JP6066063B2 - Removal method of tunnel partition - Google Patents

Description

  The present invention relates to a tunnel partition removing method applied when removing a tunnel partition mainly used in a cross-flow ventilation system.

  In a road tunnel, it is necessary to introduce a ventilation system as necessary so that the exhaust air from the automobile traveling in the tunnel is not contaminated, and in a road tunnel with a long total length, Forced ventilation by machine is indispensable.

  For mechanical ventilation of road tunnels, a vertical flow ventilation system that ventilates along the tunnel axis direction by using a jet fan suspended from the inner surface of the top of the tunnel and a ventilation facility in the shaft, or installed in the tunnel There is a cross-flow ventilation system that performs air supply and exhaust along the direction perpendicular to the tunnel axis by using an air supply and exhaust duct, or a ventilation system that combines them.

  Among these, the cross-flow ventilation system partitions the space in the tunnel up and down with the ceiling so that the whole has an inverted T-shaped cross section when viewed from the tunnel axis direction, and further separates the top space that extends above the ceiling with a partition wall. Although it is divided into left and right, one side of the partition wall is an air supply duct, the other side is an exhaust duct, and the cost is high because the air supply and exhaust duct must be installed along the tunnel axial direction. Since it is possible to ensure sufficient and stable ventilation performance when there is a lot of traffic, many have been adopted especially in long tunnels.

  On the other hand, due to recent automobile exhaust gas regulations, the concentration of air pollutants such as carbon monoxide, nitrogen oxides, hydrocarbons and black smoke contained in automobile exhaust gas has been remarkably reduced, and road tunnel ventilation systems have also been reduced. The need to ensure high ventilation performance is less than before.

  Under such circumstances, plans to change the cross-flow ventilation system to the vertical-flow ventilation system or other ventilation systems are being studied.

Nakanihon Expressway Co., Ltd. [Search January 18, 2013], Internet <URL: http://www.c-nexco.co.jp/images/urgency/64/bf62958e77a276e10a2feb9b50786911.pdf>

  When changing the tunnel ventilation system from the cross-flow ventilation system to another ventilation system, the above-mentioned tunnel partition body must be removed in advance, and the tunnel partition body uses a rectangular ceiling plate made of precast concrete as a tunnel. Horizontally arranged so that the two sheets are adjacent to each other along the direction perpendicular to the axis and continuous along the tunnel axis direction, and the opposite edges thereof are connected to the lower ends of the suspension fittings attached to the top of the tunnel. In addition, the ceiling is configured by connecting the opposite edge to the opposite side wall of the tunnel, and the rectangular partition plate, also formed of precast concrete, is connected to the tunnel axis along the vertical plane on which the hanging metal fittings are arranged. The partition walls are configured by continuously arranging in the direction. These ceiling plates and partition plates have a width and height of 5 m, a depth of 1 m, and a mass of 1 More than a scale, in the above example, a total of 3,000 in the 1km per number, as many as 3,000t in the mass.

  For this reason, the removal method using a demolition crusher such as a nibler requires an enormous amount of time for the removal work, and as a result, the service suspension period as a road tunnel is prolonged and the influence on road traffic is enormous.

  Therefore, a removal method is planned in which the tunnel partition body is separated from the inner surface of the tunnel with the inverted T-shaped cross section and placed on a self-propelled multi-axle carriage, and this is taken out of the tunnel. The tunnel partition can be removed from the tunnel at a time over several tens of meters, and the time required for removal can be greatly reduced compared to the conventional removal method using a dismantling crusher (non-patented) Reference 1).

  However, as described above, the tunnel partition remains in an inverted T-shaped cross section, that is, the partition is in an upright state, and the tunnel partition that is the transported object becomes unstable at a normal transport speed. You will be forced to drive at a slow speed to the dismantling yard established in

  In addition, the vicinity of the entrance and exit of the existing tunnel does not necessarily have enough space due to the mountainous area, and considering the necessity of securing a driving lane for emergency vehicles, the dismantling yard is several kilometers away from the tunnel entrance and exit In such a situation, it takes a long time to transport the tunnel partition to the dismantling yard.

  On the other hand, since the empty head is naturally limited in the tunnel, it is extremely difficult to dismantle using a truck crane or other mobile crane in the tunnel, and above all, the mobile crane disturbs the unloading work. Attempts to dismantle the bulkhead when separating the tunnel partition from the inner surface of the tunnel are forced to carry out the dismantling work over the entire length of the tunnel, resulting in an increase in removal costs. It can also be.

  The present invention has been made in consideration of the above-described circumstances, and provides a method for removing a tunnel partition body that can quickly and safely remove a ceiling and partition walls constituting the tunnel partition body in an excellent and economical manner. For the purpose.

