JP2011104544A - Water barrier structure of waste disposal site and execution method thereof - Google Patents

Water barrier structure of waste disposal site and execution method thereof Download PDF

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JP2011104544A
JP2011104544A JP2009263746A JP2009263746A JP2011104544A JP 2011104544 A JP2011104544 A JP 2011104544A JP 2009263746 A JP2009263746 A JP 2009263746A JP 2009263746 A JP2009263746 A JP 2009263746A JP 2011104544 A JP2011104544 A JP 2011104544A
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water shielding
waste disposal
disposal site
water
fixed
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JP5171792B2 (en
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Hiroshi Sakurai
宏 桜井
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KFC Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7318—Permeability to gases or liquids
    • B29C66/73185—Permeability to gases or liquids non-permeable
    • B29C66/73187—Permeability to gases or liquids non-permeable to liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/364—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a woven or non-woven fabric or being a mesh
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/861—Hand-held tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water barrier structure of a waste disposal site, the long water barrier sheet of which can be laid without forming a stepped part on a long slope, the execution cost of which can be reduced, the water barrier sheet of which can be fixed at optional positions and can surely be fixed along the topographical features of the waste disposal site. <P>SOLUTION: The water barrier structure of the waste disposal site includes: a plurality of fixtures 10 each of which has a heat generator 12 for generating heat by electromagnetic induction and a disk body 11 being a melt-sticking part on the front surface side thereof and which are arranged at regular intervals on the slope of the waste disposal site; and the water barrier sheet 20 to be laid on the plurality of fixtures 10. The disk bodies 11 of the plurality of fixtures 10 are melt-stuck to the water barrier sheet 20 by heating by the heat generators 12. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、廃棄物処分場の斜面に遮水シートを敷設する廃棄物処分場の遮水構造及びその施工方法に関する。   The present invention relates to a water shielding structure for a waste disposal site in which a water shielding sheet is laid on the slope of the waste disposal site, and a construction method therefor.

一般的に廃棄物処分場に於いては、廃棄された廃棄物から有害物質が流出して周囲の土壌や地下水が汚染されることを防止するために、遮水シートが敷設される。遮水シートは、廃棄物処分場の斜面の天端部に係止溝を形成し、この係止溝内に遮水シートの一部を埋め込んで固定し、巻いてある遮水シートを上から下に広げるようにして敷設するのが通常である。更に、廃棄物処分場の斜面が長大な場合には、所定の高さ毎に段部を掘削して形成し、各段部に係止溝を掘って形成し、各段部の下側に設けられる遮水シートの上端部を段部の係止溝に埋め込んで固定し、上側の遮水シートと下側の遮水シートを瓦状に重ね合わせて接着することにより、遮水シートを敷設する。   In general, in a waste disposal site, a water shielding sheet is laid in order to prevent harmful substances from flowing out of the discarded waste and contaminating surrounding soil and groundwater. The impermeable sheet forms a locking groove at the top end of the slope of the waste disposal site, and a part of the impermeable sheet is embedded and fixed in the locking groove. It is normal to lay it down. Furthermore, when the slope of the waste disposal site is long, it is formed by excavating stepped portions at a predetermined height, and by forming a locking groove in each stepped portion, and below each stepped portion. The upper end of the water-impervious sheet to be installed is embedded and fixed in the locking groove of the stepped part, and the upper and lower water-impervious sheets are stacked and bonded in a tile shape to lay the water-impervious sheet To do.

上記斜面が長大な場合の遮水シートの敷設では、段部や係止溝の掘削、遮水シートの敷設の作業に手間がかかり、更に、遮水シートの接着箇所が増えることによって、施工不良による漏水の可能性も高くなるという問題があるが、斯様な問題をある程度解消可能な技術も提案されている（特許文献１参照）。特許文献１には、遮水シートを構成する遮水層に積層した支持層に所定の高さ毎に固定片を設け、この固定片を固定金具で斜面に固定することにより、遮水シート全体を斜面に滑り落ちないように固定することが記載されており、この技術を用いることで、係止溝の掘削の手間を無くし、遮水シートの敷設作業の手間も軽減することができる。   In the installation of the water-impervious sheet when the slope is long, it takes time to dig the stepped portion and the locking groove and lay the water-impervious sheet. Although there is a problem that the possibility of water leakage due to this increases, a technique that can solve such a problem to some extent has also been proposed (see Patent Document 1). In Patent Document 1, a fixed piece is provided for each predetermined height on a support layer laminated on a water-impervious layer constituting the water-impervious sheet, and the fixed piece is fixed to a slope with a fixing bracket, whereby the entire impermeable sheet Is fixed on the slope so as not to slide down, and by using this technique, it is possible to eliminate the trouble of excavating the locking groove and reduce the trouble of laying the water shielding sheet.

特開２００４−２０２３７９号公報JP 2004-202379 A

ところで、上記段部の形成は掘削コストが非常に大きくなるため、長大な斜面における遮水シートの敷設では、段部を形成せずに長大な遮水シートを敷設することが好ましい。しかしながら、特許文献１の遮水シートは、積層シートであると共に、予め工場加工によって支持層に固定片が取付けてられているものであるため、この遮水シート全体の重量が非常に重くなる。このため、遮水シートの幅や長さをあまり大きくすると、その重量によって施工時の取り扱いが難しくなると共に、固定部にかかる自重による引張荷重が非常に大きくなってしまい、長大な遮水シートにするには不向きである。   By the way, since the formation of the stepped portion greatly increases the excavation cost, it is preferable to lay a long impermeable sheet without forming the stepped portion in laying the water shielding sheet on a long slope. However, since the water-impervious sheet of Patent Document 1 is a laminated sheet and a fixing piece is previously attached to the support layer by factory processing, the weight of the entire water-impervious sheet becomes very heavy. For this reason, if the width and length of the water-impervious sheet are too large, handling during construction becomes difficult due to its weight, and the tensile load due to its own weight on the fixed part becomes very large, resulting in a long impermeable sheet. It is unsuitable to do.

