JP2001070991A - Mud solidifying treatment apparatus and method - Google Patents
Mud solidifying treatment apparatus and methodInfo
- Publication number
- JP2001070991A JP2001070991A JP24776099A JP24776099A JP2001070991A JP 2001070991 A JP2001070991 A JP 2001070991A JP 24776099 A JP24776099 A JP 24776099A JP 24776099 A JP24776099 A JP 24776099A JP 2001070991 A JP2001070991 A JP 2001070991A
- Authority
- JP
- Japan
- Prior art keywords
- solidifying agent
- sand
- earth
- density
- mud
- 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.)
- Pending
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Treatment Of Sludge (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高含水掘削土砂を
固化させる固化処理装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solidification treatment apparatus for solidifying highly water-excavated earth and sand.
【０００２】[0002]
【従来の技術】泥土圧シールドでトンネルを掘削した際
に排出される掘削土砂は、流動性があるため、密閉可能
な容器を搭載したベッセル車を用いて搬送している。ま
た、流動性のある泥土の処理方法として、液体（セメン
トミルク）の固化材を泥土に混ぜて処分地に排出する方
法が、特開平７−２４６３９９号に開示されている。2. Description of the Related Art Excavated earth and sand discharged when a tunnel is excavated with a mud pressure shield is transported by using a vessel vehicle equipped with a sealable container because of its fluidity. As a method for treating fluid mud, a method of mixing a solidified liquid (cement milk) with mud and discharging it to a disposal site is disclosed in JP-A-7-246399.
【０００３】[0003]
【発明が解決しようとする課題】ベッセル車は、流動性
のあるものしか搬送できないので、土砂の搬送のためだ
けに用意するのはコストがかかってしまう。しかし、一
般的なダンプトラックでは、掘削土砂から水が滴った
り、掘削土砂が飛散するため、掘削土砂を搬送すること
ができない。また、特開平７−２４６３９９号に開示さ
れている技術は、圧送管で泥土を処分地まで移送するも
のであり、移送可能な距離がかぎられている。また、密
度計が圧送管に並列に設けられているため、土砂の密度
をリアルタイムに、精度良く測定することができない。Since the vehicle can transport only a fluid vehicle, it is costly to prepare only for transporting earth and sand. However, a general dump truck cannot transport excavated earth and sand because water is dripped from the excavated earth and sand is scattered. Further, the technique disclosed in Japanese Patent Application Laid-Open No. 7-246399 is for transferring mud to a disposal site by a pressure feed pipe, and the transferable distance is limited. Further, since the density meter is provided in parallel with the pumping pipe, the density of the earth and sand cannot be accurately measured in real time.
【０００４】そこで、本発明の目的は、ダンプトラック
でも掘削土砂を搬送できるように、高含水掘削土砂を固
化させる固化処理装置および方法を提供することにあ
る。Accordingly, an object of the present invention is to provide a solidification treatment apparatus and method for solidifying high water content excavated soil so that the excavated soil can be transported even by a dump truck.
【０００５】[0005]
【課題を解決するための手段】以上の課題を解決すべく
請求項１記載の発明は、掘削現場から高含水掘削土砂を
ダンプトラックに移送するラインにおいて、高含水掘削
土砂の密度を測定する密度測定装置と、高含水掘削土砂
の流量を測定する流量測定装置と、密度測定装置で得た
密度と、流量測定装置で得た流量から、固化剤の添加量
を演算する演算装置で得た演算値をもとに、ダンプトラ
ックで搬送可能な状態となるように、高含水掘削土砂
に、所定量の固化剤を添加する固化剤添加装置と、を直
列に設けたことを特徴としている。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the invention according to claim 1 is a method for measuring the density of highly hydrated excavated soil in a line for transferring highly hydrated excavated soil from a digging site to a dump truck. A measurement device, a flow measurement device that measures the flow rate of the highly wet excavated earth and sand, and a calculation obtained by a calculation device that calculates the addition amount of the solidifying agent from the density obtained by the density measurement device and the flow rate obtained by the flow measurement device. On the basis of the value, a solidifying agent adding device for adding a predetermined amount of solidifying agent to highly hydrated excavated earth and sand is provided in series so as to be able to be transported by a dump truck.
【０００６】ここで、密度測定装置および流量測定装置
は、常に密度又は流量の計測を行っているものとする。
また、密度測定装置で測定する土砂の密度は、土砂にお
ける砂分含有率とする。Here, it is assumed that the density measuring device and the flow measuring device always measure the density or the flow rate.
The density of the earth and sand measured by the density measuring device is defined as the sand content in the earth and sand.
