JPH0489912A - Grouting construction method - Google Patents
Grouting construction methodInfo
- Publication number
- JPH0489912A JPH0489912A JP20128690A JP20128690A JPH0489912A JP H0489912 A JPH0489912 A JP H0489912A JP 20128690 A JP20128690 A JP 20128690A JP 20128690 A JP20128690 A JP 20128690A JP H0489912 A JPH0489912 A JP H0489912A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- gelation time
- basic material
- injection
- time
- 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
- 238000010276 construction Methods 0.000 title description 4
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 238000001879 gelation Methods 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 27
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 17
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000002347 injection Methods 0.000 claims description 35
- 239000007924 injection Substances 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 11
- 239000000376 reactant Substances 0.000 claims description 10
- 239000004480 active ingredient Substances 0.000 claims description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims 1
- -1 aluminum compound Chemical class 0.000 abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 abstract description 11
- 239000011440 grout Substances 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 12
- 238000002156 mixing Methods 0.000 description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 239000000499 gel Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 4
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 4
- 229910017053 inorganic salt Inorganic materials 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000003349 gelling agent Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 108091006629 SLC13A2 Proteins 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- COOGPNLGKIHLSK-UHFFFAOYSA-N aluminium sulfide Chemical compound [Al+3].[Al+3].[S-2].[S-2].[S-2] COOGPNLGKIHLSK-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は地盤中に特定の注入液を注入して地盤を固結す
る地盤注入工法に係り、詳細には注入液のゲル化時間調
整が容易で、かつ浸透性に優れた地盤注入工法に関する
。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a ground injection method for solidifying the ground by injecting a specific injection liquid into the ground. This article relates to a ground injection method that is easy and has excellent permeability.
地盤固結用注入液として、従来、水ガラス水溶液に、無
機塩−有機塩あるいはグリオキザールやエステル類、さ
らにはセメント等を加えてゲル化せしめる水ガラスグラ
ウトが知られている。As an injection solution for ground consolidation, water glass grout is conventionally known, which is made by adding inorganic salts/organic salts, glyoxal, esters, cement, etc. to an aqueous water glass solution to form a gel.
上述において、無機塩として水溶性無機塩を用いたもの
はゲル化時間の調整にあたってわずかな無機塩量の違い
でゲル化時間が大幅に変化し、あるいはわずかに過少で
あるだけで全くゲル化しないという現象が生じ、このた
め固結が不確実であった。In the above, when a water-soluble inorganic salt is used as the inorganic salt, when adjusting the gelation time, a slight difference in the amount of inorganic salt can cause a significant change in the gelation time, or a slight difference in the amount of inorganic salt may cause no gelation at all. This phenomenon occurred, and as a result, consolidation was uncertain.
また、難溶性無機塩やセメントの例では、浸透性が悪く
、さらには上述有機系の例では地下水のＢＯＤやＣＯＤ
を増加させるという問題があった。In addition, in the case of poorly soluble inorganic salts and cement, permeability is poor, and furthermore, in the above-mentioned organic examples, groundwater BOD and COD
There was a problem of increasing the
上述の各側において、特に水溶性無機塩を用いる場合、
このゲル化を確実に行い、かつゲル化時間の調整を容易
に行なえれば極めて有用な注入液となることが期待され
る。On each side of the above, especially when using water-soluble inorganic salts,
If this gelation can be performed reliably and the gelation time can be easily adjusted, it is expected that an extremely useful injection solution will be produced.
そこで、この期待を実現するために、３号水ガラスにあ
らかじめＮａＣ１、Ｋ（ｌあるいはアルカリ土金属塩を
混合したものをＡ液とし、他の反応剤水溶液をＢ液とし
、これらＡ、Ｂ液を組み合わせる注入工法が提案されて
いる。しかし、３ｇ水ガラスにＮａＣ１、Ｋ（ｌあるい
はアルカリ土金属塩を混合すると、混合液中にコロイド
が急激に形成されるため、Ａ液を製造してからＢ液を加
えるまでの経過時間の違いによりゲル化時間が大幅に異
なり、ゲル化時間の調整がしにくいという問題があった
。Therefore, in order to realize this expectation, we prepared No. 3 water glass mixed with NaC1, K (l) or alkaline earth metal salts as liquid A, and an aqueous solution of other reactants as liquid B. However, when 3g of water glass is mixed with NaCl, K(l) or alkaline earth metal salts, colloids are rapidly formed in the mixed solution, so There was a problem in that the gelation time varied greatly depending on the elapsed time until the addition of the B solution, making it difficult to adjust the gelation time.
