JP3493209B2 - Drilling mud treatment method - Google Patents
Drilling mud treatment methodInfo
- Publication number
- JP3493209B2 JP3493209B2 JP15989893A JP15989893A JP3493209B2 JP 3493209 B2 JP3493209 B2 JP 3493209B2 JP 15989893 A JP15989893 A JP 15989893A JP 15989893 A JP15989893 A JP 15989893A JP 3493209 B2 JP3493209 B2 JP 3493209B2
- Authority
- JP
- Japan
- Prior art keywords
- mud
- muddy water
- excavation
- tank
- water
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 25
- 238000005553 drilling Methods 0.000 title description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 91
- 238000009412 basement excavation Methods 0.000 claims description 38
- 239000004576 sand Substances 0.000 claims description 25
- 239000013049 sediment Substances 0.000 claims description 25
- 239000010419 fine particle Substances 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 18
- 230000018044 dehydration Effects 0.000 claims description 17
- 238000006297 dehydration reaction Methods 0.000 claims description 17
- 230000005484 gravity Effects 0.000 claims description 17
- 238000000926 separation method Methods 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 8
- 239000000440 bentonite Substances 0.000 claims description 6
- 229910000278 bentonite Inorganic materials 0.000 claims description 6
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000002562 thickening agent Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- 230000006872 improvement Effects 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- -1 silt Substances 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims 1
- 238000005191 phase separation Methods 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 28
- 239000001569 carbon dioxide Substances 0.000 description 14
- 229910002092 carbon dioxide Inorganic materials 0.000 description 14
- 239000002699 waste material Substances 0.000 description 14
- 239000002689 soil Substances 0.000 description 13
- 230000008569 process Effects 0.000 description 10
- 239000010802 sludge Substances 0.000 description 9
- 238000004064 recycling Methods 0.000 description 7
- 230000003247 decreasing effect Effects 0.000 description 6
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 6
- 238000004062 sedimentation Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001879 gelation Methods 0.000 description 3
- 238000010169 landfilling Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000003895 groundwater pollution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
- Processing Of Solid Wastes (AREA)
- Cyclones (AREA)
- Treatment Of Sludge (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は現場打ち造成杭、連壁工
法における地盤掘削に使用し発生した泥水、汚泥、掘削
土の処理における分級、脱水、浄化、廃棄物処理あるい
は調整、リサイクル等に適した方法に関する。BACKGROUND OF THE INVENTION The present invention is applicable to classification, dewatering, purification, waste treatment or adjustment, recycling, etc. in the treatment of muddy water, sludge, and excavated soil generated during ground excavation in the site pile construction and wall construction method. about the appropriate way.
【０００２】[0002]
【従来の技術】従来、泥粒子を懸濁した泥水を使用しつ
つ掘削する掘削工事から排出される大量の土砂を含有す
る泥水を脱水処理し、リサイクルする低コスト、簡易な
処理法が無かった。掘削工事現場での泥水からの土砂分
離は沈降槽が主体で、時に単段のサイクロンを利用する
が必ずしも完全なものでなく、掘削条件規格から外れた
泥水あるいは安定化泥水は系から排出して廃棄し、新た
に調製されていた。従って大量の汚泥、廃棄土砂発生の
原因になっていた。この処理のためには、従来の瀘過脱
水や排水処理、環境浄化では単なる分離だけでなく、分
離した排水、排気処理を必要とする。2. Description of the Related Art Conventionally, there has been no low-cost, simple treatment method for dehydrating and recycling mud water containing a large amount of earth and sand discharged from excavation work in which mud water in which mud particles are suspended is used for excavation. . Sedimentation from mud at the excavation site mainly uses a sedimentation tank, and sometimes uses a single-stage cyclone, but it is not always perfect, and mud or stabilized mud that does not meet the drilling condition standards is discharged from the system. Discarded and freshly prepared. Therefore, it caused a large amount of sludge and waste soil. For this treatment, conventional filtration and dehydration, wastewater treatment, and environmental purification require not only simple separation but also separate wastewater and exhaust treatment.
【０００３】従来の脱水設備は高価で処理費が高くつく
ので、水を含む大量の土砂、汚泥等は裸の地盤の上に堆
積して浸透脱水したり、セメント固化等によって処理す
るのが普通であった。前者は地下水汚染の原因となるの
で継続大量処理には適しない。後者は廃棄物増量にな
る。近年棄場や埋立地がなくなってきたのでその対策と
して汚泥を脱水後、工事用埋め戻し材として使用するこ
とが検討されているが、問題解決のために従来利用され
ている装置、工程の多くは化学工業に使用されてきた濾
過、脱水機器の型、操作条件をそのまま利用することが
多く、設備費、動力費、運転費等がかかるのが難点であ
った。Since conventional dehydration equipment is expensive and expensive to process, it is common to deposit a large amount of water-containing soil, sludge, etc. on bare soil for permeation and dehydration, or for cement solidification. Met. The former causes groundwater pollution and is not suitable for continuous mass treatment. The latter increases the amount of waste. Since abandonment sites and landfills have disappeared in recent years, it is considered to use it as a backfill material for construction after dewatering sludge as a countermeasure, but many of the equipment and processes that have been conventionally used to solve problems In many cases, the types and operating conditions of filtration and dehydration equipment used in the chemical industry are used as they are, and it is difficult to incur equipment costs, power costs, operating costs, and the like.
【０００４】輸送まで含むシステムとしての総合コスト
を下げる試みもなかった。掘削用泥水、安定化泥水の処
理におぃて、砂分が多い地盤の掘削で砂混入が多ぃ場合
にはサイクロン付の脱水篩を使用する方法があるが、効
果が安定せず、新たな解決法が必要であった。There has been no attempt to reduce the total cost of the system including transportation. In the treatment of drilling mud and stabilized mud, if there is much sand in the ground with a large amount of sand, there is a method of using a dewatering sieve with a cyclone, but the effect is not stable, A different solution was needed.
【０００５】炭酸ガス処理した安定化泥水の輸送、使用
の例はなく、輸送中の振動、輸送距離等未知、未解決の
問題があった。There is no example of transportation or use of stabilized mud water treated with carbon dioxide gas, and there are unsolved problems such as vibration during transportation, transportation distance, etc.