【０００７】以上のように、請求項１記載の発明によれ
ば、掘削現場から高含水掘削土砂をダンプトラックに移
送するラインに、高含水掘削土砂の密度測定装置および
流量測定装置と、固化剤を添加する固化剤添加装置とを
直列に設けたことにより、移送されている高含水掘削土
砂の密度および流量をリアルタイムで正確に計測できる
ので、演算装置で高含水掘削土砂の状態に合せた固化剤
の添加量を算出することができる。また、演算装置で演
算された量の固化剤を、固化剤添加装置により添加する
ことによって、流動性のある高含水掘削土砂をダンプト
ラックに積載可能な硬さ状態にすることができる。As described above, according to the first aspect of the present invention, the line for transferring the highly hydrated excavated earth and sand from the excavation site to the dump truck is provided with a density measuring device and a flow rate measuring device for the highly hydrated excavated earth and sand, and a solidifying agent. Since the density and flow rate of the highly excavated excavated sediment being transferred can be accurately measured in real time by installing the solidifying agent addition device that adds the water, the solidification in accordance with the state of the highly excavated excavated soil is performed by the arithmetic unit. The addition amount of the agent can be calculated. Further, by adding the amount of the solidifying agent calculated by the arithmetic unit with the solidifying agent adding device, it is possible to make the fluid highly excavated excavated soil with a hardness capable of being loaded on the dump truck.
【０００８】請求項２記載の発明は、掘削現場から高含
水掘削土砂をダンプトラックに移送する間に、密度測定
装置により土砂の密度を測定し、流量測定装置により土
砂の流量を測定し、得られた密度と流量から、演算装置
により固化剤の添加量を演算し、得られた演算値をもと
に、ダンプトラックで搬送可能な状態となるように、固
化剤添加装置により高含水掘削土砂に固化剤を添加する
こと、を特徴としている。According to a second aspect of the present invention, the density of the sediment is measured by a density measuring device and the flow rate of the sediment is measured by a flow rate measuring device while transferring the highly hydrous excavated soil from the excavation site to the dump truck. Based on the density and the flow rate, the amount of the solidifying agent added is calculated by the calculating device, and based on the obtained calculated value, the excavated soil with high water content is excavated by the solidifying agent adding device so that it can be transported by the dump truck. A solidifying agent is added to the mixture.
【０００９】ここで密度測定装置により測定する土砂の
密度は、土砂の砂分含有率とする。Here, the density of the earth and sand measured by the density measuring device is defined as the sand content of the earth and sand.
【００１０】このように、請求項２記載の発明によれ
ば、密度測定装置で測定した土砂の密度と、流量測定装
置で測定した土砂の流量から、演算装置により土砂をダ
ンプトラックで搬送可能な固さにする固化剤の添加量を
演算し、土砂に固化剤を添加することによって、流動性
の高い高含水掘削土砂を固化し、ダンプトラックに積載
可能にすることができる。Thus, according to the second aspect of the present invention, the soil can be transported by the dump truck by the arithmetic unit from the density of the earth and sand measured by the density measuring device and the flow rate of the earth and sand measured by the flow measuring device. By calculating the amount of the solidifying agent to be hardened and adding the solidifying agent to the earth and sand, it is possible to solidify the highly hydrous excavated earth and sand having high fluidity and to load the earth on the dump truck.
【００１１】請求項３記載の発明は、請求項１記載の泥
土固化処理装置または請求項２記載の泥土固化処理方法
であって、固化剤は、高分子系固化剤であることを特徴
としている。According to a third aspect of the present invention, there is provided the mud solidification treatment apparatus according to the first aspect or the mud solidification treatment method according to the second aspect, wherein the solidifying agent is a polymer-based solidifying agent. .
【００１２】請求項４記載の発明は、請求項１記載の泥
土固化処理装置または請求項２記載の泥土固化処理方法
であって、固化剤は、セメント系固化剤、石灰系固化剤
または石膏系固化剤のいずれかであることを特徴として
いる。According to a fourth aspect of the present invention, there is provided the mud solidification treatment apparatus according to the first aspect or the mud solidification treatment method according to the second aspect, wherein the solidifying agent is a cement-based solidifying agent, a lime-based solidifying agent, or a gypsum-based solidifying agent. It is characterized by being one of the solidifying agents.
【００１３】請求項５記載の発明は、請求項１記載の泥
土固化処理装置または請求項２記載の泥土固化処理方法
であって、固化剤は、高分子系固化剤と、セメント系固
化剤、石灰系固化剤または石膏系固化剤のいずれかと、
を混合したものであることを特徴としている。According to a fifth aspect of the present invention, there is provided the mud solidification treatment apparatus according to the first aspect or the mud solidification treatment method according to the second aspect, wherein the solidifying agent is a polymer-based solidifying agent, a cement-based solidifying agent, Either with a lime-based solidification agent or a gypsum-based solidification agent,
Are mixed.
【００１４】請求項６記載の発明は、請求項１記載の泥
土固化処理装置または請求項２記載の泥土固化処理方法
であって、固化剤の最適添加量は、高含水掘削土砂の砂
分含有率をもとに算出することを特徴としている。According to a sixth aspect of the present invention, there is provided the mud solidification treatment apparatus according to the first aspect, or the mud solidification treatment method according to the second aspect, wherein the optimum addition amount of the solidifying agent is such that the sand content of the highly hydrous excavated soil is included. It is characterized in that it is calculated based on the rate.
