JPH0115654B2 - - Google Patents
Info
- Publication number
- JPH0115654B2 JPH0115654B2 JP58247162A JP24716283A JPH0115654B2 JP H0115654 B2 JPH0115654 B2 JP H0115654B2 JP 58247162 A JP58247162 A JP 58247162A JP 24716283 A JP24716283 A JP 24716283A JP H0115654 B2 JPH0115654 B2 JP H0115654B2
- Authority
- JP
- Japan
- Prior art keywords
- cement
- amount
- liquid
- concentration
- soil pile
- 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
Links
- 239000004568 cement Substances 0.000 claims description 82
- 239000007788 liquid Substances 0.000 claims description 44
- 239000002689 soil Substances 0.000 claims description 33
- 238000001514 detection method Methods 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 9
- 238000004064 recycling Methods 0.000 claims 1
- 239000000440 bentonite Substances 0.000 description 13
- 229910000278 bentonite Inorganic materials 0.000 description 13
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 13
- 239000008267 milk Substances 0.000 description 11
- 210000004080 milk Anatomy 0.000 description 11
- 235000013336 milk Nutrition 0.000 description 11
- 238000010276 construction Methods 0.000 description 7
- 238000009412 basement excavation Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 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
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Description
本発明は、施工が簡単であること、施工費が安
上がりであること、及び、低公害工法であること
などから、山止め壁や止水壁の施工に広く適用さ
れているソイルパイル工法において、ソイルパイ
ル造成過程で不可避的に発生するところの、土
砂、水、セメント、ベントナイトなどの混在した
余剰液を再利用するために、ソイルパイル造成時
に発生する余剰液から土砂成分を分離除去する分
離装置、及び、分離後のセメント成分を含有する
再利用液と追加セメントとを混合する混合装置を
設けたソイルパイル余剰液の再利用プラントに関
する。
ソイルパイル余剰液を再利用するに当たり、縦
孔掘削に伴つて排出される土砂の量が推定できる
ところから、従来一般に、上記土砂量との相対関
係に基づき、ソイルパイル余剰液中のセメント濃
度を算出し、それにより追加セメント量を一義的
に定め、余剰液から土砂成分を除去した後の再利
用液に対し、常に一定量のセメントを追加して混
合装置で混合し、ソイルパイル用の新たなセメン
トミルクを得ていた。
ところが、掘削地夫々によつて土砂の性質が異
なるとともに、掘削条件などによつて余剰液中に
含まれる土砂成分の含有量が異なり、そして、そ
れに伴い、土砂成分の分離度合いにも変化を生
じ、再利用液中のセメント濃度が変化し、それに
起因してソイルパイル用の新たなセメントミルク
におけるセメント濃度にバラツキを生じ、ソイル
パイルの強度が不測に低下するおそれがあつた。
さらにまた、掘削地や掘削深さの条件によつて
は、地下水の浸出量が経時的に大きく変化して土
砂を流失したり、逆に降雨によつて流入する、あ
るいは、作業休止による沈澱などによつても、再
利用液中の土砂含有量が変化することもあつて、
このような場合にも、土砂量を基準とするもので
は、再利用液中のセメント濃度にバラツキを生じ
易いという問題があつた。
そのため、従来では、追加セメント量を多い目
に供給せざるを得ず、セメントの節約を図る上で
未だ不十分であつた。
本発明は、上記の点に鑑み、新たなセメントの
追加を過不足無く行えるようにして、所定強度の
ソイルパイルを経済性有利に施工できるようにす
ることを目的とする。
本発明は、上記目的を達成するために、冒頭に
記載したソイルパイル余剰液の再利用プラントに
おいて、ソイルパイルの造成時に発生する余剰液
から土砂成分を分離除去する分離装置、及び分離
後のセメント成分を含有する再利用液と追加セメ
ントとを混合する混合装置とを設けたソイルパイ
ル余剰液の再利用プラントであつて、前記再利用
液中のセメント濃度を検出する濃度検出装置を設
けるとともに、前記混合装置に供給する追加セメ
ントの供給量を調整するセメント量調整機構を設
け、前記濃度検出装置の検出結果に基いて、前記
混合装置内でのセメント濃度が設定範囲内になる
ように、前記セメント量調整機構による追加セメ
ント供給量を制御する制御機構を備えてあること
を特徴とする。
つまり、混合装置に供給される再利用液中の土
砂の量ではなく、セメント濃度を検出し、そのセ
メント濃度に基き、追加セメントの供給量を調節
し、所定のセメント濃度を有するセメントミルク
を得るのである。
したがつて、掘削条件や土質などによる余剰液
中の土砂成分の含有量や、その分離度合の変化に
拘らず、また、地下水の影響による土砂の流失
や、降雨の影響による土砂の流入などに拘らず、
セメントを混合装置に過不足無く供給し易いもの
であり、これによつて、所定強度のソイルパイル
を、必要最小限のセメント消費でもつて極めて経
済性有利に施工できるようになつた。
また、ソイルパイル夫々のセメント濃度がほぼ
一定になり、品質の安定したソイルパイルが得ら
れ、強度面でも良好な山止め壁や止水壁を施工で
きるようになつた。
以下、本発明の実施例を例示図に基いて詳述す
る。
セメントサイロ１、ベントナイトサイロ２、貯
水タンク３、セメントの固化を遅延させる混和剤
タンク４、及び、ソイルパイル余剰液から土砂成
分を分離除去した後の再利用液の貯留槽５が、
夫々、第１ないし第５計量装置６，７，８，９，
１０を介在させて混合装置１１に連通接続され、
ソイルパイル余剰液の再利用プラントが構成され
ている。
前記再利用液を得るに、ソイルパイル余剰液を
ポンプ１２により分離装置１３に供給し、土砂成
分を分離して廃土槽１４に回収させ、そして、土
砂成分を分離した後の再利用液を前記貯留槽５に
供給するように構成されている。
前記混合装置１１は、第１及び第２混合槽１
５，１６と、撹拌スクリユー１７を備えた貯液混
