JP2007100363A - Device and method for embedding vent pipe, and waste stabilizing method - Google Patents

Device and method for embedding vent pipe, and waste stabilizing method Download PDF

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JP2007100363A
JP2007100363A JP2005290779A JP2005290779A JP2007100363A JP 2007100363 A JP2007100363 A JP 2007100363A JP 2005290779 A JP2005290779 A JP 2005290779A JP 2005290779 A JP2005290779 A JP 2005290779A JP 2007100363 A JP2007100363 A JP 2007100363A
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pipe
steel pipe
lid
waste
tip
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Masayoshi Umeda
雅芳 梅田
Masatoshi Tsubaki
雅俊 椿
Tatsuya Shimomura
達也 下村
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Asahi Kasei Construction Materials Corp
Tokyu Construction Co Ltd
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Asahi Kasei Construction Materials Corp
Tokyu Construction Co Ltd
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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 device for efficiently embedding a vent pipe down to a desired depth in a waste layer, without using water. <P>SOLUTION: The device for embedding the vent pipe is formed of a hollow steel pipe 20, a cover body 10 attached to the tip of the steel pipe 20, and the vent pipe 30 inserted into the steel pipe 20 and having the tip thereof attached to the cover body 10. The vent pipe 30 is set up by winding a spiral elastic body 31 on a cylindrical nonwoven fabric 32. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、廃棄物処分場において投棄された廃棄物を安定化するために廃棄物層内に通気パイプを埋設する方法と、これに使用する装置、及び、該装置を用いた廃棄物の安定化方法に関する。   The present invention relates to a method for embedding a ventilation pipe in a waste layer in order to stabilize waste dumped at a waste disposal site, a device used therefor, and stabilization of waste using the device. It relates to the conversion method.

廃棄物を投棄して処分する処理場や埋立地では、有害なガスが大気中に拡散することを防止するために、早期に安定化する方法が開発されている。例えば、特許文献１には、廃棄物層内に通気パイプを埋設し、該通気パイプを介して廃棄物層内から有害なガスを吸引排除する方法が開示されている。   At treatment plants and landfills where waste is dumped and disposed of, methods for stabilizing it early have been developed in order to prevent harmful gases from diffusing into the atmosphere. For example, Patent Document 1 discloses a method in which a vent pipe is embedded in a waste layer, and harmful gas is sucked out from the waste layer through the vent pipe.

このような廃棄物層内に通気パイプを埋設する方法としては、削孔式のボーリングマシーンを使用して廃棄物層を削孔して通気パイプを挿入する方法が採られていた。   As a method of embedding a ventilation pipe in such a waste layer, a method of drilling a waste layer using a drilling type boring machine and inserting a ventilation pipe has been adopted.

特開２００１−２６９６４０号公報JP 2001-269640 A

前記した通気パイプの埋設方法では、ボーリングマシーンで廃棄物層を削孔する際に、水を使用し、廃棄物や土砂などを地上に排出してしまうため、それらの処理が必要であった。また、水溶性の有害物質の溶出も問題であった。   In the above-described method for burying the aeration pipe, when the waste layer is drilled by a boring machine, water is used and waste, earth and sand, etc. are discharged to the ground. Also, elution of water-soluble harmful substances has been a problem.

また、従来の方法では、埋設しうる通気パイプの長さ（深さ）が５ｍ程度で、深度の確認も困難であった。   Moreover, in the conventional method, the length (depth) of the ventilation pipe that can be embedded is about 5 m, and it is difficult to confirm the depth.

さらに、施工スピードを上げることも要求されていた。   Furthermore, it was required to increase the construction speed.

本発明の課題は、上記従来の問題点を解決し、水を使用せずに効率よく、所望の深度に、さらに、従来よりもより深い深度まで廃棄物層内に通気パイプを埋設し、効率よく廃棄物層を安定化するための埋設装置、埋設方法を提供し、さらには、該装置を用いた廃棄物の安定化方法を提供することにある。   The object of the present invention is to solve the above-mentioned conventional problems, efficiently embed a water pipe into a waste layer at a desired depth, and further deeper than before, without using water. It is an object of the present invention to provide an embedding apparatus and an embedding method for stabilizing a waste layer, and to provide a method for stabilizing a waste using the apparatus.

本発明の第一は、中空の鋼管と、該鋼管の先端に脱着可能に取り付けられる蓋体と、前記鋼管の内側に挿入され、先端が前記蓋体に取り付けられる通気パイプとからなる、通気パイプの埋設装置であって、
前記通気パイプが、筒状の不織布と、該不織布に巻き付けた螺旋状の弾性体とからなることを特徴とする通気パイプの埋設装置である。 A first aspect of the present invention is a ventilation pipe comprising a hollow steel pipe, a lid body detachably attached to the tip of the steel pipe, and a ventilation pipe inserted inside the steel pipe and having a tip attached to the lid body. An embedded device of
The vent pipe embedment apparatus is characterized in that the vent pipe includes a cylindrical nonwoven fabric and a spiral elastic body wound around the nonwoven fabric.

