JPH0783879B2 - Method and apparatus for dehydration of high hydrous soil - Google Patents

Method and apparatus for dehydration of high hydrous soil

Info

Publication number
JPH0783879B2
JPH0783879B2 JP63178343A JP17834388A JPH0783879B2 JP H0783879 B2 JPH0783879 B2 JP H0783879B2 JP 63178343 A JP63178343 A JP 63178343A JP 17834388 A JP17834388 A JP 17834388A JP H0783879 B2 JPH0783879 B2 JP H0783879B2
Authority
JP
Japan
Prior art keywords
soil
water
strainer
dehydration
airtight box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP63178343A
Other languages
Japanese (ja)
Other versions
JPH0226699A (en
Inventor
健一 滝口
正治 勝又
深志 小口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maeda Corp
Original Assignee
Maeda Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maeda Corp filed Critical Maeda Corp
Priority to JP63178343A priority Critical patent/JPH0783879B2/en
Publication of JPH0226699A publication Critical patent/JPH0226699A/en
Publication of JPH0783879B2 publication Critical patent/JPH0783879B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】 「産業上の利用分野」 この発明は、汚泥、泥水シールド工法による掘削泥土な
どの高含水土の水分を脱水し、含水比を低下させるため
の方法及びその装置に関するものである。
TECHNICAL FIELD The present invention relates to a method and an apparatus for dewatering the water content of a high water content soil such as sludge and excavated mud by a mud shield construction method to reduce the water content ratio. Is.

「従来の技術、発明が解決せんとする問題点」 一般に、堀削によるシルトなどを含んだ粘性土、浚渫に
よる汚泥、泥水シールド工法による掘削泥土などの土木
工事に伴う排出残土には含水比が極めて高いものが少な
くなく、このような高含水土は産業廃棄物として扱わ
れ、これを投棄するためには少なくとも含水比を低下さ
せて普通残土として処理する必要がある。
"Problems to be solved by conventional techniques and inventions" Generally, the water content ratio of the residual soil discharged from civil engineering works such as cohesive soil containing silt by excavation, sludge by dredging, excavated mud by the mud shield method is high. There are quite a few that are extremely high, and such high hydrated soil is treated as industrial waste, and in order to dispose of it, it is necessary to reduce at least the water content and treat it as ordinary residual soil.

従来の高含水土の処理法としては、専らセメント、石灰
などの固化材を混合撹拌して固化する方法が実施されて
いるが、多量の高含水土を処理するためには固化材の材
料費として多額の費用を要し、しかも固化材として安価
なセメントなどの強アルカリ材料を使用する場合にはア
ルカリ汚染公害の問題があった。
As a conventional method for treating high hydrous soil, the method of mixing and stirring solidifying materials such as cement and lime to solidify is implemented, but in order to treat a large amount of high hydrous soil, the material cost of the solidifying material is increased. However, when a strong alkali material such as cement, which is inexpensive, is used as the solidifying material, there is a problem of alkali pollution pollution.

また、従来地中に設けた排水ピット内に高含水土を入
れ、その水分を砕石や網状管などで構成した底部濾過層
に排水して吸水パイプにより汲み上げることにより、含
水比を低下させて普通残土として処理する方法も知られ
ているが、この方法では、自然重力排水であるため、排
水距離や時間が長く効率が悪いと共に、濾過槽に目詰り
を生じ易く、その保守が容易でないなどの問題があっ
た。
In addition, a high water content soil is placed in the drainage pit that has been conventionally installed in the ground, and the water content is drained to the bottom filtration layer composed of crushed stone or reticulated pipe and pumped up with a water absorption pipe to reduce the water content ratio Although a method of treating as residual soil is also known, in this method, since it is natural gravity drainage, the drainage distance and time are long and the efficiency is low, and the filter tank is easily clogged and its maintenance is not easy. There was a problem.