【００１５】請求項７記載の発明は、請求項３記載の泥
土固化処理装置または泥土固化処理方法であって、高分
子系固化剤の添加量は、土砂体積に対し、ほぼ３ｋｇｆ
／ｍ3以上添加すること、を特徴としている。According to a seventh aspect of the present invention, there is provided the mud solidifying apparatus or the mud solidifying method according to the third aspect, wherein the amount of the polymer-based solidifying agent is approximately 3 kgf with respect to the volume of the earth and sand.
/ M 3 or more.
【００１６】このように、請求項７記載の発明によれ
ば、土砂体積に対し、高分子系固化剤を、土砂の密度
（砂分含有率）を基に算出した添加量である、ほぼ３ｋ
ｇｆ／ｍ 3以上を添加することにより、高含水掘削土砂
を、確実にフォールコーン沈下量が５ｍｍ以下となる固
さまで固化することができる。Thus, according to the invention of claim 7,
For example, the polymer-based solidifying agent is
(The sand content), which is approximately 3k
gf / m ThreeBy adding the above, high water content drilling soil
The fall cone sinking amount to 5 mm or less.
It can be solidified.
【００１７】請求項８記載の発明は、請求項４記載の泥
土固化処理装置または泥土固化処理方法であって、セメ
ント系固化剤、石灰系固化剤または石膏系固化剤の添加
量は、土砂体積に対し、ほぼ３０ｋｇｆ／ｍ3以上添加
することを特徴としている。The invention according to claim 8 is the mud solidification treatment apparatus or the mud solidification treatment method according to claim 4, wherein the cement-based solidification agent, the lime-based solidification agent or the gypsum-based solidification agent is added in an amount of earth and sand. In contrast, it is characterized by adding at least about 30 kgf / m 3 .
【００１８】請求項９記載の発明は、請求項５記載の泥
土固化処理装置または泥土固化処理方法であって、高分
子系固化剤の添加量は、土砂体積に対し、ほぼ１．５ｋ
ｇｆ／ｍ3以上添加し、セメント系固化剤、石灰系固化
剤または石膏系固化剤は、土砂体積に対し、ほぼ１５ｋ
ｇｆ／ｍ3以上添加することを特徴としている。According to a ninth aspect of the present invention, there is provided the mud solidification treatment apparatus or the mud solidification treatment method according to the fifth aspect, wherein the amount of the polymer-based solidifying agent is approximately 1.5 k
gf / m 3 or more, and the cement-based solidifying agent, the lime-based solidifying agent or the gypsum-based solidifying agent is approximately 15 k
It is characterized in that gf / m 3 or more is added.
【００１９】[0019]
【発明の実施の形態】以下に、本発明に係る泥土固化処
理装置およびその方法の実施の形態例を図１から図４に
基づいて説明する。先ず、図１は泥土固化処理装置のブ
ロック図である。１は泥土圧シールドであり、２は泥土
圧シールド１からダンプトラック３へ土砂を圧送するポ
ンプである。４は圧送されている土砂の流量を測定する
流量計であり、５は圧送されている土砂の密度を測定す
る密度計である。ポンプ２、流量計４および密度計５は
圧送管６により、直列に連通されており、圧送管６は混
合機７に連通している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a mud solidification treatment apparatus and method according to the present invention will be described below with reference to FIGS. First, FIG. 1 is a block diagram of a mud solidification treatment device. 1 is a mud pressure shield, and 2 is a pump for pumping earth and sand from the mud pressure shield 1 to the dump truck 3. Numeral 4 is a flow meter for measuring the flow rate of the sediment being pumped, and numeral 5 is a density meter for measuring the density of the sediment being pumped. The pump 2, the flow meter 4 and the density meter 5 are connected in series by a pumping tube 6, and the pumping tube 6 communicates with a mixer 7.
【００２０】混合機７には、固化剤添加装置８も連通し
ている。固化剤添加装置８はバルブ９を備えており、こ
のバルブ９の開度を調節することによって、固化剤添加
装置８に充填されている固化剤１１の土砂への添加量を
調節することができるようになっている。ここで、固化
剤添加装置８に充填されている固化剤１１としては、高
含水汚泥用高分子系固化剤（住友精化 アクリアース
（登録商標））などの、固形の高分子系の固化剤を用い
るものとする。The mixer 7 is also connected to a solidifying agent adding device 8. The solidifying agent adding device 8 is provided with a valve 9, and by adjusting the opening of the valve 9, the amount of the solidifying agent 11 filled in the solidifying agent adding device 8 to the earth and sand can be adjusted. It has become. Here, as the solidifying agent 11 filled in the solidifying agent adding device 8, a solid high molecular solidifying agent such as a high molecular weight sludge high molecular type solidifying agent (Sumitomo Seika Aclearase (registered trademark)) is used. Shall be used.
