JP5833468B2 - Protective body for buried objects - Google Patents

Description

  The present invention makes it possible to detect olfactory or visually that a long buried object such as a gas pipe is buried in the ground, and protect the long buried object from being damaged by a drilling machine. About the body.

  When embedding gas pipes, water pipes, electric / communication cables, etc. in the ground, it is necessary to embed them at a certain depth or more from the ground surface in order to protect these longitudinal buried objects. The long buried object buried in the ground may be damaged by the excavating machine.

  Therefore, the operator who performs excavation work such as underground boring and excavation is allowed to detect that the longitudinal object is embedded in the ground by olfactory or visual detection, and the longitudinal object is removed from the excavating machine. Methods have been proposed to protect against damage by

  For example, Patent Literature 1 discloses a method of embedding a capsule enclosing an odorant fluid, a coloring fluid, or a paint in the ground above a longitudinal embedded object. According to the method disclosed in Patent Document 1, a worker who performs an excavation work has a long embedded object embedded in the ground by an odor or color emitted when the capsule is broken by an excavating machine. Can be detected.

  Patent Document 2 discloses an underground buried protection plate that is buried in the ground above the longitudinal buried object and protects the longitudinal buried object from being damaged by the excavating machine. In this underground buried object protection plate, a container in which a water-soluble colorant is sealed is fixed on the plate surface. According to the underground buried object protection plate disclosed in Patent Document 2, an operator who performs excavation work is a colorant that is released when the container is destroyed by an excavating machine, or the colorant that is discharged into water. It can be detected by the dissolved colored water that the long buried object is buried in the ground.

Japanese Patent Laid-Open No. 4-86586 JP 2006-83938 A

  However, none of the techniques disclosed in Patent Documents 1 and 2 is sufficient in terms of enabling olfactory or visual detection that a longitudinal embedded object is embedded in the ground. That is, in the techniques disclosed in Patent Documents 1 and 2, a force is directly applied from the excavating machine to the capsule or the container in which a coloring agent that enables olfactory or visual detection is enclosed. Since the colorant and the like are released by destroying the capsule and the container, for example, when the capsule and the container are excavated from the lower side together with earth and sand by a drilling machine, The container is not destroyed, so that no colorant or the like is released.

  In this way, when the colorant or the like is not released, it is not possible to detect olfactory or visual that the long buried object is buried in the ground. Can not protect against being damaged by.

  It is an object of the present invention to make it possible to detect olfactory or visually that a long buried object such as a gas pipe is buried in the ground, and to protect the long buried object from being damaged by a drilling machine. It is to provide a buried protective body that can be used.

The present invention is a buried object cover body that covers a long buried object buried in the ground from the outside, and has a buried part that is folded so that a part thereof overlaps,
A sheet body laminated on the buried object cover body so as to cover at least the folded portion;
A odorant contained in the sheet body, the odor substance being covered with an outer skin layer, and an external force is applied to the embedded object cover body, and at least the folding portion is deformed, whereby the outer skin layer is destroyed. And a odorant from which the odorous substance is released when the odorous substance is released.

Moreover, in the buried object protection body of the present invention, the sheet body is:
An adhesive layer that includes the odorant and is adhered to the buried object cover body; and
A gas barrier layer having a gas barrier property and laminated on the adhesive layer.

Further, in the buried object protection body of the present invention, the sheet body is made of a material having flexibility and elasticity,
The outer skin layer of the odorant is destroyed by applying a stress due to elastic deformation of the sheet body.

Further, in the buried object protection body of the present invention, the sheet body is made of a flexible material having holes,
The odorant is contained in the sheet body in a state of being filled in the pores.

Further, in the buried object protection body of the present invention, the sheet body protrudes outward from the surface, and a protrusion having an internal space is formed,
The odorant is filled in the internal space.

Further, the present invention is an embedded object cover body that covers a longitudinally embedded object embedded in the ground from the outside, and has an embedded object cover body that is folded so that a part thereof overlaps,
A sewing thread for sewing the folding portion;
An odorant attached to the sewing thread and coated with an odor substance by an outer skin layer, and when the external thread is applied to the buried object cover body and the sewing thread is cut, the outer skin layer is destroyed. And a odorant from which the odorous substance is diffused.

Further, the present invention is an embedded object cover body that covers a longitudinally embedded object embedded in the ground from the outside, and has an embedded object cover body that is folded so that a part thereof overlaps,
A printed layer that is printed so as to cover at least the folded portion and is formed on the buried object cover body;
An odorant contained in the printed layer and having an odor substance coated with an outer skin layer, and an external force is applied to the buried object cover body, and at least the folded portion is deformed, whereby the outer skin layer is destroyed. And a odorant from which the odorous substance is released when the odorous substance is released.

Further, the present invention is an embedded object cover body that covers a longitudinally embedded object embedded in the ground from the outside, and has an embedded object cover body that is folded so that a part thereof overlaps,
A bag body provided on the buried object cover body so as to cover at least the folding portion;
A odorant filled in the bag body,
When an external force is applied to the buried object cover body and at least the folding portion is deformed, the odor emitted from the odorant is diffused when the bag body is destroyed. It is a buried protective body characterized by the following.

Further, the present invention is an embedded object cover body that covers a longitudinally embedded object embedded in the ground from the outside, and has an embedded object cover body that is folded so that a part thereof overlaps,
An adhesive layer provided by adhering to the overlapping portion in the folded portion;
An odorant contained in the adhesive layer and coated with an odor substance by an outer skin layer, and an external force is applied to the embedded object cover body, and at least the folding portion is deformed, whereby the outer skin layer is destroyed. And a odorant from which the odorous substance is released when the odorous substance is released.

Further, the present invention is an embedded object cover body that covers a longitudinally embedded object embedded in the ground from the outside, and has an embedded object cover body that is folded so that a part thereof overlaps,
A sheet body laminated on the buried object cover body so as to cover at least the folded portion;
A coloring agent that is contained in the sheet body and is coated with a colored substance covered with an outer skin layer, and an external force is applied to the embedded object cover body, and at least the folded portion is deformed, whereby the outer skin layer is destroyed. And a coloring agent from which the coloring substance is diffused.