さらに従来、内側壁に装着した複数の振動装置間に泥水
を透過させる透孔を備えた減圧ドレーンパイプを水平に
架設固定してなる土槽の内部に、泥水を含む掘削残土を
収容し、振動装置の振動により掘削残土に振動を与えた
上で、減圧ドレーンパイプ内に透孔を介して掘削残土か
ら分離した泥水を吸引するようにした掘削残土の処理方
法も知られている(特開昭62−50514号公報)。
Furthermore, conventionally, excavated soil containing muddy water was stored inside a soil tank in which a depressurizing drain pipe having a through hole for allowing muddy water to pass through was horizontally installed and fixed between a plurality of vibrating devices mounted on the inner wall to vibrate. There is also known a method for treating the remaining excavated soil by vibrating the excavated residual soil by the vibration of the device and then sucking the muddy water separated from the remaining excavated soil through the through hole in the depressurization drain pipe (Japanese Patent Laid-Open No. Sho-06-27) 62-50514).

しかしながら、この掘削残土の処理方法では、土槽の上
部が大気に開放されているため、掘削残土内に空気が自
由に流通して減圧ドレーンパイプによる吸水効率が極め
て悪いと共に、減圧ドレーンパイプが土槽の内側壁に装
着した複数の振動装置間に水平に架設固定されているた
め、土槽を大きくして多量の掘削残土の水分を均等に吸
水しようとすると、減圧ドレーンパイプを土槽の水平方
向多数配置するのみならず、深さ方向にも多段に配置し
なければならず、そのため吸水処理後の掘削残土の排出
が容易でない等の問題があった。
However, in this method of treating residual soil after excavation, since the upper part of the soil tank is open to the atmosphere, air freely flows inside the residual soil, the water absorption efficiency of the decompression drain pipe is extremely poor, and the decompression drain pipe is Since it is horizontally erected and fixed between multiple vibration devices installed on the inner wall of the tank, if you try to absorb a large amount of residual excavated soil evenly by enlarging the soil tank, the decompression drain pipe will be placed horizontally on the earth tank. In addition to arranging a large number in the direction, it is necessary to arrange in a multi-stage also in the depth direction. Therefore, there is a problem that it is not easy to discharge the excavated soil after the water absorption treatment.

「問題点を解決するための手段」 この発明は前記従来の課題を解決するために、脱水槽4
内に投入した高含水土中に、上下動及び横移動自在な運
搬圧入機8に取付けた気密函体6をその下部開口を下向
きにして貫入すると共に、この気密函体6の内部に下向
きに突設した複数本のストレーナー管9を貫入し、高含
水土に振動を与えて水分を滲出させ、この水分をストレ
ーナー管9により真空吸引して外部に排出するようにし
た高含水土の脱水方法を提案するものである。
"Means for Solving Problems" In order to solve the above-mentioned conventional problems, the present invention is directed to a dehydration tank 4
The airtight box 6 attached to the vertically movable and laterally movable transport press-fitting machine 8 is inserted into the highly water-containing soil with its lower opening facing downward, and at the same time, the airtight box 6 is turned downward. A method for dehydrating a highly water-containing soil by penetrating a plurality of strainer pipes 9 that are projecting, applying vibration to a highly water-containing soil to exude water, and vacuum-sucking the water by the strainer pipe 9 and discharging it to the outside. Is proposed.

またこの発明は、振動機2により振動自在に設置された
脱水槽4と、上下動及び横移動自在な運搬圧入機8に取
付けた下部が開口した気密函体6と、この気密函体6の
内部に下向きに突設され、真空ポンプ11により真空吸引
可能な複数本のストレーナー管9とからなる高含水土の
脱水装置を提案するものである。
The present invention also relates to a dehydration tub 4 which is oscillated by a vibrator 2, an airtight box 6 which is attached to a transport press-fitting machine 8 which can be moved vertically and laterally, and an open bottom portion of which is provided. The present invention proposes a dewatering device for highly hydrous soil, which comprises a plurality of strainer pipes 9 which are provided so as to project downward inside and can be vacuum-sucked by a vacuum pump 11.

またこの発明は、脱水槽4の周壁の一部に開閉自在な排
土扉5を設け、この脱水槽4をこの排土扉5側を下向き
にして回動自在としてなる高含水土の脱水装置を提案す
るものである。
Further, the present invention provides a dehydrating device for a high water content soil in which a part of the peripheral wall of the dehydrating tank 4 is provided with an openable / closable soil discharging door 5, and the dehydrating tank 4 is rotatable with the soil discharging door 5 side facing downward. Is proposed.

