Transport device and transport method

Abstract

An object of the present invention is to solve the problems of the prior art, that is, to provide a conveying device and a conveying method capable of loading and conveying demolition members to a cart without relying on manpower even in a shield tunnel TN having a small cross section.SOLUTION: A conveying device of the present invention is a device for conveying a disassembled member, and includes a portal structure, a conveying carriage, a main beam member, and a suspension jig. The first support column of the portal structure is placed on the removal rail, and the second support column is supported by the conveyance carriage. As a result, the portal structure moves in the tunnel axis direction. It is possible to load the disassembled member lifted by the lifting jig on the transport vehicle, release the support of the second column by the transport vehicle, and then transport the disassembled member by the transport vehicle.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to the removal of rail equipment used when constructing a tunnel (hereinafter simply referred to as a "shield tunnel") using the shield method, and more specifically to a transport device that can lift a portion of the dismantled rail equipment (hereinafter referred to as a "dismantled component"), even in the case of a narrow, small-section shield tunnel, load it onto a cart, and transport it as is, as well as a method of transporting the dismantled component using this device. [Background technology]

[0002] The shield tunneling method is a construction method for constructing underground railway tunnels, road tunnels, tunnels for water and sewerage, utility conduits, and tunnels for power and communications by digging underground with a shield machine while stabilizing the tunnel face and lining it with segments. As it is a non-open cut construction method that can limit the impact on the aboveground environment, the shield tunneling method has tended to be used more frequently in recent years, and is being used to construct tunnels with larger cross sections, greater depths, and longer distances. On the other hand, there are also tunnels with an internal cross section of 3 to 10 m, such as tunnels for water channels and tunnels that house electric cables. 2 There is also high demand for small cross-section shield tunnels.

[0003] Figure 13 is a cross-sectional view that shows a schematic of a small-section shield tunnel TN under construction using conventional methods. As shown in this figure, when constructing a small-section shield tunnel TN using conventional methods, sleepers CR are installed so that they are aligned with the tunnel cross-section, and two rails (hereinafter referred to as "permanent rails RL") are laid on top of the sleepers CR. During construction, carts and work vehicles use the permanent rails RL to travel between the tunnel entrance and the tunnel face. Meanwhile, because it is necessary to secure a work passage for workers and supervisors to move inside the tunnel, in the small-section shield tunnel TN, the two permanent rails RL are laid in a position that is biased to either the left or right (the right side in the figure).

[0004] Once the shield machine reaches the planned position, i.e., once the segments have been installed along the entire line, the rail equipment (main rails RL, sleepers CR, etc.) used during the construction of the shield tunnel TN is gradually dismantled, and the dismantled parts are carried out of the tunnel. If the shield tunnel TN has a relatively large internal cross-section, the rail equipment can be dismantled using a lifting machine such as a boom crane, and the tunnel can be moved inside without any particular restrictions to transport the dismantled parts.

[0005] In contrast, the cross-sectional area of ​​the inner space is 3 to 10 m 2 It is extremely difficult to use a lifting machine for a small-section shield tunnel such as this. Therefore, in the past, workers manually dismantled the rail equipment and then transported the dismantled parts on carts or other equipment. Even if the length of the parts was small enough for workers to handle, they were extremely heavy (for example, permanent rails (RL) sometimes weighed more than 10 kg each, and sleepers (CR) sometimes weighed more than 70 kg each), placing a significant burden on the workers. Furthermore, the amount of work done per day depended on the workers' abilities, making it difficult to predict the work schedule.

[0006] Therefore, various techniques for dismantling rail equipment without using a crane have been proposed. For example, Patent Document 1 proposes a material removal method for dismantling rail equipment using a device in which a hoist crane is attached to a portal frame that travels on a traveling rail. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 7-102900 Summary of the Invention [Problem to be solved by the invention]

[0008] The technology disclosed in Patent Document 1 allows for the dismantling of rail equipment without the use of lifting equipment such as boom cranes. However, the technology in Patent Document 1 requires the installation of brackets on both the left and right sides of the tunnel, and the installation of rails on each of these brackets, and many brackets must be installed in the tunnel axial direction. Therefore, the installation and removal of these components requires a considerable amount of effort and time. Furthermore, running a portal frame on the brackets installed on the left and right sides requires a certain amount of internal cross-section, making it unrealistic to adopt this method in the small-section shield tunnel TN.

