JP6283979B2 - Method and system for removing ceiling in tunnel - Google Patents

Description

  The present invention relates to a method and system for removing a ceiling in a tunnel mainly applied to a road tunnel with a high traffic volume.

  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 Semi-cross flow ventilation system that ventilates along the direction perpendicular to the tunnel axis using an air supply duct or exhaust duct, along the direction orthogonal to the tunnel axis by using the air supply duct and exhaust duct arranged in the tunnel There is a cross-flow ventilation system that performs ventilation, or a ventilation system that combines them.

  Among these, the semi-cross ventilation system and the cross-flow ventilation system divide the space in the tunnel up and down with a ceiling, and in the cross-flow ventilation system, the top space extending above the ceiling is further divided into left and right by a partition wall, and one of the partition walls is divided. When the side is an air supply duct and the other side is an exhaust duct, and the air supply duct and exhaust duct must be installed along the tunnel axis direction. Since it is possible to ensure sufficient and stable ventilation performance, many have been adopted particularly 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 significantly reduced, and the ventilation system for road tunnels has also been reduced. Therefore, there is little need to ensure high ventilation performance as before, and in response to this, plans to change the semi-current ventilation method and the cross-flow ventilation method to the vertical flow ventilation method and other ventilation methods have begun to be considered.

JP 2007-16482 A

  When changing the tunnel ventilation method from the semi-current ventilation method or the cross-flow ventilation method to another ventilation method, the above-mentioned ceiling and bulkhead must be removed in advance. These ceilings are made of precast concrete, and are composed of two ceiling plates arranged in an inverted T shape when viewed from above and a partition plate perpendicular to them, arranged continuously along the tunnel axis. Each of the plates and partition plates has a width and height of 5 m, a depth of 1 m, and a mass exceeding 1 t, and when it is 1 km, the total number is 3,000 and 3,000 t.

  For this reason, it takes a certain period of construction to remove the ceiling inside the tunnel, but the tunnel ceiling can be dismantled and removed while the tunnel is in use to reduce the impact on road traffic at that time. Has been proposed (Patent Document 1).

  However, as in the case of the above construction method, when the unloading vehicle is put on standby in the tunnel traveling path and the dismantled product of the ceiling is loaded on the unloading vehicle, the lane for the unloading vehicle to stand by is occupied in the traveling path. As a result, there is a problem that not all the roads can be put into service as a result, and there is no choice but to use the roads rather than simply loading the dismantled goods into the carry-out vehicle and carrying them out of the tunnel. Therefore, the current situation is that it must be partially used.

  Therefore, in the case of a tunnel with a heavy traffic volume, traffic jams occur on the road that includes the tunnel, as well as new traffic jams on the surrounding roads that serve as detours, greatly affecting the daily lives of neighboring residents. It is also a concern.

  The present invention has been made in consideration of the above-described circumstances, and an object of the present invention is to provide a ceiling removal method and system in a tunnel that can be used almost entirely in the tunnel travel path.

In order to achieve the above object, a method for removing a ceiling in a tunnel according to the present invention is a tunnel for removing a ceiling arranged in the tunnel so that the interior space of the tunnel is partitioned vertically as described in claim 1. In the ceiling removal method,
A vehicle protection frame is arranged in the tunnel so that a vehicle traveling space is formed between the traveling road by covering or surrounding the traveling road provided in the tunnel,
Dismantling the ceiling from its exposed edge using a workbench provided on the top of the top of the vehicle protective frame;
The vehicle protection frame is moved forward in accordance with the retraction of the exposed edge part during the dismantling process, and the conveyance object generated by the dismantling process is directed toward the advancing direction of the vehicle protection frame and in the inner space of the tunnel. among them, was conveyed to the transshipment area through the space extending between the ceiling and the top of the tunnel, a ceiling removing method reloading the transport vehicle in the transshipment area,
The transshipment area is provided on the side of the wellhead located in the forward direction of the vehicle protection frame in the tunnel wellhead and outside the tunnel, or the traveling path located in the forward direction of the vehicle protection frame It is provided in the side extension part .

Moreover, the ceiling removal system in the tunnel which concerns on this invention is the ceiling removal system in the tunnel which removes the ceiling arrange | positioned in this tunnel so that the interior space of a tunnel may be divided up and down, as described in Claim 2 In
A vehicle protection frame disposed in the tunnel so as to form a vehicle travel space between the travel path by covering or surrounding the travel path provided in the tunnel;
Dismantling means placed on a workbench provided on the top surface of the vehicle protective frame and configured to dismantle the ceiling from its exposed edge;
Transport means for transporting a transport object generated by the dismantling means,
The vehicle protection frame is configured to be able to advance in accordance with the retraction of the exposed edge of the ceiling accompanying the dismantling of the ceiling, and the transport means is configured to move the object to be transported in the advancing direction of the vehicle protection frame. In the inner space of the tunnel, it is configured to be conveyed through a space extending between the top of the tunnel and the ceiling .