さらにこの発明は、ストレーナー管9を内外二重の多孔
管とし、その内外の多孔管9a,9bの間に目の細かい透水
材10を挿脱自在に装填してなる高含水土の脱水装置を提
案するものである。
Further, the present invention provides a dehydrator for a high water content soil in which the strainer tube 9 is a double porous tube having inner and outer sides, and a fine water-permeable material 10 is removably loaded between the inner and outer porous tubes 9a and 9b. It is a proposal.

「作用」 脱水槽4内に投入した多量の高含水土の一部分中に、気
密函体6をその下部開口を下向きにして貫入すると共
に、この気密函体6の内部に下向きに突設したストレー
ナー管9を貫入し、振動機2より脱水処理土に移動を与
えて水分を滲出させ、機密函体6で機密状に囲まれた部
分滲出した水分ストレーナー管9により集中的に真空吸
引して外部に排出するため、機密函体6で囲まれた高含
水土の一部分全体の水分を効率よく確実に脱水され、含
水比を低下させた普通残土として経済的に処理すること
ができる。
[Operation] The airtight box 6 is penetrated into a part of a large amount of high-moisture content soil put in the dehydration tank 4 with its lower opening facing downward, and a strainer projecting downward into the airtight box 6 The pipe 9 is penetrated and the dehydrated soil is moved from the vibrator 2 to exude water, and the exuded water strainer pipe 9 surrounded by the airtightness of the airtightness of the airtightness is concentrated by vacuum suction. Since the water is discharged to the inside, the entire water content of a portion of the high-moisture content soil surrounded by the airtight box body 6 can be efficiently and surely dehydrated, and can be economically treated as ordinary residual soil with a reduced water content ratio.

そして、気密函体6は運搬圧入機8により移動自在であ
るため、気密函体6の貫入位置を順次移動させながら多
量の高含水土全体を効率的に脱水処理することができ
る。
Further, since the airtight box 6 can be moved by the transport press-fitting machine 8, it is possible to efficiently dehydrate a large amount of highly water-containing soil while sequentially moving the penetration position of the airtight box 6.

また、脱水槽4をその排土口5を下向きにして回動自在
としたため、機密函体6及びストレーナー管9を引き抜
いた上で脱水処理した残土を脱水槽から迅速にかつ自動
的に排出することができる。
Further, since the dewatering tank 4 is rotatable with the soil discharge port 5 facing downward, the confidential soil box 6 and the strainer pipe 9 are pulled out, and the dewatered residual soil is quickly and automatically discharged from the dewatering tank. be able to.

更に、ストレーナー管9を内外二重の多孔管とし、その
内外の多孔管9a,9bの間に目の細かい透水材10を挿脱自
在に装填したため、目詰まりを少なくし、目詰まりを生
じても容易に透水材を洗浄又は交換することができる。
Furthermore, since the strainer tube 9 is a double porous tube inside and outside, and the fine water-permeable material 10 is detachably loaded between the inner and outer porous tubes 9a and 9b, the clogging is reduced and clogging occurs. Also, the water-permeable material can be easily washed or replaced.

「実施例」 以下この発明を図面に示す実施例について説明すると、
第1〜7図はこの発明の脱水装置及び脱水方法を示した
もので、ベース1上には第3図に示すように内部に振動
機2を装備した振動台3が一端を回転支点Oとして油圧
ジャッキなどにより上方に所要角度回動可能に設置さ
れ、その上の上部が開口した脱水槽4が設置されてい
る。
"Example" Hereinafter, an example of the present invention shown in the drawings will be described.
1 to 7 show a dehydrating apparatus and a dehydrating method according to the present invention. As shown in FIG. 3, a vibrating table 3 having a vibrating device 2 therein is mounted on a base 1 with one end serving as a rotation fulcrum O. A dehydration tub 4 is installed on the upper side by a hydraulic jack or the like so as to be rotatable by a required angle, and the upper part of the dehydration tub 4 is open.

脱水槽4は箱形状に形成され、振動台3の回転支点O側
の周壁にその下縁を回転支点Pとして下方に回動可能な
排土扉5が取付けられている。
The dewatering tank 4 is formed in a box shape, and an earth discharging door 5 which is rotatable downward with a lower edge thereof as a rotation fulcrum P is attached to a peripheral wall of the vibrating table 3 on the rotation fulcrum O side.

そして、この脱水槽4内にはその上部の開口部から気密
函体6が搬入され、これを脱水槽4内に投入された高含
水土である多量の脱水処理土S中に貫入するようになっ
ている。
Then, the airtight box 6 is carried into the dehydration tub 4 through the opening at the upper part thereof so that the airtight box 6 penetrates into a large amount of the dehydrated soil S which is a high water content soil put into the dehydration tub 4. Has become.

