JP2010022969A - Soil-covering structure for final disposal site of waste, and soil-covering method for final disposal site of waste - Google Patents

Soil-covering structure for final disposal site of waste, and soil-covering method for final disposal site of waste Download PDF

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JP2010022969A
JP2010022969A JP2008188935A JP2008188935A JP2010022969A JP 2010022969 A JP2010022969 A JP 2010022969A JP 2008188935 A JP2008188935 A JP 2008188935A JP 2008188935 A JP2008188935 A JP 2008188935A JP 2010022969 A JP2010022969 A JP 2010022969A
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waste
layer
soil
water
disposal site
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JP5386871B2 (en
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Kenji Shibata
健司 柴田
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Obayashi Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/30—Landfill technologies aiming to mitigate methane emissions

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a soil-covering structure for a final disposal site of a waste capable of permeating approximately 10-20% of rain water to the waste in order to decompose the waste, capable of discharging rain water intruded into the soil-covering structure other than rain water, and capable of suppressing thickness as compared with conventional. <P>SOLUTION: The soil-covering structure 1 for the final disposal site of the waste is provided with a base course layer 5 provided on an upper part of a waste layer 6, a water-discharging asphalt concrete layer 4 provided on an upper part of the base course layer 5, a water-permeable sheet 3 provided on an upper surface of the water-discharge asphalt concrete layer 4, and a soil-covering layer 2 provided on an upper part of the water-permeable sheet 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、廃棄物最終処分場の覆土構造及び覆土方法に関する。   The present invention relates to a soil covering structure and a soil covering method for a waste final disposal site.

従来より、廃棄物の最終処分場では、埋め立てられた廃棄物の飛散等を防止するとともに、その上部を有効利用できるように、廃棄物の上部に覆土をおこなっている。このような覆土構造には、廃棄物を分解するために、廃棄物まで雨水の１０〜２０％程度を浸透可能である機能（以下、雨水調整機能という）、及び、覆土構造内に浸入したそれ以外の雨水を排水する機能（以下、雨水排水機能という）を備えることが求められる。   Conventionally, in the final disposal site of waste, the landfill is covered with an upper part of the waste so that the landfilled waste is prevented from being scattered and the upper part can be used effectively. In such a soil covering structure, in order to decompose the waste, a function capable of penetrating about 10 to 20% of rainwater up to the waste (hereinafter referred to as a rainwater adjusting function) and that infiltrated into the soil covering structure. It is required to have a function of draining rainwater other than the above (hereinafter referred to as rainwater drainage function).

このような機能を備えた覆土構造として、例えば、特許文献１には、廃棄物の上方に開口を有する通気性防水シートを敷設し、この通気性防水シートの上方に粗粒土層と、細粒土層とを下からこの順で設け、これら粗粒土層と細粒土層との境界に勾配を設ける構成が記載されている。かかる構成によれば、粗粒土層と細粒土層の境界において、雨水がキャピラリーバリア効果により保持され、勾配に沿って外部まで流れるため、雨水排水機能が確保され、また、通気性防水シートの開口を調整することにより、廃棄物まで到達する雨水の量を調整することができるため、雨水調整機能を確保することができる。
特開２００６―２３１１５６号公報 As a soil covering structure having such a function, for example, in Patent Document 1, a breathable waterproof sheet having an opening above waste is laid, and a coarse soil layer and a fine soil layer are disposed above the breathable waterproof sheet. A structure is described in which a grain soil layer is provided in this order from the bottom, and a gradient is provided at the boundary between the coarse grain soil layer and the fine grain soil layer. According to such a configuration, rainwater is retained by the capillary barrier effect at the boundary between the coarse-grained soil layer and the fine-grained soil layer and flows to the outside along the gradient, so that the rainwater drainage function is ensured, and the breathable waterproof sheet Since the amount of rainwater that reaches the waste can be adjusted by adjusting the opening, the rainwater adjustment function can be ensured.
JP 2006-231156 A