【００２１】流量計４は、圧送管６中を移送される土砂
の流量を常時測定し、密度計５は圧送管６中を移送され
る土砂の密度を常時測定する。ここで、密度計５が測定
する土砂の密度とは、排出された土砂の砂分含有率であ
る。流量計４および密度計５は演算装置１０に接続して
おり、流量計４は測定によって得た流量データを、密度
計５は測定によって得た密度データを演算装置１０へ出
力している。The flow meter 4 constantly measures the flow rate of the earth and sand transferred through the pressure pipe 6, and the density meter 5 constantly measures the density of the earth and sand transferred through the pressure pipe 6. Here, the density of the earth and sand measured by the density meter 5 is the sand content of the discharged earth and sand. The flow meter 4 and the density meter 5 are connected to the arithmetic unit 10, and the flow meter 4 outputs the flow rate data obtained by the measurement, and the density meter 5 outputs the density data obtained by the measurement to the arithmetic unit 10.
【００２２】演算装置１０は入力された密度データをも
とに、単位流量当たりの固化剤添加量を演算し、この得
られた単位流量当たりの添加量と、流量データをもと
に、実際に土砂に添加すべき固化剤１１の量を算出す
る。演算装置１０は固化剤添加装置８のバルブにも接続
しており、算出した量の固化剤１１が固化剤添加装置８
から添加されるように、バルブ９の開度を制御してい
る。The arithmetic unit 10 calculates the amount of the solidifying agent added per unit flow rate based on the input density data, and actually calculates the added amount per unit flow rate and the flow rate data based on the obtained addition amount per unit flow rate. The amount of the solidifying agent 11 to be added to the earth and sand is calculated. The arithmetic unit 10 is also connected to a valve of the solidifying agent adding device 8 so that the calculated amount of the solidifying agent 11
The opening degree of the valve 9 is controlled so as to be added.
【００２３】次に、固化剤添加量の演算方法を説明す
る。泥土圧シールドによる掘削で排出される土砂のフォ
ールコーン沈下量（以下Ｆｃ値と言う。）は８〜９ｍｍ
である。ここで、Ｆｃ値とは、円錐状のコーンをある高
さから土砂上に落下させ、コーンが土砂に沈下した深さ
で土砂の固さを表すものであり、Ｆｃ値が大きい土砂ほ
ど、柔らかい土砂である。Ｆｃ値が８ｍｍ以上の土砂
は、流動性に富み、ベッセル車等の密閉容器を用いて搬
送しなくてはならない。ダンプトラックで搬送可能な土
砂の固さは、Ｆｃ＝５ｍｍ以下である。図２に、掘削土
砂の固化剤１１添加量と、Ｆｃ値との関係のグラフを示
す。このグラフから、Ｆｃ値が８ｍｍ以上の掘削土砂に
は、土砂体積に対し、約３ｋｇｆ／ｍ3以上添加すれ
ば、Ｆｃ値が５ｍｍ以下となることがわかる。図３は、
排出された土砂の密度と、土砂のＦｃ値を５ｍｍとする
のに必要な固化剤の最小添加量Ｋとの関係を示すグラフ
である。図中（１）式は、掘削作業前に試験的に様々な
密度の土砂を採取し、固化剤１１を混合して得た試験値
である。しかし、図３中に示した本掘進実績のように、
掘削作業中に本装置を用いて土砂に固化剤１１を混合す
ると、混合効率が低下し、試験値より多量の固化剤１１
が必要であった。そこで、試験値（１）式に１．３をか
けて補正した（２）式を基に、演算装置１０で土砂の密
度に対する単位流量当たりの固化剤１１の添加量を算出
する。さらに、この添加量に流量をかけ、実際に添加す
る固化剤１１の量を算出する。Next, a method of calculating the amount of the solidifying agent added will be described. The fall cone subsidence amount (hereinafter referred to as Fc value) of the earth and sand discharged by the excavation by the mud pressure shield is 8 to 9 mm.
It is. Here, the Fc value indicates the hardness of the earth and sand at a depth at which the cone is dropped on the earth and sand from a certain height and the cone sinks into the earth and sand. It is earth and sand. Earth and sand having an Fc value of 8 mm or more is rich in fluidity and must be transported using a closed container such as a vessel. The hardness of the earth and sand that can be transported by the dump truck is Fc = 5 mm or less. FIG. 2 is a graph showing the relationship between the amount of the solidifying agent 11 added to the excavated earth and sand and the Fc value. From this graph, it can be seen that the excavated earth and sand having an Fc value of 8 mm or more has an Fc value of 5 mm or less when added to the earth and sand volume by about 3 kgf / m 3 or more. FIG.
It is a graph which shows the relationship between the density of the discharged earth and sand, and the minimum addition amount K of the solidifying agent required to make Fc value of earth and sand 5 mm. Equation (1) in the figure is a test value obtained by sampling earth and sand of various densities before the excavation work and mixing the solidifying agent 11. However, as shown in the actual excavation results shown in FIG.