気密函体6は下部が下向きに開口した箱形に形成され、
その上面には固定台7(第1図)又はクローラーなどの
移動車輛7′(第2図)に設置したバックホーの自在ア
ーム等、上下動及び横移動自在の運搬圧入機8が取付け
られ、またその内部には上面から複数本のストレーナー
管9が下向きに突設されている。
The airtight box 6 is formed in a box shape with the lower part opened downward,
On the upper surface, a carrier press-fitting machine 8 which is vertically movable and laterally movable, such as a movable arm of a backhoe installed on a fixed base 7 (Fig. 1) or a moving vehicle 7 '(Fig. 2) such as a crawler, is attached. Inside, a plurality of strainer tubes 9 are provided so as to project downward from the upper surface.

各ストレーナー管9は先端が先鋭状をなす多孔二重管で
構成され、第6,7図に示すようにその多孔内外管9a,9b間
の間隙には不織布或いは砂などの細粒子等の比較的目の
細かい透水材10が挿脱自在に装填されており、その上端
部は真空ポンプ11のフレキシブルなバキュームホース12
から分岐する吸水枝管12′に接続した電磁弁等の開閉弁
13を有する継手管14にねじ込み式等の接合手段により着
脱自在に固定されている。
Each strainer tube 9 is composed of a perforated double tube having a sharp tip, and as shown in FIGS. 6 and 7, the gap between the perforated inner and outer tubes 9a and 9b is compared with non-woven fabric or fine particles such as sand. A fine water-permeable material 10 is inserted and removed freely, and its upper end is a flexible vacuum hose 12 of a vacuum pump 11.
Open / close valve such as solenoid valve connected to the water absorption branch pipe 12 '
It is removably fixed to a joint pipe 14 having 13 by a screwing type joining means.

なお、ストレーナー管9は気密函体6に固定することな
く、この函体上面にジャッキにより昇降自在かつ気密状
に貫入してもよい。
Note that the strainer pipe 9 may not be fixed to the airtight box 6, but may be vertically moved by a jack and airtightly penetrate into the upper surface of the box.

次に、上記のように構成された脱水装置を用いて脱水す
る方法について説明する。
Next, a method of dehydrating using the dehydrating apparatus configured as described above will be described.

先ず、脱水槽4内にその上部開口からクラムバックホー
などにより所要量の高含水土である脱水処理土Sを投入
する。
First, a required amount of dehydrated treated soil S, which is high-moisture content soil, is put into the dehydration tank 4 from its upper opening by a clam backhoe or the like.

次に、脱水槽4内の脱水処理土S上において気密函体6
を運搬圧入機8により上下ないし前後左右に移動調整し
て所要位置に位置決めした上で、運搬圧入機8により下
降作動してストレーナー管9と共に脱水処理土S中に貫
入する。
Next, the airtight box 6 is placed on the dehydrated soil S in the dehydration tank 4.
Is moved up and down or front and rear and right and left by the transport press-fitting machine 8 to be positioned at a required position, and then is lowered by the transport press-fitting machine 8 and penetrates into the dehydrated soil S together with the strainer pipe 9.

この場合、気密函体6の圧入に伴ってその内部の空気を
ストレーナー管9を通して外部に排除する。
In this case, the air inside the airtight box 6 is removed to the outside through the strainer tube 9 as the airtight box 6 is press-fitted.

なお、ストレーナー管9を気密函体6に昇降自在に設け
た場合には、気密函体6を脱水処理土S中に貫入した後
にストレーナー管9を昇降ジャッキにより脱水処理土S
中に貫入する。
When the strainer tube 9 is provided on the airtight box 6 so as to be able to move up and down, the strainer tube 9 is inserted into the dehydrated soil S and then the strainer tube 9 is lifted and jacked to remove the dehydrated soil S.
Penetrate into.

一方、気密函体6及びストレーナー管9の貫入後又は貫
入前に、脱水槽4を振動台3により振動(揺動を含む)
させ、これによって内部の脱水処理土の水分を強制的に
滲出遊離させる。
On the other hand, after or before the airtight box body 6 and the strainer pipe 9 have penetrated, the dehydration tank 4 is vibrated (including rocking) by the vibrating table 3.
By doing so, the moisture of the dehydrated soil inside is forced out and released.