  In the ceiling removal system in a tunnel according to the present invention, the transport unit includes a holding unit that holds the object to be transported and a drive mechanism that drives the holding unit.

  In the ceiling removal system in the tunnel according to the present invention, the transport means includes a transport pipe for transporting the transport object and a pressure pump or a suction pump connected to the transport pipe.

In the ceiling removal system in the tunnel according to the present invention, the suction pump is provided outside of the tunnel, at a side of the tunnel located in the forward direction of the vehicle protection frame. It is installed in the form of a vacuum vehicle waiting in a transshipment area provided in a laterally extending portion of the travel path located in the forward direction of the vehicle protection frame .

Also, the ceiling removal system in the tunnel according to the present invention, the out of tunnel wellhead, the vehicle is positioned in the forward direction of the protective frame comprising a laterally wellhead transshipment area or the provided outside of the tunnel A sealed temporary storage tank is installed in a transshipment area provided in a laterally extending portion of the travel path positioned in the forward direction of the vehicle protection frame , and the sealed temporary storage tank is configured so that a vacuum vehicle can be connected in communication. Is.

  In the method and system for removing a ceiling in a tunnel according to the present invention, when removing the ceiling arranged in the tunnel, first, the vehicle is provided between the traveling road by covering or surrounding the traveling road provided in the tunnel. A vehicle protective frame is arranged in the tunnel so that a traveling space is formed.

  Next, the ceiling in the tunnel is disassembled from the exposed edge using a work table provided on the top surface of the top of the vehicle protection frame.

  Here, if the ceiling is extended to the entire tunnel because it is before the start of removal, or the ceiling has been dismantled in some tunnel sections and the edge of the ceiling is exposed at the end of the section If you want to start dismantling again from another location, you can dismantle the ceiling at the desired starting position to expose the edge of the ceiling and work space for dismantling above the vehicle protection frame Should be ensured.

When the ceiling is disassembled from the exposed edge, the exposed edge of the ceiling retreats as the disassembly work proceeds, so the vehicle protection frame is advanced in accordance with the retreat of the exposed edge, and the conveyance object generated by disassembly Is transported in the forward direction of the vehicle protection frame through the space extending between the top of the tunnel and the ceiling, that is , the space above the ceiling.

  The dismantling and transporting operations are typically performed using dismantling and transporting means, but in the case of a small-scale tunnel, the dismantling and transporting by workers, especially the ceiling separated from the tunnel, should not be crushed. It is possible to carry it as it is.

Next, the transported object to be transported is a transshipment area or a forward direction of the vehicle protective frame provided outside the tunnel at the side of the tunnel well located in the forward direction of the vehicle protective frame. The vehicle is transshipped in a transshipment area provided in a laterally extending portion of the traveling road located at the position .

  Of the transshipment areas, the transshipment area on the wellhead side may be newly installed on the wellhead side or the land of the parking zone or the management facility may be diverted, and the existing emergency parking zone may be diverted on the roadway side.

  In this way, the transport object is not transported immediately after dismantling or at the disassembled place to the transporting vehicle, but once transported through the space above the ceiling, then the transshipment area on the wellhead side or the transshipment area on the traveling road side If the vehicle is transferred to the transport vehicle that is on standby, it is not necessary to occupy a part of the travel path for transporting the transport object, and the tunnel travel path can be used almost entirely.

  The present invention is mainly applicable to a tunnel having a ceiling provided as an element of tunnel ventilation equipment. However, in addition to tunnel ventilation, for example, for the purpose of installing lighting equipment or laying telecommunications cables, etc. If the ceiling is laid inside, they are also applicable, and there is no difference in the ventilation method such as the semi-current ventilation method and the cross-flow ventilation method.

  In addition, in the case where the upper space of the ceiling is divided into right and left by a partition wall as in the cross-flow ventilation method, the present invention can be applied to the case where only the ceiling or both the ceiling and the partition wall are removed. In the latter case, the partition walls may be treated in the same manner as the ceiling. In addition, when the upper space of a ceiling is divided into right and left by the partition, either upper space of right and left may be made into the upper space of this invention.

  The dismantling means is for separating the installed ceiling from the tunnel or crushing it to a state where it can be further transported. When crushing, depending on the shape and size to be crushed , Concrete crusher (large crusher), cutting machine (cutter), grab machine (fork grab), breaker, etc. can be selected and configured, and a small crusher such as jaw crusher can be used together as appropriate It is possible to configure.

  On the other hand, the dismantling means may be one that only separates the installed ceiling from the tunnel, and in that case, the separated precast concrete board may be conveyed as it is without being crushed.

As long as the transport means can transport the object to be transported in the forward direction of the vehicle protection frame and can be transported through the space above the ceiling, its specific configuration is not limited.
(a) Configuration comprising holding means for holding the object to be conveyed and a drive mechanism for driving the holding means
(b) It is roughly divided into two configurations including a transport pipe for transporting the object to be transported and a pressure pump or a suction pump connected to the transport pipe.

