KR20080092310A - Deconstruction method for structure including asbestos - Google Patents

Abstract

A deconstruction method for a structure including asbestos is provided to remove asbestos safely by attaching a sealing unit to a part including asbestos and releasing a part with no asbestos from the structure and then moving the structured outside. A deconstruction method for a structure including asbestos includes the steps of: attaching a sealing unit(200) to the structure including asbestos to isolate the structure including asbestos from outside; separating the structure from a wall, a floor, and a ceiling to which the structure is fixed; disassembling the structure into several parts to reduce the size of the structure; and then moving the structure reduced in size to the outside.

Description

Removal of structures containing asbestos {DECONSTRUCTION METHOD FOR STRUCTURE INCLUDING ASBESTOS}

The present invention relates to a method of removing a structure containing some asbestos, and more particularly, to a method of removing a structure that is coupled to at least one surface of a wall, a floor, or a ceiling and spaced at least a distance from a surface on which at least a part of the structure is fixed. Related.

In addition, the present invention relates to a method for removing pieces of an asbestos-containing structure such that asbestos does not leak to the outside when the pieces are removed when the pieces are bonded to the asbestos-containing structure.

Before the dangers of asbestos were known, various interior and exterior materials were constructed using asbestos or asbestos-containing materials. Such asbestos is inexpensive, has excellent bonding strength with other materials, has excellent mechanical strength, and is excellent in nonflammability, insulation, durability, insulation, and heat retention. , Fireproof material, thermal insulation material, heat insulation material, electric insulation material, electrolyte membrane material, brake lining material and the like, the use is very wide and wide.

In 1965-1991, public buildings such as government offices, schools, subways, terminals, power plants, gymnasiums, airports, dams, shipyards, warehouses, cinemas, hotels, banks, etc. Since the legislation has been enacted, the reality is that almost all buildings built at that time remain foamed asbestos.

However, recent studies on asbestos revealed that asbestos dust absorption through long-term respiratory tract causes asbestosis (pulmonary necrosis) and lung cancer malignant mesothelioma.

In particular, the most dangerous of these types of asbestos (Crocidolite), followed by Amosite, and then asbestos (Chrysotile). Asbestos is a very fine fiber, short in diameter, 3/100 thousandth of a millimeter, which is only one thousandth of a thousand hairs, invisible to the eye, and only a few short fibers can be seen under a microscope. .

Among them, malignant mesothelioma is caused by grocitrite, or cyanolite, which is inhaled during the respiratory process of the pleura and peritoneum. Therefore, asbestos workers and people exposed to asbestos-containing materials for a long time in the asbestos lung, lung cancer, malignant mesothelioma, and many cases, resulting in various problems.

For example, most of the ceiling materials used in the subway, schools, hospitals, and infrastructure facilities contain asbestos, and the asbestos content of indoors is several times higher than the prescribed value. It is.

Due to the risk of asbestos, when a structure containing asbestos is used as a partition, it is desirable to completely dismantle it immediately. Examples of structures include partitions and partitions used in the bathroom. Structures used as partitions generally include several planes (planes) for dividing the compartments and connecting means for connecting each plane into one, each of which contains asbestos, but the connecting means usually do not contain asbestos. .

1A to 1C are views for explaining a general structure including asbestos. In particular, the present invention is combined with one or more of the walls, floors, ceilings of the room, at least a part of the structure is spaced at least a certain distance with respect to the fixed surface and comprises a portion of asbestos, preferably used as a partition in the bathroom, etc. Represents a structure that can be done. In addition, it is preferable that the structure includes a plurality of surfaces and a connecting means connecting the plurality of surfaces to each other and not including asbestos. Each of the plurality of surfaces may move through a general entrance, but the entire structure does not move through a general entrance. It is normal that it is too big.

FIG. 1A is a view showing the structure as viewed from the front, and includes an asbestos-containing portion 101 and an asbestos-containing portion 101 and a frame 100 that maintains the basic structure, thereby making the effect of not being visible from each other from the inside. Frame 100 has a structure that can be opened by a case, and although not shown, including the asbestos-containing portion 101 between the accessible portion is not visible to each other.