In order to achieve the above object, according to the method for removing a tunnel partition according to the present invention, as described in claim 1, a ceiling for partitioning the interior space of the tunnel vertically and a top space extending above the ceiling are orthogonal to the tunnel axis. In the tunnel partition body removal method of removing the tunnel partition body composed of a partition wall partitioning left and right in the vertical cross section from the tunnel,
Among the tunnel partition bodies, the load of the tunnel partition body located in the section to be removed along the tunnel axial direction is received in advance by a transport carriage,
The transport carriage is separated from the inner surface of the tunnel so as to maintain the horizontal posture of the ceiling belonging to the tunnel partition and the standing posture of the partition so that the tunnel partition located in the removal target section is maintained. Placed on the
By moving the transport carriage toward the partition dismantling section provided in a position apart from the removal target section in the tunnel and dismantling equipment disposed in the vicinity of the inner surface of the tunnel, Moving the partition object to be removed;
The removal target partition body is dismantled by the dismantling equipment so that the ceiling plate constituting the ceiling of the removal target partition body is maintained in a horizontal posture and the partition plate constituting the partition wall is changed from a standing posture to a horizontal posture. Separated into target ceiling plate and removal target partition plate,
In the state where the removal target ceiling plate is placed on the transfer carriage, the transfer carriage is returned to a new removal target section, the replacement step, the separation step, the movement step to the bulkhead demolition zone, and the demolition separation step. After repeating the above, the transport carriage is caused to travel out of the tunnel in a state where the removal target ceiling plate is placed on the transport carriage over a plurality of stages.

Further, according to the method for removing a tunnel partition body according to the present invention, as described in claim 2, a ceiling for partitioning the interior space of the tunnel vertically and a top space extending above the ceiling in a vertical section perpendicular to the tunnel axis In the method for removing a tunnel partition body, the tunnel partition body comprising a partition wall partitioning into a tunnel is removed from the tunnel,
Among the tunnel partition bodies, the load of the tunnel partition body located in the section to be removed along the tunnel axial direction is preliminarily received by the transfer carriage for replacement,
The tunnel partition located in the removal target section is separated from the inner surface of the tunnel so as to maintain the horizontal posture of the ceiling belonging to the tunnel partition and the standing posture of the partition wall, and the replacement as the partition target to be removed. Placed on the transport cart for
By moving the transfer transport carriage toward the partition dismantling section provided in a position apart from the removal target section in the tunnel and dismantling equipment disposed near the inner surface of the tunnel, Move the removal target partition to the dismantling section,
The removal target partition body is dismantled by the dismantling equipment so that the ceiling plate constituting the ceiling of the removal target partition body is maintained in a horizontal posture and the partition plate constituting the partition wall is changed from a standing posture to a horizontal posture. Separated into target ceiling plate and removal target partition plate,
With the removal target ceiling plate placed on the replacement transport carriage, the replacement transport carriage is returned to a new removal target section, the replacement process, the movement process to the bulkhead demolition section, and the disassembly After the separation process is repeated, a predetermined transshipment of the removal target ceiling plate from the replacement transfer carriage to the transporting carriage is performed in a state where the removal target ceiling plate is placed in a plurality of stages on the replacement transfer carriage. Transshipment at point,
The removal target ceiling board is carried out of the tunnel while being placed on the transport carriage.

[First invention]
In the method for removing a tunnel partition according to the first invention, when removing the tunnel partition installed in the interior space of the tunnel, first, in the tunnel partition, in the section to be removed along the tunnel axis direction. The load of the tunnel partition located is received in advance by the transport carriage.

  In the replacement, if necessary, the lifting mechanism provided in the transport cart is driven so that the upper surface of the mounting table provided on the transport cart is in contact with the lower surface of the ceiling plate, or between the mounting table and the ceiling plate. A spacer may be interposed between them.

  Next, the tunnel partition located in the removal target section is separated from the inner surface of the tunnel and transported as the removal target partition so that the horizontal posture of the ceiling belonging to the tunnel partition is maintained and the standing posture of the partition is maintained. Place on the trolley.

  When the tunnel partition is separated from the inner surface of the tunnel, measures such as extending stays on both sides of the partition are taken in advance so that the partition does not fall after the separation.

  Next, by moving the transport carriage toward the partition wall dismantling section, the removal target partition is moved to the partition wall dismantling section.

  Next, with the dismantling equipment described above, remove the partition object to be removed so that the ceiling plate constituting the ceiling of the partition object to be removed is maintained in the horizontal posture and the partition plate constituting the partition wall is changed from the standing posture to the horizontal posture. Dismantle and separate into ceiling plate for removal and partition plate for removal.

  Next, after the dismantling and separating step described above, instead of immediately carrying out the outside of the tunnel, the transporting carriage is returned to the new removal target section in a state where the ceiling board to be removed is placed on the transporting carriage. The transfer carriage, the separation process, the movement process to the partition wall dismantling section and the disassembly separation process are repeated, and then the transport carriage is moved out of the tunnel with the ceiling plate to be removed placed on a plurality of stages. Let

  Thus, according to the method for removing a tunnel partition according to the present invention, a partition wall dismantling section is provided in the same tunnel separately from the section to be removed, and the partition object to be removed is moved to the partition dismantling section, and the object to be removed The partition body was disassembled with the dismantling equipment provided in the partition wall dismantling section so that the partition wall plate changed from the standing posture to the horizontal posture and separated into the ceiling plate to be removed and the partition wall plate to be removed. Even without providing a dismantling yard, the tunnel partition body can be separated into a ceiling plate and a partition plate without being forced to travel to the dismantling yard at a low speed, and these can be quickly carried out of the tunnel.

