JP7157693B2 - Tunnel ceiling surface cleaning method and cleaning device - Google Patents

Description

Article 30, Paragraph 2 of the Patent Act applies ・DVD version of 2018 JSCE National Convention Proceedings (issued on August 1, 2018, published by JSCE) ・2018 JSCE National Convention, 73rd year Next academic lecture (August 29-31, 2018, held at Hokkaido University Sapporo Campus) ・Okumura Gumi Technical Research Annual Report No. 44 (published by Okumura Gumi Co., Ltd. on September 1, 2018)

TECHNICAL FIELD The present invention relates to a tunnel ceiling surface cleaning method and cleaning apparatus for cleaning the ceiling surface of a box culvert type tunnel with a dry cleaner.

For example, many box culvert tunnels have been constructed on highways and other general roads, and many of them have been in service for 30 years or more. For this reason, various repair work including prevention of spalling of concrete pieces is being carried out on old tunnels. For example, when performing surface treatment work (surface preparation work) by grinding the inner wall of a tunnel as this repair work, it is common to carry out the work while keeping at least one lane of the road open and restricting the use of the road. Because it is done systematically, it is necessary to work efficiently and speedily within a limited time.

Therefore, for example, Patent Document 1 proposes a tunnel ceiling surface cleaning apparatus capable of efficiently and speedily cleaning the ceiling surface of a box culvert type tunnel. This tunnel ceiling surface cleaning apparatus includes an elevating mechanism, a dry abrasive cleaner installed on the elevating mechanism so as to be movable in the longitudinal direction (extending direction of the tunnel) and in the width direction (lateral direction), and the elevating mechanism. It is configured including outriggers for adjusting the height of the mechanism, and performs the required cleaning work while being mounted on the transport vehicle. Specifically, the transport vehicle moving in the tunnel is stopped at a predetermined cleaning position, and the dry sander of the tunnel ceiling surface cleaning device mounted on the transport vehicle is moved in the front-rear and width directions. The operation of cleaning the tunnel ceiling surface with the dry cleaner is repeated while being moved (in the lateral direction).

JP 2017-040103 A

However, the use of the tunnel ceiling surface cleaning device proposed in Patent Document 1 is limited to relatively large box culvert-type tunnels into which transport vehicles can be brought in. For example, transport vehicles such as drainage ditches run. There is a problem that it cannot be used for relatively small box culvert type tunnels that cannot be used.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and its object is to efficiently and speedily grind the ceiling surface even in a relatively small box culvert-type tunnel through which a transportation vehicle cannot pass. The object of the present invention is to provide a tunnel ceiling surface cleaning method and a cleaning device.

The method of the present invention is a tunnel ceiling surface cleaning method using a tunnel ceiling surface cleaning device for cleaning the ceiling surface of a box culvert type tunnel that is too large for a transport vehicle to pass through with a dry type cleaning machine. The tunnel ceiling surface cleaning device includes a base frame portion movable in the tunnel, and a moving rail portion attached to an upper surface portion of the base frame portion. and a traveler attached to the lower end of the base frame portion to move the base frame portion along the bottom surface of the tunnel in the extending direction of the tunnel. and a moving member, the base frame portion moving within a predetermined movement span corresponding to a movable range in the extending direction of the tunnel along the moving rail portion of the dry abrasive cleaner. a fixing step of fixing, and moving the dry abrasive cleaner along the moving rail portion of the base frame portion fixed in the fixing step in the direction in which the tunnel extends and in the lateral direction perpendicular to the extending direction of the tunnel; and a cleaning step of cleaning the tunnel ceiling surface is repeated for each movement span of the base frame portion, thereby cleaning and cleaning the tunnel ceiling surface. The movement in the extension direction of the tunnel is performed by guiding the travel movement member along the travel guide rail member laid in the extension direction of the tunnel at the bottom part of the tunnel. The travel guide rail member is constructed by connecting a plurality of unit rail members in the extending direction of the tunnel. The base frame portion is moved along the travel guide rail member by repeating the work of connecting the unit rail members in front of each other, and the two adjacent unit rail members are connected to each other. The method is such that the work is carried out at locations where laterally mounted track guides are arranged at intervals in the direction of extension of the tunnel .

