JPH1143967A - Manufacture of fluidized treated soil for civil work and device therefor - Google Patents
Manufacture of fluidized treated soil for civil work and device thereforInfo
- Publication number
- JPH1143967A JPH1143967A JP20017797A JP20017797A JPH1143967A JP H1143967 A JPH1143967 A JP H1143967A JP 20017797 A JP20017797 A JP 20017797A JP 20017797 A JP20017797 A JP 20017797A JP H1143967 A JPH1143967 A JP H1143967A
- Authority
- JP
- Japan
- Prior art keywords
- soil
- tank
- treated
- water
- muddy 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.)
- Granted
Links
Landscapes
- Accessories For Mixers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、建設現場において
発生した残土を施工後の埋め戻し、構造物への裏込め、
空洞部への充填などに供するために、その残土に水また
は泥水と、固化材とを混合してそれを流動化させる、土
工事用流動化処理土（以下、流動化処理土という）の製
造方法および、その方法の実施のための装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to backfilling of surplus soil generated at a construction site after construction, backfilling into a structure,
Manufacture of fluidized soil for earthworks (hereinafter referred to as fluidized soil), in which water or muddy water and a solidifying material are mixed into the remaining soil and fluidized to provide for filling in hollows, etc. The invention relates to a method and an apparatus for carrying out the method.
【０００２】[0002]
【従来の技術】建設現場において施工後の埋め戻し、裏
込め、充填などを行うため、その現場で発生した残土
を、水または泥水および、セメントなどの固化材と混合
して流動化させた流動化処理土が最近注目され、これら
の作業に供されるようになってきている。2. Description of the Related Art In order to perform backfilling, backfilling, filling, and the like after construction at a construction site, the remaining soil generated at the site is mixed with water or muddy water and a solidifying material such as cement to fluidize the fluid. Chemically treated soil has recently attracted attention and is being used for these tasks.
【０００３】流動化処理土は、ある建設現場で発生した
残土または、それに他の現場などから搬入した残土を加
えたものを被処理土とし、その被処理土と、水または、
粘土、シルトなどを所定の比率で調整した泥水と、セメ
ントなどの固化材とを混練して製造する。[0003] The fluidized soil is a soil to be treated, which is obtained by adding surplus soil generated at a certain construction site or surplus soil brought in from another site or the like.
It is manufactured by kneading muddy water in which clay, silt and the like are adjusted at a predetermined ratio, and a solidifying material such as cement.
【０００４】このとき、被処理土にはガラ、礫などの異
物が含まれている場合があり、流動化処理土の製造に際
しては、予めこれら異物を除去する必要がある。そのた
め、まず被処理土のふるい分けを行って異物を除去す
る。[0004] At this time, the soil to be treated may contain foreign matters such as waste and gravel, and it is necessary to remove these foreign substances in advance when manufacturing the fluidized treated soil. Therefore, first, the soil to be treated is sieved to remove foreign matter.
【０００５】また、地山強度などの所定の性質を有する
流動化処理土を得るために、製造の際には特に被処理
土、調整泥水、固化材の成分、重量比などの細かい調整
が必要となる。Further, in order to obtain a fluidized soil having predetermined properties such as ground strength, it is necessary to make fine adjustments to the soil to be treated, the adjusted muddy water, the components of the solidified material, the weight ratio, and the like, particularly during production. Becomes
【０００６】さらに、現場においては製造した流動化処
理土を直ちに打設するため、連続的な製造を行うことが
望ましい。[0006] Furthermore, in order to immediately cast the manufactured fluidized soil at the site, it is desirable to perform continuous manufacturing.
【０００７】図11は、上記の問題点を改善すべく本願発
明者が案出した流動化処理土製造装置を示す。この装置
による流動化処理土の製造手順は以下の通りである。ま
ず、泥水作製用の被処理土を解泥機47のホッパー48に投
入し、回転するエンドレスチェーン49に設けたプレート
50と、排出スリット51上で回転する攪拌羽根52とによっ
てその被処理土からガラ、礫などの異物を除去すると共
に、水を加えてその被処理土を解泥し、所定の密度の泥
水を作製した後、この泥水をポンプ53で圧送し、スクリ
ーン54および調泥槽55を経てポンプ56により混練機57上
に設置した泥水タンク58へ送る。その後、その泥水タン
ク58の下部に設置した、回転数を制御したロータ59によ
り時間当たり所定量の泥水を泥水タンク58から混練槽65
に投入する。一方、被処理土を、図示しない建設機械の
バケットに設けた攪拌機で、そこからガラ、礫などを除
去した後、もう一つのホッパー60へ投入する。次いでそ
の被処理土を、ホッパー60の下部に設置したスクリュー
コンベヤ61により一定の速度で排出し、ベルトコンベヤ
62によって混練槽65上に設けた被処理土タンク63へ送
る。その後、被処理土タンク63の下部に設置した、これ
も回転数を制御したロータ64により時間当たり所定量の
被処理土を、被処理土タンク63から上記混練槽65へ投入
する。そして混練槽65に投入した泥水および被処理土
を、混練槽65に設けた二軸攪拌機66により混練し、これ
に所定量の固化材を固化材タンク67よりスクリューコン
ベヤ68で供給し、さらに混練して流動化処理土を製造す
る。製造した流動化処理土はポンプ69により、流量計70
を経て圧送し、埋戻し、裏込などのために打設する。FIG. 11 shows a fluidized soil production apparatus devised by the present inventor in order to improve the above problem. The procedure for producing fluidized soil by this apparatus is as follows. First, the soil to be treated for producing muddy water is put into a hopper 48 of a de-pulverizer 47, and a plate provided on a rotating endless chain 49 is provided.
50 and the stirring blades 52 rotating on the discharge slit 51 remove foreign substances such as looseness and gravel from the soil to be treated, add water to delaminate the soil to be treated, and remove muddy water having a predetermined density. After the preparation, this muddy water is pumped by a pump 53, and is sent to a muddy water tank 58 installed on a kneader 57 by a pump 56 through a screen 54 and a mud conditioning tank 55. Thereafter, a predetermined amount of mud per hour is supplied from the mud tank 58 to the kneading tank 65 by a rotor 59 having a controlled rotation speed, which is installed below the mud tank 58.
To On the other hand, the soil to be treated is removed by a stirrer provided on a bucket of a construction machine (not shown) from the hopper 60 after removing waste and gravels therefrom. Next, the soil to be treated is discharged at a constant speed by a screw conveyor 61 installed at a lower portion of the hopper 60, and the belt conveyor is discharged.
By 62, it is sent to the soil tank 63 to be treated provided on the kneading tank 65. After that, a predetermined amount of soil to be treated per hour is put into the kneading tank 65 from the soil tank 63 by the rotor 64, which is also installed at the lower part of the soil tank 63 and also controls the rotation speed. The muddy water and the soil to be treated put into the kneading tank 65 are kneaded by a twin-screw stirrer 66 provided in the kneading tank 65, and a predetermined amount of the solidified material is supplied from a solidified material tank 67 by a screw conveyor 68, and further kneaded. To produce fluidized soil. The fluidized soil produced was pumped by a flow meter 70
And then put in for backfilling, backing, etc.
【０００８】この装置によれば、泥水の比重および固化
材の投入量を高精度で制御可能である。しかし、この装
置では被処理土の密度を測定することが困難であり、そ
のため流動化処理土の製造に際しては、予め被処理土の
投入量の概略値を設定しておき、その後製造した流動化
処理土の密度を測定して、その値から被処理土の投入量
を制御する。従って流動化処理土の品質（密度など）の
ばらつきが大きくなり、かつ製造量も一定とならないと
いう問題がある。According to this device, the specific gravity of the muddy water and the amount of the solidified material can be controlled with high accuracy. However, with this apparatus, it is difficult to measure the density of the soil to be treated. Therefore, when producing the fluidized soil, an approximate value of the input amount of the soil to be treated is set in advance, and then the fluidized soil produced is manufactured. The density of the treated soil is measured, and the amount of the soil to be treated is controlled based on the measured density. Therefore, there is a problem that the quality (density and the like) of the fluidized soil greatly varies and the production amount is not constant.