  In addition, the facility for dismantling need only be installed in the partition wall dismantling section, so that the facility burden is small.

  In addition, with the removal target ceiling plate placed on the transfer carriage, the transfer carriage is returned to the new removal target section, and the above-described replacement process, separation process, movement process to the bulkhead demolition section, and the demolition separation process are repeated. Since it did in this way, it becomes possible to carry out a lot more ceiling boards to be removed outside the tunnel, and the removal efficiency is improved.

  In the configuration described above, return to the second removal target section in a state where the removal target ceiling board related to the first removal target section and the removal target partition board related to the first removal target section are stacked on the ceiling board. After the second partition object to be removed is placed in the section, it is moved to the partition wall dismantling section and disassembled, and then the separated ceiling board and the partition wall board to be removed are removed. Stack the target partition board on the first target ceiling board and the target partition board loaded on top of it, and then sandwich the target partition board in the same manner. A typical example is a configuration in which the removal target ceiling plate is placed in multiple stages on the transport cart after repeating the procedure a suitable number of times, and then removed from the tunnel. For example, the arrangement width in the horizontal posture is 1 In contrast, the removal target bulkhead plate has a single configuration and the horizontal width is, for example, 5 m. Therefore, the procedure is to stack the removal target ceiling plate while sandwiching the removal target bulkhead plate. It may be necessary to take time to ensure the stability of the system.

  In that case, the removal target partition plate may be temporarily placed in another place, and only the removal target ceiling plate may be placed on the transport carriage over a plurality of stages.

[Second invention]
In the removal method of the tunnel partition body according to the second invention, in removing the tunnel partition body installed in the inner space of the tunnel, first, in the tunnel partition body within the section to be removed along the tunnel axis direction. The load of the tunnel partition located is received in advance by the transfer carriage.

  In the replacement, if necessary, the lifting mechanism provided on the transfer carriage is driven so that the upper surface of the mounting table provided on the transfer carriage is brought into contact with the lower surface of the ceiling plate. A spacer may be interposed between the mounting table and the ceiling plate.

  Next, the tunnel partition located in the section to be removed is separated from the inner surface of the tunnel and received as the partition to be removed so that the horizontal posture of the ceiling belonging to the tunnel partition is maintained and the standing posture of the partition is maintained. Place on the replacement transport cart.

  When the tunnel partition is separated from the inner surface of the tunnel, measures such as extending stays on both sides of the partition are taken in advance so that the partition does not fall after the separation.

  Next, by moving the transfer transport carriage toward the partition wall dismantling section, the partition object to be removed is moved to the partition wall dismantling section.

  Next, with the dismantling equipment described above, remove the partition object to be removed so that the ceiling plate constituting the ceiling of the partition object to be removed is maintained in the horizontal posture and the partition plate constituting the partition wall is changed from the standing posture to the horizontal posture. Dismantle and separate into ceiling plate for removal and partition plate for removal.

  Next, after the dismantling and separation step described above, the removal transportation carriage is newly removed while the removal target ceiling plate is placed on the replacement transportation carriage, instead of being immediately carried out of the tunnel. After returning to the target section and repeating the above-described replacement process, separation process, movement process to the bulkhead demolition section, and disassembly separation process, the removal target ceiling board is placed in a plurality of stages on the transfer carriage. The removal target ceiling board is transshipped from the transfer carriage to the transport carriage at a predetermined transshipment point.

  For example, when transferring the ceiling plate to be removed from the transfer transport cart to the transport transport cart, align the height of the loading platform between the transfer transport cart and the transport transport cart, and then change to the transport transport cart. By operating the installed winch, it is possible to employ a configuration in which the removal target ceiling plate placed on the transfer transport carriage is pulled on the transport carriage.

  Next, the transportation carriage is moved out of the tunnel in a state where the removal target ceiling boards are placed on the transportation carriage for a plurality of stages.

  Thus, according to the method for removing a tunnel partition according to the present invention, a partition wall dismantling section is provided in the same tunnel separately from the section to be removed, and the partition object to be removed is moved to the partition dismantling section, and the object to be removed The partition body was disassembled with the dismantling equipment provided in the partition wall dismantling section so that the partition wall plate changed from the standing posture to the horizontal posture and separated into the ceiling plate to be removed and the partition wall plate to be removed. Even without providing a dismantling yard, the tunnel partition body can be separated into a ceiling plate and a partition plate without being forced to travel to the dismantling yard at a low speed, and these can be quickly carried out of the tunnel.

  In addition, the facility for dismantling need only be installed in the partition wall dismantling section, so that the facility burden is small.

  In addition, with the ceiling board to be removed placed on the exchange carriage, the exchange carriage is returned to the new section to be removed, and the above-described exchange process, separation process, and movement process to the bulkhead demolition section. In addition, since the dismantling and separation process is repeated, it is possible to collect more ceiling boards to be removed and carry them out of the tunnel, and the removal efficiency is improved.