しかしながら、特許文献１記載の覆土構造では、粗粒土層と細粒土層の間でキャピラリーバリア効果を発生させるためには、これら粗粒土層と細粒土層とを２００ｍｍ程度の厚さとしなければならず、覆土の厚さが厚くなり、その分、廃棄物を埋設することができる埋め立て容積が低減してしまうこととなる。   However, in the soil covering structure described in Patent Document 1, in order to generate the capillary barrier effect between the coarse-grained soil layer and the fine-grained soil layer, the coarse-grained soil layer and the fine-grained soil layer have a thickness of about 200 mm. Therefore, the thickness of the cover soil becomes thick, and the landfill volume in which the waste can be buried is reduced correspondingly.

本発明は、上記の問題に鑑みなされたものであり、その目的は、雨水調整機能及び雨水排水機能を備えた覆土構造の厚さを低減することである。   This invention is made | formed in view of said problem, The objective is to reduce the thickness of the soil covering structure provided with the rainwater adjustment function and the rainwater drainage function.

本発明の廃棄物最終処分場の覆土構造は、廃棄物の上方に設けられた排水性アスファルトコンクリート層と、前記排水性アスファルトコンクリート層の上面に敷設された通水シートと、を備えることを特徴とする。   The soil covering structure of the waste final disposal site of the present invention comprises a drainable asphalt concrete layer provided above the waste, and a water flow sheet laid on the upper surface of the drainable asphalt concrete layer. And

上記の覆土構造において、前記廃棄物と、前記排水性アスファルトコンクリート層との間に設けられた砂利層と、前記通水シートの上方に盛られた覆土層と、を備えてもよい。
また、前記排水性アスファルトコンクリート層の上面は、平面上の所定の位置に向かって下方に傾斜するように構成されており、前記通水シートの上方の前記所定の位置に、外部へ通じる排水用の配管が埋設されていてもよい。
また、前記通水シートは通気性を有し、前記覆土層を通り、地上まで到達するように通気管が設けられていてもよい。 Said soil covering structure WHEREIN: You may provide the gravel layer provided between the said waste, the said drainable asphalt concrete layer, and the soil covering layer piled up on the said water flow sheet | seat.
Further, the upper surface of the drainage asphalt concrete layer is configured to incline downward toward a predetermined position on a plane, and for drainage leading to the outside at the predetermined position above the water flow sheet. The pipe may be embedded.
In addition, the water-permeable sheet may have air permeability, and a ventilation pipe may be provided so as to pass through the soil covering layer and reach the ground.

また、本発明の廃棄物最終処分場の覆土方法は、前記廃棄物の上方に排水性アスファルトコンクリート層を設け、前記排水性アスファルトコンクリート層の上面に通水シートを敷設することを特徴とする。   Moreover, the soil covering method of the waste final disposal site of the present invention is characterized in that a drainable asphalt concrete layer is provided above the waste, and a water flow sheet is laid on the upper surface of the drainable asphalt concrete layer.

本発明によれば、排水性アスファルトコンクリート層及び通水シートが一部の雨水を通水可能であるため、覆土構造に雨水調整機能及び雨水排水機能を持たせることができる。さらに、これら排水性アスファルトコンクリート層及び通水シートは、従来の土砂層を設けることにより雨水調整機能及び雨水排水機能を確保する方法における土砂層の厚さに比べて厚さを抑えることができるため、廃棄物を埋設することができる埋め立て容積を増加させることができる。   According to the present invention, since the drainable asphalt concrete layer and the water flow sheet can pass a part of rainwater, the cover structure can be provided with a rainwater adjustment function and a rainwater drainage function. Furthermore, these drainable asphalt concrete layers and water-permeable sheets can suppress the thickness compared to the thickness of the sediment layer in the method of ensuring the rainwater adjustment function and the rainwater drainage function by providing a conventional sediment layer. The landfill volume in which waste can be buried can be increased.