【０００６】[0006]
【発明が解決しようとする課題】泥土、泥水を処理する
場合、脱水工程がコストが障害になっている例が多い。
ゲル化した建設汚泥のリサイクルが行われた例はなく、
規格外の使用済泥水の他現場への利用の例は勿論なく、
したがってその問題点を発見し、解決方法を確立する必
要があった。従来は処理困難なものを、一括処理、廃棄
しようとして解決を困難にしていた。 研究の結果、泥
水または泥土中の比較的微粒子を分離して別に処理する
と脱水が容易になり従来のように遠心分離、圧濾過のよ
うに高価な装置を使用しなくても、簡単な水きり処理ま
たは簡単な脱水で埋め戻し用に使用できる土砂とリサイ
クル可能な泥水を得ることを、発明者らのさきの特開平
６−１８２１８５号公報、特開平６−２０１５６２号公
報等で提案している。In the case of treating mud and muddy water, there are many cases in which the cost of the dehydration process is an obstacle.
There is no example of recycling gelled construction sludge,
Of course, there are no examples of non-standard used mud used in other fields,
Therefore, it was necessary to discover the problem and establish a solution. Conventionally, it has been difficult to solve the problems by trying to collectively process and discard those that are difficult to process. As a result of research, separation of comparatively fine particles in muddy water or mud and separate treatment facilitates dehydration, and simple water removal treatment without using expensive equipment such as centrifugation and pressure filtration as in the past. Alternatively, to obtain earth and sand that can be used for backfilling and muddy water that can be recycled by simple dewatering, it is disclosed in
6-182185, JP-A-6-201562
Proposed in news reports .
【０００７】本発明はこれらの技術を利用してさらに新
たな知見を加え、分別処理して泥水を再生し、簡易に土
砂を脱水し、得られた掘削用泥水は、分離した土砂分を
簡易に脱水すること、土砂分を埋立て等に利用する場合
に含水率を調整して流動性を維持し、埋立て、埋戻し
後、脱水でき、埋立てに容易に使用することを目的とす
るもので、必要により土壌浄化作業をも同時に行うこと
もでき、または在来法と組合せて、低コスト、高能率、
低動力消費で土砂の脱水処理やリサイクル系を構成して
有効利用することを目的とし、しかも長期の繰返しリサ
イクル使用による、品質の変化を防止する必要があっ
た。The present invention adds new knowledge by utilizing these techniques, regenerates muddy water by separating treatment, and easily dewaters earth and sand. The obtained mud water for excavation can easily separate separated earth and sand components. It is intended to be used for landfilling after being dehydrated, and when the soil content is used for landfilling, the water content can be adjusted to maintain fluidity and can be dehydrated after landfilling and backfilling. If necessary, soil purification work can be performed at the same time, or in combination with conventional methods, low cost, high efficiency,
It was necessary to prevent the change in quality due to the long-term repeated recycle use for the purpose of constructing and effectively utilizing the dewatering process of sand and sand and the recycling system with low power consumption.
【０００８】[0008]
【課題を解決するための手段】本発明の掘削用泥水処理
方法は、掘削工事で発生し、土砂成分を含む泥水または
泥を工事場所の貯蔵槽を兼ねた処理設備から輸送手段で
処理貯蔵設備まで輸送し、処理貯蔵設備によって泥水
と、微粒子含有量を減じた土砂分とに分離し、含有土砂
分を分離した泥水は新しい掘削操作に使用し、土砂は元
のまたは別の掘削工事の埋め戻し用土砂または建設用土
砂あるいは農地改良用として使用する泥水系処理におい
て、
(1) 炭酸ガスを流動する泥水に加えつつまたは加えた
後、剪断力をかけつつ粒子分離をすること、
(2) 微粒子を液体サイクロンによって分別しサイクロン
下に得た土砂分をさらに皿状物または槽中を通過または
滞留させ泥水と分離して水きり機能を有する置場に堆積
し脱水すること、
(3) 土砂分を分離した泥水を槽に貯蔵し槽内に連続また
は間歇的循環流れを与えることを具備している。The method for treating mud water for excavation according to the present invention is a treatment and storage facility for treating mud or mud generated by excavation work and containing sediment components from a treatment facility also serving as a storage tank at a construction site by a transportation means. Transported to a processing and storage facility to separate muddy water and sediment with reduced particulate content, the mud with separated sediment is used for new drilling operations, and the sediment is used to fill the original or another excavation work. in mud system process to be used as soil or for construction sand or land improvement for return, (1) after or added while applying the mud to the dynamic flow the carbonate gas, to a particle separation while applying a shearing force, ( 2) Separation of fine particles by a liquid cyclone, and sediment content obtained under the cyclone is further passed through or retained in a dish or tank to separate it from muddy water and deposit it in a place with a drainage function for dehydration, (3) Sediment Minutes To release the mud was stored in a bath tank are provided to give continuous or intermittent circulation flow.
【０００９】[0009]
【作用】
本発明の処理法は、液体サイクロンと炭酸ガス
処理、沈降あるいは貯蔵槽の併用によって殆どあらゆる
建設、土木から発生する廃棄泥または泥水の処理、精
製、調整、および発生する泥水、土砂の脱水、浄化処理
を低コストで実現することに成功した。生成物は掘削土
から混入する有害物がなければ、処理によって有害物が
発生することなく、実質的に全量再利用できるものであ
る。これを実際に再利用するために複数の掘削現場と処
理基地あるいは規模の大きい現場における複数の掘削機
の泥水処理を輸送システムによって総合的に結合して物
質の授受を行い、廃棄物を最小にして処理条件、装置、
泥水中の微粒子条件の調節、改善、比重等の規格制御を
行う。微粒子と粗粒子分離と撹拌中和反応装置としての
液体サイクロンを含む工程と調整（または処理済）泥水
の単数または複数の貯蔵基地の設置によって問題が解決
できた。 [Action] treatment method of the present invention, a hydrocyclone and carbon dioxide treatment, almost all built by sedimentation or in combination of storage tank, the processing of waste mud or mud generated from civil engineering, purification, adjustment, and mud generated, sediment We succeeded in realizing dehydration and purification treatment at low cost. As long as there is no harmful substance mixed in from the excavated soil, the product can be reused substantially in its entirety without any harmful substance being generated by the treatment. In order to actually reuse it, the muddy water treatment of multiple excavation sites and treatment stations or multiple excavators at large-scale sites is comprehensively combined by a transportation system to transfer substances and minimize waste. Processing conditions, equipment,
Adjust and improve the conditions of fine particles in muddy water, and perform standard control such as specific gravity. Separation of fines and coarses and installation of a process and / or storage of prepared (or treated) mud with a hydrocyclone as a stirred neutralization reactor solved the problem.