なお、脱水処理土S中に振動を与える手段としては、気
密函体6の上部に振動機2を取付けて気密函体6を振動
させるようにしてもよい。
As a means for vibrating the dehydrated soil S, the vibrator 2 may be attached to the upper part of the airtight box 6 to vibrate the airtight box 6.

この状態において真空ポンプ11を駆動してバキュームホ
ース12、各吸水枝管12′を介して各ストレーナー管9内
を真空吸引し、上記遊離した水分を透水材10で濾過しな
がら吸い込んで外部に排出する。
In this state, the vacuum pump 11 is driven to suck the inside of each strainer pipe 9 through the vacuum hose 12 and each water absorption branch pipe 12 ', and the released water is filtered while being filtered by the water permeable material 10 and discharged to the outside. To do.

このとき、脱水槽4はその内部全体が気密化されている
ため、各ストレーナー管9による真空吸引につれて内圧
が低下し、水分がストレーナー管9に吸引され易くな
り、極めて効率的に脱水されることになる。
At this time, since the entire inside of the dehydration tank 4 is hermetically sealed, the internal pressure decreases as the vacuum suction is performed by each strainer tube 9, water is easily sucked into the strainer tube 9, and dehydration is performed extremely efficiently. become.

このようにして脱水槽4内の脱水処理土Sの所定部分の
脱水工程を所要時間行った後、運搬圧入機8により気密
函体6及びストレーナー管9を脱水処理土中から引抜
き、これらを脱水処理土S上の別の位置に移動し、再び
気密函体6を運搬圧入機8により上下乃至前後左右に移
動調整して所要位置に位置決めした上で、運搬圧入機8
により下降作動してストレーナー管9と共に脱水処理土
S中に貫入する。
After performing the dehydration step of the predetermined portion of the dehydrated soil S in the dehydration tank 4 for the required time in this manner, the airtight box 6 and the strainer pipe 9 are pulled out from the dehydrated soil by the transport press-in machine 8 to dehydrate them. After moving to another position on the treated soil S and again moving and adjusting the airtight box 6 by the transport press-fitting machine 8 up and down, front-rear, left-right, and positioning at the required position, the transport press-fitting machine 8
Then, it descends and penetrates into the dehydrated soil S together with the strainer pipe 9.

そして、上記同様の工程を脱水処理土Sの全体にわたっ
て繰り返して均一に脱水する。
Then, the same steps as described above are repeated over the entire dehydrated soil S for uniform dehydration.

なお、必要に応じて脱水工程の繰返しの際に脱水状況が
部分的に悪い位置に対応するストレーナー管9に接続さ
れた吸水枝管12′の開閉弁13のみを開いて他を閉じ、部
分的に集中的に脱水を行うようにすることも可能であ
る。
If necessary, when the dehydration process is repeated, only the opening / closing valve 13 of the water absorption branch pipe 12 ′ connected to the strainer pipe 9 corresponding to the position where the dehydration situation is partially bad is opened and the others are partially closed. It is also possible to intensively dehydrate.

このように脱水処理土Sを脱水処理して含水比を基準値
以下に低下させた後、振動台3を脱水槽4と共に上方に
回動して排土扉5側に傾斜させながら、また同時に必要
に応じて振動台3により脱水槽4を振動させながら、排
土扉5を開いて外部に自動的に排出する。
In this way, after the dehydrated soil S is dehydrated to reduce the water content ratio to the reference value or less, the vibrating table 3 is rotated upward together with the dehydration tank 4 and tilted toward the soil discharge door 5, and at the same time. While shaking the dehydration tank 4 with the vibrating table 3 as necessary, the soil discharging door 5 is opened and the water is automatically discharged to the outside.

なお、ストレーナー管9に目詰まりを生じたときにはそ
の内部に清水を圧送して掃除し、また長期使用などで目
詰まりのひどい場合には透水材10を交換する。
When the strainer tube 9 is clogged, clean water is pumped into the strainer tube 9 for cleaning, and when the clogging is severe due to long-term use, the water permeable material 10 is replaced.