本発明の第二は、前記本発明の通気パイプの埋設装置を用いた、廃棄物処分場における通気パイプの埋設方法であって、
先端に蓋体を取り付けた通気パイプを鋼管内に挿入して鋼管の先端と蓋体とを係止した状態で蓋体を下方に向け、鋼管に回転を与えて廃棄物層内へねじ込み、蓋体が所定の深さに到達した時点で、蓋体と通気パイプを残して該鋼管を軸方向に引き上げることを特徴とする通気パイプの埋設方法である。 The second of the present invention is a method for burying a vent pipe in a waste disposal site using the vent pipe burying apparatus of the present invention,
A ventilation pipe with a lid attached to the tip is inserted into the steel pipe, the tip of the steel pipe and the lid are locked, the lid is turned downward, the steel pipe is rotated and screwed into the waste layer, and the lid When the body reaches a predetermined depth, the steel pipe is pulled up in the axial direction while leaving the lid and the ventilation pipe.

本発明の第三は、前記本発明の通気パイプの埋設装置を用いた、廃棄物処分場における廃棄物の安定化方法であって、
先端に蓋体を取り付けた通気パイプを鋼管内に挿入して鋼管の先端と蓋体とを係止した状態で蓋体を下方に向け、鋼管に回転を与えて廃棄物層内へねじ込み、蓋体が所定の深さに到達した時点で、蓋体と通気パイプを残して該鋼管を軸方向に引き上げることにより、廃棄物層内に通気パイプを埋設し、
該通気パイプを介して少なくとも加圧空気を廃棄物層内に送り込むことを特徴とする廃棄物の安定化方法である。 A third aspect of the present invention is a method for stabilizing waste in a waste disposal site using the above-described apparatus for embedding a ventilation pipe according to the present invention,
A ventilation pipe with a lid attached to the tip is inserted into the steel pipe, the tip of the steel pipe and the lid are locked, the lid is turned downward, the steel pipe is rotated and screwed into the waste layer, and the lid When the body reaches a predetermined depth, the steel pipe is pulled up in the axial direction, leaving the lid and the ventilation pipe, and the ventilation pipe is embedded in the waste layer,
A method for stabilizing waste, wherein at least pressurized air is fed into the waste layer through the ventilation pipe.

本発明の埋設装置は、通気パイプが不織布と螺旋状の弾性体とによって構成されているため、可撓性に優れ、取り扱いが容易であり、鋼管への挿入時にも、埋設作業に備えて下方に向けた鋼管の下方先端から容易に挿入することができ、作業を効率よく行うことができる。よって、１日当たりの埋設本数が大幅に向上する。また、不織布を用いていることから通気パイプ全体が目詰まりするようなことがなく、良好な通気性が維持される。   In the embedding device of the present invention, since the ventilation pipe is composed of a nonwoven fabric and a spiral elastic body, it is excellent in flexibility and easy to handle. It can be easily inserted from the lower end of the steel pipe toward the head, and work can be performed efficiently. Therefore, the number of buried burrs per day is greatly improved. Moreover, since the nonwoven fabric is used, the whole ventilation pipe is not clogged, and good air permeability is maintained.

また、埋設作業時に水を用いることなく、廃棄物層内の廃棄物や土砂を層外に排出することもないため、有害物質の溶出や、排出した廃棄物や土砂などの処理の問題も発生しない。   In addition, waste and earth and sand in the waste layer are not discharged out of the waste layer without using water during burial work, so there are problems of elution of harmful substances and disposal of discharged waste and earth and sand. do not do.

さらに、本発明の埋設方法においては、通気パイプを蓋体に取り付けて鋼管のねじ込みと同時に埋設してしまうため、鋼管のねじ込み深さがそのまま通気パイプの埋設深さとなり、深度の確認が容易で、所定の深さまで確実に通気パイプを埋設することができる。   Furthermore, in the embedding method of the present invention, since the ventilation pipe is attached to the lid and embedded at the same time as the screwing of the steel pipe, the screwing depth of the steel pipe becomes the embedding depth of the ventilation pipe as it is, and it is easy to check the depth. The ventilation pipe can be reliably embedded to a predetermined depth.

よって、本発明によれば、廃棄物処理場の安定化をより早く、確実に、且つ広範囲に行うことができる。   Therefore, according to the present invention, stabilization of the waste disposal site can be performed more quickly, reliably, and in a wide range.

本発明の埋設装置及び埋設方法、安定化方法を、好ましい実施形態を挙げて詳細に説明する。   The embedding apparatus, embedding method, and stabilization method of the present invention will be described in detail with reference to preferred embodiments.