  As the conveying means belonging to (a), belt conveyors, terha cranes, trucks, etc. are applicable. In the case of a belt conveyor, an endless conveying belt is a holding means, and a motor that rotationally drives the endless conveying belt. Corresponds to the drive mechanism, and in the case of a Telha crane, the bucket corresponds to the holding means, and the power mechanism that travels along the guide rail attached near the top of the tunnel corresponds to the drive mechanism. In such a case, the trolley is the holding means and the power mechanism provided on the trolley is the drive mechanism because the trolley is a self-propelled structure on the track laid on the upper surface of the ceiling.

  That is, the transport means belonging to (a) is structurally required to place the drive mechanism close to the holding means, and therefore the load of the relatively heavy drive mechanism is applied to the ceiling or the top of the tunnel. Whereas it is necessary to support, the transport means belonging to (b) can arrange the pump and suction pump in a place separated from the space above the ceiling, and these loads can be placed on the ceiling or the top of the tunnel. There is no need to support.

  Therefore, it is possible to employ a configuration in which these pumps, particularly a pumping pump having a relatively large weight, are installed in the vehicle protective frame. In this case, it is sufficient to arrange only the transport pipe in the space above the ceiling. , Ceiling reinforcement and suspension from the top of the tunnel are no longer necessary, or their need is reduced.

  There are two types of pressure pumps: one that pumps the object to be transported as it is (dry type) and one that is made into a slurry and then pumped (wet type). And may be selected as appropriate.

  On the other hand, among the tunnel wells, the suction pump is located on the side of the wellhead located in the forward direction of the vehicle protective frame and is relocated to the transshipment area provided outside the tunnel or on the side of the traveling path. It is possible to adopt a configuration installed as a vacuum vehicle waiting in the area, and in this case, ceiling reinforcement and suspension from the top of the tunnel are not required, or the necessity thereof is reduced. In addition, according to the above configuration, since the vacuum vehicle becomes a transport vehicle, transshipment of the transport object is also performed at the same time.

  Of the transshipment areas, the transshipment area on the wellhead side may be newly installed on the wellhead side or the land of the parking zone or the management facility may be diverted, and the existing emergency parking zone may be diverted on the roadway side.

It is arbitrary how the transport object transported by the various transport means described above is transported to the transport vehicle waiting in the transshipment area, and may be put into a transport vehicle such as a dump truck. Of the tunnel wells, the side of the wellhead located in the forward direction of the vehicle protection frame and the lateral extension of the transshipment area provided outside the tunnel or the roadway located in the forward direction of the vehicle protection frame When a sealed temporary storage tank is installed in the transshipment area provided in the part , and when the closed temporary storage tank is configured so that a vacuum vehicle can be communicated, it can be transported without diffusing dust in the tunnel. It becomes possible to transfer the object to a vacuum vehicle as a transport vehicle.

  Of the transshipment areas, the transshipment area on the wellhead side may be newly installed on the wellhead side or the land of the parking zone or the management facility may be diverted, and the existing emergency parking zone may be diverted on the roadway side.

It is a general view of the ceiling removal system in the tunnel which concerns on 1st Embodiment, (a) is a vertical sectional view, (b) is a horizontal sectional view which follows an AA line. It is detail drawing in the dismantling place vicinity of the ceiling removal system in the tunnel which concerns on 1st Embodiment, (a) is an arrow view seen from the tunnel axial direction, (b) is an arrow view seen from the BB line direction. Figure. Explanatory drawing which showed the effect | action of the ceiling removal system in the tunnel which concerns on 1st Embodiment. It is a figure which concerns on a modification, (a) is sectional drawing seen from the tunnel axial direction, (b) is the arrow line view seen from CC line direction. It is a figure which concerns on another modification, (a) is sectional drawing seen from the tunnel axial direction, (b) is the arrow line view seen from the DD line direction. It is detail drawing in the dismantling place vicinity of the ceiling removal system in the tunnel which concerns on 2nd Embodiment, (a) is an arrow view seen from the tunnel axial direction, (b) is an arrow view seen from the EE line direction. Figure. Explanatory drawing which showed the effect | action of the ceiling removal system in the tunnel which concerns on 2nd Embodiment. It is a figure which concerns on a modification, (a) is sectional drawing seen from the tunnel axial direction, (b) is the arrow line view seen from the FF line direction. It is a figure which concerns on another modification, (a) is a side view in the vicinity of a dismantling place, (b) is a vertical sectional view in the vicinity of the conveyance destination.

  Embodiments of a ceiling removal method and system in a tunnel according to the present invention will be described below with reference to the accompanying drawings.

[First Embodiment]
FIG. 1 is an overall view showing a ceiling removal system in a tunnel according to the present embodiment, and FIG. 2 is a detailed view around a dismantling place.