Figure 1b is a view showing the structure from the top down, particularly showing the casement structure. There is a part 103 secured by the rotatable part 102 and the other part of the structure, which is connected by a hinge 110. Through this, the entire structure may serve as a swing door through the rotation of the rotatable portion 102 without moving. In addition, the rotatable portion 102 and the hinge 110, the fixed portion 103 and the hinge 110 are each connected with a screw or the like, when connected with screws, the screw into the asbestos-containing portion 101 It is also possible to connect.

Figure 1c is a view showing the structure from the top down, particularly showing the casement structure. The rotatable portion of the casement structure includes a frame 100 which surrounds the asbestos-containing portion 101 and the asbestos-containing portion 101 and maintains a basic structure, and in this case, the shaft 120 has a asbestos-containing portion 101 and the frame. Penetrate 100. These shafts can be combined with the frame 100 having a groove to form a rotatable casement structure.

As such, if there is a structure containing asbestos components in the room, it is desirable for the public health to remove it. In particular, when using such asbestos-containing structures as partitions indoors, it is essential to move outdoors for removal. In the case of moving the whole structure through the doorway, the structure is large. Generally, the connecting means are removed to separate several connected planes, and then each surface containing asbestos is moved to the outside through the doorway. .

However, when the rotatable portion 102 and the portion 103 fixed by the other portion of the structure are connected by the hinge 110 as shown in FIG. 1B, when the screw is removed to remove the connecting means, asbestos is removed. Asbestos of the containing structure will come out. In order to prevent such a situation, in the past, a sealing means, for example, vinyl is installed on the entire wall of the interior to isolate the interior space from the outside, and then a worker wears the dustproof equipment therein. When dismantling a structure containing asbestos in this way, it takes a long time and a lot of vinyl was economically undesirable.

In addition, there is a risk that workers can be exposed to asbestos because a person works in an enclosed space, and when ascending a structure containing disassembled asbestos to the outside, there is a problem that asbestos can escape to the outside. .

In order to solve such a problem, the present invention is to provide a method for removing asbestos-containing structures that can safely remove the asbestos-containing structure without installing a sealing means on the entire wall, reducing the time and cost. It is done.

In addition, the present invention provides a method for removing a structure containing asbestos having a very low risk of asbestos leaking out while saving time and cost because the structure is divided and reduced in size by separating a plurality of connecting means that do not include asbestos. It aims to do it.

In addition, an object of the present invention is to provide a method for removing the fastening means that can effectively prevent asbestos scattering while disassembling the fastening means for joining a structure including asbestos.

In order to achieve the above object, the present invention is a method for removing a structure containing asbestos is combined with at least one of the walls, floors, ceilings of the room and at least a part of the structure is spaced apart from the fixed surface by a predetermined distance or more A method of removing a structure including a part, the method comprising: isolating a portion including asbestos from the outside through a sealing means, separating the structure from at least one surface of the combined wall, floor, or ceiling, including asbestos in the structure The step of dividing the structure into a plurality of pieces to reduce the size by separating the parts that do not have, and the step of moving the reduced structure to the outside.

In addition, the structure comprises a plurality of faces and a connecting means connecting the plurality of faces to each other and not including asbestos.

In addition, preferably, the step of reducing the size may be performed by separating the connecting means into a plurality.

In addition, the step of isolating preferably comprises attaching the adhesive means to the structure and attaching the sealing means to the adhesive means.

In addition, the connection means preferably comprises at least one of the hinge, the shaft of the sliding door, the uneven portion of the sliding door.

In addition, in the step of attaching the adhesive means, it is preferable to spray by spraying the spray bond to the structure.

In addition, in the step of attaching the sealing means to the bonding means, it is preferable to attach the vinyl sheet to the sprayed bonding means.

In addition, the step of removing the fastening means is to seal around the fastening means insertion surface of the connecting means, inserting the fastening means removal tool to the sealing portion, connecting the sound pressure device, after operating the sound pressure machine to operate the fastening It is preferred to include removing the means and removing the fastening means removal tool and the sound pressure device.