図１は本発明の埋設装置の好ましい一実施形態を示す斜視図であり、図中、１０は蓋体、１１ａ，１１ｂはＶ字羽根、１２は蓋板、１３は嵌合筒、１４はパイプ取付筒、１５は孔、２０は鋼管、２１は突起、３０は通気パイプ、３１は弾性体、３２は不織布である。尚、図中の鋼管２０は内部の構成を示すため、一部を切り欠いた状態で示す。以下、各部材について説明する。   FIG. 1 is a perspective view showing a preferred embodiment of the embedding device of the present invention. In the figure, 10 is a lid, 11a and 11b are V-shaped blades, 12 is a lid plate, 13 is a fitting cylinder, and 14 is a pipe. An attachment cylinder, 15 is a hole, 20 is a steel pipe, 21 is a projection, 30 is a ventilation pipe, 31 is an elastic body, and 32 is a nonwoven fabric. In addition, in order to show the internal structure, the steel pipe 20 in the figure is shown in a partially cutout state. Hereinafter, each member will be described.

〔蓋体１０〕
蓋体１０は、鋼管２０の先端に取り付けて該鋼管２０を閉塞し、鋼管２０内に廃棄物層内の廃棄物や土砂が入り込むのを防止する部材であり、同時に、通気パイプ３０の先端を取り付けることで鋼管２０を廃棄物層内にねじ込む際に同時に通気パイプ３０を埋設させる部材でもある。 [Cover 10]
The lid 10 is a member that attaches to the tip of the steel pipe 20 to close the steel pipe 20 and prevents the waste and earth and sand in the waste layer from entering the steel pipe 20. It is also a member which embeds the ventilation pipe 30 at the same time when the steel pipe 20 is screwed into the waste layer by being attached.

図２に本例の蓋体１０の正面図（ａ）、側面図（ｂ）、上面図（ｃ）、下面図（ｄ）を示す。   FIG. 2 shows a front view (a), a side view (b), a top view (c), and a bottom view (d) of the lid 10 of this example.

本例の蓋体１０は、鋼管２０の先端を閉塞する蓋板１２と、先端から蓋板１２に向かってテーパー状に広がるＶ字羽根１１ａ，１１ｂを有している。Ｖ字羽根１１ａ，１１ｂはそれぞれ、蓋板１２の中央を貫く法線より放射状に取り付けられ、先端から蓋板１２に向かってテーパー状に広がる直角三角形状を呈している。本例では、該三角形の底辺が蓋板１２より飛び出した１１ｂと、蓋板１２内に収まった１１ａとを横断面が十字形になるように組み合わせて用いているが、本発明においてはこれに限定されるものではなく、必要に応じて枚数や横断面の形状（互いに隣接する２枚の羽根のなす角度）を適宜変更することが可能である。   The lid body 10 of this example includes a lid plate 12 that closes the tip of the steel pipe 20 and V-shaped blades 11 a and 11 b that spread from the tip toward the lid plate 12 in a tapered shape. Each of the V-shaped blades 11 a and 11 b is attached radially from a normal line that penetrates the center of the lid plate 12 and has a right-angled triangle shape that tapers from the tip toward the lid plate 12. In this example, the triangle base 11b protruding from the cover plate 12 and 11a within the cover plate 12 are used in combination so that the cross-section is a cross shape. It is not limited, and the number and the shape of the cross section (an angle formed by two adjacent blades) can be appropriately changed as necessary.

本例においては、このようなＶ字羽根１１ａ，１１ｂを備えた蓋体を用いることにより、鋼管のねじ込みの際に、先端部においてＶ字羽根１１ａ，１１ｂが廃棄物や土砂を効率よく押しのけて鋼管の軸方向への進行を促す。また、Ｖ字羽根１１ａ、１１ｂが鋼管よりも大幅に外側に突出していないため、該羽根に廃棄物がからまることがなく、よって、従来よりも深い深度まで鋼管をねじ込むことができ、具体的には最大で３０ｍ程度の深さまで鋼管をねじ込むことが可能である。   In this example, by using such a lid provided with V-shaped blades 11a and 11b, the V-shaped blades 11a and 11b efficiently push waste and earth and sand at the tip when the steel pipe is screwed. Encourage the progress of the steel pipe in the axial direction. In addition, since the V-shaped blades 11a and 11b do not protrude outward significantly from the steel pipe, waste does not get entangled in the blade, and therefore, the steel pipe can be screwed to a deeper depth than before. Can screw a steel pipe to a depth of up to about 30 m.

本例の蓋板１２には鋼管２０の取り付け側に鋼管２０の先端を脱着可能に取り付けるための嵌合筒１３が設けられている。嵌合筒１３の外径は、鋼管２０の内径以下であり、鋼管２０の先端内側に形成された突起２２の先端に対応する径よりも大きく形成されている。   The lid plate 12 of the present example is provided with a fitting cylinder 13 for attaching the tip of the steel pipe 20 to the attachment side of the steel pipe 20 so as to be detachable. The outer diameter of the fitting cylinder 13 is equal to or smaller than the inner diameter of the steel pipe 20 and is larger than the diameter corresponding to the tip of the protrusion 22 formed on the inner side of the tip of the steel pipe 20.