【００１０】また、従来は処理困難であった理由の一つ
であった掘削に使用する泥水、安定化泥水中の砂、シル
トの分離の場合、屡々不規則な濃度変動が問題であっ
た。これらを振動篩、液体サイクロン、沈降槽、脱水
篩、微粒子を分離した土砂、シルトの貯蔵機能、微粒子
除去機能、微粒子の濃縮貯蔵機能、その泥水への還元機
能の全部またはそれらから選ばれた機能の重畳組合せに
よって可能にする。これは系としては掘削現場と処理貯
蔵基地を重畳させることによって障害の回避が可能にな
ったものである。その主体になるものはリサイクルまた
は脱水の障害になる微粒子除去あるいは濃度、比重の調
整機能と輸送、貯蔵機能である。比重、粘性、濾過性、
導電率等の特性を処理装置自身、輸送手段または現場装
置で掘削の規格、現場状況に適合し易いように調整し、
または出荷時および掘削現場で調整可能にすることによ
って大幅な融通性を確保するもので、このような発想は
近代の一定水準の原料を使用して一定規格の工業製品を
出荷するやり方からは出て来ないものである。すなわち
多様な掘削現場からの多様な排出物を比較的簡単な工程
で処理してさらに多様な要求を持つ掘削現場の要求に多
数の現場を総合した系として適合することに本発明の特
徴がある。Further, in the case of separating muddy water used for excavation, sand in stabilized mud water, and silt, which has been one of the reasons why treatment has been difficult in the past, an irregular fluctuation in concentration was often a problem. These are all or a selected function of vibrating screen, hydrocyclone, settling tank, dewatering screen, earth and sand from which fine particles are separated, silt storage function, fine particle removal function, fine particle concentration and storage function, its reduction function to muddy water. This is made possible by the combination of overlapping. This is a system in which the obstacle can be avoided by overlapping the excavation site and the processing storage base. Its main functions are the function of removing fine particles, which is an obstacle to recycling or dehydration, and the function of adjusting the concentration and specific gravity, and the function of transportation and storage. Specific gravity, viscosity, filterability,
Adjust the characteristics such as conductivity to the processing equipment itself, transportation means or on-site equipment so that it can be easily adapted to excavation standards and on-site conditions.
It also allows for greater flexibility by being adjustable at the time of shipment and at the drilling site, and this idea is out of the way of shipping standard industrial products using modern standards of raw materials. It does not come. In other words, the feature of the present invention is that various emissions from various excavation sites are processed in a relatively simple process to meet the requirements of excavation sites with more diverse requirements as a system that integrates multiple sites. .
【００１１】本発明は、このために、例えば入り口高濃
度では２段以上にサイクロンを通過し、または２段と同
等の能力を持つ軸流サイクロン作用に付加された本発明
によるサイクロンを使用できる。必要時には入り口低濃
度の時並列に使用して１段にすると同一サイクロン数で
は処理能力が増加し、動力は節約できる。この操作は出
口比重により自動または手動で切り替えできる。サイク
ロンの１段は単数または複数のサイクロンの組合せであ
ってよい。１つの組合せは直径の異なるものを含んでい
てよい。シルト含量を制御して、比重を所定値に保持す
るために、シルト分離用の比較的小径のサイクロンを併
用するのがエネルギー節約の見地から有利であり、主流
と別にポンプ、小径サイクロンを設けて常時または必要
時使用するか、主流のポンプを利用して、小径のサイク
ロンを比較的大径のサイクロンに並列に連結し、常時ま
たは必要に応じて使用することができる。同一処理量を
得るためには小型小径のサイクロンはより多数を要し、
設備費は比較的高く、動力費は比較的安くなる。小型遠
心ポンプは所要の入り口圧を得難いので大型ポンプの分
岐流を利用するのが簡単である。また動力節約のために
微粒子分離に特開平６−１１４２９４号公報の図３に記
載のような流動装置を利用することができる。For this purpose, the present invention can use, for example, a cyclone according to the present invention which passes through a cyclone in two or more stages at high inlet concentration, or which is added to the axial flow cyclone action having the same ability as two stages. If necessary, if used at a low concentration at the entrance and used in parallel to make one stage, the processing capacity will increase with the same number of cyclones, and power can be saved. This operation can be switched automatically or manually depending on the outlet specific gravity. One stage of the cyclone may be a single or a combination of cyclones. One combination may include those with different diameters. In order to control the silt content and maintain the specific gravity at a specified value, it is advantageous to use a cyclone with a relatively small diameter for silt separation together from the viewpoint of energy saving.Providing a pump and a small diameter cyclone separately from the mainstream. It can be used all the time or when needed, or by using a mainstream pump, a small-diameter cyclone can be connected in parallel to a relatively large-diameter cyclone and used either constantly or as needed. In order to obtain the same throughput, more small and small cyclones are required,
Equipment costs are relatively high and power costs are relatively low. Since it is difficult for a small centrifugal pump to obtain the required inlet pressure, it is easy to use the branch flow of a large pump. Further, in order to save power, a fluidizing device as shown in FIG. 3 of JP-A-6-114294 can be used for separating fine particles.
【００１２】再利用する泥水の特性例えば比重は処理
後、処理貯蔵設備においては、追加の調整余地のある性
状にするのが好ましい。これは複数の掘削現場におい
て、必要とされる泥水の性状が多様であるからである。
この点も従来リサイクルが行われ難かった一つの原因で
あると考えられた。後でベントナイトや安定剤、分散剤
を添加し、必要な性状に調整できる。これは多数の実験
で得た新しい知見であって、これにより多数の新しい掘
削現場にリサイクル泥水を輸送し利用することが可能に
なったのである。再使用可能の証明は例えば掘削壁の超
音波測定によってなされた。掘削壁状況、超音波の泥水
中の適当な透過造影状況の観察と記録により、従来法の
調合新泥水と再生した調整泥水は掘削条件とも同様であ
った。逆に本発明による泥水の供給制御系が最近の超音
波等による測定を利用した掘削制御を可能ならしめるも
のである。さもなければ、このような測定による掘削の
監視、制御は膨大な量の廃棄物を発生することになるで
あろう。[0012] It is preferable that the characteristics of the muddy water to be reused, such as the specific gravity, after the treatment have a property with additional room for adjustment in the treatment storage facility. This is because the required properties of mud water are diverse at multiple excavation sites.
This point was also considered to be one of the reasons why it was difficult to recycle conventionally. After that, bentonite, a stabilizer, and a dispersant can be added to adjust the properties required. This is a new finding obtained from many experiments, which has made it possible to transport and utilize recycled mud in many new drilling sites. Proof of reusability was made, for example, by ultrasonic measurements on the excavation wall. By observing and recording the conditions of the excavation wall and the appropriate transmission contrast conditions in the muddy water using ultrasonic waves, the prepared new muddy water of the conventional method and the regenerated muddy water were similar to the drilling conditions. On the contrary, the mud supply control system according to the present invention enables the excavation control utilizing the recent measurement using ultrasonic waves or the like. Otherwise, monitoring and controlling excavation with such measurements would generate enormous amounts of waste.