  According to the present invention, the buried object protector is buried between a longitudinal buried object such as a gas pipe buried in the ground and the ground surface, and the buried object cover body, the sheet body, and the odorant. Including. The buried object cover body covers a long buried object such as a gas pipe from the outside (upper side), and has a folded portion that is folded in the longitudinal direction and partially folded. The sheet body is laminated on the embedded object cover body so as to cover at least the folded portion. The odorant is contained in the sheet body, and the odor substance is covered with the outer skin layer. In this odorant, when an external force is applied to the buried object cover body and at least the folded portion is deformed, the odorous substance is diffused when the outer skin layer is destroyed.

  In the buried object protection body of the present invention configured as described above, for example, even when the buried object protection body is excavated from the lower side together with the earth and sand by the excavating machine, when it is dug up by the excavator or bucket of the excavation machine When the external force is applied to the buried object cover body and at least the folding part is deformed, the outer skin layer of the odorant is destroyed and the odorous substance is diffused. As a result, it is possible to detect olfactory substances by releasing odorous substances, and to prevent damage to longitudinal objects by excavating machinery. Can do.

  According to the invention, the sheet body includes the odorant, and is provided by adhering on the buried cover body, and has a gas barrier property and is laminated on the adhesive layer. It is realizable by the structure including. In the buried object protection body having such a sheet body, an external force applied when excavated by the excavator or bucket of the excavating machine is applied to the buried object cover body, and at least the folding portion is deformed, whereby the adhesive layer of the sheet body is obtained. Is peeled off from the embedded object cover body, and the peel layer of the adhesive layer from the embedded object cover body destroys the outer skin layer of the odorant contained in the adhesive layer, thereby releasing the odorous substance. As a result, it is possible to detect olfactoryly that a long buried object such as a gas pipe is buried in the ground by the emission of odorous substances.

  According to the invention, the sheet body is made of a material having flexibility and elasticity. In the buried object protection body having such a sheet body, an external force when digging up by the excavator or bucket of the excavating machine is applied to the buried object cover body, and at least the folding part is deformed, whereby the sheet body is elastically deformed. The outer layer of the odorant contained in the sheet body is destroyed by the stress due to the elastic deformation of the sheet body, and the odorous substance is diffused. As a result, it is possible to detect olfactoryly that a long buried object such as a gas pipe is buried in the ground by the emission of odorous substances.

  According to the invention, the sheet body is made of a flexible material having holes. And a odorant is contained in a sheet | seat body in the state with which it filled with the said void | hole. In the buried object protector configured as described above, an external force applied when excavated by the excavator or bucket of the excavating machine is applied to the buried object cover body, and at least the folding part is deformed, whereby the sheet body is deformed. Due to the stress caused by the deformation of the sheet body, the outer skin layer of the odorant contained in the sheet body is destroyed and the odorous substance is diffused. In addition, since the odorant is filled in the pores of the sheet body, in the static load state, the vacancies absorb the force, and the outer layer of the odorant is destroyed by earth pressure or the like. Can be prevented.

  According to the invention, the sheet body is formed with a protruding portion that protrudes outward from the surface and has an internal space. And a odorant is contained in a sheet | seat body in the state with which the said interior space was filled. In the buried object protector configured as described above, an external force applied when excavated by the excavator or bucket of the excavating machine is applied to the buried object cover body, and at least the folding part is deformed, whereby the sheet body is deformed. Due to the stress caused by the deformation of the sheet body, the projecting portion is destroyed, and the outer layer of the odorant filled in the inner space of the projecting portion is destroyed, and the odor substance is diffused. In addition, since the internal space of the protrusion is filled with the odorant, it is possible to prevent the outer layer of the odorant from being destroyed by earth pressure or the like in a static load state.

  Further, according to the present invention, the buried object protection body is buried between a longitudinal buried object such as a gas pipe buried in the ground and the ground surface, and the buried object cover body, the sewing thread, and the odor generation. Agent. The buried object cover body covers a long buried object such as a gas pipe from the outside (upper side), and has a folded portion that is folded in the longitudinal direction and partially folded. The folded portion is sewn with a sewing thread. The odorant is attached to the sewing thread and the odorous substance is covered with the outer skin layer. In this odorant, when an external force is applied to the buried object cover body and at least the folding portion is deformed and the sewing thread is cut, the outer skin layer is destroyed and the odorous substance is diffused.

  In the buried object protection body of the present invention configured as described above, for example, even when the buried object protection body is excavated from the lower side together with the earth and sand by the excavating machine, when it is dug up by the excavator or bucket of the excavation machine When an external force is applied to the buried object cover body and at least the folding part is deformed to cut the sewing thread, the outer skin layer is destroyed and the odor substance is diffused. As a result, it is possible to detect olfactory substances by releasing odorous substances, and to prevent damage to longitudinal objects by excavating machinery. Can do.

  Further, according to the present invention, the buried object protector is buried between a long buried object such as a gas pipe buried in the ground and the ground surface, and the buried object cover body, the printed layer, and the odor generation. Agent. The buried object cover body covers a long buried object such as a gas pipe from the outside (upper side), and has a folded portion that is folded in the longitudinal direction and partially folded. The printed layer is printed on the embedded object cover body so as to cover at least the folded portion. The odorant is contained in the printed layer, and the odorous substance is coated with the outer skin layer. In this odorant, an external force is applied to the embedded cover body, and at least the folded portion is deformed, so that the printed layer is deformed, and the stress caused by the deformation of the printed layer causes the odorant contained in the printed layer. The outer skin layer is destroyed and odorous substances are released.

  In the buried object protection body of the present invention configured as described above, for example, even when the buried object protection body is excavated from the lower side together with the earth and sand by the excavating machine, when it is dug up by the excavator or bucket of the excavation machine When an external force is applied to the buried object cover body and at least the folded portion is deformed to deform the printed layer, the outer skin layer is destroyed and the odorous substance is diffused. As a result, it is possible to detect olfactory substances by releasing odorous substances, and to prevent damage to longitudinal objects by excavating machinery. Can do.