また、本例の嵌合筒１３には略Ｌ字形の切り欠き部が２箇所形成されており、該嵌合筒１３を鋼管２０内に挿入した際には、該切り欠き部のＬ字の縦線内を鋼管２０内の突起２１が通過し、さらに鋼管２０を嵌合筒１３に対して一方向に回転させることにより、突起２１が切り欠き部のＬ字の横線（係止部１３ｂ）内に入り込んで、鋼管２０と蓋体１０とが係止される。   Further, the fitting cylinder 13 of this example has two substantially L-shaped notches, and when the fitting cylinder 13 is inserted into the steel pipe 20, the L-shaped notch of the notch is formed. The protrusion 21 in the steel pipe 20 passes through the vertical line, and further the steel pipe 20 is rotated in one direction with respect to the fitting cylinder 13, whereby the protrusion 21 has an L-shaped horizontal line (locking part 13b). The steel pipe 20 and the lid body 10 are locked by entering the inside.

さらに、本例の嵌合筒１３に形成された切り欠き部には、Ｌ字の頂部の開口端の一方、即ち、鋼管２０の回転方向においてＬ字の横線とは反対側が、テーパー状に広がっている（テーパー部１３ａ）。   Further, in the cutout portion formed in the fitting cylinder 13 of this example, one of the open ends of the L-shaped top portion, that is, the side opposite to the L-shaped horizontal line in the rotation direction of the steel pipe 20 spreads in a tapered shape. (Tapered portion 13a).

上記のように、開口端の一方がテーパー状で略Ｌ字形の切り欠き部と鋼管２０の突起２１により蓋体１０と鋼管２０とを係止する構成をとることにより、蓋体１０を鋼管２０に取り付ける際には、嵌合筒１３を鋼管２０内に挿入し、鋼管２０の端部が蓋体１２に到達した時点で鋼管２０を蓋体１０に対して相対的に一方向に回転させれば、容易に係止することができる。また、鋼管２０のねじ込み後に蓋体１０を残して鋼管２０を引き上げる際には、鋼管２０を逆方向に回転させながら引き上げれば、テーパー部１３ａに到達した突起２１が該テーパー部１３ａ上面に沿って容易に切り欠き部を抜けるため、蓋体１０が鋼管２０から脱離する。   As described above, by adopting a configuration in which one end of the open end is tapered and the lid body 10 and the steel pipe 20 are locked by the substantially L-shaped cutout portion and the projection 21 of the steel pipe 20, the lid body 10 is fixed to the steel pipe 20. When the fitting tube 13 is inserted into the steel pipe 20, the steel pipe 20 can be rotated in one direction relative to the lid body 10 when the end of the steel pipe 20 reaches the lid body 12. Can be easily locked. Further, when the steel pipe 20 is pulled up while leaving the lid 10 after the steel pipe 20 is screwed, if the steel pipe 20 is pulled up while rotating in the opposite direction, the protrusion 21 that reaches the tapered portion 13a extends along the upper surface of the tapered portion 13a. Thus, the lid body 10 is detached from the steel pipe 20 so as to easily pass through the notch.

またさらに、本例の蓋体１０には、嵌合筒１３の内側に通気パイプ３０を取り付けるためのパイプ取付筒１４が形成されている。取付筒１４は、外径が通気パイプ３０の内径以下であり、該取付筒１４を通気パイプ３０内に挿入し、パイプ取付筒１４に形成した孔１５と通気パイプ３０の孔（不図示）にワイヤー等を通して蓋体１０に通気パイプ３０を固定すればよい。   Furthermore, a pipe attachment cylinder 14 for attaching the ventilation pipe 30 to the inside of the fitting cylinder 13 is formed in the lid body 10 of this example. The mounting cylinder 14 has an outer diameter equal to or smaller than the inner diameter of the ventilation pipe 30. The mounting cylinder 14 is inserted into the ventilation pipe 30, and the hole 15 formed in the pipe mounting cylinder 14 and a hole (not shown) of the ventilation pipe 30. The ventilation pipe 30 may be fixed to the lid 10 through a wire or the like.

本発明にかかる蓋体１０は、鋼管２０をねじ込む際に先端部において十分な強度を発揮すること、及び、廃棄物層中に残存することから、鋼管２０と同様の鋼で形成することが好ましいが、本発明においては特に鋼に限定されるものではない。   The lid 10 according to the present invention is preferably formed of the same steel as the steel pipe 20 because it exhibits sufficient strength at the tip when the steel pipe 20 is screwed and remains in the waste layer. However, the present invention is not particularly limited to steel.

〔鋼管２０〕
本例の鋼管２０は、前記したように、先端の内側に、蓋体１０の嵌合筒１３に設けた切り欠き部に対応する突起２１が形成されている。図３に鋼管２０を先端から見た様子を示す。 [Steel pipe 20]
As described above, in the steel pipe 20 of this example, the protrusion 21 corresponding to the notch provided in the fitting cylinder 13 of the lid 10 is formed inside the tip. FIG. 3 shows a state where the steel pipe 20 is viewed from the tip.