【００１３】泥水の繰返し利用による品質の劣化防止
は、返送泥水から土砂を極力除去することにより達成さ
れる。必要により、特に夏期には貯蔵泥水の循環、曝気
による微生物分解、腐敗の防止、プランクトン等微生物
の増殖を抑制できる。これらは重要な知見である。泥水
循環の阻害物あるいは老廃物の蓄積障害がない理由は、
泥水と分離土砂の間に不純物、老廃物の吸着分配の疑似
平衡が成立しているものと考えられ、土砂分離によっ
て、蓄積する筈の泥水劣化成分が系外に必要な割合で継
続して排出されることによると考えられる。微生物その
他による有機物の分解や発生はこのような平衡関係によ
る浄化除去作用を阻害するからである。また別に掘削現
場では地盤へ泥水が少量ずつ排出されるので、これも蓄
積防止平衡に寄与している。従来このようなことが考慮
されず、従って多数回循環するにたる品質の泥水品質の
維持がなされたことがなかったと思われる。好ましい状
態を維持する処理は処理によって得られる処理泥水中の
砂分（日本基礎建設協会の安定液管理指針の試験法によ
る粒径が７４ミクロン以上のもの）３％以下特に０．５
〜１％以下にすることによって、達成される。一方本発
明による炭酸ガス処理は液体サイクロンとの併用によっ
て容易にこの基準を達成し、他の薬剤と異なり溶解分は
衛生上全く無害で、その化合物の地盤への漏出による地
下水汚染がないので掘削における損失を見込んでよい利
点がある。このようにして水、泥水を実質的に廃棄する
ことなく殆ど完全にリサイクル使用できる。The prevention of quality deterioration due to repeated use of muddy water is achieved by removing the earth and sand from the returned muddy water as much as possible. If necessary, especially in summer, circulation of stored mud, microbial decomposition by aeration, prevention of spoilage, and growth of plankton and other microorganisms can be suppressed. These are important findings. The reason why there is no obstruction of muddy water circulation or accumulation of waste products is
It is considered that a pseudo equilibrium of the adsorption and distribution of impurities and wastes is established between the muddy water and the separated sediment, and due to the sediment separation, the muddy water deterioration components that should accumulate will be continuously discharged to the outside of the system at the required ratio. It is thought that it depends on what is done. This is because the decomposition and generation of organic substances by microorganisms and others hinders the purifying and removing action due to such an equilibrium relationship. Separately, small amounts of muddy water are discharged to the ground at the excavation site, which also contributes to the accumulation prevention equilibrium. In the past, this was not taken into consideration, and therefore it is considered that the quality of mud water, which is sufficient to circulate many times, has never been maintained. The treatment for maintaining the preferable condition is the sand content in the treated mud water obtained by the treatment (having a particle size of 74 microns or more according to the test method of the stable liquid management guidelines of the Japan Foundation Construction Association) 3% or less, especially 0.5.
It is achieved by setting the content to ˜1% or less. On the other hand, the carbon dioxide treatment according to the present invention easily achieves this standard when used in combination with a hydrocyclone, and unlike other chemicals, dissolved components are completely harmless in terms of hygiene, and there is no groundwater contamination due to leakage of the compound to the ground. There is a good advantage to allow for the loss in. In this way, water and muddy water can be recycled almost completely without being discarded.
【００１４】[0014]
【実施例１】図１は本発明による泥水処理に適した装置
である。 現場打ちセメント杭のアースドリル工法にお
ける安定化泥水はベントナイト微粒子、粘性成分である
ＣＭＣ等を含み、そのままでは濾過脱水の場合、濾材の
目詰まりが激しく運転中に含まれてくる土砂、シルトの
分離が困難なものである。しかしベントナイト成分およ
び微粒子を本発明により水側に分離することによって、
残存水分の脱水が容易になり、簡易な堆積脱水か、時に
必要により簡単な真空脱水で充分になった。脱水設備が
ない時でも固化剤の使用は必ずしも必要とせず従って固
化剤による無駄な増量がなくなった。なお、本処理装置
に低速または高速の遠心分離機を併用して微粒子分離し
ても差し支えないことは当然である。EXAMPLE 1 FIG. 1 shows an apparatus suitable for treating mud water according to the present invention. Stabilized mud in the earth drilling method for cast-in-place cement piles contains bentonite fine particles and CMC, which is a viscous component. If filtration and dehydration is performed as it is, separation of earth and sand and silt contained during operation due to severe filter material clogging. Is difficult. However, by separating the bentonite component and the fine particles on the water side according to the present invention,
Dehydration of residual water became easy, and simple deposition dehydration or sometimes simple vacuum dehydration was sufficient if necessary. Even when there is no dehydration equipment, the use of the solidifying agent is not always necessary, and therefore the wasteful increase in the amount by the solidifying agent is eliminated. It should be understood that fine particles may be separated by using a low-speed or high-speed centrifuge together with this processing apparatus.
【００１５】図１において、掘削穴１０１から注入コン
クリートと置換して排出された泥水は現場の処理装置１
０２に入り、廃棄泥水または廃泥あるいは沈降含水土砂
は輸送手段たとえばタンク車、バキューム車、配管１０
３によって貯蔵処理基地に輸送され、粗泥水貯槽４８に
はいりスラリーポンプ等で分配器１から振動篩２上に供
給され、小石や雑物を分離され、槽４に入る。土砂は槽
底に沈降し、泥水との界面に浮子２９を追随させセンサ
ー９によって検出して弁あるいはゲート６を操作装置７
により新規または慣用手段で調節して脱水篩１１に供給
する。沈降物の流動性は振動によって補助することがで
きる。In FIG. 1, the muddy water discharged from the excavation hole 101 by substituting for the poured concrete is treated at the site 1
02, waste mud or waste mud or settling hydrous sediment is transported by means such as tank trucks, vacuum trucks, pipes 10.
3 is transported to the storage processing base, is supplied to the coarse muddy water storage tank 48 from the distributor 1 on the vibrating screen 2 by means of a slurry slurry pump, etc., separates pebbles and foreign matters, and enters the tank 4. The sediment settles to the bottom of the tank, and the float 29 is made to follow the interface with the muddy water and detected by the sensor 9 to operate the valve or gate 6 with the operating device 7.