以下、本発明の覆土構造の一実施形態を図面を参照しながら詳細に説明する。
図１は、本実施形態の最終処分場の覆土構造１を示す鉛直断面図である。同図に示すように、覆土構造１は、廃棄物層６の上方に設けられた路盤層５と、路盤層５の上方に設けられた排水性アスファルトコンクリート層４と、排水性アスファルトコンクリート層４の上面に敷設された通水性シート３と、通水性シート３の上方に設けられた覆土層２とにより構成される。 Hereinafter, an embodiment of the soil covering structure of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a vertical sectional view showing a soil covering structure 1 of a final disposal site according to this embodiment. As shown in the figure, the soil covering structure 1 includes a roadbed layer 5 provided above the waste layer 6, a drainable asphalt concrete layer 4 provided above the roadbed layer 5, and a drainable asphalt concrete layer 4. The water-permeable sheet 3 laid on the upper surface of the water-permeable sheet 3 and the cover soil layer 2 provided above the water-permeable sheet 3.

路盤層５は、廃棄物層６の上面の凹凸を吸収するために設けられ、砂利が敷き詰められてなり、非常に大きな通水性及び通気性を有する。また、路盤層５は、その厚さが１５０ｍｍ〜２００ｍｍ程度であり、上面が水平視において後述する集排水管１０の位置に向かって下方に３％程度の勾配で傾斜するように形成されている。   The roadbed layer 5 is provided to absorb irregularities on the upper surface of the waste layer 6 and is laid with gravel, and has very large water permeability and air permeability. In addition, the roadbed layer 5 has a thickness of about 150 mm to 200 mm, and the upper surface is formed so as to incline with a gradient of about 3% downward toward the position of the drainage pipe 10 described later in a horizontal view. .

排水性アスファルトコンクリート層４は、厚さは５０ｍｍ程度の空隙率の高い排水性アスファルトコンクリートが硬化してなり、路盤層５の上面に設けられた傾斜に合わせて、３％程度の勾配で傾斜している。排水性アスファルトコンクリート層４は空隙率を調整することにより、通水性を調整することができる。また、排水性アスファルトコンクリートは内部に空隙を有するため、通気性を有している。さらに、排水性アスファルトコンクリート層４は変形追従性を備えており、廃棄物層６の一部に沈下が生じた場合であっても、沈下による変形に追従して変形することができる。   The drainage asphalt concrete layer 4 is formed by hardening a drainage asphalt concrete having a thickness of about 50 mm and having a high porosity, and is inclined with a gradient of about 3% according to the inclination provided on the upper surface of the roadbed layer 5. ing. The drainage asphalt concrete layer 4 can adjust water permeability by adjusting the porosity. Moreover, since drainable asphalt concrete has a space | gap inside, it has air permeability. Furthermore, the drainage asphalt concrete layer 4 has a deformation follow-up property, and even when a part of the waste layer 6 is subsidized, it can be deformed following the deformation due to the subsidence.

排水性アスファルトコンクリート層４の上面には、通水性シート３が密着するように敷設されている。通水性シート３は通水性及び通気性を有するシート状部材からなる。このような通水性シート３としては、例えば、東洋紡績株式会社製の防根透水シートや旭化成ジオテック株式会社製の通気防水シートなどを用いることができる。本実施形態では、排水性アスファルトコンクリート層４と通水性シート３とが一体となった状態で、１０〜２０％程度の通水性が確保されるように、排水性アスファルトコンクリート層４の空隙率や厚み等が調整されている。   On the upper surface of the drainable asphalt concrete layer 4, the water-permeable sheet 3 is laid so as to be in close contact therewith. The water permeable sheet 3 is composed of a sheet-like member having water permeability and air permeability. As such a water-permeable sheet 3, for example, a water-proof permeable sheet manufactured by Toyobo Co., Ltd., a ventilation waterproof sheet manufactured by Asahi Kasei Geotech Co., Ltd., or the like can be used. In the present embodiment, in the state where the drainable asphalt concrete layer 4 and the water permeable sheet 3 are integrated, the porosity of the drainable asphalt concrete layer 4 is assured so that water permeability of about 10 to 20% is secured. Thickness etc. are adjusted.