合槽１８とから構成され、第１及び第２混合槽１
５，１６から供給されるセメント、ベントナイ
ト、水、混和剤及び再利用液の混合物を貯液混合
槽１８で撹拌混合し、新たなセメントミルクを調
合して掘削機１９に供給するように構成されてい
る。
図中２０…はレベルスイツチであり、２１，２
１はレベル計である。また、図中２２は、第１な
いし第３及び第５計量装置６，７，８，１０から
第１及び第２混合槽１５，１６夫々に各種原料を
供給するための搬送用コンプレツサーであり、そ
して、図中２３は、パイプラインに介在されたバ
ルブ夫々を開閉制御操作するための制御用コンプ
レツサーである。
前記再利用液の貯留槽５から第５計量装置１０
に供給される再利用液に対し、その再利用液中の
セメント濃度及び混合槽１５，１６で作成された
セメントミルク中のセメント濃度を検出する濃度
検出装置２４が設けられている。
前記第１計量装置６への供給側に第１バルブ
A1が設けられるとともに、その排出側に第２バ
ルブA2が設けられ、追加セメントの供給量を調
整するセメント量調整機構２５が構成されてい
る。
前記第２及び第４計量装置７，９夫々において
も、供給側に第１バルブB1，C1が、そして、排
出側に第２バルブB2，C2が夫々設けられ、夫々、
ベントナイト供給量調整機構２６及び混和剤供給
量調整機構２７が構成されている。
前記第３計量装置８の供給側に第１バルブD1
が、そして、排出側に第２バルブD2が夫々設け
られ、水が不足した場合に所定量づつ計量して補
充できるように構成されている。
前記第５計量装置１０の供給側に第１バルブ
E1が設けられるとともに、排出側に第２バルブ
E2が設けられ、貯留槽５からの再利用液の所定
量を前記混合装置１１に供給させられるように構
成されている。
前記濃度検出装置２４からの検出結果を制御装
置２８に入力するように構成され、この制御装置
２８において、検出セメント濃度に基き、第５計
量装置１０で特定される１回の再利用液供給量中
に含まれるセメント量を算出するように構成され
ている。また、この制御装置２８においては、上
述の算出セメント量に基き、それとの比例計算に
より前記ベントナイト及び混和剤の含有量が算出
されるように構成されている。
更に、前記制御装置２８において、ソイルパイ
ル用として供給するセメントミルクでのあらかじ
め設定した重量配合によるセメント、ベントナイ
ト及び混和剤夫々の重量と、上述の算出された、
再利用液中のセメント、ベントナイト及び混和剤
夫々の含有量とを減算し、セメント、ベントナイ
ト及び混和剤夫々の追加すべき重量を算出設定す
るように構成されている。
前記第１、第２及び第４計量装置６，７，９
夫々による検出重量が制御装置２８に入力するよ
うに構成されるとともに、それら検出重量と上述
の算出設定された追加供給量とが比較判別され、
かつ、制御装置２８から第１、第２及び第４計量
装置６，７，９夫々の第１及び第２バルブA1，
B1，C1，A2，B2，C2に操作信号が入力され、前
記検出重量夫々が設定追加供給量になるまで、第
１バルブA1，B1，C1夫々を開き状態に、かつ、
第２バルブA2，B2，C2夫々を閉じ状態に維持し、
そして、検出重量夫々が設定追加供給量になるに
伴い、第１バルブA1，B1，C1夫々を閉じるとと
もに第２バルブA2，B2，C2夫々を開き、再利用
液中のセメン濃度検出に基き、不足した量だけセ
メント、ベントナイト及び混和剤夫々を混合槽１
５，１６に供給し、混合装置１１内でのセメント
濃度を設定値に自動的に維持するように制御機構
が構成されている。
なお、第１ないし第３計量装置６，７，８夫々
は重量に基いて計量するように、そして、第４及
び第５計量装置９，１０夫々は容積に基いて計量
するように構成されている。
前記濃度検出装置２４は、貯液混合槽１８から
供給されるセメントミルクにおけるセメント濃度
をも検出するように構成され、その検出セメント
濃度と、制御装置２８で前述の重量配合に基いて
設定されるセメント濃度とを制御装置２８に入力
し、その比較結果に基き、検出セメント濃度が設
定セメント濃度と異なる場合には、制御装置２８
によつて加算・減算され、セメント、ベントナイ
ト及び混和剤の追加量を調整し、所定セメント濃
度のセメントミルクが得られるように自動的に修
正を加え、セメントミルクの品質を安定させるよ
うに構成されている。
次に、セメントミルクの新液重量配合例、再利
用液の構成例、それに伴う追加材料の構成例の具
体数値例を表記しておく。なお、この例では、貯
留槽５から混合装置１１に供給する１回あたりの
量を１m3とした。
The present invention is a soil pile construction method that is widely applied to the construction of mountain retaining walls and water-stop walls because it is easy to construct, has low construction costs, and is a low-pollution construction method. A separation device that separates and removes earth and sand components from the surplus liquid generated during soil pile construction, in order to reuse the surplus liquid mixed with earth and sand, water, cement, bentonite, etc. that is inevitably generated during the soil pile creation process, and The present invention relates to a soil pile surplus liquid reuse plant equipped with a mixing device for mixing a reuse liquid containing separated cement components with additional cement. When reusing soil pile surplus liquid, the cement concentration in the soil pile surplus liquid was generally calculated based on the relative relationship with the above-mentioned amount of earth and sand, since the amount of earth and sand discharged during vertical hole excavation can be estimated. By this, the amount of additional cement is uniquely determined, and a certain amount of cement is always added to the reused liquid after removing the earth and sand components from the surplus liquid and mixed in a mixing device to create new cement milk for soil piles. I was getting . However, the properties of the soil differ depending on the excavation site, and the content of the soil components contained in the surplus liquid varies depending on the excavation conditions, etc., and accordingly, the degree of separation of the soil components also changes. , the cement concentration in the reused liquid changes, which causes variations in the cement concentration in new cement milk for soil piles, and there is a risk that the strength of the soil pile may unexpectedly decrease. Furthermore, depending on the conditions of the excavation site and excavation depth, the amount of groundwater seepage may change significantly over time, leading to soil being washed away, conversely flowing in due to rainfall, or settling due to work stoppages. Depending on
Even in such cases, there is a problem in that the method based on the amount of soil and sand tends to cause variations in the cement concentration in the recycled liquid. Therefore, in the past, a large amount of additional cement had to be supplied, which was still insufficient in terms of saving cement. In view of the above points, an object of the present invention is to make it possible to add new cement with just the right amount and to make it possible to construct a soil pile of a predetermined strength economically. In order to achieve the above object, the present invention provides a separation device that separates and removes earth and sand components from the surplus liquid generated during soil pile construction, and a separation device that separates and removes the cement components after separation, in the soil pile surplus liquid reuse plant described at the beginning. A soil pile surplus liquid reuse plant that is provided with a mixing device that mixes the contained recycled liquid and additional cement, the soil pile surplus liquid reuse plant being provided with a concentration detection device that detects the cement concentration in the recycled liquid, and the mixing device A cement amount adjustment mechanism is provided to adjust the amount of additional cement supplied to the mixing device, and based on the detection result of the concentration detection device, the cement amount adjustment mechanism is configured to adjust the amount of cement so that the cement concentration in the mixing device is within a set range. The present invention is characterized by comprising a control mechanism for controlling the amount of additional cement supplied by the mechanism. In other words, the cement concentration is detected instead of the amount of earth and sand in the recycled liquid supplied to the mixing device, and based on the cement concentration, the amount of additional cement supplied is adjusted to obtain cement milk with a predetermined cement concentration. It is. Therefore, regardless of changes in the content of sediment components in the surplus liquid and their degree of separation due to excavation conditions, soil quality, etc., and regardless of changes in the content of sediment components in the surplus liquid and the degree of separation thereof, it is also possible to prevent sediment from being washed away due to the influence of groundwater or inflow due to the influence of rainfall. Regardless,