Is supplied to the dewatering sieve 11 by a new or conventional means. The fluidity of the sediment can be assisted by vibration.
【００１６】溢流泥水は溢流口５から槽３０の仕切り３
１と３２の間に落下し、傾斜板仕切りを通過して泥水層
２０と沈降泥層２１に分離する。脱水篩を通過した泥水
はなお土砂を含み、沈降部で泥水層１６と沈降土砂１７
に分離し、沈降層１７、２１と合してポンプ３４によっ
て、配管１２によって脱水篩１１に直接供給するか、配
管１３を経てサイクロン１４により濃縮し脱水篩１１に
供給する。１４の上流は土砂分を含み易く泥水層２０に
入れる。The overflow mud is separated from the overflow port 5 by the partition 3 of the tank 30.
It falls between 1 and 32, passes through the inclined plate partition, and is separated into a muddy water layer 20 and a sedimented mud layer 21. The muddy water that has passed through the dewatering sieve still contains earth and sand, and the muddy water layer 16 and the sediment 17
And is supplied to the dehydrating sieve 11 through the pipe 12 directly by the pump 34 in combination with the sedimentation layers 17 and 21, or concentrated and supplied to the dehydrating sieve 11 through the cyclone 14 through the pipe 13. The upstream of 14 is likely to contain sediment and is put in the muddy water layer 20.
【００１７】泥水層１６、２０はポンプ１８でサイクロ
ン１９に送り比較的小径または小粒子分離条件で分離し
濃縮泥は脱水篩１１に供給する。サイクロン１９の上口
流は比重あるいは成分によって沈降層３５に入れ、また
は次の貯槽に送る。沈降層２３はポンプ２５でサイクロ
ン２４に供給し、濃縮脱水操作するか、別の分離装置へ
送る。ポンプ２６は泥水層３５の泥水をサイクロン２７
に送り、粗粒子を分離して貯槽に送る。弁３６から全量
または部分的に直送して比重調整できる。このバイパス
３６の調整によってサイクロン２７の分離性能調節が可
能になる。同様の調節は他のサイクロンについても可能
である。The muddy water layers 16 and 20 are sent to a cyclone 19 by a pump 18 and separated under relatively small diameter or small particle separation conditions, and the concentrated mud is supplied to the dehydrating sieve 11. The upper stream of the cyclone 19 is put into the sedimentation layer 35 or sent to the next storage tank depending on the specific gravity or components. The settling layer 23 is supplied to the cyclone 24 by the pump 25, and concentrated or dehydrated, or sent to another separation device. The pump 26 cyclone 27 the muddy water of the muddy layer 35.
To separate coarse particles into a storage tank. The specific gravity can be adjusted by directly or partially sending directly from the valve 36. By adjusting the bypass 36, the separation performance of the cyclone 27 can be adjusted. Similar adjustments are possible for other cyclones.
【００１８】ポンプ３４の直送系１２は槽４に戻しても
良いし、槽４と同様の別槽を追加してもよい。動力節約
と機器摩耗防止に有用である。本発明は複数サイクロン
を分離性能の異なる諸元または条件で操作し、複数の流
路に特徴がある。各沈降槽には傾斜板を挿入できる。こ
の傾斜板には堆積固着防止のため振動を加えるのが適当
であり、振動は弱いものでもよい。また、泥水流の衝突
によっても振動を発生できる。脱水篩１１への濃縮泥ま
たは土砂供給位置、構造は試験によって任意に選択でき
る。２２は底板、沈降傾斜板上の粒子移動用、堆積防止
用振動機構である。The direct delivery system 12 of the pump 34 may be returned to the tank 4, or a separate tank similar to the tank 4 may be added. It is useful for saving power and preventing equipment wear. The present invention operates a plurality of cyclones under different specifications or conditions having different separation performances, and is characterized by a plurality of flow paths. An inclined plate can be inserted into each settling tank. It is appropriate to apply vibration to this inclined plate in order to prevent deposition and fixation, and vibration may be weak. Vibration can also be generated by collision of a muddy water flow. The concentration mud or sediment supply position and structure to the dewatering sieve 11 can be arbitrarily selected by a test. Reference numeral 22 is a vibration mechanism for moving particles on the bottom plate and the settling inclined plate and for preventing deposition.
【００１９】比較的高いｐＨ、高い比重で流動性が悪い
泥は炭酸ガス吹き込み装置３８またはノズル３９からの
炭酸ガスによりｐＨ８−９．５程度に調節して、分離効
果を上げ、測定、操作も容易になった。比重低下も改善
できた。For mud having a relatively high pH, a high specific gravity and poor fluidity, the carbon dioxide blowing device 38 or the carbon dioxide from the nozzle 39 adjusts the pH to about 8 to 9.5 to enhance the separation effect, and the measurement and operation are also possible. It became easier. The decrease in specific gravity was also improved.
【００２０】処理された泥水はポンプ４４と槽底に向け
水平ないし斜めに泥水を吹き出し沈降防止を兼ねて撹拌
する分散管４５を有し複数であり得る貯槽または調整槽
４３に貯蔵し、主として比重を調整して直接または撹拌
機４２を有する調整槽４１を経て輸送手段４６によって
現場１０１に返送し、または他の現場の貯層１０５に送
る。土砂３または５３も同様掘削現場に返送するか他の
埋立て等に使用する。The treated muddy water is stored in a plurality of storage tanks or adjusting tanks 43 having a pump 44 and a dispersion pipe 45 that horizontally or obliquely blows the muddy water toward the bottom of the tank and stirs for the purpose of preventing sedimentation. Is directly adjusted or returned to the site 101 by the transportation means 46 via the adjusting tank 41 having the agitator 42, or sent to the reservoir 105 at another site. The earth and sand 3 or 53 are also returned to the excavation site or used for other land reclamation.
【００２１】微粒子の含有量は液体サイクロン１４、１
９、２４、２７の径、数、組合せ、繰返し処理、運用に
より比重を任意に調整することができる。微粒子含有量
が多い排泥水処理において比重を１．０７程度以下にす
る場合には、アースドリル工法等に使用するカルボキシ
メチルセルローズ系その他の増粘剤あるいは分散剤、腐
食土質、カルシウム分等が含まれているにかかわらず液
体サイクロンの下流に７４〜４５ミクロン以下の微粒子
を分離できる。この微粒子泥は泥水中あるいは含水状態
で槽４０に保存することができ、槽攪拌によって水ある
いは泥水中に撹拌によって必要により増粘剤を加えて再
分散可能であった。The content of fine particles is hydrocyclone 14, 1
The specific gravity can be arbitrarily adjusted by the diameter, the number, the combination, the repeated processing, and the operation of 9, 24, and 27. When the specific gravity is set to about 1.07 or less in the treatment of wastewater containing a large amount of fine particles, carboxymethyl cellulose-based other thickeners or dispersants used in the earth drill method, corrosive soil, calcium content, etc. are included. Regardless of the type, fine particles of 74 to 45 microns or less can be separated downstream of the hydrocyclone. This fine particle mud could be stored in the tank 40 in the mud water or in the water-containing state, and could be redispersed by adding a thickener to the water or the mud water by stirring if necessary.
