JP2005264507A - Assembly for natural ground injection, and injection method - Google Patents

Assembly for natural ground injection, and injection method Download PDF

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JP2005264507A
JP2005264507A JP2004076376A JP2004076376A JP2005264507A JP 2005264507 A JP2005264507 A JP 2005264507A JP 2004076376 A JP2004076376 A JP 2004076376A JP 2004076376 A JP2004076376 A JP 2004076376A JP 2005264507 A JP2005264507 A JP 2005264507A
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bag body
injection
assembly
porous tube
natural ground
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Hideo Senke
千家秀雄
Kotaro Amaya
天谷浩太郎
Yukihiro Matsuda
松田幸宏
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Nisshin Engineering Co Ltd
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Nisshin Engineering Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an assembly for natural ground injection smoothly inserted into a perforated pipe and easily constituting a plurality of passages in the perforated pipe, and to provide an injection method. <P>SOLUTION: The assembly 1 for injection is composed of a long-sized flexible bag body, a restraining ring 12 fitted to the outer periphery of the bag body, and an injection pipe 13 provided along the outer periphery of the bag body. The bag body is closed at the tip and provided with a filling part of an expansion fluid for expanding the bag body, on the base end side of the bag body. The tip opening of the injection pipe 13 is installed facing the restraining ring 12. A hardener is injected into the natural ground G using the assembly for the natural ground injection. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、地山注入用組立体と注入方法に関するものである。
The present invention relates to an assembly for filling natural ground and an injection method.

崩壊しやすい地山にトンネルなどを構築する場合に、掘削予定の範囲外に削孔してその孔内にパイプを設置し、そのパイプを通して硬化剤を地山に圧入する工法が開発され、利用されている。
その場合に、地山を固化する硬化剤はパイプの先端の１箇所からではなく、中間の複数の位置から地山へ注入することが望ましい。
その方法として例えば特公平７−８１４８４号公報記載のような方法が開発されている。
この方法は、図５に示すように削孔内に挿入する多孔管ａの内部に、隔壁ｂと注入パイプｃの組み合わせ体を挿入、嵌合する方法である。
多孔管ａへの挿入前にすでに隔壁ｂが形成されているから、この隔壁ｂを挿入することによって、図６に示すように多孔管ａは完全に仕切られて複数の発泡室ｆを形成する。
発泡剤ｄを注入する注入パイプｃの吐出口を各発泡室ｆごとに開放してあるから、仕切られた発泡室ｆごとに発泡剤ｄが吐出する。
各発泡室ｆ内を充填した発泡剤ｄは多孔管ａの孔ｅを通して地山に浸入して、多孔管ａと周囲の地山に硬化領域を形成することになる。
特公平７−８１４８４号公報 When constructing a tunnel or the like in a natural ground that is prone to collapse, a construction method was developed in which a hole was drilled outside the planned drilling area, a pipe was installed in the hole, and a hardener was pressed into the ground through the pipe. Has been.
In that case, it is desirable to inject the curing agent for solidifying the natural ground into the natural ground from a plurality of intermediate positions rather than from one place at the tip of the pipe.
For example, a method as described in Japanese Patent Publication No. 7-81484 has been developed.
In this method, as shown in FIG. 5, a combination of a partition wall b and an injection pipe c is inserted and fitted into a porous tube a to be inserted into a drilling hole.
Since the partition wall b has already been formed before insertion into the porous tube a, by inserting this partition wall b, the porous tube a is completely partitioned to form a plurality of foaming chambers f as shown in FIG. .
Since the discharge port of the injection pipe c for injecting the foaming agent d is opened for each foaming chamber f, the foaming agent d is discharged for each partitioned foaming chamber f.
The foaming agent d filled in each foaming chamber f enters the natural ground through the hole e of the porous tube a, and forms a hardened region in the porous tube a and the surrounding natural ground.
Japanese Patent Publication No. 7-81484