[0009] The object of the present invention is to solve the problems associated with the prior art, namely, to provide a transport device and a transport method that can load dismantled components onto a cart and transport them without relying on human power, even in the case of a small-section shield tunnel TN. [Means for solving the problem]

[0010] The present invention was made by focusing on the fact that a part of the gate-shaped structure to which the lifting jig is attached is supported by a cart that transports the dismantling parts, in other words, by using a cart that has the functions of both "supporting the gate-shaped structure" and "transporting the dismantling parts," and is an invention based on an unprecedented idea.

[0011] The transport device of the present invention transports "dismantled components" of rail equipment used to construct shield tunnels. The transport device includes a portal structure, a transport vehicle, a main beam, and a lifting jig. The portal structure includes a "first support pillar," a "second support pillar," and a "top beam" connected to the tops of the first and second support pillars. The transport vehicle is placed on two permanent rails and moves in the tunnel axis direction. The main beams are attached to two or more portal structures spaced apart in the tunnel axis direction, and the lifting jig is attached to the main beams so that it moves along them. The first support pillar is placed on a removal rail laid to the side of the two permanent rails, and the second support pillar is supported by the transport vehicle, allowing the portal structure to move in the tunnel axis direction together with the main beams. The dismantled member lifted by the lifting jig is then loaded onto the transporting platform, and the support of the second support column by the transporting platform is released, after which the dismantled member can be transported by the transporting platform.

[0012] The transport device of the present invention can also be one in which the main beam moves along the tunnel cross-sectional direction. In this case, the top beam is arranged in the tunnel cross-sectional direction, and the main beam is attached to the top beam so that it moves along the top beam. Then, the lifting jig that lifts the dismantling member can move in the tunnel cross-sectional direction together with the main beam.

[0013] The transport device of the present invention may further include a support jig. The support jig installed on the segment can be connected to a part of the portal structure. Therefore, when the support of the second support column by the transport vehicle is released, the portal structure can be supported by the support jig installed on the segment.

[0014] The transport device of the present invention may also be configured such that the second support column is detachably connected to the top beam.

[0015] The transport method of the present invention is a method for transporting dismantled members using the transport device of the present invention, and includes a rail laying process, a transport device installation process, a dismantled member loading process, and a dismantled member transporting process. In the rail laying process, a removal rail is laid next to two permanent rails. In the transport device installation process, the first support pillar is placed on the removal rail and the second support pillar is supported by a transport vehicle. In the dismantled member loading process, the dismantled members are lifted by a lifting jig and loaded onto the transport vehicle. In the dismantled member transporting process, the support of the second support pillar by the transport vehicle is released, and the dismantled members are transported by the transport vehicle.

[0016] The transport method of the present invention can also be a method further comprising a transport device installation and movement step, in which the transport device is moved after transporting a predetermined section of dismantled members, and a removal rail relocation step, in which the removal rail remaining after the transport device has moved is relocated in the direction of movement of the transport device. [Effects of the Invention]

[0017] The transport device and transport method of the present invention have the following advantages. (1) The number of manual handling of demolition materials, such as lifting and loading, is significantly reduced, thereby reducing the occurrence of industrial accidents. (2) Because lifting and loading can be performed using lifting equipment, it is possible to process fairly long demolition materials (for example, demolition materials over 80 meters long) in one operation. As a result, it is possible to clearly grasp the outlook for the process and also shorten the construction period. (3) Shield tunnels with large cross-sections, as well as tunnels with cross-sections of 3 to 10 m 2 It can also be suitably used for small cross-section shield tunnels such as [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a cross-sectional view showing a conveying device of the present invention installed in a shield tunnel with segments installed along the entire length. [Figure 2] FIG. 1 is a plan view showing a conveying device of the present invention installed in a shield tunnel with segments installed along the entire length. [Figure 3] FIG. 1 is a cross-sectional view schematically showing a conveying device according to the present invention. [Figure 4] FIG. 10 is a plan view showing a portal structure in which two support wheels are provided at the lower end of the first support pillar via a running beam. [Figure 5] FIG. 10 is a side view schematically showing a main beam member attached to the portal structure. [Figure 6] (a) is a cross-sectional view of the main beam material equipped with traverse means as viewed in the tunnel cross-section direction, and (b) is a cross-sectional view of the main beam material equipped with traverse means as viewed in the tunnel axis direction. [Figure 7] FIG. 2 is a front view schematically showing the electric chain hoist and the lifting jig including the hook. [Figure 8] FIG. 10 is a cross-sectional view schematically showing a transport device in which sleepers and permanent rails are loaded onto a transport vehicle. [Figure 9] FIG. 10 is a cross-sectional view schematically showing a transport device in which a gate-shaped structure is supported by a support jig. [Figure 10] FIG. 10 is a partial cross-sectional view showing a support jig including an eyebolt and a chain. [Figure 11] FIG. 1 is a flow chart showing the flow of main steps in a conveying method according to the present invention. [Figure 12] 1 is a step diagram showing main steps of a conveying method according to the present invention. [Figure 13] A cross-sectional view showing a small-section shield tunnel under construction using conventional methods. DETAILED DESCRIPTION OF THE INVENTION