  Further, according to the present invention, the buried object protector is buried between a long buried object such as a gas pipe buried in the ground and the ground surface, and the buried object cover body, the bag body, and the odor generation. Agent. The buried object cover body covers a long buried object such as a gas pipe from the outside (upper side), and has a folded portion that is folded in the longitudinal direction and partially folded. The bag body is provided on the buried object cover body so as to cover at least the folded portion. And the odorant is filled in the inside of the said bag body.

  In the buried object protection body of the present invention configured as described above, for example, even when the buried object protection body is excavated from the lower side together with the earth and sand by the excavating machine, when it is dug up by the excavator or bucket of the excavation machine When an external force is applied to the buried object cover body and at least the folding part is deformed to break the bag body, the odor component emitted from the odorant is diffused. As a result, it is possible to detect olfactory components by diffusing odorous components, and to prevent damage to the long buried object by the excavating machine. Can do.

  Further, according to the present invention, the buried object protector is buried between a longitudinal buried object such as a gas pipe buried in the ground and the ground surface, and the buried object cover body, the adhesive layer, and the odor generation. Agent. The buried object cover body covers a long buried object such as a gas pipe from the outside (upper side), and has a folded portion that is folded in the longitudinal direction and partially folded. The adhesive layer is provided so as to adhere to the overlapping portion in the folded portion. And a odorant is contained in the said adhesion layer, and the odorous substance is coat | covered with the outer skin layer. This odorant is applied with an external force to the buried object cover body, and at least the folded portion is deformed, whereby the adhesive layer is peeled off from the overlapping portion in the folded portion, and the peeling force from the overlapping portion of the adhesive layer is The outer layer of the odorant contained in the layer is destroyed, and odorous substances are released.

  In the buried object protection body of the present invention configured as described above, for example, even when the buried object protection body is excavated from the lower side together with the earth and sand by the excavating machine, when it is dug up by the excavator or bucket of the excavation machine When the adhesive layer is peeled off from the overlapping portion of the folded portion by applying at least the external force to the embedded object cover body and deforming at least the folded portion, the outer skin layer is destroyed and the odorous substance is diffused. As a result, it is possible to detect olfactory substances by releasing odorous substances, and to prevent damage to longitudinal objects by excavating machinery. Can do.

  Further, according to the present invention, the buried object protector is buried between a longitudinal buried object such as a gas pipe buried in the ground and the ground surface, and the buried object cover body, the sheet body, and the colorant. Including. The buried object cover body covers a long buried object such as a gas pipe from the outside (upper side), and has a folded portion that is folded in the longitudinal direction and partially folded. The sheet body is laminated on the embedded object cover body so as to cover at least the folded portion. And a coloring agent is contained in a sheet | seat body, and a coloring substance is coat | covered with the outer skin layer. The coloring agent is diffused when an external force is applied to the embedded cover body and at least the folded portion is deformed to break the outer skin layer.

  In the buried object protection body of the present invention configured as described above, for example, even when the buried object protection body is excavated from the lower side together with the earth and sand by the excavating machine, when it is dug up by the excavator or bucket of the excavation machine When the external force is applied to the buried object cover body and at least the folded portion is deformed, the outer layer of the colorant is destroyed and the colored substance is diffused. As a result, it is possible to visually detect that a long buried object such as a gas pipe is buried in the ground by releasing colored substances, and protect the long buried object from being damaged by the excavating machine. Can do.

It is a partial perspective view which shows the buried object protection body 100 which concerns on 1st Embodiment of this invention. FIG. 2 is a cross-sectional view showing a state in which the buried object protection body 100 shown in FIG. 1 is buried above a longitudinal buried object 102. 3 is an enlarged cross-sectional view of a part of the buried object protection body 100. FIG. It is a figure which expands and shows the folding part 11 in the buried object cover body 1 of the buried object protection body 100. FIG. It is a figure which shows the buried object protection body 200 which concerns on 2nd Embodiment of this invention. It is a figure which shows the buried object protection body 300 which concerns on 3rd Embodiment of this invention. It is a figure which shows the buried object protection body 400 which concerns on 4th Embodiment of this invention. It is a figure which shows the buried object protection body 500 which concerns on 5th Embodiment of this invention. It is a figure which shows the buried object protection body 600 which concerns on 6th Embodiment of this invention. It is a figure which shows the buried object protection body 700 which concerns on 7th Embodiment of this invention. It is a figure which shows the buried object protection body 800 which concerns on 8th Embodiment of this invention. It is a figure which shows the buried object protection body 900 which concerns on 9th Embodiment of this invention.

  FIG. 1 is a partial perspective view showing the buried object protection body 100 according to the first embodiment of the present invention, and FIG. 2 shows the buried object protection body 100 shown in FIG. It is sectional drawing which shows the state made. FIG. 3 is an enlarged cross-sectional view of a part of the buried object protection body 100. FIG. 4 is an enlarged view showing the folding portion 11 of the buried object cover body 1 of the buried object protection body 100.

  The buried object protector 100 according to the present embodiment is buried between a long buried object (hereinafter referred to as “longitudinal buried object”) 102 such as a gas pipe buried in the underground 101 and the ground surface. And formed so as to extend along the longitudinal direction of the longitudinal embedded object 102. The buried object protection body 100 includes a buried object cover body 1, a sheet body 2, and a sensory agent 3.

  The embedded object cover body 1 covers the longitudinal embedded object 102 from the outside (above), and extends along the longitudinal direction of the longitudinal embedded object 102 and is formed in a belt shape. The embedded object cover body 1 is obtained, for example, by laminating the front and back surfaces of a filament cloth with a thermoplastic resin. Examples of the thermoplastic resin include polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyvinyl acetate, and acrylic resin. In this embodiment, polyethylene is polyethylene. Furthermore, this buried object cover body 1 has a folded portion 11 that is folded in the longitudinal direction and partially folded. In the buried object cover body 1, the folding part 11 is heat-sealed.