  As shown in these drawings, the ceiling removal system 1 in the tunnel according to the present embodiment includes a ceiling 3 arranged in the tunnel and an upper space above the ceiling so that the internal space of the tunnel 2 is partitioned vertically. This is applied when removing the tunnel partition 5 having a reverse T-shaped cross section composed of a partition wall 4 erected on the ceiling 3 so as to be divided to the left and right. A vehicle protection frame 21 disposed in the tunnel 2 so as to form a vehicle traveling space 7 between the traveling path 6 and the work provided on the top upper surface of the vehicle protection frame. A gripping machine 23 and a small crusher 24 as dismantling means placed on a table 22 and a belt conveyor 25 for conveying a conveyance object generated by the disassembling means are provided.

  The ceiling 3 is horizontally arranged so that two rectangular ceiling plates made of precast concrete are adjacent to each other along the direction perpendicular to the tunnel axis and are continuous along the tunnel axis direction, and their opposite edges Are connected to the lower end of a suspension fitting (not shown) attached to the top of the tunnel 2 and the opposite edge is connected to the opposite side walls 27, 27 of the tunnel 2, respectively. In addition, a rectangular partition plate, also formed of precast concrete, is continuously arranged in the tunnel axis direction along the vertical plane on which the above-described suspension metal fittings are arranged.

  The vehicle protection frame 21 is constructed such that the above-described work table 22 is bridged over the tops of the wall bodies 28 and 28 arranged opposite to each other so that the cross section becomes a gate shape, so that the vehicle traveling space described above is formed inside the vehicle protection frame 21. 7 is formed, and while the dismantling work is performed by the gripping machine 23 and the small crusher 24 mounted on the work table 22, the traveling path 6 and a general vehicle traveling on the traveling path 6 can be used. In order to ensure safety, strength considerations and fall prevention measures are taken, and it is generally called a protector.

  In front and rear of the vehicle protection frame 21, elevating stairs 29 that lead to the work table 22 are respectively installed, and a safety passage 31 and a work table 22 that are arranged on the side of the travel path 6 with a level difference from the travel path. Workers can come and go between.

  The gripping machine 23 and the small crusher 24 as dismantling means are placed on the work table 22 of the vehicle protection frame 21 so that the ceiling 3 and the partition wall 4 can be disassembled from the exposed edges 26 thereof. Further, a grab-type attachment such as a fork grab can be attached to the base machine so that the precast concrete plate constituting the ceiling 3 and the partition wall 4 can be grasped and separated from the tunnel 2.

  The small crusher 24 can crush the precast concrete plate or the precast concrete piece of the ceiling 3 or the partition wall 4 separated from the tunnel 2 and pre-cut with a cutter as necessary into concrete glares of an appropriate size. For example, a jaw crusher or a magnetic separator can be combined.

  The belt conveyor 25 conveys the concrete waste discharged from the small crusher 24 as an object to be conveyed, and drives an endless conveyance belt holding means and a motor that rotationally drives the endless conveyance belt. It functions as a transporting mechanism.

  Here, the vehicle protection frame 21 can be advanced along the axis of the tunnel 2 in accordance with the retreat of the exposed edge portion 26 accompanying the disassembly of the ceiling 3 and the partition wall 4 (FIGS. 1 and 2 (b)). ) In the left direction), the travel mechanism 30 is mounted on the legs of the wall bodies 28, 28, and the belt conveyor 25 follows the axis of the tunnel 2 so that the transport direction is the forward direction of the vehicle protective frame 21. And placed in the upper space of the ceiling so as to be placed on the upper surface of the ceiling 3.

  The vehicle protection frame 21 is configured to cover the entire surface of the traveling path 6 by placing traveling wheels constituting the traveling mechanism 30 on the safety passage 31 as can be seen in FIG. 2A. Thus, almost all of the travel path can be used for travel of ordinary vehicles.

  The belt conveyor 25 is configured such that the conveyance source end 12 can be shifted in the forward direction of the vehicle protection frame 21 in accordance with the retreat of the exposed edge 26 accompanying the disassembly of the ceiling 3 and the partition 4. deep. Specifically, the belt conveyor 25 is composed of a plurality of belt conveyors, and each belt conveyor 25 is removed one by one from the side of the conveying source end 12 as the dismantling operation proceeds. If the belt conveyor located at the transport source end 12 is a telescopic belt conveyor, and the belt conveyor is shrunk in accordance with the progress of the dismantling operation, and if the shrinkage cannot be handled, the second The belt conveyor may be removed, and the telescopic belt conveyor positioned at the transfer source end 12 may be moved to that position and operated to be in the extended state.

  On the other hand, as can be clearly seen in FIG. 1, a transshipment area 9 is provided on the site outside the tunnel of the tunnel 8 located in the forward direction of the vehicle protection frame 21 among the tunnels of the tunnel 2 so as to be lateral to the tunnel. The conveyor belt 25 is configured so that the transport object 13 transported through the space above the ceiling 3 can be put into a dump truck 10 serving as a transport vehicle standing by in the transshipment area 9 and the transport tip 13 is placed in the transshipment area 9. Is positioned.