[0019] An embodiment of the transport device and transport method of the present invention will be described with reference to the drawings.

[0020] 1.Overview Fig. 1 is a vertical cross-sectional view (a cross-sectional view cut along a vertical plane) showing a conveying device 100 of the present invention placed in a shield tunnel TN, and Fig. 2 is its plan view. During the construction of the shield tunnel TN (hereinafter referred to as "main construction"), "rail equipment" such as sleepers CR and permanent rails RL are laid, and bogies and work vehicles use this rail equipment to travel within the shield tunnel TN. Once segments SG have been installed along the entire line, the rail equipment is dismantled, and the dismantled members (hereinafter simply referred to as "dismantled members DP") are transported outside the tunnel.

[0021] The present invention is capable of transporting the dismantled members DP and is particularly suitable for use in small-section shield tunnels TN. While the present invention can also be used in shield tunnels TN with normal cross sections, the following explanation focuses on small-section shield tunnels TN. For convenience, the longitudinal direction of the shield tunnel TN (left-to-right in the figure) as shown in Figure 1 will be referred to as the "tunnel axis direction," the starting point of the construction work as the "port side," and the end point as the "reach side." As shown in Figure 2, the horizontal direction perpendicular to the tunnel axis direction (up-down in the figure) will be referred to as the "tunnel cross-sectional direction," and left and right in the tunnel cross-sectional direction refer to the direction toward the reach side.

[0022] 2.Transportation equipment First, the transport device 100 of the present invention will be described in detail. The transport method of the present invention is a method of transporting dismantled members DP using the transport device 100 of the present invention. Therefore, the transport device 100 of the present invention will be described first, and then the transport method of the present invention will be described.

[0023] As shown in FIGS. 1 and 2, the transport device 100 of the present invention includes a portal structure 110, a transport vehicle 120, a main beam 130, and a lifting jig 140. It can also include support jigs and removal rails, which will be described later. The portal structure 110 includes two support columns and a beam member (hereinafter referred to as the "top beam") located at the top of the columns, and these beam members are located at two or more locations (three locations in the figure) spaced apart in the tunnel axis direction. The main beam 130, which is aligned in the tunnel axis direction, is attached to the top beam at two or more locations (three locations in the figure), and the lifting jig 140 is attached to the main beam 130 so as to move in the tunnel axis direction. The transport vehicle 120 is placed on two permanent rails RL installed in the construction work, namely, the left permanent rail RL (hereinafter referred to as the "left permanent rail RLA") and the right permanent rail RL (hereinafter referred to as the "right permanent rail RLB"). As mentioned above, in a small-section shield tunnel TN, two permanent rails RL are laid in positions biased to either the left or right of the internal cross section, and for example, in Figure 2, the left permanent rail RLA and the right permanent rail RLB are laid in positions biased to the left. Therefore, the transport vehicle 120 is also placed biased to either the left or right (left side in the figure).

