JP2005299236A - Structure maintenance apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the following problem: conventional maintenance work for a structure is very difficult or impossible because of degraded working efficiency due to requirements of setting of scaffolding or because of highly dangerous working conditions for workers depending on circumferential environmental conditions. <P>SOLUTION: There is provided a structure maintenance apparatus which is comprised of a plurality of guide rails 1 arranged almost in parallel with surfaces W of a structure C as an object for maintenance, and maintenance sections 2 movably arranged on the guide rails 1. Herein each maintenance section 2 is formed of a main body 20 mounted on the guide rail 1 and slidable in a direction at right angles to the guide rail 1, and a maintenance body 21 reciprocatively movable in a guide rail 1 traveling direction with respect to the main body 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus that performs maintenance and management of civil and architectural structures, mainly concrete structures, that is, inspection, investigation, inspection, repair, reinforcement, and the like.

    As a guideline for the maintenance and management of concrete structures, there is “Science of Civil Engineers, 2001, Standard Specification for Concrete, Maintenance”. In the book, the definition of maintenance management is "maintenance management: all technical activities for maintaining the performance of the structure at or above the required level during the service period of the structure". And “all technical acts” are, for example, operations such as inspection, investigation, inspection, repair, reinforcement, etc. In this specification, “maintenance” means inspection, inspection, inspection, repair, Used to include all maintenance functions such as reinforcement.

  Usually, a structure such as a concrete structure is deteriorated with the passage of years, so it needs to be inspected for a certain period of time. And based on the survey, necessary repairs and reinforcements were made. For the investigation, first, scaffolds were installed along the surface where the concrete structure was investigated.

  Next, an operator who is in charge of the investigation of the structure has been on a scaffold to investigate the deterioration state of the structure. The contents of this survey include appearance change survey, fog survey, salinity survey, neutralization survey, and core sampling survey.

  If there is a deterioration place or a coating film deterioration place by such a detailed survey, repair and reinforcement of the place is performed. The work involved, for example, removing the deteriorated part and repairing the cross section with mortar or repair material on the removed part. After that, the material may be applied to prevent deterioration factors from entering the concrete or the concrete surface may be painted.

  For example, as a concrete structure repair device, a “concrete repair device” disclosed in Japanese Patent Application Laid-Open No. 11-217943 (prior art 1) is known. According to the prior art 1, “the spraying device has a nozzle for injecting concrete, and a concrete supply pipe and a quick setting agent supply pipe are connected to this nozzle. The carriage is provided with a roller fitted to the rail, and a stage mounted on the carriage via a rack and pinion mechanism or a ball screw mechanism and moving along the longitudinal direction of the carriage. Can move the spraying device mounted on the upper part in the two-dimensional directions of X and Y. In this case, the rotation sensor or the like attached to each drive motor can be used to move the two of the carriage and the stage. There is a disclosure of a “concrete repair device” that “dimensional coordinate values (x, y) are known”.

Further, as a lower surface repair device and a lower surface repair method for a concrete structure, Japanese Patent Application Laid-Open No. 2002-167976 (Prior Art 2) describes “a support base that supports a water jet spray device, a slider that moves along the support base, A water jet injection device including a supply pipe connected to a slider and supplied with a water jet and a nozzle for injecting a water jet attached to the tip of the supply pipe is installed on the lower surface of the concrete structure. "Is disclosed.
JP-A-11-217943 (Patent No. 3334591) JP 2002-167976 A

  Civil engineering and architectural structures such as concrete structures include bridges, high piers, high-rise buildings, sewage treatment plants, highways, tunnels, etc., all of which are highly public and maintain their repairs and reinforcements. When performing the management work, there were many restrictions such as securing the installation location of the work scaffold and restrictions on work time. For example, in the case of a building in the city, the interval between adjacent buildings is often narrow, and it may be difficult to install a scaffold. In the case of a sewage treatment plant or a tunnel, there may be a problem that the structure cannot be used during the work period.

  In addition, there are cases where maintenance work is performed using a large machine such as a crane truck without installing a work platform, but the location where a large machine can be installed is limited depending on the location of the neighboring buildings, etc. The target structures that can perform maintenance work using such large machinery are limited.

  In general, the overall construction cost, including the installation work of scaffolds in the maintenance work of structures, is the proportion of labor costs due to work inefficiencies and prolonged work construction periods. There is a tendency to increase, and the overall construction cost tends to be expensive.

