Segment handling system for underground structure, segment handling apparatus for underground structure, and construction method for underground structure

Abstract

To efficiently handle a segment for constructing an underground structure in a pit.SOLUTION: This segment handling system for the underground structure is composed of a construction machine body having an arm extending and contracting in the longitudinal direction and elevating and lowering in the vertical direction and an attachment installed on the tip of the arm. The attachment includes at least a segment mounting portion to be mounted to a segment for assembling an underground structure, connection means detachably attached to the segment mounting portion, tilt means connected to the connection means for adjusting an inclination angle of the segment held by mounting the connection means to the segment mounting portion, and rotation means for adjusting a rotation direction of the segment, and can efficiently perform construction positioning of the segment freely vertically, horizontally, and obliquely.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a segment handling system for underground structures that handles segments for constructing underground structures in excavated tunnels, a segment handling device for underground structures that is used as an attachment in the system, and a method for constructing underground structures. [Background technology]

[0002] When constructing underground structures, there is a risk of landslides occurring after the excavation of the tunnel, so a lining that covers the inside of the tunnel is quickly formed to ensure safety.In other words, underground structures are constructed by forming a lining inside the tunnel after excavation, which is made up of steel or concrete blocks (frames) called segments that are combined in a ring shape.

[0003] A known method of constructing underground structures involves, for example, assembling the segments into a ring shape by connecting the segments piece by piece circumferentially along the inner surface of the excavation hole behind the shield tunneling machine that is excavating the hole, and then advancing the shield tunneling machine, connecting new segments in a ring shape in the direction of the tunnel axis, thereby sequentially constructing underground structures within the hole (see, for example, Patent Document 1).

[0004] In addition, for short tunnels, guide rails are installed inside the tunnel, and the segments are assembled using temporary structures installed outside the tunnel, which are then slid to connect them inside the tunnel.In other words, it is also known to construct underground structures using the push method, in which temporary structures are assembled outside the tunnel, and the segments are assembled piece by piece and pushed into the excavated tunnel.

[0005] However, such conventional construction methods rely on manual labor for tasks such as transporting and lifting the segments and aligning (fine-tuning) the segments at the construction site, which makes constructing underground structures time-consuming and labor-intensive, resulting in poor work efficiency.

[0006] Moreover, road and railway tunnels are required by law to be equipped with emergency equipment, and multiple evacuation shafts must be installed at certain intervals to allow people to evacuate to safe locations in the event of an accident or disaster. Although these evacuation shafts are shorter in distance than road or railway tunnels, there are many of them, and the series of tasks required to manually construct underground structures for each evacuation shaft requires a lot of time and effort. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Publication No. 7-94796 (Prior Art) Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention has been made in view of the above-mentioned conventional circumstances, and has as its object to efficiently handle segments for constructing underground structures inside a tunnel. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, one aspect of the present invention is a segment handling system for underground structures, which is composed of a construction machine body having an arm that can extend and retract back and forth and move up and down, and an attachment attached to the tip of the arm, wherein the attachment is characterized by having at least a segment mounting portion that is attached to a segment for assembling the underground structure, a connection means that can be attached and detached to the segment mounting portion, a tilt means that is connected to the connection means and adjusts the inclination angle of the segment held by the connection means being attached to the segment mounting portion, and a rotation means that is connected to the connection means and adjusts the rotational direction of the segment held by the connection means being attached to the segment mounting portion.

[0010] In the above-described system, the connecting means, tilting means and rotating means are preferably remotely operable. It is also preferable that the above-mentioned system further comprises a monitoring means for photographing and displaying the construction and alignment portion of the segment.

[0011] Another aspect of the present invention is a segment handling device for underground structures, which is an attachment attached to the tip of an arm of a construction machine body that has an arm that can extend and retract back and forth and move up and down, and which is characterized by having at least a segment mounting portion that is attached to a segment for assembling an underground structure, a connecting means that can be attached and detached to the segment mounting portion, and a tilting means that is connected to the connecting means and adjusts the inclination angle of the segment held by attaching the connecting means to the segment mounting portion. In the above-described device, the connecting means is preferably hydraulic.