覆土層２は、厚さ５００ｍｍ〜１５００ｍｍ程度の土砂が通水性シート３の上に盛られてなり、６０％程度の通水性を有する。覆土層２内には、水平視において２０〜３０ｍおきに水平方向に延びるように集排水管１０が埋設されている。集排水管１０は、その先端が覆土構造１の外部まで到達しており、後述するように、通水性シート３上面に沿って集排水管まで到達した雨水は集排水管１０を通して外部に排出される。また、覆土層２の下端から地表面まで上下方向に延びるようにガス排出用配管１１が埋設されている。   The soil covering layer 2 is formed by depositing earth and sand having a thickness of about 500 mm to 1500 mm on the water-permeable sheet 3 and has a water permeability of about 60%. A drainage pipe 10 is embedded in the soil covering layer 2 so as to extend in the horizontal direction every 20 to 30 m in the horizontal view. The tip of the drainage pipe 10 reaches the outside of the covering structure 1, and the rainwater that reaches the drainage pipe along the upper surface of the water-permeable sheet 3 is discharged to the outside through the drainage pipe 10 as will be described later. The Further, a gas discharge pipe 11 is embedded so as to extend in the vertical direction from the lower end of the cover layer 2 to the ground surface.

廃棄物層６の廃棄物を有機分解するためには、水分が供給される必要がある。このため、覆土構造１には雨水の１０〜２０％程度を廃棄物層６まで透過する通水性が求められる。図２は、覆土構造１における雨水の流れを示す鉛直断面図である。本実施形態では、覆土層２が６０％程度の通水性を有し、さらに、通水性シート３及び排水性アスファルトコンクリート層４が２０％程度の通水性を有するため、雨水の１０〜２０％程度が通水性シート３を通過する。また、通水性シート３及び排水性アスファルトコンクリート層４を通過した雨水は、通水性の大きい路盤層５を通って廃棄物層６まで到達し、これにより、雨水調整機能が確保されることとなる。   In order to organically decompose the waste in the waste layer 6, it is necessary to supply moisture. For this reason, the soil covering structure 1 is required to have water permeability that allows about 10 to 20% of rainwater to pass through the waste layer 6. FIG. 2 is a vertical sectional view showing the flow of rainwater in the soil covering structure 1. In this embodiment, since the soil covering layer 2 has a water permeability of about 60%, and the water-permeable sheet 3 and the drainable asphalt concrete layer 4 have a water permeability of about 20%, about 10 to 20% of rainwater. Passes through the water-permeable sheet 3. In addition, rainwater that has passed through the water-permeable sheet 3 and the drainage asphalt concrete layer 4 reaches the waste layer 6 through the roadbed layer 5 having high water permeability, thereby ensuring the rainwater adjustment function. .

また、通水性シート３まで到達した雨水のうち、廃棄物を有機分解するのに必要な分は通気性シート３及び排水性アスファルトコンクリート層４を通過するものの、残りの雨水は通水性シート３又は排水性アスファルトコンクリート層４により遮水される。この遮水された雨水は、通水性シート３及び排水性アスファルトコンクリート層４が傾斜しているため、傾斜の勾配に沿って集排水管１０まで流れる。そして、集排水管１０まで到達した雨水は集排水管１０を通して外部に排出されることにより、雨水排水機能が確保されることとなる。   Of the rainwater reaching the water permeable sheet 3, the amount necessary to organically decompose the waste passes through the air permeable sheet 3 and the drainage asphalt concrete layer 4, but the remaining rainwater is the water permeable sheet 3 or Water is blocked by the drainage asphalt concrete layer 4. Since the water-permeable sheet 3 and the drainable asphalt concrete layer 4 are inclined, the rainwater thus blocked flows to the drainage pipe 10 along the inclined gradient. The rainwater reaching the drainage pipe 10 is discharged to the outside through the drainage pipe 10, thereby ensuring the rainwater drainage function.