It is easy to supply just the right amount of cement to the mixing device, and as a result, it has become possible to construct soil piles of a predetermined strength in an extremely economically advantageous manner while consuming the necessary minimum amount of cement. In addition, the cement concentration in each soil pile became almost constant, resulting in soil piles of stable quality, and it became possible to construct pile-stop walls and water-stop walls with good strength. Hereinafter, embodiments of the present invention will be described in detail based on illustrative drawings. A cement silo 1, a bentonite silo 2, a water storage tank 3, an admixture tank 4 for delaying the solidification of cement, and a storage tank 5 for reused liquid after separating and removing earth and sand components from the soil pile surplus liquid,
first to fifth measuring devices 6, 7, 8, 9, respectively;
connected to the mixing device 11 via 10,
A soil pile surplus liquid reuse plant has been constructed. To obtain the reused liquid, the surplus soil pile liquid is supplied to the separator 13 by the pump 12, the earth and sand components are separated and collected in the waste soil tank 14, and the reused liquid after the earth and sand components have been separated is supplied to the separator 13. It is configured to be supplied to the storage tank 5. The mixing device 11 includes first and second mixing tanks 1
5, 16, and a storage mixing tank 18 equipped with a stirring screw 17, the first and second mixing tanks 1
The mixture of cement, bentonite, water, admixture, and recycled liquid supplied from 5 and 16 is stirred and mixed in a liquid storage mixing tank 18, and new cement milk is prepared and supplied to the excavator 19. ing. In the figure, 20... is a level switch, 21, 2
1 is a level meter. In addition, 22 in the figure is a conveying compressor for supplying various raw materials from the first to third and fifth measuring devices 6, 7, 8, 10 to the first and second mixing tanks 15, 16, respectively, Reference numeral 23 in the figure represents a control compressor for controlling the opening and closing of each valve interposed in the pipeline. From the reused liquid storage tank 5 to the fifth measuring device 10
A concentration detection device 24 is provided for detecting the cement concentration in the recycled liquid and the cement concentration in the cement milk produced in the mixing tanks 15 and 16. a first valve on the supply side to the first metering device 6;
A 1 is provided, and a second valve A 2 is provided on the discharge side thereof, thereby forming a cement amount adjustment mechanism 25 that adjusts the amount of additional cement supplied. In each of the second and fourth measuring devices 7 and 9, first valves B 1 and C 1 are provided on the supply side, and second valves B 2 and C 2 are provided on the discharge side, respectively.
A bentonite supply amount adjustment mechanism 26 and an admixture supply amount adjustment mechanism 27 are configured. A first valve D 1 on the supply side of the third metering device 8
However, a second valve D2 is provided on the discharge side, so that when water becomes insufficient, it can be replenished by measuring a predetermined amount at a time. a first valve on the supply side of the fifth metering device 10;
E 1 is installed and a second valve is installed on the discharge side.