[0012] Another aspect of the present invention is a segment handling device for underground structures, which is an attachment attached to the tip of an arm of a construction machine body that has an arm that can extend and retract back and forth and move up and down, and which is characterized by having at least a segment mounting portion that is attached to a segment for assembling an underground structure, a connecting means that can be attached and detached to the segment mounting portion, and a rotation means that is connected to the connecting means and adjusts the rotational direction of the segment held by attaching the connecting means to the segment mounting portion. In the above-described device, the connecting means is preferably hydraulic.

[0013] Another aspect of the present invention is a segment handling device for underground structures, which is an attachment attached to the tip of an arm of a construction machine body having an arm that can extend and retract back and forth and move up and down, and which is characterized by having at least a segment mounting portion that is attached to a segment for assembling an underground structure, a connecting means that can be attached and detached to the segment mounting portion, and a tilt rotation means that is connected to the connecting means and adjusts the inclination angle and rotation direction of the segment held by attaching the connecting means to the segment mounting portion. In the above-described device, the connecting means is preferably hydraulic.

[0014] Furthermore, another aspect of the present invention is a method for constructing an underground structure inside a tunnel after excavation using the above-mentioned system, which is characterized by comprising at least the steps of attaching a segment mounting portion of an attachment to a segment inside the tunnel, attaching a connecting means of the attachment to the segment mounting portion and holding the segment, aligning the segment for construction inside the tunnel by adjusting the rotational direction of the segment using the rotation means of the attachment and / or adjusting the inclination angle of the segment using the tilt means of the attachment, installing the segment, and detaching the connecting means from the segment mounting portion and releasing the holding of the segment. [Effects of the Invention]

[0015] According to the present invention, by using an attachment attached to the tip of the arm of a construction machine body that has an arm that can extend and retract back and forth and move up and down, the series of tasks involved in constructing underground structures inside a tunnel can be mechanized, thereby reducing labor. In other words, the tasks previously performed, such as transporting and lifting the segments and aligning (fine-tuning) the segments at the construction site, can now be carried out continuously, efficiently, easily, and in a short amount of time without relying on personnel (manual work).

[0016] Therefore, the segments for constructing underground structures can be handled efficiently inside the tunnel. Moreover, since manual work is reduced, labor is reduced and the number of personnel can be reduced. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a side view showing an overall segment handling system for underground structures according to the present invention; [Figure 2] 1 is a perspective view showing a segment handling device for underground structures according to the present invention; [Figure 3] FIG. 3 is an exploded view illustrating the configuration of the segment handling device for underground structures shown in FIG. 2. [Figure 4] FIG. 4 is a schematic diagram illustrating attachment of a segment attachment portion to a segment. [Figure 5] 1A to 1C are schematic diagrams illustrating the attachment operation of the connecting means to the segment attachment portion, showing (A) a state before attachment, (B) a state before locking after attachment, and (C) a locked state after attachment. [Figure 6] FIG. 10 is a schematic diagram showing a holding state of the segments. [Figure 7] 1A and 1B are schematic diagrams illustrating the extension and contraction function of the arm, showing (A) a state before extension and (B) an extended state. [Figure 8] 1A and 1B are schematic diagrams illustrating the arm lifting function, showing a state before lifting and a state after lifting. [Figure 9] 1A and 1B are schematic diagrams illustrating the tilt rotation function, showing (A) the right side construction state, (B) the bottom side construction state, and (C) the left side construction state. [Figure 10] 1 is a schematic diagram illustrating the construction of an access tunnel using the segment handling system for underground structures according to the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an example of an embodiment of the segment handling system for underground structures, the segment handling device for underground structures, and the construction method for underground structures according to the present invention will be described with reference to the drawings. The embodiments described below are preferred examples of the present invention and are therefore subject to various technical limitations. However, the scope of the present invention is not limited to these embodiments unless otherwise specified in the following description.

[0019] As shown in Figure 1, the segment handling system for underground structures (hereinafter referred to as "underground structure construction machine") 10 in this embodiment is composed of a construction machine body 1 and an attachment 2 that is attached to the tip of an arm 12 provided on the construction machine body 1. This attachment 2 is detachable from the tip of the arm 12.

[0020] The construction machine body 1 is a self-propelled heavy work machine (vehicle-mounted construction machine) and is equipped with an arm 12 that can extend and retract back and forth and move up and down. The construction machine body 1 is also provided with a driver's seat 11 where an operator (driver) who operates the arm 12 and attachment 2 sits.

