the airtight material attached by the airtight material sticking means, and joining the airtight material at the end face of the pressing member By providing a joining member and receiving the pressing reaction force of the hermetic material with the radially arranged joining member, it is possible to efficiently attach the hermetic material at the end of the tunnel and join the overlap portion at the edge of the hermetic material. Can do well.

Further, if the joining members are arranged so as to simultaneously join the overlapping portions of the airtight material facing the center of the tunnel axis, the overlapping portions in the circumferential direction of the tunnel can be joined continuously, and The pressing reaction force at the time can be mutually received by the joining members arranged facing each other.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing an airtight material installation device according to a first embodiment of the present invention, FIG. 2 is a side view showing an airtight material support device of the airtight material installation device, and FIG. 3 is an airtight material support device. FIG. 4 is a plan view showing a state in which the airtight material is supported, as viewed in the direction of arrows AA in FIG. 1. The airtight material construction device according to the first embodiment is a device for extending the upper airtight material in the longitudinal direction of the inner surface of the tunnel.

As shown in FIG. 1, in the hermetic material construction apparatus M1 of this embodiment, the construction apparatus main body 1 moving in the longitudinal direction L of the tunnel T is composed of the hermetic material support main body 1A and the hermetic material sticking main body 1B. It is configured. The hermetic material supporting body 1A has hermetic material supporting means E for supporting the axis of the roll-shaped hermetic material S in a direction orthogonal to the tunnel axis direction. There is provided an airtight material attaching means F for applying the airtight material S drawn from the main body 1A to the inner surface of the tunnel T. The airtight material supporting means E includes a support member 2 for supporting the axis of the airtight material S wound in a roll shape in a direction orthogonal to the tunnel axis direction, and supporting the support member 2 substantially at the axis of the tunnel T. And a support shaft 3 that can be rotated in the circumferential direction. The hermetic material support main body 1A has wheels 4 at a lower portion so as to be movable along the inner surface of the tunnel T, and a frame-shaped frame 5 is provided at an upper portion thereof.

As shown in FIGS. 3 and 4, the support member 2 is composed of a support roller 2a inserted into the center from both ends of a cylindrical hermetic material S wound in a roll shape, and the support roller 2a. And a support leg 2b provided at the tip thereof.
b and the airtight material S from the frame 2c.
And a support arm 2d erected up to the vicinity of the axis center. The support shaft 3 is provided at the upper end of the support arm 2d, and is supported by the frame 5 of the airtight material support main body 1A.

Accordingly, the roll-shaped hermetic member S supported by the support member 2 is rotatably supported about the axis of the hermetic member S, and the entire support member 2 is circumferentially centered on the tunnel axis. It is rotatable. The support shaft 3 that supports the support member 2 is configured so that the support member 2 is rotated by a predetermined angle (in this embodiment, the support shaft 3 is configured to be rotatable to an upright state that is rotated by 90 °, but the circumferential direction of the hermetic material). (Differs depending on the divided configuration) and can be fixed by a fixing device (not shown).

As shown in FIG. 2, a support member 6 is provided in the extending direction of the airtight material S for guiding the airtight material S to be fed out. The support member 6 is configured to be tiltable in the tunnel axial direction. Have been. Rollers 6a and 6b for guiding the airtight material S are provided at the upper end of the support member 6, and are fed out between these rollers 6a and 6b. In this embodiment, the tilt angle α can be changed by changing the length of the link member 7 that connects the support member 6 and the support leg 2b.

As shown in FIG. 1, the airtight material attaching main body 1
B also has wheels 8 at the lower part so as to be able to move along the inner surface of the tunnel T, and a frame-shaped frame 9 is provided at the upper part. As shown in FIG. 1, the upper end of the frame 9 is provided with a guide roller 10 for guiding the sheet-shaped hermetic material S fed from the hermetic material support main body 1A along the inner surface of the tunnel. This guide roller 10
Is formed in an arc shape such that the airtight material S is along the inner surface of the tunnel, and is disposed in the circumferential direction so as to follow the arc of the inner surface of the tunnel T. Further, the frame 9 is provided with an airtight material pressing bar 11 for an operator W to press the airtight material S guided by the guide rollers 10 against the inner surface of the tunnel.

