JP3543279B2 - How to clean the slide center - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a method for cleaning a slide center (a formwork for secondary lining concrete of a tunnel).
[0002]
[Prior art]
When the concrete is driven into the tunnel and the secondary lining is performed using the slide centr, after the concrete is hardened, the slide centr is peeled off from the concrete surface and moved to the next concrete placing place.
Then, before the concrete is poured in at the next concrete placing place, a keeling operation is performed to remove the residual concrete mass adhering to the surface of the slide centre.
In addition, an operation of attaching a release agent made of oil or the like to the surface of the slide center so as to easily peel off from the concrete is performed.
On the other hand, the slide center has a predetermined length in the longitudinal direction of the tunnel, and when the slide center is peeled from concrete, there is only a narrow space of 20 cm to 50 cm between the surface of the slide center and concrete.
For this reason, it is not possible to easily carry out the cleaning operation, and it is not possible to apply a release agent, and the worker uses a sprayer to spray the release agent, generally at a rate of 6 m ² per liter.
[0003]
[Problems to be solved by the invention]
For this reason, in the related art, it is conventionally difficult to reliably remove the residual concrete mass adhering to the surface of the slide centre, and in order to spread the release agent over the entire surface of the slide centre, it is necessary to blow unevenly, resulting in excessive application. There was a problem that could not be obtained.
In addition, since the release agent is sprayed by a sprayer, there has been a problem that the mist-like release agent floats in the tunnel and adversely affects the human body.
Furthermore, when there is a reinforcing bar in the thickness of the concrete, the working space becomes narrower and becomes about 10 cm to 15 cm, so that the manual operation using the sprayer cannot be easily performed, and the releasing agent may adhere to the reinforcing bar. If the steel adheres to the reinforcing steel, the adhesion to concrete becomes poor.
On the other hand, if such a cleaning operation and a release agent application operation are to be performed mechanically, it is, of course, possible to reliably perform the cleaning operation and the release agent application operation. It is desirable to be able to perform secondary lining of the tunnel without any trouble when the device is removed from the slide center.
The present invention has been devised in view of the above circumstances, and an object of the present invention is to make it possible to mechanically perform kerane work and application of a release agent mechanically without manual work, and to simplify the apparatus with a slide center. It is an object of the present invention to provide a method of cleaning a slide center, which can be detached from the slide center and can perform secondary tunnel lining without hindrance when the apparatus is detached from the slide center.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, a method for cleaning a slide center according to the present invention includes providing a belt member including two belts that are bound and extending in a circumferential direction of a tunnel, and an outer surface of one of the belt members. Provided on the mold surface of the slide centure at the wellhead side in the longitudinal direction of the tunnel, provided with a Keren part for removing the residual concrete mass, and applying a release agent on the outer surface of the other belt of the belt member. Is brought into contact with the mold surface, and the belt member is stretched in the circumferential direction of the mold surface.The belt member is reciprocated in the circumferential direction of the mold surface, and is moved from the wellbore side to the face side while the belt member is reciprocated. removing the concrete Zankatamari adhering to the surface, then the working face side is inverted the belt member, and the coating portion on the mold surface of the slide Sentoru into contact with the mold surface Spanned the belt member in the circumferential direction of the surface, the through by a belt member is moved from the circumferential reciprocation is allowed while working face side of the mold surface wellhead side the coating unit to apply release agent to the mold surface It is characterized in that.
[0005]
Further, according to the present invention, after the release agent is applied to the mold surface by the application unit, the belt member is removed on the wellhead side of the mold surface, and the upper end surface of the slide center is lower than the upper end surface of the mold surface. characterized in that it is hooked to the upper portion of the projecting been hooked member to the belt member across the belt member from the point was to yield volume radially inside side of the mold surface.
Further, in the present invention, one drive belt is connected to each end of the belt member, and reciprocation along the circumferential direction of the mold surface of the belt member is performed by the drive belts at both ends of the belt member. The belt member is reciprocated in the opposite direction along the longitudinal direction , and the movement of the belt member from the wellbore to the face side and the movement from the face side to the wellbore side are performed when the drive belt is moved in the longitudinal direction of the tunnel. It is characterized by being moved in a direction .