[0021] The construction machine body 1 can be, for example, a rear ultra-small swing excavator (SK-55) manufactured by Kobelco Construction Machinery Co., Ltd., with the bucket portion at the tip of the arm 12 removed. In other words, by replacing the bucket portion at the tip of the arm 12 with an attachment 2 described below, it can be made into an underground structure construction machine 10 of this embodiment.

[0022] The arm 12 has an extension function that allows it to slide back and forth, and an elevation function that allows it to slide up and down, allowing the alignment of the segment S held via the attachment 2.

[0023] In this embodiment, the upper side of the operator seated in the driver's seat 11 will be referred to as "upper", the lower side of the operator as "lower", the front side of the operator as "front", the rear side of the operator as "rear", the left side of the operator as "left", and the right side of the operator as "right".

[0024] In addition, the attachment 2 is a device (segment handling device for underground structures) used in a system that handles segments S for underground structures, and as shown in Figures 2 and 3, it is equipped with at least a segment mounting portion 3, a connection means 4, a tilt means 5, and a rotation means 6. That is, the attachment 2 is an accessory device that is detachably attached via the link 7 to the tip of the arm 12 that is provided on the construction machine body 1 in this embodiment as described above.

[0025] The segment mounting portion 3 is an adapter that is attached to a segment S for constructing an underground structure, and has the function of holding (grasping) the segment S in cooperation with the connection means 4.

[0026] As shown in FIG. 4, the segment mounting portion 3 includes a plate body 31, a pair of shaft support portions 32, 32, and two locking shafts 33, . The plate body 31 is flat and is attached to one surface of the segment S by abutting against it. The shaft support portions 32 are provided adjacent to a pair of opposing edges of the plate body 31 and stand upright, respectively, and are portions that support the two locking shafts 33 and 34 by bridging them between them. The locking shafts 33 and 34 are portions for connecting with the connecting means 4 .

[0027] This segment mounting portion 3 is fixed to the segment S by placing the plate body 31 portion in contact with one side of the segment S, and then inserting and tightening fasteners such as bolts 9 into multiple holes (not shown) provided near the peripheral edge of the plate body 31. Such a segment mounting portion 3 can be, for example, a coupler plate (product name: SW03) manufactured by Lehnhoff.

[0028] The connection means 4 is a device that can be attached and detached to the coupler plate (segment mounting portion) 3, and is connected by being engaged with the engagement shafts 33, 34 of the coupler plate 3, and has the function of holding (grasping) the segment S in cooperation with the coupler plate 3. Such a connecting means 4 can be, for example, a hydraulic quick coupler (product name: HS03DL) manufactured by Lehnhoff, which is hydraulically operated.

[0029] The hydraulic quick coupler (connecting means) 4 can quickly, safely and easily perform connection (attachment / detachment) with the coupler plate 3, thereby enabling efficient work. In other words, the hydraulic quick coupler 4 does not directly fix and hold the segment S at the tip of the arm 12 using a fastener such as a bolt, but rather enables the segment S to be held by simply connecting it to the coupler plate 3 which is attached to the segment S.

[0030] As shown in Figure 5, the hydraulic quick coupler 4 has two locking shafts 33, 34 provided on the coupler plate 3, and includes a claw 41 that is locked to one of the locking shafts 33 and a lock pin 42 that is locked to the other shaft 34.

[0031] Therefore, the coupler plate 3 and the hydraulic quick coupler 4 can be connected as shown in FIG. First, as shown in Figure 5(A), the claws 41 of the hydraulic quick coupler 4 are engaged with one of the locking shafts 33 of the coupler plate 3, and then, as shown in Figure 5(B), the opposite end face opposite to the end face on which the claws 41 are provided is positioned inside the other locking shaft 34. Then, the lock pin 42 is caused to protrude downward from the other locking shaft 34 .

[0032] As a result, the hydraulic quick coupler 4 is attached to the coupler plate 3, and the coupler plate 3 and the hydraulic quick coupler 4 are firmly connected. When attaching or detaching the hydraulic quick coupler 4 to or from the coupler plate 3, the above-described operations can be carried out in reverse order.

[0033] The tilting means 5 is a device for adjusting the tilt angle of the segment S (hereinafter referred to as a "tilting device"), and is connected to the hydraulic quick coupler 4 via a frame 51 as shown in FIG. That is, the tilting device 5 serves as a handling portion for aligning the segment S held by the hydraulic quick coupler 4 connecting with the coupler plate 3.