Further, the travel guide rail member may be composed of channel steel laid with an opening facing upward, and the travel movement member may be composed of a chill tank that moves along the travel guide rail member. .

Further, the travel guide rail member may be formed of angle iron laid with the corner portion as the top portion, and the travel movement member may be formed of a door roller member.

In addition, the base frame portion includes a jack member that can extend laterally. When the pressing surface of the jack member is pressed against the inner surface of the side wall of the tunnel, the reaction force received from the inner surface of the side wall moves the base frame portion. may be fixed.

The apparatus of the present invention is used for the tunnel ceiling surface cleaning method described above, and is used for cleaning the ceiling surface of a box culvert type tunnel that is too large for a transport vehicle to be carried in, using a dry abrasive cleaner. A cleaning and cleaning apparatus comprising: a base frame portion movable in the tunnel; and a moving rail portion attached to an upper surface portion of the base frame portion along which the tunnel extends and a lateral direction perpendicular thereto. and a travel moving member attached to the lower end of the base frame portion for moving the base frame portion along the bottom surface of the tunnel in the extending direction of the tunnel. and the base frame portion is provided with a jack member that can extend in a lateral direction perpendicular to the extending direction of the tunnel.

Here, the base frame portion may include a height adjustment mechanism capable of adjusting the height from the travel movement member.

According to the present invention, since the dry sander can be moved in a tunnel without using a transport vehicle, even in a relatively small box culvert-type tunnel that a transport vehicle cannot pass through, the ceiling surface can be efficiently cleaned. It can be cleaned well and speedily.

1 is a side view of the tunnel ceiling surface cleaning device according to Embodiment 1 of the present invention; FIG. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1; FIG. 2 is a cross-sectional view taken along line BB of FIG. 1; 1 is a plan view of a tunnel ceiling surface cleaning device according to Embodiment 1 of the present invention; FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the dry-type cleaner of the tunnel ceiling surface cleaning apparatus which concerns on Embodiment 1 of this invention, (a) is a side view, (b) is a rear view, (c) is a top view. FIG. 3 is an enlarged detailed view of a C portion of FIG. 2; FIG. 7 is a diagram (plan view) in the direction of arrow D in FIG. 6 ; FIG. 5 is a side view of a tunnel ceiling surface cleaning device according to Embodiment 2 of the present invention; FIG. 9 is a cross-sectional view taken along line EE of FIG. 8; FIG. 10 is an enlarged detail view of the F portion of FIG. 9; FIG. 11 is a view (plan view) in the direction of arrow G in FIG. 10; 4 is a flow chart showing the procedure of cleaning work by the tunnel ceiling surface cleaning method according to the present invention.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

[Tunnel ceiling surface cleaning device]
<Embodiment 1>
First, the configuration of a tunnel ceiling surface cleaning apparatus according to Embodiment 1 of the present invention will be described below with reference to FIGS. 1 to 7. FIG.

1 is a side view of a tunnel ceiling surface cleaning apparatus according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view along line AA of FIG. 1, FIG. 3 is a cross-sectional view along line BB of FIG. 1, and FIG. 5 is a plan view of the tunnel ceiling surface cleaning apparatus, and FIG. 5 is a diagram showing a dry type cleaner of the tunnel ceiling surface cleaning apparatus, in which (a) is a side view, (b) is a rear view, and (c) ) is a plan view, FIG. 6 is an enlarged detailed view of part C in FIG. 2, and FIG. 7 is a view (plan view) in the direction of arrow D in FIG.

A tunnel ceiling surface cleaning apparatus (hereinafter referred to simply as "cleaning apparatus") 1 according to the present embodiment is used to clean the ceiling of a relatively small box culvert-type tunnel 50 such as a drainage ditch into which a transport vehicle cannot be carried. A device for cleaning the surface 50a (see FIGS. 1-3).

