Heavy load traverse method in tunnel pit and heavy load traverse device

Abstract

To provide a heavy load traverse method or the like in a tunnel pit, which enables work making a heavy load traverse in the tunnel pit to be safely executed.SOLUTION: The present invention relates to a heavy load traverse method in a tunnel pit that, at a tunnel construction site where a heavy load is moved on rails laid along a tunnel extension direction on a pit ground surface under tunnel construction, makes the heavy load traverse from the rails to a temporary installation location for the heavy load located in a rail transverse direction. The heavy load traverse method in a tunnel pit includes connecting one end sides of ropes to a side part of a heavy load 1 moved to rails 2 located next to a temporary installation location 4, leading the other end sides of the ropes via traction direction conversion means provided at the temporary installation location 4 side to a pit mouth side or a pit face side and connecting the same to traction means, and then making the heavy load traverse from the rails to the temporary installation location by drawing the ropes to the pit mouth side or the pit face side by using the traction means.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a method for moving a heavy object laterally inside a tunnel at a tunnel construction site that employs a rail construction method. [Background technology]

[0002] When constructing small-section tunnels, a rail construction method is sometimes used in which rails are laid on the ground inside the tunnel along the tunnel's extension direction, and a traction means such as a battery locomotive is used to transport debris and other processes (see Patent Document 1). In tunnel construction using this rail construction method, it is necessary to move heavy objects such as high-voltage transformers and dust collectors to the tunnel face as excavation progresses. High-voltage transformers are used to supply the construction power required to drive excavators, sprayers, compressors, belt conveyors, dust collectors, etc. For example, high-voltage transformers and dust collectors need to be moved to the face side every 100 meters of excavation, or once a month. However, these heavy objects do not have self-propelled gear. Therefore, such heavy objects must be moved by, for example, loading them onto a vehicle or towing them with heavy machinery, but in small cross-section tunnels, there are restrictions on moving heavy objects by loading them onto a vehicle or towing them with heavy machinery. For this reason, in the past, when rail construction was used at a small-section tunnel construction site T, as shown in Figure 2, the method of moving a heavy object 1 inside the tunnel T1 was to tow the heavy object 1 on rails 2 using a towing means (not shown), such as a battery locomotive, to the side of the tunnel widening point T2, which will be the temporary installation location 4 for the heavy object 1, and then move the heavy object 1 laterally from on the rails 2 to the temporary installation location 4, which is located laterally of the rails 2. In other words, since rails 2 are used to transport the debris generated during excavation work and remove it from the mine, it is necessary to move heavy load 1 sideways from rail 2 to temporary installation location 4 set up at the tunnel widening point next to rail 2. In this case, first, a heavy load 1 is fixed onto an iron plate 10 placed on the rail 2, and then the iron plate 10 to which the heavy load 1 is fixed is pulled by a towing means not shown, such as a battery locomotive, to move the heavy load 1 forward (towards the working face) on the rail 2 to a position next to the temporary installation location 4, and then a lateral movement means is used to move the heavy load 1 laterally from the rail 2 to the temporary installation location 4. As the lateral movement means, for example, a traction means such as a lever block (registered trademark) 5 is used. As shown in Figure 2, the hook on one end of the lever block 5 is connected to a connecting part 11 provided on the side of the heavy object 1, and the hook on the other end of the lever block 5 is connected to a connecting part 12 attached to a rock bolt 6 or support provided on the tunnel wall side of the widening section T2. The connecting portion 11 is constituted by a hole or the like provided on the heavy object 1 or the steel plate 10 and capable of engaging with the hook on one end of the lever block 5, and the connecting portion 12 is constituted by, for example, a shackle attached to the rock bolt 6 or the support. A plurality of lever blocks 5 are provided at intervals along the extension direction of the heavy load 1 (extension direction of the tunnel). Figure 2 shows an example in which four lever blocks are used at intervals along the extension direction of the heavy load 1. By operating each lever block 5, 5..., the lock bolts 6 and supports function as reaction force receivers to pull the heavy object 1 toward the temporary installation location 4, thereby moving the heavy object 1 laterally to the temporary installation location 4. In addition, a lateral path (not shown) is formed between the rails 2 and the temporary installation location 4 so that the heavy load 1 fixedly installed on the steel plate 10 can be smoothly moved from the rails 2 to the temporary installation location 4. The lateral path is formed by laying a plurality of relay rails made of H-shaped steel or the like on the ground so that the height of the road surface is approximately the same as the height of the rails 2. In other words, the lateral path is formed by installing a plurality of relay rails extending in a direction perpendicular to the rails 2 at predetermined intervals along the extension direction of the rails 2. By providing such a lateral path, the steel plate 10 carrying the heavy load 1 can be smoothly moved from the rails 2 onto the lateral path, and the steel plate 10 carrying the heavy load 1 can be smoothly moved along the lateral path to the temporary installation location 4. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3026075 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned method of moving heavy objects laterally inside a tunnel requires a lever block to be installed between the tunnel wall and the heavy object, and a worker must stand between the tunnel wall and the heavy object to operate the lever block. This poses a risk of the heavy object falling in the direction in which it is being towed, posing a challenge in terms of work safety. The present invention provides a method and device for lateral movement of heavy objects in a tunnel, which enables the work of lateral movement of heavy objects in a tunnel to be carried out safely. [Means for solving the problem]