また、特許文献１の遮水シートの重量を可能な限り軽量にするには、固定片の数を減らすことが考えられる。しかしながら、この遮水シートの固定位置は固定片の位置に限定されていることから、あまり固定片の数を減らすと、遮水シートを地形に沿って適切に固定できない可能性も生ずる。そのため、長大な斜面に段部を形成せずに長大な遮水シートを敷設できると共に、遮水シートの任意の位置で固定することができる構造が求められている。   Moreover, in order to make the weight of the water shielding sheet of Patent Document 1 as light as possible, it is conceivable to reduce the number of fixing pieces. However, since the fixing position of the water shielding sheet is limited to the position of the fixing piece, if the number of fixing pieces is reduced too much, there is a possibility that the water shielding sheet cannot be appropriately fixed along the terrain. Therefore, there is a demand for a structure that can lay a long water-proof sheet without forming a step portion on a long slope and can be fixed at an arbitrary position of the water-blocking sheet.

本発明は上記課題に鑑み提案するものであって、長大な斜面に段部を形成せずに長大な遮水シートを敷設可能で、施工コストを低減することができると共に、遮水シートの任意の位置で固定可能で、廃棄物処分場の地形に沿って遮水シートを確実に固定することができる廃棄物処分場の遮水構造及びその施工方法を提供することを目的とする。   The present invention is proposed in view of the above problems, and it is possible to lay a long impermeable sheet without forming a step portion on a long inclined surface, and it is possible to reduce the construction cost. It aims at providing the water-impervious structure of the waste disposal site and the construction method thereof, which can be fixed at the position of, and can securely fix the water-impervious sheet along the landform of the waste disposal site.

本発明による廃棄物処分場の遮水構造は、発熱体と溶着部を表面側に有し、廃棄物処分場の斜面に間隔を開けて複数設けられる固定体と、前記複数の固定体上に敷設される遮水シートとを備え、前記複数の固定体の前記溶着部と前記遮水シートとを前記発熱体による加熱で直接的若しくは間接的に溶着することを特徴とする。
前記構成では、固定片や固定片が設けられる積層支持層等のない等の軽量で取り扱い容易な遮水シートを用いることができるので、固定体と遮水シートの固定箇所における引張荷重を小さくすることが可能であり、長大な遮水シートを敷設することができる。更に、長大な斜面に段部を形成せずに長大な遮水シートを敷設できることから、施工コストを低減することができる。また、敷設面の広さ、遮水シートの幅や長さに関わらず、遮水シートの任意の位置で固定可能であり、廃棄物処分場の地形に沿って遮水シートを確実に固定することができる。また、遮水シートに穴を開けたり傷を付けたりせずに固定することが可能である。 The water-impervious structure of the waste disposal site according to the present invention has a heating element and a welding portion on the surface side, a plurality of fixed bodies provided at intervals on the slope of the waste disposal site, and the plurality of fixed bodies A water shielding sheet to be laid, wherein the welded portions of the plurality of fixed bodies and the water shielding sheet are welded directly or indirectly by heating with the heating element.
In the above-described configuration, a lightweight and easy-to-handle water-proof sheet such as a fixed piece or a laminated support layer on which the fixed piece is provided can be used, so that a tensile load at a fixed portion between the fixed body and the water-proof sheet is reduced. It is possible to lay a long impermeable sheet. Furthermore, since a long water-proof sheet can be laid without forming a step portion on a long slope, the construction cost can be reduced. In addition, it can be fixed at any position on the water shielding sheet regardless of the size of the laying surface and the width and length of the water shielding sheet, and the water shielding sheet is securely fixed along the landform of the waste disposal site. be able to. Further, it is possible to fix the water shielding sheet without making a hole or scratching it.

本発明による廃棄物処分場の遮水構造は、前記固定体の前記表面側に、熱可塑性樹脂で被覆した前記発熱体を設けることを特徴とする。
前記構成では、熱可塑性樹脂が溶けて接着剤として機能するため、固定体の溶着部と遮水シートが異素材など直接溶着しにくい場合でも、熱可塑性樹脂を介した間接的な溶着で確実に固着することができる。また、溶けた熱可塑性樹脂は不織布等にも滲み込ませることができるので、例えば不織布等の保護マットを遮水シートの下側に積層する場合に、保護マットを合わせて固定体に固定することが可能である。また、金属製の発熱体は露出すると腐食の危険に曝されるが、熱可塑性樹脂で被覆することにより、錆や腐食の危険性を長期に亘って除くことができる。 The water shielding structure of the waste disposal site according to the present invention is characterized in that the heating element coated with a thermoplastic resin is provided on the surface side of the stationary body.
In the above configuration, since the thermoplastic resin melts and functions as an adhesive, even if the welded part of the fixed body and the water shielding sheet are difficult to be welded directly such as from different materials, it is ensured by indirect welding via the thermoplastic resin. It can be fixed. In addition, since the melted thermoplastic resin can be infiltrated into the non-woven fabric etc., for example, when a protective mat such as non-woven fabric is laminated on the lower side of the water shielding sheet, the protective mat should be fixed to the fixed body together. Is possible. Further, when the metal heating element is exposed, it is exposed to the risk of corrosion, but by covering with a thermoplastic resin, the risk of rust and corrosion can be eliminated over a long period of time.