When the solidifying agent 11 is mixed with earth and sand using the present apparatus during excavation work, the mixing efficiency is reduced, and the solidifying agent 11 is larger than the test value.
Was needed. Therefore, the arithmetic unit 10 calculates the amount of the solidifying agent 11 added per unit flow rate with respect to the density of earth and sand, based on the equation (2) corrected by multiplying the test value equation (1) by 1.3. Further, the flow rate is multiplied by the added amount to calculate the amount of the solidifying agent 11 to be actually added.
【００２４】次に、泥土固化処理方法を説明する。泥土
圧シールド１が地盤を掘削すると、高含水掘削土砂は泥
土圧シールド１のスクリューコンベヤ１ａを伝って、ポ
ンプ２に達する。ポンプ２は、高含水掘削土砂を圧送管
６に送り出し、高含水掘削土砂は圧送管６内をとおり、
流量計４および密度計５を経て、混合機７へ移送され
る。流量計４は移送されてきた高含水掘削土砂の流量を
測定し、演算装置１０に流量データを出力する。密度計
５は移送されてきた高含水掘削土砂の密度を測定し、演
算装置１０に密度データを出力する。演算装置１０は、
各測定装置から入力されたデータを基に、固化剤１１の
添加量を算出し、算出した量を添加できるように、固化
剤添加装置８のバルブ９を開く。固化剤添加装置８中の
固化剤１１は開かれたバルブ９から、混合機７へ加えら
れ、混合機７内で高含水掘削土砂と混合される。固化剤
１１と混合された高含水掘削土砂は固化し、ベルトコン
ベヤ１２により混合機７からダンプトラック３に運ば
れ、ダンプトラック３で処分地等へ搬送される。Next, a mud solidification treatment method will be described. When the mud pressure shield 1 excavates the ground, the high water content excavated soil reaches the pump 2 via the screw conveyor 1 a of the mud pressure shield 1. The pump 2 sends the highly hydrated excavated soil to the pumping pipe 6, and the highly hydrated excavated soil passes through the pumping pipe 6,
It is transferred to the mixer 7 via the flow meter 4 and the density meter 5. The flow meter 4 measures the flow rate of the transferred highly wet excavated earth and sand, and outputs flow rate data to the arithmetic unit 10. The density meter 5 measures the density of the transferred high water content excavated earth and sand, and outputs the density data to the arithmetic unit 10. The arithmetic unit 10
Based on the data input from each measuring device, the addition amount of the solidifying agent 11 is calculated, and the valve 9 of the solidifying agent adding device 8 is opened so that the calculated amount can be added. The solidifying agent 11 in the solidifying agent adding device 8 is added to the mixer 7 from the opened valve 9, and is mixed with the high-water content excavated soil in the mixer 7. The high water content excavated earth and sand mixed with the solidifying agent 11 is solidified, conveyed from the mixer 7 to the dump truck 3 by the belt conveyor 12, and conveyed to the disposal site or the like by the dump truck 3.
【００２５】図４は実際の掘削作業における、掘削距離
と高含水掘削土砂の密度およびバルブ９の開度の関係を
示したグラフである。FIG. 4 is a graph showing the relationship between the excavation distance, the density of the highly hydrated excavated earth and sand, and the opening of the valve 9 in an actual excavation operation.
【００２６】このように、上記実施の形態の泥土固化処
理装置およびその方法によれば、流動性の高い高含水掘
削土砂に固化剤１１を添加することにより、高含水掘削
土砂を固化し、ダンプトラック３でも搬送可能な固さに
することができる。泥土圧シールド１から高含水掘削土
砂をダンプトラック３へ移送するライン（圧送管６）上
に流量計４と密度計５を直列に設けたことにより、移送
されている高含水掘削土砂の流量および密度をリアルタ
イムで正確に測定することができ、高含水掘削土砂の状
態に適した固化剤１１の添加量を算出し、添加すること
ができる。また、密度計で土砂の砂分含有量を測定する
ことにより、土砂の含水率を測定する場合に比べ、土砂
の性状を正確に把握することができる。As described above, according to the mud solidification treatment apparatus and method of the above-described embodiment, by adding the solidifying agent 11 to the highly fluid excavated soil with high fluidity, the excavated soil with high moisture content is solidified and dumped. The truck 3 can be made hard enough to be transported. The flow meter 4 and the density meter 5 are provided in series on a line (pumping pipe 6) for transferring the highly hydrated excavated soil from the mud pressure shield 1 to the dump truck 3, so that the flow rate of the transferred highly hydrated excavated soil is improved. The density can be accurately measured in real time, and the addition amount of the solidifying agent 11 suitable for the state of high water content excavated earth and sand can be calculated and added. Also, by measuring the sand content of the earth and sand with a densitometer, the properties of the earth and sand can be grasped more accurately than when measuring the water content of the earth and sand.