The sealing member pressing bar 11 is provided at its upper end with a pressing member 11a in contact with the sealing member S, and by pressing up the bar 11b, the pressing member 11a is pushed up in an arc around the axis of the guide roller 10. Things.

The adhesive is applied to the back surface of the airtight material S stretched in the tunnel T by this operation, and the worker W peels off the protective sheet on the frame 5 side when being unwound from the roll to expose the adhesive applied surface. (Not shown).

Further, the airtight material supporting main body 1A and the airtight material attaching main body 1B are connected by a connecting member 12, and by removing the connecting member 12, the main bodies 1A and 1B are configured to be separable. I have. In addition, these main bodies 1A and 1B may be integrally formed.

FIGS. 5A and 5B are views showing the expanded state of the side airtight material by the above-mentioned airtight material construction apparatus, wherein FIG.
(b) is a BB sectional view shown in (a). FIG. 6 is a plan view showing the airtight material construction device. As shown in the figure, when the airtight material S is spread on the side after the airtight material S is spread on the upper part of the tunnel T by the airtight material construction device M1 of FIG. 1, it is supported by the support legs 2b of the airtight material support body 1A. The entire support member 2 is rotated about the support shaft 3 thus set, and the support member 2 is fixed with the airtight material S in a vertical state. The hermetic material S fed out in this state is guided by the posture holding member 13 from above and below so as not to hang down due to its own weight, and is guided to the inner surface of the tunnel T in a vertical direction. In this example, the posture holding member 13 includes a guide member 13b that moves along the guide shaft 13a, and a holding member 13c that pulls up and down the arc-shaped airtight material S. The guide member 13b can be constituted by means such as "turn buckle".

Further, as shown in FIG. 5 (b), on the side of the airtight material attaching main body 1B, an airtight material pressing for adhering the vertically guided airtight material S to the inner surface of the tunnel T. A bar 11 is provided. The airtight material pressing bar 11 is similar to the airtight material pressing bar 11 shown in FIG.
3 presses the central part of the airtight material S guided up and down along the inner surface of the tunnel T, and is formed in a curved shape along the inner surface of the tunnel T. The airtight material S stretched on the side of the tunnel T in this manner is
The upper end thereof is stretched so as to have an overlapping portion J overlapping the end of the airtight material S stretched above the tunnel T. FIG.
As shown in the figure, a scaffold 14 for an operator for guiding the airtight material S is provided on the inner surface side of the tunnel of the airtight material support main body 1A.

When the airtight material S is to be spread on the inner surface of the tunnel opposite to the airtight material expansion side shown in FIG. 5A, the support member 2 is rotated in the opposite direction to move the airtight material S to the opposite side. The airtight material S is pressed against the inner surface of the tunnel T by the airtight material pressing bar 11 and stretched in the same manner as the operations shown in FIGS. The operation of spreading the airtight material S on the opposite surface of the tunnel is the same as that shown in FIGS. 5 and 6, and a detailed description thereof will be omitted.

FIGS. 7A and 7B are views showing a state in which the lower hermetic material is expanded by the above-described hermetic material construction device, wherein FIG.
(b) is a CC arrow view. As shown in the figure, when the airtight material S is extended below the tunnel T, the airtight material sticking main body 1 is used.
B (FIG. 1) is separated from the hermetic material support main body 1A to make only the hermetic material support main body 1A, the support member 6 is tilted backward (opposite to the advancing side), and a guide arm 15 is provided behind the hermetic material support main body 1A. Is provided. This guide arm 15
Are provided with a plurality of support rollers 15a for bending and supporting the airtight material S in an arc shape, and a guide member 16 for guiding both ends. The guide arm 15 causes the sheet-shaped airtight material S to follow the arc on the inner surface of the tunnel. The other configuration is the same as the configuration shown in FIG. 1 described above, and a detailed description thereof will be omitted.