「発明の効果」 以上の通りこの発明によれば、脱水槽内に投入した高含
水土中に、上下動及び横移動自在な運搬圧入機に取付け
た気密函体をその下部開口を下向きにして貫入すると共
に、前記気密函体の内部に下向きに突設したストレーナ
ー管を貫入し、前記脱水槽に振動を与えて水分を滲出さ
せ、この水分を前記ストレーナー管により真空吸引して
外部に排出するので、脱水槽の振動により水分の強制滲
出並びに気密函体内部の気密化と真空吸引による吸水作
用の強化の相乗作用により、気密函体を貫入した部分の
高含水土の水分を集中的に効率よく確実かつ均一に脱水
させ、さらに気密函体及びストレーナー管の貫入位置を
順次変更移動させながら、同様の脱水工程を脱水処理土
の全体にわたって緊密に繰り返して含水比を均一に低下
させた普通残土として経済的に処理することができる。
[Advantages of the Invention] As described above, according to the present invention, an airtight box mounted on a transport press-fitting machine that can be vertically moved and moved laterally is placed in a highly water-containing soil placed in a dehydration tank with its lower opening facing downward. While penetrating, penetrating a strainer tube projecting downward inside the airtight box, vibrating the dehydration tank to exude water, and sucking this water in vacuum by the strainer tube and discharging it to the outside. Therefore, due to the synergistic action of forced exudation of water by vibration of the dehydration tank, airtightness inside the airtight box, and strengthening of water absorption by vacuum suction, the water content of the high hydrous soil in the part that penetrates the airtight box can be efficiently concentrated. Dehydrate well and reliably and uniformly, and while changing the penetration positions of the airtight box and strainer pipe in sequence, the same dehydration process is repeated closely throughout the dehydrated soil to reduce the water content uniformly. It can be treated economically as ordinary waste left over.

更に、脱水槽の周壁の一部に開閉自在な排土扉を設け、
この脱水槽を排土扉側を下向きにして回動自在としたの
で、脱水処理土を脱水槽から迅速かつ自動的に排出する
ことができる。
In addition, a soil discharge door that can be opened and closed is provided on part of the peripheral wall of the dehydration tank,
Since the dehydration tank is rotatable with the soil discharge door side facing downward, the dehydrated soil can be quickly and automatically discharged from the dehydration tank.

更に、ストレーナー管を内外二重の多孔管とし、その内
外の多孔管の間に目の細かい透水材を挿脱自在に装填す
ることにより、目詰まりを少なくし、目詰まりを生じた
場合において内部から容易に透水材を洗浄でき、また容
易に透水材を交換することができる。
In addition, the strainer tube is a double perforated pipe inside and outside, and by inserting a fine water-permeable material between the inner and outer perforated pipes so that it can be inserted and removed freely, clogging is reduced, and when clogging occurs, internal Therefore, the water-permeable material can be easily washed, and the water-permeable material can be easily replaced.

【図面の簡単な説明】[Brief description of drawings]