  The repair device of the prior art 1 also has a problem that the installation of the guide rail is necessary for the installation of the guide rail, and the repair device of the prior art 2 requires the installation of a fixing device that is a scaffold for supporting the device. there were. And these guide rails needed to remove a guide rail after work, and to install a guide rail again in the next maintenance work.

  Furthermore, in the prior art 1 and the prior art 2, when there is an obstacle such as a pipe in the structure, there is a problem that it is impossible to cope with it and maintenance is impossible. In addition, there is a problem that it is difficult to repair corners and ends of the structure to be repaired, and it is difficult to make maintenance work uniform.

  In addition, in the prior art 1 and the prior art 2, there has been a problem that the deteriorated concrete pieces and powder removed on the guide rails adhere when the deteriorated portion is removed, which hinders the running of the main body.

  In addition, it is dangerous to perform maintenance work manually due to the shape of the structure such as the sewage pipe of the sewage treatment plant, the structure that is narrow enough for workers to enter, and the structure that may generate harmful gases, and the surrounding environmental conditions. Or, when construction is impossible, there is a problem that the work is not performed even though there is a possibility of deterioration due to the aging of the structure and the necessity of maintenance management.

  It is an object of the present invention to provide a device capable of efficiently maintaining and managing a structure that is impossible to maintain, a difficult structure, a dangerous structure, or each part. And In particular, it is an object of the present invention to obtain an apparatus capable of maintaining and managing various structures by reducing the number of workers who move using the scaffolding and scaffolding in the maintenance work.

  In order to solve the above-described problems, in the maintenance management apparatus for a structure in which a guide rail is provided for a structure that is an object of maintenance management and the maintenance management unit is provided so as to be movable on the guide rail, the maintenance management unit includes a guide Proposed structure maintenance management device, which is equipped with a main body mounted on the rail and slidable in the direction perpendicular to the guide rail, and a maintenance body that can reciprocate in the direction of travel of the guide rail with respect to the main body To do.

  Also, in a maintenance management device for a structure in which a plurality of guide rails are provided for a structure to be maintained and a maintenance management unit is provided that is movable and detachable on the guide rail, the guide rail becomes a structure. A plurality of fixed guide rails erected with respect to the fixed guide rails, and a movable guide rail is provided between the plurality of fixed guide rails so that the movable guide rail can be moved. And a main body mounted on the moving guide rail and slidable in a direction perpendicular to the moving guide rail, and a maintenance management body capable of reciprocating in the moving direction of the moving guide rail with respect to the main body. A maintenance management device is proposed.

  Furthermore, the maintenance management apparatus of the structure whose maintenance management body of the said 0016 column and 0017 column description is a wall surface recessed part maintenance repair body which has a repair material injection | pouring part and a trowel finishing part is proposed. In addition, a maintenance management device for a structure is proposed in which the maintenance management body described in the above-mentioned columns 0016 and 0017 is a wall surface covering maintenance repair body having a repair material sending part such as a sheet material and a wall surface pressing part such as a sheet material. .

  According to the present invention, maintenance work by human power depending on the shape of the bottom surface of the overpass, which is difficult for workers to enter, narrow or dangerous structures, structures that may cause harmful gas generation, and surrounding environmental conditions Even for structures that are dangerous or impossible to construct, maintenance work has become possible. Therefore, it is possible to use a structure that has been impossible to perform maintenance work in the past, and it can be safely performed in an environment that is highly dangerous in maintenance work, thereby improving the safety of workers.

  In addition, since the work after the guide rail is installed can be carried out almost without the need for a scaffold, the construction period can be shortened and the number of workers can be reduced, thereby improving work efficiency. Accordingly, the cost of one maintenance operation can be reduced, the number of operations can be increased, and the life of the target structure can be extended.

  Furthermore, since the guide rail can be continuously installed on the structure, it is not necessary to install the guide rail again at the next maintenance work, and the work can be performed very easily by shortening the construction period. effective. In addition, since the installation of scaffolding is no longer necessary, maintenance of structures such as highways, tunnels, and sewage treatment plants that are not normally stopped can be performed while the structures are still in use. .

  Furthermore, since the maintenance work of the structure is performed by an automatic device by remote control, a uniform and constant quality maintenance work can be performed.

  In addition, according to the present invention, when there is an obstacle such as a pipe in the structure, and maintenance work for corners and ends of the structure can be performed in the same manner as the central wall surface, the work can be made uniform. Became possible.