[0005] The method for moving heavy objects laterally within a tunnel according to the present invention is a method for moving heavy objects laterally within a tunnel at a tunnel construction site, where heavy objects are moved on rails laid on the ground within the tunnel along the extension direction of the tunnel during tunnel construction, by moving the heavy objects laterally from on the rails to a temporary installation location for the heavy objects located laterally of the rails, characterized in that one end of a rope is connected to the side of the heavy object that has been moved onto the rail located next to the temporary installation location, and the other end of the rope is led to the face side or the tunnel entrance side via a pulling direction changing means provided on the temporary installation location side and connected to a pulling means, and the rope is then pulled by the pulling means to the face side or the tunnel entrance side, thereby moving the heavy object laterally from on the rail to the temporary installation location. The method for moving a heavy object laterally in a tunnel according to the present invention is a method for moving a heavy object laterally in a tunnel at a tunnel construction site, in which the heavy object is moved on rails laid on the ground in the tunnel along the tunnel extension direction during tunnel construction, and the method moves the heavy object laterally from the rails to a temporary installation location for the heavy object located laterally of the rails, and the method comprises connecting one end of a first rope to a side of the face side of the heavy object that has been moved onto the rails located laterally of the temporary installation location, and connecting the other end of the first rope to a first pulling direction changing means provided on the temporary installation location side. The heavy object is moved laterally from the rail to the temporary installation location by connecting one end of a second rope to the side of the object on the mine entrance side, passing the other end of the second rope through a second pulling direction changing means provided on the temporary installation location side and being connected to the second pulling means, and then the first rope is pulled toward the mine face by the first pulling means, and the second rope is pulled toward the mine entrance by the second pulling means, thereby moving the heavy object laterally from the rail to the temporary installation location. The device for moving heavy objects laterally within a tunnel according to the present invention is a device for moving heavy objects laterally within a tunnel at a tunnel construction site, where heavy objects are moved on rails laid on the ground within the tunnel along the extension direction of the tunnel during construction, and which moves the heavy objects laterally from on the rails to a temporary installation location for the heavy objects located laterally of the rails, and is characterized by comprising: a rope having one end connected to the side of the heavy object that has been moved onto the rail located next to the temporary installation location; a pulling direction changing means that is provided on the temporary installation location side and guides the other end of the rope toward the face or the tunnel entrance; and a pulling means that pulls the other end of the rope that has been guided toward the face or the tunnel entrance toward the face or the tunnel entrance. Furthermore, the present invention provides a device for moving a heavy object laterally within a tunnel shaft, which is used at a tunnel construction site where a heavy object is moved on rails laid on the ground within the tunnel along the tunnel extension direction during tunnel construction, and which moves the heavy object laterally from the rails to a temporary installation location for the heavy object located laterally of the rails, and comprises a first device for towing the face side of the heavy object in the direction of the temporary installation location, and a second device for towing the tunnel entrance side of the heavy object in the direction of the temporary installation location, and the first device is used to pull the face side of the heavy object that has been moved onto the rails located laterally of the temporary installation location. the first device comprises a first rope having one end connected to the side of the heavy object on the mine entrance side of the heavy object which has been moved onto a rail located next to the temporary installation location, a first pulling direction changing means which is provided on the temporary installation location side and guides the other end of the first rope toward the mine face, and a first pulling means which pulls the other end of the first rope which has been guided toward the mine face toward the mine face; and the second device comprises a second rope having one end connected to the side of the heavy object on the mine entrance side of the heavy object which has been moved onto a rail located next to the temporary installation location, a second pulling direction changing means which is provided on the temporary installation location side and guides the other end of the second rope toward the mine face, and a second pulling means which pulls the other end of the second rope which has been guided toward the mine face toward the mine face. According to the method and device for lateral movement of a heavy object inside a tunnel according to the present invention, it is possible to safely carry out the work of lateral movement of a heavy object inside a tunnel. [Brief explanation of the drawings]