[0024] The rail equipment is transported while being gradually dismantled from the arrival side toward the portal side, or from the portal side toward the arrival side. For this reason, the transport device 100 is first installed on the arrival side or portal side of the shield tunnel TN. When installing the transport device 100, another rail (hereinafter referred to as the "removal rail 160") is laid beside the two permanent rails RL. When the two permanent rails RL are laid on the left side of the internal cross section, the removal rail 160 is laid to the right of them, and when the two permanent rails RL are laid on the right side, the removal rail 160 is laid to the left of them. In the example of FIG. 2, the two permanent rails RL are laid in a position shifted to the left, so the removal rail 160 is laid in a position close to the right side wall (segment SG).

[0025] One of the support pillars constituting the portal structure 110 (hereinafter referred to as the "first support pillar") is placed on a removal rail 160, and the other support pillar (hereinafter referred to as the "second support pillar") is supported on a transport vehicle 120. Wheels or the like are attached to the lower end of the first support pillar, allowing it to travel on the removal rail 160, and the transport vehicle 120 can also travel on the permanent rails RL using wheels or the like. Therefore, the portal structure 110 is movable in the tunnel axial direction, which means that the transport device 100 is also movable in the tunnel axial direction. Furthermore, the transport vehicle 120 can be separated from the transport device 100 and can move independently on the permanent rails RL in the tunnel axial direction. The transport vehicle 120 can be self-propelled by an on-board engine or motor, or can be towed by a towing vehicle TR as shown in Figures 1 and 2.

[0026] Below, each of the main elements constituting the transport device 100 of the present invention will be described in detail.

[0027] (gate type structure) FIG. 3 is a schematic diagram of a transport device 100 of the present invention, showing a vertical cross section seen in the tunnel axis direction. The portal structure 110 constituting the transport device 100 includes a first support column 111, a second support column 112, and a top beam 113, and has a portal shape when viewed from the front. More specifically, the first support column 111 and the second support column 112, which are oriented substantially vertically (including vertically), are arranged facing each other with a distance in the cross-sectional direction of the tunnel, and the top beam 113, which is oriented substantially horizontally (including horizontally), is connected to the tops of the first support column 111 and the second support column 112. While FIG. 3 shows diagonal members arranged between the top beam 113 and the first support column 111 or the second support column 112, forming so-called haunches, the top beam 113 may also be directly connected to the first support column 111, etc. 1 and 2, the gate structures 110 are arranged at two or more locations (three locations in the figure) at intervals in the tunnel axis direction.

[0028] As already explained, the first support pillar 111 is placed on the removal rail 160. For example, wheels (hereinafter referred to as "support wheels 114") are provided at the lower end of the first support pillar 111, and the first support pillar 111 (i.e., the portal structure 110) is configured to be able to run on the removal rail 160 along the tunnel axis direction. One support pillar wheel 114 may be provided at the lower end of the first support pillar 111, or two or more support pillar wheels 114 may be provided. For example, in FIG. 4, a running beam 115 is attached to the lower end of the first support pillar 111, and two support pillar wheels 114 are provided on this running beam 115 spaced apart in the tunnel axis direction.

[0029] On the other hand, the second support 112 is supported on the transporting carriage 120. However, as will be described later, the transporting carriage 120 is configured so that it can be separated and run after the support of the second support 112 is released. Therefore, the second support 112 may be configured to simply be placed on the transporting carriage 120, or may be configured to be fixed to the transporting carriage 120 so that it can be easily attached and detached.

[0030] (Transport vehicle) The transport vehicle 120 is capable of loading dismantling members DP and transporting them to the outside of the mine using the permanent rails RL. For this reason, the transport vehicle 120 is configured to be able to run on the permanent rails RL, and for example, the transport vehicle 120 shown in Figure 3 is provided with wheels at two locations, on the left and right (hereinafter referred to as "carriage wheels 121"), which are placed on the left permanent rail RLA and the right permanent rail RLB, respectively. Note that, as the transport vehicle 120 also has the function of supporting the second support pillar 112 as described above, a transport vehicle 120 is placed on each of the gate-shaped structures 110 placed in two or more locations.

[0031] (Main beam material) The main beam 130 is a beam member made of shaped steel such as an H-shaped steel, and as shown in Fig. 5, its axial direction is set in the tunnel axis direction, and it is attached to the top beams 113 of the portal structures 110 arranged in two or more locations (three locations in the figure). The main beam 130 should be attached so that it protrudes further toward the reach side than the portal structure 110 closest to the reach side, and so that it protrudes further toward the portal side than the portal structure 110 closest to the portal entrance. The main beam 130 can be fixed to the top beam 113 so as not to move, or it can be attached to the top beam 113 so that it can move in the tunnel cross-sectional direction, as shown in Fig. 6.