  Furthermore, the maintenance body can move in the traveling direction with respect to the main body that is engaged with the guide rail and travels even in places where maintenance such as corners of the inner wall surface of the structure is difficult in the past. In addition, maintenance work can be performed automatically and efficiently even at corners. In particular, it has become possible to perform a planar finishing work in the trowel coating even in the repair coating work of the removed part of the structure and the surface recess.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a partially sectional plan view showing an installation state of a guide rail of the present invention, and FIG. 2 is a sectional view taken along line AA in FIG. 3 and 4 are enlarged plan views of the maintenance management unit whose maintenance management body is the first embodiment, FIGS. 5 and 6 are similarly enlarged front views, and FIGS. FIG. 9 is an explanatory view showing a working state in the case of a concave repair body, FIG. 9 is a cross-sectional explanatory view showing an engagement state between the main body of the maintenance management unit and the guide rail, and FIGS. 10 and 11 are the second embodiment of the maintenance management body. FIG. 12 and FIG. 13 are similarly enlarged front views, and FIG. 14 is an explanatory view showing a working state when the maintenance management unit is a wall covering repair body. FIG. 15 and FIG. These are the front and side views in the case of repairing the lower surface of the overpass according to the embodiment of the present invention.

  The structure maintenance management device according to the present invention is provided with a plurality of guide rails 1 substantially parallel to the surface W of the structure C for maintenance, and the maintenance management unit 2 is movable and detachable on the guide rail 1. Provide. The maintenance management unit 2 includes a main body 20 mounted on the guide rail 1 and slidable in a direction perpendicular to the guide rail 1, and a maintenance management body 21 capable of reciprocating in the travel direction of the guide rail 1 with respect to the main body 20. Provide.

  The structure maintenance management apparatus according to the present invention will be further described with reference to an embodiment. The guide rail 1 includes a plurality of fixed guide rails 10 erected in a vertical direction substantially parallel to the surface W of the structure C, and a plurality of guide rails 10. It consists of a horizontal moving guide rail 11 provided between the fixed guide rails 10 so as to be movable up and down. The maintenance management unit 2 is provided on the movement guide rail 11 so as to be movable and detachable. When the target surface is a ceiling surface, such as the ceiling surface WC of FIG. 2 and the lower surface WC of the structure C as shown in FIGS. 15 and 16, the fixed guide rail 11 is erected substantially parallel to the ceiling surface. This is a horizontal fixed guide rail 10a, and the horizontal moving guide rail 11 is provided between the horizontal fixed guide rails 10a so as to be horizontally movable.

  Each of the fixed guide rail 10 and the movable guide rail 11 is formed of a single straight cylindrical cylinder or columnar shape (pole shape) having the same diameter, or a polygonal columnar shape or a polygonal cylindrical shape having the same thickness, and the material is a metal. Made of hard synthetic resin, FRP, etc., which have high strength and are resistant to alteration. Depending on the structure C, the fixed guide rails 10 and 10a may be fixed in a permanently installed state.

  The maintenance management unit 2 is attached to the moving guide rail 11 and is slidable in a direction perpendicular to the moving guide rail 11, and the maintenance management capable of reciprocating in the traveling direction of the moving guide rail 11 with respect to the main body 20. It consists of a body 21.

  The main body 20 is slidable in a direction perpendicular to the moving guide rail 11, and is engaged with the moving guide rail 11 in a concavo-convex shape as shown in FIG. Travel along the rail 11. The drive motor is controlled by remote control by an operator under computer control. As another embodiment of the main body 20, the main body 20 can move along the moving guide rail 11, can move in a direction perpendicular to the moving guide rail 11, and can further rotate 360 degrees with respect to the moving guide rail 11. It is also possible to configure. In this case, the movement guide rail 11 is preferably cylindrical or columnar.

  As shown in FIGS. 3 to 8, the maintenance management body 21 of the present invention is a wall surface concave body repair body 21a as shown in FIGS. Moreover, it consists of the wall surface covering repair body 21b shown to FIG. 10 thru | or 14 as 2nd Embodiment. In another embodiment of the maintenance body 21, a high-pressure water jet injection device, a device for repairing a recess on the wall surface, a device for investigating the structure, a device for cleaning the surface of the structure, and a deteriorated portion of the structure Equipment to remove, equipment to repair the part from which the deteriorated part of the structure has been removed, equipment to remove the structure surface coating or installation, and equipment to repair the part from which the structure surface coating or installation has been removed, structure There are devices for recovering and improving the performance of objects, investigation cameras, and the like, which can be used as appropriate. It is also possible to provide a plurality of same or different types of maintenance management bodies 21 at the same time.