  The sheet body 2 is laminated on the embedded object cover body 1 so as to cover at least the folding part 11 of the embedded object cover body 1. In the present embodiment, the sheet body 2 is laminated over the entire surface in the longitudinal direction on the surface of the buried object cover body 1 on the ground surface side. Further, in the present embodiment, as shown in FIG. 3, the sheet body 2 includes an adhesive layer 21 adhered to the embedded object cover body 1, and a gas barrier layer having gas barrier properties and laminated on the adhesive layer 21. 22.

  The pressure-sensitive adhesive layer 21 is formed of a general pressure-sensitive adhesive such as an acrylic pressure-sensitive adhesive, a rubber-based pressure-sensitive adhesive, a silicon-based pressure-sensitive adhesive, or a urethane-based pressure-sensitive adhesive. In the present embodiment, the adhesive layer 21 is formed of an acrylic adhesive.

  The gas barrier layer 22 is made of polyamides, polyvinyl alcohol, polyvinylidene chloride, ethylene-vinyl alcohol copolymer resin, polypropylene, polyethylene terephthalate, linear low density polyethylene, multilayer coextruded product, metal foil, metal oxide, metal vapor deposited product, etc. Formed of a common gas barrier material. Examples of multilayer coextruded products include nylon / nylon / adhesive layer / polyethylene / polyethylene, nylon / ethylene-vinyl alcohol / nylon / adhesive layer / polyethylene, nylon / adhesive layer / nylon / adhesive layer / polyethylene, and the like. Examples of the metal oxide or metal vapor-deposited product include vapor-deposited products obtained by vapor-depositing silica, alumina, and aluminum on resin materials such as polyethylene terephthalate and polyvinyl alcohol. In this embodiment, the gas barrier layer 22 is formed of a silica or alumina vapor-deposited product.

  The sensory agent 3 is a odorant or a colorant, and is contained in the adhesive layer 21 of the sheet body 2 and is coated with an outer skin layer of an olfactory detectable odor substance or a visually detectable color substance. Capsule body. The outer skin layer is made of, for example, gelatin or hydroxypropylmethylcellulose.

  The odorous substances include benzyl alcohol, menthol, acetaldehyde, benzaldehyde, cadaverine, putrescine, pyridine, skatole, trimethylamine, ethyl acetate, ethyl butyrate, anethole, anisole, dihydrojasmon, γ-decalactone, γ-nonalactone, camphor, ethanethiol , Aromatic compounds such as methanethiol, ammonia, methyl mercaptan, hydrogen sulfide, methyl sulfide, methyl disulfide, trimethylamine, acetaldehyde, propionaldehyde, normal butyraldehyde, isobutyraldehyde, normal valeraldehyde, isovaleraldehyde, isobutanol, ethyl acetate , Methyl isobutyl ketone, toluene, styrene, xylene, propionic acid, normal butyric acid, normal valeric acid, isovaleric acid And so on.

  Examples of the coloring substance include inorganic pigments such as zinc white, lead white, lithopone, titanium dioxide, red lead, iron oxide red, yellow lead, zinc yellow, ultramarine blue, prussian blue, and carbon black, azo pigments, and isoindolinone. And organic dyes such as quinophthalone, anthraquinone, anthrone, xanthene, diketopyrrolopyrrole, perylene, perinone, quinacridone, indigoid, dioxazine, phthalocyanine, azomethine, and various dyes recorded in the color index.

  The sensory agent 3 coated with an outer skin layer with an odorous substance or a coloring substance as described above is applied when an external force is applied to the buried object cover 1 and the outer skin layer is destroyed by deforming at least the folding part 11. Configured to dissipate odorous substances or colored substances.

  In the buried object protection body 100 of the present embodiment configured as described above, for example, when the buried object protection body 100 is excavated from the lower side (longitudinal buried object 102 side) together with the earth and sand by the excavation machine. The external force when digging up by the excavator or bucket is applied to the buried object cover body 1, and at least the folding portion 11 is deformed, and the fusion of the overlapping portion is peeled off. Then, the adhesive layer 21 of the sheet body 2 is peeled off from the embedded object cover body 1 by the peeling force at which the fusion of the overlapping portion of the folding part 11 is peeled off, and the peeling force of the adhesive layer 21 from the embedded object cover body 1 The outer skin layer of the sensory agent 3 contained in the adhesive layer 21 is destroyed, and the odorous substance or the colored substance is diffused. As a result, it is possible to detect olfactory or visually that the long buried object 102 is buried in the ground 101 by the emission of odorous substances or colored substances, and the long buried object 102 is damaged by the excavating machine. Can be protected.

  FIG. 5 is a view showing a buried object protection body 200 according to the second embodiment of the present invention. FIG. 5A is a partial perspective view showing the buried object protection body 200, and FIG. 5B is an enlarged cross-sectional view of a part of the buried object protection body 200. The buried object protection body 200 of the present embodiment is similar to the above-described buried object protection body 100, and corresponding portions are denoted by the same reference numerals and description thereof is omitted. The buried object protection body 200 of the present embodiment is the same as the buried object protection body 100 except that the configuration of the sheet body 201 is different from the configuration of the sheet body 2 described above.

  The sheet body 201 is laminated on the embedded object cover body 1 so as to cover at least the folded portion 11 of the embedded object cover body 1. In the present embodiment, the sheet body 201 is laminated over the entire surface in the longitudinal direction on the surface of the buried object cover body 1 on the ground surface side. In the present embodiment, the sheet body 201 is made of a material having flexibility and elasticity. And the tensile elongation rate is set so that the length when the sheet | seat body 201 is extended may become the length more than the full length of the embedded object cover body 1 which peeled the overlap part in the folding part 11. FIG. As a material constituting such a sheet body 201, polyamides, polyvinyl alcohol, polyvinylidene chloride, ethylene-vinyl alcohol copolymer resin, polypropylene, polyethylene terephthalate, linear low density polyethylene, as with the gas barrier layer 22 described above. And general gas barrier materials such as multilayer coextruded products, metal foils, metal oxides or metal vapor-deposited products. Examples of multilayer coextruded products include nylon / nylon / adhesive layer / polyethylene / polyethylene, nylon / ethylene-vinyl alcohol / nylon / adhesive layer / polyethylene, nylon / adhesive layer / nylon / adhesive layer / polyethylene, and the like. Examples of the metal oxide or metal vapor-deposited product include vapor-deposited products obtained by vapor-depositing silica, alumina, and aluminum on resin materials such as polyethylene terephthalate and polyvinyl alcohol. In the present embodiment, the sheet body 201 is formed of a silica or alumina vapor-deposited product.