また、廃棄物層６の廃棄物が有機分解されるとガスが発生する。図３は、廃棄物層６から発生したガスの流れを示す鉛直断面図である。本実施形態では、路盤層５、排水性アスファルトコンクリート層４及び通水性シート３は通気性を有するため、廃棄物層６から発生したガスは、これら路盤層５、排水性アスファルトコンクリート層４及び通水性シート３を通過して、覆土層２まで到達する。そして、覆土層２まで到達したガスはガス排出用配管１１を通って地上に排出されることとなる。   Further, when the waste in the waste layer 6 is organically decomposed, gas is generated. FIG. 3 is a vertical sectional view showing the flow of gas generated from the waste layer 6. In the present embodiment, the roadbed layer 5, the drainage asphalt concrete layer 4 and the water-permeable sheet 3 have air permeability, so that the gas generated from the waste layer 6 is passed through the roadbed layer 5, the drainage asphalt concrete layer 4 and the flow-through sheet. It passes through the aqueous sheet 3 and reaches the cover layer 2. Then, the gas that reaches the soil covering layer 2 is discharged to the ground through the gas discharge pipe 11.

以上したように、本実施形態によれば、排水性アスファルトコンクリート層４を設けるとともに、排水性アスファルトコンクリート層４の上面に通水性シート３を敷設することとしたため、覆土構造１に雨水調整機能及び雨水排水機能を持たせることができる。そして、これら排水性アスファルトコンクリート層４及び通水性シート３は、従来の土砂層を設けることにより雨水調整機能及び雨水排水機能を確保する方法における土砂層の厚さに比べて厚さを抑えることができるため、廃棄物を埋設することができる埋め立て容積を増加させることができる。   As described above, according to the present embodiment, the drainage asphalt concrete layer 4 is provided and the water-permeable sheet 3 is laid on the upper surface of the drainage asphalt concrete layer 4. It can have a rainwater drainage function. And these drainable asphalt concrete layers 4 and water-permeable sheets 3 can suppress thickness compared with the thickness of the sediment layer in the method of ensuring a rainwater adjustment function and a rainwater drainage function by providing a conventional sediment layer. Therefore, the landfill volume in which waste can be buried can be increased.

また、路盤層５、排水性アスファルトコンクリート層４及び通水性シート３は通気性を有するため、廃棄物層６の廃棄物から発生したガスは、これら路盤層５、排水性アスファルトコンクリート層４及び通水性シート３を通過し、覆土層２の下端から地表面まで上下方向に延びるように設けられたガス排出用配管１１を通じて、外部へ排出されることとなる。   In addition, since the roadbed layer 5, the drainage asphalt concrete layer 4 and the water-permeable sheet 3 have air permeability, the gas generated from the waste of the waste layer 6 is passed through the roadbed layer 5, the drainage asphalt concrete layer 4 and the water-permeable sheet 3. It passes through the aqueous sheet 3 and is discharged to the outside through a gas discharge pipe 11 provided so as to extend in the vertical direction from the lower end of the covering layer 2 to the ground surface.