本発明に用いられる鋼管２０には、図４（ａ）に示す鋼管２０’のように、先端近傍の外側に螺旋状の突起４１を設けることにより、鋼管２０’の回転による廃棄物層内へのねじ込みを促進させることも可能である。尚、突起４１が鋼管２０’よりも大きく突出している場合には、埋設作業時に廃棄物が該突起４１にからまって埋設作業を妨げる恐れがあるため、最大でも突起先端の径が鋼管２０’の径の１．２倍程度に収まるように形成することが好ましい。また、図４（ｂ）に示すように、（ａ）の鋼管２０’に、図１に示すＶ字羽根１１ａ，１１ｂを持たない蓋板のみの蓋体１０’を組み合わせて用いることもできる。   The steel pipe 20 used in the present invention is provided with a spiral protrusion 41 on the outside in the vicinity of the tip as in the steel pipe 20 ′ shown in FIG. It is also possible to promote screwing. When the protrusion 41 protrudes larger than the steel pipe 20 ′, waste may get caught in the protrusion 41 during the burying operation and hinder the burying operation. Therefore, the diameter of the protrusion tip is at most the steel pipe 20 ′. It is preferable to form it so as to be within about 1.2 times the diameter. Further, as shown in FIG. 4B, the steel pipe 20 'shown in FIG.

〔通気パイプ３０〕
本発明に用いられる通気パイプ３０は、廃棄物層内に埋設後、該通気パイプ３０を通して廃棄物層内に空気や水を積極的に送り込むことで廃棄物層内を好気的環境に調整して微生物による安定化を促進させる部材である。 [Ventilation pipe 30]
The vent pipe 30 used in the present invention adjusts the inside of the waste layer to an aerobic environment by actively sending air or water into the waste layer through the vent pipe 30 after being buried in the waste layer. It is a member that promotes stabilization by microorganisms.

本発明の埋設装置の特徴は、かかる通気パイプ３０が、図１に示すように、通気性に富む筒状の不織布３２に針金等からなる螺旋状の弾性体３１を巻き付けた構成を有することにある。弾性体３１は不織布３２の内側、外側、或いは、不織布３２の間にあって、螺旋状に巻き付けて一体とされたものであればいずれでもかまわない。   The embedding device according to the present invention is characterized in that the vent pipe 30 has a configuration in which a spiral elastic body 31 made of a wire or the like is wound around a cylindrical non-woven fabric 32 having high air permeability as shown in FIG. is there. The elastic body 31 may be any one as long as it is inside the nonwoven fabric 32, outside, or between the nonwoven fabrics 32 and is integrally wound around the nonwoven fabric 32.

具体的には、カナフレックスコーポレーション社製の「カナドレン（登録商標）」が挙げられる。このような構成をとることにより、通気パイプ３０は蓋体１０のパイプ取付筒１４に取り付ける際にどの位置でもワイヤーを通すことができる。また、ロール状に巻き取った状態にすることができるため、廃棄物処理場へはロール状で供給し、埋設作業時に引き出して必要な長さに切断して用いることもできる。また、作業時に切断する場合には、埋設長さの変更も容易である。   Specifically, “Canadren (registered trademark)” manufactured by Kanaflex Corporation may be mentioned. By adopting such a configuration, the ventilation pipe 30 can pass the wire at any position when it is attached to the pipe attachment cylinder 14 of the lid 10. Moreover, since it can be made into the state wound up in roll shape, it can supply to a waste disposal site in roll shape, can be pulled out at the time of embedding work, and can be cut | disconnected and used for required length. Moreover, when cutting at the time of work, it is easy to change the embedded length.

〔埋設方法〕
次に、本発明の通気パイプの埋設方法について、図１の埋設装置を用いた場合を例に挙げて説明する。図５は埋設工程を示す模式図である。図中、５１は廃棄物層、５２は削孔、５３は充填物である。 [Embedding method]
Next, the method for burying a ventilation pipe according to the present invention will be described by taking the case of using the burying apparatus of FIG. 1 as an example. FIG. 5 is a schematic diagram showing an embedding process. In the figure, 51 is a waste layer, 52 is a drilling hole, and 53 is a filler.

本発明においては、蓋体１０に通気パイプ３０の先端を取り付けて固定し〔図５（ａ）〕、次いで通気パイプ３０を鋼管２０内に挿入し、鋼管２０を蓋体１０に係止する〔図５（ｂ）〕。尚、通気パイプ３０を鋼管２０内に先に挿入してから、通気パイプ３０の先端を蓋体１０に取り付け、次いで鋼管２０を蓋体１０に係止してもかまわない。   In the present invention, the end of the ventilation pipe 30 is attached and fixed to the lid body 10 (FIG. 5A), and then the ventilation pipe 30 is inserted into the steel pipe 20 to lock the steel pipe 20 to the lid body 10 [ FIG. 5 (b)]. Note that the air pipe 30 may be inserted into the steel pipe 20 first, the tip of the air pipe 30 may be attached to the lid body 10, and then the steel pipe 20 may be locked to the lid body 10.