【００２７】なお、以上の実施の形態例においては、掘
削機として泥土圧シールドを用いたが、本発明はこれに
限定されるものではなく、高含水の土砂を排出する掘削
機であれば良い。また、固化剤は高分子系固化剤のほ
か、セメント系、石灰系、石膏系のものあり、これらを
単独で又は混合して用いることも可能であるが、セメン
ト系、石灰系、石膏系の固化剤は高分子系固化剤に比
べ、添加量が約１０倍となる。すなわち、これらの固化
剤をそれぞれ単独で用いる場合は、高分子系固化剤では
３ｋｇｆ／ｍ3、セメント系固化剤では３０ｋｇｆ／
ｍ3、石灰系固化剤では３０ｋｇｆ／ｍ3、石膏系固化剤
では３０ｋｇｆ／ｍ3となる。また、混合する場合は、
高分子系１．５ｋｇｆ／ｍ3＋セメント系１５ｋｇｆ／
ｍ3、高分子系１．５ｋｇｆ／ｍ3＋石灰系１５ｋｇｆ／
ｍ3または高分子系１．５ｋｇｆ／ｍ3＋石膏系１５ｋｇ
ｆ／ｍ3と言うようになる。その他、具体的な細部構造
等についても適宜に変更可能であることは勿論である。In the above embodiment, a mud pressure shield is used as an excavator. However, the present invention is not limited to this, and any excavator that discharges highly hydrated earth and sand may be used. . In addition, the solidifying agent is, other than the polymer-based solidifying agent, cement-based, lime-based, and gypsum-based ones, and these can be used alone or in combination, but cement-based, lime-based, and gypsum-based The amount of the solidifying agent added is about 10 times that of the polymer solidifying agent. That is, when each of these solidifying agents is used alone, 3 kgf / m 3 for the polymer solidifying agent and 30 kgf / m 3 for the cement solidifying agent.
m 3, the lime solidifying agent 30 kgf / m 3, a 30 kgf / m 3 in the gypsum-based solidifying agent. Also, when mixing
1.5 kgf / m 3 of polymer type + 15 kgf / of cement type
m 3 , polymer type 1.5 kgf / m 3 + lime type 15 kgf /
m 3 or polymeric 1.5 kgf / m 3 + gypsum-based 15kg
f / m 3 . In addition, it is needless to say that specific detailed structures and the like can be appropriately changed.
【００２８】[0028]
【発明の効果】以上のように、請求項１記載の発明に係
る泥土固化処理装置によれば、移送されている土砂の密
度を測定する密度測定装置と、流量を測定する流量測定
装置とを、掘削現場からダンプトラックに土砂を移送す
るライン上に直列に設けたことにより、移送されている
土砂の密度および流量をリアルタイムで正確に計測でき
る。これにより、演算装置は得られたデータを基に、土
砂の状態に適した添加量を算出することができ、固化剤
添加装置で土砂に適した添加量の固化剤を添加すること
により、高含水掘削土砂をダンプトラックに積載可能に
することができる。As described above, according to the mud solidification treatment apparatus according to the first aspect of the present invention, the density measuring apparatus for measuring the density of the sediment transported and the flow rate measuring apparatus for measuring the flow rate. Since the sediment is provided in series on the line for transferring the earth and sand from the excavation site to the dump truck, the density and flow rate of the earth and sand being transferred can be accurately measured in real time. Thereby, the arithmetic unit can calculate the addition amount suitable for the condition of the earth and sand based on the obtained data. The wet excavated soil can be loaded on the dump truck.
【００２９】請求項２記載の発明に係る泥土固化処理方
法によれば、密度測定装置および流量測定装置で測定し
た、掘削現場からダンプトラックへ移送されている土砂
の密度と流量から、土砂をダンプトラックで搬送できる
固さにするのに必要な固化剤の量を算出し、土砂に添加
することによって、流動性の高い高含水掘削土砂を固化
し、ダンプトラックでも搬送可能にすることができる。According to the method for solidifying mud according to the second aspect of the present invention, the sediment is dumped from the density and the flow rate of the sediment transferred from the excavation site to the dump truck, measured by the density measuring device and the flow measuring device. By calculating the amount of the solidifying agent necessary to make the material conveyable by truck and adding it to the earth and sand, it is possible to solidify highly fluid excavated earth with high fluidity and to make it conveyable even on a dump truck.
【００３０】請求項７記載の発明に係る泥土固化処理装
置およびその方法によれば、土砂体積に対し、土砂の密
度（砂分含有率）から算出したほぼ３ｋｇｆ／ｍ3以上
の高分子系固化剤を添加することにより、高含水掘削土
砂をフォールコーン沈下量が５ｍｍ以下となる固さまで
確実に固化することができる。According to the apparatus and method for solidifying mud according to the seventh aspect of the present invention, the solidification of a polymer based on the density of soil and sand (content of sand) is approximately 3 kgf / m 3 or more with respect to the volume of earth and sand. By adding the agent, the highly water-excavated excavated earth and sand can be surely solidified until the fall cone subsidence amount becomes 5 mm or less.