  In this embodiment, a sensory agent 202 is contained in the sheet body 201 as described above. The sheet body 201 containing the sensory agent 202 can be manufactured by kneading and molding a resin and the sensory agent 202. The sensory agent 202 contained in the sheet body 201 is a capsule body that is configured in the same manner as the sensory agent 3 included in the above-described buried object protection body 100 and is coated with an odor substance or a colored substance by an outer skin layer.

  In the buried object protection body 200 of the present embodiment configured as described above, an external force when being dug up by the excavator or bucket of the excavating machine is applied to the buried object cover body 1, and at least the folding part 11 is deformed. The fusion at the overlapping portion is peeled off. Then, the sheet body 201 is elastically deformed by a peeling force that peels off the fusion of the overlapping portions of the folded portions 11, and the outer skin layer of the sensory agent 202 contained in the sheet body 201 is caused by the stress due to the elastic deformation of the sheet body 201. Is destroyed and odorous substances or colored substances are released. As a result, it is possible to detect that the long buried object 102 is buried in the ground olfactory or visually by the emission of odorous substances or colored substances, and the long buried object 102 is damaged by the excavating machine. Can be protected.

  FIG. 6 is a diagram showing a buried object protection body 300 according to the third embodiment of the present invention. FIG. 6A is a partial perspective view showing the buried object protection body 300, and FIG. 6B is an enlarged sectional view of a part of the buried object protection body 300. The buried object protection body 300 of the present embodiment is similar to the above-described buried object protection body 100, and corresponding portions are denoted by the same reference numerals and description thereof is omitted. The buried object protection body 300 of the present embodiment is the same as the buried object protection body 100 except that the configuration of the sheet body 301 is different from the configuration of the sheet body 2 described above.

  The sheet body 301 is laminated on the embedded object cover body 1 so as to cover at least the folded portion 11 of the embedded object cover body 1. In the present embodiment, the sheet body 301 is laminated on the entire back surface of the embedded object cover body 1 on the longitudinal embedded object 102 side in the longitudinal direction. In the present embodiment, the sheet body 301 is made of a flexible material having holes, and more specifically, is a resin air packing in which air is injected into the internal space. As a material constituting such a sheet body 301, as with the gas barrier layer 22 described above, polyamides, polyvinyl alcohol, polyvinylidene chloride, ethylene-vinyl alcohol copolymer resin, polypropylene, polyethylene terephthalate, linear low density polyethylene And general gas barrier materials such as multilayer coextruded products, metal foils, metal oxides or metal vapor-deposited products. Examples of multilayer coextruded products include nylon / nylon / adhesive layer / polyethylene / polyethylene, nylon / ethylene-vinyl alcohol / nylon / adhesive layer / polyethylene, nylon / adhesive layer / nylon / adhesive layer / polyethylene, and the like. Examples of the metal oxide or metal vapor-deposited product include vapor-deposited products obtained by vapor-depositing silica, alumina, and aluminum on resin materials such as polyethylene terephthalate and polyvinyl alcohol. In the present embodiment, the sheet body 301 is formed of a silica or alumina vapor-deposited product.

  In the present embodiment, the sheet material 301 as described above is filled with the sensory agent 302 in the internal space into which air is injected (in the hole). The sensory agent 302 is a capsule body that is configured in the same manner as the sensory agent 3 included in the above-described buried object protector 100 and is coated with an odorous substance or a coloring substance by an outer skin layer.

  In the buried object protection body 300 of the present embodiment configured as described above, an external force when being dug up by the excavator or bucket of the excavating machine is applied to the buried object cover body 1 so that at least the folding part 11 is deformed. The fusion at the overlapping portion is peeled off. The sheet body 301 is deformed and the air packing is destroyed by the peeling force that peels off the fusion of the overlapping portions of the folded portions 11, and the outer skin layer of the sensory agent 302 is destroyed by the stress caused by the deformation of the sheet body 301. As a result, odorous substances or colored substances are released. As a result, it is possible to detect that the long buried object 102 is buried in the ground olfactory or visually by the emission of odorous substances or colored substances, and the long buried object 102 is damaged by the excavating machine. Can be protected. Further, since the air packing in which the air of the sheet body 301 is injected is filled with the sensory agent 302, the outer skin layer of the sensory agent 302 is prevented from being destroyed by earth pressure or the like in a static load state. can do.

  FIG. 7 is a view showing a buried object protection body 400 according to the fourth embodiment of the present invention. FIG. 7A is a partial perspective view showing the buried object protection body 400, and FIG. 7B is an enlarged cross-sectional view of a part of the buried object protection body 400. The buried object protector 400 according to the present embodiment is similar to the above-described buried object protector 100, and corresponding portions are denoted by the same reference numerals and description thereof is omitted. The buried object protection body 400 of this embodiment is the same as the buried object protection body 100 except that the configuration of the sheet body 401 is different from the configuration of the sheet body 2 described above.

  The sheet body 401 is laminated on the embedded object cover body 1 so as to cover at least the folded portion 11 of the embedded object cover body 1. In the present embodiment, the sheet body 401 is laminated on the entire back surface of the embedded object cover body 1 on the longitudinal embedded object 102 side in the longitudinal direction. In this embodiment, the sheet body 401 is made of a flexible material having holes, and more specifically, is a member formed in a sponge shape having a plurality of holes. Examples of the material constituting the sheet 401 include foams of resins such as polyethylene and polyurethane, foams of rubber such as natural rubber, chloroprene rubber, ethylene-propylene rubber, ethylene-propylene-diene rubber, nitrile rubber, and silicon rubber. The body can be mentioned. In the present embodiment, the sheet body 401 is formed of a polyurethane or ethylene-propylene-diene rubber foam.