【０００９】また、この製造装置においては、被処理土
を供給する攪拌機付きバケットが特殊な部品であるた
め、入手が容易ではないという問題や、装置構成部品の
数が多く、現場での設置および組み立てに時間を要し、
かつ設置面積が大きいという問題もある。Further, in this manufacturing apparatus, since the bucket with the stirrer for supplying the soil to be treated is a special part, it is not easy to obtain, and the number of component parts of the apparatus is large. Takes time to assemble,
There is also a problem that the installation area is large.
【００１０】[0010]
【発明が解決しようとする課題】それ故、本発明は、土
工事用の流動化処理土の製造において、所望の性質（密
度、地山強度など）を得るために被処理土、泥水、固化
材の成分、重量比などの細かい成分調整を行い、また製
造から打設までの工程を連続的かつ効率的に行うことが
できる製造方法およびその装置の提供を目的とする。SUMMARY OF THE INVENTION Therefore, the present invention relates to a method for producing a fluidized soil for earthwork, in order to obtain desired properties (density, ground strength, etc.) in order to obtain desired properties (density, ground strength, etc.). It is an object of the present invention to provide a manufacturing method and apparatus capable of finely adjusting components such as material components and weight ratio, and performing a process from manufacturing to casting continuously and efficiently.
【００１１】[0011]
【課題を解決するための手段】本発明による流動化処理
土の製造方法は、被処理土から連続的に異物を除去する
異物除去工程と、前記工程を経た被処理土を、所定の単
位時間当たりの供給量で連続的に混練槽に供給しつつ前
記被処理土の密度を測定する被処理土供給工程と、水ま
たは所定の密度の泥水を所定の単位時間当たりの供給量
で連続的に混練槽に供給する泥水供給工程と、前記混練
槽で、前記被処理土と、前記水または泥水とを混合して
得られる混合物に固化材を添加して混練することで流動
化処理土を連続的に得る混練工程と、混練槽内の前記被
処理土と、前記水または泥水との混合物の密度およびフ
ロー値を測定する測定工程と、前記混合物の密度および
フロー値と、前記水または泥水および被処理土の密度と
から前記所定の混合比が得られるように前記被処理土お
よび／または水もしくは泥水の単位時間当たりの供給量
を調節する供給量調節工程とを具える。According to the present invention, there is provided a method for producing fluidized soil, comprising the steps of continuously removing foreign matter from the soil to be treated, and treating the soil after the above-mentioned process for a predetermined unit time. A soil supply step of measuring the density of the soil to be treated while continuously supplying the kneading tank with a supply amount per unit, and water or mud having a predetermined density continuously at a supply amount per a predetermined unit time. A muddy water supply step of supplying the kneading tank, and in the kneading tank, the solidification material is added to a mixture obtained by mixing the soil to be treated and the water or muddy water, and the mixture is kneaded to continuously process the fluidized treated soil. Kneading step to be obtained, the soil to be treated in a kneading tank, a measuring step of measuring the density and flow value of a mixture of the water or muddy water, the density and flow value of the mixture, the water or muddy water and From the density of the soil to be treated, Wherein such ratio is obtained comprising a supply amount adjusting step of adjusting the supply amount per unit time of the treated soil and / or water or mud.
【００１２】本発明による流動化処理土の製造方法にお
いて、異物除去工程では被処理土中に含まれるガラ、礫
などを連続的に除去して、土のみを得る。また被処理土
供給工程では、所望の性状を有する流動化処理土の製造
を連続的に行うために、所定の混合比に合わせて、単位
時間当たり一定量で被処理土の供給を行う。また泥水製
造工程および泥水供給工程においても、所定の混合比に
合わせて、単位時間当たり一定量で泥水を製造し、供給
を行う。そして混練工程においては、被処理土、泥水お
よび固化材の混練から打設のための圧送を連続して行
い、これによって流動化処理土の製造から打設までを行
う。[0012] In the method for producing a fluidized soil according to the present invention, in the foreign matter removing step, waste and gravel contained in the soil to be treated are continuously removed to obtain only the soil. In the process of supplying the soil to be treated, the soil to be treated is supplied in a constant amount per unit time in accordance with a predetermined mixing ratio in order to continuously produce fluidized soil having desired properties. Also in the muddy water production process and the muddy water supply process, muddy water is produced and supplied in a constant amount per unit time according to a predetermined mixing ratio. Then, in the kneading step, the kneading of the soil to be treated, the muddy water and the solidified material is continuously performed, and the pressure feeding for the casting is continuously performed.
【００１３】それ故、本製造方法によれば、所望の性質
を有する流動化処理土を得るための被処理土、泥水、固
化材の混合比などの細かい調整ができるとともに、被処
理土、泥水および固化材の投入量を一定にすることが可
能となり、それによって流動化処理土の製造量も一定と
することができる。さらに、製造から打設までの工程を
連続的かつ効率的に行うことができるようになる。Therefore, according to the present manufacturing method, it is possible to finely adjust the mixing ratio of the soil to be treated, the muddy water, and the solidified material to obtain the fluidized soil having the desired properties, In addition, it is possible to make the input amount of the solidifying material constant, thereby making the production amount of the fluidized soil constant. Further, the steps from manufacturing to casting can be performed continuously and efficiently.
【００１４】また本発明による流動化処理土の製造方法
は、好ましくは、現場で発生した被処理土または、その
被処理土の粘土分が少ない場合は外部より搬入した粘性
土もしくはそれを被処理土に加えたものである泥水用土
と水とを混合して製造する泥水製造工程を具えることを
特徴とする。これによって、現場で発生した残土から、
流動化処理の製造に供する泥水を製造することができ
る。The method for producing fluidized soil according to the present invention is preferably a soil to be treated which is generated on site or, if the clay content of the soil to be treated is small, a cohesive soil which has been carried in from the outside or which is to be treated. It is characterized by having a muddy water production process of mixing and producing water for muddy water added to the soil. As a result,
Muddy water can be produced for use in the production of fluidization treatment.
【００１５】さらに、本発明による流動化処理土の製造
方法は、好ましくは、流動化処理土の密度およびフロー
値をそれぞれ測定する測定工程とを具え、この測定工程
で得られた測定値を基に泥水、被処理土および固化材の
重量比などを調整することにより、所定の性質を有する
流動化処理土を製造することを特徴とする。これは、一
定の性状（地山強度など）を有する流動化処理土を製造
するためには、被処理土、泥水および固化材の混合比
（重量比）や密度、フロー値などを常に一定に保つ必要
があるからであり、そのため製造時に流動化処理土の密
度およびフロー値の測定を行うことによって、その結果
を基に処理土、泥水および固化材の混合比の調整を精密
に行って、製造する流動化処理土の品質を保つことがで
きる。Further, the method for producing a fluidized soil according to the present invention preferably comprises a measuring step for measuring the density and the flow value of the fluidized soil, respectively, based on the measured values obtained in this measuring step. By adjusting the weight ratio of the muddy water, the soil to be treated, and the solidified material, a fluidized treated soil having predetermined properties is manufactured. This means that in order to produce fluidized soil with a certain property (such as ground strength), the mixing ratio (weight ratio), density, flow value, etc. of the soil to be treated, muddy water and solidified material must be kept constant. This is because it is necessary to maintain, and therefore, by measuring the density and flow value of the fluidized treated soil at the time of production, based on the results, precisely adjust the mixing ratio of the treated soil, muddy water and solidified material, The quality of the fluidized soil to be produced can be maintained.