  In addition, at the wellhead 8, a wellhead portion 11 made of reinforced concrete is constructed outside the tunnel so as to surround the exit side space of the tunnel 2, and the space above the ceiling 3 is a duct formed in the wellhead portion 11. However, since the cross-flow ventilation system is not adopted as ventilation in the tunnel, ventilation-related equipment for that purpose is not necessary.

  Therefore, it is desirable that the belt conveyor 25 is extended to the transshipment area 9 by using an existing duct in the wellhead part 11. However, in some cases, a passage through which the belt conveyor 25 is disposed is provided in the wellhead part 11. It may be newly formed or a part of the well opening 11 may be removed to secure a space for arranging the belt conveyor 25.

  In order to remove the ceiling 3 and the partition wall 4 using the ceiling removal system 1 in the tunnel according to the present embodiment, first, the vehicle travels between the traveling road by surrounding the traveling road 6 provided in the tunnel 2. A vehicle protection frame 21 is arranged in the tunnel 2 so that the space 7 is formed.

  In order to install the vehicle protection frame 21, the gripping machine 23 and the small crusher 24 are placed on the work table 22 in advance outside the tunnel 2, and then the traveling mechanism 30 is operated to operate the vehicle protection frame 21. Is allowed to enter the tunnel 2.

  On the other hand, the belt conveyor 25 is placed on the upper surface of the ceiling 3 in parallel with the installation of the vehicle protection frame 21. However, when installing the belt conveyor 25, its weight and the loading load of the object to be conveyed are taken into consideration. However, the ceiling 3 is reinforced as necessary.

  Next, the ceiling 3 and the partition wall 4 in the tunnel 2 are disassembled from the exposed edge portion 26 using the gripper 23 and the small crusher 24 placed on the work table 22.

  Specifically, the precast concrete plates constituting the ceiling 3 and the partition wall 4 are grasped by the grasping machine 23, separated from the tunnel 2 and temporarily placed on the work table 22, and then appropriately used by a concrete cutter as necessary. After that, the precast concrete plate or concrete piece was put into a small crusher 24 to be crushed into a concrete gravel shape, and the reinforcing bars and hardware were previously removed with a magnetic separator and then crushed. The concrete waste is sent to the conveyance source end 12 of the belt conveyor 25.

  Here, since the ceiling 3 is extended to the entire tunnel 2 because it is before the start of removal, the ceiling 3 has been dismantled in some tunnel sections, and the edge of the ceiling 3 is exposed at the end of the section. However, if it is desired to start disassembly newly from another location, the ceiling 3 is appropriately disassembled at a desired start position to expose the edge of the ceiling and above the vehicle protection frame 21. A work space for dismantling should be secured.

  The concrete glass loaded on the conveying end 12 of the belt conveyor 25 is conveyed by the belt conveyor toward the wellhead 8 through the space above the ceiling 3 as an object to be conveyed. When dismantling from the exposed edge 26, as the dismantling operation proceeds, the exposed edge 26 of the ceiling 3 and the partition wall 4 retreats as shown in FIG. Is moved forward, and the conveyance source end 12 of the belt conveyor 25 is shifted in the forward direction of the vehicle protection frame 21.

  The forward movement of the vehicle protection frame 21 may be performed continuously in consideration of the work range of the gripper 23 and the small crusher 24, or may be repeatedly stopped and traveled.

  Next, the conveyance object conveyed by the belt conveyor 25 is thrown into the dump truck 10 which waits in the transshipment area 9 provided in the site outside the tunnel at the pit 8.

  What is necessary is just to convey the conveyance target object transshipped by the dump truck 10 to a regeneration factory or a waste disposal site suitably.

  As described above, according to the ceiling removal system 1 and the method in the tunnel according to the present embodiment, the transport object is not transferred to the transport vehicle immediately after the dismantling or at the disassembled place, but the ceiling 3 In order to transport the object to be transported, after being transported by the belt conveyor 25 once through the upper space, it is transported to the dump truck 10 waiting in the transshipment area 9 provided on the site outside the tunnel at the wellhead 8. It is no longer necessary to occupy a part of the traveling path 6, and the traveling path 6 of the tunnel 2 can be used almost entirely.

  In the present embodiment, the gripping machine 23 and the small crusher 24 are the basic components of the dismantling means, and a concrete cutter is also adopted as necessary. However, what is selected as the dismantling means is arbitrary, and concrete A crusher (large crusher) or the like can also be employed as appropriate.

  Further, in the present embodiment, the belt conveyor 25 as the conveying means is placed on the upper surface of the ceiling 3, but the conveying means of the present invention is configured to be able to convey the object to be conveyed through the space above the ceiling. However, instead of the above-described configuration, the belt conveyor 25 may be suspended from the top of the tunnel 2. Specifically, a configuration in which the belt conveyor 25 is suspended with a chain from the top of the tunnel 2 every about 3 m, for example, and the suspended height can be appropriately adjusted with a turnbuckle.