  In addition, the replacement partition was replaced with a transfer carriage, and the dismantled ceiling plate and partition bulkhead were removed with a transport carriage, so the completion of the unloading work was awaited. It is possible to dismantle and separate the partition body to be removed from the new section to be removed using the transfer carriage after the transshipment without having to enter the tunnel without entering another tunnel. Thus, dismantling and unloading are divided and the entire removal process can be further shortened.

  In the above-described configuration, the replacement transport is performed in a state where the removal target ceiling plate related to the first removal target section and the removal target partition plate related to the first removal target section are loaded on the replacement transport carriage. Return the carriage to the second removal target section, place the second removal target partition in the removal target section, move it to the bulkhead demolition section, dismantle it, and then separate the second removal The target ceiling plate and the partition wall plate to be removed are stacked on the first ceiling plate to be removed and the partition wall plate to be removed stacked on the ceiling plate to be removed on the ceiling plate to be removed. In the same manner, after repeating the procedure of placing the removal target ceiling plate in a plurality of stages on the transfer carriage for replacement while sandwiching the partition wall board to be removed in the same manner, the configuration of reloading to the transfer carriage for transportation is performed. As a typical example, the ceiling to be removed Is a set of two left and right, and the arrangement width in the horizontal posture is, for example, 10 m, whereas the partition wall to be removed is a single piece, and the arrangement width in the horizontal posture is, for example, 5 m. If the procedure is to stack the ceiling plate to be removed while sandwiching the target partition plate, it may take time to secure the stability during transshipment or transportation.

  In that case, the partition board to be removed is temporarily placed in another place, and only the ceiling board to be removed is placed on the transfer carriage for multiple stages, and this is transferred to the transport carriage. That's fine.

[Description of Configuration Common to First Invention and Second Invention]
A tunnel partition is a structure for the purpose of forming an air supply / exhaust duct in a cross-flow ventilation system, and two rectangular ceiling plates made of precast concrete are adjacent to each other along a direction perpendicular to the tunnel axis. In addition, they are horizontally arranged so as to be continuous along the tunnel axis direction, and their opposite edges are connected to the lower ends of the suspension fittings attached to the top of the tunnel, and the opposite edge is connected to the opposite side wall of the tunnel. This is mainly composed of a rectangular partition plate, which is also made of precast concrete, and is configured by continuously arranging the partition wall in the tunnel axis direction along the vertical plane on which the hanging metal fittings are arranged. As a target, the tunnel partition of the present invention suffices as long as the partition wall stands up with respect to the ceiling. May be used for tunnel ventilation, or may be used for purposes other than tunnel ventilation, such as installation of tunnel lighting equipment or laying of telecommunications cables, etc. Absent.

  The section to be removed can be determined by dividing the entire section of the tunnel along the tunnel axis as a length range that can be separated from the tunnel at one time. For example, it can be set to about 50 m depending on the function.

  It does not matter whether the transport cart or the transfer transport cart is provided with a driving mechanism for traveling, but for example, a self-propelled multi-axis cart called a dolly can be used.

  The partition wall dismantling section is located in the same tunnel as the removal target section, and is provided at a position apart from the removal target section, and dismantling equipment is disposed in the vicinity of the inner surface of the tunnel, and the partition target partitioning body is disassembled When moving to the section, the removal target partition is positioned in the work range of the dismantling facility.

  The dismantling equipment needs to be configured so that when the partition to be removed is dismantled, the partition plate can be separated from the ceiling plate in a form that transitions from the standing posture to the horizontal posture, but from the standing posture to the horizontal posture. Since the posture transition does not necessarily involve a lifting operation, it does not need to be capable of lifting in that sense.

  The dismantling equipment can be composed of a plurality of winches attached at different angular positions on the inner surface of the tunnel, and if there is no problem in terms of safety, a single winch attached only near the top It is also possible to configure.

  The installation range of the dismantling equipment along the tunnel axis direction, that is, the length of the partition wall dismantling section is the same length as the section to be removed, for example, 50 m, so that the partition bodies to be removed can be disassembled together. However, this is divided into 1/5, for example, to 10 m, and the removal target partition is shifted 10 m in the tunnel axis direction to repeat the disassembling procedure, and further the ceiling plate along the tunnel axis direction It is possible to repeat the disassembling procedure by shifting the partition object to be removed by 1 m in the tunnel axis direction after setting this to, for example, 1 m based on the length (depth) of the partition plate. May be determined as appropriate in consideration of the time required for dismantling and the installation cost of dismantling equipment.

The figure which showed the implementation procedure of the removal method of the tunnel partition body which concerns on 1st Embodiment. The figure which showed the implementation procedure of the removal method continuously. It is the figure of the tunnel 1 to which the removal method is applied, (a) is a vertical sectional view seen from the tunnel axis direction, (b) is an arrow view seen from the AA line direction. FIG. 4 is a vertical sectional view showing a state in which the tunnel partition body 4a is cut off from the tunnel 1 and placed on the transport carriage 31 as a removal target partition body 34. The vertical sectional view which showed a mode that the removal target partition body 34 was disassembled and the ceiling board 5 and the partition board 8 which comprise it were isolate | separated into the removal target ceiling board 45 and the removal target partition board 48. FIG. FIG. 4 is a vertical sectional view showing a state in which a removal target ceiling plate 45 and a removal target partition plate 48 are placed on a transport carriage 31. The vertical sectional view which showed a mode that the removal object ceiling board 45 and the removal object partition board 48 were carried out of the tunnel 1 with the conveyance trolley | bogie 31 in the state piled up in multiple steps. The figure which showed the implementation procedure of the removal method of the tunnel partition body which concerns on 2nd Embodiment. The figure which showed the implementation procedure of the removal method continuously.