The cleaning and cleaning apparatus 1 according to the present embodiment is basically composed of a base frame portion (mounting frame) 2 that can move in a box culvert-type tunnel 50 and a moving A dry abrasive cleaner 4 movable along the rail portion 3 in the direction in which the tunnel 50 extends (hereinafter referred to as the “front-rear direction”) and in the lateral direction perpendicular thereto; and a door roller member 5 which is a travel movement member for moving the base frame portion 2 in the front-rear direction (left-right direction in FIG. 1) along the bottom surface 50b of the tunnel 50 (see FIGS. 1 to 3). ing. As shown in FIGS. 1 to 3, hydraulic jacks 6 are provided on the left and right sides of the upper end of the base frame portion 2 as jack members that can extend in the lateral direction. constitutes fixing means for fixing the base frame portion 2 moving in the front-rear direction at a predetermined position (working position).

As shown in FIGS. 1 to 3, the base frame portion 2 is constructed as a rectangular parallelepiped hollow frame made of channel steel or the like. Specifically, an upper frame 2A (see FIG. 4) and a lower frame 2B, which form a rectangular frame structure, are connected by three vertically erected pillars (see FIG. 1) 2a on both left and right sides thereof. is configured as

Here, as shown in FIG. 1, the three left and right struts 2a are arranged at the left and right sides of the base frame portion 2 at the front ends (the left ends in FIG. 1) and the rear ends of the upper frame 2A and the lower frame 2B. They are arranged at the end (the right end in FIG. 1) and the intermediate portion in the front-rear direction. In the base frame portion 2, the truss structure is configured by connecting the three pillars 2a erected on the left and right of the base frame portion 2 with a total of four reinforcing members (braces) 2b arranged obliquely. The entire base frame portion 2 is reinforced by this truss structure.

In the base frame portion 2 configured as described above, the base frame portion 2 is fixed to the front and rear ends of the upper left and right near the upper frame body 2A to prevent its movement. The hydraulic jacks 6 are arranged respectively. Here, each hydraulic jack 6 is operated by hydraulic pressure supplied from two left and right manual hydraulic pumps 7 which are installed horizontally at the lower front end of the base frame portion 2 . Specifically, when the lever 7a of the manual hydraulic pump 7 is manually operated, each manual hydraulic pump 7 operates to generate hydraulic pressure, which is supplied to each hydraulic jack 6 through a hydraulic hose (not shown). Then, the rod of each hydraulic jack 6 protrudes outward and presses the inner surface 50c of the side wall of the tunnel 50. As shown in FIG. Therefore, as will be described later, the base frame portion 2 moving in the longitudinal direction in the tunnel 50 is fixed by receiving the reaction force from the side wall inner surface 50c of the tunnel 50, and the movement of the base frame portion 2 is locked.

Further, the moving rail portion 3 is attached to the upper frame 2A of the base frame portion 2. As shown in FIG. Here, the configuration of the moving rail portion 3 will be described below with reference to FIG.

As shown in FIG. 4, the moving rail portion 3 includes three lateral rail members 8 for moving the dry sander 4 along the lateral direction (horizontal direction) Y, and the dry sander 4 moving forward and backward. It includes a pair of left and right front-to-rear rail members 9 that are moved along the direction X. As shown in FIG. Here, the three left-right direction rail members 8 are installed in parallel at appropriate intervals in the front-rear direction between two left and right long side portions of the upper frame 2A of the base frame portion 2 .

A traversing frame portion 10 formed by laying a pair of left and right front-rear rail members 9 is placed on the left-right rail member 8 so as to be movable along the lateral direction Y. As shown in FIG. A dry abrasive cleaner 4 is mounted on the transverse frame portion 10 so as to be able to travel in the longitudinal direction X along the longitudinal rail member 9 . Here, the traversing frame portion 10 includes a plurality of traveling wheels 11 (see FIG. 2) for traveling and moving the traversing frame portion 10 in the lateral direction Y along the left-right direction rail member 8 and a traveling drive device such as a motor. 12 (see FIGS. 1-3) are provided. In addition, as shown in FIG. 1, the length of the transverse frame portion 10 in the front-rear direction is set longer than the length of the base frame portion 2 in the front-rear direction. It protrudes (overhangs) by a predetermined length from the front and rear ends of the base frame portion 2 .