In addition, the step of removing the fastening means more preferably comprises the step of injecting a sealant into the seal prior to the step of removing the fastening means removal tool and the negative pressure.

Through this configuration, it is possible to safely remove the structure containing asbestos without installing the sealing means on the entire wall, there is an effect that can reduce the time and cost.

In addition, the present invention by spraying the adhesive means through the spray to the structure, by attaching the sealing means to the bonding means is separated from the interior and the structure part, the effect of providing a method for removing the structure containing asbestos, which saves time and cost There is.

In addition, the present invention provides a method for removing a structure containing asbestos having a very low risk of asbestos flowing into the room while saving time and cost because the structure is divided and reduced in size by separating a plurality of connecting means that do not include asbestos. It is effective.

In addition, the present invention can remove the fastening member fastened to the asbestos-containing material, it is possible to reduce the cost, there is an effect that can perform the operation in less time.

In addition, the present invention has no effect of asbestos scattering in the removal of the fastening means of the asbestos-containing material, there is an effect that the pollution of the workplace and the surrounding area due to scattering and damage to the health of workers.

In addition, when removing the fastening member of the asbestos-containing material, the sealing means can be easily combined with the workpiece to seal the outside, and the fastening member can be directly detached from the outside without having to put the work tool in the sealing means, The operator can remove the fastening member conveniently.

2 is a view for explaining a method of removing a structure containing asbestos according to the present invention, in particular, after applying the adhesive means to the asbestos containing portion 101, and then assembling the sealing means 106 to the asbestos containing portion asbestos A diagram for explaining a step of isolating a structure including the outside.

The structure includes a plurality of surfaces and connecting means connecting the plurality of surfaces to each other and not including asbestos, the plurality of surfaces may be flat or curved, respectively, and the connecting means may include hinges, shafts of sliding doors, and uneven parts of sliding doors. It is already described in Figures 1a to 1c that it is preferable to include at least one of.

In the present invention, after spraying the adhesive means as a fluid to the asbestos containing portion, by attaching the sealing means 106 thereon very low possibility of asbestos flow out to the outside, by separating the connection means that does not contain asbestos It is characterized by reducing the size of the structure and then moving it outdoors through the normal entrance.

Injecting the fluid may, for example, spray the adhesive means using a spray bond. After spraying a certain time after spraying the adhesive means for spraying, and before the solidification to surround the asbestos-containing portion 101 with a sealing means to block the contact between the structure and the air in the room. After spraying the bonding means, the sealing means is brought to the bonding means, so that the asbestos-containing portion 101 and the sealing means 106 exposed to the outside are bonded, so that the portion where the asbestos-containing portion 101 is exposed from the outside is eliminated. That is, the asbestos containing portion 101 is isolated from the room. Here, the sealing means 106 may be a vinyl sheet or the like, and any material may be used as long as it is thin and not ventilated.

When the asbestos-containing portion 101 is isolated from the outside through the bonding means 105 and the sealing means 106, the process of separating the structure from at least one of the wall, the bottom, and the ceiling may be performed with a cutting tool such as a drill or a saw. It is possible through cutting or dismantling the connecting means connecting the frame 100 and the wall surface. That is, the structure is separated from at least one of the wall surface, the bottom surface, and the ceiling with the asbestos-containing portion 101 isolated from the outside.

3 is another view for explaining a method of removing a structure containing asbestos according to the present invention. 3 shows an asbestos-containing portion 101 and a frame 100 surrounding the asbestos-containing portion 101, and the asbestos-containing portion 101 is adhered to the asbestos-containing portion 101 through the bonding means 105 and the bonding means for bonding. There is a sealing means 106 to isolate. As can be seen in Figure 3, the asbestos-containing portion 101 is once surrounded by the frame 100, the part in contact with the rest of the room is blocked by the bonding means 105 and the sealing means 106. Thus, the asbestos containing portion 101 is isolated from the outside. 3, as in FIG. 2, after the asbestos-containing portion 101 is isolated from the outside, the structure is separated from at least one of the wall, the bottom surface, and the ceiling with the asbestos-containing portion 101 isolated from the outside.