[0006] [Figure 1]1 is a cross-sectional view of a tunnel showing a method and device for lateral movement of a heavy object within a tunnel (first embodiment). FIG. [Figure 2] FIG. 1 is a cross-sectional view of a tunnel showing a method and device for lateral movement of a heavy object inside a tunnel (conventional example). DETAILED DESCRIPTION OF THE INVENTION

[0007] Embodiment 1 The method for moving a heavy object laterally according to the first embodiment is a method for moving a heavy object 1 on rails 2 laid along the extension direction of the tunnel on the ground TA inside the tunnel shaft T1 during tunnel construction, as shown in FIG. 1, at a tunnel construction site T, the heavy object 1 is moved on the rails 2 to the side of a temporary installation location 4 for the heavy object, and then moved laterally from on the rails 2 to the temporary installation location 4 located laterally of the rails 2. In FIG. 1, the same parts as those in the conventional example shown in FIG. 2 are denoted by the same reference numerals.

[0008] The tunnel construction site T is, for example, a small-section tunnel construction site T, and is a site that uses a rail construction method in which rails 2 are laid inside the tunnel T1 along the tunnel extension direction, and a traction means such as a battery locomotive (battery-powered locomotive) is used to pull a muck trolley or the like to transport muck and perform other processing.

[0009] The method for moving a heavy object laterally according to the first embodiment is a method including steps 1, 2, and 3 as shown below. As shown in Figure 1, step 1 is a step in which one end 71 of a first rope 7A is connected to a connecting part 11 provided on the front side (right side in Figure 1) of the working face side of the heavy object 1 that has been moved on rails 2 to the side of the temporary installation location 4, and the other end 72 of the first rope 7A is led to the front side (work face side) via a first traction direction conversion means 8A provided on the temporary installation location 4 side and connected to a first traction means 3A. Step 2 is a step in which one end 71 of the second rope 7B is connected to the connecting part 11 provided on the rear side (right side in Figure 1) of the heavy object 1, which has been moved on the rail 2 to the side of the temporary installation location 4, on the mine entrance side, and the other end 72 of the second rope 7B is guided to the rear side (mine entrance side) via the second traction direction conversion means 8B provided on the temporary installation location 4 side and connected to the second traction means 3B. Step 3 is a step in which the heavy object 1 is moved laterally from the rail 2 to the temporary installation location 4 by pulling the first rope 7A forward (in the direction indicated by the white arrow) using the first traction means 3A and pulling the second rope 7B backward (in the direction indicated by the white arrow) using the second traction means 3B.