[0032] FIG. 6 is a schematic diagram of a main beam 130 equipped with a traverse mechanism 131. (a) is a vertical cross-sectional view taken along the tunnel cross-section, and (b) is a vertical cross-sectional view taken along the tunnel axis. The main beam 130 shown in this figure is positioned below the top beam 113, with the traverse mechanism 131 fixed to a portion of its upper surface (e.g., the upper flange). As shown in FIG. 6(a), the traverse mechanism 131 in this case has a casing that straddles the top beam 113 and a roller attached to the casing. The roller travels above the top beam 113 (e.g., the lower flange). Therefore, as shown in FIG. 6(b), the traverse mechanism 131 travels along the top beam 113 (i.e., in the tunnel cross-section), and the main beam 130 also moves in the tunnel cross-section. As long as the main beam 130 can move in the tunnel cross-section, it can be configured with various conventional specifications, not just the traverse mechanism 131 shown in FIG. 6. Furthermore, the traversing means 131 can be attached to all of the gate structures 110 (top beams 113) that the transport device 100 has, or can be attached to some of the gate structures 110.

[0033] (hanging jig) The lifting jig 140 can lift the dismantling member DP and lower it onto the loading platform of the transport vehicle 120. For example, as shown in FIG. 7, it can be configured to include an electric chain block 141 and a hook 142. The lifting jig 140 is attached to the main beam 130 so that it can move along the main beam 130 (i.e., in the tunnel axis direction). For example, the lifting jig 140 can be equipped with a traveling means 143 having a structure similar to that of the traverse means 131 (FIG. 6), and the rollers of the traveling means 143 can travel above the main beam 130 (e.g., on the lower flange), thereby moving the lifting jig 140 in the tunnel axis direction. In this case, various types of conventional traveling means 143 can be used as long as the lifting jig 140 can move in the tunnel axis direction. One or more lifting jig 140 can be attached to the main beam 130.

[0034] The hoisting jig 140 moves in the tunnel axial direction, lifts up the dismantling members DP, and then moves in the tunnel axial direction while keeping the dismantling members DP lifted, and suspends them onto the loading platform of the transport vehicle 120. Furthermore, when the main beam member 130 is equipped with a traversing means 131, the hoisting jig 140 can also move in the tunnel cross-sectional direction, as shown in Figure 6(b). In this case, the hoisting jig 140 can move in the tunnel axial direction and the tunnel cross-sectional direction, which is advantageous because it can hoist a wide range of dismantling members DP and suspend the dismantling members DP evenly onto the loading platform of the transport vehicle 120.

[0035] (Support jig) As explained so far, when the rail equipment is dismantled, the dismantled members DP are lifted by the lifting jig 140 and loaded onto the transport vehicle 120. For example, in FIG. 8, dismantled sleepers CR and permanent rails RL are loaded onto the transport vehicle 120. Then, when a sufficient number of dismantled members DP (sleepers CR, permanent rails RL, etc.) have been loaded onto the transport vehicle 120, the transport vehicle 120 moves toward the outside of the tunnel. At this time, the second support pillar 112 that had been supporting the transport vehicle 120 until then is removed from the transport vehicle 120, thereby separating the transport vehicle 120 from the portal structure 110.

[0036] When the transport vehicle 120, which has been separated from the gate structure 110, moves, the second support pillar 112 loses support, and the gate structure 110 becomes unstable. Therefore, as shown in Fig. 9, it is desirable to support the gate structure 110 with a support jig 150 before the transport vehicle 120 is separated. Note that in Fig. 9, the second support pillar 112 has been removed in order to reduce the support load on the support jig 150, that is, to reduce the weight of the gate structure 110. In this way, the second support pillar 112 can be configured to be detachably connected to the top beam 113, or can be configured to be connected so that it cannot be removed from the top beam 113.