第1図はこの発明の脱水装置による脱水工程の一例を示
す斜視図、第2図はこの発明の脱水装置の他の態様を示
す側面図、第3図はこの発明の脱水装置による脱水工程
を示す側面図、第4図は同平面図、第5図はこの発明に
係る気密函体の縦断面図、第6図はこの発明に係るスト
レーナー管の横断面図、第7図は縦断側面図である。 1……ベース、2……振動機、3……振動台、4……脱
水槽、5……排土扉、6……気密函体、7……固定台、
7′……移動車輛、8……運搬圧入機、9……ストレー
ナー管、9a……多孔内管、9b……多孔外管、10……透水
材、11……真空ポンプ、12……バキュームホース、12′
……吸水枝管、13……開閉弁、14……継手管、S……脱
水処理土。
FIG. 1 is a perspective view showing an example of a dehydration process by the dehydrator of the present invention, FIG. 2 is a side view showing another embodiment of the dehydrator of the present invention, and FIG. 3 is a dehydration process by the dehydrator of the present invention. FIG. 4 is a side view showing the same, FIG. 4 is a plan view of the same, FIG. 5 is a longitudinal sectional view of an airtight box according to the present invention, FIG. 6 is a lateral sectional view of a strainer tube according to the present invention, and FIG. Is. 1 ... base, 2 ... vibrator, 3 ... vibration table, 4 ... dewatering tank, 5 ... soil door, 6 ... airtight box, 7 ... fixed stand,
7 '... moving vehicle, 8 ... transport press-fitting machine, 9 ... strainer tube, 9a ... perforated inner tube, 9b ... perforated outer tube, 10 ... permeable material, 11 ... vacuum pump, 12 ... vacuum Hose, 12 ′
…… Water absorption branch pipe, 13 …… Open / close valve, 14 …… Joint pipe, S …… Dehydration treated soil.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】脱水槽内に投入した高含水土中に、上下動
及び横移動自在な運搬圧入機に取付けた気密函体をその
下部開口を下向きにして貫入すると共に、前記気密函体
の内部に下向きに突設した複数本のストレーナー管を貫
入し、前記高含水土に振動を与えて水分を滲出させ、こ
の水分を前記ストレーナー管により真空吸引して外部に
排出することを特徴とする高含水土の脱水方法。
1. An airtight box attached to a vertically movable and laterally movable transport press-fitting machine is inserted into a high-moisture content soil placed in a dehydration tank with its lower opening facing downward, and at the same time, It is characterized in that a plurality of strainer pipes protruding downward are penetrated into the inside, vibration is applied to the high water content soil to exude water, and the water is vacuum suctioned by the strainer pipe and discharged to the outside. Dehydration method of high hydrous soil.
【請求項2】振動機により振動自在に設置された脱水槽
と、上下動及び横移動自在な運搬圧入機に取付けた下部
が開口した気密函体と、前記気密函体の内部に下部きに
突設され、真空ポンプにより真空吸引可能な複数本のス
トレーナー管とからなることを特徴とする高含水土の脱
水装置。
2. A dehydration tank oscillated by a vibrating machine, an airtight box having a lower opening attached to a carrier press-fitting machine that can be moved vertically and horizontally, and a lower box inside the airtight box. A dehydrating device for high hydrous soil, comprising: a plurality of strainer tubes that are provided so as to project and can be vacuumed by a vacuum pump.
【請求項3】脱水槽の周壁の一部に開閉自在な排土扉を
設け、この脱水槽を前記排土扉側を下向きにして回動自
在としてなることを特徴とする請求項2記載の高含水土
の脱水装置。
3. A drainage door which is openable and closable is provided on a part of the peripheral wall of the dehydration tank, and the dehydration tank is rotatable with the discharge door side facing downward. Dehydrator for high hydrous soil.
【請求項4】ストレーナー管を内外二重の多孔管とし、
その内外の多孔管の間に目の細かい透水材を挿脱自在に
装填してなることを特徴とする請求項2記載の高含水土
の脱水装置。
4. The strainer tube is a double porous tube having inner and outer sides,
3. A dehydrating device for highly hydrous soil according to claim 2, wherein a fine water-permeable material is removably loaded between the inner and outer porous tubes.
JP63178343A 1988-07-18 1988-07-18 Method and apparatus for dehydration of high hydrous soil Expired - Lifetime JPH0783879B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63178343A JPH0783879B2 (en) 1988-07-18 1988-07-18 Method and apparatus for dehydration of high hydrous soil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63178343A JPH0783879B2 (en) 1988-07-18 1988-07-18 Method and apparatus for dehydration of high hydrous soil

Publications (2)

Publication Number Publication Date
JPH0226699A JPH0226699A (en) 1990-01-29
JPH0783879B2 true JPH0783879B2 (en) 1995-09-13

Family

ID=16046838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63178343A Expired - Lifetime JPH0783879B2 (en) 1988-07-18 1988-07-18 Method and apparatus for dehydration of high hydrous soil

Country Status (1)

Country Link
JP (1) JPH0783879B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5887637B2 (en) * 2012-04-23 2016-03-16 鹿島建設株式会社 Reduction method of hydrous soil
JP6297415B2 (en) * 2014-05-29 2018-03-20 一般社団法人グリーンディール推進協会 Muddy water treatment system and muddy water treatment method
WO2017187714A1 (en) * 2016-04-28 2017-11-02 株式会社アサヒテクノ Mobile mud dewatering device and mud dewatering method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5854208B2 (en) * 1977-12-14 1983-12-03 日立造船株式会社 Sludge treatment method
JPS6250514A (en) * 1986-08-01 1987-03-05 Ohbayashigumi Ltd Treatment of residual excavated soil in mud-water construction work

Also Published As

Publication number Publication date
JPH0226699A (en) 1990-01-29

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