  Hereinafter, an embodiment of a tunnel partition removing method according to the present invention will be described with reference to the accompanying drawings. Note that components that are substantially the same as those of the prior art are assigned the same reference numerals, and descriptions thereof are omitted.

[First embodiment]
FIGS. 1 and 2 are construction procedure diagrams showing a tunnel partition removing method according to the first embodiment, and FIG. 3 is a vertical sectional view and A- as seen from the tunnel axial direction of a tunnel to which the removing method is applied. It is an arrow view seen from the A line direction.

  As can be seen from FIG. 3, the tunnel partition removing method according to the present embodiment includes a ceiling 2 that partitions the interior space of the tunnel 1 up and down and a top space that extends above the ceiling in a vertical section perpendicular to the tunnel axis. The ceiling 2 is applied to a tunnel partition body 4 having an inverted T-shaped cross section composed of a partition wall 3 partitioned into a rectangular ceiling plate 5 made of precast concrete along a direction perpendicular to the tunnel axis. Are arranged horizontally so as to be adjacent to each other and along the tunnel axis direction, and their opposite edges are connected to the lower ends of the hanging metal fittings 6 attached to the top of the tunnel 1 and opposite edges. Are connected to the opposite side walls 7 and 7 of the tunnel 1, and the partition wall 3 is a rectangular partition plate 8 that is also formed of precast concrete. Been along a vertical plane are constituted successively arranged in the tunnel axis direction.

  In order to remove the tunnel partition body 4 described above from the tunnel 1 using the tunnel partition body removal method according to the present embodiment, first, as shown in FIG. The load of the tunnel partition 4a located in the removal target section along the axial direction is received in advance by the transport carriage 31.

  The removal target section can be set to about 50 m, for example, according to the transport carriage 31 so that the tunnel partition 4a can be separated from the tunnel 1 at a time.

  In the replacement, as shown in FIG. 4A, the lifting mechanism 32 provided on the transport carriage 31 is driven so that the upper surface of the mounting table provided on the transport carriage is brought into contact with the lower surface of the ceiling 2. Alternatively, a spacer is interposed between the mounting table and the ceiling 2.

  Next, after the separation, the stays 33 are stretched on both side surfaces of the partition wall so that the partition wall 3 does not fall down, and the standing posture is temporarily held, and then the junction between the tunnel partition 4a and the inner surface of the tunnel 1 is cut. Then, by driving the lifting mechanism 32 of the transport carriage 31 and lowering the mounting table, the tunnel partition 4a is separated from the inner surface of the tunnel 1 as shown in FIG.

  If it does in this way, the removal object partition 34 will be mounted in the conveyance trolley 31 in the state by which the horizontal attitude | position of the ceiling 2 was hold | maintained and the standing attitude | position of the partition 3 was hold | maintained, as shown in FIG.4 (b).

  Next, as shown in FIG.1 (c), by moving the conveyance trolley | bogie 31, the removal object partition 34 is moved to a partition demolition area.

  The partition wall dismantling section is located in the same tunnel 1 as the removal target section, and is provided at a position separated from the removal target section, and a dismantling facility 41 is disposed in the vicinity of the inner surface of the tunnel 1. In moving 34 to the partition wall dismantling section, the transport carriage 31 is stopped so that the removal target partition body 34 is positioned in the work range of the dismantling facility 41.

  FIG. 5 (a) shows a state in which the dismantling equipment 41 is configured by attaching winches 42 a, 42 b, 42 c to the inner surface of the top portion and the obliquely upper inner surface of the tunnel 1.

  Next, as shown in FIG. 1 (d), the removal target partition 34 is disassembled using the dismantling equipment 41, and the ceiling plate 5 and the partition plate 8 constituting the removal target partition are replaced with the removal target ceiling plate. 45 and the partition plate 48 to be removed.

  When dismantling the removal target partition body 34, as shown in FIG. 5 (b), the ceiling plate 5 constituting the ceiling 2 of the removal target partition body 34 is placed on the transport carriage 31 while maintaining the horizontal posture. The winches 42a, 42b, and 42c are appropriately arranged so that the partition plate 8 constituting the partition 3 is separated from each other as the removal target partition plate 48 changed from the standing posture to the horizontal posture as the removal target ceiling plate 45 to be left. Manipulate.

  The dismantling equipment 41 can be configured by installing a plurality of winches 42a, 42b, and 42c along the tunnel axis direction, and using a set of winches 42a, 42b, and 42c. In the case of disassembling one partition plate 8, the number of partition plates 8 equal to the number of winch pairs can be disassembled simultaneously.