  Moreover, a conveyance means is not limited to the belt conveyor 25, It can replace with this belt conveyor and can employ | adopt a Teruha crane or a truck.

  Here, in the case of the Telha crane, the guide rail is configured to extend along the tunnel axis on the inner surface of the top of the tunnel 2, and in the case of the trolley, the ceiling 3 is formed so as to extend the track along the tunnel axis. However, in the latter case, like the belt conveyor 25, the ceiling 3 is reinforced as necessary.

  Moreover, in this embodiment, although the transshipment area 9 provided in the site outside the tunnel of the wellhead 8 is the transshipment area of the present invention, instead of this, as shown in FIG. The emergency parking zone 41 may be used as a transshipment area.

  In this case, an opening 42 is formed in the ceiling 3 at a position above the emergency parking zone 41, a hopper 43 is fitted into the opening, and a chute 44 is attached to the discharge side. A belt conveyor 45 for lateral pulling may be installed between the belt 43 and the belt 43.

  In such a configuration, the object to be transported that has been transported by the belt conveyor 25 is transferred to the belt conveyor 45 at the transport tip 13 and then transported in the lateral direction, via the hopper 43 and the chute 44. At 41, the dump truck 10 is put on standby.

  According to such a configuration, while the dump truck 10 is appropriately decelerated according to the normal driving method, the dump truck 10 enters the emergency parking zone 41 from the driving lane of the driving path 6 and stops, and after the transshipment is completed, the dump truck 10 is also appropriately set according to the normal driving method. While accelerating, the vehicle can enter the travel lane of the travel path 6 from the emergency parking zone 41, and therefore there is no possibility that the movement of the dump truck 10 hinders the travel of the general vehicle in a series of steps of stopping, loading and departure.

  Further, in the present embodiment and the modification thereof, the object to be transported that has been transported by the belt conveyor 25 is directly put into the dump truck 10 that is placed on standby in the transshipment area 9 or the emergency parking zone 41. In addition, a temporary storage tank may be installed in these transshipment areas, put into the temporary storage tank, and transferred to the dump truck 10.

  FIG. 5 shows an example in which the transshipment area is an emergency parking zone 41 and a temporary storage tank 51 is installed in the emergency parking zone. The temporary storage tank 51 may be disposed so as to be directly below the hopper 43 and the chute 44.

  Here, if the temporary storage tank 51 is further sealed, and the lower end of the chute 44 is connected to the sealed temporary storage tank in an airtight manner, and a vacuum vehicle as a transfer vehicle can be connected in communication, Since the object is transferred from the temporary storage tank 51 to the vacuum vehicle by suction, there is no possibility of diffusing dust in the tunnel 2.

[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. 6 shows the ceiling removal system in the tunnel according to the present embodiment in detail around the dismantling place.

  As shown in the figure, the ceiling removal system in the tunnel according to the present embodiment surrounds the traveling path 6 provided in the tunnel 2 so that a vehicle traveling space 7 is formed between the traveling path 6 and the traveling path 6. A vehicle protection frame 21 disposed in the tunnel 2, a gripping machine and a small crusher 24 as dismantling means placed on a work table 22 provided on the top surface of the vehicle protection frame, and the dismantling means A pressure-feed pump 61 for transporting the transport object and a transport pipe 62 connected to the pressure-feed pump. The gripping machine is the same as the gripping machine 23 described in the first embodiment, but is omitted in FIG. 6 for convenience of drawing.

  The pressure pump 61 is placed on the work table 22 in the same manner as the gripping machine and the small crusher 24. The concrete waste discharged from the small crusher 24 is slurried and discharged to the transport pipe 62 as a conveyance object. At the same time, the transport pipe 62 is placed in the upper space of the ceiling so as to be placed on the upper surface of the ceiling 3 along the axis of the tunnel 2 so that the transport direction is the forward direction of the vehicle protection frame 21. In addition, the pressure pump 61 and the transport pipe 62 function as a transport unit that transports the slurry-like transport object through the space above the ceiling 3.

  In order to facilitate slurrying, a secondary crusher (not shown) may be provided between the small crusher 24 and the pressure pump 61 so as to crush the concrete glass more finely.

  On the other hand, as in the first embodiment, a transshipment area 9 is provided on the site outside the tunnel of the tunnel 8 located in the forward direction of the vehicle protection frame 21 among the tunnels of the tunnel 2 so as to be on the side of the tunnel. In addition, the transport pipe 62 is configured so that the transport object transported through the space above the ceiling 3 can be discharged to a slurry transport vehicle waiting in the transshipment area 9.

  The transport pipe 62 is preferably extended to the transshipment area 9 by using an existing duct in the wellhead part 11, but in some cases, a passage through which the transport pipe 62 is disposed is newly added to the wellhead part 11. It may be formed or a part of the wellhead part 11 may be removed to secure a space for arranging the transport pipe 62.