本発明による廃棄物処分場の遮水構造の施工方法は、電磁誘導により発熱する発熱体と溶着部を表面側に有する固定体を廃棄物処分場の斜面に間隔を開けて複数設ける工程と、前記複数の固定体上に遮水シートを敷設する工程と、前記遮水シートと前記固定体とが重なり合う部分における前記遮水シートの上に誘導加熱装置を配置し、前記誘導加熱装置で前記発熱体を発熱させて前記遮水シートと前記固定体の前記溶着部とを直接的若しくは間接的に溶着する工程とを備えることを特徴とする。
前記構成では、固定片や固定片が設けられる積層支持層等のない等の軽量で取り扱い容易な遮水シートを用いることができるので、固定体と遮水シートの固定箇所における引張荷重を小さくすることが可能であり、長大な遮水シートを敷設することができる。更に、長大な斜面に段部を形成せずに長大な遮水シートを敷設できることから、施工コストを低減することができる。また、敷設面の広さ、遮水シートの幅や長さに関わらず、遮水シートの任意の位置で固定可能であり、廃棄物処分場の地形に沿って遮水シートを確実に固定することができる。また、遮水シートに穴を開けたり傷を付けたりせずに固定することが可能である。 The construction method of the water-impervious structure of the waste disposal site according to the present invention includes a step of providing a plurality of fixing elements having a heating element and a welded portion on the surface side that generate heat by electromagnetic induction on the slope of the waste disposal site, and A step of laying a water-impervious sheet on the plurality of fixed bodies, an induction heating device is disposed on the water-impervious sheet in a portion where the water-impervious sheet and the fixed body overlap, and the heat generation by the induction heating device And a step of directly or indirectly welding the water shielding sheet and the welded portion of the fixed body by heating the body.
In the above-described configuration, a lightweight and easy-to-handle water-proof sheet such as a fixed piece or a laminated support layer on which the fixed piece is provided can be used, so that a tensile load at a fixed portion between the fixed body and the water-proof sheet is reduced. It is possible to lay a long impermeable sheet. Furthermore, since a long water-proof sheet can be laid without forming a step portion on a long slope, the construction cost can be reduced. In addition, it can be fixed at any position on the water shielding sheet regardless of the size of the laying surface and the width and length of the water shielding sheet, and the water shielding sheet is securely fixed along the landform of the waste disposal site. be able to. Further, it is possible to fix the water shielding sheet without making a hole or scratching it.

本発明による廃棄物処分場の遮水構造の施工方法は、前記誘導加熱装置に温度センサーを設けると共に、所定の設定温度を記憶し、前記誘導加熱装置で前記発熱体を発熱させる際に、前記温度センサーで前記発熱部分に対応する前記遮水シートの温度を計測し、前記誘導加熱装置は、前記計測温度を取得し、前記計測温度が前記所定設定温度に到達した時に出力部から完了信号を出力することを特徴とする。
前記構成では、確実な固定が必要とされる廃棄物処分場の遮水シートの固定について、溶着作業時に固定体と遮水シートを確実に固着することができると共に、遮水シートの溶融が進みすぎて弱体化した箇所が生ずることを防ぐことができる。また、溶着作業時に作業者の作業経験に関わらず一定した溶着品質を確保することが可能となる。 According to the construction method of the water shielding structure of the waste disposal site according to the present invention, the induction heating device is provided with a temperature sensor, stores a predetermined set temperature, and the induction heating device generates heat when the heating element is heated. The temperature sensor measures the temperature of the water shielding sheet corresponding to the heat generating portion, the induction heating device acquires the measured temperature, and outputs a completion signal from the output unit when the measured temperature reaches the predetermined set temperature. It is characterized by outputting.
In the above-described configuration, the fixing body and the water shielding sheet can be securely fixed during the welding operation for fixing the water shielding sheet of the waste disposal site that needs to be securely fixed, and the melting of the water shielding sheet proceeds. It is possible to prevent the occurrence of weakened parts. In addition, it is possible to ensure a constant welding quality regardless of the operator's work experience during welding work.

本発明による廃棄物処分場の遮水構造、或いはその施工方法は、軽量で取り扱い容易な遮水シートを用いることができるので、固定体と遮水シートの固定箇所における引張荷重を小さくすることが可能であり、長大な遮水シートを敷設することができる。更に、長大な斜面に段部を形成せずに長大な遮水シートを敷設できることから、施工コストを低減することができる。また、遮水シートの任意の位置で固定可能であり、廃棄物処分場の地形に沿って遮水シートを確実に固定することができる。また、遮水シートに穴を開けたり傷を付けたりせずに固定することが可能である。   Since the water shielding structure of the waste disposal site according to the present invention or the construction method thereof can use a lightweight and easy-to-handle water shielding sheet, it is possible to reduce the tensile load at the fixing portion between the fixing body and the water shielding sheet. It is possible and a long impermeable sheet can be laid. Furthermore, since a long water-proof sheet can be laid without forming a step portion on a long slope, the construction cost can be reduced. Moreover, it can be fixed at an arbitrary position of the water shielding sheet, and the water shielding sheet can be reliably fixed along the landform of the waste disposal site. Further, it is possible to fix the water shielding sheet without making a hole or scratching it.

（ａ）は本発明による第１実施形態の廃棄物処分場の遮水構造を示す縦断面図、（ｂ）は同図（ａ）のＡ矢視の正面図。(A) is a longitudinal cross-sectional view which shows the water-blocking structure of the waste disposal site of 1st Embodiment by this invention, (b) is a front view of A arrow of the figure (a). 第１実施形態の廃棄物処分場の遮水構造の施工工程において遮水シートの敷設を説明する縦断説明図。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal explanatory view for explaining laying of a water shielding sheet in a construction process of a water shielding structure of a waste disposal site according to a first embodiment. 第１実施形態の廃棄物処分場の遮水構造の施工工程において固定体と遮水シートとの溶着を説明する縦断説明図。Longitudinal explanatory drawing explaining welding of a fixed body and a water shielding sheet in the construction process of the water shielding structure of the waste disposal site of the first embodiment. （ａ）は第１例の固定体の縦断側面図、（ｂ）はその平面図。(A) is the vertical side view of the fixed body of a 1st example, (b) is the top view. （ａ）は第２例の固定体の縦断側面図、（ｂ）はその平面図。(A) is the vertical side view of the fixed body of a 2nd example, (b) is the top view. （ａ）は第２例の固定体による溶着において溶着前の遮水シート、発熱体、固定体の溶着部を示す部分拡大断面図、（ｂ）はその溶着後の状態を示す部分拡大断面図。(A) is a partially enlarged cross-sectional view showing a welded portion of a water shielding sheet, a heating element, and a fixed body before welding in welding by the fixed body of the second example, and (b) is a partially enlarged cross-sectional view showing a state after the welding. . 第２実施形態の廃棄物処分場の遮水構造の施工工程において固定体と遮水シートとの溶着を説明する縦断説明図。The longitudinal cross-sectional explanatory drawing explaining welding with a fixed body and a water-proof sheet | seat in the construction process of the water-proof structure of the waste disposal site of 2nd Embodiment. 第２実施形態の廃棄物処分場の遮水構造の施工工程において固定体と遮水シートとの溶着を説明する縦断説明図。The longitudinal cross-sectional explanatory drawing explaining welding with a fixed body and a water-proof sheet | seat in the construction process of the water-proof structure of the waste disposal site of 2nd Embodiment.