【００１６】また、本発明は、被処理土から連続的に異
物を除去する分別機と、前記分別機を通過した被処理土
を所定の単位時間当たりの供給量で連続的に搬送、排出
するための、スクリューコンベヤを設けたホッパーと、
前記スクリューコンベヤから排出された被処理土を、所
定の単位時間当たりの供給量で連続的に混練槽へ投入す
るための、荷重計を設けたベルトコンベヤと、所定密度
の泥水または水を貯蔵する貯蔵タンクと、前記貯蔵タン
クより供給された泥水または水を所定の単位時間当たり
の供給量で前記混練槽に供給するための、ロータを設け
た供給タンクと、固化材を所定の単位時間当たりの供給
量で連続的に前記混練槽へ供給するための、スクリュー
コンベヤを設けた固化材タンクと、前記ベルトコンベヤ
および供給タンクからそれぞれ供給される被処理土と泥
水または水とを混合し、得られた混合物に前記固化材タ
ンクより供給される固化材を添加して混練し、流動化処
理土を製造する前記混練槽と、前記混合物の密度および
フロー値を測定するため前記混練槽に設けた測定装置
と、得られた流動化処理土を打設するための圧送ポンプ
とを具え、前記水または泥水の密度と、前記荷重計を用
いて得た前記被処理土の密度と、前記測定装置で測定し
た前記混合物の密度およびフロー値に基づき、被処理土
および／または水もしくは泥水の供給量を調節すること
を特徴とする、流動化処理土の製造装置に関するもので
ある。Further, the present invention provides a sorting machine for continuously removing foreign matter from the soil to be treated, and continuously transports and discharges the soil to be treated that has passed through the sorting machine at a supply rate per a predetermined unit time. A hopper with a screw conveyor for
A belt conveyor provided with a load meter for storing the soil to be treated discharged from the screw conveyor into the kneading tank continuously at a predetermined supply amount per unit time, and stores muddy water or water of a predetermined density. A storage tank, a supply tank provided with a rotor for supplying muddy water or water supplied from the storage tank to the kneading tank in a supply amount per predetermined unit time, and a solidification material per predetermined unit time. For continuously supplying to the kneading tank at a supply amount, a solidified material tank provided with a screw conveyor, and the soil to be treated and muddy water or water respectively supplied from the belt conveyor and the supply tank are mixed and obtained. The solidified material supplied from the solidified material tank is added to the mixed mixture and kneaded, and the kneading tank for producing a fluidized soil, and the density and flow value of the mixture are measured. Therefore, it comprises a measuring device provided in the kneading tank, and a pressure pump for casting the obtained fluidized soil, the density of the water or muddy water, and the soil to be treated obtained by using the load meter. A process for producing a fluidized treated soil, comprising adjusting a supply amount of a soil to be treated and / or water or muddy water based on a density of the mixture and a density and a flow value of the mixture measured by the measuring device. It is.
【００１７】本発明による流動化処理土の製造装置にお
いては、分別機で被処理土に含まれるガラ、礫などの異
物を除去し、これをホッパーに投入する。ホッパーには
スクリューコンベヤを設け、投入した被処理土を単位時
間当たり一定の供給量で搬送、排出する。スクリューコ
ンベヤから排出された被処理土を、単位時間当たり一定
の供給量で混練槽に搬送するため、被処理土の重量を計
測する荷重計を設けたベルトコンベヤを用い、これによ
って被処理土を混練槽へ搬送する。また、泥水または水
を単位時間当たり一定の量で混練槽に供給するため、供
給タンクにロータを設け、ロータの回転により泥水また
は水の供給量を制御する。さらに固化材タンクにもスク
リューコンベヤを設け、固化材を単位時間当たり一定量
で混練槽に供給する。そして混練槽に設けた、製造した
流動化処理土の密度およびフロー値を測定する測定装置
により、測定した密度およびフロー値を基に流動化処理
土の品質を管理する。In the apparatus for producing fluidized soil according to the present invention, foreign matter such as looseness and gravel contained in the soil to be treated is removed by a sorting machine, and the foreign matter is put into a hopper. A screw conveyor is provided in the hopper to convey and discharge the soil to be treated at a constant supply rate per unit time. In order to transport the soil to be discharged from the screw conveyor to the kneading tank at a constant supply rate per unit time, a belt conveyor provided with a load meter for measuring the weight of the soil to be processed is used. Transfer to the kneading tank. In order to supply muddy water or water to the kneading tank at a constant rate per unit time, a rotor is provided in the supply tank, and the amount of muddy water or water supplied is controlled by rotation of the rotor. Further, a screw conveyor is provided also in the solidified material tank, and the solidified material is supplied to the kneading tank at a constant rate per unit time. Then, the quality of the fluidized soil is managed based on the measured density and flow value by a measuring device provided in the kneading tank and measuring the density and the flow value of the manufactured fluidized soil.
【００１８】従って、本製造装置によれば、所望の性質
を有する流動化処理土を得るための被処理土、泥水、固
化材の混合比などの細かい調整ができるとともに、被処
理土、泥水および固化材の投入量を一定にすることが可
能となり、それによって流動化処理土の製造量も一定と
することができる。さらに、製造から打設までの工程を
連続的かつ効率的に行うことができるようになる。Therefore, according to the present manufacturing apparatus, it is possible to finely adjust the mixing ratio of the soil to be treated, the muddy water, and the solidified material to obtain the fluidized soil having the desired properties, and also to adjust the mixing ratio of the soil to be treated, the muddy water, and the like. It is possible to make the input amount of the solidifying material constant, thereby making the production amount of the fluidized soil constant. Further, the steps from manufacturing to casting can be performed continuously and efficiently.
【００１９】また、本発明による製造装置は、好ましく
は、泥水の製造と、この泥水を用いた流動化処理土の製
造を、一つの混練槽で行うことを特徴とする。すなわ
ち、まず被処理土と水を混練槽に投入し、所定の性質を
有する泥水を製造した後、同じ混練槽に被処理土と、前
記製造した泥水および固化材を投入し、流動化処理土を
製造するものである。その結果、泥水製造から流動化処
理土の製造および打設までを連続的に行うことが可能と
なり、また混練槽を一つにすることによって、装置の構
成部品の数を低減でき、かつ広い設置場所を必要としな
くても済むので、現場での流動化処理土の製造および埋
戻し、裏込め等の施工を連続して行うことが可能とな
る。The production apparatus according to the present invention is preferably characterized in that the production of muddy water and the production of fluidized soil using this muddy water are performed in one kneading tank. That is, first, the soil to be treated and water are put into a kneading tank to produce muddy water having predetermined properties, and then the soil to be treated, the produced muddy water and the solidified material are put into the same kneading tank, and the fluidized soil is put into the kneading tank. Is to manufacture. As a result, it is possible to continuously perform from the production of muddy water to the production and placement of fluidized soil, and by using a single kneading tank, it is possible to reduce the number of components of the apparatus and to install it widely. Since there is no need for a place, the production and backfilling of the fluidized soil on the site and the construction such as backfilling can be performed continuously.
【００２０】さらに、本発明に係る製造装置には、製造
した流動化処理土の密度およびフロー値を測定するた
め、所定ヘッドまで前記混合物を圧送するポンプと、前
記圧送時の圧力を測定する圧力計と、前記圧送時の流量
を計測する流量とを具える測定装置を設けても良い。こ
の測定装置によれば、流動化処理土の製造装置で密度と
フロー値とを同時にかつ簡便に計測することができ、そ
れによって得られた密度およびフロー値を基に流動化処
理土の品質管理を行い、品質の一定した流動化処理土の
製造を図ることができる。Further, the production apparatus according to the present invention includes a pump for pumping the mixture to a predetermined head in order to measure the density and flow value of the produced fluidized soil, and a pressure for measuring the pressure during the pumping. There may be provided a measuring device including a meter and a flow rate for measuring the flow rate during the pressure feeding. According to this measuring device, the density and the flow value can be simultaneously and simply measured in the fluidized soil production apparatus, and the quality control of the fluidized soil is performed based on the density and the flow value obtained thereby. And the production of fluidized soil with constant quality can be achieved.
【００２１】[0021]
【発明の実施の形態】以下、図面を参照して本発明の好
適な実施形態について詳述する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.