[0037] The support jig 150 can be of various conventional specifications as long as it can support the portal structure 110. For example, the support jig 150 shown in Fig. 10 is configured to include an eyebolt 151 and a chain 152. The eyebolt 151 is fixed to a segment SG of the shield tunnel TN, and the chain 152 connected to the eyebolt 151 supports the portal structure 110 so as to lift it up. The eyebolt 151 may be fixed by utilizing an insert portion of the segment SG.

[0038] 3.Transportation method Next, the transport method of the present invention will be explained. The transport method of the present invention is a method of transporting dismantled members DP using the transport device 100 explained so far. Therefore, we will avoid overlapping explanations with those explained about the transport device 100 and will mainly explain the details unique to the transport method of the present invention. In other words, the details not described here are the same as those explained in "2. Transport Device."

[0039] The transportation method of the present invention will be described below with reference to Figures 11 and 12. Figure 11 is a flow chart showing the flow of the main steps of the transportation method of the present invention, and Figure 12 is a step diagram showing the flow of the main steps of the transportation method of the present invention. For convenience, an example will be described here in which the rail equipment is gradually dismantled from the arrival side toward the tunnel entrance.

[0040] When using the transport device 100 to transport dismantled members DP, first, as shown in FIG. 12(a), removal rails 160 are laid beside the permanent rails RL (Step 201 in FIG. 11). At this time, permanent rails RL of a predetermined length are laid in a section on the arrival side so as to be connected in the tunnel axis direction, that is, multiple permanent rails RL are lined up in the tunnel axis direction. It is also advisable to lay the removal rails 160 only in a section slightly longer than the entire length of the transport device 100 (length in the tunnel axis direction). More specifically, the removal rails 160 are laid in the planned placement section of the transport device 100, and one or more permanent rails RL are also laid on the tunnel entrance side.

[0041] After the removal rails 160 have been laid, as shown in FIG. 12(b), the transport vehicle 120 is placed on the left permanent rail RLA and the right permanent rail RLB, and the first support 111 is placed on the removal rail 160, and the second support 112 is supported by the transport vehicle 120, thereby installing the transport device 100 (Step 202 in FIG. 11). At this time, the completed transport device 100 (i.e., the transport device 100 in which the main beams 130 are attached to multiple gate-shaped structures 110) can be installed all at once, or the transport device 100 can be installed while being assembled. For example, the transport vehicle 120 and the gate-shaped structures 110 are placed at two or more planned locations, and the main beams 130 are attached to the top beams 113 of each of the gate-shaped structures 110 on site, and the lifting jig 140 is attached to the main beams 130.

[0042] Once the transport device 100 is installed, the rail equipment is dismantled in order from the arrival side. Once a certain amount of the rail equipment has been dismantled, the dismantled sleepers CR and permanent rails RL are loaded onto the transport vehicle 120, as shown in FIG. 12(c) (Step 203 in FIG. 11). Then, once a sufficient number of dismantled members DP (such as sleepers CR and permanent rails RL) have been loaded onto the transport vehicle 120, the support jig 150 supports the portal structure 110 as shown in FIG. 12(d) (Step 204 in FIG. 11), and the transport vehicle 120 transports the dismantled members DP toward the outside of the mine (Step 205 in FIG. 11). At this time, of the multiple transport vehicles 120 that make up the transport device 100, the dismantled members DP are loaded and sent out in order from the transport vehicle 120 on the mine entrance side. Once all the transporting vehicles 120 have separated from the gate structure 110 and moved, they return to their predetermined positions on the gate structure 110, starting with the transporting vehicle 120 on the arrival side (Step 206 in FIG. 11), and once again support the second support column 112.

[0043] The process of loading the dismantling members DP onto the transport vehicle 120 and transporting them is repeated until the rail equipment of the predetermined section is dismantled (No in Step 207 in FIG. 11). On the other hand, once the rail equipment of the predetermined section has been dismantled (Yes in Step 207 in FIG. 11), the transport device 100 is then moved toward the mine entrance (Step 209 in FIG. 11). Then, the removal rails 160 that were left on the arrival side after the transport device 100 moved are moved toward the mine entrance (in the direction of movement of the transport device 100) and laid (Step 210 in FIG. 11). In other words, the removal rails 160 required for the transport device 100 to move are always maintained in a state where they are laid on the mine entrance side.