  FIG. 6 shows a state in which the removal target ceiling plate 45 and the removal target partition plate 48 related to the above-described removal target section are placed on the transport carriage 31.

  Here, in the present embodiment, the removal target ceiling plate 45 and the removal target partition plate 48 are not carried out immediately outside the tunnel 1 after the dismantling and separation step described above, as shown in FIG. In the state where the removal target ceiling plate 45 and the removal target partition plate 48 are placed on the transport carriage 31, the transport carriage is returned to the new removal target section, and the above-described replacement process, separation process, and bulkhead disassembly section It is carried out of the tunnel 1 after repeating the moving process and the dismantling and separating process.

  That is, the load of the tunnel partition 4b located in the new removal target section is received in advance by the transport carriage 31, and then the tunnel partition 4b is separated from the inner surface of the tunnel 1 to form the removal target partition 34, As shown in FIG. 2 (b), the removal target partition is placed on the transport carriage 31 and moved to the partition wall dismantling section, and then the removal target partition 34 is disassembled using the dismantling equipment 41 and the removal target ceiling is removed. After being separated into the plate 45 and the partition wall plate 48 to be removed, as shown in FIG. 2 (c), the ceiling plate 45 to be removed and the partition plate 48 to be removed were alternately placed on a plurality of stages on the transport carriage 31. In this state, the transport cart is moved out of the tunnel 1.

  FIG. 7A shows the load of the tunnel partition 4b located in a new section to be removed by the transport carriage 31 with the removal target ceiling plate 45 and the removal target partition plate 48 placed thereon. The state in which the tunnel partition 4b is separated from the tunnel 1 and used as the removal target partition 34 in the state is shown in FIG. 5B. The removal target ceiling plate 45 and the removal target partition plate 48 related to the first removal target section are shown in FIG. Is a state in which the removal target ceiling plate 45 and the removal target partition plate 48 related to the second removal target section are further stacked thereon.

  As described above, according to the method for removing a tunnel partition according to the present embodiment, a partition dismantling section is provided in the same tunnel 1 separately from the section to be removed, and the partition target 34 to be removed is provided in the partition disassembling section. In addition to being moved, the removal target partition 34 is disassembled by the dismantling equipment 41 provided in the partition dismantling section, and the ceiling plate 5 and the partition plate 8 constituting the partition plate 34 are changed from the standing posture to the horizontal posture. Since the ceiling plate 45 to be removed and the partition wall plate 48 to be removed are separated from each other, the tunnel partition 34 is not required to travel to the dismantling yard without being provided with a dismantling yard outside the tunnel 1. Can be separated into a removal target ceiling plate 45 and a removal target partition plate 48, and these can be quickly carried out of the tunnel.

  Moreover, since it is sufficient that the dismantling equipment 41 is installed in the partition wall dismantling section, the equipment burden is small.

  Further, according to the tunnel partition removing method according to the present embodiment, the transport carriage is returned to the new removal target section in a state where the removal target ceiling plate 45 and the removal target partition plate 48 are placed on the transport cart 31. Since the above-described replacement process, separation process, movement process to the partition dismantling section, and disassembly separation process are repeated, more removal target ceiling plates 45 and removal target partition plates 48 are collectively transported out of the tunnel 1. And the removal efficiency is improved.

  In this embodiment, the transport carriage 31 is returned to the new removal target section only once after the dismantling and separation. However, if there is a margin in the stackable height of the transport carriage 31, the transport carriage 31 is newly removed. When returning to the section, the above-described procedure of stacking the removal target ceiling plate 45 and the removal target partition plate 48 thereon can be repeated any number of times.

  Further, in this embodiment, the state in which the removal target partition plate 48 is stacked on the removal target ceiling plate 45 is stacked, but as can be clearly seen in FIG. While the set of two sheets has an arrangement width in the horizontal posture of, for example, 10 m, the removal target partition plate 48 has a single piece structure and the arrangement width in the horizontal position of, for example, 5 m. In the procedure of stacking the ceiling plates 45 and 45 to be removed while sandwiching the partition plate 48, it may be time-consuming to secure the stability in transportation.

  In that case, the removal target partition plate 48 is temporarily placed in another place, only the removal target ceiling plates 45 and 45 are placed on the transport carriage 31 over a plurality of stages, and the removal target partition plate 48 is separately carried out. You can do it.

[Second Embodiment]
Next, a second embodiment will be described. Note that components that are substantially the same as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  FIG.8 and FIG.9 is the construction procedure figure which showed the removal method of the tunnel partition body which concerns on 2nd Embodiment. As can be seen from FIG. 8, in order to remove the tunnel partition 4 from the tunnel 1 using the tunnel partition removal method according to the second embodiment, as shown in FIG. Of the body 4, the load of the tunnel partition located in the section to be removed along the tunnel axis direction is previously received by the transfer carriage 81, and in this state, the tunnel partition is separated from the tunnel 1, The tunnel partition is placed on the transfer transport carriage 81 as the removal target partition 34.