FIG. 8 is a side view showing the joining of the hermetic material by the hermetic material application device according to the second embodiment of the present invention, and FIG. 9 is a drawing of the hermetic material application device, and FIG. ,
(b), (c) are schematic views showing the connecting portion of the pressing member of the device, FIG.
0 is a cross-sectional view showing a joint of the airtight material by the airtight material construction device. The airtight material construction device according to the second embodiment includes:
Joined (heat-fused) overlapping parts of airtight material (in this embodiment, “fiber reinforced rubber sheet” is used) spread on the inner surface of the tunnel
It is a device for performing.

As shown in FIGS. 8 and 9, this hermetic material application device M 2 is provided with wheels 17 in the longitudinal direction L of the tunnel T.
Is provided with a joining device main body 18 configured to be movable to
The joining device main body 18 is provided with a plurality of pressing members 19 arranged radially. In this embodiment, the joining device main body 18 is composed of a lower traveling carriage 18A and a sliding carriage 18B that can move in the longitudinal direction of the tunnel above the traveling carriage 18A.
9 are provided. A joining member 20 (a heat-sealing member) for joining the overlapping portion J of the hermetic material S stretched to the inner surface of the tunnel T by the hermetic material construction device M1 of the first embodiment described above is attached to the end surface of the pressing member 19. ) Is provided. The joining member 20 can be expanded and contracted in a radial direction by a cylinder 19 a provided inside the pressing member 19.

This joining member 20 is such that pressing members 19 provided with joining members 20 at both ends thereof are arranged adjacent to each other at a 90 ° angle so that two opposing overlapping portions J can be joined. is there. As in this embodiment, the airtight material S is divided into an even number (four in this example) evenly in the circumferential direction of the tunnel so that the overlapping portion J of the airtight material S faces the center of the tunnel axis. The pressing member 19 having the joining member 20 for joining the overlapping portion J of the hermetic material S to be formed is composed of an even number (four in this example) so that the overlapping portions J in the longitudinal direction of the tunnel at the same time (this example). Can be joined at four places at the same time). As shown in FIG. 9 (b), the arrangement of the pressing members 19 may be an integral type in which the adjacent pressing members 19 are integrally connected, as shown in FIG. 9 (c). 19 may be a separation type configured to be rotatable in the circumferential direction. In addition, since the pressing reaction force at the time of joining can be received by the joining members 20 arranged opposite to each other, a rigid structure for receiving the pressing reaction force is not required. Therefore, it is possible to inexpensively manufacture a device that can simultaneously join a plurality of overlapping portions J and greatly reduce the joining operation.

In this embodiment, the traveling carriage 18A for moving the entire apparatus and the sliding carriage 18B for moving the pressing member 19 are provided.
With the A fixed at a predetermined position, the joining operation can be performed while moving only the slide cart 18B to perform accurate positioning. Reference numeral 21 denotes a scaffold for the worker W to visually check and join the overlapping portions J of the airtight material S.

As shown in FIG. 10, when the overlapping portion J of the hermetic material S is joined by the pressing member 19, the hermetic material S previously applied to the inner surface of the tunnel T is overlapped with the hermetic material S applied later. In this state, the overlapping portion J is pressed with the backing plate 22 provided so that the overlapping portion J can be evenly pressed, and the overlapping portion J can be joined by heating in this state. Note that the contact plate 22 is not necessarily provided.

FIG. 11 is a side view showing an airtight material installation device according to a third embodiment of the present invention, FIG. 12 is a plan view of the airtight material installation device shown in FIG. 11, and FIG. FIG. 14 is a front view, and FIG. 14 is a rear view of the airtight material construction device.
The airtight material construction apparatus according to the third embodiment is an apparatus for attaching an airtight material to an end of a tunnel and joining an overlapped portion at the end.