本例においては、蓋体１０と鋼管２０との取り付けが、蓋体１０に設けた嵌合筒１３の切り欠き部に鋼管２０に設けた突起２１を係止するだけでよいため、他の部材や工具を必要とせず、容易に取り付けることができる。   In this example, the lid 10 and the steel pipe 20 can be attached only by locking the protrusion 21 provided on the steel pipe 20 to the cutout portion of the fitting cylinder 13 provided on the lid 10. And can be installed easily without the need for tools.

さらに、本発明においては、通気パイプ３０が不織布で形成され、十分な可撓性を有しているため、通気パイプ３を蓋体１０に取り付けてからでも、通気パイプ３０のしなりを利用して鋼管２０内に通気パイプ３０を容易に挿入することができる。よって、予め鋼管２０の先端を下方に向けて傾けた状態でねじ込み用重機に取り付け、該鋼管２０の下方の先端から通気パイプ３０を挿入することもできる。   Furthermore, in the present invention, since the ventilation pipe 30 is formed of a nonwoven fabric and has sufficient flexibility, even after the ventilation pipe 3 is attached to the lid body 10, the bending of the ventilation pipe 30 is utilized. Thus, the ventilation pipe 30 can be easily inserted into the steel pipe 20. Accordingly, the steel pipe 20 can be attached to the screwing heavy machine in a state where the tip of the steel pipe 20 is tilted downward in advance, and the ventilation pipe 30 can be inserted from the lower end of the steel pipe 20.

次いで、重機により鋼管２０に回転を与えながら廃棄物層５１内にねじ込む〔図５（ｃ）〕。この時、本例では鋼管２０の先端にＶ字羽根を有する蓋体１０が取り付けてあるため、該Ｖ字羽根によって廃棄物や土砂が押しのけられ、廃棄物や土砂を外部に排出することなく容易に所定の深さまで鋼管２０をねじ込むことができる。また、中空の鋼管２０は蓋体１０によって先端が閉塞されているため、鋼管２０内に廃棄物や土砂が入り込むこともない。   Next, the steel pipe 20 is screwed into the waste layer 51 while rotating the steel pipe 20 by a heavy machine [FIG. 5 (c)]. At this time, since the lid 10 having the V-shaped blade is attached to the tip of the steel pipe 20 in this example, the waste and the earth and sand are pushed away by the V-shaped blade, and it is easy without discharging the waste and the earth and sand to the outside. The steel pipe 20 can be screwed to a predetermined depth. Further, since the tip of the hollow steel pipe 20 is closed by the lid body 10, waste and earth and sand do not enter the steel pipe 20.

削孔５２内に蓋体１０と通気パイプ３０を残して鋼管２０を軸方向上方に引き上げる〔図５（ｄ）〕。本例では、蓋体１０と鋼管２０とが蓋体１０に設けた嵌合筒１３の切り欠き部に鋼管２０の突起２１が係止しているだけであり、該切り欠き部の開口端にテーパー部１３ａが形成されていることから、鋼管２０を蓋体１０に取り付ける時とは逆方向に回転させながら引き上げることにより、突起２１が嵌合筒１３の切り欠き部を抜けて蓋体１０が鋼管２０から容易に脱離する。   The steel pipe 20 is pulled upward in the axial direction leaving the lid body 10 and the ventilation pipe 30 in the hole 52 (FIG. 5D). In this example, the protrusion 10 of the steel pipe 20 is only locked to the notch portion of the fitting cylinder 13 provided on the lid body 10 and the steel pipe 20, and the opening end of the notch portion is provided. Since the taper portion 13a is formed, the protrusion 21 passes through the notch portion of the fitting cylinder 13 by pulling up while rotating the steel pipe 20 in the direction opposite to that when the steel tube 20 is attached to the lid body 10, and the lid body 10 is removed. Easily detached from the steel pipe 20.

鋼管２０を引き上げた後、必要に応じて蓋体（不図示）等を削孔５２の開口部に取り付けて通気パイプ３０を保持する。   After pulling up the steel pipe 20, a lid (not shown) or the like is attached to the opening of the hole 52 as necessary to hold the ventilation pipe 30.

尚、図５の埋設工程においては、通気パイプ３０と蓋体１０とを取り付けた鋼管２０を直接廃棄物層５１にねじ込んでいるが、予め鋼管２０よりも小径の削孔用鋼管を廃棄物層５１にねじ込んで、必要深度まで先端が到達することを確認することにより、廃棄物の内容等による通気パイプの埋設不能をより容易に把握して、作業効率の低下を最小限に抑えることができる。   In the embedding process of FIG. 5, the steel pipe 20 to which the ventilation pipe 30 and the lid body 10 are attached is directly screwed into the waste layer 51. By screwing into 51 and confirming that the tip reaches the required depth, it is possible to more easily grasp the inability to embed a ventilation pipe due to the contents of waste, etc., and to minimize the reduction in work efficiency .