前記した従来の地山注入用組立体と注入方法にあっては、次のような問題点がある。
＜１＞円盤体によって構成した隔壁ｂと注入パイプｃとの組み合わせ体を、多孔管ａに挿入して嵌合する構成である。
＜２＞そのために、円盤体である隔壁ｂは多孔管ａの内径よりわずかでも小さい外径のものでないと、例えば３０ｍもの長い多孔管ａの内部へ挿入することが困難である。
＜３＞一方、隔壁ｂは発泡室ｆごとに絶縁する目的で設置する壁板であるから、隣接する発泡室ｆが連通していては意味がない。
＜４＞このように、隔壁ｂと注入パイプｃの組み合わせ体は、長い多孔管ａへの挿入は容易でありながら、一方ではシール性を保たせる必要があり、実際の現場で対応するのは困難な場合がある。
The above-described conventional ground-fill injection assembly and injection method have the following problems.
<1> A configuration in which a combination of a partition wall b and an injection pipe c configured by a disc body is inserted into and fitted into a porous tube a.
<2> Therefore, if the partition wall b, which is a disk body, has an outer diameter that is slightly smaller than the inner diameter of the porous tube a, it is difficult to insert the partition wall b into the porous tube a that is as long as 30 m, for example.
<3> On the other hand, since the partition wall b is a wall plate installed for the purpose of insulating each foaming chamber f, it is meaningless if the adjacent foaming chambers f communicate with each other.
<4> As described above, the combination of the partition wall b and the injection pipe c is easy to insert into the long porous tube a, but on the other hand, it is necessary to maintain a sealing property. It can be difficult.

上記のような課題を解決するために、本発明の地山注入用組立体は、長尺の可撓性の袋体と、この袋体の外周に嵌合させた拘束環と、この袋体の外周に沿わせて設けた注入パイプとより注入用組立体を構成し、袋体は先端を閉塞し、袋体の基端側には袋体を膨張させるための膨張用流動体の充填部を設け、注入パイプの先端開放口は、前記の拘束環に臨ませて設置した、地山注入用組立体を特徴としたものである。
また本発明の注入方法は、 地山に長孔を削孔し、この長孔内に、周囲に注入孔を開口した多孔管を挿入し、多孔管の内部に、長尺の可撓性の袋体と、この袋体の外周に嵌合させた拘束環とこの袋体の外周に沿わせて設けた注入パイプとより構成した注入用組立体を挿入し、袋体の内部へ膨張用流動体を充填して、袋体の拘束環以外の部分が多孔管の内面に接触するまで膨張させ、その後に注入パイプの先端開放口から、拘束環付近へ硬化剤を吐出させ、その硬化剤を多孔管の孔を通して多孔管の外部の地山へ含浸させて行う、地山注入方法を特徴としたものである。
In order to solve the above-described problems, a ground-fill injection assembly according to the present invention includes a long flexible bag body, a restraint ring fitted to the outer periphery of the bag body, and the bag body. An infusion assembly is formed by an infusion pipe provided along the outer periphery of the bag, the bag body closes the tip, and a filling portion of the inflating fluid for inflating the bag body on the base end side of the bag body The inlet opening of the injection pipe is characterized by an assembly for injecting natural ground, which is installed facing the restraint ring.
Also, the injection method of the present invention is a method of cutting a long hole in a natural ground, inserting a porous tube having an injection hole around it into the long hole, and placing a long flexible tube inside the porous tube. An infusion assembly comprising a bag, a restraining ring fitted to the outer periphery of the bag and an injection pipe provided along the outer periphery of the bag is inserted, and an inflating flow into the bag The body is filled and inflated until the part other than the restraint ring of the bag body contacts the inner surface of the porous tube, and then the curing agent is discharged from the open end of the injection pipe to the vicinity of the restraint ring. It is characterized by a natural ground injection method in which a natural ground outside the porous tube is impregnated through the hole of the porous tube.