【００２２】図１は、本発明に基づく流動化処理土の製
造装置を概略示す系統図である。本装置は、被処理土か
らガラ、礫などを除去する分別機１、前記分別機１を通
過した被処理土を混練槽へ供給する供給ホッパー５、被
処理土を混練槽へ搬送するベルトコンベヤ７、泥水供給
タンク９、混練槽11、固化材タンク14、泥水または水を
貯蔵する貯蔵タンク16および予備貯蔵タンク17、製造し
た流動化処理土を貯留する貯留槽18および製造した流動
化処理土を打設するための圧送ポンプ19を具える。FIG. 1 is a system diagram schematically showing an apparatus for producing fluidized soil according to the present invention. The apparatus comprises a sorting machine 1 for removing waste and gravels from the soil to be treated, a supply hopper 5 for supplying the soil to be processed that has passed through the sorting machine 1 to a kneading tank, and a belt conveyor for conveying the soil to be processed to a kneading tank. 7, muddy water supply tank 9, kneading tank 11, solidification material tank 14, storage tank 16 and preliminary storage tank 17 for storing muddy water or water, storage tank 18 for storing manufactured fluidized soil, and manufactured fluidized soil And a pumping pump 19 for casting.
【００２３】分別機１には、被処理土を投入するホッパ
ー２、被処理土からガラ、礫などを除去するための分別
ロータ３および前記ガラ、礫などを除去した被処理土を
排出するためのスリット４を設けている。また、供給ホ
ッパー５には、被処理土供給のためのスクリューコンベ
ヤ６を、固化材タンク14には固化材供給のためのスクリ
ューコンベヤ15をそれぞれ設け、これらはそれぞれ図示
しない駆動手段により駆動する。The sorting machine 1 is provided with a hopper 2 for charging the soil to be treated, a sorting rotor 3 for removing waste and gravels and the like from the soil to be treated and a hopper 2 for discharging the treated soil from which the glares and gravel are removed. Are provided. The supply hopper 5 is provided with a screw conveyor 6 for supplying the soil to be treated, and the solidified material tank 14 is provided with a screw conveyor 15 for supplying the solidified material, and these are driven by driving means (not shown).
【００２４】ベルトコンベヤ７には、被処理土の重量を
測定するための荷重計８を設け、泥水供給タンク９に
は、泥水を一定量で供給するためのロータ10を設けてい
る。また混練槽11には２軸攪拌機12を設け、この２軸攪
拌機12は図示しない駆動手段により駆動する。The belt conveyor 7 is provided with a load cell 8 for measuring the weight of the soil to be treated, and the muddy water supply tank 9 is provided with a rotor 10 for supplying a constant amount of muddy water. Further, a twin-screw stirrer 12 is provided in the kneading tank 11, and this twin-screw stirrer 12 is driven by driving means (not shown).
【００２５】泥水または水の貯蔵タンク16および予備貯
蔵タンク17には、泥水または水を供給タンク９へ送るポ
ンプ20および配管21、バルブ22、配管23をそれぞれ設
け、その配管23と供給タンク９との間には、三方バルブ
24、圧力計25および流量計26からなる泥水密度測定部を
設け、密度およびフロー値の測定の際には三方バルブ24
を切換えて、前記測定部の圧力計25および流量計26へ泥
水が流れるようにする。The storage tank 16 and the preliminary storage tank 17 for muddy water or water are provided with a pump 20 for sending muddy water or water to the supply tank 9, a pipe 21, a valve 22 and a pipe 23, respectively. Between the three-way valve
24, a muddy water density measuring unit consisting of a pressure gauge 25 and a flow meter 26 is provided.When measuring the density and flow value, a three-way valve 24
To make the muddy water flow to the pressure gauge 25 and the flow meter 26 of the measuring section.
【００２６】さらに混練槽11の一部にトラップ13を設け
て、製造した泥水または流動化処理土をそこに貯留でき
るようにし、このトラップ13に、ポンプ27、バルブ28、
圧力計29、流量計30およびこれらを繋ぐ配管31を具える
密度およびフロー値の測定装置32を設ける。同様に、貯
留槽18にも密度およびフロー値の測定装置32を設ける。
なお、この測定装置32による密度およびフロー値の測定
方法は、後述の品質管理方法のところで詳述する。Further, a trap 13 is provided in a part of the kneading tank 11 so that the produced muddy water or fluidized soil can be stored therein. A pump 27, a valve 28,
A density and flow value measuring device 32 including a pressure gauge 29, a flow meter 30, and a pipe 31 connecting them is provided. Similarly, the storage tank 18 is provided with a device 32 for measuring the density and the flow value.
The method of measuring the density and the flow value by the measuring device 32 will be described in detail in the quality control method described later.
【００２７】圧送ポンプ19の下流の配管に三方バルブ33
を設ける。このバルブは、後述するように、泥水製造の
際、製造した泥水を貯留タンク16および予備タンク17に
送るため、および流動化処理土製造の際、所望の性質を
有する処理土が得られなかった場合に再度混練を行うた
めのものである。そのため、前記三方バルブ33と貯留タ
ンク16または予備タンク17とを繋ぐ戻り管34を設ける。A three-way valve 33 is connected to a pipe downstream of the pressure pump 19.
Is provided. This valve, as described below, during the production of mud, to send the produced mud to the storage tank 16 and the spare tank 17, and during the production of fluidized treated soil, the treated soil having the desired properties could not be obtained It is for kneading again in the case. Therefore, a return pipe 34 connecting the three-way valve 33 and the storage tank 16 or the spare tank 17 is provided.
【００２８】図２に分別機１の外観を示す。分別機１
は、被処理土を投入するホッパー２、投入した被処理土
からガラ、礫などの異物を除去するための分別ロータ３
およびこのロータを駆動するモータ36を具え、また分別
機１の底面に近い側面の一部に、異物を除去した被処理
土を排出するためのスリット４を設けている。なお、分
別ロータ３の翼部およびスリット４を図３および図４に
それぞれ示す。FIG. 2 shows the appearance of the sorting machine 1. Sorting machine 1
Is a hopper 2 for charging the soil to be treated, and a separation rotor 3 for removing foreign substances such as looseness and gravel from the soil to be charged.
And a motor 36 for driving the rotor, and a slit 4 for discharging the soil to be treated from which foreign matter has been removed is provided on a part of the side surface near the bottom surface of the sorting machine 1. The wings of the sorting rotor 3 and the slits 4 are shown in FIGS. 3 and 4, respectively.
【００２９】図５は、泥水供給タンク９の下部に設けた
ロータ10を示す。図に示すようにロータ10は、ケース37
と、軸38と、この軸に取り付けた７枚の羽根39を具え、
図示しない駆動手段により軸38が回転する。各羽根の先
端部には、ケース内壁と羽根先端部との間をシールする
ためのゴム板40を設けている。そのため、軸の回転によ
り、タンクから供給された泥水が隣合う２枚の羽根とケ
ース内壁との間に一定量だけ一時的に収容され、その後
排出される。従って、ロータの回転速度に応じた所定量
の泥水が供給されることとなる。FIG. 5 shows a rotor 10 provided below the muddy water supply tank 9. As shown in the figure, the rotor 10 is
And a shaft 38 and seven blades 39 attached to the shaft,
The shaft 38 is rotated by driving means (not shown). At the tip of each blade, a rubber plate 40 for sealing between the inner wall of the case and the tip of the blade is provided. Therefore, due to the rotation of the shaft, the muddy water supplied from the tank is temporarily stored by a fixed amount between two adjacent blades and the inner wall of the case, and then discharged. Therefore, a predetermined amount of muddy water is supplied according to the rotation speed of the rotor.
【００３０】図６は、混練槽11に設けたトラップ13の断
面を示す。図６(b) に示すように、混練槽11のトラップ
13を設けた側の壁面にはスリット41を設け、これにより
泥水または処理土の一部がトラップに貯留される。貯留
された泥水または処理土はポンプ27で吸引されて、図６
には図示していない圧力計29および流量計30によりその
圧力、流量が測定される。FIG. 6 shows a cross section of the trap 13 provided in the kneading tank 11. As shown in FIG.