〔安定化方法〕
本発明の安定化方法においては、上記埋設方法で埋設した通気パイプ３０を介して、少なくとも加圧空気を廃棄物層５１内に送り込むことにより、廃棄物層５１内に存在する好気性菌を活性化し、該好気性菌による廃棄物の安定化を促進する。尚、加圧空気のみを送ることで廃棄物が乾燥し、好気性菌の働きが低下するような場合には、該加圧空気を湿潤させることにより必要な水分を補うことも好ましい。また、別途加圧水を通気パイプ３０より送り込んでもかまわない。 [Stabilization method]
In the stabilization method of the present invention, the aerobic bacteria present in the waste layer 51 are activated by sending at least pressurized air into the waste layer 51 through the ventilation pipe 30 embedded by the above-described embedding method. To promote stabilization of waste by the aerobic bacteria. In addition, when wastes are dried by sending only pressurized air and the function of aerobic bacteria decreases, it is also preferable to supplement the necessary moisture by moistening the pressurized air. Alternatively, pressurized water may be separately fed from the ventilation pipe 30.

また、必要に応じて、削孔５２と通気パイプ３０との間に充填物５３を充填しても良い〔図５（ｅ）〕。充填物５３は鋼管２０を引き上げる前に鋼管２０と通気パイプ３０との間に充填しておいても、鋼管２０を引き上げた後に削孔５２と通気パイプ３０の間隙に供給して充填してもよい。   Moreover, you may fill with the filler 53 between the drilling hole 52 and the ventilation pipe 30 as needed [FIG.5 (e)]. The filling 53 may be filled between the steel pipe 20 and the ventilation pipe 30 before the steel pipe 20 is pulled up, or may be supplied and filled in the gap between the hole 52 and the ventilation pipe 30 after the steel pipe 20 is pulled up. Good.

かかる充填物５３としては砂礫や各種添加剤が用いられる。例えば、廃棄物層５１が揮発性有機塩素化合物（ＶＯＣ）に汚染されている場合には鉄粉を充填することにより、還元的脱塩素化を図ることができる。或いは、廃棄物層５１が油で汚染されている場合には、添加剤として土壌中の微生物を活性化させる栄養剤をパックにして鉄粉と共に通気パイプ３０と削孔５２との間に充填し、通気パイプ３０から加圧空気を圧入することにより浄化することができる。   As the filler 53, gravel and various additives are used. For example, when the waste layer 51 is contaminated with a volatile organic chlorine compound (VOC), reductive dechlorination can be achieved by filling with iron powder. Alternatively, when the waste layer 51 is contaminated with oil, a nutrient that activates microorganisms in the soil is packed as an additive and packed between the ventilation pipe 30 and the hole 52 together with the iron powder. It can be purified by pressurizing pressurized air from the ventilation pipe 30.

さらに、廃棄物層５１が重金属で汚染されている場合には、隣接する２本の削孔において、削孔５２と通気パイプ３０との間にさらに別の導電性パイプを電極として挿入し、一方の削孔の電極にはプラス電極を、他方の削孔の電極にはマイナス電極を接続して廃棄物層５１内に電流を流すことによって重金属イオンを回収し、浄化を図ることも可能である。   Further, when the waste layer 51 is contaminated with heavy metal, another conductive pipe is inserted as an electrode between the drilling hole 52 and the ventilation pipe 30 in the two adjacent drilling holes. It is also possible to recover the heavy metal ions by flowing a current through the waste layer 51 by connecting a plus electrode to the other hole electrode and a minus electrode to the other hole electrode. .

またさらに、廃棄物層５１の底部に水がたまり、好気性菌による安定化が滞留しているような場合には、径の大きな通気パイプを本発明の埋設装置を用いて埋設し、該通気パイプ内にポンプを落とし込んで排水することもできる。   Furthermore, in the case where water accumulates at the bottom of the waste layer 51 and stabilization by aerobic bacteria remains, a large-diameter ventilation pipe is embedded using the burying apparatus of the present invention, and the ventilation It is also possible to drain by dropping a pump into the pipe.

本発明の埋設装置の好ましい一実施形態の構成を示す斜視図である。It is a perspective view which shows the structure of preferable one Embodiment of the embedment apparatus of this invention. 図１の埋設装置の蓋体を示す図である。It is a figure which shows the cover body of the embedment apparatus of FIG. 図１の埋設装置の鋼管を下方から見た図である。It is the figure which looked at the steel pipe of the burial device of Drawing 1 from the lower part. 図１の埋設装置の鋼管の他の形態を示す図である。It is a figure which shows the other form of the steel pipe of the embedding apparatus of FIG. 図１の埋設装置を用いた通気パイプの埋設工程を示す図である。It is a figure which shows the embedding process of the ventilation pipe using the embedding apparatus of FIG.