  In the present embodiment, the sensory agent 402 is filled in the holes of the sheet body 401 as described above. The sensory agent 402 is configured in the same manner as the sensory agent 3 included in the above-described buried object protection body 100, and is a capsule body in which an odor substance or a coloring substance is covered with an outer skin layer.

  In the buried object protection body 400 of the present embodiment configured as described above, an external force when being dug up by the excavator or bucket of the excavating machine is applied to the buried object cover body 1 so that at least the folding portion 11 is deformed. The fusion at the overlapping portion is peeled off. Then, the sheet body 401 is deformed by a peeling force that peels off the fusion of the overlapping portion of the folded portion 11, and the stress due to the deformation of the sheet body 401 causes the outside of the sensory agent 402 to be filled in the pores of the sheet body 401. The skin layer is destroyed and odorous or colored substances are released. As a result, it is possible to detect that the long buried object 102 is buried in the ground olfactory or visually by the emission of odorous substances or colored substances, and the long buried object 102 is damaged by the excavating machine. Can be protected. In addition, since the sensory agent 402 is filled in the pores of the sheet body 401, the pores absorb force in a static load state, and the outer skin layer of the sensory agent 402 is destroyed by earth pressure or the like. Can be prevented.

  FIG. 8 is a view showing a buried object protection body 500 according to the fifth embodiment of the present invention. FIG. 8A is a partial perspective view showing the buried object protection body 500, and FIG. 8B is an enlarged cross-sectional view of a part of the buried object protection body 500. The buried object protection body 500 of this embodiment is similar to the above-described buried object protection body 100, and corresponding portions are denoted by the same reference numerals and description thereof is omitted. The buried object protection body 500 of this embodiment is the same as the buried object protection body 100 except that the configuration of the sheet body 501 is different from the configuration of the sheet body 2 described above.

  The sheet body 501 is laminated on the embedded object cover body 1 so as to cover at least the folded portion 11 of the embedded object cover body 1. In the present embodiment, the sheet body 501 is laminated over the entire surface in the longitudinal direction on the surface of the buried object cover body 1 on the ground surface side. In the present embodiment, the sheet body 501 includes a flat plate-like base material 5011 and a protruding portion 5012 that protrudes outward (upward) from the surface of the base material 5011 and has an internal space. . As a material constituting such a sheet body 501, like the above-described gas barrier layer 22, polyamides, polyvinyl alcohol, polyvinylidene chloride, ethylene-vinyl alcohol copolymer resin, polypropylene, polyethylene terephthalate, linear low density polyethylene And general gas barrier materials such as multilayer coextruded products, metal foils, metal oxides or metal vapor-deposited products. Examples of multilayer coextruded products include nylon / nylon / adhesive layer / polyethylene / polyethylene, nylon / ethylene-vinyl alcohol / nylon / adhesive layer / polyethylene, nylon / adhesive layer / nylon / adhesive layer / polyethylene, and the like. Examples of the metal oxide or metal vapor-deposited product include vapor-deposited products obtained by vapor-depositing silica, alumina, and aluminum on resin materials such as polyethylene terephthalate and polyvinyl alcohol. In the present embodiment, the sheet body 501 is formed of a silica or alumina vapor-deposited product.

  In this embodiment, the sensory agent 502 is filled in the internal space of the protruding portion 5012 of the sheet body 501 as described above. The sensory agent 502 is a capsule body that is configured in the same manner as the sensory agent 3 included in the above-described buried object protector 100 and is coated with an odorous substance or a colored substance by an outer skin layer.

  In the buried object protection body 500 of the present embodiment configured as described above, an external force when being dug up by the excavator or bucket of the excavating machine is applied to the buried object cover body 1, and at least the folding part 11 is deformed. The fusion at the overlapping portion is peeled off. Then, the sheet body 501 is deformed by the peeling force that peels off the fusion of the overlapping portions of the folding portions 11, and the protrusion 5012 is destroyed by the stress due to the deformation of the sheet body 501, and the internal space of the protrusion 5012 The outer skin layer of the sensory agent 502 filled in is broken and odorous substances or colored substances are released. As a result, it is possible to detect that the long buried object 102 is buried in the ground olfactory or visually by the emission of odorous substances or colored substances, and the long buried object 102 is damaged by the excavating machine. Can be protected. In addition, since the inner space of the protrusion 5012 is filled with the sensory agent 502, it is possible to prevent the outer skin layer of the sensory agent 502 from being destroyed by earth pressure or the like in a static load state.

  FIG. 9 is a view showing a buried object protection body 600 according to the sixth embodiment of the present invention. FIG. 9A is a partial perspective view showing the buried object protection body 600, and FIG. 9B is a buried object protection body when cut along the cutting plane line AA of FIG. 9A. FIG. The buried object protection body 600 of the present embodiment is similar to the above-described buried object protection body 100, and corresponding portions are denoted by the same reference numerals and description thereof is omitted.

  The buried object protection body 600 according to the present embodiment is buried between the long buried object 102 buried in the ground 101 and the ground surface, and the buried object cover body 1, the sewing thread 601, and the sensory agent 602. including. The embedded object cover body 1 covers the longitudinal embedded object 102 from the outside (upper side), and has a folded portion 11 that is folded in the longitudinal direction and partially folded.

  In the above-described buried object cover body 1, the folding part 11 is heat-sealed and fixed. However, in this embodiment, the folding part 11 is sewn with the sewing thread 601. As a material constituting such a sewing thread 601, natural fibers such as cotton, hemp, hair, silk, Tencel (registered trademark), rayon, polynosic, cupra, acetate, triacetate, promix, acrylic, polyester, nylon, Examples thereof include chemical fibers such as vinylon and polyurethane. In the present embodiment, the sewing thread 601 is formed of cotton or various chemical fibers.