Even after the asbestos-containing portion 101 is isolated from the outside, asbestos may be scattered in the process of reducing the size and dismantling the connection in order to exit through the doorway. Specifically, in the hinge-like structure described in FIG. 1B, the rotatable portion 102 and the hinge 110, the fixed portion 103 and the hinge 110 are often connected with screws, respectively. When the screw is loosened to release, the screw is embedded in the asbestos-containing portion 101 of the rotatable portion 102 or the fixed portion 103 and comes out of the asbestos. In addition, when the shaft penetrates the asbestos-containing portion 101 even when the shaft is separated from the connected structure using the shaft 120, asbestos may come out of the asbestos-containing portion 101 even when the shaft 120 is separated. There is. In order to eliminate such a concern, it is preferable to separate and disassemble the connecting means itself without separating the connecting means and the asbestos-containing portion 101 connected by the connecting means.

4 is a view for explaining the separation of the connecting means after partial sealing including asbestos. In Figure 4, the connecting means is a hinge, the rotatable portion 102 and the hinge 110, the fixed portion 103 and the hinge 110 is connected via a screw. In the general case, if the screw between the rotatable portion 102 and the hinge 110 or the fixed portion 103 and the hinge 110 is disassembled and separated, the asbestos may come out of the screw separated from the asbestos-containing portion 101. There is. In the present invention, however, the rotatable portion 102 and the fixed portion 103 are separated by cutting or crushing the hinge 110.

The hinge 110 may be separated into two methods, but any one of the hinge 110 may be connected to the rotatable portion 102 and the portion connected to the fixed portion 103 may be connected to the hinge 110. The asbestos-containing portion 101 is to be kept isolated from the outside to maintain. For example, when cutting the part which becomes the center of rotation in the hinge, the part connected with the rotatable part 102 and the part connected with the fixed part 103 can maintain the connection.

5 is yet another view illustrating the separation of the connecting means after partial sealing with asbestos. There is a sealing means 106 provided to isolate the frame 100, the asbestos-containing portion 101 and the asbestos-containing portion contained in the frame from the outside, and has a shaft 120 to enable rotation. At this time, the shaft passes through at least a portion of the frame 100 and the asbestos-containing portion 101 included in the frame. In order to separate the possible part of the structure by the opening door, the shaft should be separated from the frame 100 and the asbestos-containing part 101 included in the frame.

By the way, in the case of the ordinary method, asbestos comes out from the asbestos-containing portion 101, which is penetrated, it is preferable to cut the shaft 120 itself. After cutting at least one of the upper axis or the lower axis, the frame 100 and the asbestos-containing portion 101 and the asbestos-containing portion included in the frame are separated and sized to separate from the outside. The method of separating the portion protruding upward or downward of the shaft 120 is not limited, but the portion remaining after cutting should not interfere with the asbestos-containing portion 101 from the outside.

6 is a flowchart illustrating a method of removing a structure containing asbestos as a whole. In step S11, the structure is dismantled from the wall, floor and ceiling. In the case of means for connecting the structure and the wall, floor, and ceiling, most of them do not penetrate through the asbestos-containing part 101, even if the connection is dismantled without a separate safety device or protective equipment there is no fear of asbestos leakage.

In step S12, the bonding means 105 is attached to the portion exposed to the outside of the asbestos-containing portion 101. It has been described above that among the methods of applying the adhesive means, the spray bond is sprayed on the exposed portion of the asbestos containing portion 101.

In step S13, the sealing means is attached to the bonding means to isolate the exposed portion of the asbestos-containing portion 101 from the outside. That is, the sealing means is attached to the exposed portion of the asbestos-containing portion 101 through the adhesive means to block contact with the outside. However, it is apparent that such adhesion should be performed before the adhesion means 105 is completely solidified and the adhesion strength is reduced.

In step S14, it is confirmed that the bonding means is solidified and the sealing means completely isolates the exposed part from the outside. If this is not preceded, asbestos may leak from the exposed portion of the asbestos-containing portion 101 in the subsequent separation process. If the adhesive means is completely solidified and completely isolated from the outside, go to step S16, and if the adhesive means is not completely solidified or the isolation from the outside is not complete, the process proceeds to step S15.