Next, the construction of the dry abrasive cleaner 4 will be described below with reference to FIG.

As shown in FIG. 5, the dry abrasive cleaner 4 mounted on the traverse frame portion 10 so as to be able to travel in the front-rear direction X is located between the travel base portion 13 and the travel base portion 13. An intermediate plate portion 15 is arranged above the traveling base portion 13 with the load cell 14 interposed therebetween, and an air cylinder 16 is interposed between the intermediate plate portion 15 and is arranged further above the intermediate plate portion 15. It comprises a cleaner mounting plate 17 and a cleaner main body 18 attached to and supported by the cleaner mounting plate 17 .

Guide shafts 19 are erected vertically from the four corners of the traveling base 13. A grinder mounting plate 17 is inserted through and supported by these guide shafts 19 via linear bushes 20 so as to be vertically movable. ing. Therefore, the cleaner mounting plate 17 and the cleaner main body 18 mounted thereon are guided by the four guide shafts 19 as the air cylinder 16 expands and contracts, and can move up and down in a stable state. can be done.

Here, the cleaner main body 18 is capable of forming a flat working surface by cleaning a concrete floor surface or the like, and is used by appropriately improving various known cleaners. be able to. As such a cleaner, for example, the product name "New Tornado" (manufactured by CRT Co., Ltd.) can be preferably used. The cleaner main body 18 includes a cutting disk 21, a suction dust collector 22, a drive motor 23, and the like. Around the cutting disk 21, an anti-scattering member (not shown) made of a flexible spatula member, a brush-like member, or the like is arranged. This anti-scattering member effectively prevents the scattering of dust generated when the cutting disc 21 is pressed against the ceiling surface 50a of the tunnel 50 with a predetermined force for cleaning, while the cutting disc 21 is facing upward. effectively prevented.

Rotatable traveling wheels 24 are attached to a total of four locations on the front, rear, left, and right of the traveling base portion 13 of the dry cleaner 4 . A travel drive device 25 such as a motor is attached to the front end portion of the travel base portion 13 .

Here, the traveling base portion 13 and the cleaner main body 18 installed on the traveling base portion 13 so as to be able to move up and down are composed of a pair of left and right front-to-rear rails laid parallel to each other along the front-to-rear direction on the upper surface of the traversing frame portion 10 . The traveling base portion 13 and the cleaner main body 18 are mounted on the member 9 via four traveling wheels 24 so as to be able to travel. It can run and move in the front-back direction X along. Further, by driving the traveling drive device 12 provided on the traverse frame portion 10, the traverse frame portion 10 is moved in the lateral direction Y along the left-right direction rail member 8 together with the dry type cleaner 4 mounted thereon. Can be moved. Therefore, the dry abrasive cleaner 4 can freely travel in either the front-rear direction X or the left-right direction Y. As shown in FIG.

By the way, the air cylinder 16 is interposed between the intermediate plate portion 15 of the dry cleaner 4 and the cleaner mounting plate 17. In this embodiment, as shown in FIG. , air cylinders 16 are arranged at the front and rear portions of the cleaner mounting plate 17, respectively.

Next, a traveling member for moving the base frame portion 2 and the dry cleaner 4 mounted thereon along the bottom surface 50b of the tunnel 50 in the front-rear direction will be described.

In the present embodiment, door roller members 5 attached to the lower end portion of the base frame portion 2 at four locations, front and rear, left and right, are used as traveling members. The door roller member 5 is configured by rotatably supporting the door roller 5a. By rolling on the travel guide rail member 26 , the base frame portion 2 and the dry abrasive cleaner 4 mounted thereon can move forward and backward along the travel guide rail member 26 .

In this embodiment, an angle steel (angle steel) is used as the traveling guide rail member 26, and an angle steel of a predetermined length (3 m in this embodiment) is used as the unit rail member 26a, and a plurality of By connecting the ends of the unit rail members 26a, a single travel guide rail member 26 long in the longitudinal direction (front-rear direction) is constructed. Here, a structure for laying the travel guide rail member 26 on the bottom surface 50b of the tunnel 50 will be described with reference to FIGS. 1 to 3, 6 and 7. FIG.