  In the present embodiment, a sensory agent 602 is attached to the sewing thread 601 as described above. The sensory agent 602 is a capsule body that is configured in the same manner as the sensory agent 3 included in the above-described buried object protection body 100 and is coated with an odorous substance or a coloring substance with an outer skin layer. When the external thread is applied to the buried object cover body 1 and the sewing thread 601 is cut by deforming at least the folding part 11, the sensory agent 602 destroys the outer skin layer and causes odorous substances or colored substances to be generated. Configured to be dissipated.

  In the buried object protection body 600 of the present embodiment configured as described above, an external force when being dug up by the excavator or bucket of the excavating machine is applied to the buried object cover body 1 so that at least the folding part 11 is deformed. When the sewing thread 601 is cut by this, the outer skin layer of the sensory agent 602 is destroyed, and the odorous substance or the coloring substance is diffused. As a result, it is possible to detect olfactory or visually that the long buried object 102 is buried in the ground 101 by the emission of odorous substances or colored substances, and the long buried object 102 is damaged by the excavating machine. Can be protected.

  FIG. 10 is a view showing a buried object protection body 700 according to the seventh embodiment of the present invention. FIG. 10A is a partial perspective view showing the buried object protection body 700, and FIG. 10B is an enlarged sectional view of a part of the buried object protection body 700. The buried object protection body 700 of this embodiment is similar to the above-described buried object protection body 100, and corresponding portions are denoted by the same reference numerals and description thereof is omitted.

  The buried object protection body 700 according to the present embodiment is buried between the long buried object 102 buried in the ground 101 and the ground surface, and the buried object cover body 1, the printed layer 701, and the sensory agent 702. including. The embedded object cover body 1 covers the longitudinal embedded object 102 from the outside (upper side), and has a folded portion 11 that is folded in the longitudinal direction and partially folded. In the buried object cover body 1, the folding part 11 is heat-sealed.

  The printed layer 701 is printed on the embedded object cover body 1 so as to cover at least the folded portion 11. In the present embodiment, the printed layer 701 is provided on the surface on the ground surface side of the buried object cover body 1 by being printed over the entire length direction. In FIG. 10, the print layer 701 is configured by a character string “gas pipe”.

  In the present embodiment, a sensory agent 702 is contained in the print layer 701 as described above. The sensory agent 702 is configured in the same manner as the sensory agent 3 included in the above-described buried object protection body 100, and is a capsule body in which an odorous substance or a coloring substance is covered with an outer skin layer. The printing layer 701 containing such a sensory agent 702 can be formed by a conventionally known microencapsulated ink as described in, for example, JP-A-2002-19258.

  In the buried object protection body 700 of the present embodiment configured as described above, an external force when being excavated by the excavator or bucket of the excavating machine is applied to the buried object cover body 1, and at least the folding part 11 is deformed. The fusion at the overlapping portion is peeled off. Then, the printing layer 701 is deformed by a peeling force that peels off the fusion of the overlapping portion of the folding portion 11, and the outer skin layer of the sensory agent 702 is destroyed by the stress due to the deformation of the printing layer 701, and the odorous substance or the coloring substance Is released. As a result, it is possible to detect olfactory or visually that the long buried object 102 is buried in the ground 101 by the emission of odorous substances or colored substances, and the long buried object 102 is damaged by the excavating machine. Can be protected.

  FIG. 11 is a diagram showing a buried object protection body 800 according to the eighth embodiment of the present invention. FIG. 11A is a partial perspective view showing the buried object protection body 800, and FIG. 11B is an enlarged cross-sectional view of a part of the buried object protection body 800. The buried object protector 800 of the present embodiment is similar to the above-described buried object protector 100, and corresponding portions are denoted by the same reference numerals and description thereof is omitted.

  The buried object protector 800 according to the present embodiment is buried between the long buried object 102 buried in the ground 101 and the ground surface, and the buried object cover body 1, the bag body 801, and the sensory agent 802. including. The embedded object cover body 1 covers the longitudinal embedded object 102 from the outside (upper side), and has a folded portion 11 that is folded in the longitudinal direction and partially folded. In the buried object cover body 1, the folding part 11 is heat-sealed.

  The bag body 801 is provided on the embedded object cover body 1 so as to cover at least the folding portion 11. In the present embodiment, the bag body 801 is laminated on the entire surface in the longitudinal direction on the surface of the buried object cover body 1 on the ground surface side. As the material constituting the bag body 801, as with the gas barrier layer 22 described above, polyamides, polyvinyl alcohol, polyvinylidene chloride, ethylene-vinyl alcohol copolymer resin, polypropylene, polyethylene terephthalate, linear low density polyethylene And general gas barrier materials such as multilayer coextruded products, metal foils, metal oxides or metal vapor-deposited products. Examples of multilayer coextruded products include nylon / nylon / adhesive layer / polyethylene / polyethylene, nylon / ethylene-vinyl alcohol / nylon / adhesive layer / polyethylene, nylon / adhesive layer / nylon / adhesive layer / polyethylene, and the like. Examples of the metal oxide or metal vapor-deposited product include vapor-deposited products obtained by vapor-depositing silica, alumina, and aluminum on resin materials such as polyethylene terephthalate and polyvinyl alcohol. In the present embodiment, the bag body 801 is formed of a silica or alumina vapor-deposited product.

  In this embodiment, the inside of the bag body 801 as described above is filled with a sensory agent 802. This sensory agent 802 does not have a skin layer like the sensory agent 3 contained in the above-mentioned buried object protection body 100, and the odor substance or the colored substance itself is the sensory agent 802.