[0010] That is, the method for moving a heavy object laterally according to the first embodiment involves connecting one end 71 of a first rope 7A to the front side of a heavy object 1 that has been moved on the rail 2 to the side of the temporary installation location 4, and then passing the other end 72 of the first rope 7A through a first pulling direction change means 8A provided on the temporary installation location 4 side to the front side and connecting it to the first pulling means 3A, and connecting one end 71 of a second rope 7B to the rear side of the heavy object 1 that has been moved on the rail 2 to the side of the temporary installation location 4, and then passing the other end 72 of the second rope 7B through a second pulling direction change means 8B provided on the temporary installation location 4 side to the rear side and connecting it to the second pulling means 3B, and then pulling the first rope 7A forward with the first pulling means 3A and pulling the second rope 7B rearward with the second pulling means 3B, thereby moving the heavy object 1 laterally from the rail 2 to the temporary installation location 4.

[0011] The heavy object lateral movement device for realizing the heavy object lateral movement method according to the above-mentioned embodiment 1 is configured to include a first device for towing the front side of the heavy object 1 located on the face side toward the temporary installation location 4, and a second device for towing the rear side of the heavy object 1 located on the mine mouth side toward the temporary installation location 4. As shown in Figure 1, the first device comprises a first rope 7A having one end 71 connected to a connecting part 11 provided on the front side (the right side in Figure 1) of the working face of the heavy object 1 that has been moved onto a rail 2 located next to the temporary installation location 4, a first pulling direction changing means 8A that is provided, for example, on the side of a high-voltage transformer or a dust collector, etc., and that guides the other end 72 of the first rope 7A to the front, and a first pulling means 3A that pulls the other end 72 of the first rope 7A that has been guided to the front to the front. The second device comprises a second rope 7B having one end 71 connected to a connecting part 11 provided on the rear side (right side in Figure 1) of the heavy object 1, which is the tunnel entrance side, that has been moved onto the rail 2 located next to the temporary installation location 4, a second pulling direction conversion means 8B provided on the temporary installation location 4 side and guiding the other end 72 of the second rope 7B to the rear side, and a second pulling means 3B that pulls the other end 72 of the second rope 7B that has been guided to the rear side to the rear side.

[0012] The first rope 7A and the second rope 7B may be, for example, wire ropes. The first pulling direction change means 8A and the second pulling direction change means 8B may be pulleys, for example, attached to the temporary installation site 4 (for example, to the rock bolts 6 or supports provided on the tunnel wall at the widening point T2, or to the ground near the tunnel wall). The first traction means 3A and the second traction means 3B may be, for example, a battery locomotive (battery-powered locomotive) that can run on the rails 2.

[0013] The connecting portion 11 is composed of a hole or the like similar to the connecting portion 11 provided in the heavy object 1 or the iron plate 10 described in Figure 2, i.e., a hole or the like provided in the heavy object 1 or the iron plate 10 to which one end 71 of the rope (first rope 7A or second rope 7B) can be connected. 2, a lateral movement path (not shown) is formed between the rail 2 and the temporary installation location 4. The lateral movement path is formed between the rail 2 and the temporary installation location 4, as in the configuration described in the conventional example of FIG.

[0014] According to the method for moving heavy objects laterally in embodiment 1, after performing the above-mentioned steps 1 and 2, in step 3, the battery locomotive as the first traction means 3A is moved toward the front side (the face side), and the battery locomotive as the second traction means 3B is moved toward the rear side (the mine mouth side). In other words, by operating the first traction means 3A and the second traction means 3B simultaneously to move the heavy load 1, the front side of the heavy load 1 is pulled laterally via the first rope 7A, and the rear side of the heavy load 1 is pulled laterally via the second rope 7B, so that the heavy load 1 moves smoothly from the rail 2 to the temporary installation location 4. That is, the iron plate 10 to which the heavy load 1 is fixed moves from the rail 2 onto a lateral movement path not shown in the figure, and the heavy load 1 moves onto the lateral movement path to the temporary installation location 4.