本発明の地山注入用組立体と注入方法は以上説明したようになるから次のような効果を期待することができる。
＜１＞多孔管の内部に隔壁を構成する部材が非膨張状態にあり、その外径は多孔管の内径に比較して十分に小さい。
そのために、多孔管内部への挿入はまったく抵抗を受けることがなく、スムーズに短時間で行うことができる。
この点、従来の地山注入用組立体では、すでに隔壁が形成されており、隔壁の外径は、多孔管の内径に近いものを使用していたために、隔壁の周囲に潤滑材を塗布するなどしても、注入用組立体を多孔管の内部にスムーズに挿入することが困難であった。
＜２＞本発明の地山注入用組立体は、可撓性袋体と拘束環の組み合わせという簡単な構成であるから、安価に供給することができる。
＜３＞そのような簡単な構成であるから、多孔管の内部に隔壁を形成する工程が、可撓性袋体の一端から流動体を供給するだけで行うことができるから、作業が迅速である。
Since the ground injection assembly and the injection method of the present invention are as described above, the following effects can be expected.
<1> The member constituting the partition is in an unexpanded state inside the porous tube, and the outer diameter thereof is sufficiently smaller than the inner diameter of the porous tube.
Therefore, the insertion into the perforated pipe is not subjected to any resistance and can be performed smoothly and in a short time.
In this respect, in the conventional assembly for injecting natural ground, the partition wall is already formed, and the outer diameter of the partition wall is close to the inner diameter of the porous tube. Therefore, a lubricant is applied around the partition wall. However, it is difficult to smoothly insert the injection assembly into the perforated tube.
<2> Since the assembly for ground injection of the present invention has a simple configuration of a combination of a flexible bag and a restraint ring, it can be supplied at low cost.
<3> Since it is such a simple configuration, the process of forming the partition inside the porous tube can be performed simply by supplying the fluid from one end of the flexible bag, so the operation is quick. is there.

以下図面を参照しながら本発明の地山注入用組立体と注入方法の実施例について説明する。   Embodiments of a ground injection assembly and injection method according to the present invention will be described below with reference to the drawings.

＜１＞注入用組立体。
前記したように、軟弱な地山へ硬化剤を充填するために、削孔した長孔内にパイプを設置し、そのパイプを通して硬化剤を地山に圧入する工法が開発されている。その場合にパイプの内部に残る注入材の量を少なくし、できるだけ多量に地山へ注入できることが望ましい。
そこで本発明の注入用組立体１は、可撓性袋体１１と、拘束環１２と、注入パイプ１３とより構成する。 <1> An injection assembly.
As described above, in order to fill a hard ground with a hardener, a method has been developed in which a pipe is installed in a long hole that has been drilled and the hardener is pressed into the ground through the pipe. In that case, it is desirable to reduce the amount of the injection material remaining inside the pipe and to inject as much as possible into the ground.
Therefore, the injection assembly 1 according to the present invention includes a flexible bag 11, a restraint ring 12, and an injection pipe 13.

＜２＞可撓性袋体１１。
可撓性袋体１１は内部へ流動体を充填することによって膨張することが可能な素材で製造し、その長さは、削孔した長孔３に近い長さに構成した長尺の袋体である。
この可撓性袋体１１は先端を閉塞し、基端側には袋体を膨張させるための袋膨張材充填部１１ａを設ける。
この可撓性袋体１１の非膨張時の直径は、削孔した長孔３に挿入する多孔管２の内部の直径よりも小さく構成する。
長い多孔管２の内部にスムーズに挿入するために、可撓性袋体１１の内部には芯材としてパイプなどを設置しておくことができる。 <2> Flexible bag 11.
The flexible bag 11 is manufactured from a material that can be expanded by filling a fluid therein, and the length of the flexible bag 11 is a length close to the long hole 3 that has been drilled. It is.
The flexible bag 11 has a distal end closed, and a bag inflating material filling portion 11a for inflating the bag is provided on the proximal end side.
The diameter of the flexible bag 11 when not inflated is configured to be smaller than the diameter inside the porous tube 2 inserted into the drilled long hole 3.
In order to smoothly insert into the long porous tube 2, a pipe or the like can be installed as a core material inside the flexible bag 11.