In step S15, since the adhesive means is not completely solidified or the isolation from the outside is not perfect, wait for a certain time for solidification or additionally attach the sealing means to the non-isolated asbestos containing portion 101. Through this process, the adhesive means is completely solidified and completely isolated from the outside so that the asbestos-containing portion 101 can be completely isolated from the outside.

In step S16, since the bonding means is completely solidified and completely isolated from the outside, the connecting means is separated or dismantled. The hinges, shafts, etc., as the connecting means have been described above. As a method of separating or dismantling the hinge or shaft, cutting and the like, and the part that was connected with the asbestos-containing part 101 even after separation or dismantling, maintains its shape and position so as to eliminate the risk of asbestos leakage.

In step S17, the structure is reduced to the outdoor size. By removing or dismantling the connecting means, it is possible to move through the general entrance of the room, so it is easily moved to the outside. The structure moved to the outdoors is discarded through a predetermined process in the case of asbestos-containing part.

7 is a perspective view showing a method of removing the fastening means according to an embodiment of the present invention. As can be seen in the figure, the connecting means 110 for connecting the asbestos-containing structure 102 is fixed by the fastening means 210 for engaging with the asbestos-containing structure. Fastening means are generally used screws.

Sealing around the insertion surface of the fastening means 210 with a sealing material to block the outside air. Preferably, the sealing material is vinyl, and a material having elastic restoring force such as rubber or silicone may be used.

The open end of the sealant is adhered to the structure 102 or the connecting means 110 by an adhesive means such as an adhesive around the insertion surface of the fastening means 210. Asbestos may leak when removing the fastening means, so that a negative pressure device not shown in the drawing is connected. The negative pressure unit is connected to the negative pressure hole 205 of the sealing means to completely absorb the asbestos scattered when the fastening means is removed. On the other hand, the tool 209 for screw removal generally uses a screwdriver, and the end of the tool 209 can enter the inside of the sealed space through the tool inserting portion 207 to remove the fastening means.

The fastening means remains in the sealed space after dismantling from the connecting means or the structure, in which the sealant is injected to completely disconnect the inside of the sealant from the outside. The sealant uses a viscous liquid, which hardens after a certain period of time and does not flow out after removal of the tool and the negative pressure. Asbestos does not leak to the outside even after dismantling the end of the sound pressure device and the tool after the sealing means is injected.

Also, in order to prevent the sealing material or the internal fastening means from being separated by vibration or impact when dismantling the structure and transporting it to the outside, the sealing material may be fixed to the structure with a tape or the like after the sealing agent is hardened to some extent.

8 is a perspective view showing the device for removing the fastening means shown in FIG. As shown in the drawings, the sealing member is coupled by a limited part or piece such as a ceiling, a wall, a bottom surface, etc., by an open end of the sealing means, and an adhesive means, and can be blocked from the outside.

That is, toilet partitions and doors contain asbestos, and screws, such as hinges, are connected, and asbestos can be scattered when dismantled. Therefore, asbestos is not scattered during dismantling of screws and the like and relates to a device for removing asbestos-containing structures that can be easily worked. Here, the sealing means 200, one end of which is open, a negative pressure hole 205 for connecting a sound pressure pressure maintaining the sealing means at a pressure lower than atmospheric pressure, a tool insertion hole 207 for removing the fastening means from the material containing asbestos ), Etc.

The sealing means 200 may be formed in a cylindrical shape at the other end, and may also be formed in a triangular pyramid shape having a pointed end, and the shape thereof may be varied. In addition, the sealing means is made of a transparent material that can be seen from the outside because the material is transparent. Inside the sealing means 200 is a negative pressure (not shown) is connected, asbestos is absorbed by the operation of the negative pressure while the fastening means such as screw 210 is disassembled. While the sealing means 200 may be deformed during operation of the negative pressure unit, there is no fear of deformation of the sealing means because a small capacity of the negative pressure is sufficient for the small size sealing means, and as shown in the drawing, one end of the sealing means Even if you work with your hands, there is no worry about the sealing means. The negative pressure hole 205 is located to connect the negative pressure to the sealing means, the negative pressure hole 205 may be formed anywhere in the sealing means.