As shown in FIGS. 1 to 3, a plurality of track guides 27 corresponding to railway sleepers are attached along the lateral direction at appropriate intervals (3 m intervals in this embodiment) on the bottom surface 50b of the tunnel 50. ing. Here, for each track guide 27, for example, angle steel having an L-shaped cross section may be used. are fixed to the bottom surface 50b of the tunnel 50 by the respective.

As shown in FIG. 6, notches 27A (only one is shown in FIG. 6) are provided at two locations on the left and right of the track guide 27 (two locations corresponding to the door roller members 5 provided on the base frame portion 2). formed respectively. Flanges 27b are obliquely attached by welding or the like to the front and back of the portions of the track guide 27 where the notches 27A are formed.

In order to connect two unit rail members 26a made of angle steel, each unit rail member 26a is made to face the notch 27A of the track guide 27 from below with its corner portion as the top, and the two unit rail members 26a to be connected are connected. The ends of the book unit rail members 26a are butted against each other. From this state, the two adjacent unit rail members 26a are connected by screwing the bolts 28, which are inserted through the respective flanges 27b of the track guide 27, into the respective unit rail members 26a. By performing such connecting work at the locations where the track guides 27 are arranged, a pair of left and right travel guide rail members 26 made of angle steel are laid parallel to each other along the front-rear direction on the bottom surface 50b of the tunnel 50. Along these travel guide rail members 26, the base frame portion 2 can travel forward and backward together with the dry abrasive cleaner 4. As shown in FIG.

By the way, in this embodiment, as shown in FIG. Like the base frame portion 2, the truck 30 can be moved along the travel guide rail member 26 by door rollers 31 provided at four locations on the front, rear, left, and right of the lower portion thereof. 33 is installed. Here, the dust discharged from the dust collector 22 provided in the dry abrasive cleaner 4 is collected to the dust collector 32 via the dust collection hose 34 .

By the way, the tunnel 50 in this embodiment is used as a drainage ditch, and is smaller in size than a road tunnel through which vehicles pass. Specifically, the width of the opening of the tunnel 50 is 2.5 m, and the height is 3 m. On the other hand, the width of the base frame portion 2 moving in the tunnel 50 is about 2.1 m, and the length is about 2.6 m.

<Embodiment 2>
Next, the configuration of a tunnel ceiling surface cleaning apparatus according to Embodiment 2 of the present invention will be described below with reference to FIGS. 8 to 11. FIG.

8 is a side view of a tunnel ceiling surface cleaning and cleaning apparatus according to Embodiment 2 of the present invention, FIG. 9 is a sectional view taken along line EE of FIG. 8, FIG. FIG. 10 is a view (plan view) in the direction of arrow G in FIG. 10. In these figures, the same elements as those shown in FIGS. is omitted.

The basic configuration of the cleaning device 1' according to the present embodiment is the same as that of the cleaning device 1 according to the first embodiment, and a journal jack 6' is attached to a jack member as fixing means for the base frame portion 2. , the use of channel steel as the travel guide rail member 26, and the use of the chill tank 5' as the travel movement member. Further, in this embodiment, two carriages 30 and 40 that move together with the base frame portion 2 along the travel guide rail member 26 are connected to the rear of the base frame portion 2 . Here, a dust collector 32 is mounted on one (front) carriage 30 , and a wound cable 41 is mounted on the other (rear) carriage 40 .

In the present embodiment, chill tanks 5 ′ as traveling moving members are attached to a total of four locations on the front, rear, left and right of the lower end portion of the base frame portion 2 . Also in this embodiment, a pair of left and right travel guide rail members 26 are laid in parallel along the longitudinal direction on the bottom surface 50b of the tunnel 50. The travel guide rail members 26 are made of channel steel. (channel steel), and as shown in FIG. 10, this channel steel is laid with the opening face up.