  In order to remove the ceiling 3 and the partition wall 4 by using the ceiling removal system in the tunnel according to the present embodiment, first, the vehicle traveling space is surrounded by the traveling path 6 provided in the tunnel 2 so as to surround the traveling path 6. 7 is formed in the tunnel 2 in the same manner as in the first embodiment.

  On the other hand, the transport pipe 62 is placed on the upper surface of the ceiling 3 in parallel with the arrangement work of the vehicle protection frame 21, but the transport pipe 62 is lighter than the precast concrete plate constituting the ceiling 3 and the partition wall 4. Therefore, unlike the first embodiment, it is not necessary to reinforce the ceiling 3, or simple reinforcement is sufficient.

  Next, the ceiling 3 and the partition wall 4 in the tunnel 2 are removed from the exposed edge portion 26 in the same procedure as described in the first embodiment by using the gripper and the small crusher 24 placed on the work table 22. Dismantle.

  The concrete waste discharged from the small crusher 24 is slurried by the pressure pump 61 and then discharged to the transport pipe 62 as an object to be transported, and further pumped toward the wellhead 8 by the transport pipe. When the partition wall 4 is disassembled from the exposed edge portion 26, as the disassembly operation proceeds, the exposed edge portion 26 of the ceiling 3 and the partition wall 4 moves backward as shown in FIG. While the vehicle protection frame 21 is moved forward, the length of the transport pipe 62 is appropriately shortened.

  Next, the conveyance object conveyed by the transport pipe 62 is thrown into the slurry transport vehicle 71 waiting in the transshipment area 9 provided in the site outside the tunnel at the wellhead 8 as shown in FIG.

  What is necessary is just to convey the conveyance target object transshipped by the slurry transport vehicle 71 to a regeneration factory or a waste disposal site suitably.

  As described above, according to the ceiling removal system and method in the tunnel according to the present embodiment, the object to be transported is not immediately transferred to the transport vehicle immediately after being disassembled or at the place where the dismantled, but above the ceiling 3. In order to transport the object to be transported, since the transport pipe 62 once transported through the space, the slurry transport vehicle 71 placed in the transshipment area 9 provided on the site outside the tunnel at the wellhead 8 is loaded. It is no longer necessary to occupy a part of the traveling path 6, and the traveling path 6 of the tunnel 2 can be used almost entirely.

  Further, according to the ceiling removal system in the tunnel according to the present embodiment, the relatively heavy pumping pump 61 is installed on the work table 22 of the vehicle protection frame 21 among the pumping pump 61 and the transport pipe 62 that are transporting means. However, since the transport pipe 62 having a relatively small weight is laid on the upper surface of the ceiling 3, unlike the first embodiment, it is not necessary to reinforce the ceiling 3, or simple reinforcement is sufficient, Construction can be performed in a shorter construction period.

  In this embodiment, the gripping machine and the small crusher 24 are the basic components of the dismantling means, and a concrete cutter is also adopted as necessary. However, what is selected as the dismantling means is arbitrary, and concrete crushing A machine (large crusher) or the like can also be employed as appropriate.

  In this embodiment, the transport pipe 62 is placed on the upper surface of the ceiling 3. However, the transport means of the present invention only needs to be configured so that the transport object can be transported through the space above the ceiling. Instead of the above configuration, the transport pipe 62 may be suspended from the top of the tunnel 2.

  Although not particularly mentioned in the present embodiment, when the conveyance capacity is insufficient with only the pressure pump 61 because the conveyance distance is long, a relay pressure pump may be appropriately disposed on the top surface of the ceiling 3, for example.

  Moreover, in this embodiment, although the concrete waste discharged | emitted from the small crusher 24 was made into a slurry with the pressure feed pump 61, it was conveyed, that is, wet conveyance was adopted, but it replaced with this and was discharged | emitted from the small crusher 24. It is also possible to adopt so-called dry conveyance, in which the concrete waste is not made into a slurry, but is directly discharged from the pressure pump 61 and conveyed via the transport pipe 62.

  Moreover, in this embodiment, although the transshipment area 9 provided in the site outside the tunnel of the wellhead 8 was used as the transshipment area of the present invention, instead of this, as shown in FIG. The emergency parking zone 41 may be used as a transshipment area.

  In this case, an opening 82 is formed in the ceiling 3 at a position above the emergency parking zone 41, the transport pipe 62 is penetrated through the opening, and the transport pipe 62 is bent vertically downward at that location, and the discharge end portion is It is good to comprise so that it can connect to the slurry transport vehicle 71 as a conveyance vehicle waiting by the emergency parking belt 41 in communication.

  According to such a configuration, the slurry-conveyed object can be directly transferred to the slurry transport vehicle 71 that is a transport vehicle, and the movement of the slurry transport vehicle 71 is the same as that of the general vehicle as described in the first embodiment. There is no risk of hindering driving.

  In addition, when transshipping a conveyance target object to the slurry transport vehicle 71, it may replace with the above-mentioned structure which bends the transport pipe 62, and may employ | adopt the structure of FIG.