＜３＞拘束環１２。
可撓性袋体１１が全体に一律に膨張することを阻止するために、可撓性袋体１１の途中には拘束環１２を嵌合する。
この拘束環１２は、可撓性袋体１１の膨張に比較して、実質的に膨張しない、非可撓性の材料で構成する。
例えば可撓性袋体１１の非膨張時の外径に近い内径を備えた塩ビパイプを短く切断した筒体を使用することができる。
この拘束環１２を、長尺の袋体である可撓性袋体１１の途中に１箇所、あるいは複数箇所に外装する。
ただし、拘束環１２の外装位置は、どこでもよいものではなく、多孔管２に挿入した場合に、多孔管２に開口した吐出孔２１の位置にほぼ一致させた位置に設置する。 <3> Restraint ring 12.
In order to prevent the flexible bag body 11 from uniformly expanding as a whole, a restraint ring 12 is fitted in the middle of the flexible bag body 11.
The restraint ring 12 is made of a non-flexible material that does not substantially expand as compared with the expansion of the flexible bag body 11.
For example, a cylindrical body obtained by cutting a polyvinyl chloride pipe having an inner diameter close to the outer diameter of the flexible bag body 11 when not inflated can be used.
The restraint ring 12 is externally mounted at one place or a plurality of places in the middle of the flexible bag body 11 which is a long bag body.
However, the exterior position of the restraint ring 12 is not limited to anywhere, and when it is inserted into the perforated tube 2, it is installed at a position that substantially coincides with the position of the discharge hole 21 that opens in the perforated tube 2.

＜４＞注入パイプ１３。
地山Ｇへの硬化剤を供給するための注入パイプ１３、を可撓性袋体１１の外面に沿わせて配置する。
そしてこの注入パイプ１３の基端側は、可撓性袋体１１の基端側に開放し、一方、注入パイプ１３の先端は、前記の拘束環１２に臨ませて開放する。
地山Ｇへの硬化剤の注入は、拘束環１２の位置ごとに行うから、注入パイプ１３の本数は、拘束環１２の数に一致させ、各拘束環１２の位置に、１本づつの注入パイプ１３の開口部を臨ませる。
したがって、図の実施例のように拘束環１２を３箇所に設置したならば、各拘束環１２ごとに、長さの異なる３本の注入パイプ１３を配置する。 <4> Injection pipe 13.
An injection pipe 13 for supplying a curing agent to the natural ground G is disposed along the outer surface of the flexible bag 11.
The proximal end side of the injection pipe 13 is opened to the proximal end side of the flexible bag body 11, while the distal end of the injection pipe 13 is opened facing the restraint ring 12.
Since the hardening agent is injected into the natural ground G at every position of the restraint ring 12, the number of the injection pipes 13 is matched with the number of the restraint rings 12, and one injection is made at each restraint ring 12 position. The opening of the pipe 13 is exposed.
Therefore, if the restraint rings 12 are installed at three places as in the illustrated embodiment, three injection pipes 13 having different lengths are arranged for each restraint ring 12.

＜５＞地山Ｇへの多孔管２の設置。
次に施工の順序を説明する。
まず、地山Ｇを削孔しながら、あるいは削孔が終了後に、その長孔３内に多孔管２を挿入して設置する。（図２） <5> Installation of the porous tube 2 in the natural ground G.
Next, the construction sequence will be described.
First, the porous tube 2 is inserted and installed in the long hole 3 while drilling the natural ground G or after the drilling is completed. (Figure 2)