[0044] A series of steps, such as loading the dismantling members DP (Step 203) to relocating the removal rails 160 (Step 210), are repeated until all the target rail equipment has been transported (No in Step 208 in FIG. 11). Then, once all the target rail equipment has been transported (Yes in Step 208 in FIG. 11), the transport device 100 is removed and other cleanup is carried out, completing the entire work. [Industrial Applicability]

[0045] The conveying device and conveying method of the present invention can be suitably used for small-section shield tunnels, such as tunnels for waterways and tunnels for accommodating electric cables. Furthermore, they can be applied not only to shield tunneling but also to open-cut tunneling methods when there are height restrictions for construction. Considering that the present invention can efficiently and safely construct social infrastructure, such as tunnel structures, even with small cross sections, it can be said to be an invention that can be used industrially and is also expected to make a significant contribution to society. [Explanation of symbols]

[0046] 100 Conveying device of the present invention 110 Gate structure (of conveying device) 111 (Gate structure) first support pillar 112 (Gate structure) Second support 113 (Gate structure) Top beam 114 (Gate structure) support wheel 115 (Gate structure) running beam 120 (Transportation equipment) transport cart 121 (Transport vehicle) Cart wheel 130 Main beam (of transport equipment) 131 (Main beam) traversal means 140 (Transportation equipment) lifting jig 141 Electric chain block (for lifting jigs) 142 (Hanging jig) hook 143 (Lifting jig) Traveling means 150 (Transportation equipment) support jig 151 (Support jig) eyebolt 152 (Support jig) chain 160 Removal rail (of transport equipment) CR sleeper DP demolition materials RL Permanent rail RLA Left-hand rail RLB Right-hand rail SG Segment TN Shield Tunnel TR tractor

Claims

1. A device for transporting dismantled components of rail equipment for shield tunnel construction, a portal structure including a first support column, a second support column, and a top beam member connected to the tops of the first support column and the second support column; a transport vehicle that is placed on two permanent rails included in the rail equipment and moves in the tunnel axis direction; Main beam members attached to two or more of the portal structures arranged apart in the tunnel axis direction; a lifting jig attached to the main beam material so as to move along the main beam material; The first support pillar is placed on a removal rail laid beside the two permanent rails, and the second support pillar is supported by the transport vehicle, so that the portal structure moves together with the main beam in the tunnel axial direction, The dismantled members lifted by the lifting jig are loaded onto the transport vehicle, and the support of the second support column by the transport vehicle is released, and the dismantled members can be transported by the transport vehicle. A conveying device characterized by:

2. The main beam is attached to the top beam so as to move along the top beam arranged in the cross-sectional direction of the tunnel, The lifting jig can move in the tunnel cross-sectional direction together with the main beam material while lifting the dismantling member, 2. The conveying device according to claim 1.

3. a support jig that can be installed on a segment that constitutes a shield tunnel and can be connected to a part of the portal structure; When the support of the second support column by the transport vehicle is released, the portal structure is supported by the support jig installed on the segment.

2. The conveying device according to claim 1.

4. The second support column is detachably connected to the top beam.

4. The conveying device according to claim 3.

5. A method for transporting dismantled components of a rail facility for constructing a shield tunnel using a transport device, The transport device includes a gate-shaped structure, a transport vehicle, a main beam, and a lifting jig, the portal structure includes a first support column, a second support column, and a top beam member connected to top portions of the first support column and the second support column; The transport vehicle is placed on two permanent rails included in the rail equipment and moves in the tunnel axial direction, The main beam member is attached to two or more of the portal structures arranged apart in the tunnel axis direction, The lifting jig is attached to the main beam member so as to move along the main beam member, a rail installation step of installing a removal rail beside the two permanent rails; a conveyance device installation step of placing the first support pillar on the removal rail and supporting the second support pillar on the conveyance platform; a dismantling member loading process of lifting the dismantling members by the lifting jig and loading the dismantling members onto the transport vehicle; and a dismantling member transporting step of releasing the support of the second support by the transporting vehicle and transporting the dismantling member by the transporting vehicle. A transport method characterized by:

6. a conveying device moving step of moving the conveying device after conveying the dismantled members for a predetermined distance; and a removal rail relocation step of relocating the removal rail remaining after the transport device has moved in the direction of movement of the transport device.

6. The method of claim 5.

Images