Further, as shown in FIG. 10, two left and right positions (two positions corresponding to the chill tank 5' provided on the base frame portion 2) of the track guide 27 fixed along the lateral direction to the bottom surface 50b of the tunnel 50 are provided with , are formed with rectangular notches 27A (only one is shown in FIG. 10), respectively. Vertically standing flanges 27c are attached by welding or the like to the portions of the track guide 27 where the notches 27A are formed.

The travel guide rail member 26 made of channel steel is constructed by connecting a plurality of unit rail members 26a. Each unit rail member 26a faces the notch 27A with its opening facing upward, and the ends of the two unit rail members 26a to be connected are butted against each other. From this state, the two adjacent unit rail members 26a are connected by screwing the bolts 28, which are inserted through the respective flanges 27c of the track guide 27, into the respective unit rail members 26a. By performing such connecting work at the positions where the track guides 27 are arranged, a pair of left and right traveling guide rail members 26 made of channel steel are arranged parallel to each other along the front-rear direction on the bottom surface 50b of the tunnel 50. As the chill tank 5' moves within these travel guide rail members 26, the base frame portion 2 moves forward and backward along the travel guide rail members 26 together with the dry cleaner 4 and the two carriages 30 and 40. run and move.

[Tunnel ceiling surface cleaning method]
Next, a tunnel ceiling surface cleaning method according to the present invention (hereinafter simply referred to as "cleaning method") will be described using the cleaning apparatus 1 (see FIGS. 1 to 7) according to Embodiment 1. do. Note that the cleaning method using the cleaning device 1' (see FIGS. 8 to 11) according to the second embodiment is also basically the same as the method described below, so the description thereof will be omitted. .

In the cleaning method according to the present invention, the base frame portion 2 is moved in a predetermined movement span SP (see FIG. 1) corresponding to the movable range in the front-rear direction X along the moving rail portion 3 of the dry abrasive cleaner 4. A fixing step of fixing, and moving the dry abrasive cleaner 4 in the front-rear direction X and the lateral direction Y along the moving rail portion 3 of the base frame portion 2 fixed in the fixing step to move the ceiling surface 50a of the tunnel 50. This is a method of polishing and cleaning the ceiling surface 50a of the tunnel 50 by repeating the polishing and cleaning step for each movement span SP of the base frame portion 2. FIG. Incidentally, in this embodiment, the movement span SP is set to 2,590 mm.

Here, the cleaning method according to the present invention will be specifically described with reference to the flow chart shown in FIG. In the following description, description of the carriage 30 (see FIG. 1) connected to the cleaning device 1 is omitted.

That is, FIG. 12 is a flow chart showing the procedure of the cleaning work by the tunnel ceiling surface cleaning method according to the present invention. As shown in the figure, when the cleaning work is started (step S1), first, The cleaning/cleaning device 1 is carried into the tunnel 50 (step S2), and set on the traveling guide rail member 26 laid on the bottom surface 50b of the tunnel 50. As shown in FIG. In this state, wiring and piping are connected (step S3), and the cleaning device 1 is moved to a predetermined working position (step S4). In this case, the cleaning and cleaning device 1 moves in the tunnel 50 along the pair of left and right travel guide rail members 26 while being accurately positioned in the lateral direction. can move smoothly without coming into contact with the side wall inner surface 50c. In this embodiment, the cleaning device 1 is manually moved, but the cleaning device 1 may be self-propelled by a drive source such as a motor.

As described above, when the cleaning device 1 moves to a predetermined working position in the tunnel 50, the lever 7a of the manual hydraulic pump 7 (see FIGS. 1 and 2) installed at the lower front end of the base frame portion 2 is manually operated. to drive the manual hydraulic pump 7. Then, the hydraulic pressure generated by each manual hydraulic pump 7 is sent to a total of four hydraulic jacks 6 (see FIGS. 1 to 3) through hydraulic hoses (not shown). As a result, the rod of each hydraulic jack 6 protrudes outward, and the pressing surface at the tip presses the side wall inner surface 50c of the tunnel 50. Therefore, the reaction force received from the side wall inner surface 50c causes the cleaning device 1 (base frame portion 2) is fixed at a predetermined working position (fixing step: step S5).