Further, the invention is characterized in that the application section is constituted by an application roller.
[0006]
[Action]
In the cleaning of the slide centre, the belt member moves from the wellhead side to the face side while reciprocating in the longitudinal direction thereof, so that the remaining concrete clinging to the mold surface is removed by the keren portion.
Further, the belt member is reversed on the face side, and the belt member moves from the face side to the wellhead side while reciprocating in the longitudinal direction thereof, whereby the release agent is applied to the mold surface by the application unit.
After the cleaning, the upper portion of the belt member is hung on the hook member, and the entire belt member is accommodated radially inside the mold surface.
Note that connecting one drive belt to each end of the belt member is advantageous when moving the belt member.
Further, when the application section is constituted by an application roller, the release agent is more reliably applied.
[0007]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows a cross section through the tunnel. 1 is a ground pile, 3 is a secondary lining concrete, 5 is a slide centure, 7 is a rail laid at the bottom of the tunnel, 9 is a traveling platform running on the rail 7, 11 is a shearing carrier, and 5 is a slide centure. It is composed of a plurality of mold frames 13 that can be divided, and each mold frame 13 is scalably supported by a hydraulic jack, a cylinder, or the like disposed at an appropriate position of the traveling gantry 9.
[0008]
FIG. 2 is a schematic front view of an automatic peeling device with a release agent applying mechanism, FIG. 3 is an enlarged front view of a lower left portion of the automatic peeling device with a release agent applying mechanism, and FIG. 4 is a rail viewed from the arrow A in FIG. 5A is a front view of a belt member portion, and FIG. 5B is a plan view of the same.
Reference numeral 15 denotes an automatic cleaning device with a release agent application mechanism. The automatic cleaning device 15 can contact the belt member 17 disposed along the mold surface 13A of the slide center 5 and the mold surface 13A supported by the belt member 17. Is an application section 21 supported by the belt member 17 and applying a release agent to the mold surface 13A; a belt member driving means 23 for reciprocating the belt member 17 in its longitudinal direction; The frame 9 includes a frame 25 movably disposed along the longitudinal direction of the tunnel on the gantry 9, and a frame driving unit 27 for moving the frame 25.
[0009]
As shown in FIG. 5A, the belt member 17 is composed of two belts 17A and 17B extending at a constant interval in the longitudinal direction, and the belt member 17 is provided between the belts 17A and 17B. A plurality of binding materials 17C are provided at intervals in the longitudinal direction of the belts 17A and 17B, and the spacing between the belts 17A and 17B is maintained by the binding materials 17C. As shown in FIG. 3, drive belts 17D are connected to both ends of the belt member 17, respectively.
In addition, the Keren part 18 is provided on the surface of one belt 17A, and the coating part 21 is provided on the surface of the other belt 17B.
[0010]
As shown in FIG. 4, rails 31 extending in the longitudinal direction of the tunnel are provided on both lower sides of the traveling gantry 9, and the automatic Keren device 15 is guided along the rails 31 along the traveling gantry 9, The slide center 5 is moved from a portion protruding from the mold surface 13A to the wellhead side X (see FIG. 9B) to the face Y of the mold surface 13A (see FIG. 13B).
The frame 25 includes a hydraulic unit 35 movably engaged with the rail 31 via wheels 33, an arm 37 connected to the hydraulic unit 35, a tension arm 39 connected to the arm 37, and the like. A hydraulic jack 41 for fixing the arm 37 is provided between the arm 37 and the hydraulic unit 35. A drive unit 43 is disposed at one end of each of the rails 31. A hydraulic unit 35 is connected to a wire 45 connected to an output shaft of the drive unit 43 and a pulley 47 attached to the other end of each of the rails 31. Moves along the rail 31, and the frame driving means 27 is composed of the driving unit 43, the wire 45, and the pulley 47.
[0011]
At the tip of the tension arm 39, a guide roller 49 is disposed in contact with the mold surface 13A, and on the tension arm 39, a hydraulic cylinder 51 constituting the belt member driving means 23 is disposed. Pulleys 53 and 55 for a belt member are rotatably supported at the upper and lower ends of the tension arm 39, respectively, and a pulley 57 for the belt member is supported by the hydraulic cylinder 51.