As shown in FIG.
Is provided with an end joining device main body 24 that is configured to be movable in the longitudinal direction L of the tunnel T by wheels 23, and the end joining device main body 24 is a carriage 24 provided with wheels 23.
A and an apparatus main body 24B which is configured to be rotatable around a vertical axis above the carriage 24A. A guide wheel 25 provided on the upper surface of the carriage 24A, a guide portion 26 rotating on the outer periphery of the guide wheel 25 on the lower side of the device main body, and a self-weight of the device body 24 are provided between the device main body 24B and the carriage 24A. A supporting wheel 27 that rotates while being supported is provided. The guide portion 26 serves as a turntable V that can rotate the apparatus main body 24B by 180 ° above the carriage 24A. In the joining device main body 24, in the state shown in FIG. 11, an airtight material holding member 28 that holds the integrated airtight material U is provided on the left side, and a pressing member 29 that joins the edges of the airtight material S is provided on the right side. And the airtight material holding member 28
After the application, the device main body 24B is turned by the turntable V.
Is rotated by 180 °, and the end of the airtight material S can be joined at the same end by the pressing member 29.

The integrated airtight material U stretched by this embodiment is a disc-shaped end Ua of the entire tunnel end Ta.
And an edge portion Ub bent from the disc-shaped end portion Ua toward the tubular portion side is integrally formed with a U-shaped cross section,
What is integrally formed by a factory or the like is used.

The airtight material holding member 28 is provided with a holding member 28a for holding such an integrated airtight material S up and down. It is configured to hold a holding portion (not shown) formed in the first portion.

Further, a joining member 30 for joining the overlapped portion J of the hermetic material S is provided on the end face of the pressing member 29, as in the above-described second embodiment. With this joining member 30, the airtight material S stretched on the inner surface of the tunnel T by the above-described airtight material construction device M1 of the first embodiment, and the tunnel end Ta by the airtight material construction device M3 of the third embodiment. Overlap J with the periphery of the integrated airtight material U
Are joined. In the case of this pressing member 29 as well, the overlapping portion J of the hermetic material S is pressed by the joint member 30 provided so as to be opposed by the cylinder 29a provided inside, so that the pressing reaction force acting on these is received at the central portion. be able to. Further, in order to rotate and join the peripheral edge of the integral airtight material U by a predetermined angle, the entire pressing member is configured to be rotatable. Reference numeral 31 denotes a scaffold for an operator.

FIG. 15 is a perspective view of a tunnel showing an example of construction of an airtight material according to the present invention, and FIG. 16 is a longitudinal sectional view of the tunnel. As shown in the figure, the hermetic material S stretched by the hermetic material construction device M1 of the above-described first embodiment is stretched continuously to the upper portion, both side portions, and the lower portion continuously in the longitudinal direction of the tunnel T, and is stretched. The overlapped portion J of the airtight material S is joined by the airtight material construction device M2 of the second embodiment described above. And, at the end of the tunnel T, the third
After the integrated airtight material U is stretched by the airtight material installation device M3 in the embodiment, the edge is joined to the airtight material S in the longitudinal direction of the tunnel by the device M3. Thus, the space in the tunnel T is formed in an airtight structure.

FIGS. 17 (a), (b), and (c) are side views showing the work of spreading the upper airtight material by the airtight material installation device of the present invention, and FIGS. c) is a side view showing the work of expanding the end of the upper airtight material and the side airtight material by the airtight material construction device of the present invention, and FIGS. 19 (a), (b) and (c) show the airtight material of the present invention. FIG. 20 (a), (b), a side view showing the extension work of the end of the side airtight material by the construction device and the loading of the airtight material construction device for the joining operation.
(c) is a side view showing the joining operation of the hermetic material by the hermetic material application device of the present invention, and FIGS. 21 (a), (b) and (c) are end seal materials by the hermetic material application device of the present invention. It is a side view which shows the joining operation. Hereinafter, the method of applying the airtight material S will be described with reference to these drawings.

As shown in FIG. 17, the airtight material construction device M1 is carried in from one side of the tunnel T (in this example, the right side of the figure) (a), and is moved to the far end of the tunnel T by a pulling means such as a winch. Then, an airtight material S is stretched from the far end Ta to the upper surface of the tunnel (c). The movement of the airtight material construction device M1 at this time is performed by a pulling means such as a winch provided on the loading side Tb.

As shown in FIG. 18, when the upper airtight material S has been stretched to the loading side Tb (a), the airtight material S is raised by turning the support member 2 in the vertical direction (b), and the tunnel T
(C). The movement of the airtight material construction device M1 at this time is the same as that in FIG.