[0015] According to the method and device for moving a heavy object laterally of embodiment 1, there is no longer a need for workers to enter between the tunnel wall and the heavy object 1 to perform towing work, so that the work of moving the heavy object 1 laterally inside the tunnel T1 can be carried out safely.

[0016] In addition, in embodiment 1, a case where a heavy object 1 is moved laterally from a rail 2 to a temporary installation location 4 is described, but the method and device for moving a heavy object laterally according to the present invention can be similarly applied to a case where a heavy object 1 is moved laterally from a temporary installation location 4 to a rail 2. In this case, the traction direction changers 8A and 8B may be provided on the tunnel wall (the tunnel wall on the left side in Fig. 1) facing the tunnel wall at the widening point T2. For example, the traction direction changers 8A and 8B may be provided on rock bolts or supports provided on the tunnel wall in Fig. 1, or on the ground side close to the tunnel wall. That is, a step of connecting one end 71 of the first rope 7A to a connecting part 11 provided on the front side (left side in FIG. 1) of the heavy object 1 installed at the temporary installation site 4, which is the face side, and guiding the other end 72 of the first rope 7A to the front side via a first pulling direction changing means 8A provided on the tunnel wall surface (the tunnel wall surface on the left side in FIG. 1) facing the tunnel wall surface of the widening portion T2, and connecting it to the first pulling means 3A; a step of connecting one end 71 of the first rope 7B to the second rope 7B, and guiding the other end 72 of the second rope 7B to the rear side via a second pulling direction changing means 8B provided on the tunnel wall side opposite the tunnel wall at the widening point T2, and connecting it to the second pulling means 3B; and a step of pulling the first rope 7A forward with the first pulling means 3A and pulling the second rope 7B rearward with the second pulling means 3B, thereby moving the heavy object 1 laterally from the temporary installation location 4 onto the rails 2.

[0017] Embodiment 2 In the first embodiment, a method and device for towing on both the face side and the wellhead side are exemplified, but towing on only one of the face side and the wellhead side may also be used. In other words, a method for moving a heavy object laterally inside a tunnel may involve connecting one end of a rope to the side of the heavy object 1 which has been moved onto a rail located next to the temporary installation location, and then passing the other end of the rope through a traction direction change means provided on the temporary installation location side to the tunnel entrance or face side and connecting it to a traction means, and then using the traction means to pull the rope towards the tunnel entrance or face side, thereby moving the heavy object laterally from the rail to the temporary installation location. In addition, in order to realize this method, the heavy object lateral movement device may be a device that includes a rope with one end connected to the side of a heavy object that has been moved onto a rail located next to the temporary installation location, a pulling direction change means that is provided on the temporary installation location side and guides the other end of the rope toward the mine entrance or face, and a pulling means that pulls the other end of the rope that has been guided toward the mine entrance or face toward the mine entrance or face. In addition, in this method and apparatus, one end of a rope can be connected to the center of the front or back of the side of the heavy object 1, and the other end of the rope can be passed through a pulling direction change means and guided to the mine entrance or face side, connected to a pulling means, and then the rope can be pulled to the mine entrance or face side by the pulling means. Alternatively, as described in embodiment 1, both the other end 72 of the first rope 7A and the other end 72 of the second rope 7B may be pulled toward either the face side or the minehead side. Even with the method and apparatus of embodiment 2, as with the method and apparatus of embodiment 1, there is no need for workers to enter between the tunnel wall and the heavy object 1 to perform towing work, so work to move the heavy object 1 laterally inside the tunnel T1 can be carried out safely.