The drive belts 17D at both ends of the belt member 17 are wound around the pulleys 53, 57, and 55, respectively, and then connected to the support pieces 61 of the arm 37 via the lever block 59, thereby forming the mold surface 13A of the slide center 5. An L-shaped hooking member 501 (see FIG. 9 (B)) for hooking the upper central portion of the belt member 17 when the belt member 17 is detached from the mold surface 13A is provided on the end surface of the wellhead side X of the. Have been.
[0012]
As shown in FIGS. 5 (A) and 5 (B), the Keren portion 18 is constituted by a polishing brush 19 for removing the remaining lump of the concrete 3 from the mold surface 13A, and the polishing brush 19 is disposed in the longitudinal direction of the belt 17A. Are provided at intervals.
An air nozzle 67 is attached to a portion of the belt 17A between adjacent polishing brushes 19, and compressed air is supplied to the air nozzle 67 from an air compressor 71 through an air supply pipe 63 as shown in FIG. Is supplied to blow air to the mold surface 13A, and the remaining lump of the concrete 3 shaved by the polishing brush 19 is blown off from the mold surface 13A.
[0013]
6 is a plan view of the coating section, FIG. 7 is a bottom view of the same, and FIG. 8 is an enlarged front view of a belt member.
The application unit 21 includes an application roller 2101 that contacts the mold surface 13A, a supply nozzle 2105 that supplies a release agent to the application roller 2101, and a distribution valve 2107 that is provided in each application unit 21 and supplies a release material to the supply nozzle 2105. , A pipe 2109 connecting the distribution valves 2107 of the coating sections 21, a pump 73 for supplying a release agent to the pipe 2109, a free bearing roller 2103, and the like.
A plurality of application rollers 2101 are provided at intervals in the longitudinal direction of the belt 17B, and the free bearing roller 2103 is provided between adjacent application rollers 2101.
The application roller 2101 is disposed via a frame plate 2111 attached to the belt 17B, a fixing plate 2113, bolts 2115, nuts 2117, and the like. The free bearing roller 2103 is provided with a fixing plate 2113, bolts 2115, nuts 2117, and the like. It is arranged through.
[0014]
The application roller 2101 is made of Kowa, and is rotatably attached to a shaft 2121 provided on the frame plate 2111. As shown in FIG. Is established. Three supply nozzles 2105 are provided at intervals in the longitudinal direction of the application roller 2101.
The free bearing roller 2103 is formed to have a dimension to contact the mold surface 13A, and the free bearing roller 2103 functions to prevent the belt 17B between the adjacent application rollers 2101 from contacting the mold surface 13A.
Then, a release material is ejected from the replenishing nozzle 2105 to the outer peripheral portion of the application roller 2101, and the release material is uniformly and efficiently applied to the mold surface 13A by the application roller 2101.
A pump 73 for supplying the release agent to the pipe 2109 is supported on the frame 25 side as shown in FIG. 2. In FIG. 2, 75 is a control device for controlling the air compressor 71 and the pump 73. Indicates a distribution board.
[0015]
Next, the operation will be described with reference to FIGS.
9 to 13, (A) is a front view, and (B) is a side view.
As shown in FIGS. 9 (A) and 9 (B), at the time of concrete pouring, the automatic draining device 15 is located on the wellhead side X with respect to the mold surface 13A of the slide center 5, and the belt member 17 is removed from the mold surface 13A. The upper central portion of the belt member 17 is hooked by the hook member 501, and the belt member 17 is retracted to a radially inner portion of the mold surface 13A.
Next, after the concrete is hardened, the slide centure 5 is peeled off from the concrete surface, and before the concrete is poured into the next concrete placing place, the concrete scraping device 15 removes the remaining concrete clumps adhered to the surface of the slide centure 5 by the automatic scraping device 15. Work is performed.
[0016]
In the case of performing the kerren work, first, as shown in FIGS. 10A and 10B, the frame 25 is moved by the frame driving means 27 onto the wellhead side X of the mold surface 13A of the slide center 5, and Next, as shown in FIGS. 11A and 11B, the belt member 17 is mounted on the mold surface 13A with the polishing brush 19 facing the mold surface 13A, and the polishing brush 19 is brought into contact with the mold surface 13A. Let it. When the belt member 17 is mounted, the tension of the belt member 17 is adjusted by the lever block 59.