[0034] This tilting device 5 can be tilted left and right as shown by the block arrow in the circular balloon in FIG. Such a tilting device 5 can be, for example, the HKS Extra Tilt (product name: BVD160) which can be tilted 180° left and right.

[0035] The rotation means 6 is a device that adjusts the rotational direction of the segment S (hereinafter referred to as the “rotation device”), and is connected to the hydraulic quick coupler 4 via the tilting device 5 and the frame 51. That is, similar to the tilting device 5, the rotation device 6 serves as a handling portion for aligning the segment S held by the hydraulic quick coupler 4 connecting with the coupler plate 3.

[0036] This rotation device 6 can rotate in one direction, as shown by the block arrow in the circular balloon in FIG. Such a rotation device 6 can be, for example, a rotation device (product name: RB60) manufactured by HKS, which can rotate 360° left and right.

[0037] In this embodiment, the tilt angle adjustment and rotation direction adjustment are performed using a tiltrotator that employs a worm gear system. This tiltrotator can operate not only for tilt rotation, but also for rotation alone and tilt alone. The direction of tilt angle adjustment by the tilting device 5 and the direction of rotational orientation adjustment by the rotation device 6 are perpendicular to each other.

[0038] In this embodiment, the hydraulic quick coupler 4, tilting device 5, and rotation device 6 can all be remotely controlled together with the operation of the arm 12, as shown in FIG. That is, the operator OP can operate the device while seated in the driver's seat 11, or the operator OP can operate the extension and / or extension / retraction of the arm 12 and the adjustment of the tilt angle and / or rotation direction of the segment S from a position away from the driver's seat 11.

[0039] The arm 12 can be extended forward from the pre-extended state shown in Figure 7(A) to the state shown in Figure 7(B), and the extension and contraction in the forward and backward directions indicated by the thick arrows in Figure 7(B) are remotely controlled by an operator OP. In addition, the arm 12 can be raised upward from the pre-raised state shown in Figure 8(A) to the state shown in Figure 8(B), and the up and down movement indicated by the thick arrow in Figure 8(B) is remotely controlled by an operator OP.

[0040] In addition, after the hydraulic quick coupler 4 is aligned by operating the arm 12 (see Figures 5(A) and (B)), it can be remotely operated by, for example, pressing a button (not shown) to hydraulically protrude the lock pin 42 and engage and lock the other locking shaft 34 of the coupler plate 3 (see Figure 5(C)). Conversely, the hydraulic quick coupler 4 is remotely operated to retract the lock pin 42 by hydraulic pressure and release the lock on the other locking shaft 34 of the coupler plate 3.

[0041] The tilting device 5 and the rotation device 6 are remotely operated by an operator OP to hold the segment S and install it on the right side as shown in Figure 9(A), hold the segment S and install it on the bottom as shown in Figure 9(B), or hold the segment S and install it on the left side as shown in Figure 9(C).

[0042] In this way, by making it possible to operate the arm 12, as well as attaching the hydraulic quick coupler 4 to the coupler plate 3, adjusting the tilt angle of the segment S using the tilting device 5, and adjusting the rotation direction of the segment S using the rotation device 6 remotely operable either wired or wirelessly, construction work on the segment S can be carried out reliably even from a location far from the construction position.

[0043] Furthermore, while there is a risk of water leaks and landslides inside the mine where segments S have not yet been constructed, by remotely operating the machine from a location where segments S have already been constructed, work can be carried out while ensuring the safety of the operator OP.

[0044] Here, there are no particular limitations on the material of the segments S, and they may be either steel segments or concrete (RC) segments. Furthermore, there are no particular limitations on the shape or length of the segments S, and they may have any desired shape and size, such as a rectangular shape when viewed from the front, an L-shaped bent shape when viewed from the front, or a U-shaped bent shape when viewed from the front, and an underground structure can be constructed to fit the excavation shape of the pit by appropriately combining various pieces (divided segments).

[0045] Furthermore, in this embodiment, it is desirable to further provide a monitoring means (not shown) that photographs and displays the handling alignment portion of the segment S. The monitoring means may be, for example, an imaging unit (camera) provided near the tip of the arm 12 and a display unit (monitor) provided near the operator OP. In this way, by installing cameras and monitors, the handling alignment area can be enlarged and checked, allowing the machine to be operated safely while checking delicate alignment.