【００２２】これは保存中、必要時間毎に撹拌機構４
２、４５で撹拌することにより分散性を保持することが
できる。微粒ベントナイトあるいは増粘剤の添加により
安定性を増すことができる。This is a stirring mechanism 4 at every required time during storage.
Dispersibility can be maintained by stirring at 2, 45. Stability can be increased by the addition of finely divided bentonite or thickeners.
【００２３】炭酸ガス添加と、剪断力実現は径２００ｍ
ｍ以下の標準サイクロンと、標準操作条件でなされ、吹
き込み圧０．５〜２ｋｇ／ｃｍ2適当であった。ｐＨは
１０．４が、サイクロン通過後 ９．７と低下し、炭酸
ガス量を増加すると容易に８．２程度まで低下し、定量
的反応であった。ゲル化傾向は条件により１０．５以下
で消失した。比重は排泥水で１．２〜１．３が１．０７
〜１．１５となりサイクロンで２段、３段と直列に処理
するに従い１．０４程度まで低下した。砂分はゲル化に
も関係するが、５〜２５％のものを容易に１％程度にで
きた。工程に使用可能の泥水は比重１．０６〜１．１５
の程度であるが、泥水として使用可能であり、ほぼ砂分
だけが除去されたものに相当する処理品が得られるのが
特徴である。200m diameter for adding carbon dioxide and realizing shearing force
A standard cyclone of m or less and standard operating conditions were used, and the blowing pressure was 0.5 to 2 kg / cm 2 . The pH was 10.4, which decreased to 9.7 after passing through the cyclone, and easily decreased to about 8.2 when the amount of carbon dioxide was increased, indicating a quantitative reaction. The gelation tendency disappeared at 10.5 or less depending on the conditions. The specific gravity is 1.2 to 1.3 for discharged mud water and 1.07
It became about 1.15 and decreased to about 1.04 as the cyclone was treated in series with two stages and three stages. Although the sand content is related to gelation, the sand content of 5 to 25% could be easily made to about 1%. The muddy water that can be used in the process has a specific gravity of 1.06 to 1.15.
However, the feature is that it can be used as muddy water, and a treated product equivalent to the one in which almost only sand is removed can be obtained.
【００２４】微粒子に富む排泥水処理から、７４ミクロ
ン以下５３％、４４ミクロン以下が３６％で泥水用に再
使用可能の泥が得られた。From the effluent treatment, which was rich in fine particles, a mud reusable for muddy water was obtained with 53% below 74 microns and 36% below 44 microns.
【００２５】[0025]
【実施例２】図２は廃泥水、廃泥、処理した調整泥水、
埋め戻しまたは埋めたて用の脱水または含水流動性土
砂、泥土の集配、処理、貯蔵、使用法の系統図である。Example 2 FIG. 2 shows waste mud, waste mud, treated mud,
It is a systematic diagram of the collection, delivery, processing, storage, and usage of dehydrated or water-containing fluidized earth and sand and mud for backfilling or refilling.
【００２６】掘削穴１０１と現場の処理装置１０２は泥
水の処理とそれを利用した掘削作業を繰返し、発生した
分離土砂１０４は現場に埋め戻す。現場装置では技術的
にまたは時間的に再生できない泥水および沈降泥はタン
ク車１０３によって貯蔵処理基地の貯槽４８にいれ、貯
蔵処理装置３０で処理する。処理済泥水は貯槽１０５か
ら各作業現場へと運搬する。分離された土砂５３はダン
プ車あるいは通常トラックによって掘削現場、その他建
設現場、農地に運搬できる。サイクロン下からの濃縮含
水微粒子は貯槽４０に湿状態で貯蔵され、必要により掘
削現場に供給し、解膠して利用しまたは自装置で比重調
整用その他に使用するほか他の貯蔵処理装置の間で授受
する。５４、５５は炭酸ガス、ベントナイト、安定剤、
増粘剤、水供給を示す。The excavation hole 101 and the on-site processing device 102 repeat the treatment of muddy water and excavation work using the same, and the generated separated soil 104 is backfilled to the site. The muddy water and the settled mud which cannot be technically or temporally regenerated in the field device are put into the storage tank 48 of the storage processing base by the tank car 103 and processed by the storage processing device 30. The treated mud is transported from the storage tank 105 to each work site. The separated soil 53 can be transported to an excavation site, other construction sites, farmland by a dump truck or a normal truck. Condensed water-containing fine particles from under the cyclone are stored in a storage tank 40 in a wet state, supplied to the excavation site as necessary, peptized and used, or used for adjusting the specific gravity by other equipment or other storage processing equipment. Send and receive at. 54 and 55 are carbon dioxide, bentonite, stabilizer,
Indicates thickener, water supply.
【００２７】[0027]
【実施例３】図１に例示した装置にボンベ炭酸ガスを吹
き込む場合、装置入り口３８または複数であり得る装置
内３９での吹き込みが適当である。被処理物ｐＨが掘削
規格内であってもゲル化傾向のものは炭酸ガス使用によ
って分離、脱水を改善できた。任意量を吹き込むことが
できた。[Embodiment 3] When carbon dioxide gas is blown into the apparatus illustrated in FIG. 1, it is appropriate to blow at the apparatus inlet 38 or inside the apparatus 39 which may be plural. The object to be processed pH is separated by carbon dioxide gas used as the gelling tendency even within excavation standard, can improve dewatering. I was able to blow an arbitrary amount.