[0017]
Next, both ends of the running one of the hydraulic cylinders 51 disposed on both sides of a lower portion of frame 9 causes reduced actuated by extending action of the other of the hydraulic cylinder 51, to perform these operation alternately, thereby the belt member 17 In the above, each drive belt 17D is reciprocated in the opposite direction along its longitudinal direction, whereby the belt member 17 is reciprocated in the circumferential direction on the mold surface 13A. In this embodiment, the belt member 17 is reciprocated at a stroke of 300 to 400 mm.
The reciprocating movement of the belt member 17 causes the polishing brush 19 to move while being in contact with the mold surface 13A, thereby performing a scraping operation for removing the residual concrete lump adhering to the mold surface 13A.
Then, as shown in FIGS. 11 to 13, the belt member 17 is moved from the wellhead side X to the face side Y while the belt member 17 is reciprocated in the circumferential direction on the mold surface 13 </ b> A. Keren work of the entire 13A is performed.
[0018]
When the operation is completed by moving from the wellhead side X to the face side Y, the belt member 17 is loosened by the lever block 59.
Then, this time, the belt member 17 is inverted so that the application roller 2101 comes into contact with the mold surface 13A, and the tension of the belt member 17 is adjusted by the lever block 59 in the same manner as described above, so that the application roller 2101 and the free bearing roller 2103 is brought into contact with the mold surface 13A.
Then, while the belt member 17 reciprocates, the pump 73 is operated to supply the release agent to the application roller 2101 via the distribution valve 2107 and the supply nozzle 2105, and the release agent is applied to the mold surface 13A by the application roller 2101. Apply to.
The reciprocating movement of the belt member 17 causes the application roller 2101 and the free bearing roller 2103 to come into contact with the mold surface 13A, move in the circumferential direction of the mold surface 13A while rotating, and apply the release material uniformly and efficiently to the mold surface 13A. Is done.
Then, while the belt member 17 is reciprocated in the circumferential direction on the mold surface 13A, the belt member 17 is moved from the cutting face side Y as shown in FIGS. The mold is moved to the wellhead side X, and the release material is applied to the entire mold surface 13A.
As shown in FIG. 11, when the belt member 17 is positioned on the wellhead side X of the mold surface 13A, the belt member 17 is loosened by the lever block 59, and the belt member 17 is moved from the mold surface 13A as shown in FIG. The upper central portion of the release belt member 17 is hooked on the hook member 501.
Next, as shown in FIG. 9, the frame 25 is moved above the mold surface 13A of the slide center 5 by the frame driving means 27 on the wellhead side X, and all parts of the belt member 17 are removed from the mold surface 13A. It is retracted radially inward of the mold surface 13A.
[0019]
According to the present embodiment, the belt member 17 including the polishing unit 18 and the application unit 21 is laid over the mold surface 13A, and the belt member 17 is moved in the longitudinal direction and the direction perpendicular to the longitudinal direction, thereby making it possible to remove Since the work and the application of the release agent are performed, in the narrow space between the mold surface 13A of the slide center 5 and the concrete, it is possible to automatically and reliably perform the operation of applying the release agent and the release agent. It becomes. In the examples, if a space of 10 cm could be secured, the kerane work and the application of the release agent could be performed.
In addition, since the operation of both the cleaning operation and the application of the release agent can be performed by moving the belt member 17, the operation efficiency is high and the operation time can be shortened. Was.
[0020]
In addition, since the release agent can be applied even in a narrow space, wasteful consumption of the release agent can be suppressed, and as in the past, the problem of excessive application, the problem that the release agent adheres to the reinforcing steel, and the release agent Problems such as fogging and floating which adversely affect the human body can be solved. Further, in reciprocating the belt member 17, both ends of the belt member 17 are pulled and pushed out by the drive belt 17D and the hydraulic cylinder 51, respectively, so that the reciprocating movement of the belt member 17 on the mold surface 13A is further improved. It is possible to perform the operation reliably.