A slit 41 is provided on the wall surface on the side where 13 is provided, so that part of muddy water or treated soil is stored in the trap. The stored muddy water or treated soil is sucked by the pump 27 and
The pressure and flow rate are measured by a pressure gauge 29 and a flow meter 30 (not shown).
【００３１】図７は、本発明に係る流動化処理土の製造
工程を示すフローチャートである。FIG. 7 is a flowchart showing a process for producing a fluidized soil according to the present invention.
【００３２】次に図１および図７に基づき、本発明によ
る流動化処理土の製造手順について説明する。Next, a production procedure of the fluidized soil according to the present invention will be described with reference to FIGS.
【００３３】まず、図７の工程Ａで、泥水用として、現
場で発生した残土（被処理土）42または、その被処理土
の粘土分が少ない場合は外部より搬入した粘性土もしく
はそれを被処理土に加えたものである泥水用土を分別機
１のホッパー２に投入し、ロータ３によってガラ、礫な
どの異物43を除去した後、供給ホッパー５へ投入する。
供給ホッパー５に投入された泥水用土は、スクリューコ
ンベヤ６により単位時間当たりの排出量を規制されつつ
ホッパー下のベルトコンベヤ７に排出される。このと
き、スクリューコンベヤ６の回転速度に基づき、その排
出量を測定する。次いでベルトコンベヤ７により混練槽
11への搬送が行われるが、ベルトコンベヤ７に設けた荷
重計８により、その泥水用土の重量を測定する。これと
並行して貯蔵タンク16より供給タンク９に水を供給す
る。混練槽11に搬送された泥水用土に、その重量に応じ
て前記供給タンクより水を供給し、混練（解泥）を行い
泥水を製造する。First, in step A of FIG. 7, for muddy water, surplus soil (processed soil) 42 generated on site or, when the clay content of the processed soil is small, viscous soil carried in from outside or coated with clay. Muddy soil added to the treated soil is put into the hopper 2 of the sorting machine 1, the foreign matter 43 such as looseness and gravel is removed by the rotor 3, and then put into the supply hopper 5.
The muddy soil poured into the supply hopper 5 is discharged to the belt conveyor 7 below the hopper while the discharge amount per unit time is regulated by the screw conveyor 6. At this time, the discharge amount is measured based on the rotation speed of the screw conveyor 6. Next, a kneading tank by the belt conveyor 7
Although the conveyance to 11 is performed, the weight of the muddy soil is measured by the load meter 8 provided on the belt conveyor 7. At the same time, water is supplied from the storage tank 16 to the supply tank 9. Water is supplied from the supply tank according to the weight to the muddy soil conveyed to the kneading tank 11 and kneaded (de-mudging) to produce muddy water.
【００３４】製造した泥水は、貯留槽18、圧送ポンプ1
9、三方バルブ33および戻り管34を経て予備タンク17に
貯蔵する。また、製造時に、混練槽11のトラップ13に設
けた密度およびフロー値の測定装置32により泥水の密度
およびフロー値を測定し、所定の値が得られなかった場
合、予備タンク17に貯蔵した泥水を再度供給タンク９を
経て混練槽11に投入し、これに泥水用土および水を添加
して再度混練を行う。The produced muddy water is stored in a storage tank 18, a pressure pump 1
9. Store in the reserve tank 17 via the three-way valve 33 and the return pipe 34. During production, the density and flow value of the muddy water were measured by a density and flow value measuring device 32 provided in the trap 13 of the kneading tank 11, and if the predetermined values were not obtained, the muddy water stored in the preliminary tank 17 was not measured. Is again supplied to the kneading tank 11 through the supply tank 9, and the muddy soil and water are added thereto and kneading is performed again.
【００３５】所定の性状を有する泥水を製造した後、図
７の工程Ｂで流動化処理土の連続的製造を行う。前述し
た泥水の製造手順と同様、ホッパー２に投入して分別機
１で異物を除去した被処理土42を、供給ホッパー５、ベ
ルトコンベヤ７を経て混練槽11へ投入し、前記の工程Ａ
で製造した泥水と混合して、混練を行う。これに固化材
タンク14より固化材を投入し、さらに混練を行う。製造
した流動化処理土は貯留槽18へ排出され、この貯留槽18
に設けた密度およびフロー値の測定装置32により測定を
行う。測定の結果所定の性質が得られた場合、圧送ポン
プ19により圧送し、流量計35を経て打設する。一方、所
定の性質が得られなかった場合は、前述の泥水の場合と
同様、戻り管34側に三方バルブ33を切換えて混練槽11に
戻し、被処理土、泥水および固化材を再度添加して混練
を行う。After producing muddy water having a predetermined property, fluidized soil is continuously produced in step B of FIG. In the same manner as the muddy water production procedure described above, the soil 42 to be treated, which has been introduced into the hopper 2 and the foreign matter has been removed by the sorting machine 1, is introduced into the kneading tank 11 via the supply hopper 5 and the belt conveyor 7.
And kneading with the muddy water produced in the above. The solidified material is supplied from the solidified material tank 14 and further kneaded. The manufactured fluidized soil is discharged to a storage tank 18 and the storage tank 18
The measurement is performed by the density and flow value measuring device 32 provided in the above. When a predetermined property is obtained as a result of the measurement, the liquid is pumped by the pressure pump 19 and is driven through the flow meter 35. On the other hand, when the predetermined properties are not obtained, the three-way valve 33 is switched to the return pipe 34 side to return to the kneading tank 11 as in the case of the above-mentioned muddy water, and the soil to be treated, muddy water and the solidified material are added again. And knead.
【００３６】次に、本発明に基づく製造装置における流
動化処理土の品質管理手順について、図８を参照して説
明する。Next, a quality control procedure of the fluidized soil in the manufacturing apparatus according to the present invention will be described with reference to FIG.
【００３７】まず、泥水または水については、図８の工
程Ｃに示すように、図１に示す貯留タンク16からポンプ
20により供給タンク９へ送る際、途中の配管23に設けた
圧力計25および流量計26により圧力および流量をそれぞ
れ測定し、その値から密度を求める。その後、供給タン
ク９下部のロータ10の回転速度により、混練槽11への泥
水の供給量を制御する。First, muddy water or water is pumped from the storage tank 16 shown in FIG.
When sending to the supply tank 9 by 20, the pressure and the flow rate are respectively measured by the pressure gauge 25 and the flow meter 26 provided in the pipe 23 on the way, and the density is obtained from the values. Thereafter, the amount of muddy water supplied to the kneading tank 11 is controlled by the rotation speed of the rotor 10 below the supply tank 9.
【００３８】被処理土42については、図８の工程Ｄに示
すように、供給ホッパー５に設けたスクリューコンベヤ
６の回転速度により、単位時間当たりの排出量を測定す
る。次いでベルトコンベヤ７に設けた荷重計８により重
量を測定し、この値と前述の排出量から密度を求める。As for the soil 42 to be treated, as shown in step D of FIG. 8, the discharge amount per unit time is measured by the rotation speed of the screw conveyor 6 provided in the supply hopper 5. Next, the weight is measured by the load meter 8 provided on the belt conveyor 7, and the density is obtained from this value and the above-mentioned discharge amount.
【００３９】次いで、図８の工程Ｅに示すように、泥水
と被処理土とを混練した後、混練槽11に設けた密度およ
びフロー値測定装置32によりその混合物の密度およびフ
ロー値を求め、その結果に基づき、泥水または被処理土
の供給量をフィードバック制御する。Next, as shown in step E of FIG. 8, after the muddy water and the soil to be treated are kneaded, the density and flow value of the mixture are determined by a density and flow value measuring device 32 provided in the kneading tank 11. Based on the result, the feed amount of the muddy water or the soil to be treated is feedback-controlled.