【図１】本発明を適用した一例としての泥土固化処理装
置の構成を示すブロック図である。FIG. 1 is a block diagram showing a configuration of a mud solidification processing apparatus as an example to which the present invention is applied.
【図２】掘削土砂の固化剤１１添加量と、Ｆｃ値との関
係を示すグラフである。FIG. 2 is a graph showing a relationship between an amount of solidifying agent 11 added to excavated earth and sand and an Fc value.
【図３】排出された土砂の密度と、土砂のＦｃ値を５ｍ
ｍとするのに必要な固化剤の最小添加量Ｋとの関係を示
すグラフである。FIG. 3 shows the density of discharged earth and sand and the Fc value of the earth and sand being 5 m.
6 is a graph showing the relationship between the minimum addition amount K of the solidifying agent required to obtain m.
【図４】実際の掘削作業における、掘削距離と土砂の密
度およびバルブ９の開度の関係を示したグラフである。FIG. 4 is a graph showing a relationship between an excavation distance, a density of earth and sand, and an opening of a valve 9 in an actual excavation operation.
【符号の説明】 １ 泥土圧シールド １ａスクリューコンベヤ ２ ポンプ ３ ダンプトラック ４ 流量計 ５ 密度計 ６ 圧送管 ７ 混合機 ８ 固化剤添加装置 ９ バルブ １０演算装置 １１固化剤 １２ベルトコンベヤ[Description of Signs] 1 Mud Pressure Shield 1a Screw Conveyor 2 Pump 3 Dump Truck 4 Flow Meter 5 Density Meter 6 Pressure Pipe 7 Mixer 8 Solidifying Agent Addition Device 9 Valve 10 Computing Device 11 Solidifying Agent 12 Belt Conveyor
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０９Ｋ 17/48 Ｃ０９Ｋ 17/48 Ｐ Ｅ０２Ｄ 3/12 １０２ Ｅ０２Ｄ 3/12 １０２ Ｅ０２Ｆ 7/00 Ｅ０２Ｆ 7/00 Ｄ // Ｃ０９Ｋ 103:00 Ｆターム(参考） 2D040 AB07 CA01 CA03 CA10 EB04 FA00 4D059 AA09 BG00 CB04 DA04 DA06 DA66 DB11 EA01 EA02 EB11 4H026 CA01 CA02 CA04 CB08 CC06──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C09K 17/48 C09K 17/48 P E02D 3/12 102 E02D 3/12 102 E02F 7/00 E02F 7/00 D // C09K 103: 00 F term (reference) 2D040 AB07 CA01 CA03 CA10 EB04 FA00 4D059 AA09 BG00 CB04 DA04 DA06 DA66 DB11 EA01 EA02 EB11 4H026 CA01 CA02 CA04 CB08 CC06
Claims (9)
ックに移送するラインにおいて、 高含水掘削土砂の密度を測定する密度測定装置と、 高含水掘削土砂の流量を測定する流量測定装置と、 密度測定装置で得た密度と、流量測定装置で得た流量か
ら、固化剤の添加量を演算する演算装置で得た演算値を
もとに、ダンプトラックで搬送可能な状態となるよう
に、高含水掘削土砂に、所定量の固化剤を添加する固化
剤添加装置と、を直列に設けたことを特徴とする泥土固
化処理装置。1. A density measuring device for measuring the density of high water excavated sediment, a flow measuring device for measuring a flow rate of high water excavated sediment, and a density measuring device. From the density obtained by the measuring device and the flow rate obtained by the flow rate measuring device, the amount of the solidifying agent is calculated based on the calculated value obtained by the calculating device. A mud solidification treatment apparatus comprising: a solidifying agent adding device for adding a predetermined amount of a solidifying agent to water-containing excavated earth and sand;
ックに移送する間に、 密度測定装置により土砂の密度を測定し、 流量測定装置により土砂の流量を測定し、 得られた密度と流量から、演算装置により固化剤の添加
量を演算し、 得られた演算値をもとに、ダンプトラックで搬送可能な
状態となるように、固化剤添加装置により高含水掘削土
砂に固化剤を添加すること、を特徴とする泥土固化処理
方法。2. A method of measuring the density of sediment with a density measuring device while transferring high water content excavated earth and sand from a drilling site to a dump truck, measuring a flow rate of sediment with a flow rate measuring device, The amount of the solidifying agent added is calculated by the arithmetic unit, and the solidifying agent is added to the highly hydrated excavated soil by the solidifying agent adding device based on the calculated value so as to be able to be transported by the dump truck. And a mud solidification treatment method.
求項２記載の泥土固化処理方法。3. The mud solidification treatment apparatus according to claim 1, wherein the solidifying agent is a polymer solidification agent.