  Here, the transfer carriage 81 has the same configuration as that of the transfer carriage 31, and the procedure for placing the removal target partition 34 on the transfer carriage 81 is also described in the first embodiment. Since it is the same as the mounting procedure to 31, the description thereof is omitted here, but in the second embodiment, when the tunnel partition body 4 is disassembled and carried out, a single transport carriage 31 as in the first embodiment. It is not carried out in step 2, but is carried out by two units of a transfer carriage 81 and a transfer carriage 82.

  Next, as shown in FIG. 8 (b), by moving the transfer carriage 81, the removal target partition 34 is moved to the partition wall demolition section, and then the removal target partition using the dismantling facility 41. The body 34 is disassembled, and the ceiling plate 5 and the partition plate 8 constituting the removal target partition are separated into the removal target ceiling plate 45 and the removal target partition plate 48.

  Since the disassembly and separation process is the same as the disassembly and separation process described in the first embodiment, detailed description thereof is omitted.

  Here, in this embodiment, after the dismantling and separation step described above, the removal target ceiling plate 45 and the removal target partition plate 48 are not carried out immediately outside the tunnel 1 but as shown in FIG. In the state where the removal target ceiling plate 45 and the removal target partition plate 48 are placed on the replacement transport carriage 81, the replacement transport carriage is returned to the new removal target section, and the above-described replacement process. After the separation step, the movement step to the partition wall dismantling section, and the disassembly separation step are repeated, the material is carried out of the tunnel 1.

  That is, the load of the tunnel partition 4b located in the new removal target section is received in advance by the transfer carriage 81, and then the tunnel partition 4b is separated from the inner surface of the tunnel 1 to be the removal target partition 34. Thereafter, the partition object to be removed is placed on the transfer transport carriage 81 as shown in FIG. 9 (b) and moved to the partition wall dismantling section, and then the dismantling equipment 41 as shown in FIG. 9 (c). Is used to dismantle the partition 34 to be removed and separate it into a ceiling plate 45 to be removed and a partition plate 48 to be removed.

  Next, as shown in FIG. 9 (d), the winches installed in front of the transport carriage 82 after the heights of the loading platforms of the transfer transport cart 81 and the transport cart 82 are made uniform. 83 is used to pull the removal target ceiling plate 45 and the removal target partition plate 48 placed on the replacement transfer carriage 81, so that the removal target ceiling plate and the removal target partition plate are transferred to the transport conveyance cart 82. Transship.

  The transporting carriage 82 may have the same configuration as that of the transportation carriage 31, but since there is no need for replacement, the lifting mechanism can be omitted.

  Next, in the same manner as in the first embodiment, the removal target ceiling plate 45 and the removal target partition plate 48 are alternately placed in a plurality of stages on the conveyance carriage 82 (see FIG. 7B). By moving the transport cart outside the tunnel 1, the removal target ceiling plate 45 and the removal target partition plate 48 are carried out of the tunnel 1.

  In this embodiment, when the transfer to the transport carriage 82 is completed, the transfer transport carriage 81 is in an empty state, so that the replacement transport carriage 81 is newly removed immediately after the transfer. It moves to a target section, and the replacement, placement, movement, and disassembly separation of the removal target partition 4 in the new removal target section are repeated according to the procedure described above.

  As described above, according to the method for removing a tunnel partition according to this embodiment, a partition wall dismantling section is provided in the same tunnel 1 separately from the section to be removed, as in the first embodiment, and the partition wall dismantling section. The partition object 34 is moved to the dismantling area, and the partition object 34 is dismantled by the dismantling equipment 41 provided in the partition wall dismantling section, and the ceiling board 5 and the partition board 8 constituting the partition board 34 stand upright. Since it is separated into the removal target ceiling plate 45 and the removal target partition plate 48 so as to be in a horizontal posture, even if a dismantling yard is not provided outside the tunnel 1, it is forced to travel at a low speed to the dismantling yard. Without separation, the tunnel partition 34 can be separated into the removal target ceiling plate 45 and the removal target partition plate 48, and these can be quickly carried out of the tunnel.

  Moreover, since it is sufficient that the dismantling equipment 41 is installed in the partition wall dismantling section, the equipment burden is small.

  In addition, according to the method for removing the tunnel partition according to the present embodiment, the replacement from the replacement to the unloading is not performed only by the transport carriage, but the replacement of the removal target partition 34 is performed by the replacement transport carriage 81. Since the dismantled ceiling plate 45 and the partition wall 48 to be removed are carried out by the transporting carriage 82 for transportation, it is possible to enter another tunnel into the tunnel without waiting for completion of the carrying-out operation. Instead, it is possible to perform a series of operations from the replacement to the new removal target section to the dismantling separation by using the transfer carriage 81 after the transshipment.

  Therefore, the dismantling and unloading are divided and thus the entire removal process can be shortened.

  In addition, according to the method for removing the tunnel partition according to the present embodiment, the replacement transport carriage is displayed in a state where the removal target ceiling plate 45 and the removal target partition plate 48 are placed on the replacement transport carriage 81. Returning to the section to be removed, the replacement process, the separation process, the movement process to the partition wall disassembly section and the disassembly separation process described above were repeated, coupled with the shortening of the construction period due to the simultaneous progress of dismantling and unloading, A larger number of removal target ceiling plates 45 and removal target partition plates 48 can be collectively transported out of the tunnel 1, thus further improving the removal efficiency of the tunnel partition 4.