また、水ガラスに強酸を加えて形成される酸性水ガラス
を基本素材とし、これにアルカリ剤を加える注入工法も
知られているが、この場合、強酸を用いることによる現
場における取り扱い上の問題や、ゲル化時間が調整しに
くいという欠点を有している。Another known method is to use acid water glass as the basic material, which is formed by adding strong acid to water glass, and add an alkaline agent to it. However, it has the disadvantage that the gelation time is difficult to adjust.
水ガラスと反応剤をあらかじめ混合してなるそれ自体ゲ
ル化し得る配合液を基本素材とし、これにゲル化剤を加
えてなる方法は、基本素材が必ずゲル化するため、これ
にゲル化剤を加えてゲル化時間を調整した注入液も必ず
ゲル化し、地盤中における固結性が極めて優れていると
いう長所がある。A method in which the basic material is a liquid mixture that can be gelled by itself, which is a mixture of water glass and a reactant in advance, and a gelling agent is added to this, because the basic material always gels. In addition, the injection solution whose gelation time has been adjusted always gels, and has the advantage that it has extremely good solidification properties in the ground.
しかし、この方法の最大の欠点は基本素材を配合後、そ
の内部でコロイドの生成が急速に進行し、その生成は配
合後から注入に至るまでの時間の経過につれて加速され
る。したがって、この基本素材（Ａ液）にゲル化剤（Ｂ
液）を加えてゲル化時間を調整しようとしても、Ａ、Ｂ
混合液のゲル化時間は基本素材（Ａ液）の配合時からＡ
液にＢ液を混合するまでの経過時間によってゲル化時間
が異なり、所定のゲル化時間を得ることが極めて難しい
。However, the biggest drawback of this method is that after the basic materials are blended, the production of colloids proceeds rapidly within them, and the production accelerates as time passes from blending to injection. Therefore, this basic material (liquid A) has a gelling agent (B
Even if you try to adjust the gelation time by adding liquid), A and B
The gelation time of the mixed liquid is A from the time of blending the basic material (liquid A).
The gelation time varies depending on the elapsed time until the liquid B is mixed with the liquid, and it is extremely difficult to obtain a predetermined gelation time.
実際の現場では、基本素材であるＡ液を作液してからＡ
、Ｂ液を混合して注入に至るまでに種々の作業、たとえ
ば注入工程中の注入ステージの変化による注入の中止、
注入管の詰まりによる水洗い、その他のトラブル等によ
る注入の一時中断、昼休みの注入の中断、ポンプの調整
等が生じ、あるいはその他、Ｂ液そのものの配合の調整
、個々の注入管に至るまでの距離の違い等によりＡ液に
Ｂ液を混合して注入する状態になるまでに多かれ少なか
れ、時間を要し、その時間も一定のものではない。した
がって、もし、Ａ液を配合後Ｂ液を加えるまでの経過時
間の長短にもかかわらず、ゲル化時間が変化しにくい方
法を見い出せれば、この注入方式はゲル化時間の設定が
容易な工法として極めて優れた、実用性の高い工法にな
り得るはずである。At the actual site, the basic material, liquid A, is prepared, and then A
, various operations from mixing the B solution to injection, such as stopping the injection due to a change in the injection stage during the injection process,
Flushing due to clogging of the injection tube, temporary suspension of injection due to other problems, suspension of injection during lunch break, adjustment of pump, etc., adjustment of the composition of liquid B itself, distance to each injection tube, etc. It takes more or less time to mix and inject the B liquid with the A liquid due to the difference, and the time is not constant. Therefore, if we can find a method in which the gelation time is less likely to change regardless of the length of time that elapses between blending Part A and adding Part B, this injection method would be a method that would allow easy setting of the gelation time. This should be an excellent and highly practical construction method.
また、施工が大規模になると、−時に大量の注入素材を
つくり、それから多数のポンプを用いて多数の注入管に
送液し、それぞれにゲル化剤を加えてゲル化時間を調整
し、注入することになるが、−時につくられる注入素材
量が多いほど注入が始まってからその注入素材が使い尽
くされるまでに時間がかかるから、その間の時間の経過
にもかかわらず、ゲル化時間の変動が少なければ大量施
工に適した注入工法が可能になる。In addition, when construction becomes large-scale, a large amount of injection material is sometimes made, and then multiple pumps are used to send the liquid to many injection pipes, a gelling agent is added to each, the gelation time is adjusted, and the injection material is injected. However, the larger the amount of injection material produced at the time, the longer it takes from the start of injection until the injection material is used up, so the gelation time will fluctuate regardless of the elapsed time. If the amount is small, an injection method suitable for mass construction becomes possible.
そこで、本発明の目的はゲル化時間の調整が容易で、か
つ浸透性に優れ、前述の公知技術に存する欠点を改良し
た地盤注入工法を提供することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a ground injection method that allows easy adjustment of gelation time, has excellent permeability, and improves the drawbacks of the above-mentioned known techniques.
前述の目的を達成するたｔ、本発明によれば、水ガラス
とアルミニウム化合物を有効成分とするアルカリ性配合
液を基本素材とし、この基本素材に反応剤を添加してゲ
ル化時間を調整してなるアルカリ性注入液を地盤中に注
入することを特徴とする。In order to achieve the above object, according to the present invention, an alkaline liquid mixture containing water glass and an aluminum compound as active ingredients is used as a basic material, and a reactant is added to this basic material to adjust the gelation time. It is characterized by injecting an alkaline injection liquid into the ground.
上述の本発明において、水ガラスとしてはモル比が５．
０〜０．５０流状または粉状の水ガラスを用い、あるい
は水ガラスと硫酸やアルカリの混合物であってもよい。In the above-described present invention, the water glass has a molar ratio of 5.
0 to 0.50 Flow or powder water glass may be used, or a mixture of water glass and sulfuric acid or alkali may be used.
また、アルミニウム化合物としては、塩化アルミニウム
、ポリ塩化アルミニウム、硫酸アルミニウム、みょうば
ん等のアルミニウムの塩化物、硫酸塩、硫化アルミニウ
ム、水酸化アルミニウムを例として挙げることができる
。Examples of the aluminum compound include aluminum chloride, polyaluminum chloride, aluminum sulfate, aluminum chloride such as alum, sulfate, aluminum sulfide, and aluminum hydroxide.
さらに、前記基本素材に添加する反応剤とじては、無機
塩、無機酸、有機反応剤、セメント、スラグ、石灰等、
任意のものが用いられる。Furthermore, the reactants added to the basic materials include inorganic salts, inorganic acids, organic reactants, cement, slag, lime, etc.
Any one can be used.
上述の基本素材はゲル化時間が１時間以上を有し、かつ
アルカリ性であって、この基本素材に反応剤を加えてな
る注入液もまた、アルカリ性を呈するものである。The basic material described above has a gelation time of 1 hour or more and is alkaline, and the injection solution prepared by adding a reactant to this basic material also exhibits alkalinity.
以下、本発明を実験によって詳述する。Hereinafter, the present invention will be explained in detail through experiments.
Ａ液およびＢ液を表−１，２に示すように調整する。Adjust liquid A and liquid B as shown in Tables 1 and 2.
表
実験−１
表−１に示されるＡ液を配合の後、これに表２のＢ液を
混合するまでの時間に対応してゲル化時間（２０℃）を
測定した。Ａ、Ｂ液を同量づつ合流混合した急結配合の
経過時間（時間）に対するゲル化時間（秒）の試験結果
（２０℃）を第１図に示す。Table Experiment 1 After blending Solution A shown in Table 1, the gelation time (20° C.) was measured corresponding to the time taken until Solution B in Table 2 was mixed therewith. FIG. 1 shows the test results (at 20° C.) of gelation time (seconds) versus elapsed time (hours) for a rapid setting formulation in which equal amounts of liquids A and B were mixed together.
Ａ、Ｂ液の組み合わせは第１図中、■はＡ−１：Ｂ−１
、■はＡ−２：Ｂ−Ｌ■はＡ−３：Ｂ−１、■はＡ−４
：Ｂ−ｔ、ｏはＡ−５： Ｂ−ＩＤはＡ−６：Ｂ−１、
■はＡ−７：Ｂ−１である。The combination of A and B liquids is shown in Figure 1, ■ is A-1:B-1.
,■ is A-2:B-L■ is A-3:B-1, ■ is A-4
:B-t, o is A-5: B-ID is A-6:B-1,
(2) is A-7:B-1.
第１図より、Ａ液として塩化カルシウム（Ｍｇ塩も同様
）のようなアルカリ土金属塩、塩化ナトリウムのような
アルカリ金属塩を用いた場合には経過時間とともにゲル
化時間が大幅に変動するこ−がわかる。これは塩化ナト
リウム等のアルカリ金属塩、あるいはアルカリ土金属塩
はコロイドの３成が配合直後から急速に進み、かつその
構造が玉均質であるため、これにＢ液を加えた場合、ゲ
ノ化に大きく彩管するものと思われる。Figure 1 shows that when an alkaline earth metal salt such as calcium chloride (same as Mg salt) or an alkali metal salt such as sodium chloride is used as solution A, the gelation time changes significantly with elapsed time. - I understand. This is because with alkali metal salts such as sodium chloride or alkaline earth metal salts, the tertiary formation of colloids proceeds rapidly immediately after mixing, and the structure is homogeneous, so when Solution B is added to this, genization will not occur. It seems that it will be greatly colored.
それに対して試料番号Ａ−５〜Ａ−７の本発明ではＡ液
配合の後長時間を経てもゲル化時間の変動が極めて少な
い領域があることがわかる。ただし、Ａ液のゲル化時間
が６０分よりも短い場合はゲル化時間は比較的短縮しや
すくなることがわかる。On the other hand, it can be seen that in sample numbers A-5 to A-7 of the present invention, there is a region where the gelation time fluctuates very little even after a long period of time after the A liquid is mixed. However, it can be seen that when the gelation time of liquid A is shorter than 60 minutes, the gelation time can be relatively easily shortened.
これより基本素材のゲル化時間は６０分よりも長い方が
望ましいことがわかる。From this, it can be seen that it is desirable that the gelation time of the basic material be longer than 60 minutes.
実験−２
実験−１と同様にＡ液とＢ液を同量づづ混合した緩結配
合の例を第２図に示す。Ａ、Ｂ液の組み合わせは■はＡ
−１：Ｂ−２、■はＡ−３：Ｂ−２、■はＡ−２：Ｂ−
４、■はＡ〜４：Ｂ−３、■はＡ−２：Ｂ−５、■はＡ
−５：Ｂ−５、■はＡ−５：Ｂ−４、■はＡ−７：Ｂ−
３０はＡ−６：Ｂ−２である。Experiment-2 Figure 2 shows an example of a slow-setting mixture in which equal amounts of liquid A and liquid B were mixed in the same manner as in experiment-1. The combination of A and B liquids is A.
-1:B-2, ■ is A-3:B-2, ■ is A-2:B-
4, ■ is A-4:B-3, ■ is A-2:B-5, ■ is A
-5:B-5, ■ is A-5:B-4, ■ is A-7:B-
30 is A-6:B-2.
第２図より緩結性グラウトの場合も、実験−１と同様の
傾向があることがわかる。From FIG. 2, it can be seen that the same tendency as in Experiment 1 exists in the case of slow-setting grout.
本発明におけるアルミニウム化合物を用いることにより
、Ａ液配合後長時間経過後にＢ液を加えてもゲル化時間
の変動が少ない領域が存在する理由はおそらく、アルミ
ニウムが両性電解質物質であることや、アルミニウムの
反応がゆるやかなこと、あるいはシリカ分とアルミニウ
ムイオンの入ったシリカコロイドが安定した、凝集しに
くい表面化学的性質を有し、かなりの時間の経過後には
じめて急速にゲル化が進行するという特性をもつためと
思われる。By using the aluminum compound in the present invention, there is a region where there is little variation in gelation time even if liquid B is added after a long period of time after mixing liquid A. The reason for this is probably that aluminum is an amphoteric electrolyte substance, and that aluminum is an amphoteric electrolyte. The reaction is gradual, or the silica colloid containing silica and aluminum ions has a stable surface chemical property that prevents agglomeration, and gelation progresses rapidly only after a considerable period of time. It seems to be for holding.
また、本発明におけるＡ液のゲル化時間は６０分より短
くなると、安定性が少なくなる傾向があるためゲル化時
間の変動がすくない領域がせまくなるものと思われる。Furthermore, if the gelation time of Solution A in the present invention is shorter than 60 minutes, the stability tends to decrease, so it is thought that the region in which the gelation time does not fluctuate little becomes narrower.
したがって、本発明におけるＡ液のゲル化時間は１時間
よりも長いのがより好ましい。Therefore, it is more preferable that the gelation time of liquid A in the present invention is longer than 1 hour.
本発明は前述の注入液特性を利用してすべての注入方式
に用いることができるが、特にＡ液に瞬結用のＢ液を合
流して瞬結グラウトを注入する工程と、Ａ液に緩結用の
Ｂ液を混合して緩結グラウトを注入する工程を組み合わ
せて注入すると注入が極めて効果的に行なえる。The present invention can be used for all injection methods by utilizing the above-mentioned characteristics of the injection liquid, but in particular, it can be used in the process of combining liquid A with liquid B for instant setting and injecting instant setting grout, and in the process of adding liquid A to The injection can be carried out extremely effectively by combining the steps of mixing the bonding liquid B and injecting the slow setting grout.
また、上述において、Ａ液は水ガラスとアルミニウム化
合物を必須としてこれに反応剤を加えたものであっても
よい。さらに基本素材の作液に当てては水ガラスとアル
ミニウム化合物を任意に混合することもできるし、たと
えば、両液を加圧噴射合流混合方式により急結混合すれ
ば部分ゲルを生じることがない。Moreover, in the above, the A liquid may be one in which water glass and an aluminum compound are essential, and a reactant is added thereto. Furthermore, water glass and an aluminum compound can be arbitrarily mixed when applying to the liquid preparation of the basic material, and, for example, if both liquids are rapidly solidified and mixed by a pressurized jet merging mixing method, no partial gel will be formed.
上述のとおり、本発明はそれ自体ゲル化し得る、水ガラ
スとアルミニウム化合物の混合液を基本素材とし、これ
に反応剤を加えて得られた注入液を地盤中に注入するこ
とを特徴とし、これによって従来の注入方式に存する欠
点を解決したものであって、基本素材を作液したのち、
長時間にわたって任意に反応剤を加えてもゲル化の変動
が少なく、浸透性にもすぐれて、作業性にすぐれ、所定
のゲル化時間をうることができ、しかも確実にゲル化す
るたぬ注入効果もすぐれ、極めて実用性のある発明であ
る。As mentioned above, the present invention is characterized in that the basic material is a mixture of water glass and an aluminum compound, which itself can be gelled, and the injection liquid obtained by adding a reactant to this is injected into the ground. This method solves the drawbacks of conventional injection methods, and after injecting the basic material,
Tanu injection has little variation in gelation even when a reactant is added arbitrarily over a long period of time, has excellent permeability, is easy to work with, can obtain a predetermined gelation time, and gels reliably. This invention has excellent effects and is extremely practical.
第１図はＡＳＢ液の急結配合におけるＡ液の経過時間と
Ａ、８合流液のゲル化時間の関係を表したグラフであり
、第２図はＡ、Ｂ液の緩結配合に右けるＡ液の経過時間
とＡ、８合流液のゲル化時間の関係を表したグラフであ
る。Figure 1 is a graph showing the relationship between the elapsed time of liquid A and the gelation time of combined liquids A and 8 in the rapid setting formulation of ASB liquid, and Figure 2 is a graph showing the relationship between the gelation time of liquid A and B in the slow setting formulation of liquid A and B. It is a graph showing the relationship between the elapsed time of liquid A and the gelation time of A and 8 combined liquids.
Claims (2)
アルカリ性配合液を基本素材とし、この基本素材に反応
剤を添加してゲル化時間を調整してなるアルカリ性注入
液を地盤中に注入することを特徴とする地盤注入工法。(1) The basic material is an alkaline liquid mixture containing water glass and aluminum compounds as active ingredients, and the alkaline injection liquid is injected into the ground by adding a reactant to this basic material and adjusting the gelation time. Characteristic ground injection method.
記基本素材はゲル化時間が１時間以上である工法。(2) The ground injection method according to claim 1, wherein the basic material has a gelling time of 1 hour or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2201286A JP2588053B2 (en) | 1990-07-31 | 1990-07-31 | Ground injection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2201286A JP2588053B2 (en) | 1990-07-31 | 1990-07-31 | Ground injection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0489912A true JPH0489912A (en) | 1992-03-24 |
| JP2588053B2 JP2588053B2 (en) | 1997-03-05 |
Family
ID=16438458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2201286A Expired - Fee Related JP2588053B2 (en) | 1990-07-31 | 1990-07-31 | Ground injection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2588053B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0492013A (en) * | 1990-08-08 | 1992-03-25 | Kyokado Eng Co Ltd | Ground grouting work |
| JP2005206719A (en) * | 2004-01-23 | 2005-08-04 | Mitsubishi Rayon Co Ltd | Water glass type chemical for stabilizing soil and ground stabilizing method using the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5069809A (en) * | 1973-11-13 | 1975-06-10 | ||
| JPS5194620A (en) * | 1975-02-17 | 1976-08-19 | DOSHITSUKAIR YOKOHO | |
| JPS5993787A (en) * | 1982-11-20 | 1984-05-30 | Kyokado Eng Co Ltd | Solidification of ground |
| JPH01190786A (en) * | 1988-01-27 | 1989-07-31 | Kyokado Eng Co Ltd | Material for solidification |
-
1990
- 1990-07-31 JP JP2201286A patent/JP2588053B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5069809A (en) * | 1973-11-13 | 1975-06-10 | ||
| JPS5194620A (en) * | 1975-02-17 | 1976-08-19 | DOSHITSUKAIR YOKOHO | |
| JPS5993787A (en) * | 1982-11-20 | 1984-05-30 | Kyokado Eng Co Ltd | Solidification of ground |
| JPH01190786A (en) * | 1988-01-27 | 1989-07-31 | Kyokado Eng Co Ltd | Material for solidification |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0492013A (en) * | 1990-08-08 | 1992-03-25 | Kyokado Eng Co Ltd | Ground grouting work |
| JP2005206719A (en) * | 2004-01-23 | 2005-08-04 | Mitsubishi Rayon Co Ltd | Water glass type chemical for stabilizing soil and ground stabilizing method using the same |
| JP4502314B2 (en) * | 2004-01-23 | 2010-07-14 | 三菱レイヨン株式会社 | Water glass-based soil stabilization chemical and ground stabilization method using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2588053B2 (en) | 1997-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0273445B1 (en) | Chemical grout for ground injection and method for accretion | |
| JPH0489912A (en) | Grouting construction method | |
| KR100402456B1 (en) | Ground hardening material | |
| JPS59122579A (en) | Ground-impregnating agent and ground stabilization | |
| JPS62290790A (en) | Grout for injection into ground | |
| JP2547120B2 (en) | Ground injection method | |
| JPH0554520B2 (en) | ||
| JP3095431B2 (en) | Hardener composition for preparing ground injection chemical, method of preparing ground injection, and method of injecting chemical into ground | |
| JP2001098271A (en) | Ground solidification material | |
| JP2588053C (en) | ||
| JPH0525272B2 (en) | ||
| JPS6312514B2 (en) | ||
| JPH0468356B2 (en) | ||
| JPS62199684A (en) | Soil stabilization works | |
| JP2554953B2 (en) | Ground injection method | |
| JPS629155B2 (en) | ||
| JPS59152984A (en) | Impregnation method for ground | |
| JPH0326784A (en) | Water grass-cement based grout material | |
| JPH0554519B2 (en) | ||
| JPS5844102B2 (en) | Soil stabilization method | |
| JP2000109835A (en) | Chemical liquid to be injected in soil | |
| JPH0480290A (en) | Grout | |
| JPH04356588A (en) | Stabilization of soil | |
| JPS6220238B2 (en) | ||
| JPS59172583A (en) | Grout to be poured into ground |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071205 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081205 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081205 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091205 Year of fee payment: 13 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091205 Year of fee payment: 13 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091205 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091205 Year of fee payment: 13 |
|
| LAPS | Cancellation because of no payment of annual fees |