〔第１実施形態の廃棄物処分場の遮水構造及びその施工方法〕
本発明による第１実施形態の廃棄物処分場の遮水構造及びその施工方法について説明する。図１は第１実施形態の廃棄物処分場の遮水構造を示す図、図２、図３はその遮水構造を施工する際の遮水シートの敷設、
固定体と遮水シートとの溶着をそれぞれ説明する図、図４は第１例の固定体の図である。 [Water Impermeable Structure of Waste Disposal Site of First Embodiment and its Construction Method]
A water shielding structure of a waste disposal site according to a first embodiment of the present invention and a construction method thereof will be described. FIG. 1 is a view showing a water shielding structure of the waste disposal site of the first embodiment, and FIGS. 2 and 3 are laying a water shielding sheet when constructing the water shielding structure,
FIGS. 4A and 4B are diagrams for explaining welding of the fixing body and the water shielding sheet, respectively, and FIG. 4 is a diagram of the fixing body of the first example.

第１実施形態の廃棄物処分場の遮水構造は、図１に示すように、上面１０１、斜面１０２、底面１０３の地面を有する廃棄物処分場の凹領域に設置されるものであり、廃棄物処分場の斜面１０２に略一定のピッチなど間隔を開けて複数配設される固定体１０と、配設された複数の固定体１０上に敷設される遮水シート２０とを備える。   As shown in FIG. 1, the water-impervious structure of the waste disposal site according to the first embodiment is installed in a concave area of the waste disposal site having a ground surface with an upper surface 101, an inclined surface 102, and a bottom surface 103. There are provided a plurality of fixed bodies 10 disposed on the slope 102 of the material disposal site with a substantially constant pitch, and a water shielding sheet 20 laid on the plurality of fixed bodies 10 disposed.

固定体１０は、図４に示すように、円盤状のディスク本体１１と、ディスク本体１１の円周状の表面１１１に沿って設けられる発熱体１２と、ディスク本体１１の中央に表面１１１側から凹んで設けられる凹部１１２に取付けられる固定用アンカー１３とから構成される。ディスク本体１１は、本実施形態では表面側の溶着部に対応するものとしてディスク本体１１自体が溶着材で形成され、例えばポリエチレン等で形成されている。発熱体１２は、電磁誘導により発熱するアルミメッシュ等の金属製のメッシュである。   As shown in FIG. 4, the fixed body 10 includes a disk-shaped disk main body 11, a heating element 12 provided along the circumferential surface 111 of the disk main body 11, and the center of the disk main body 11 from the surface 111 side. It is comprised from the anchor 13 for fixing attached to the recessed part 112 provided in a dent. In the present embodiment, the disc body 11 is formed of a welding material as corresponding to the welding portion on the surface side, and is made of, for example, polyethylene. The heating element 12 is a metal mesh such as an aluminum mesh that generates heat by electromagnetic induction.

固定用アンカー１３は、図示省略する穴を有する基端の頭部１３１ｍ、先端の拡開部１３１ｎを有するスリーブ１３１と、前記穴からスリーブ１３１内に挿入されている打込ピン１３２とから構成される。固定用アンカー１３は、図１〜図４に示すように、凹部１１２に頭部１３１ｍを係合するようにして凹部１１２の穴に挿入して設けられ、ディスク本体１１の下面１１３を斜面１０２側にしてディスク本体１１を配置すると共に、スリーブ１３１を斜面１０２に埋め込み、打込ピン１３２を打ち込んで拡開部１３１ｎを拡開することにより、ディスク本体１１を斜面１０２に固定するようになっている。   The anchor 13 for fixing is composed of a base 131m having a hole (not shown), a sleeve 131 having a widened portion 131n at the tip, and a driving pin 132 inserted into the sleeve 131 through the hole. The As shown in FIGS. 1 to 4, the fixing anchor 13 is provided by being inserted into the hole of the concave portion 112 so that the head portion 131 m is engaged with the concave portion 112, and the lower surface 113 of the disc body 11 is disposed on the slope 102 side. The disk main body 11 is arranged, the sleeve 131 is embedded in the inclined surface 102, and the driving pin 132 is driven to expand the expanded portion 131n, thereby fixing the disk main body 11 to the inclined surface 102. .

遮水シート２０は、図１に示すように、斜面１０２の天端部に対応する位置の上面１０１に係止溝１０４を形成し、係止溝１０４内に遮水シート２０の上端部を埋め込んで固定し、遮水シート２０を上から下に広げることにより、敷設される。遮水シート２０には、例えば斜面１０２から底面１０３に亘る長大な遮水シート２０が用いられ、斜面１０２に固定設置されている複数の固定体１０上に載置されるようにして敷設される。固定体１０上に載置された遮水シート２０は、後述するように、溶着部に相当する各ディスク本体１１の表面１１１と、電磁誘導加熱により発熱体１２を発熱させて直接溶着される。   As shown in FIG. 1, the water shielding sheet 20 has a locking groove 104 formed on the upper surface 101 at a position corresponding to the top end of the slope 102, and the upper end of the water shielding sheet 20 is embedded in the locking groove 104. And laying by spreading the water shielding sheet 20 from top to bottom. For example, a long impermeable sheet 20 extending from the inclined surface 102 to the bottom surface 103 is used as the impermeable sheet 20 and is laid so as to be placed on a plurality of fixed bodies 10 fixedly installed on the inclined surface 102. . As will be described later, the water-impervious sheet 20 placed on the fixed body 10 is directly welded to the surface 111 of each disk main body 11 corresponding to the welded portion by heating the heating element 12 by electromagnetic induction heating.