【００４０】泥水と被処理土の混合物が所定の性質（密
度、フロー値）を満足したら、固化材を、固化材タンク
14に設けたスクリューコンベヤ15の回転速度により規制
した所定の量だけ前記混合物に添加する。これによって
得られた流動化処理土は貯留槽18に設けた密度およびフ
ロー値測定装置32により密度およびフロー値を測定し、
所定の値を満たしていれば圧送ポンプ19により圧送し、
打設に供する。なお、所定の値が満たされていない場合
は、固化材の供給を止めて、流動化処理土を図８に二点
鎖線で示すように泥水タンクを経て混練槽11に戻し、再
度混練を行う。When the mixture of the muddy water and the soil to be treated satisfies predetermined properties (density, flow value), the solidified material is removed from the solidified material tank.
A predetermined amount regulated by the rotation speed of the screw conveyor 15 provided in 14 is added to the mixture. The fluidized treated soil obtained by this is measured density and flow value by the density and flow value measuring device 32 provided in the storage tank 18,
If the predetermined value is satisfied, the pressure is pumped by the pressure pump 19,
Provide for casting. If the predetermined value is not satisfied, the supply of the solidifying material is stopped, and the fluidized soil is returned to the kneading tank 11 via the muddy water tank as shown by the two-dot chain line in FIG. 8, and the kneading is performed again. .
【００４１】図９に密度およびフロー値の測定装置32の
概略を示す。本測定装置は、ポンプ27、電磁バルブ28、
圧力計29、流量計30およびこれらを繋ぐ配管31を具え
る。以下、本測定装置による密度およびフロー値の測定
手順を示す。FIG. 9 schematically shows the density and flow value measuring device 32. This measuring device includes a pump 27, an electromagnetic valve 28,
It comprises a pressure gauge 29, a flow meter 30, and a pipe 31 connecting them. Hereinafter, a procedure for measuring the density and the flow value by the present measuring device will be described.
【００４２】まず、予め清水により装置の調整を行う。
バルブ28を開放してポンプ27により清水を圧送し、この
ときの流量および圧送圧力を測定する。次にバルブ28を
閉鎖し、配管31内に清水を溜めたときのヘッド圧力を測
定する。その後、泥水または流動化処理土を圧送し、流
量および圧送圧力を測定する。First, the apparatus is adjusted with fresh water in advance.
The valve 28 is opened and fresh water is pumped by the pump 27, and the flow rate and the pumping pressure at this time are measured. Next, the valve 28 is closed, and the head pressure when fresh water is stored in the pipe 31 is measured. Thereafter, the muddy water or fluidized soil is pumped, and the flow rate and the pumping pressure are measured.
【００４３】以上の測定結果から、密度およびフロー値
を以下のようにして求める。密度は、前記の測定で得ら
れた清水および泥水または流動化処理土それぞれの流
量、圧送圧力およびヘッド圧力から、清水のヘッド圧力
と、泥水または流動化処理土のヘッド圧力との比より換
算して求める。これは、清水の密度が既知（１tf／
ｍ3）であり、また測定装置の配管の高さ（図９に示す
ｈの値）も一定であることから、泥水または流動化処理
土の密度は、前記の測定で得られた流量およびヘッド圧
力から、清水の密度に対して相対的に求めることができ
ることによる。From the above measurement results, the density and the flow value are obtained as follows. The density is calculated from the flow rate, pumping pressure and head pressure of fresh water and muddy water or fluidized soil obtained by the above measurement, by converting the ratio between the head pressure of freshwater and the head pressure of muddy water or fluidized soil. Ask. This is because the density of fresh water is known (1 tf /
m 3 ) and the height of the piping of the measuring device (the value of h shown in FIG. 9) is constant, so that the density of muddy water or fluidized soil is determined by the flow rate and the head obtained by the above-described measurement. This is because the pressure can be determined relative to the density of fresh water.
【００４４】一方フロー値については、圧送時の流量お
よび圧送圧力より求める。すなわち、予め流量一定とし
た場合の圧力とフロー値との相関、および圧力一定とし
た場合の流量とフロー値との相関を求め、測定値と前述
の二つの相関から、フロー値を求める。これは、フロー
値とは泥水および流動化処理土の流動性を示す値であり
（日本道路公団基準(JHS A 313-1992)参照）、フロー値
が小さい、すなわち流動性が低い場合には、圧送時にお
ける流動抵抗が大きくなるためより高い圧力が必要であ
り、一方フロー値が大きい、すなわち流動性が高い場合
には、流動抵抗が小さいため圧送時には低い圧力で済む
ことから、予め圧送圧力とフロー値との間の関係を求め
ることにより、任意の圧送圧力に対する泥水および流動
化処理土のフロー値が得られることによる。なお、前述
の相関を示すグラフの一例を図10に示す。On the other hand, the flow value is obtained from the flow rate and the pumping pressure during pumping. That is, the correlation between the pressure and the flow value when the flow rate is fixed in advance and the correlation between the flow rate and the flow value when the pressure is fixed are determined, and the flow value is determined from the measured value and the above-described two correlations. The flow value is a value indicating the fluidity of muddy water and fluidized soil (see Japan Highway Public Corporation Standard (JHS A 313-1992)). When the flow value is small, that is, when the fluidity is low, A higher pressure is necessary because the flow resistance at the time of pumping becomes large, while a high flow value, that is, when the flowability is high, the flow resistance is small so that a low pressure is required at the time of pumping. By determining the relationship between the flow value and the flow value, it is possible to obtain the flow value of the muddy water and the fluidized treated soil at an arbitrary pumping pressure. FIG. 10 shows an example of a graph showing the above-mentioned correlation.
【００４５】[0045]
【発明の効果】以上のように、本発明による方法および
これを実施するための装置により、所望の性質を有する
流動化処理土の製造を効率的に行うことが可能となり、
また品質管理をも含めた工程を自動化することにより、
少ない作業者数での製造が可能となる。As described above, the method according to the present invention and the apparatus for carrying out the method enable the efficient production of fluidized soil having desired properties,
By automating processes including quality control,
Manufacturing with a small number of workers becomes possible.
【００４６】さらに、本発明に係る装置は比較的狭い場
所でも設置が可能であり、かつ構成部品の数も比較的少
ないことから、建設現場への設置が容易であり、その場
で流動化処理土を製造し、直ちに埋戻し、裏込め、充填
などの作業を行うことができ、建設作業全体の効率化を
図ることも可能である。Further, since the apparatus according to the present invention can be installed even in a relatively small place and the number of components is relatively small, it can be easily installed on a construction site, and fluidization processing is performed on the spot. Manufacture of soil can be performed immediately, such as backfilling, backfilling, filling, etc., making it possible to improve the efficiency of the entire construction work.
【図１】本発明による流動化処理土の製造装置の概略を
示す系統図である。FIG. 1 is a system diagram schematically showing an apparatus for producing fluidized soil according to the present invention.
【図２】本発明による流動化処理土製造装置の分別機を
示す斜視図である。FIG. 2 is a perspective view showing a sorting machine of the fluidized soil production apparatus according to the present invention.
【図３】本発明による流動化処理土製造装置の分別機の
ロータの翼部を示す図である。FIG. 3 is a diagram showing the blades of the rotor of the sorting machine of the fluidized soil manufacturing apparatus according to the present invention.
【図４】本発明による流動化処理土製造装置の分別機の
断面および側面のスリットを示す図である。FIG. 4 is a view showing a cross-section and a slit on a side surface of the sorting machine of the fluidized-processed soil manufacturing apparatus according to the present invention.
【図５】本発明による流動化処理土製造装置の泥水供給
タンクに設けたロータを示す断面図である。FIG. 5 is a cross-sectional view showing a rotor provided in a muddy water supply tank of the fluidized soil production apparatus according to the present invention.
【図６】本発明による流動化処理土製造装置の混練槽の
トラップ部を示す断面図およびトラップ部における混練
槽の側面の一部を示す図である。FIG. 6 is a cross-sectional view showing a trap section of a kneading tank of the fluidized soil manufacturing apparatus according to the present invention, and a diagram showing a part of a side surface of the kneading tank in the trap section.