E 2 is provided and is configured to supply a predetermined amount of reused liquid from the storage tank 5 to the mixing device 11 . The detection result from the concentration detection device 24 is input to a control device 28, and in this control device 28, the amount of recycled liquid supplied at one time specified by the fifth measuring device 10 is determined based on the detected cement concentration. It is configured to calculate the amount of cement contained therein. Further, this control device 28 is configured to calculate the contents of bentonite and admixture based on the above-mentioned calculated amount of cement by proportional calculation therewith. Furthermore, in the control device 28, the respective weights of cement, bentonite, and admixture according to the preset weight combination in the cement milk supplied for soil pile, and the calculated above-mentioned,
The content of each of cement, bentonite, and admixture in the recycled liquid is subtracted to calculate and set the weight to be added of each of cement, bentonite, and admixture. Said first, second and fourth measuring devices 6, 7, 9
The detected weights are input to the control device 28, and the detected weights are compared and determined with the above-mentioned calculated and set additional supply amount,
and the first and second valves A 1 of the first, second, and fourth metering devices 6, 7, and 9, respectively, from the control device 28;
An operation signal is input to B 1 , C 1 , A 2 , B 2 , and C 2 , and the first valves A 1 , B 1 , and C 1 are kept open until each of the detected weights reaches the set additional supply amount. ,and,
maintaining each of the second valves A 2 , B 2 , and C 2 in a closed state;
Then, as each of the detected weights reaches the set additional supply amount, the first valves A 1 , B 1 , and C 1 are closed, and the second valves A 2 , B 2 , and C 2 are opened, and the amount of water in the recycled liquid is increased. Based on the detection of cement concentration, add the insufficient amount of cement, bentonite and admixture to mixing tank 1.
A control mechanism is configured to automatically maintain the cement concentration within the mixing device 11 at a set value. The first to third measuring devices 6, 7, and 8 are each configured to measure based on weight, and the fourth and fifth measuring devices 9, 10 are each configured to measure based on volume. There is. The concentration detection device 24 is configured to also detect the cement concentration in the cement milk supplied from the storage liquid mixing tank 18, and is set based on the detected cement concentration and the above-mentioned weight composition by the control device 28. Based on the comparison result, if the detected cement concentration differs from the set cement concentration, the control device 28
The system is configured to add and subtract amounts of cement, bentonite, and admixtures, automatically make corrections to obtain cement milk with a predetermined cement concentration, and stabilize the quality of cement milk. ing. Next, specific numerical examples of the weight composition of the new cement milk, the composition of the reused fluid, and the composition of additional materials associated therewith will be described. In this example, the amount supplied from the storage tank 5 to the mixing device 11 at one time was 1 m 3 .
【表】
上記再利用液夫々における検出セメント濃度は
次の通りであつた。
再利用液 No.１ 235Kg/m3
〃 No.２ 270Kg/m3
〃 No.３ 308Kg/m3
前記濃度検出装置２４としては、比重計、密度
計、PH計、カルシウム濃度計、電導率計など各種
のものが採用できる。
前記制御装置２８において、セメント、ベント
ナイト及び混和剤夫々の重量配合による設定値が
変更自在に構成されており、例えば、通常のソイ
ルパイルでは、セメントミルク全体に対するセメ
ントの重量比を30〜40wt％にしながらも、鋼管
パイルのようにセメントの強度が低くて済むよう
な場合には上記セメント重量比を20〜25wt％に
するとか、天候に応じて固化遅延のための混和剤
の設定値を変更するなど、施工条件や各種の条件
に応じてセメント、ベントナイト及び混和剤夫々
の設定値を変更できるように構成されている。
上記実施例では、セメント濃度に基いて、比例
的にベントナイト及び混和剤の追加供給量も制御
するようにしているが、本発明としては、セメン
トの追加供給量だけを制御するものでも良い。
また、上記制御機構では、追加すべきセメント
の量を設定値に近づけるように制御しているが、
供給の際のオーバーランを加味し、上下限の範囲
内に維持するようにしても良く、要するに、本発
明としては、貯液混合槽１８内でのセメント濃度
が設定範囲内に維持されるように追加セメントの
供給量を制御するものであれば良い。[Table] The detected cement concentrations in each of the above reused liquids were as follows. Recycled liquid No. 1 235Kg/m 3 〃 No. 2 270Kg/m 3 〃 No. 3 308Kg/m 3 The concentration detection device 24 includes a hydrometer, a density meter, a PH meter, a calcium concentration meter, and a conductivity meter. A variety of things can be adopted. In the control device 28, the set values based on the respective weight combinations of cement, bentonite, and admixtures are configured to be changeable. For example, in a normal soil pile, the weight ratio of cement to the entire cement milk is set to 30 to 40 wt%. In cases where the strength of the cement is low, such as steel pipe piles, the above cement weight ratio may be increased to 20 to 25 wt%, or the set value of the admixture to delay solidification may be changed depending on the weather. It is configured such that the set values of cement, bentonite, and admixture can be changed according to construction conditions and various other conditions. In the above embodiment, the additional supply amount of bentonite and admixture is also controlled proportionally based on the cement concentration, but the present invention may be such that only the additional supply amount of cement is controlled. Furthermore, in the above control mechanism, the amount of cement to be added is controlled to be close to the set value;
It may be possible to maintain the cement concentration within the upper and lower limits by taking into account overrun during supply.In short, the present invention maintains the cement concentration within the set range in the liquid storage mixing tank 18. Any method that controls the amount of cement added to the system is fine.