更に、第１実施形態の遮水構造においては、斜面１０２上に斜面１０２に沿って不織布等からなる保護マット３０が設けられている。保護マット３０上にはディスク本体１１が配置され、固定用アンカー１３のスリーブ１３１と打込ピン１３２を保護マット３０に貫通させ、上記の如く固定用アンカー１３を斜面１０２に固定することにより、ディスク本体１１と斜面１０２に挟持されるようにして保護マット３０は敷設される。   Furthermore, in the water shielding structure of the first embodiment, a protective mat 30 made of a nonwoven fabric or the like is provided on the slope 102 along the slope 102. The disk main body 11 is disposed on the protective mat 30, the sleeve 131 and the driving pin 132 of the fixing anchor 13 are passed through the protective mat 30, and the fixing anchor 13 is fixed to the inclined surface 102 as described above, whereby the disk The protective mat 30 is laid so as to be sandwiched between the main body 11 and the slope 102.

次に、第１実施形態の遮水構造の施工方法について説明する。先ず、図１〜図３に示すように、廃棄物処分場の斜面１０２に保護マット３０を敷設する。保護マット３０は、その上端部を係止溝１０４内に埋め込んで固定され、巻いてある保護マット３０を上から下に広げることにより、敷設される。次いで、固定体１０を斜面１０２に略一定の任意のピッチで縦横に設けるなど間隔を開けて配置することにより、複数の固定体１０を斜面１０２に間隔を開けて配置する。   Next, the construction method of the water shielding structure of the first embodiment will be described. First, as shown in FIGS. 1 to 3, a protective mat 30 is laid on the slope 102 of the waste disposal site. The protective mat 30 is fixed by embedding the upper end portion thereof in the locking groove 104 and spreading the wound protective mat 30 downward from above. Next, a plurality of fixed bodies 10 are arranged on the slope 102 at intervals, for example, by providing the fixed bodies 10 on the slope 102 at a substantially constant pitch in a vertical and horizontal manner.

その後、図２に示すように、配置した複数の固定体１０上に遮水シート２０を敷設する。遮水シート２０は、係止溝１０４内に上端部を埋め込んで固定し、巻いてある遮水シート２０を上から下に広げることにより、敷設される。次いで、図３に示すように、遮水シート２０と固定体１０とが重なり合う部分における遮水シート２０の上に誘導加熱装置５０を配置し、誘導加熱装置５０で発熱体１２を発熱させ、遮水シート２０と固定体１０のディスク本体１１の表面１１１とを直接的に溶着する。   Thereafter, as shown in FIG. 2, a water shielding sheet 20 is laid on the plurality of fixed bodies 10 arranged. The impermeable sheet 20 is laid by embedding and fixing the upper end portion in the locking groove 104 and spreading the rolled impermeable sheet 20 from the top to the bottom. Next, as shown in FIG. 3, the induction heating device 50 is disposed on the water shielding sheet 20 at the portion where the water shielding sheet 20 and the fixed body 10 overlap, and the heating element 12 is caused to generate heat by the induction heating device 50. The water sheet 20 and the surface 111 of the disk body 11 of the fixed body 10 are directly welded.

この誘導加熱装置５０は、コイルターミナル５１を介して電源部５２に接続されており、図示省略するスイッチのＯＮ動作により誘導加熱装置５０内の誘導加熱コイルに電流が流れるようになっている。また、誘導加熱装置５０の押当面に近接して温度センサー５３が設けられていると共に、誘導加熱装置５０には、設定記憶されている制御プログラムに従って制御する制御部と、所定の設定温度等を記憶する記憶部と、音或いは光等の完了信号を出力する出力部等が設けられている。そして、誘導加熱装置５０で発熱体１２を発熱させた際に、温度センサー５３で発熱部分に対応する遮水シート２０の温度を計測し、誘導加熱装置５０は、この計測温度を取得し、計測温度を前記記憶部の所定設定温度と対比して所定設定温度に到達したことを認識し、これに応じて音或いは光等の完了信号を出力部から出力するようになっており、作業者が溶着完了を容易に認識可能になっている。   The induction heating device 50 is connected to a power source unit 52 via a coil terminal 51, and a current flows through an induction heating coil in the induction heating device 50 by an ON operation of a switch (not shown). In addition, a temperature sensor 53 is provided in the vicinity of the pressing surface of the induction heating device 50. The induction heating device 50 includes a control unit that controls according to a control program that is set and stored, a predetermined set temperature, and the like. A storage unit for storing, an output unit for outputting a completion signal such as sound or light, and the like are provided. Then, when the heating element 12 is heated by the induction heating device 50, the temperature sensor 53 measures the temperature of the water shielding sheet 20 corresponding to the heat generation portion, and the induction heating device 50 acquires the measured temperature and measures it. The temperature is compared with the predetermined set temperature of the storage unit to recognize that the predetermined set temperature has been reached, and in response to this, a completion signal such as sound or light is output from the output unit. The completion of welding can be easily recognized.

第１実施形態では、遮水シート２０を付属物のない即ち単体シートとして軽量で取扱いが容易な状態で用いることができ、固定体１０と遮水シート２０の固定箇所における引張荷重を小さくすることが可能であり、長大な遮水シート２０を敷設することができる。更に、長大な斜面１０２に段部を形成せずに長大な遮水シート２０を敷設できることから、施工コストを低減することができる。また、遮水シート２０の任意の位置で固定可能であり、廃棄物処分場の地形に多少の凹凸があっても地形に沿って確実に遮水シート２０を敷設し、固定することができる。また、遮水シート２０に穴を開けたり傷を付けたりせずに固定することが可能である。   In the first embodiment, the water-impervious sheet 20 can be used in a state of being lightweight and easy to handle as a single sheet without attachments, and reducing the tensile load at the fixed portion of the fixed body 10 and the water-impervious sheet 20. The long water-proof sheet 20 can be laid. Furthermore, since the long impermeable sheet 20 can be laid without forming a step portion on the long slope 102, the construction cost can be reduced. Moreover, it can fix in the arbitrary positions of the water-impervious sheet 20, and even if the landform of a waste disposal site has some unevenness | corrugation, the water-impervious sheet 20 can be reliably laid and fixed along the landform. Further, it is possible to fix the water shielding sheet 20 without making a hole or scratching it.