また、廃棄物層６に沈下が生じた場合には、排水性アスファルトコンクリート層４がこれに追従して変形する。このように排水性アスファルトコンクリート層４が変形することにより、排水性アスファルトコンクリート層４の遮水性が低下しても、上面に敷設された通水性シート３により遮水性の一部を確保することができるため雨水排水機能が大幅に低下することを防止できる。逆に、通水性シート３が破損しても、下方の排水性アスファルトコンクリート層４により遮水性の一部を確保することができるため雨水排水機能が大幅に低下することを防止できる。このため、雨水調整機能及び雨水排水機能を長期にわたって確保することができる。   Further, when the waste layer 6 sinks, the drainage asphalt concrete layer 4 deforms following this. Even if the drainage asphalt concrete layer 4 is deformed in this way, even if the drainage asphalt concrete layer 4 has a reduced water shielding property, a part of the water shielding property can be secured by the water-permeable sheet 3 laid on the upper surface. Therefore, it is possible to prevent the rainwater drainage function from greatly deteriorating. On the contrary, even if the water-permeable sheet 3 is damaged, the drainage asphalt concrete layer 4 below can secure a part of the water shielding, so that it is possible to prevent the rainwater drainage function from being significantly lowered. For this reason, a rainwater adjustment function and a rainwater drainage function are securable over a long period of time.

また、排水性アスファルトコンクリート層４のみで遮水性を確保しようとすると、排水性アスファルトコンクリート層４に目詰まりを生じてしまう虞があるが、排水性アスファルトコンクリート層４の上面に通水性シート３を敷設し、これら排水性アスファルトコンクリート層４及び通水性シート３により遮水性を確保することとしたため、排水性アスファルトコンクリート層４に到達する雨水の量が削減し、目詰まりを防止できる。   In addition, if it is attempted to ensure water shielding with only the drainable asphalt concrete layer 4, the drainable asphalt concrete layer 4 may be clogged. Since the drainage asphalt concrete layer 4 and the water-permeable sheet 3 ensure water shielding, the amount of rainwater reaching the drainage asphalt concrete layer 4 is reduced, and clogging can be prevented.

なお、本実施形態では、通水性シート３により遮水された雨水を、集排水管１０を通じて外部に排出することとしたが、これに限らず、覆土構造１の全体に亘って通水性シート３の上面を傾斜させることによっても、遮水された雨水を外部へ排出することができる。   In the present embodiment, the rainwater blocked by the water-permeable sheet 3 is discharged to the outside through the drainage pipe 10, but the water-permeable sheet 3 is not limited to this and covers the entire soil covering structure 1. It is also possible to discharge the rainwater that has been shielded to the outside by inclining the upper surface of.

本実施形態の最終処分場の覆土構造を示す鉛直断面図である。It is a vertical sectional view showing the soil covering structure of the final disposal site of this embodiment. 覆土構造における雨水の流れを示す鉛直断面図である。It is a vertical sectional view showing the flow of rainwater in the soil covering structure. 廃棄物層から発生したガスの流れを示す鉛直断面図である。It is a vertical sectional view showing the flow of gas generated from the waste layer.

符号の説明Explanation of symbols

１ 覆土構造
２ 覆土層
３ 通水性シート
４ アスファルトコンクリート層
５ 路盤層
６ 廃棄物層
１０ 集排水管
１１ ガス排出用配管 DESCRIPTION OF SYMBOLS 1 Covering structure 2 Covering layer 3 Water-permeable sheet 4 Asphalt concrete layer 5 Subbase layer 6 Waste layer 10 Drainage pipe 11 Gas discharge piping

Claims (5)