符号の説明Explanation of symbols

１０，１０’ 蓋体
１１ａ，１１ｂ Ｖ字羽根
１２ 蓋板
１３ 嵌合筒
１３ａ テーパー部
１３ｂ 係止部
１４ パイプ取付筒
１５ 孔
２０，２０’ 鋼管
２１ 突起
３０ 通気パイプ
３１ 弾性体
３２ 不織布
４１ 突起
５１ 廃棄物層
５２ 削孔
５３ 充填物 DESCRIPTION OF SYMBOLS 10,10 'Cover body 11a, 11b V-shaped blade 12 Cover plate 13 Fitting cylinder 13a Taper part 13b Locking part 14 Pipe attachment cylinder 15 Hole 20, 20' Steel pipe 21 Projection 30 Ventilation pipe 31 Elastic body 32 Nonwoven fabric 41 Projection 51 Waste layer 52 Drilling 53 Filling

Claims (3)

中空の鋼管と、該鋼管の先端に脱着可能に取り付けられる蓋体と、前記鋼管の内側に挿入され、先端が前記蓋体に取り付けられる通気パイプとからなる、通気パイプの埋設装置であって、
前記通気パイプが、筒状の不織布と、該不織布に巻き付けた螺旋状の弾性体とからなることを特徴とする通気パイプの埋設装置。 A vent pipe embedment device comprising a hollow steel pipe, a lid body detachably attached to the tip of the steel pipe, and a vent pipe inserted inside the steel pipe and having a tip attached to the lid body,
The vent pipe embedment apparatus, wherein the vent pipe is composed of a cylindrical nonwoven fabric and a spiral elastic body wound around the nonwoven fabric. 請求項１に記載の通気パイプの埋設装置を用いた、廃棄物処分場における通気パイプの埋設方法であって、
先端に蓋体を取り付けた通気パイプを鋼管内に挿入して鋼管の先端と蓋体とを係止した状態で蓋体を下方に向け、鋼管に回転を与えて廃棄物層内へねじ込み、蓋体が所定の深さに到達した時点で、蓋体と通気パイプを残して該鋼管を軸方向に引き上げることを特徴とする通気パイプの埋設方法。 A method for burying a vent pipe in a waste disposal site using the vent pipe burying device according to claim 1,
A ventilation pipe with a lid attached to the tip is inserted into the steel pipe, the tip of the steel pipe and the lid are locked, the lid is turned downward, the steel pipe is rotated and screwed into the waste layer, and the lid A method of embedding a ventilation pipe, characterized in that when the body reaches a predetermined depth, the steel pipe is pulled up in the axial direction while leaving the lid and the ventilation pipe. 請求項１に記載の通気パイプの埋設装置を用いた、廃棄物処分場における廃棄物の安定化方法であって、
先端に蓋体を取り付けた通気パイプを鋼管内に挿入して鋼管の先端と蓋体とを係止した状態で蓋体を下方に向け、鋼管に回転を与えて廃棄物層内へねじ込み、蓋体が所定の深さに到達した時点で、蓋体と通気パイプを残して該鋼管を軸方向に引き上げることにより、廃棄物層内に通気パイプを埋設し、
該通気パイプを介して少なくとも加圧空気を廃棄物層内に送り込むことを特徴とする廃棄物の安定化方法。 A method for stabilizing waste in a waste disposal site using the vent pipe embedding device according to claim 1,
A ventilation pipe with a lid attached to the tip is inserted into the steel pipe, the tip of the steel pipe and the lid are locked, the lid is turned downward, the steel pipe is rotated and screwed into the waste layer, and the lid When the body reaches a predetermined depth, the steel pipe is pulled up in the axial direction, leaving the lid and the ventilation pipe, and the ventilation pipe is embedded in the waste layer,
A method for stabilizing waste, wherein at least pressurized air is fed into the waste layer through the ventilation pipe.
JP2005290779A 2005-10-04 2005-10-04 Device and method for embedding vent pipe, and waste stabilizing method Pending JP2007100363A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5623583B2 (en) * 2013-04-11 2014-11-12 株式会社エムエルティーソイル Waste disposal method and excavated body at waste disposal site
KR20160002583U (en) * 2015-01-15 2016-07-25 (주)광진 Digging equipment for grounding construction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0857439A (en) * 1994-08-25 1996-03-05 Kubota House Corp Treatment apparatus for gas in ground of waste landfill site
JPH11166231A (en) * 1997-12-04 1999-06-22 Teruo Takei Bottom widening existing pile and embedding machine
JP2004033171A (en) * 2002-07-08 2004-02-05 Earth Work:Kk Aeration and irrigation system for root

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0857439A (en) * 1994-08-25 1996-03-05 Kubota House Corp Treatment apparatus for gas in ground of waste landfill site
JPH11166231A (en) * 1997-12-04 1999-06-22 Teruo Takei Bottom widening existing pile and embedding machine
JP2004033171A (en) * 2002-07-08 2004-02-05 Earth Work:Kk Aeration and irrigation system for root

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5623583B2 (en) * 2013-04-11 2014-11-12 株式会社エムエルティーソイル Waste disposal method and excavated body at waste disposal site
KR20160002583U (en) * 2015-01-15 2016-07-25 (주)광진 Digging equipment for grounding construction
KR200481281Y1 (en) 2015-01-15 2016-09-07 (주)광진 Digging equipment for grounding construction

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