When the cleaning device 1 is fixed at a predetermined working position as described above, the dry cleaning device 4 installed on the base frame portion 2 of the cleaning device 1 is driven to perform the required cleaning work. is performed (grinding step: step S6). That is, the air cylinder 16 shown in FIG. The cutting disk 21 is pressed against the ceiling surface 50a of the tunnel 50 with a predetermined force. The air cylinder 16 raises the cleaner main body 18 so that the pressing force of the cutting disk 21 against the ceiling surface 50a of the tunnel 50 detected by the load cell 14 is, for example, 0.3 to 0.9 MPa.

In this state, the driving motor 23 is activated to rotate the cutting disk 21, and the travel driving device 12 shown in FIG. is moved in the front-rear direction X along. Then, the ceiling surface 50a of the tunnel 50 is ground by the rotating cutting disk 21. Since the movable range of the cutting disk 21 is the span (movement span of the cleaning device 1) SP shown in FIG. A ceiling surface 50a of 50 is ground by a predetermined width (the outer diameter of the cutting disk 21) in the longitudinal direction X by the length of the span SP.

Next, the traveling drive device 12 shown in FIGS. 1 to 3 is driven, and the traversing frame portion 10 on which the main body 18 of the cleaner is mounted moves in the lateral direction Y by a predetermined amount along the lateral rail member 8. be forced. Then, from this state, the traveling drive device 25 is driven, and the main body 18 of the cleaner moves along the front-rear rail member 9 of the traversing frame portion 10 in the front-rear direction X in the direction opposite to the previous one. 18 cutting discs 21 grind the ceiling surface 50a of the tunnel 50 with a predetermined width (the outer diameter of the grinding disc 21) in the longitudinal direction X by the length of the span SP. After that, by repeating the same work, the ceiling surface 50a of the tunnel 50 is cleaned over the area of the span SP, and it is determined whether or not this cleaning work has been completed in the area of the span SP. (Step S7).

As a result of the above determination, if the cleaning work has not been completed yet (step S7: No), the cleaning work of step S6 is repeated. Further, when the cleaning work is completed (step S7: Yes), it is determined whether or not the entire range of the ceiling surface 50a of the tunnel 50 has been cleaned (step S8). If the result of this determination is that the entire range of the ceiling surface 50a of the tunnel 50 has not been cleaned (step S8: No), the operations of steps S4 to S7 are repeated. That is, the cleaning device 1 is moved along the traveling guide rail member 26 by the traveling span SP shown in FIG. 1, and the same cleaning operation as described above is performed at the next working position (step S6). In this case, as indicated by the chain line in FIG. A method of moving the cleaning device 1 (base frame portion 2) along the travel guide rail member 26 by repeating the operation of removing and connecting the removed unit rail member 26a to the front of the unit rail member 26a at the front end. may be adopted. By adopting such a method, the quantity of materials can be minimized and the work cost can be kept low.

On the other hand, when the entire range of the ceiling surface 50a of the tunnel 50 has been cleaned (step S8: Yes), the wiring and piping are disconnected (step S9), and the cleaning device 1 is moved out of the tunnel 50. Carry out (step S10), and finish all the cleaning work (step S11).

As described above, according to the cleaning method of the present invention, the dry cleaner 4 can be moved through the tunnel 50 without using a transport vehicle. Even with a relatively small object that cannot be cleaned, the ceiling surface 50a can be efficiently and speedily cleaned.

In the above embodiment, the height of the main body 18 of the cleaner is adjusted only by the air cylinder 16. A height adjusting mechanism capable of adjusting the height from (the door roller member 5 in Embodiment 1 and the chill tank 5' in Embodiment 2) may be provided. The provision of such a height adjustment mechanism enhances versatility by providing flexibility in the size of the tunnel in which cleaning operations can be performed by the apparatus and method of the present invention.

In addition, the application of the present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the technical ideas described in the claims, the specification and the drawings. Of course.