また、温度センサー５３や完了信号出力の構成を有する誘導加熱装置５０で溶着することにより、確実な固定が必要とされる廃棄物処分場の遮水シート２０の固定について、溶着作業時に固定体１０と遮水シート２０を確実に固着することができると共に、遮水シート２０の溶融が進みすぎて弱体化した箇所が生ずることを防ぐことができる。更に、溶着作業時に作業者の作業経験に関わらず一定した溶着品質を確保することが可能となる。   Further, by welding with the temperature sensor 53 or the induction heating device 50 having a configuration of a completion signal output, the fixing body 10 is fixed during the welding operation for fixing the water shielding sheet 20 in the waste disposal site that needs to be surely fixed. In addition, the water shielding sheet 20 can be securely fixed, and it is possible to prevent a weakened portion from being caused by excessive melting of the water shielding sheet 20. Furthermore, it is possible to ensure a constant welding quality regardless of the operator's work experience during the welding operation.

尚、図４の固定体１０に代えて、図５及び図６に示す例の固定体１０ａを用いるとより好適である。図５の固定体１０ａは、ディスク本体１１ａ、固定用アンカー１３ａは図４の固定体１０のディスク本体１１、固定用アンカー１３と同一構成であるが、固定体１０ａの表面側に設けられ、金属製メッシュで構成される発熱体１２ａがポリエチレン等の熱可塑性樹脂１４ａで被覆されている。固定体１０ａにより、溶着部であるディスク本体１１ａと遮水シート２０とを溶着する際には、図６に示すように、電磁誘導加熱によって発熱体１２ａの周囲の熱可塑性樹脂１４ａが溶融し、熱可塑性樹脂１４ａが接着剤となってディスク本体１１ａと遮水シート２０とが間接的に溶着される。   It is more preferable to use the fixed body 10a shown in FIGS. 5 and 6 instead of the fixed body 10 shown in FIG. The fixed body 10a in FIG. 5 has the same structure as the disk main body 11 and the fixing anchor 13 of the fixed body 10 in FIG. 4 except for the disk main body 11a and the fixing anchor 13a. A heating element 12a made of a mesh is covered with a thermoplastic resin 14a such as polyethylene. When the disk main body 11a as the welded portion and the water shielding sheet 20 are welded by the fixed body 10a, the thermoplastic resin 14a around the heating element 12a is melted by electromagnetic induction heating, as shown in FIG. The thermoplastic resin 14a serves as an adhesive, and the disc body 11a and the water shielding sheet 20 are indirectly welded.

固定体１０ａを用いる場合には、電磁誘導によって熱可塑性樹脂１４ａが溶けて接着剤として機能するため、ディスク本体１１ａと遮水シート２０が異素材など直接溶着しにくい場合でも、熱可塑性樹脂１４ａを介した間接的な溶着で確実に固着することができる。また、金属製の発熱体１２ａは露出すると腐食の危険に曝されるが、熱可塑性樹脂１４ａで被覆することにより、錆や腐食の危険性を長期に亘って除くことができる。   When the fixed body 10a is used, the thermoplastic resin 14a is melted by electromagnetic induction and functions as an adhesive. Therefore, even when the disk main body 11a and the water shielding sheet 20 are difficult to be directly welded from different materials, the thermoplastic resin 14a is used. It is possible to securely fix by indirect welding via. Further, when the metal heating element 12a is exposed, it is exposed to the risk of corrosion, but by covering with the thermoplastic resin 14a, the risk of rust and corrosion can be eliminated over a long period of time.

〔第２実施形態の廃棄物処分場の遮水構造及びその施工方法〕
次に、本発明による第２実施形態の廃棄物処分場の遮水構造及びその施工方法について説明する。図７は第２実施形態の廃棄物処分場の遮水構造の施工工程において固定体と遮水シートとの溶着を説明する図である。 [Water Impermeable Structure and Construction Method for Waste Disposal Site in Second Embodiment]
Next, the water shielding structure of the waste disposal site according to the second embodiment of the present invention and the construction method thereof will be described. FIG. 7 is a view for explaining welding of the fixed body and the water shielding sheet in the construction process of the water shielding structure of the waste disposal site according to the second embodiment.

第２実施形態の廃棄物処分場の遮水構造は、図７に示すように、斜面１０２に保護マット３０を敷設せずに、斜面１０２に固定体１０を直接敷設するものであり、その他の構成は第１実施形態と同一である。この遮水構造を施工する際には、斜面１０２に保護マット３０を敷設せずに、複数の固定体１０を斜面１０２に間隔を開けて配置し、その後、第１実施形態と同様に、複数の固定体１０上への遮水シート２０の敷設、遮水シート２０と固定体１０のディスク本体１１の表面１１１との溶着を行う。尚、固定体１０に代えて、図５の固定体１０ａを用いてもよい。第２実施形態では、保護マット３０を設けないことに対応する効果の他は第１実施形態と同様の効果が得られる。   As shown in FIG. 7, the water-impervious structure of the waste disposal site according to the second embodiment is such that the fixed body 10 is directly laid on the slope 102 without laying the protective mat 30 on the slope 102. The configuration is the same as in the first embodiment. When constructing this water-impervious structure, a plurality of fixed bodies 10 are arranged at intervals on the slope 102 without laying the protective mat 30 on the slope 102, and then, as in the first embodiment, a plurality of The water shielding sheet 20 is laid on the fixed body 10 and the water shielding sheet 20 and the surface 111 of the disk body 11 of the fixed body 10 are welded. Instead of the fixed body 10, the fixed body 10a shown in FIG. In the second embodiment, the same effects as in the first embodiment can be obtained except for the effect corresponding to the fact that the protective mat 30 is not provided.

〔第３実施形態の廃棄物処分場の遮水構造及びその施工方法〕
次に、本発明による第３実施形態の廃棄物処分場の遮水構造及びその施工方法について説明する。図８は第３実施形態の廃棄物処分場の遮水構造の施工工程において固定体と遮水シートとの溶着を説明する図である。 [Water Impermeable Structure of Waste Disposal Site of Third Embodiment and its Construction Method]
Next, the water shielding structure of the waste disposal site according to the third embodiment of the present invention and the construction method thereof will be described. FIG. 8 is a view for explaining welding of the fixed body and the water shielding sheet in the construction process of the water shielding structure of the waste disposal site according to the third embodiment.

第３実施形態の廃棄物処分場の遮水構造は、図８に示すように、斜面１０２に保護マット３０を直接敷設せずに、斜面１０２に複数の固定体１０を直接敷設し、更に、その固定体１０の上に保護マット３０を敷設し、その上に遮水シート２０を敷設し、保護マット３０を介して遮水シート２０と固定体１０のディスク本体１１の表面１１１とを溶着するものである。この遮水構造を施工する際には、斜面１０２に保護マット３０を敷設せずに、複数の固定体１０を斜面１０２に間隔を開けて配置し、次いで、保護マット３０を、その上端部を係止溝１０４内に埋め込んで固定し、巻いてある保護マット３０を上から下に広げることにより、固定体１０上に敷設する。更に、第１実施形態と同様の方法で遮水シート２０を保護マット３０の上に敷設して、保護マット３０の上に遮水シート２０を積層する。その後、遮水シート２０及び保護マット３０と固定体１０とが重なり合う部分における遮水シート２０の上に誘導加熱装置５０を配置し、誘導加熱装置５０で発熱体１２を発熱させ、遮水シート２０と固定体１０のディスク本体１１の表面１１１とを保護マット３０を介して直接的に溶着する。   As shown in FIG. 8, the water-impervious structure of the waste disposal site of the third embodiment lays a plurality of fixed bodies 10 directly on the slope 102 without laying the protective mat 30 directly on the slope 102. A protective mat 30 is laid on the fixed body 10, a water-impervious sheet 20 is laid thereon, and the water-impervious sheet 20 and the surface 111 of the disk body 11 of the fixed body 10 are welded via the protective mat 30. Is. When constructing this water shielding structure, the protective mat 30 is not laid on the slope 102, but a plurality of fixed bodies 10 are arranged at intervals on the slope 102. Then, the protective mat 30 is placed at its upper end. It is laid on the fixed body 10 by embedding it in the locking groove 104 and fixing it, and spreading the wound protective mat 30 downward from above. Further, the water shielding sheet 20 is laid on the protective mat 30 by the same method as in the first embodiment, and the water shielding sheet 20 is laminated on the protective mat 30. Thereafter, the induction heating device 50 is disposed on the water shielding sheet 20 in the portion where the water shielding sheet 20 and the protective mat 30 and the fixed body 10 overlap, and the heating element 12 is caused to generate heat by the induction heating device 50. And the surface 111 of the disk body 11 of the fixed body 10 are directly welded via the protective mat 30.

尚、第３実施形態では、固定体１０に代えて、図５の固定体１０ａを用いると好ましい。固定体１０ａを用いることにより、溶けた熱可塑性樹脂１４ａは不織布等にも滲み込ませ接着剤として機能させることができるので、例えば不織布等の保護マット３０を用いて遮水シート２０の下側に積層する場合に、遮水シート２０と保護マット３０を合わせて固定体１０ａに容易且つ確実に固定することが可能である。また、保護マット３０と遮水シート２０を順次敷設する構成に代え、保護マット３０と遮水シート２０が一体化した積層シートを敷設する構成とすることも可能である。   In the third embodiment, it is preferable to use the fixed body 10a of FIG. By using the fixed body 10a, the melted thermoplastic resin 14a can also be infiltrated into a nonwoven fabric and the like to function as an adhesive. For example, a protective mat 30 such as a nonwoven fabric is used on the lower side of the water shielding sheet 20. In the case of stacking, the water shielding sheet 20 and the protective mat 30 can be combined and fixed to the fixed body 10a easily and reliably. Moreover, it can replace with the structure which lays the protection mat 30 and the water shielding sheet 20 one by one, and can also be set as the structure which lays the laminated sheet in which the protection mat 30 and the water shielding sheet 20 were integrated.

第３実施形態では、積層状態の遮水シート２０及び保護マット３０は第１、第２実施形態より重量が嵩むものの、固定片等が取付けられるものよりも軽量で取り扱い容易にすることができ、固定体１０と遮水シート２０の固定箇所における引張荷重を小さくして、長大な遮水シート２０を敷設することができる。その他に第１実施形態と同様の効果が得られる。   In the third embodiment, the laminated water-impervious sheet 20 and the protective mat 30 are heavier than the first and second embodiments, but can be lighter and easier to handle than those to which fixed pieces or the like are attached, The long water-impervious sheet 20 can be laid down by reducing the tensile load at the fixed part of the fixed body 10 and the water-impervious sheet 20. In addition, the same effects as those of the first embodiment can be obtained.

〔実施形態の変形例等〕
本明細書開示の発明には、各発明や実施形態等の構成の他に、これらの部分的な構成を本明細書開示の他の構成に変更して特定したもの、或いはこれらの構成に本明細書開示の他の構成を付加して特定したもの、或いはこれらの部分的な構成を部分的な作用効果が得られる限度で削除して特定した上位概念化したものも含まれ、下記のような変形例も包含される。 [Modifications of Embodiment, etc.]
In addition to the configurations of the inventions and embodiments, the invention disclosed in the present specification includes those specified by changing these partial configurations to other configurations disclosed in the present specification, or these configurations. Also included are those specified by adding other configurations disclosed in the specification, or those superordinate concepts specified by deleting these partial configurations to the extent that partial effects can be obtained. Variations are also included.

例えば上記実施形態の溶着部は、ディスク本体１１、１１ａを溶着材で形成して構成したが、固定体の表面側に設けられる溶着部であれば適宜であり、例えばディスク本体１１の表面に層状に設けられる溶着層等とすることも可能である。また、溶着部、遮水シート２０、熱可塑性樹脂１４ａ、発熱体１２、１２ａ、保護マット３０の素材も、ポリエチレン以外に本発明に適用可能な範囲内で適宜である。また、固定体１０、１０ａの構成も本発明に適用可能な範囲内で適宜であり、又、固定体１０、１０ａを設ける間隔は、地形等に応じて略同一ピッチや若干の可変的なピッチで設けることが可能である。   For example, the welded portion of the above embodiment is formed by forming the disk main bodies 11 and 11a with a welding material. However, the welded portion is appropriate as long as it is a welded portion provided on the surface side of the fixed body. It is also possible to use a welded layer or the like provided on the substrate. Moreover, the material of the welded portion, the water shielding sheet 20, the thermoplastic resin 14a, the heating elements 12, 12a, and the protective mat 30 is also appropriate within the range applicable to the present invention other than polyethylene. The configuration of the fixed bodies 10 and 10a is also appropriate within the range applicable to the present invention, and the intervals at which the fixed bodies 10 and 10a are provided are substantially the same pitch or a slightly variable pitch depending on the terrain or the like. Can be provided.

また、発熱体１２、１２ａを誘導加熱装置５０による電磁誘導で加熱する以外の加熱方式で溶融し、溶着する遮水構造及びその施工方法とすることも可能であり、例えば施工時に、ディスク本体１１と遮水シート２０との間で電熱ごて等の加熱装置で溶融を行って溶着する構成等とする。また、誘導加熱装置５０が、計測温度が所定設定温度に到達した時に完了信号を出力する構成に代えて、誘導加熱装置５０に設定時間を記憶する記憶部とタイマーを設け、制御部が誘導加熱装置５０の起動を認識してタイマーで時間を計測し、前記設定時間に到達した時に完了信号を出力する構成等とすることも可能である。   Further, it is possible to adopt a water shielding structure in which the heating elements 12 and 12a are melted and welded by a heating method other than heating by electromagnetic induction by the induction heating device 50 and a construction method thereof. It is set as the structure etc. which fuse | melt with a heating apparatus, such as an electric heating iron, and weld between the water-shielding sheet 20 and the like. Moreover, instead of the configuration in which the induction heating device 50 outputs a completion signal when the measured temperature reaches the predetermined set temperature, the induction heating device 50 is provided with a storage unit and a timer for storing the set time, and the control unit is induction heating. It is also possible to recognize the activation of the device 50, measure the time with a timer, and output a completion signal when the set time is reached.

本発明は、廃棄物処分場に遮水処理を行う際に利用することができる。   The present invention can be used when water shielding treatment is performed at a waste disposal site.

１０、１０ａ…固定体 １１、１１ａ…ディスク本体 １１１…表面 １１２…凹部 １１３…下面 １２、１２ａ…発熱体 １３、１３ａ…固定用アンカー １３１…スリーブ １３１ｍ…頭部 １３１ｎ…拡開部 １３２…打込ピン １４ａ…熱可塑性樹脂 ２０…遮水シート ３０…保護マット ５０…誘導加熱装置 ５１…コイルターミナル ５２…電源部 ５３…温度センサー １０１…上面 １０２…斜面 １０３…底面 １０４…係止溝 DESCRIPTION OF SYMBOLS 10, 10a ... Fixed body 11, 11a ... Disc main body 111 ... Surface 112 ... Recess 113 ... Lower surface 12, 12a ... Heating body 13, 13a ... Anchor for fixing 131 ... Sleeve 131m ... Head 131n ... Expanding part 132 ... Driving Pin 14a ... thermoplastic resin 20 ... water shielding sheet 30 ... protective mat 50 ... induction heating device 51 ... coil terminal 52 ... power supply 53 ... temperature sensor 101 ... top surface 102 ... slope 103 ... bottom surface 104 ... locking groove

Claims (4)

発熱体と溶着部を表面側に有し、廃棄物処分場の斜面に間隔を開けて複数設けられる固定体と、
前記複数の固定体上に敷設される遮水シートとを備え、
前記複数の固定体の前記溶着部と前記遮水シートとを前記発熱体による加熱で直接的若しくは間接的に溶着することを特徴とする廃棄物処分場の遮水構造。 A heating element and a welded portion on the surface side, a fixed body provided with a plurality at intervals on the slope of the waste disposal site;
A water shielding sheet laid on the plurality of fixed bodies,
A water shielding structure for a waste disposal site, wherein the welded portions and the water shielding sheets of the plurality of fixed bodies are welded directly or indirectly by heating with the heating element. 前記固定体の前記表面側に、熱可塑性樹脂で被覆した前記発熱体を設けることを特徴とする請求項１記載の廃棄物処分場の遮水構造。   The water shielding structure for a waste disposal site according to claim 1, wherein the heating element coated with a thermoplastic resin is provided on the surface side of the fixed body. 電磁誘導により発熱する発熱体と溶着部を表面側に有する固定体を廃棄物処分場の斜面に間隔を開けて複数設ける工程と、
前記複数の固定体上に遮水シートを敷設する工程と、
前記遮水シートと前記固定体とが重なり合う部分における前記遮水シートの上に誘導加熱装置を配置し、前記誘導加熱装置で前記発熱体を発熱させて前記遮水シートと前記固定体の前記溶着部とを直接的若しくは間接的に溶着する工程と、を備えることを特徴とする廃棄物処分場の遮水構造の施工方法。 A step of providing a plurality of heating elements that generate heat by electromagnetic induction and a fixed body having a welding portion on the surface side at intervals on the slope of the waste disposal site;
Laying a water shielding sheet on the plurality of fixed bodies;
An induction heating device is disposed on the water shielding sheet in a portion where the water shielding sheet and the fixed body overlap, and the heat generating body is heated by the induction heating device to weld the water shielding sheet and the fixed body. And a step of welding the part directly or indirectly. A method for constructing a water-blocking structure of a waste disposal site. 前記誘導加熱装置に温度センサーを設けると共に、所定の設定温度を記憶し、
前記誘導加熱装置で前記発熱体を発熱させる際に、前記温度センサーで前記発熱部分に対応する前記遮水シートの温度を計測し、
前記誘導加熱装置は、前記計測温度を取得し、前記計測温度が前記所定設定温度に到達した時に出力部から完了信号を出力することを特徴とする請求項３記載の廃棄物処分場の遮水構造の施工方法。 A temperature sensor is provided in the induction heating device, and a predetermined set temperature is stored,
When the heating element is heated by the induction heating device, the temperature sensor measures the temperature of the water shielding sheet corresponding to the heating portion,
The said induction heating apparatus acquires the said measured temperature, and outputs the completion signal from an output part, when the said measured temperature reaches the said predetermined setting temperature, Water shielding of the waste disposal site of Claim 3 characterized by the above-mentioned. Construction method of structure.
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