＜６＞注入用組立体の挿入。
地山Ｇの長孔３内に設置した多孔管２の内部に、長尺の可撓性袋体１１と、この袋体の外周に嵌合させた拘束環１２と、この袋体の外面に沿わせて設けた注入パイプ１３とより構成した注入用組立体を挿入する。（図３）
その場合に、事前に多孔管２の吐出孔２１の位置がわかっているから、可撓性袋体１１には拘束環１２を、吐出孔２１の位置に一致させて配置しておく。
さらに、注入パイプ１３の先端開放口は拘束環１２に臨ませて設置してあるから、吐出孔２１近くには、拘束環１２と、注入パイプ１３の先端開放口が位置することになる。
注入用組立体１を多孔管２の内部へ挿入する場合に、前記したように従来の注入用組立体（図５）では、すでに隔壁ｂが形成されており、隔壁ｂの外径は、多孔管ａの内径に近いものを使用していた。
したがって隔壁ｂの周囲に潤滑材を塗布するなどしても、注入用組立体を例えば３０ｍもの長尺の多孔管ａの内部にスムーズに挿入することが困難であった。
しかるに本発明の注入用組立体１は、可撓性袋体１１は膨張状態にはなく、その外径は多孔管２の内径に比較して十分に小さい。
そのために、多孔管２内部への挿入はまったく抵抗を受けることがなく、スムーズに短時間で行うことができる。 <6> Insert the assembly for injection.
Inside the perforated tube 2 installed in the long hole 3 of the natural ground G, a long flexible bag 11, a restraint ring 12 fitted to the outer periphery of the bag, and an outer surface of the bag An injection assembly composed of an injection pipe 13 provided along the side is inserted. (Figure 3)
In this case, since the position of the discharge hole 21 of the perforated tube 2 is known in advance, the restraint ring 12 is arranged in the flexible bag 11 so as to coincide with the position of the discharge hole 21.
Furthermore, since the opening opening of the injection pipe 13 faces the restriction ring 12, the restriction ring 12 and the opening opening of the injection pipe 13 are located near the discharge hole 21.
When the injection assembly 1 is inserted into the perforated tube 2, the partition wall b is already formed in the conventional injection assembly (FIG. 5) as described above, and the outer diameter of the partition wall b is porous. The one close to the inner diameter of the tube a was used.
Therefore, even if a lubricant is applied around the partition wall b, it is difficult to smoothly insert the injection assembly into the long porous tube a having a length of, for example, 30 m.
However, in the injection assembly 1 of the present invention, the flexible bag 11 is not in an expanded state, and the outer diameter thereof is sufficiently smaller than the inner diameter of the porous tube 2.
Therefore, the insertion into the perforated pipe 2 is not subjected to any resistance and can be performed smoothly and in a short time.

＜７＞可撓性袋体１１の膨張。
多孔管２の内部に挿入した可撓性袋体１１の内へ、長孔３の孔外へ露出している袋膨張剤充填部１１ａから膨張用流動体を充填する。
すると可撓性袋体１１は、拘束環１２以外の部分が徐々に膨張し、やがて多孔管２の内面に接触するまで膨張する。この膨張部分が、従来の工法における「隔壁」に相当するが、本発明の工法では、薄い「壁」を形成するというよりも、多孔管２の内部空域を膨張した可撓性袋体１１で占領して、占領した以外の部分のわずかな空間を、硬化剤の吐出通路として残しておくという構成である。
このように、可撓性袋体１１の膨張の結果、多孔管２の吐出孔２１付近だけに、円筒状の拘束環１２の直径や長さに応じた非膨張部分が、硬化剤の吐出経路として開放されて残り、多孔管２の他の空域のすべては膨張した可撓性袋体１１によって占領される。
この場合に、可撓性袋体１１を膨張させる作業は、単に可撓性袋体１１の一端から流動体を充填するだけの簡単な作業によって、複数の隔壁に相当する膨張部分を形成することができる。 <7> Expansion of the flexible bag 11.
The inflating fluid is filled into the flexible bag 11 inserted inside the perforated tube 2 from the bag inflating agent filling portion 11a exposed to the outside of the long hole 3.
Then, the flexible bag body 11 is inflated until the portion other than the restraint ring 12 is gradually expanded and eventually comes into contact with the inner surface of the porous tube 2. This inflated portion corresponds to the “partition wall” in the conventional method, but in the method of the present invention, rather than forming a thin “wall”, the flexible bag body 11 inflated the internal air space of the porous tube 2. Occupied, and a small space other than occupied is left as a discharge path for the curing agent.
As described above, as a result of the expansion of the flexible bag body 11, the non-inflated portion corresponding to the diameter and length of the cylindrical restraint ring 12 is provided only in the vicinity of the discharge hole 21 of the porous tube 2. And all the other airspaces of the perforated pipe 2 are occupied by the expanded flexible bag 11.
In this case, the operation of inflating the flexible bag body 11 is to form inflated portions corresponding to a plurality of partition walls by a simple operation of simply filling the fluid from one end of the flexible bag body 11. Can do.