 An insertion part 207 is formed to insert the work tool into the sealing means to remove the screw, which is a fastening means. The size of the insertion portion 207 is also sufficient to be formed to insert the tool, it may be located anywhere in the sealing means (200). However, it is preferable to be formed adjacent to the open surface of the sealing means to facilitate the separation or disassembly of the fastening means.

 Opening surface 203 of the sealing means may be a double-sided tape is attached around the open surface 203, or an adhesive means such as adhesive resin may be applied to seal the workpiece. Therefore, the sealing means 200 is easily attached to the fastening means coupling portion of the structure 101 containing asbestos to completely block the outside. In addition, even when the separation work such as the fastening means is finished to disassemble the sealing means 200 from the structure 100, the adhesive means having an adhesive force that does not tear or damage the sealing means 200 is preferable.

In addition, it is preferable that the tool inserting portion 207 stamps a pair of intersecting lines so as to facilitate the insertion of the tool while preventing the occurrence of gaps so that the intersection is formed in the middle at about half the thickness.

This process, when the structure is separated to carry the structure through the doorway, it is obvious that there is no process to enclose the vinyl throughout the room, saving the cost and time required for dismantling.

It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

1A to 1C are views for explaining a general structure including asbestos.

Figure 2 is a perspective view showing a sealed structure containing asbestos according to the present invention.

3 is a plan view of sealing a structure containing asbestos according to the present invention.

4 is a plan view showing a part of cutting the connection portion of the structure containing asbestos according to the present invention.

5 is a perspective view showing a part of the rotating shaft of the structure containing the asbestos according to the present invention.

6 is a flowchart illustrating a method of removing a structure containing asbestos as a whole.

7 is a perspective view showing a method of removing the fastening means according to the present invention.

8 is a perspective view showing the fastening means removal equipment according to the present invention.

Claims (9)

A method of removing a structure containing asbestos, in which at least a part of a structure and at least a portion of a wall, a floor, and a ceiling of a room are spaced apart and combined. Adhering the sealing means to the asbestos containing structure to isolate the asbestos containing structure from the outside; Separating the structure from one or more of the joined walls, floors, and ceilings; Dividing the structure into a plurality to reduce the size; And, Removing a structure containing asbestos, characterized in that it comprises; moving the reduced size to the outdoor structure. The method of claim 1, Asbestos-containing structure includes a connecting means for connecting a plurality of structures to each other and do not include asbestos, and reducing the size of the asbestos-containing structure, characterized in that for separating the connection means by separating a plurality of connecting means How to remove. The method of claim 1, The asbestos-containing structure includes a connecting means for connecting a plurality of structures to each other and non-asbestos, and a fastening means for coupling the connecting means and the structure, and reducing the size includes removing the fastening means and connecting means and the structure. Removing the asbestos-containing structure, characterized in that it comprises the step of separating and disconnecting. The method according to claim 2 or 3, And the step of isolating includes attaching the bonding means to the structure and adhering the sealing means to the structure through the bonding means. The method according to claim 2 or 3, The connecting means is a method for removing an asbestos-containing structure, characterized in that it comprises at least one of a hinge, a shaft of the sliding door, the uneven portion of the sliding door. The method of claim 4, wherein Attaching the adhesive means is a method of removing a structure containing asbestos, characterized in that the spray is applied to the structure by spraying the bond. The method of claim 4, wherein The step of adhering is a method of removing a structure containing asbestos, characterized in that the vinyl sheet is attached to the structure through the sprayed adhesive means. The method of claim 4, wherein The step of adhering is a method of removing a structure containing asbestos, characterized in that the vinyl sheet is attached to the structure through the sprayed adhesive means. The method of claim 8, Prior to the step of removing the fastening means removal tool and the negative pressure, the step of injecting a sealant into the sealing portion; removing asbestos-containing structure comprising a.

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