剤または石膏系固化剤のいずれかであること、 を特徴とする請求項１記載の泥土固化処理装置または請
求項２記載の泥土固化処理方法。4. The mud solidification treatment apparatus according to claim 1, wherein the solidifying agent is one of a cement-based solidifying agent, a lime-based solidifying agent, and a gypsum-based solidifying agent. Solidification treatment method.
いずれかと、 を混合したものであること、 を特徴とする請求項１記載の泥土固化処理装置または請
求項２記載の泥土固化処理方法。5. The solidifying agent according to claim 1, wherein the solidifying agent is a mixture of a polymer-based solidifying agent, and one of a cement-based solidifying agent, a lime-based solidifying agent, and a gypsum-based solidifying agent. 3. The mud solidification treatment method according to claim 2, or the mud solidification treatment method according to claim 2.
求項２記載の泥土固化処理方法。6. The mud solidification treatment apparatus according to claim 1, wherein the optimum addition amount of the solidifying agent is calculated on the basis of the sand content of the high water content excavated earth and sand. Solidification treatment method.
と、 を特徴とする請求項３記載の泥土固化処理装置または泥
土固化処理方法。7. The mud solidification treatment apparatus or method according to claim 3, wherein the amount of the polymer-based solidifying agent is about 3 kgf / m 3 or more based on the volume of the earth and sand.
膏系固化剤の添加量は、 土砂体積に対し、ほぼ３０ｋｇｆ／ｍ3以上添加するこ
と、 を特徴とする請求項４記載の泥土固化処理装置または泥
土固化処理方法。8. The clay solidification according to claim 4, wherein the cement-based solidification agent, the lime-based solidification agent or the gypsum-based solidification agent is added in an amount of about 30 kgf / m 3 or more based on the volume of the earth and sand. Treatment equipment or mud solidification treatment method.
し、ほぼ１．５ｋｇｆ／ｍ3以上添加し、 セメント系固化剤、石灰系固化剤または石膏系固化剤
は、土砂体積に対し、ほぼ１５ｋｇｆ／ｍ3以上添加す
ること、 を特徴とする請求項５記載の泥土固化処理装置または泥
土固化処理方法。9. The amount of the polymer-based solidifying agent added is approximately 1.5 kgf / m 3 or more based on the volume of the earth and sand. The cement-based solidifying agent, the lime-based solidifying agent or the gypsum-based solidifying agent is added to the volume of the earth and sand. against approximately 15 kgf / m 3 adding more, mud solidification device or mud solidification processing method according to claim 5, wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24776099A JP2001070991A (en) | 1999-09-01 | 1999-09-01 | Mud solidifying treatment apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24776099A JP2001070991A (en) | 1999-09-01 | 1999-09-01 | Mud solidifying treatment apparatus and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001070991A true JP2001070991A (en) | 2001-03-21 |
Family
ID=17168265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24776099A Pending JP2001070991A (en) | 1999-09-01 | 1999-09-01 | Mud solidifying treatment apparatus and method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001070991A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2386890A (en) * | 2002-02-05 | 2003-10-01 | Huning Umwelttechnik Gmbh & Co | Holding device for sewage sludge provided with filling means for a vehicle |
| CN105233741A (en) * | 2015-11-03 | 2016-01-13 | 浙江海洋学院 | Experimental apparatus for curing and proportioning depositing silt in channel |
| CN105271631A (en) * | 2015-11-03 | 2016-01-27 | 浙江海洋学院 | Wharf deposited sludge curing proportioning experimental apparatus |
| CN105330126A (en) * | 2015-11-03 | 2016-02-17 | 舟山市智海技术开发有限公司 | Port settled sludge curing matching experiment device |
| CN112129815A (en) * | 2020-09-27 | 2020-12-25 | 盾构及掘进技术国家重点实验室 | Intelligent rock slag detection system of double-mode shield spiral conveyor |
-
1999
- 1999-09-01 JP JP24776099A patent/JP2001070991A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2386890A (en) * | 2002-02-05 | 2003-10-01 | Huning Umwelttechnik Gmbh & Co | Holding device for sewage sludge provided with filling means for a vehicle |
| CN105233741A (en) * | 2015-11-03 | 2016-01-13 | 浙江海洋学院 | Experimental apparatus for curing and proportioning depositing silt in channel |
| CN105271631A (en) * | 2015-11-03 | 2016-01-27 | 浙江海洋学院 | Wharf deposited sludge curing proportioning experimental apparatus |
| CN105330126A (en) * | 2015-11-03 | 2016-02-17 | 舟山市智海技术开发有限公司 | Port settled sludge curing matching experiment device |
| CN112129815A (en) * | 2020-09-27 | 2020-12-25 | 盾构及掘进技术国家重点实验室 | Intelligent rock slag detection system of double-mode shield spiral conveyor |
| CN112129815B (en) * | 2020-09-27 | 2024-03-15 | 盾构及掘进技术国家重点实验室 | Intelligent rock slag detection system of double-mode shield spiral conveyor |
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