[0046] As an example of constructing an underground structure inside a tunnel after excavation using the underground structure construction machine 10 configured as described above, we will explain the case of installing a connecting tunnel that connects parallel tunnels (hereinafter referred to as ``main tunnels'').

[0047] The main tunnels are existing tunnels constructed, for example, by the shield tunneling method, and are arranged side by side at intervals. Specifically, as shown in Figure 10, the main tunnels T1 and T2 are constructed by joining multiple segments in the circumferential direction of the tunnel to form a lining for one ring, and then joining the next lining for the next ring to this lining in the axial direction of the tunnel to form the entire lining. In the main tunnels T1 and T2, for example, a departure entrance is formed in one main tunnel T1 for the up line, and an arrival entrance is formed in the other main tunnel T2 for the down line.

[0048] On the other hand, the connecting tunnel CT is a tunnel constructed in a different direction (for example, perpendicular to the tunnel axis direction) from the main tunnels T1 and T2, and is a cross tunnel connecting one main tunnel (departure tunnel) T1 with the other adjacent main tunnel (arrival tunnel) T2. In other words, the connecting tunnel CT is an underground structure constructed to connect the departure opening formed in one main tunnel (departure tunnel) T1 with the arrival opening formed in the other main tunnel (arrival tunnel) T2.

[0049] When constructing the connecting tunnel CT, mirror cutting is performed in advance to cut off the segments of the starting section, which will serve as the starting point, in one of the main tunnels T1, which will serve as the starting tunnel. In addition, a working machine such as a rear mini-swing shovel is used to excavate a predetermined distance from a starting point to a reaching point to form a tunnel. The cross-sectional shape of the tunnel can be rectangular, for example, and the excavated debris is transported outside the tunnel using a belt conveyor or the like. Before excavating from the starting point, ground improvement work will be carried out by injecting chemicals from the starting point in the area including the planned route for constructing the connecting tunnel CT.

[0050] Then, by replacing the bucket portion at the end of the arm of the work machine (rear ultra-small swing shovel) used to excavate the tunnel with the attachment 2 of this embodiment, it becomes an underground structure construction machine 10, and an underground structure is constructed.

[0051] In constructing an underground structure, as described above, first, the coupler plate 3 is fixedly attached to one surface of the segment S. In addition, a hydraulic quick coupler 4 is attached to the coupler plate 3 to hold the segment S. Subsequently, the tilt angle of the segment S is adjusted by the tilting device 5 and / or the rotation direction of the segment S is adjusted by the rotation device 6, thereby aligning the construction position of the segment S inside the tunnel.

[0052] Then, the segments S are joined circumferentially around the tunnel to form one ring of lining, and the next ring of lining is joined sequentially in the axial direction of the tunnel to sequentially construct the connecting tunnel CT as an underground structure. When the joining of the segments S is completed, the hydraulic quick coupler 4 is detached from the coupler plate 3 to release the holding of the segments S, and the coupler plate 3 is removed from the segments S.

[0053] Furthermore, once the formation of the lining body has been completed for the excavated portion of the tunnel, the attachment 2 at the tip of the arm 12 of the underground structure construction machine 10 is detached and returned to the attachment of the original excavation work machine (rear ultra-small swing shovel), and the tunnel excavation work is continued. By repeating this process of excavating the tunnel and forming the lining until it reaches the access point, a connecting tunnel CT is constructed as an underground structure.

[0054] In this way, in the underground structure construction machine 10 of this embodiment, not only can the front-to-back position of the segment S be adjusted by extending and retracting the arm 12 provided on the construction machine main body 1, and the up-and-down position of the segment S be adjusted by raising and lowering the arm 12, but it is also possible to adjust the tilt angle of the segment S using the tilting device 5 and the rotation direction of the segment S using the rotation device 6.

[0055] In other words, while holding the segment S using the attachment 2 attached to the tip of the arm 12 provided on the construction machine body 1, the construction position of the segment S can be freely adjusted forward / backward, up / down, left / right, and diagonally, so that after the tunnel is excavated, the series of construction tasks for the segment S can be efficiently mechanized and carried out on the spot (inside the tunnel). Moreover, since the construction position of the segment S can be adjusted without moving the construction machine body 1, accurate position adjustment is possible, and safety and workability are improved.