As shown in FIG. 19, an airtight material S is stretched on one side of the tunnel (a).
Is rotated in the opposite direction to set the airtight material S in the opposite direction, and again,
It is moved to the back side of the tunnel and the airtight material S is put on the other side (front side) (this operation is shown in FIGS. 18 (a), (b) and FIG. 19).
The figure is omitted because it is the same as (a)). Thereafter, the support member 2 is turned in the horizontal direction to bring the airtight material S into a horizontal state (b).
As shown in FIG. 7 described above, the airtight material attaching main body 1B is detached from the airtight material support main body 1A and carried out of the tunnel. An airtight material S is put on the lower surface of the tunnel T from the end toward the loading side (this operation is performed in the state of FIG. 7 in FIG. 17 (c)).
, FIG. 18 (a), and the illustration and description are omitted). Thus, the airtight material construction apparatus M1 in which the airtight material S is stretched in the longitudinal direction of the tunnel T is carried out of the tunnel T to the outside. Then, an airtight material construction device M2 for joining the overlapping portion J of the airtight material S stretched inside the tunnel T is carried into the inside of the tunnel T (c).

As shown in FIG. 20, the airtight material construction apparatus M2 carried in (a) is moved to the far end of the tunnel T by a pulling means such as a winch, and the inner surface of the tunnel T is moved from the far end Ta to the inner surface of the tunnel T. The overlapping portion J of the airtight material S is bonded. At this time,
A plurality of (four in this embodiment) overlapping portions J are present in the circumferential direction by the radially provided joining members 20 (FIG. 9).
(B), it is possible to greatly reduce the working time and the labor. And an airtight material construction device M2 in which the overlap portions J in the longitudinal direction are joined.
Is carried out from the loading side Tb of the tunnel T (c). The movement of the airtight material construction device at this time is performed by a pulling means such as a winch provided on the loading side Tb of the tunnel T. Three
Reference numeral 2 denotes a joining control unit.

As shown in FIG. 21, after joining the hermetic material S stretched in the longitudinal direction of the tunnel T, the hermetic material S is stretched at the end of the tunnel T and stretched in the longitudinal direction of the tunnel T. The end sealing device M3 for joining the sealing material S with the sealing material S is carried in (a), and moved to the inner side of the tunnel to stretch the integrated sealing material U to the tunnel end Ta (b). Then, the device main body 24B (FIG. 11) of the hermetic material application device M3 is inverted, and the peripheral edge of the hermetic material U and the existing hermetic material S are joined by the joining member 30 (c). Thereafter, the airtight material construction device M3 is moved to the loading side Tb of the tunnel T, and the integrated airtight material U is stretched by the same operation, and the peripheral end of the stretched airtight material S and the existing airtight material S are joined ( Illustration is omitted). The movement of the airtight material construction device M3 is also performed by a pulling means such as a winch (not shown). In this way, the airtight material construction device M3 in which the integrated airtight material U is stretched at both ends of the tunnel T is carried out from the loading side Tb of the tunnel T to the outside.

By performing the airtight material S on the entire inner surface of the tunnel in this manner, the work of making the space in the tunnel T an airtight structure is completed, so that it is possible to perform the work in a short time and to reduce the labor. Becomes possible.

The above embodiment is an embodiment, and various changes can be made without departing from the spirit of the present invention, and the present invention is not limited to the above embodiment.

[0052]

The present invention is embodied in the form described above and has the following effects.

The airtight material for forming the airtight structure inside the tunnel can be efficiently stretched on the inner surface, and the overlapping portions of the airtight materials can be efficiently joined to form the airtight structure. It is possible to greatly reduce the work time and labor for making the airtight structure.

[Brief description of the drawings]

FIG. 1 is a side view showing an expanded state of a side airtight material by an airtight material construction device according to a first embodiment of the present invention.

FIG. 2 is a side view showing an airtight material support device of the airtight material construction device shown in FIG.

FIG. 3 is a view of the airtight material supporting device shown in FIG.