[0018] The pulling direction changing means 8 may be a member having a ring-shaped body through which a rope is passed (for example, a shackle). Furthermore, as the first traction means 3A and the second traction means 3B, traction means such as lever blocks may be used. [Explanation of symbols]

[0019] 1 heavy load, 2 rail, 3A first traction means, 3B second traction means, 4 Temporary installation location, 7A First rope, 7B Second rope, 8A first traction direction change means, 8B second traction direction change means, T-Tunnel construction site.

Claims

1. A method for lateral movement of a heavy object in a tunnel, in which a heavy object is moved on a rail laid on the ground inside the tunnel along the tunnel extension direction during tunnel construction, from the rail to a temporary installation location for the heavy object located laterally of the rail, A method for moving a heavy object laterally within a tunnel, characterized in that one end of a rope is connected to the side of the heavy object which has been moved onto a rail located next to a temporary installation location, the other end of the rope is passed through a pulling direction changing means provided on the temporary installation location side and led to the face side or the entrance side, where it is connected to a pulling means, and then the rope is pulled by the pulling means to the face side or the entrance side, thereby moving the heavy object laterally from the rail to the temporary installation location.

2. A method for lateral movement of a heavy object in a tunnel, in which a heavy object is moved on a rail laid on the ground inside the tunnel along the tunnel extension direction during tunnel construction, from the rail to a temporary installation location for the heavy object located laterally of the rail, One end of a first rope is connected to the face-side side of the heavy object that has been moved onto a rail located next to the temporary installation location, and the other end of the first rope is led to the face side via a first pulling direction changing means provided on the temporary installation location side and connected to the first pulling means; One end of the second rope is connected to the side of the tunnel entrance of the heavy object that has been moved onto a rail located next to the temporary installation location, and the other end of the second rope is led to the tunnel entrance side via a second pulling direction changing means provided on the temporary installation location side and connected to the second pulling means, A method for moving a heavy object laterally within a tunnel, characterized in that a first rope is pulled toward the tunnel face by a first pulling means, and a second rope is pulled toward the tunnel entrance by a second pulling means, thereby moving the heavy object laterally from a rail to a temporary installation location.

3. A heavy object lateral movement device that moves a heavy object on rails laid on the ground inside a tunnel along the tunnel extension direction at a tunnel construction site, the heavy object is moved laterally from the rail to a temporary installation location for the heavy object located laterally of the rail, A device for moving heavy objects laterally within a tunnel, comprising: a rope having one end connected to the side of a heavy object that has been moved onto a rail positioned next to a temporary installation location; a pulling direction changing means that is provided on the temporary installation location side and leads the other end of the rope toward the face side or the entrance side; and a pulling means that pulls the other end of the rope that has been led toward the face side or the entrance side.

4. A heavy object lateral movement device that moves a heavy object on rails laid on the ground inside a tunnel along the tunnel extension direction at a tunnel construction site, the heavy object is moved laterally from the rail to a temporary installation location for the heavy object located laterally of the rail, a first device for towing the face side of the heavy object in the direction of a temporary installation location; a second device for towing the wellhead side of the heavy object in the direction of a temporary installation location; The first device comprises a first rope having one end connected to a side of the face side of the heavy object that has been moved onto a rail located next to the temporary installation location, a first pulling direction changing means that is provided on the temporary installation location side and that guides the other end side of the first rope toward the face side, and a first pulling means that pulls the other end side of the first rope that has been guided toward the face side toward the face side; The second device is a device for moving heavy objects laterally within a tunnel, characterized in that it comprises: a second rope having one end connected to the tunnel entrance side of the heavy object that has been moved onto a rail located next to the temporary installation location; a second pulling direction changing means provided on the temporary installation location side for guiding the other end of the second rope toward the tunnel entrance side; and a second pulling means for pulling the other end of the second rope that has been guided toward the tunnel entrance side.

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