  In this embodiment, the replacement transport carriage 81 is returned to the new removal target section only once after dismantling and separation. However, if there is a margin in the loadable height of the replacement transport carriage 81, the replacement transport carriage 81 is replaced. The above-described procedure of stacking the removal target ceiling plate 45 and the removal target partition plate 48 thereon can be repeated any number of times after the transport carriage 81 is returned to the new removal target section.

  In the present embodiment, the state in which the removal target partition plate 48 is stacked on the removal target ceiling plate 45 is stacked, but the removal target ceiling plates 45 and 45 are similar to those in FIG. 7 of the second embodiment. Is a set of two left and right, and the arrangement width in the horizontal posture is, for example, 10 m, whereas the partition plate 48 to be removed is a single piece and the arrangement width in the horizontal posture is, for example, 5 m, In the procedure of stacking the removal target ceiling plates 45 and 45 while sandwiching the removal target partition plate 48, it may be necessary to take time to secure the stability in conveyance.

  In that case, the partition wall plate 48 to be removed is temporarily placed in another place, only the ceiling plates 45 and 45 to be removed are placed on the transport carriage 82 over a plurality of stages, and the partition wall plate 48 to be removed is carried out separately. You just have to do it.

DESCRIPTION OF SYMBOLS 1 Tunnel 2 Ceiling 3 Bulkhead 4,4a, 4b Tunnel partition body 5 Ceiling plate 8 Bulkhead plate 31 Carriage carriage 34 Removal target partition body 41 Demolition equipment 45 Removal target ceiling board 48 Removal target partition board 81 Replacement conveyance carriage 82 Transport cart

Claims (2)

In a tunnel partition body removing method, a tunnel partition body comprising a ceiling partitioning an interior space of a tunnel up and down and a partition wall partitioning a top space extending above the ceiling into left and right in a vertical cross section perpendicular to the tunnel axis is removed from the tunnel. ,
Among the tunnel partition bodies, the load of the tunnel partition body located in the section to be removed along the tunnel axial direction is received in advance by a transport carriage,
The transport carriage is separated from the inner surface of the tunnel so as to maintain the horizontal posture of the ceiling belonging to the tunnel partition and the standing posture of the partition so that the tunnel partition located in the removal target section is maintained. Placed on the
By moving the transport carriage toward the partition dismantling section provided in a position apart from the removal target section in the tunnel and dismantling equipment disposed in the vicinity of the inner surface of the tunnel, Moving the partition object to be removed;
The removal target partition body is dismantled by the dismantling equipment so that the ceiling plate constituting the ceiling of the removal target partition body is maintained in a horizontal posture and the partition plate constituting the partition wall is changed from a standing posture to a horizontal posture. Separated into target ceiling plate and removal target partition plate,
In the state where the removal target ceiling plate is placed on the transfer carriage, the transfer carriage is returned to a new removal target section, the replacement step, the separation step, the movement step to the bulkhead demolition zone, and the demolition separation step. After repeating the above, the removal method of the tunnel partition body, wherein the transport carriage is caused to travel out of the tunnel in a state where the removal target ceiling plate is placed in a plurality of stages on the transport carriage. In a tunnel partition body removing method, a tunnel partition body comprising a ceiling partitioning an interior space of a tunnel up and down and a partition wall partitioning a top space extending above the ceiling into left and right in a vertical cross section perpendicular to the tunnel axis is removed from the tunnel. ,
Among the tunnel partition bodies, the load of the tunnel partition body located in the section to be removed along the tunnel axial direction is preliminarily received by the transfer carriage for replacement,
The tunnel partition located in the removal target section is separated from the inner surface of the tunnel so as to maintain the horizontal posture of the ceiling belonging to the tunnel partition and the standing posture of the partition wall, and the replacement as the partition target to be removed. Placed on the transport cart for
By moving the transfer transport carriage toward the partition dismantling section provided in a position apart from the removal target section in the tunnel and dismantling equipment disposed near the inner surface of the tunnel, Move the removal target partition to the dismantling section,
The removal target partition body is dismantled by the dismantling equipment so that the ceiling plate constituting the ceiling of the removal target partition body is maintained in a horizontal posture and the partition plate constituting the partition wall is changed from a standing posture to a horizontal posture. Separated into target ceiling plate and removal target partition plate,
With the removal target ceiling plate placed on the replacement transport carriage, the replacement transport carriage is returned to a new removal target section, the replacement process, the movement process to the bulkhead demolition section, and the disassembly After the separation process is repeated, a predetermined transshipment of the removal target ceiling plate from the replacement transfer carriage to the transporting carriage is performed in a state where the removal target ceiling plate is placed in a plurality of stages on the replacement transfer carriage. Transshipment at point,
A method for removing a tunnel partition, wherein the removal target ceiling plate is carried out of the tunnel while being placed on the transport carriage.

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