FIG. 4 is a plan view showing a support state of the airtight material shown in FIG. 3;

FIGS. 5A and 5B are drawings showing a state in which a side airtight material is expanded by the airtight material construction device according to the first embodiment of the present invention, wherein FIG. 5A is a side view, and FIG. 5B is a BB cross section of FIG. FIG.

FIG. 6 is a plan view showing the airtight material construction device in the state shown in FIG.

FIGS. 7A and 7B are diagrams showing a state in which a lower airtight material is spread by the airtight material construction device according to the first embodiment of the present invention, wherein FIG. 7A is a side view and FIG.

FIG. 8 is a side view showing a state in which an airtight material is joined by an airtight material installation device according to a second embodiment of the present invention.

9 is a drawing of the airtight material installation device shown in FIG. 8, (a)
FIGS. 2A and 2B are front views, and FIGS. 2B and 2C are schematic views showing a pressing member connecting portion of the device.

FIG. 10 is a cross-sectional view showing a joint of an airtight material by the airtight material installation device shown in FIG.

FIG. 11 is a side view showing an airtight material construction device according to a third embodiment of the present invention.

FIG. 12 is a plan view of the airtight material construction device shown in FIG.

13 is a front view of the airtight material construction device shown in FIG.

14 is a rear view of the airtight material construction device shown in FIG.

FIG. 15 is a perspective view of a tunnel showing an example of construction of an airtight material according to the present invention.

16 is a longitudinal sectional view of the tunnel shown in FIG.

FIGS. 17 (a), (b) and (c) are side views showing the work of spreading the upper airtight material by the airtight material installation device of the present invention.

FIGS. 18 (a), (b), and (c) are side views showing the work of extending the end of the upper airtight material and the side airtight material by the airtight material installation device of the present invention.

FIGS. 19 (a), (b), and (c) are side views showing the expansion of the end of the side airtight material and the loading of the airtight material installation device for the joining operation by the airtight material installation device of the present invention. is there.

FIGS. 20 (a), (b), and (c) are side views showing a joining operation of an airtight material by the airtight material installation device of the present invention.

FIGS. 21 (a), (b), and (c) are side views showing a joining operation of an end airtight material by the airtight material installation device of the present invention.

FIGS. 22A and 22B are drawings of a tunnel showing a conventional airtight material spreading operation, in which FIG. 22A is a perspective view, and FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Construction apparatus main body 1A ... Airtight material support main body 1B ... Airtight material sticking main body 2 ... Support member 2a ... Support roller 2b ... Support leg 2c ... Frame 2d ... Support arm 3 ... Support shaft 4 ... Wheel 5 ... Frame 6 ... Support member 6a ... Roller 7 ... Link material 8 ... Wheel 9 ... Frame 10 ... Guide roller 11 ... Airtight material pressing bar 11a ... Pressing member 11b ... Bar 12 ... Connecting member 13 ... Position holding member 13a ... Guide shaft 13b ... Guide member 13c ... holding members 14, 21 ... worker scaffold 15 ... guide arm 16 ... guide member 17 ... wheels 18 ... joining device main body 18A ... traveling trolley 18B ... slide trolley 19 ... pressing member 19a ... cylinder 20 ... joining member 22 ... contact plate 23 ... wheels 24 ... end joining device main body 24A ... trolley 24B ... device main body 25 ... guide wheel 26 ... guide portion 27 ... support wheel 28 ... airtight material Holding member 28a ... Holding member 29 ... Pressing member 30 ... Joining member E ... Airtight material supporting means F ... Airtight material sticking means J ... Overlapping part L ... Longitudinal direction S ... Airtight material T ... Tunnel Ta ... Tunnel end Tb ... Loading Side U ... Integral airtight material Ua ... End Ub ... Edge V ... Turntable W ... Worker α ... Tilt angle M1, M2, M3 ... Airtight material construction device