  In the buried object protection body 800 of the present embodiment configured as described above, an external force when being dug up by the excavator or bucket of the excavating machine is applied to the buried object cover body 1, and at least the folding portion 11 is deformed. The fusion at the overlapping portion is peeled off. Then, when the bag body 801 is broken by the peeling force that peels off the fusion of the overlapping portions of the folding portions 11, the odorous substance or coloring substance that is the sensory agent 802 itself is diffused. As a result, it is possible to detect olfactory or visually that the long buried object 102 is buried in the ground 101 by the emission of odorous substances or colored substances, and the long buried object 102 is damaged by the excavating machine. Can be protected.

  FIG. 12 is a view showing a buried object protection body 900 according to the ninth embodiment of the present invention. FIG. 12A is a partial perspective view showing the buried object protection body 900, and FIG. 12B is an enlarged cross-sectional view of a part of the buried object protection body 900. The buried object protector 900 according to this embodiment is similar to the above-described buried object protector 100, and corresponding portions are denoted by the same reference numerals and description thereof is omitted.

  The buried object protector 900 according to the present embodiment is buried between the long buried object 102 buried in the ground 101 and the ground surface, and the buried object cover body 1, the adhesive layer 901, and the sensory agent 902. including. The embedded object cover body 1 covers the longitudinal embedded object 102 from the outside (upper side), and has a folded portion 11 that is folded in the longitudinal direction and partially folded.

  In the above-described buried object cover body 1, the folding part 11 is fixed by heat-sealing. However, in the present embodiment, the folding part 11 is adhered and fixed by the adhesive layer 901. Such an adhesive layer 901 is formed of a general adhesive such as an acrylic adhesive, a rubber adhesive, a silicon adhesive, and a urethane adhesive. In the present embodiment, the adhesive layer 901 is formed of an acrylic adhesive.

  In the present embodiment, a sensory agent 902 is contained in the adhesive layer 901 as described above. This sensory agent 902 is configured in the same manner as the sensory agent 3 included in the above-described buried object protection body 100, and is a capsule body in which an odorous substance or a colored substance is covered with an outer skin layer.

  In the buried object protection body 900 of the present embodiment configured as described above, an external force when being dug up by the excavator or bucket of the excavating machine is applied to the buried object cover body 1 so that at least the folding part 11 is deformed. As a result, when the adhesive layer 901 is peeled off from the overlapping portion in the folded portion 11, the outer skin layer of the sensory agent 902 is destroyed, and the odorous substance or the colored substance is diffused. As a result, it is possible to detect olfactory or visually that the long buried object 102 is buried in the ground 101 by the emission of odorous substances or colored substances, and the long buried object 102 is damaged by the excavating machine. Can be protected.

DESCRIPTION OF SYMBOLS 1 Embedded object cover body 2,201,301,401,501 Sheet body 3,202,302,402,502,602,702,802,902 Sense sensor 11 Folding part 21,901 Adhesive layer 22 Gas barrier layer 100,200, 300,400,500,600,700,900 Buried object protection body 601 Sewing thread 701 Print layer 801 Bag body

Claims (10)

A buried object cover body that covers a longitudinal buried object buried in the ground from the outside, and has a buried part that is folded so as to partially overlap; and
A sheet body laminated on the buried object cover body so as to cover at least the folded portion;
A odorant contained in the sheet body, the odor substance being covered with an outer skin layer, and an external force is applied to the embedded object cover body, and at least the folding portion is deformed, whereby the outer skin layer is destroyed. And an odorant that emits the odorous substance when released. The sheet body is
An adhesive layer that includes the odorant and is adhered to the buried object cover body; and
The buried object protector according to claim 1, comprising a gas barrier layer having gas barrier properties and laminated on the adhesive layer. The sheet body is made of a material having flexibility and elasticity.
2. The buried object protection body according to claim 1, wherein the outer skin layer of the odorant is destroyed by applying stress due to elastic deformation of the sheet body. The sheet body is made of a flexible material having pores,
2. The buried object protector according to claim 1, wherein the odorant is contained in the sheet body in a state of being filled in the pores. The sheet body protrudes outward from the surface, and a protrusion having an internal space is formed,
The buried object protector according to claim 1, wherein the odorant is filled in the internal space. A buried object cover body that covers a longitudinal buried object buried in the ground from the outside, and has a buried part that is folded so as to partially overlap; and
A sewing thread for sewing the folding portion;
An odorant attached to the sewing thread and coated with an odor substance by an outer skin layer, and when the external thread is applied to the buried object cover body and the sewing thread is cut, the outer skin layer is destroyed. And an odorant from which the odorous substance is diffused. A buried object cover body that covers a longitudinal buried object buried in the ground from the outside, and has a buried part that is folded so as to partially overlap; and
A printed layer that is printed so as to cover at least the folded portion and is formed on the buried object cover body;
An odorant contained in the printed layer and having an odor substance coated with an outer skin layer, and an external force is applied to the buried object cover body, and at least the folded portion is deformed, whereby the outer skin layer is destroyed. And an odorant that emits the odorous substance when released. A buried object cover body that covers a longitudinal buried object buried in the ground from the outside, and has a buried part that is folded so as to partially overlap; and
A bag body provided on the buried object cover body so as to cover at least the folding portion;
A odorant filled in the bag body,
When an external force is applied to the buried object cover body and at least the folding portion is deformed, the odor emitted from the odorant is diffused when the bag body is destroyed. The buried object protector. A buried object cover body that covers a longitudinal buried object buried in the ground from the outside, and has a buried part that is folded so as to partially overlap; and
An adhesive layer provided by adhering to the overlapping portion in the folded portion;
An odorant contained in the adhesive layer and coated with an odor substance by an outer skin layer, and an external force is applied to the embedded object cover body, and at least the folding portion is deformed, whereby the outer skin layer is destroyed. And an odorant that emits the odorous substance when released. A buried object cover body that covers a longitudinal buried object buried in the ground from the outside, and has a buried part that is folded so as to partially overlap; and
A sheet body laminated on the buried object cover body so as to cover at least the folded portion;
A coloring agent that is contained in the sheet body and is coated with a colored substance covered with an outer skin layer, and an external force is applied to the embedded object cover body, and at least the folded portion is deformed, whereby the outer skin layer is destroyed. And a coloring agent from which the coloring substance is diffused.

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