  Further, in the present embodiment, the conveying means of the present invention is configured by the pressure feed pump 61 and the transport pipe 62, but a suction pump can be employed instead of the pressure feed pump 61. For example, FIG. ), A storage tank 91 capable of temporarily storing the concrete waste discharged from the small crusher 24 is placed on the work table 22 of the vehicle protection frame 21, and the transport pipe 62 is installed in the internal space of the storage tank. As shown in FIG. 9 (b), an opening 92 is formed in the ceiling 3 at a position above the emergency parking belt 41, and the transport pipe 62 is penetrated through the opening while connecting the transporting end portion in communication. Thus, the transport pipe 62 can be bent vertically downward, and the transport tip can be configured to communicate with the vacuum vehicle 93 waiting in the emergency parking zone 41.

  In this case, the vacuum wheel 93 functions as a suction pump and also functions as a transport vehicle that carries the transport target out of the tunnel. Also in this modification, the object to be transported can be directly transferred to the vacuum vehicle 93 that is a transport vehicle, and the movement of the vacuum vehicle 93 does not hinder the traveling of the general vehicle.

DESCRIPTION OF SYMBOLS 1 Ceiling removal system in tunnel 2 Tunnel 3 Ceiling 4 Bulkhead 6 Runway 7 Vehicle travel space 8 Wellhead 9 Transshipment area 10 Dump truck (conveyance vehicle)
21 Vehicle protection frame 22 Work table 23 Grab machine (dismantling means)
24 Small crusher (dismantling means)
25 Belt conveyor (conveying means)
26 Exposed Edge 41 Emergency Parking Zone (Transshipment Area)
61 Pressure pump 62 Transport pipe 71 Slurry transport vehicle (conveyance vehicle)
93 Vacuum vehicles (suction pumps, transport vehicles)

Claims (6)

In the method of removing the ceiling in the tunnel, the ceiling disposed in the tunnel is removed so that the internal space of the tunnel is partitioned vertically.
A vehicle protection frame is arranged in the tunnel so that a vehicle traveling space is formed between the traveling road by covering or surrounding the traveling road provided in the tunnel,
Dismantling the ceiling from its exposed edge using a workbench provided on the top of the top of the vehicle protective frame;
The vehicle protection frame is moved forward in accordance with the retraction of the exposed edge part during the dismantling process, and the conveyance object generated by the dismantling process is directed toward the advancing direction of the vehicle protection frame and in the inner space of the tunnel. among them, was conveyed to the transshipment area through the space extending between the ceiling and the top of the tunnel, a ceiling removing method reloading the transport vehicle in the transshipment area,
The transshipment area is provided on the side of the wellhead located in the forward direction of the vehicle protection frame in the tunnel wellhead and outside the tunnel, or the traveling path located in the forward direction of the vehicle protection frame A method for removing a ceiling in a tunnel, characterized in that the method is provided in a laterally extending portion of the tunnel. In the ceiling removal system in the tunnel for removing the ceiling arranged in the tunnel so that the internal space of the tunnel is partitioned vertically,
A vehicle protection frame disposed in the tunnel so as to form a vehicle travel space between the travel path by covering or surrounding the travel path provided in the tunnel;
Dismantling means placed on a workbench provided on the top surface of the vehicle protective frame and configured to dismantle the ceiling from its exposed edge;
Transport means for transporting a transport object generated by the dismantling means,
The vehicle protection frame is configured to be able to advance in accordance with the retraction of the exposed edge of the ceiling accompanying the dismantling of the ceiling, and the transport means is configured to move the object to be transported in the advancing direction of the vehicle protection frame. A ceiling removal system in a tunnel, wherein the ceiling removal system is configured to be transported through a space extending between the top of the tunnel and the ceiling among the internal space of the tunnel. The ceiling removal system in a tunnel according to claim 2, wherein the transport unit includes a holding unit that holds the transport target and a drive mechanism that drives the holding unit. The ceiling removal system in a tunnel according to claim 2, wherein the transport means includes a transport pipe for transporting the transport object and a pressure feed pump or a suction pump connected to the transport pipe. The suction pump is located on the side of a wellhead located in the forward direction of the vehicle protection frame in the tunnel wellhead or in the forward direction of the vehicle protection frame provided outside the tunnel. The ceiling removal system in the tunnel of Claim 4 installed in the form of the vacuum vehicle which waits in the transshipment area provided in the side extension part of the said travel path . Of the tunnel wellhead, the side of the wellhead located in the forward direction of the vehicle protection frame and on the side of the travel path located in the forward direction of the vehicle protection frame or the transshipment area provided outside the tunnel The tunnel according to any one of claims 2 to 4, wherein a sealed temporary storage tank is installed in a transshipment area provided in a direction extending portion , and the sealed temporary storage tank is configured so that a vacuum vehicle can be connected in communication. Ceiling removal system inside.

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