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Koji Bando, Inventor 2-4-1 Hamamatsucho, Minato-ku, Tokyo Kawasaki Heavy Industries, Ltd. Tokyo Head Office (72) Inventor Kazuhiro Fukuda 1-2-2 Shibaura, Minato-ku, Tokyo No.3 Shimizu Corporation Tokyo Head Office (72) Inventor Yoshiyuki Ohara 1-3-2 Shibaura Minato-ku, Tokyo Shimizu Corporation Tokyo Head Office (72) Inventor Hiroyuki Chiba Kitaichijo Nishi 2 Chuo-ku Sapporo City Hokkaido Chome 1 Shimizu Corporation Hokkaido Branch F term (reference) 2D055 GB01 KB00

Claims (11)

[Claims] 1. An airtight material that divides the inner circumference into a plurality of pieces in the circumferential direction and extends continuously in the lengthwise direction of the tunnel is attached to a cylindrical portion in the tunnel,
After the airtight material is stretched around the entire length of the tunnel, the overlapped portions of the airtight materials are joined in the longitudinal direction, and then the integrated airtight material is spread on the inner surface of the end of the tunnel, and the integrated airtight material at the end and the cylindrical portion Airtight material expansion joining method that joins the overlapped parts with the airtight material to make the inside of the tunnel an airtight structure. 2. The method according to claim 1, wherein the airtight material stretched over the tunnel cylinder is stretched sequentially to the upper portion, the side portion, and the lower portion of the tunnel. 3. An inner circumference of the tunnel cylinder is divided into an even number in the circumferential direction, and an airtight material is stretched so that the overlapped portion is opposed to the center of the tunnel axis. 3. The method of claim 1 or 2, wherein mutually opposing joining reaction forces are received. 4. An airtight material having a construction apparatus main body moving in a longitudinal direction of a tunnel, an airtight member having an axial center arranged in a direction orthogonal to a moving direction of the construction apparatus body, and the airtight material being fed out. Sealing means extending in the longitudinal direction of the inner surface of the tunnel, air-tight material supporting means capable of supporting the axis of the air-tight material at a predetermined angle, and air-tight material fed from the air-tight material supporting means. An airtight material installation device provided with guide means for guiding the inside of the tunnel at the predetermined angle. 5. An airtight device comprising: an airtight material supporting body having an airtight material supporting means for supporting an airtight material; and an airtight material attaching means for stretching an airtight material drawn from the airtight material supporting body to an inner surface of a tunnel. 5. An airtight material installation apparatus according to claim 4, wherein said airtight material supporting body and said airtight material attaching body are configured to be separable. 6. The airtight material supporting means is provided with a support member for feeding out the airtight material, and the support member is configured to be tiltable in a tunnel longitudinal direction from a tunnel radial direction. Or the airtight material construction apparatus according to claim 5. 7. A joining device main body that moves in the longitudinal direction of a tunnel is provided, and a plurality of pressing members arranged radially and a plurality of airtight material overlapping portions are simultaneously joined to the joining device main body at end surfaces of the pressing members. An airtight material installation device, comprising: a joining member to be provided; and a pressing reaction force of the joining member is received by the joining members radially arranged. 8. The airtight material construction apparatus according to claim 7, wherein the joining members are arranged so as to be simultaneously joined so as to simultaneously join the overlapping portions of the airtight materials facing the center of the tunnel axis. 9. The joining apparatus main body is constituted by a movable carriage moving in the longitudinal direction of the tunnel and a work carriage moving in the longitudinal direction of the tunnel on the movable carriage, and a pressing member is provided on the work carriage. The airtight material construction device according to claim 7 or 8, wherein 10. An end construction device truck that moves in the longitudinal direction of a tunnel, and an end construction device main body that can be turned on the carriage, wherein the end construction device main body has an integral airtightness of a tunnel end. Airtight material sticking means for gripping the material and stretching it to the end of the tunnel, a plurality of pressing members for radially pressing the airtight material attached by the airtight material sticking means, and joining the airtight material at the end face of the pressing member An airtight material construction apparatus comprising a bonding member and a pressing reaction force of the airtight material received by the radially arranged bonding members. 11. The hermetic material application device according to claim 10, wherein the joining members are arranged so as to oppose each other so as to simultaneously join the overlapping portions of the hermetic materials facing the center of the tunnel axis.