[0056] Furthermore, the underground structure construction machine 10 is not limited to the construction of underground structures such as road tunnels or subway tunnels, but can also be used efficiently to construct a large number of evacuation tunnels at a certain distance apart to connect main tunnels that have been shield excavated.

[0057] Furthermore, by using multiple coupler plates 3 in the underground structure construction machine 10, the work of attaching and removing the coupler plates 3 to the segments S, the work of attaching the hydraulic quick couplers 4 to the coupler plates 3, and the work of aligning the construction position of the segments S can be performed in parallel, allowing work to be carried out even more efficiently. [Industrial Applicability]

[0058] The present invention can be used in constructing segments in tunnels (main tunnels) for automobiles or railways, and is particularly suitable for constructing segments in small-diameter tunnels such as tunnel crossings for the inbound and outbound lines. [Explanation of symbols]

[0059] CT connecting shaft OP Operator S segment T1,T2 Main pit 1 Construction machinery body 2 Attachment (segment handling device for underground structures) 3 Coupler plate (segment mounting part) 4 Hydraulic quick coupler (connection means) 5 Tilting device 6 Rotation Device 7 Links 9 Fixtures (bolts) 10 Underground structure construction machine (segment handling system for underground structures) 11 Driver's seat 12 Arm 31 Plate body 32 Shaft support 33,34 Locking shaft 41 Nails 42 Lock pin 51 frames

Claims

1. A system for handling segments for constructing an underground structure, comprising: a construction machine body having an arm that can extend and retract back and forth and move up and down; an attachment attached to the tip of the arm; It consists of The attachment is a segment mounting portion that is attached to a segment for assembling an underground structure; a connecting means that is detachable from the segment mounting portion; a tilt means connected to the connecting means and configured to adjust the tilt angle of the segment held by the connecting means being attached to the segment mounting portion; a rotation means connected to the connecting means and configured to adjust the rotational orientation of the segment held by the connecting means being attached to the segment mounting portion; A segment handling system for underground structures, comprising at least:

2. 2. The segment handling system for underground structures according to claim 1, wherein the connecting means, the tilting means, and the rotating means are remotely operable.

3. 2. The segment handling system for underground structures according to claim 1, further comprising a monitoring means for photographing and displaying the construction alignment portion of the segment.

4. An attachment attached to the tip of an arm of a construction machine body having an arm that can extend and retract back and forth and move up and down, a segment mounting portion that is attached to a segment for assembling an underground structure; a connecting means that is detachable from the segment mounting portion; a tilt means connected to the connecting means and configured to adjust the tilt angle of the segment held by the connecting means being attached to the segment mounting portion; A segment handling device for underground structures, comprising at least:

5. An attachment attached to the tip of an arm of a construction machine body having an arm that can extend and retract back and forth and move up and down, a segment mounting portion that is attached to a segment for assembling an underground structure; a connecting means that is detachable from the segment mounting portion; a rotation means connected to the connecting means and configured to adjust the rotational orientation of the segment held by the connecting means being attached to the segment mounting portion; A segment handling device for underground structures, comprising at least:

6. An attachment attached to the tip of an arm of a construction machine body having an arm that can extend and retract back and forth and move up and down, a segment mounting portion that is attached to a segment for assembling an underground structure; a connecting means that is detachable from the segment mounting portion; a tilt rotation means connected to the connection means and configured to adjust the tilt angle and rotation direction of the segment held by the connection means being attached to the segment mounting portion; A segment handling device for underground structures, comprising at least:

7. 7. A segment handling device for underground structures according to claim 4, wherein the connecting means is hydraulic.

8. A method for constructing an underground structure in a hole after excavation using the segment handling system for an underground structure according to any one of claims 1 to 3, comprising: a step of attaching the segment mounting portion of the attachment to the segment inside the tunnel; a step of attaching the connecting means of the attachment to the segment mounting portion and holding the segment; a step of aligning the construction position of the segment in the tunnel by adjusting the rotational orientation of the segment using the rotation means provided on the attachment and / or adjusting the tilt angle of the segment using the tilt means provided on the attachment; installing the segments; a step of detaching the connecting means from the segment mounting portion to release the holding of the segment; An underground structure construction method comprising at least the following.

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