[0021]
In addition, the belt member 17 is removed at the wellhead side X of the mold surface 13A of the slide center 5, and the upper portion of the belt member 17 is hooked on the hook member 501 on the upper end surface of the slide center 5, and the entire belt member 17 is formed on the mold surface 13A. And the slide center 5 is smoothly moved without any trouble, and the belt member 17 can be easily and quickly mounted on the mold surface 13A. This makes it possible to perform the Keren work and the release material applying work more efficiently.
[0022]
【The invention's effect】
As is apparent from the above description, according to the present invention, even in a small space, it is possible to automatically and reliably perform the work of applying the peeling agent and the release agent without manual work, and furthermore, the device can be easily attached to and detached from the slide center. In the state where the apparatus is removed from the slide center, the tunnel can be wrapped without hindrance.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view in a tunnel.
FIG. 2 is a schematic front view of an automatic cleaning device with a release agent application mechanism.
FIG. 3 is an enlarged front view of a lower left portion of an automatic cleaning device with a release agent application mechanism.
FIG. 4 is a side view of the rail as viewed from an arrow A in FIG. 3;
FIG. 5A is a front view of a belt member, and FIG. 5B is a plan view of the same.
FIG. 6 is a plan view of a coating unit.
FIG. 7 is a bottom view of a coating unit.
FIG. 8 is an enlarged front view of a belt member.
FIGS. 9A and 9B are explanatory views of the Keren operation and the release material applying operation, in which FIG. 9A is a front view of the slide center, and FIG. 9B is a side view of the slide center.
FIGS. 10A and 10B are explanatory views of a keeling operation and a release material applying operation, wherein FIG. 10A is a front view of a slide center, and FIG. 10B is a side view of the slide center.
11 (A) is a front view of a slide center, and FIG. 11 (B) is a side view of the slide center.
12 (A) is a front view of a slide center, and FIG. 12 (B) is a side view of the slide center.
FIGS. 13A and 13B are explanatory views of the Keren operation and the release material applying operation, wherein FIG. 13A is a front view of the slide center, and FIG. 13B is a side view of the slide center.
[Explanation of symbols]
5 Slide Centr 9 Traveling Stand 15 Automatic Keren Device 17 Belt Member 17A Belt 17B Belt 17C Binding Material 17D Drive Belt 18 Keren Part 21 Applicator 23 Belt Driving Means 25 Frame 27 Frame Driving Means 501 Hook Member 2101 Coating Roller

Claims (4)

A belt member comprising two tied belts extending in the circumferential direction of the tunnel is provided,
Providing a Keren part to remove concrete remaining lump on the outer surface of one belt of the belt member,
Providing an application portion for applying a release agent to the outer surface of the other belt of the belt member,
On the mold surface of the slide centure on the wellhead side in the longitudinal direction of the tunnel, the keren portion is brought into contact with the mold surface to span the belt member in the circumferential direction of the mold surface, and the belt member is moved in the circumferential direction of the mold surface. Moved from the wellhead side to the face side while reciprocating to remove concrete remaining mass attached to the mold surface by the keren part,
Next, the belt member is turned over on the face side, the application portion is brought into contact with the mold surface on the mold surface of the slide center, and the belt member is stretched in the circumferential direction of the mold surface, and the belt member is brought into contact with the mold surface. By moving from the face side to the wellhead side while reciprocating in the circumferential direction, the release unit was applied to the mold surface by the application unit,
A method for cleaning a slide center, comprising: After applying the release agent to the mold surface by the application unit, the belt member was removed on the wellhead side of the mold surface, and was protruded from a position below the upper end surface of the mold surface at the upper end surface of the slide center. cleaning of the slide Sentoru of claim 1, wherein the the hooking member is hooked to the upper portion of the belt member across the belt member so as to yield volume radially inside side of the mold surface. One drive belt is connected to each end of the belt member, and the reciprocating movement along the circumferential direction of the mold surface of the belt member is such that each drive belt is moved along the longitudinal direction at both ends of the belt member. It is made by reciprocating in the opposite direction, the movement of the belt member from the wellhead to the face side, and the movement from the face side to the wellhead side, the drive belt is moved in the longitudinal direction of the tunnel 3. The method for cleaning a slide center according to claim 1 or 2, wherein The method according to claim 1, 2 or 3, wherein the application unit is configured by an application roller.

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