【図７】本発明による流動化処理土の製造工程を示すフ
ローチャートである。FIG. 7 is a flowchart showing a manufacturing process of a fluidized soil according to the present invention.
【図８】本発明による流動化処理土の製造工程における
品質管理手順を示すフローチャートである。FIG. 8 is a flowchart showing a quality control procedure in a process for producing a fluidized soil according to the present invention.
【図９】本発明による流動化処理土の製造装置の密度お
よびフロー値測定装置の概略を示す図である。FIG. 9 is a diagram schematically showing an apparatus for measuring the density and flow value of the apparatus for producing fluidized soil according to the present invention.
【図１０】泥水および流動化処理土における、圧送圧力
とフロー値との相関の一例を示す図である。FIG. 10 is a diagram showing an example of a correlation between a pumping pressure and a flow value in muddy water and fluidized soil.
【図１１】流動化処理土製造装置の従来例の概略を示す
図である。FIG. 11 is a diagram schematically illustrating a conventional example of a fluidized soil production apparatus.
1 分別機 2, 48 ホッパー 3 分別ロータ 4 スリット 5, 60 被処理土供給ホッパー 6, 15, 61, 68 スクリューコンベヤ 7, 62 ベルトコンベヤ 8 荷重計 9, 58 泥水供給タンク 10, 59, 64 ロータ 11, 65 混練槽 12, 52, 66 ２軸攪拌機 13 トラップ 14, 67 固化材タンク 16 貯蔵タンク 17 予備貯蔵タンク 18 貯留槽 19, 53, 69 圧送ポンプ 20, 27, 56 ポンプ 21, 23, 31 配管 22, 28 バルブ 24, 33 三方バルブ 25, 29 圧力計 26, 30, 35, 70 流量計 32 密度およびフロー値測定装置 34 戻り管 36 モータ 37 ケース 38 軸 39 羽根 40 ゴム板 41 スリット 42 被処理土 43 ガラ、礫など異物 44 水または泥水 45 泥水または泥水と被処理土の混合物 46 流動化処理土 47 解泥機 49 エンドレスチェーン 50 プレート 51 被処理土排出スリット 54 ふるい 55 調泥槽 57 混練機 63 被処理土タンク 1 Sorting machine 2, 48 Hopper 3 Sorting rotor 4 Slit 5, 60 Soil supply hopper 6, 15, 61, 68 Screw conveyor 7, 62 Belt conveyor 8 Load cell 9, 58 Mud supply tank 10, 59, 64 Rotor 11 , 65 Kneading tank 12, 52, 66 Twin screw stirrer 13 Trap 14, 67 Solidified material tank 16 Storage tank 17 Spare storage tank 18 Storage tank 19, 53, 69 Pumping pump 20, 27, 56 Pump 21, 23, 31 Piping 22 , 28 Valve 24, 33 Three-way valve 25, 29 Pressure gauge 26, 30, 35, 70 Flowmeter 32 Density and flow value measurement device 34 Return pipe 36 Motor 37 Case 38 Shaft 39 Blade 40 Rubber plate 41 Slit 42 Soil 43 Foreign matter such as waste and gravel 44 Water or muddy water 45 Mixture of muddy water or muddy water and soil to be treated 46 Fluidized soil 47 Mud crusher 49 Endless chain 50 Plate 51 Soil discharge slit 54 Sieve 55 Mud tank 57 Kneader 63 Treated soil tank
───────────────────────────────────────────────────── フロントページの続き (72)発明者 森 範行 茨城県つくば市大字旭１番地 建設省土木 研究所内 (72)発明者 久野 悟郎 東京都文京区大塚４丁目２番15号 (72)発明者 岩淵 常太郎 東京都港区港南１丁目６番34号 社団法人 日本建設業経営協会 中央技術研究所内 (72)発明者 柴田 靖平 東京都港区港南１丁目６番34号 社団法人 日本建設業経営協会 中央技術研究所内 (72)発明者 谷口 利久 東京都港区港南１丁目６番34号 社団法人 日本建設業経営協会 中央技術研究所内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Noriyuki Mori 1 Asahi, Oaza, Tsukuba, Ibaraki Pref. Public Works Research Laboratory, Ministry of Construction (72) Inventor Goro Kuno 4-2-15-1 Otsuka, Bunkyo-ku, Tokyo (72) Inventor Jotaro Iwabuchi 1-34, Konan, Minato-ku, Tokyo Japan Construction Management Association Central Technology Research Institute (72) Inventor Yasuhide Shibata 1-34, Konan, Minami-ku, Tokyo 1-34, Japan Construction Management Association Central Technology Research Institute (72) Inventor Toshihisa Taniguchi 1-6-34 Konan, Minato-ku, Tokyo Japan Construction Industry Management Association Central Technology Research Institute
Claims (6)
と、水または泥水と、固化材とを所定の混合比で混合し
てなる土工事用流動化処理土の製造において、 被処理土から連続的に異物を除去する異物除去工程と、 前記工程を経た被処理土を、所定の単位時間当たりの供
給量で連続的に混練槽に供給しつつ前記被処理土の密度
を測定する被処理土供給工程と、 水または所定の密度の泥水を所定の単位時間当たりの供
給量で連続的に混練槽に供給する泥水供給工程と、 前記混練槽で、前記被処理土と、前記水または泥水とを
混合して得られる混合物に固化材を添加して混練するこ
とで流動化処理土を連続的に得る混練工程と、 混練槽内の前記被処理土と、前記水または泥水との混合
物の密度およびフロー値を測定する測定工程と、 前記混合物の密度およびフロー値と、前記水または泥水
および被処理土の密度とから前記所定の混合比が得られ
るように前記被処理土および／または水もしくは泥水の
単位時間当たりの供給量を調節する供給量調節工程とを
具える、流動化処理土の製造方法。1. A method for manufacturing a fluidized soil for earthwork, comprising mixing a soil to be treated as surplus soil generated at a construction site, water or muddy water, and a solidifying material at a predetermined mixing ratio. A foreign matter removing step of continuously removing foreign matter from the substrate; and a step of measuring the density of the treated soil while continuously supplying the treated soil having undergone the above-described steps to a kneading tank at a predetermined supply amount per unit time. A treated soil supply step, a muddy water supply step of continuously supplying water or muddy water of a predetermined density to the kneading tank at a predetermined supply amount per unit time, and in the kneading tank, the soil to be treated, the water or A kneading step of continuously adding fluidized soil by adding a solidifying material to a mixture obtained by mixing mud and kneading, and a mixture of the soil to be treated in the kneading tank and the water or muddy water A measuring step for measuring the density and flow value of the mixture, Supply for adjusting the supply amount per unit time of the soil to be treated and / or water or mud so as to obtain the predetermined mixing ratio from the density and flow value of water and the density of the water or mud and the soil to be treated. A method for producing fluidized soil comprising a step of adjusting the amount.
を具えることを特徴とする、流動化処理土の製造方法。2. The method according to claim 1, further comprising the step of mixing muddy soil with water to produce muddy water.
測定工程を具えることを特徴とする、流動化処理土の製
造方法。3. The method for producing a fluidized soil according to claim 1, further comprising a measuring step of measuring a density and a flow value of the obtained fluidized soil.