1, 1' Tunnel ceiling surface cleaner 2 Base frame 3 Moving rail 4 Dry cleaner 5 Door roller member (running and moving member)
5' Chill tank (running moving member)
6 hydraulic jack (jack member)
6' journal jack (jack member)
7 Manual hydraulic pump 8 Left-right rail member 9 Back-and-forth movement member 10 Traversing frame 11 Traveling wheel 12 Traveling drive unit 13 Traveling base 14 Load cell 15 Intermediate plate 16 Air cylinder 17 Abrasive cleaner mounting plate 18 Abrasive cleaner body 19 Guide shaft 20 Linear push 21 Cutting disk 22 Suction dust collector 23 Drive motor 24 Traveling wheel 25 Traveling drive device 26 Traveling guide rail member 26a Unit rail member 27 Track guide 28 Bolt 50 Tunnel 50a Tunnel ceiling 50b Tunnel bottom 50c Tunnel side wall inner surface SP Moving span

Claims (7)

A tunnel ceiling surface cleaning method using a tunnel ceiling surface cleaning device for cleaning the ceiling surface of a box culvert type tunnel of a size that a transport vehicle cannot pass through with a dry type cleaning machine,
The tunnel ceiling surface cleaning device,
a base frame portion movable in the tunnel;
the dry abrasive cleaner movable along a moving rail portion attached to the upper surface of the base frame portion in the extending direction of the tunnel and in a lateral direction orthogonal thereto;
a travel moving member attached to the lower end of the base frame portion to move the base frame portion along the bottom surface of the tunnel in the extending direction of the tunnel,
a fixing step of fixing the base frame portion that moves over a predetermined movement span corresponding to a movable range in the extending direction of the tunnel along the moving rail portion of the dry abrasive cleaner; a cleaning step of cleaning the ceiling surface of the tunnel by moving the dry cleaner along the moving rail portion of the base frame portion in the extending direction of the tunnel and in a lateral direction perpendicular thereto; is repeated for each movement span of the base frame to grind and clean the ceiling surface of the tunnel ,
The movement of the base frame portion in the direction in which the tunnel extends is achieved by guiding the travel movement member along a travel guide rail member laid on the bottom portion of the tunnel in the direction in which the tunnel extends. and
The travel guide rail member is constructed by connecting a plurality of unit rail members in the extending direction of the tunnel. By repeating the work of connecting to the front of the unit rail member, the base frame portion is moved along the travel guide rail member,
In addition, the work of connecting two adjacent unit rail members to each other is carried out at a location where track guides are installed laterally at intervals in the extension direction of the tunnel. Abrasive method. 2. The traveling guide rail member is composed of channel steel laid with an opening surface facing upward, and the traveling moving member is composed of a chill tank that moves along the traveling guide rail member. tunnel ceiling surface cleaning method. 2. The tunnel ceiling surface cleaning method according to claim 1 , wherein said traveling guide rail members are constructed of angle steel laid with corners as tops, and said traveling and moving members are constructed of door roller members. The base frame portion includes a jack member that can extend laterally, and the base frame portion is fixed by a reaction force received from the inner surface of the side wall when the pressing surface of the jack member is pressed against the inner surface of the side wall of the tunnel. The tunnel ceiling surface cleaning method according to any one of claims 1 to 3 . Tunnel ceiling surface cleaning for cleaning the ceiling surface of a box culvert type tunnel that is too large for a transport vehicle to be carried in with a dry cleaner. a device,
a base frame portion movable in the tunnel;
the dry abrasive cleaner movable along a moving rail portion attached to the upper surface of the base frame portion in the extending direction of the tunnel and in a lateral direction orthogonal thereto;
a travel moving member attached to the lower end of the base frame portion to move the base frame portion along the bottom surface of the tunnel in the extending direction of the tunnel,
The tunnel ceiling surface cleaning and cleaning apparatus, wherein the base frame portion is provided with a jack member that can extend in a lateral direction perpendicular to the extending direction of the tunnel. 6. The tunnel ceiling surface cleaning/cleaning apparatus according to claim 5 , wherein said base frame portion has a height adjusting mechanism capable of adjusting a height from said traveling moving member. 7. The tunnel ceiling surface cleaning and cleaning apparatus according to claim 5, wherein said jack members are provided on the upper left and right sides near the upper frame body of the front end portion and the rear end portion of said base frame portion .

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