図面は、本発明のソイルパイル余剰液の再利用
プラントの実施例を示すフローシートである。
１１……混合装置、１３……分離装置、２４…
…濃度検出装置、２５……セメント量調整機構、
２８……制御装置。
The drawing is a flow sheet showing an embodiment of the soil pile surplus liquid reuse plant of the present invention. 11...mixing device, 13...separation device, 24...
...Concentration detection device, 25...Cement amount adjustment mechanism,
28...control device.
Claims (1)
土砂成分を分離除去する分離装置１３、及び分離
後のセメント成分を含有する再利用液と追加セメ
ントとを混合する混合装置１１を設けたソイルパ
イル余剰液の再利用プラントであつて、前記再利
用液中のセメント濃度を検出する濃度検出装置２
４を設けるとともに、前記混合装置１１に供給す
る追加セメントの供給量を調整するセメント量調
整機構２５を設け、前記濃度検出装置２４の検出
結果に基いて、前記混合装置１１内でのセメント
濃度が設定範囲内になるように、前記セメント量
調整機構２５による追加セメント供給量を制御す
る制御装置２８を備えてあるソイルパイル余剰液
の再利用プラント。1. Recycling of surplus soil pile liquid, which is equipped with a separation device 13 that separates and removes earth and sand components from the surplus liquid generated during soil pile creation, and a mixing device 11 that mixes additional cement with the reused liquid containing separated cement components. Concentration detection device 2 which is a utilization plant and detects the cement concentration in the reused liquid.
4, and a cement amount adjustment mechanism 25 that adjusts the amount of additional cement supplied to the mixing device 11, and the cement concentration in the mixing device 11 is determined based on the detection result of the concentration detection device 24. A soil pile surplus liquid reuse plant comprising a control device 28 for controlling the amount of additional cement supplied by the cement amount adjusting mechanism 25 so that the amount falls within a set range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24716283A JPS60141917A (en) | 1983-12-28 | 1983-12-28 | Plant reusing extra liquid for production of soil pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24716283A JPS60141917A (en) | 1983-12-28 | 1983-12-28 | Plant reusing extra liquid for production of soil pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60141917A JPS60141917A (en) | 1985-07-27 |
| JPH0115654B2 true JPH0115654B2 (en) | 1989-03-20 |
Family
ID=17159356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24716283A Granted JPS60141917A (en) | 1983-12-28 | 1983-12-28 | Plant reusing extra liquid for production of soil pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60141917A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0663221B2 (en) * | 1989-08-30 | 1994-08-22 | 鹿島建設株式会社 | Reuse method of slurry in ground improvement method |
| JPH05230827A (en) * | 1992-02-21 | 1993-09-07 | Asahi Kiso Kk | Continuous wall constructing method and device thereof |
| JP5558166B2 (en) * | 2010-03-30 | 2014-07-23 | ジェコス株式会社 | Solidifying agent surplus liquid treatment equipment used for soil cement mixing method |
| JP2011208455A (en) * | 2010-03-30 | 2011-10-20 | Gecoss Corp | Solidification agent surplus liquid treatment equipment for use in soil cement mixing method |
| EP3822415A1 (en) * | 2019-11-14 | 2021-05-19 | Keller Holding GmbH | Measuring assembly for a return cement suspension, construction site assembly comprising a measuring structure and method and use |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5719430A (en) * | 1981-05-18 | 1982-02-01 | Osaka Gas Co Ltd | Reclaiming method of waste soil to road construction material |
| JPS5789018A (en) * | 1980-11-25 | 1982-06-03 | Tone Boring Co | Construction work for cut-off wall |
-
1983
- 1983-12-28 JP JP24716283A patent/JPS60141917A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5789018A (en) * | 1980-11-25 | 1982-06-03 | Tone Boring Co | Construction work for cut-off wall |
| JPS5719430A (en) * | 1981-05-18 | 1982-02-01 | Osaka Gas Co Ltd | Reclaiming method of waste soil to road construction material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60141917A (en) | 1985-07-27 |
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