と、水または泥水と、固化材とを所定の混合比で混合し
てなる土工事用流動化処理土の製造装置において、 被処理土から連続的に異物を除去する分別機と、 前記分別機を通過した被処理土を所定の単位時間当たり
の供給量で連続的に搬送、排出するための、スクリュー
コンベヤを設けたホッパーと、 前記スクリューコンベヤから排出された被処理土を、所
定の単位時間当たりの供給量で連続的に混練槽へ投入す
るための、荷重計を設けたベルトコンベヤと、所定密度
の泥水または水を貯蔵する貯蔵タンクと、 前記貯蔵タンクより供給された泥水または水を所定の単
位時間当たりの供給量で前記混練槽に供給するための、
ロータを設けた供給タンクと、 固化材を所定の単位時間当たりの供給量で連続的に前記
混練槽へ供給するための、スクリューコンベヤを設けた
固化材タンクと、 前記ベルトコンベヤおよび供給タンクからそれぞれ供給
される被処理土と泥水または水とを混合し、得られた混
合物に前記固化材タンクより供給される固化材を添加し
て混練し、流動化処理土を製造する前記混練槽と、 前記混合物の密度およびフロー値を測定するため前記混
練槽に設けた測定装置と、 得られた流動化処理土を打設するための圧送ポンプとを
具え、 前記水または泥水の密度と、前記荷重計を用いて得た前
記被処理土の密度と、前記測定装置で測定した前記混合
物の密度およびフロー値に基づき、被処理土および／ま
たは水もしくは泥水の供給量を調節することを特徴とす
る、流動化処理土の製造装置。4. An apparatus for producing fluidized treated soil for earthwork, comprising mixing a treated soil, which is residual soil generated at a construction site, water or muddy water, and a solidified material at a predetermined mixing ratio. A sorting machine for continuously removing foreign matter from soil, and a hopper provided with a screw conveyor for continuously transporting and discharging the soil to be processed that has passed through the sorting machine at a supply amount per a predetermined unit time, A belt conveyor provided with a load meter for storing the soil to be treated discharged from the screw conveyor into the kneading tank continuously at a predetermined supply amount per unit time, and stores muddy water or water of a predetermined density. Storage tank, for supplying muddy water or water supplied from the storage tank to the kneading tank in a supply amount per a predetermined unit time,
A supply tank provided with a rotor, a solidified material tank provided with a screw conveyor for continuously supplying the solidified material to the kneading tank at a predetermined supply amount per unit time, and a belt conveyor and a supply tank, respectively. Mixing the supplied soil to be treated and muddy water or water, adding and solidifying the solidified material supplied from the solidified material tank to the obtained mixture, the kneading tank to produce fluidized treated soil, A measuring device provided in the kneading tank for measuring the density and the flow value of the mixture, and a pressure pump for casting the obtained fluidized soil, the density of the water or muddy water, and the load cell And adjusting the supply amount of the soil to be treated and / or water or muddy water based on the density of the soil to be treated obtained using the method and the density and flow value of the mixture measured by the measuring device. The symptom, the manufacturing apparatus of the fluidizing treated soil.
造と、この泥水を用いた流動化処理土の製造を同一の混
練槽により行うことを特徴とする流動化処理土製造装
置。5. The fluidized soil production apparatus according to claim 4, wherein the production of the mud and the production of the fluidized soil using the mud are performed in the same kneading tank.
合物を圧送するポンプと、前記圧送時の圧力を測定する
圧力計と、前記圧送時の流量を計測する流量とを具える
ことを特徴とする、請求項５記載の装置用の測定装置。6. The measuring device includes a pump for pumping the mixture to a predetermined head, a pressure gauge for measuring a pressure during the pumping, and a flow rate for measuring a flow rate during the pumping. A measuring device for the device according to claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20017797A JP3820467B2 (en) | 1997-07-25 | 1997-07-25 | Method and apparatus for producing fluidized soil for earth work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20017797A JP3820467B2 (en) | 1997-07-25 | 1997-07-25 | Method and apparatus for producing fluidized soil for earth work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1143967A true JPH1143967A (en) | 1999-02-16 |
| JP3820467B2 JP3820467B2 (en) | 2006-09-13 |
Family
ID=16420083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20017797A Expired - Lifetime JP3820467B2 (en) | 1997-07-25 | 1997-07-25 | Method and apparatus for producing fluidized soil for earth work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3820467B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007254996A (en) * | 2006-03-22 | 2007-10-04 | Penta Ocean Constr Co Ltd | Lightweight soil placing method |
| JP2008308837A (en) * | 2007-06-12 | 2008-12-25 | Ohbayashi Corp | Method and system for manufacturing fluidized soil |
| JP2010270459A (en) * | 2009-05-19 | 2010-12-02 | Ohbayashi Corp | Soil reforming facility and soil reforming method |
| JP2015098699A (en) * | 2013-11-19 | 2015-05-28 | 徳倉建設株式会社 | Delay curing type fluidized soil and filling method of underground cavity |
| JP2021070992A (en) * | 2019-10-31 | 2021-05-06 | 大成建設株式会社 | Supply method of fluidized soil, and supply system of fluidized soil |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1777305B1 (en) | 2004-08-10 | 2010-09-22 | Mitsubishi Shindoh Co., Ltd. | Copper-base alloy casting with refined crystal grains |
-
1997
- 1997-07-25 JP JP20017797A patent/JP3820467B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007254996A (en) * | 2006-03-22 | 2007-10-04 | Penta Ocean Constr Co Ltd | Lightweight soil placing method |
| JP4697636B2 (en) * | 2006-03-22 | 2011-06-08 | 五洋建設株式会社 | Light soil placement method |
| JP2008308837A (en) * | 2007-06-12 | 2008-12-25 | Ohbayashi Corp | Method and system for manufacturing fluidized soil |
| JP2010270459A (en) * | 2009-05-19 | 2010-12-02 | Ohbayashi Corp | Soil reforming facility and soil reforming method |
| JP2015098699A (en) * | 2013-11-19 | 2015-05-28 | 徳倉建設株式会社 | Delay curing type fluidized soil and filling method of underground cavity |
| JP2021070992A (en) * | 2019-10-31 | 2021-05-06 | 大成建設株式会社 | Supply method of fluidized soil, and supply system of fluidized soil |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3820467B2 (en) | 2006-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107020692A (en) | It is a kind of to prepare curable native complete set of equipments | |
| JPH1143967A (en) | Manufacture of fluidized treated soil for civil work and device therefor | |
| CN112356268B (en) | Slag powder concrete production process and system | |
| CN110593340B (en) | Anti-sticking wheel mortar injection system and method | |
| JP4950825B2 (en) | Method for producing fluidized soil | |
| JP2001132013A (en) | Method and device for fluidization treatment of construction generated earth | |
| JP3844377B2 (en) | Cement mixed soil improvement equipment | |
| JP3605709B2 (en) | Method and apparatus for producing fluidized soil | |
| JPH0551942A (en) | Continuously solidifying device for water-containing sludge | |
| JP3124505B2 (en) | Mud treatment system and mud treatment system for mud method | |
| JP2000120103A (en) | Surplus soil fluidization processing method and facility | |
| JP3370307B2 (en) | Mixing ratio control device for soil improvement machine | |
| JP4086284B2 (en) | Excavation soil treatment equipment | |
| JP2000033996A (en) | Pressure regulating apparatus for auxiliary storage tank, soil improving apparatus with the pressure regulating apparatus, and method for stabilizing quality of improved soil | |
| JP2001227002A (en) | Processing method of dredged earth and device therefor | |
| JPH0811084Y2 (en) | Tunnel building system | |
| JPH108495A (en) | Manufacture of regulating mud type fluidizing-processed soil and its device | |
| JPH0366898A (en) | Soil and sand carryout method in shield method and soil modifying device | |
| JP3183629B2 (en) | Mud treatment system | |
| JP2001140281A (en) | Equipment for fragmentation and mixing | |
| JP2002038519A (en) | Continuous manufacturing method of fluidized soil and fluidized-soil manufacturing plant | |
| JPH0953255A (en) | Soil amendment method of mud | |
| KR200164595Y1 (en) | Theconstruction device of a soil packing by ESC harding soil | |
| JP2824041B2 (en) | Earth removal method and device in earth pressure shield method | |
| JPH11343634A (en) | Method and device for solidifying and force-feeding dredged earth |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040722 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060223 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060228 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060315 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20060509 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20060601 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100630 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100630 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110630 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110630 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120630 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120630 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130630 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130630 Year of fee payment: 7 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130630 Year of fee payment: 7 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| R370 | Written measure of declining of transfer procedure |
Free format text: JAPANESE INTERMEDIATE CODE: R370 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130630 Year of fee payment: 7 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130630 Year of fee payment: 7 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |