JP2907511B2 - Method and apparatus for measuring the concentration of water glass grout and an injection management system using the same - Google Patents
Method and apparatus for measuring the concentration of water glass grout and an injection management system using the sameInfo
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- JP2907511B2 JP2907511B2 JP22375790A JP22375790A JP2907511B2 JP 2907511 B2 JP2907511 B2 JP 2907511B2 JP 22375790 A JP22375790 A JP 22375790A JP 22375790 A JP22375790 A JP 22375790A JP 2907511 B2 JP2907511 B2 JP 2907511B2
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- water glass
- injection
- concentration
- density
- ground
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、水ガラス系グラウト材の地盤注入に際し、
そのライン中間における濃度類測定方法およびその装置
等に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to the injection of water glass grout into the ground,
The present invention relates to a method and a device for measuring concentrations in the middle of the line.
地盤の改良に際して、水ガラス系グラウト材料が汎用
されている。For ground improvement, a water glass grout material is widely used.
この場合、水ガラスに対して硬化剤が添加され、場合
によりその硬化剤の種類が選定され、緩結性グラウトと
瞬結性グラウトとを併用する複合グラウトとされること
もある。In this case, a hardening agent is added to the water glass, and depending on the case, the type of the hardening agent is selected, and sometimes a composite grout is used in which a slow-setting grout and a quick-setting grout are used in combination.
しかるに、この種のグラウト工法では、注入後全ての
注入位置において、注入効果を確認することは実際上不
可能である。したがって、注入するグラウト材料が所定
の濃度・密度を有しているか、または水による希釈が適
切であるかなどについて予め管理する必要がある。However, in this type of grouting method, it is practically impossible to check the injection effect at all injection positions after the injection. Therefore, it is necessary to manage beforehand whether the grout material to be injected has a predetermined concentration and density, or whether dilution with water is appropriate.
従来、地盤注入剤の濃度検出装置としては、たとえば
特公昭57-45648号公報においては、ラジオアイソトープ
（以下、RIという）を用いたγ線密度計に関し、セメン
トミルクまたはモルタルが流れる管に対して、RI対向側
の管体部分に複数の透過γ線検出ユニットを配設し、計
数効率の高い検出システムを構成することによって、漏
洩γ線量を著しく低減し、安全性を高め簡易に利用し得
る濃度測定装置が開示されている。Conventionally, as an apparatus for detecting the concentration of a ground injection agent, for example, Japanese Patent Publication No. 57-45648 relates to a γ-ray density meter using a radioisotope (hereinafter, referred to as RI) for a pipe through which cement milk or mortar flows. By arranging multiple transmission γ-ray detection units on the tube section on the RI-facing side and configuring a detection system with high counting efficiency, the leakage γ dose can be significantly reduced, safety can be improved and safety can be easily used A concentration measuring device is disclosed.
しかし、従来、注入管に供給する稀釈された水ガラス
量については管理されていたが、水ガラスグラウト材の
濃度類については管理が充分でなかった。したがって、
水ガラスを過度に水により希釈して注入することがあ
り、そのため注入効果の不十分により、改良体の強度不
足をもたらすことがある。However, conventionally, the amount of diluted water glass supplied to the injection pipe was controlled, but the concentration of the water glass grout material was not sufficiently controlled. Therefore,
The water glass may be excessively diluted with water and injected, and therefore, an insufficient injection effect may result in insufficient strength of the improved body.
また、前述特公昭57-45648号公報に開示されている装
置に関しては、確かに従来に比して漏洩γ線量が大幅に
低減され、安全性は増したが人体にとって危険なγ線を
利用することの根本的な問題が解消されたわけではな
い。In addition, regarding the device disclosed in the above-mentioned Japanese Patent Publication No. 57-45648, the leaked γ-ray dose is significantly reduced compared to the conventional device, and safety is increased, but γ-rays which are dangerous to the human body are used. The fundamental problem of that has not been solved.
さらに、地盤薬液注入に関しては、注入管による連続
注入が行われるため、濃度、密度、希釈度について注入
ラインにおける連続的な測定方法が望まれる。Furthermore, as for the ground chemical liquid injection, since continuous injection is performed by an injection pipe, a continuous measurement method in an injection line for concentration, density, and dilution degree is desired.
他方、従来の注入管理システム判置では、後の注入確
認において水ガラス濃度が所定値以上となっていたか否
かを確認できなかった。On the other hand, in the conventional injection management system, it was not possible to confirm whether or not the water glass concentration was equal to or higher than a predetermined value in subsequent injection confirmation.
したがって、本発明の主たる課題は、水ガラス系グラ
ウト材の地盤注入ラインにおいて、その濃度類について
連続的に安全かつ精度よく測定する方法および装置等を
提供することにある。また他の課題は、後の注入確認に
おいて水ガラス濃度が所定直以上となっていたか否かを
確認しうる水ガラス系グラウトの注入管理システム判を
提供することにある。Accordingly, a main object of the present invention is to provide a method and an apparatus for continuously and safely measuring the concentrations of water glass-based grout materials in a ground injection line. Another object of the present invention is to provide a water glass grout injection management system which can confirm whether or not the water glass concentration has become equal to or higher than a predetermined value in the subsequent injection confirmation.
上記主たる課題は、〔課題を解決するための手段〕 上記課題は、水ガラス系グラウト材を地盤に注入する
注入ラインにおける、水ガラスの送給路および水ガラス
とその硬化剤とを混合してなる注入材の送給路の少なく
とも一方の送給路に導電率計を配設し、この導電率計に
より前記水ガラスおよび前記注入材の少なくとも一方の
導電率値を得て、 他方、前記注入に先立って予備試験を行い、前記水ガ
ラスおよび前記注入材の少なくとも一方に関して、その
濃度または密度と導電率との関係を得ておき、 前記地盤注入に際して得られる前記導電率直と前記関
係とに基づき、前記水ガラス送給路を流れる水ガラスお
よび前記注入材送給路を流れる注入材の少なくとも一方
に関して、その濃度または密度を測定することで解決で
きる。The main problem is [Means for solving the problem] The problem is to mix a water glass feed path and a water glass and its hardener in an injection line for injecting a water glass grout material into the ground. A conductivity meter is provided in at least one of the feeding paths of the injection material, and the conductivity meter is used to obtain a conductivity value of at least one of the water glass and the injection material. Prior to conducting a preliminary test, for at least one of the water glass and the injection material, to obtain a relationship between the concentration or density and the conductivity, based on the conductivity directly obtained at the time of the ground injection and the relationship The problem can be solved by measuring the concentration or density of at least one of the water glass flowing through the water glass supply path and the injection material flowing through the injection material supply path.
また、その装置としては、水ガラス系グラウト材を地
盤に注入する注入ラインにおける、水ガラスの送給路お
よび水ガラスとその硬化剤とを混合してなる注入材の送
給路のうち少なくとも一方の送給路に配設された導電率
計と； 地盤注入に先立って行われた予備試験から得られる、
前記水ガラスおよび前記注入材の少なくとも一方に関す
る、濃度または密度と導電率との関係が予め記憶される
とともに、 地盤注入に際し前記導電率計により計測された導電率
直が入力され、この入力値と前記関係とに基づき、前記
水ガラス送給路を流れる水ガラスおよび前記注入材送給
路を流れる注入材の少なくとも一方に関する、濃度また
は密度を算出する演算装置と； からなるものを提案する。In addition, as the device, at least one of a water glass feed path and a feed path of an injection material obtained by mixing water glass and its hardener in an injection line for injecting a water glass grout material into the ground. A conductivity meter disposed in the feed line of the ground; obtained from preliminary tests performed prior to ground injection,
For at least one of the water glass and the injection material, the relationship between the concentration or density and the conductivity is stored in advance, and at the time of ground injection, the conductivity measured by the conductivity meter is input, and the input value and the input value A computing device for calculating a concentration or a density of at least one of the water glass flowing through the water glass supply path and the injection material flowing through the injection material supply path based on the relationship.
一方、他の課題は、水ガラスおよび硬化剤を収容する
それぞれの容器と、前記水ガラスおよび硬化剤を地盤注
入管まで送給するポンプと、前記ポンプによって送られ
た水ガラスおよび硬化剤を混合し地盤に注入するための
注入管と、前記水ガラス送給経路の中間に配される流量
計と、この流量計による計測値を記録する記録装置とか
らなる水ガラス系グラウトの注入システム装置におい
て、 前記水ガラス送給経路の中間に設けられた濃度類測定
装置と、この濃度類測定装置からの測定値と予め設定さ
れる設定濃度値との大小の比較を行う比較器とを備え、
前記測定濃度値が設定濃度未満の場合には、前記記録装
置による記録を行わないようにするとともに、 前記濃度類測定装置として、請求項２記載の水ガラス
系グラウトの濃度類測定装置を用いることで解決でき
る。On the other hand, another problem is that each of the containers containing water glass and the hardener, a pump for feeding the water glass and the hardener to the ground injection pipe, and mixing the water glass and the hardener sent by the pump. An injection pipe for injecting into the ground, a flow meter disposed in the middle of the water glass supply path, and a recording apparatus for recording a measurement value by the flow meter, a water glass grout injection system device. A concentration class measuring device provided in the middle of the water glass supply path, and a comparator for comparing the measured value from the concentration class measuring device with a preset density value,
When the measured density value is lower than the set density, the recording by the recording device is not performed, and the density measuring device for water glass grout according to claim 2 is used as the density measuring device. Can be solved.
導電性のある液体は、それぞれ濃度、密度に応じて固
有の電気抵抗値を持ち、その濃度等の変化に応じて前記
抵抗値が刻々変化する。したがって、予め、前記水ガラ
スおよび前記注入材の少なくとも一方に関してその濃度
（混合比）または密度と導電率との関係を把握しておけ
ば、地盤注入ラインの中間で導電率計により、水によっ
て希釈された水ガラス水溶液や、水ガラスと硬化剤とを
混合してなる地盤注入溶液の導電率の測定を行うこと
で、前記関係に基づいて、その濃度類を連続的かつ安全
に精度良く測定することが可能となる。The conductive liquid has a specific electric resistance value according to the concentration and density, respectively, and the resistance value changes every moment according to a change in the concentration and the like. Therefore, if the concentration (mixing ratio) or the relationship between the density and the conductivity of at least one of the water glass and the injection material is grasped in advance, the water is diluted with water by a conductivity meter in the middle of the ground injection line. By measuring the conductivity of the ground water solution obtained by mixing a water glass aqueous solution or a water glass and a curing agent, the concentrations thereof are continuously, safely, and accurately measured based on the above relationship. It becomes possible.
なお、前記地盤注入ラインとは、水ガラス原液が投入
される位置から注入管によって注入材が地盤中に注入さ
れるまでの間のラインをいう。また、本発明にいう濃度
類とは、水ガラスに対する水の混合割合、水ガラスに対
する硬化剤の混合割合、およびそれら混合物の密度を含
互、特に前記の水ガラスが水によって混合される場合に
は希釈度をいう。The ground injection line is a line from the position where the undiluted water glass is charged to the point where the injection material is injected into the ground by the injection pipe. The concentrations referred to in the present invention include the mixing ratio of water to water glass, the mixing ratio of a curing agent to water glass, and the density of the mixture, particularly when the water glass is mixed with water. Refers to the degree of dilution.
以下本発明を図面を参照しながら実施例によりさらに
詳説する。Hereinafter, the present invention will be described in more detail with reference to the drawings.
第１図に示されているように、水ガラスＧおよび硬化
剤Ｐは、それぞれ水ガラスタンク１、硬化剤タンク２に
収容されており、前記の水ガラスＧは、地盤17に対して
挿入される注入管８に対して複連式注入ポンプ３により
に送給される。また、同様に、硬化剤タンク２に収容さ
れる硬化剤Ｐについても複連式注入ポンプ３により、注
入管８に送給され、水ガラスＧと注入管８の手前または
管内で合流され、周辺地盤17に注入される。As shown in FIG. 1, a water glass G and a hardener P are contained in a water glass tank 1 and a hardener tank 2, respectively, and the water glass G is inserted into the ground 17 respectively. Is supplied by the double-type injection pump 3 to the injection tube 8. Similarly, the hardening agent P contained in the hardening agent tank 2 is also fed to the injection pipe 8 by the double-type injection pump 3 and merges with the water glass G before or in the injection pipe 8 and the surroundings. Injected into the ground 17.
かかる実際の注入現場においても、水ガラスＧの密度
および濃度などの管理が、所期の改良体を得る上で需要
である。そこで、水ガラスＧ送給管路に導電率計４が設
けられている。また、同時に水ガラスＧの流量および圧
力測定のための流量計５および圧力計６が同時に設けら
れ、検出部Ｆを構成している。一方、硬化剤供給管にお
いても、たとえば鎖線で示されるように、流量計７を設
けることもできる。Even at the actual injection site, management of the density and concentration of the water glass G is a demand for obtaining the desired improved body. Therefore, the conductivity meter 4 is provided in the water glass G supply pipe. At the same time, a flow meter 5 and a pressure gauge 6 for measuring the flow rate and the pressure of the water glass G are provided at the same time, and constitute a detection unit F. On the other hand, a flow meter 7 can also be provided in the curing agent supply pipe, for example, as indicated by a chain line.
前記導電率計４での計測信号は、演算器９および比較
器11を介して、記録計14に送られる。前記演算器９内で
は、後述するように、前記導電率計４による計測値に基
づき濃度・密度類の算出を行い、比較器11においては、
予め設定される濃度値と測定された濃度値との大小の比
較を行い、この信号をスイッチ制御器10に送るようにな
っている。流量計５の計測信号は、スイッチ制御器10を
介して記録計14に送られる。また、圧力計６による圧力
計測信号は直接記録計14に送られる。各計測データにつ
いては、記録計14により記録されるとともに、データレ
コーダー15にも記録される。The measurement signal from the conductivity meter 4 is sent to the recorder 14 via the calculator 9 and the comparator 11. In the computing unit 9, as will be described later, the concentration / density is calculated based on the value measured by the conductivity meter 4.
The magnitude of the preset density value is compared with the measured density value, and this signal is sent to the switch controller 10. The measurement signal of the flow meter 5 is sent to the recorder 14 via the switch controller 10. The pressure measurement signal from the pressure gauge 6 is sent directly to the recorder 14. Each measurement data is recorded by the recorder 14 and also in the data recorder 15.
前記スイッチ制御器10においては、前記流量計５の信
号ケーブルの信号オンオフスイッチ10bと警告表示ラン
プ12への電流オンオフスイッチ10aが設けられており、
後に詳述するように、前記比較器11からの信号に基づい
て、各スイッチの切換えを行うようになっている。な
お、13は流量指示計である。In the switch controller 10, a signal on / off switch 10b of a signal cable of the flow meter 5 and a current on / off switch 10a for a warning display lamp 12 are provided,
As described later in detail, each switch is switched based on a signal from the comparator 11. Reference numeral 13 denotes a flow indicator.
かかる装置においては、たとえば注入管８に送給され
る水ガラスＧが所定の濃度以上である場合（正常時）に
は、前記比較器11がその状態を検出し、スイッチ制御器
10のオンオフスイッチ10bはオンの状態、またオンオフ
スイッチ10aはオフの状態に制御する。この場合には流
量計５の計測データは記録計14に送られるため、正常に
記録される。しかし、注入管８に送給される水ガラスＧ
が所定の濃度未満となった場合（異常時）には、前記比
較器11がその状態を検出し、スイッチ制御器10のオンオ
フスイッチ10bはオフの状態、またオンオフスイッチ10a
はオンの状態に制御し、流量計５の計測データ送信をカ
ットするとともに、前記警告表示ランプを点滅させ作業
者に知らせる。したがって、後の注入確認において、流
量計５のデータが記録されてない場合には、不適合な濃
度の水ガラスが地盤17に注入されたことが判明されるた
め、注入管理が万全となる。なお、前述のように水ガラ
スが不適合な濃度である場合は、記録計14に記録されな
いが、現水ガラス送給量については、流量指示計13によ
り知ることができる。In such a device, for example, when the water glass G supplied to the injection pipe 8 has a predetermined concentration or more (in a normal state), the comparator 11 detects the state, and the switch controller
The on / off switch 10b is controlled to be on and the on / off switch 10a is controlled to be off. In this case, since the measurement data of the flow meter 5 is sent to the recorder 14, it is normally recorded. However, the water glass G fed to the injection pipe 8
Is lower than the predetermined concentration (in the case of an abnormality), the comparator 11 detects the state, and the on / off switch 10b of the switch controller 10 is in the off state, and the on / off switch 10a
Is turned on to cut off the transmission of the measurement data from the flow meter 5 and to flash the warning display lamp to notify the operator. Therefore, if the data of the flow meter 5 is not recorded in the subsequent injection confirmation, it is determined that the water glass of an inappropriate concentration has been injected into the ground 17, and the injection management is thorough. As described above, when the water glass has an inappropriate concentration, it is not recorded in the recorder 14, but the current water glass feed amount can be known by the flow indicator 13.
次に、前記地盤注入ラインの中間に配設される導電率
計４による密度、濃度類の算出について詳述する。Next, the calculation of the density and concentration by the conductivity meter 4 disposed in the middle of the ground injection line will be described in detail.
前述したように、水ガラスのように導電性のある液体
については、導電率と濃度と密度の間には強い相関関係
にある。As described above, for a conductive liquid such as water glass, there is a strong correlation between conductivity, concentration, and density.
たとえば、JIS3号水ガラスについて行った試験結果を
第２図に示す。第２図は縦軸に導電率と密度を示し、横
軸には水ガラス濃度（希釈液は水である。）を示す。ま
た、ライン１は密度−水ガラス濃度を示し、ライン２は
導電率−水ガラス濃度を示す。For example, FIG. 2 shows the results of a test performed on JIS No. 3 water glass. In FIG. 2, the ordinate indicates the conductivity and the density, and the abscissa indicates the water glass concentration (the diluent is water). Line 1 shows the density-water glass concentration, and line 2 shows the conductivity-water glass concentration.
試験は富士科学（株）製と日本合成科学（株）製の２
種類のJIS3号水ガラスについて行った。The tests were performed by Fuji Scientific Co., Ltd. and Nippon Synthetic Science Co., Ltd.
The test was performed on various types of JIS No. 3 water glass.
なお、水ガラスの液温については20℃として計測を行っ
ている。The measurement was performed with the liquid temperature of the water glass set at 20 ° C.
第２図に示されるように、導電率と水ガラス濃度と密
度間においては、高い精度で良好な一定の相関関係があ
ることが判明される。したがって、導電率が計測され既
知となることで、水ガラスの濃度および密度が明らかと
なる。なお、水ガラス濃度60％を超える範囲について
は、多少精度が粗くなるが、通常水ガラスが水によって
50％以内に希釈されるため、実際上は問題とならない。
このように、予め水ガラスと混合される水または硬化剤
の量（濃度）に応じた導電率と密度との関係を把握し、
演算器９に入力しておくことによって、測定される導電
率との関係において、高精度かつ連続的に濃度、密度を
算出することが可能となる。As shown in FIG. 2, it is found that there is a good and constant correlation between the conductivity, the water glass concentration and the density with high accuracy. Therefore, when the conductivity is measured and becomes known, the concentration and density of the water glass become clear. In the range where the water glass concentration exceeds 60%, the accuracy is somewhat coarse.
Since it is diluted within 50%, there is no practical problem.
In this way, the relationship between the conductivity and the density according to the amount (concentration) of water or a curing agent mixed with the water glass in advance is grasped,
By inputting the values to the computing unit 9, it is possible to continuously and accurately calculate the concentration and density in relation to the measured conductivity.
なお、導電率計４の取付けに際しては、第３図に示さ
れるように、水ガラス等が流れる管体に対して、その上
方部位では空隙が生じ測定精度を維持できない場合があ
るため、管体の側方もしくは下方部位に取付けるのが望
ましい。When the conductivity meter 4 is attached, as shown in FIG. 3, a gap may be formed in a portion above the tube through which water glass or the like flows and measurement accuracy cannot be maintained. It is desirable to attach to the side or the lower part of.
以上のように、地盤注入ラインの適所において導電率
計４を用い、その濃度、密度を把握することによって、
地盤注入剤の濃度および密度管理が確実に行え、水ガラ
ス系グラウト材の注入領域において、所期の強度を得る
ことができる。As described above, by using the conductivity meter 4 at an appropriate place in the ground injection line and grasping its concentration and density,
The concentration and density of the ground injection agent can be reliably controlled, and the desired strength can be obtained in the injection region of the water glass grout material.
以上の通り、本発明によれば、水ガラス系グラウトの
地盤注入ラインの中間において、注入液剤の濃度類を連
続的に安全かつ精度よく測定することができ、もって地
盤注入の確実を図ることができる。As described above, according to the present invention, in the middle of the ground injection line of water glass grout, it is possible to continuously and safely measure the concentration of the injection liquid agent, and thus to ensure the ground injection. it can.
第１図本発明の実施例を示すフローシートを示す図、第
２図はJIS 3号水ガラス水溶液の導電率と密度と濃度の
関係を表した図、第３図は導電率計の取付け図を示す図
である。 １……水ガラスタンク、２……硬化剤タンク、３……複
連式ポンプ、４……導電率計、５……流量計、６……圧
力計、８……注入管、９……演算器、10……スイッチ制
御器、11……比較器、12……警告表示ランプ、13……流
量指示計、14……記録計、15……データレコーダーFIG. 1 is a view showing a flow sheet showing an embodiment of the present invention, FIG. 2 is a view showing the relationship between the conductivity, density and concentration of a JIS No. 3 water glass aqueous solution, and FIG. FIG. DESCRIPTION OF SYMBOLS 1 ... Water glass tank, 2 ... Hardener tank, 3 ... Double pump, 4 ... Conductivity meter, 5 ... Flowmeter, 6 ... Pressure gauge, 8 ... Injection pipe, 9 ... Computing unit, 10: Switch controller, 11: Comparator, 12: Warning lamp, 13: Flow indicator, 14: Recorder, 15: Data recorder
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭58−204212（ＪＰ，Ａ) 特開 昭52−125526（ＪＰ，Ａ) 特開 昭61−221410（ＪＰ，Ａ) 特開 昭59−102148（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) G01N 27/00 - 27/24 E02D 3/12 - 3/12 103 E04G 21/02 101 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-204212 (JP, A) JP-A-52-125526 (JP, A) JP-A-61-221410 (JP, A) 102148 (JP, A) (58) Field surveyed (Int. Cl. 6 , DB name) G01N 27/00-27/24 E02D 3/12-3/12 103 E04G 21/02 101
Claims (3)
入ラインにおける、水ガラスの送給路および水ガラスと
その硬化剤とを混合してなる注入材の送給路の少なくと
も一方の送給路に導電率計を配設し、この導電率計によ
り前記水ガラスおよび前記注入材の少なくとも一方の導
電率値を得て、 他方、前記注入に先立って予備試験を行い、前記水ガラ
スおよび前記注入材の少なくとも一方に関して、その濃
度または密度と導電率との関係を得ておき、 前記地盤注入に際して得られる前記導電率値と前記関係
とに基づき、前記水ガラス送給路を流れる水ガラスおよ
び前記注入材送給路を流れる注入材の少なくとも一方に
関して、その濃度または密度を測定することを特徴とす
る水ガラス系グラウトの濃度類測定方法。1. A feed line for water glass and / or at least one of a feed path for an injection material obtained by mixing water glass and its hardener in an injection line for injecting a water glass grout material into the ground. A conductivity meter is provided on the path, and the conductivity value of at least one of the water glass and the injection material is obtained by the conductivity meter. On the other hand, a preliminary test is performed prior to the injection, and the water glass and the Regarding at least one of the injection materials, a relationship between the concentration or density and the electrical conductivity is obtained in advance, and based on the electrical conductivity value and the relationship obtained at the time of the ground injection, water glass flowing through the water glass feed path and A method for measuring the concentration of water-glass grout, comprising measuring the concentration or density of at least one of the injection materials flowing through the injection material supply path.
入ラインにおける、水ガラスの送給路および水ガラスと
その硬化剤とを混合してなる注入材の送給路のうち少な
くとも一方の送給路に配設された導電率計と； 地盤注入に先立って行われた予備試験から得られる、前
記水ガラスおよび前記注入材の少なくとも一方に関す
る、濃度または密度と導電率との関係が予め記憶される
とともに、 地盤注入に際し前記導電率計により計測された導電率値
が入力され、この入力値と前記関係とに基づき、前記水
ガラス送給路を流れる水ガラスおよび前記注入材送給路
を流れる注入材の少なくとも一方に関する、濃度または
密度を算出する演算装置と； からなることを特徴とする水ガラス系グラウトの濃度類
測定装置。2. A feed line for injecting a water glass grout material into the ground, at least one of a water glass feed path and a feed path of an injection material obtained by mixing water glass and its hardener. A conductivity meter disposed in a supply path; and a relationship between concentration or density and conductivity of at least one of the water glass and the injection material obtained from a preliminary test performed prior to ground injection. The conductivity value measured by the conductivity meter at the time of ground injection is input, and based on the input value and the relationship, the water glass flowing through the water glass feed path and the injection material feed path are formed. A calculating device for calculating the concentration or density of at least one of the flowing pouring materials; and a water glass grout concentration measuring device.
の容器と、前記水ガラスおよび硬化剤を地盤注入管まで
送給するポンプと、前記ポンプによって送られた水ガラ
スおよび硬化剤を混合し地盤に注入するための注入管
と、前記水ガラス送給経路の中間に配される流量計と、
この流量計による計測値を記録する記録装置とからなる
水ガラス系グラウトの注入システム装置において、 前記水ガラス送給経路の中間に設けられた濃度類測定装
置と、この濃度類測定装置からの測定値と予め設定され
る設定濃度値との大小の比較を行う比較器とを備え、前
記測定濃度値が設定濃度未満の場合には、前記記録装置
による記録を行わないようにするとともに、 前記濃度類測定装置として、請求項２記載の水ガラス系
グラウトの濃度類測定装置を用いることを特徴とする水
ガラス系グラウトの注入管理システム装置。3. A container for containing water glass and a hardener, a pump for feeding the water glass and the hardener to a ground injection pipe, and a ground for mixing the water glass and the hardener sent by the pump. An injection pipe for injecting the water glass, a flow meter arranged in the middle of the water glass supply path,
In a water glass grout injection system device comprising a recording device for recording a measurement value obtained by the flow meter, a concentration measuring device provided in the middle of the water glass feeding path, and a measurement from the concentration measuring device. A comparator that compares the value with a preset density value, and when the measured density value is less than the preset density, the recording device does not perform recording. A water glass-based grout injection management system apparatus, wherein the water-glass-based grout concentration measuring apparatus according to claim 2 is used as the kind-based measuring apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22375790A JP2907511B2 (en) | 1990-08-24 | 1990-08-24 | Method and apparatus for measuring the concentration of water glass grout and an injection management system using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22375790A JP2907511B2 (en) | 1990-08-24 | 1990-08-24 | Method and apparatus for measuring the concentration of water glass grout and an injection management system using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04105064A JPH04105064A (en) | 1992-04-07 |
| JP2907511B2 true JP2907511B2 (en) | 1999-06-21 |
Family
ID=16803236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22375790A Expired - Fee Related JP2907511B2 (en) | 1990-08-24 | 1990-08-24 | Method and apparatus for measuring the concentration of water glass grout and an injection management system using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2907511B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101427892B1 (en) * | 2014-03-10 | 2014-08-07 | 권영환 | Apparatus for measuring flow rate and pressure of grout material |
-
1990
- 1990-08-24 JP JP22375790A patent/JP2907511B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101427892B1 (en) * | 2014-03-10 | 2014-08-07 | 권영환 | Apparatus for measuring flow rate and pressure of grout material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04105064A (en) | 1992-04-07 |
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