廃棄物の最終処分場の覆土構造であって、
廃棄物の上方に設けられた排水性アスファルトコンクリート層と、
前記排水性アスファルトコンクリート層の上面に敷設された通水シートと、を備えることを特徴とする
廃棄物最終処分場の覆土構造。 A soil covering structure for the final disposal site of waste,
A drainable asphalt concrete layer provided above the waste;
A soil covering structure for a waste final disposal site, comprising: a water flow sheet laid on an upper surface of the drainable asphalt concrete layer. 請求項１記載の最終処分場の覆土構造であって、
前記廃棄物と、前記排水性アスファルトコンクリート層との間に設けられた砂利層と、
前記通水シートの上方に盛られた覆土層と、を備えることを特徴とする廃棄物最終処分場の覆土構造。 The soil covering structure of the final disposal site according to claim 1,
A gravel layer provided between the waste and the drainage asphalt concrete layer;
A soil covering structure for a waste final disposal site, comprising a soil covering layer stacked above the water flow sheet. 請求項１又は２記載の廃棄物最終処分場の覆土構造であって、
前記排水性アスファルトコンクリート層の上面は、平面上の所定の位置に向かって下方に傾斜するように構成されており、
前記通水シートの上方の前記所定の位置に、外部へ通じる排水用の配管が埋設されていることを特徴とする廃棄物最終処分場の覆土構造。 The soil covering structure of the waste final disposal site according to claim 1 or 2,
The upper surface of the drainage asphalt concrete layer is configured to incline downward toward a predetermined position on a plane,
A soil covering structure for a waste final disposal site, wherein drainage pipes leading to the outside are embedded in the predetermined position above the water flow sheet. 請求項１から３のうち何れか１項記載の廃棄物最終処分場の覆土構造であって、
前記通水シートは通気性を有し、
前記覆土層を通り、地上まで到達するように通気管が設けられていることを特徴とする廃棄物最終処分場の覆土構造。 It is a soil covering structure of the waste final disposal site according to any one of claims 1 to 3,
The water-permeable sheet has air permeability,
A soil covering structure for a waste final disposal site, wherein a ventilation pipe is provided so as to reach the ground through the soil covering layer. 廃棄物の最終処分場の覆土方法であって、
前記廃棄物の上方に排水性アスファルトコンクリート層を設け、
前記排水性アスファルトコンクリート層の上面に通水シートを敷設することを特徴とする廃棄物最終処分場の覆土方法。 A method of covering soil at a final disposal site for waste,
A drainable asphalt concrete layer is provided above the waste,
A soil covering method for a waste final disposal site, wherein a water-permeable sheet is laid on an upper surface of the drainable asphalt concrete layer.
JP2008188935A 2008-07-22 2008-07-22 Soil covering structure of waste final disposal site, soil covering method of waste final disposal site Expired - Fee Related JP5386871B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
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JP2010214337A (en) * 2009-03-18 2010-09-30 Ohbayashi Corp Soil-covering structure of final waste disposal site, and method of soil-covering final waste disposal site

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JPS5847808A (en) * 1981-09-11 1983-03-19 Taisei Doro Kk Pavement of sloped ground
JPH11226535A (en) * 1998-02-12 1999-08-24 Osuto Land:Kk Method for preventing pollution diffusion from landfill site or discarded waste
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JP2002239492A (en) * 2001-02-21 2002-08-27 Ohbayashi Corp Method for filling waste in landfill
JP2004181309A (en) * 2002-12-02 2004-07-02 Okumura Corp Water sealing structure of waste disposal plant and construction method therefor
JP2005254067A (en) * 2004-03-09 2005-09-22 Maeda Corp Construction method for finally covering waste final disposal site with soil
JP2007275774A (en) * 2006-04-06 2007-10-25 Konoike Constr Ltd Final disposal site of waste

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5847808A (en) * 1981-09-11 1983-03-19 Taisei Doro Kk Pavement of sloped ground
JPH11226535A (en) * 1998-02-12 1999-08-24 Osuto Land:Kk Method for preventing pollution diffusion from landfill site or discarded waste
JP2000189920A (en) * 1998-12-28 2000-07-11 Taisei Corp Water impervious structure
JP2002239492A (en) * 2001-02-21 2002-08-27 Ohbayashi Corp Method for filling waste in landfill
JP2004181309A (en) * 2002-12-02 2004-07-02 Okumura Corp Water sealing structure of waste disposal plant and construction method therefor
JP2005254067A (en) * 2004-03-09 2005-09-22 Maeda Corp Construction method for finally covering waste final disposal site with soil
JP2007275774A (en) * 2006-04-06 2007-10-25 Konoike Constr Ltd Final disposal site of waste

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010214337A (en) * 2009-03-18 2010-09-30 Ohbayashi Corp Soil-covering structure of final waste disposal site, and method of soil-covering final waste disposal site

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