  A wall surface concave portion maintenance repair body 21a according to the first embodiment includes a repair material injecting portion 3 and a trowel finishing portion 4. In the wall surface concave portion maintenance repair body 21a, the repair material injection portion 3 is connected to a repair material injection pipe (not shown) in the main body 20, and is connected to the trowel finishing portion 4 on the wall surface side W which is the opposite side. The repair material injecting portion 3 is provided so as to be movable with respect to the main body 20 from the center position of the main body shown in FIG. 3 to the left end portion shown in FIG. Similarly, it can move to the right end of the main body 20 (not shown).

  The iron finishing portion 4 has a pyramid shape with a hollow inside that opens in a rectangular shape from the moving guide rail 11 in a horizontal direction at right angles, and a skirt portion 40 is provided outward from the slope of the pyramid. In the center of the trowel finishing portion 4, a repair material injection portion 3 is opened.

  A guide rail cleaning device (not shown) capable of jetting high-pressure water is attached to the main body 20 of the maintenance management unit 2 of the present invention, and the moving guide rail 11 and the fixed guide rail are provided by this guide rail cleaning device. 10 can be cleaned, and foreign substances can be prevented from adhering to the fixed guide rails 10 and 10a and the moving guard rail 11 while the moving guard rail 11 is moving.

  The operation of the first embodiment of the present invention will be described. The maintenance management unit 2 is mounted on the moving guide rail 11 by the main body 20 so as to be reciprocally movable, and is provided so as to be vertically movable between the plurality of fixed guide rails 10, so that the entire surface W of the structure C is provided. Can be repaired.

  Since the maintenance management unit 2 is slidable in a direction perpendicular to the moving guide rail 11, if there is a pipe or the like near the wall surface W, it is slid so as to move backward with respect to the wall surface W as shown in FIG. Further, it is possible to prevent the trowel finishing portion 4 of the wall surface concave portion maintenance repair body 21a from colliding with piping or the like. Further, the pressure on the wall surface W can be adjusted by sliding in the wall surface W direction.

  When the wall surface recessed part maintenance repair body 21a which is this embodiment goes to places, such as a recessed part which is the object which repairs the wall surface W, it sprays the repair material M from the repair injection | pouring part 3 on the wall surface recessed part WP so that the recessed part WP may be covered. (See FIG. 7). Although the repair material M rises from the wall surface recess WP, the main body 20 is immediately moved in the horizontal direction by the moving guide rail 11, and the repair material M is subjected to the iron finishing work by the skirt portion 40 of the iron finish portion 4. The movement of the iron finishing portion 4 may be a horizontal movement with respect to the main body 20. It is also possible to perform the iron finishing work by moving the moving guide rail 11 up and down between the fixed guide rails 10 and moving the iron finishing portion 4 up and down relative to the wall surface recess WP.

  A wall surface covering maintenance repair body 21b according to the second embodiment includes a repair material sending part 5 such as a sheet material and a wall surface pressing part 6 such as a sheet material. In the wall covering maintenance repair body 21b, the repair material delivery section 5 is connected to a repair material transport pipe (not shown) in the main body 20, and a delivery port 50 is provided on the wall surface W on the opposite side. A wall surface pressing portion 6, which is a plate-like body protruding toward the wall surface W, is provided at one end or both ends of the delivery port 50. One or two of the wall surface pressing parts 6 may be fixed to the repair material delivery part 5, and one or two of the wall pressing parts 6 may be provided so as to be able to appear and retract.

  The operation of the second embodiment of the present invention will be described. The maintenance management unit 2 is mounted on the moving guide rail 11 by the main body 20 so as to be reciprocally movable, and is provided so as to be vertically movable between the plurality of fixed guide rails 10, so that the entire surface W of the structure C is provided. Can be repaired.

  Since the maintenance management unit 2 is slidable in a direction perpendicular to the moving guide rail 11, if there is a pipe or the like near the wall surface W, it is slid so as to move backward with respect to the wall surface W as shown in FIG. Further, it is possible to prevent the repair material sending part 5 such as the sheet material of the wall surface covering maintenance repair body 21b and the wall surface pressing part 6 such as the sheet material from retreating and colliding with the pipe or the like. Further, the pressure on the wall surface W can be adjusted by sliding in the wall surface W direction.

  The traveling direction of the maintenance management unit 2 travels in a direction in which the wall surface pressing portion 6 of the wall surface covering maintenance repair body 21b is located behind the repair material sending unit 5 as shown in FIG. When traveling in such a direction, the repair material S such as a sheet material is sent from the repair material delivery section 5 to the wall surface W side when the coating is performed on the wall W to be repaired. In addition, since a sheet material or the like is pressed against the wall surface W by the travel of the main body 20 and the wall surface pressing portion 6, necessary portions of the wall surface W can be covered.

  Each operation of each device according to the present invention can be performed by an operator's instruction by remote control, or the distance and shape of the object are automatically grasped by computer control incorporated in the main body 21 in advance. It is also possible to perform maintenance automatically.

  It is highly applicable as a maintenance management device for various structures, especially concrete buildings such as bridges, high piers, and high-rise buildings, sewage treatment plants, expressways, and tunnel walls. For example, in addition to repair work such as wall depressions on the structure, investigation of the structure, cleaning of the surface of the structure, removal of the deteriorated part of the structure, repair of the part from which the deteriorated part of the structure has been removed, structure surface coated material Alternatively, it is highly possible to use for various maintenance work such as removal of installed objects and repair of a structure surface coating or installation removed part.

The partial cross section top view which shows embodiment of this invention and shows the installation state of the guide rail of this invention Similarly, a cross-sectional view taken along line AA in FIG. The enlarged plan view which shows 1st Embodiment of the maintenance management part of this invention The enlarged plan view which shows 1st Embodiment of the maintenance management part of this invention The enlarged front view which shows 1st Embodiment of the maintenance management part of this invention The enlarged front view which shows 1st Embodiment of the maintenance management part of this invention Explanatory drawing which shows the working state of 1st Embodiment of the maintenance management part of this invention Explanatory drawing which shows the working state of 1st Embodiment of the maintenance management part of this invention Cross-sectional explanatory drawing which shows the engagement state of the main body of the maintenance management part and guide rail of embodiment of this invention The enlarged plan view which shows 2nd Embodiment of the maintenance management part of this invention The enlarged plan view which shows 2nd Embodiment of the maintenance management part of this invention The enlarged front view which shows 2nd Embodiment of the maintenance management part of this invention The enlarged front view which shows 2nd Embodiment of the maintenance management part of this invention Explanatory drawing which shows the working state of 2nd Embodiment of the maintenance management part of this invention Front explanatory drawing which shows the situation which repairs the lower surface of an overpass using embodiment of this invention Side surface explanatory drawing which shows the condition which repairs the lower surface of a crossover using embodiment of this invention

Explanation of symbols

1 Guide rail 10 Fixed guide rail (vertical fixed guide rail)
10a Fixed guide rail (horizontal fixed guide rail)
11 Moving guide rail (horizontal guide rail)
2 Maintenance Management Department 20 Main Body 21a Maintenance Management Body (Wall Recess Maintenance Repair Body)
3 Repair material injection part 4 Iron finishing part 40 Hem part 21b Maintenance body (wall covering maintenance repair body)
5 Repair material sending section 6 Wall pressing section C Structure W Wall surface WP Wall surface recess M Repair material (coating material, etc.)
S Repair material (sheet material, etc.)

Claims (4)

  In the maintenance management device for a structure in which a guide rail is provided for a structure to be maintenance-managed and a maintenance management unit is provided so as to be movable on the guide rail, the maintenance-management unit is attached to the guide rail and connected to the guide rail. A structure maintenance management device comprising: a main body slidable in a right angle direction; and a maintenance body capable of reciprocating in the guide rail traveling direction with respect to the main body.   In a maintenance apparatus for a structure in which a plurality of guide rails are provided for a structure to be maintained and a maintenance management unit is provided that is movable and detachable on the guide rail, the guide rail is attached to the structure. A plurality of fixed guide rails that are erected and a movable guide rail that is movable between the plurality of fixed guide rails, and a maintenance management unit that is movable and detachable on the movable guide rail Maintenance and management of a structure, characterized in that a main body mounted on a guide rail and slidable in a direction perpendicular to the moving guide rail and a maintenance body capable of reciprocating in the moving direction of the moving guide rail with respect to the main body are provided. apparatus.   The maintenance management device for a structure according to claim 1 or 2, wherein the maintenance management body is a wall surface concave part repairing body having a repair material injection part and a trowel finishing part. The maintenance management apparatus for a structure according to claim 1 or 2, wherein the maintenance management body is a wall surface covering repair body having a repair material sending part such as a sheet material and a wall surface pressing part such as a sheet material.

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