【００２８】有効性はｐＨ測定と沈降物の凝固性の目
視、砂分離性、脱水性等により容易に判定できる。特に
管路等に撹拌機能が無くてもサイクロン自体、撹拌混合
器として働くが、スタティックミキサー等を併用しても
よい。管路への吹き込み、あるいはポンプへの吸い込み
も有効で、サイクロンの強い撹拌剪断力が作用し、炭酸
ガス吹き込み量に応じてほぼ定量的にｐＨ低下があるこ
とが認められ、ゲル化解消と土砂分の円滑な分離が目視
できた。The effectiveness can be easily judged by measuring the pH, visually observing the coagulability of the sediment, sand separation property, dehydration property and the like. In particular, the cyclone itself works as an agitating mixer even if the conduit or the like does not have an agitating function, but a static mixer or the like may be used together. It is also effective to blow it into the pipeline or suck it into the pump, and it was confirmed that the strong stirring and shearing force of the cyclone acted and that the pH decreased almost quantitatively depending on the amount of carbon dioxide gas blown in. The smooth separation of the minutes was visible.
【００２９】[0029]
【実施例４】図３は流動性がある程度に水分残した本発
明による工程からの土砂を配管等６０の埋め戻しに利用
する方法を示す図である。鋼板等の弾性支持物６２に付
けた振動機２２、くさび型断面の振動子６１、分離泥水
通路６４、濾過層６３からなる振動装置で、流動性泥を
分離された泥水６６と脱水土砂６５に分離する。くさび
型は振動伝達と引き抜きを容易にする。[Embodiment 4] FIG. 3 is a diagram showing a method of utilizing the earth and sand from the process according to the present invention in which water is left to a certain degree of fluidity for backfilling of the pipe 60 or the like. Vibrator 22 attached to the elastic support material 62 such as a steel plate, the vibrator 61 of the wedge-shaped cross section, separated mud passage 64, a vibration apparatus comprising a filtration layer 63, dehydrated and mud water 66 separated liquidity mud sediment 65 To separate. The wedge shape facilitates vibration transmission and extraction.
【００３０】[0030]
【発明の効果】気相−液相反応は一般に低効率で、特に
ゲル化傾向の建設工事用泥水では反応困難と思われ勝ち
であるに拘らず、本発明は泥水共存で剪断力をかけ易
く、剪断力をかけることによって泥水に容易に分散でき
る中和剤として炭酸ガスを選択することにより反応させ
ゲル化あるいは凝結を解消しつつ、泥水から土砂あるい
は比較的微細な粒子成分を分離し、分離された土砂成分
については脱水を容易にする。調整処理された泥水につ
いては比重を下げ、安定化した。静置時沈降した微粒子
でも、高密度化による脱水土壌化は少なく、必要により
所定時間毎に泥水貯槽の泥水に循環運動を与えることに
より沈降を防止し、沈降物は解膠、泥水化が容易になっ
た。泥水循環は更に槽水面の更新によって、曝気され、
泥水の腐敗を防止し、保存を可能にした。このようにし
て泥水の貯蔵処理基地と掘削現場との泥水授受を可能に
したので、廃棄物発生を減じ、従来困難であった泥水、
汚水、汚泥、スラリー等の分級、精製、リサイクル、土
砂脱水の問題の解決を可能にした。INDUSTRIAL APPLICABILITY The gas phase-liquid phase reaction is generally low in efficiency, and although the reaction tends to be difficult especially in mud for construction work which tends to gel, the present invention makes it easy to apply shear force in the presence of mud. , Carbon dioxide is selected as a neutralizing agent that can be easily dispersed in muddy water by applying a shearing force to cause reaction and eliminate gelation or coagulation, while separating sediment or relatively fine particle components from muddy water. It facilitates dehydration of the sediment components. The adjusted muddy water was stabilized by lowering its specific gravity. Even the fine particles that settled down when statically set do not tend to become dehydrated soil due to densification, and if necessary, give a circulating motion to the muddy water in the muddy water storage tank to prevent settling, making it easy to peptize and muddy the sediment. Became. The mud circulation is further aerated by renewing the tank surface,
Prevents muddy water from spoiling and enables preservation. In this way, it became possible to transfer muddy water between the muddy water storage and treatment base and the excavation site, reducing waste generation and making muddy water that was previously difficult.
It has made it possible to solve the problems of classification, refining, recycling of sewage, sludge, slurry, etc., and sediment dewatering.
【００３１】泥分離能力の調節は炭酸ガスの使用量の増
減、ポンプ流量の増減によるサイクロン分離能力の調節
によって容易になる。The mud separation capacity can be easily adjusted by increasing / decreasing the amount of carbon dioxide used and / or increasing / decreasing the pump flow rate.
【００３２】処理後、槽中または外に堆積した土砂、
泥、汚泥、雑物から静置または簡易な脱水装置によって
水切りのよい埋め立て埋め戻し用土砂を生産でき、貯蔵
して、掘削現場等にもどすことができる等既に述べた単
位操作方法を組み合わせることによって、単に泥水のリ
サイクルができるだけでなく、埋め戻し用土砂、泥、泥
水調整用の分散性のよい濃厚泥漿等を生産し、利用でき
る等複数の効果がある。After the treatment, earth and sand deposited in or outside the tank,
By combining the unit operation methods described above, it is possible to produce well-drained backfill soil from mud, sludge, and miscellaneous materials by static or simple dewatering equipment, store it, and return it to the excavation site. In addition to simply recycling muddy water, there are multiple effects such as producing and using earth and sand for backfilling, mud, and concentrated sludge with good dispersibility for adjusting muddy water.
【００３３】このようにして掘削現場、処理または貯蔵
基地での処理費用の節約、貯蔵機能の設置による廃棄泥
水の発生の抑制または防止、複数の基地または現場の結
合による処理、泥水調整および輸送費用の節減（人件
費、動力、燃料費、設備費、水の供給にかかる待ち時
間）と施工杭の品質向上に有効である。In this way, the processing cost is saved at the drilling site, the treatment or storage base, the generation or disposal of waste mud is suppressed or prevented by the installation of the storage function, the treatment by combining a plurality of bases or sites, the mud adjustment and transportation costs. It is effective in saving the cost (labor cost, power, fuel cost, equipment cost, waiting time for water supply) and improving the quality of the construction pile.
【図１】土砂、汚泥または泥水、安定化泥水の処理、脱
水または浄化装置の断面説明図とそれを組み込んだ貯蔵
・処理・使用システムである。FIG. 1 is a cross-sectional explanatory view of a device for treating, dehydrating or purifying sediment, sludge or muddy water, stabilized muddy water, and a storage / treatment / use system incorporating the same.
【図２】集配、貯蔵、処理、使用系の説明図である。FIG. 2 is an explanatory diagram of a collection / delivery, storage, processing, and usage system.
【図３】配管等のピット断面と振動脱水機説明図。FIG. 3 is an explanatory view of a pit cross section of piping and the like and a vibration dehydrator.
１ 泥水またはスラリーの入り口分配器 ２ 振動篩ストレーナー ４、３０ 沈降槽 ５ 溢流堰 ６ 弁 ９、２９ 界面検出系 １０、２２ 振動機 １１ 脱水篩 １４、１９、２４、２７ サイクロン １８、２５、２６、３４ ポンプ ３８、３９ 炭酸ガス吹き込み装置 ４８ 複数であり得る貯蔵処理基地の粗泥水貯槽 １０１ 杭または連壁穴 １０２ 複数であり得る掘削現場の処理装置 １０３ 輸送手段 1 Muddy water or slurry inlet distributor 2 Vibrating screen strainer 4, 30 settling tank 5 overflow weir 6 valves 9, 29 Interface detection system 10, 22 vibrator 11 Dewatering sieve 14, 19, 24, 27 cyclones 18, 25, 26, 34 pumps 38, 39 Carbon dioxide blowing device 48 Rough mud storage tank of storage treatment base which may be plural 101 Pile or wall hole 102 Drilling site treatment device, which may be more than one 103 means of transport
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｅ０２Ｄ 5/18 Ｂ０９Ｂ 5/00 ＺＡＢＦ (58)調査した分野(Int.Cl.7，ＤＢ名) C02F 11/00 - 11/20 B04C 9/00 B09B 5/00 E02D 5/18 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 7 identification code FI E02D 5/18 B09B 5/00 ZABF (58) Fields investigated (Int.Cl. 7 , DB name) C02F 11/00-11 / 20 B04C 9/00 B09B 5/00 E02D 5/18
Claims (4)
または泥を工事場所の貯蔵槽を兼ねた処理設備から輸送
手段で処理貯蔵設備まで輸送し、処理貯蔵設備によって
泥水と、微粒子含有量を減じた土砂分とに分離し、含有
土砂分を分離した泥水は新しい掘削操作に使用し、土砂
は元のまたは別の掘削工事の埋め戻し用土砂または建設
用土砂あるいは農地改良用として使用する泥水系処理に
おいて、 (1) 炭酸ガスを流動する泥水に加えつつまたは加えた
後、剪断力をかけつつ粒子分離をすること、 (2) 微粒子を液体サイクロンによって分別しサイクロン
下に得た土砂分をさらに皿状物または槽中を通過または
滞留させ泥水と分離して水きり機能を有する置場に堆積
し脱水すること、 (3) 土砂分を分離した泥水を槽に貯蔵し槽内に連続また
は間歇的循環流れを与えること、 からなる操作を行うことを特徴とする掘削用泥水処理方
法。1. Muddy water or mud generated by excavation work and containing mud and sand components is transported from a treatment facility that also serves as a storage tank at the construction site to a treatment storage facility by means of transportation, and the treatment storage facility causes muddy water and fine particle content. And mud containing the sediment content are used for new excavation operation, and the sediment is used for backfilling or construction earth or improvement of agricultural land of the original or another excavation work. in mud system processing, (1) after or added while applying the mud to the dynamic flow the carbonate gas, to a particle separation while applying a shear force to obtain under cyclone fractionated by hydrocyclone (2) fine particles Sediment is passed through or retained in a dish or tank to separate it from muddy water and accumulate it in a storage facility with a drainage function for dehydration. (3) Muddy water from which muddy water has been separated is stored in the tank and continuously stored in the tank. Or intermittent A method for treating mud water for excavation, which comprises applying a circulating flow.
プ、泥水分離用穴、隙間または濾過材から選ばれた機能
を備え、重力または振動力により相分離を促進する請求
項１記載の掘削用泥水処理方法。2. The excavation according to claim 1, wherein the plate-shaped object, the tank or the storage area is provided with a function selected from a muddy water pump, a muddy water separating hole, a gap or a filtering material, and phase separation is promoted by gravity or vibration force. Muddy water treatment method.
処理貯蔵設備からなる掘削泥水または泥から泥粒子を含
む稀薄泥水と土砂を分離する工程とタンク車または管路
からなる輸送手段を含む請求項１または２記載の掘削用
泥水処理方法。3. A method of separating excavated mud or dilute mud containing mud particles and mud from mud, which comprises a plurality of excavation work sites and one or more processing and storage facilities, and a transportation means composed of a tank car or a pipeline. Item 1. The method for treating mud water for excavation according to Item 1 or 2.
工事であり、重液泥水または使用済重液泥水が粘土、ベ
ントナイト、シルト、増粘剤、微細繊維性粒子の一つま
たは組合せを含むものである請求項１または３記載の掘
削用泥水処理方法。4. The excavation work is on-site driving pile or underground continuous wall work, and the heavy liquid mud or used heavy liquid mud is one or a combination of clay, bentonite, silt, thickener and fine fibrous particles. The method for treating mud water for excavation according to claim 1 or 3, which comprises:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15989893A JP3493209B2 (en) | 1993-05-25 | 1993-05-25 | Drilling mud treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15989893A JP3493209B2 (en) | 1993-05-25 | 1993-05-25 | Drilling mud treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07124595A JPH07124595A (en) | 1995-05-16 |
| JP3493209B2 true JP3493209B2 (en) | 2004-02-03 |
Family
ID=15703590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15989893A Expired - Fee Related JP3493209B2 (en) | 1993-05-25 | 1993-05-25 | Drilling mud treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3493209B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238444A (en) * | 2016-09-26 | 2016-12-21 | 深圳申佳原环保科技有限公司 | The system of industrial treatment mud dregs |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4530391B2 (en) * | 2000-12-26 | 2010-08-25 | 株式会社クボタ | Method of treating construction mud soil and retaining wall filled with construction mud soil |
| JP2007175652A (en) * | 2005-12-28 | 2007-07-12 | Sumitomo Heavy Ind Ltd | Sludge thickener and its construction method |
| CN103769312A (en) * | 2014-01-09 | 2014-05-07 | 广东华隧建设股份有限公司 | Construction method for processing and recycling slurry shield muck |
| CN107355199B (en) * | 2017-06-08 | 2019-04-19 | 巴州山水源工程技术有限公司 | A kind of processing method of deep-well sulphonated polymer mud discarded slurry and landwaste |
| CN110090487A (en) * | 2019-05-06 | 2019-08-06 | 中赟国际工程有限公司 | A kind of slurry long range Hydraulic transportation and equipment for separating liquid from solid and separating technology |
-
1993
- 1993-05-25 JP JP15989893A patent/JP3493209B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238444A (en) * | 2016-09-26 | 2016-12-21 | 深圳申佳原环保科技有限公司 | The system of industrial treatment mud dregs |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07124595A (en) | 1995-05-16 |
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