＜８＞硬化剤の吐出。
その後に注入パイプ１３の基端側から硬化剤を加圧して供給する。
この硬化剤は発泡性のものに限らず、地山Ｇを補強することができる公知のあらゆる材料を使用できる。
硬化剤は、加圧状態で注入パイプ１１の先端開放口から拘束環１２付近へ吐出する。
拘束環１２付近には狭い範囲で可撓性袋体１１が膨張していない空間が硬化剤の通路として残っている。
この通路が硬化剤で充填されると、発泡の圧力、あるいは加圧ポンプの圧力によって硬化剤はそのまま多孔管２に開口した吐出孔２１を通過して多孔管２の外部の地山Ｇの空隙へ浸入する。
こうして多孔管２の外周の地山Ｇの補強、改良が完成する。
<8> Discharge of curing agent.
Thereafter, the curing agent is pressurized and supplied from the proximal end side of the injection pipe 13.
The curing agent is not limited to a foaming material, and any known material that can reinforce the natural ground G can be used.
The curing agent is discharged in the vicinity of the restraint ring 12 from the open end of the injection pipe 11 in a pressurized state.
In the vicinity of the restraint ring 12, a space in which the flexible bag 11 is not expanded in a narrow range remains as a passage for the curing agent.
When this passage is filled with the curing agent, the curing agent passes through the discharge hole 21 opened in the porous tube 2 as it is by the pressure of foaming or the pressure of the pressure pump, and the void of the natural ground G outside the porous tube 2. Invade into.
In this way, the reinforcement and improvement of the natural ground G on the outer periphery of the porous tube 2 are completed.

本発明の地山注入用組立体の膨張前の状態の説明図。Explanatory drawing of the state before expansion of the assembly for ground injection of this invention. 地山の長孔に多孔管を配置した状態の説明図。Explanatory drawing of the state which has arrange | positioned the porous tube in the long hole of the natural ground. 多孔管の内部に、膨張前の本発明の地山注入用組立体を挿入した状態の説明図。Explanatory drawing of the state which inserted the assembly for ground injection of this invention before expansion | swelling in the inside of a porous tube. 多孔管の内部に挿入した地山注入用組立体の可撓性袋体を膨張させた状態の説明図。Explanatory drawing of the state which expanded the flexible bag body of the assembly for natural ground injection | pouring inserted in the inside of a porous tube. 従来の地山注入用組立体の実施例の説明図。Explanatory drawing of the Example of the conventional assembly for ground injection. 従来の地山注入工法の説明図。Explanatory drawing of the conventional natural ground injection construction method.

符号の説明Explanation of symbols

１：注入用組立体
１１：可撓性袋体
１２：拘束環
１３：注入パイプ
２：多孔管
３：長孔
1: Injection assembly 11: Flexible bag 12: Restraint ring 13: Injection pipe 2: Porous pipe 3: Long hole

Claims (2)

長尺の可撓性の袋体と、
この袋体の外周に嵌合させた非可撓性の拘束環と
この袋体の外面に沿わせて設けた注入パイプとによって注入用組立体を構成し、
袋体は先端を閉塞し、袋体の基端側には袋体を膨張させるための膨張用流動体の充填部を設け、
注入パイプの先端開放口は、前記の拘束環に臨ませて設置した、
地山注入用組立体。
A long flexible bag;
An infusion assembly is constituted by an inflexible restraint ring fitted to the outer periphery of the bag body and an injection pipe provided along the outer surface of the bag body,
The bag body is closed at the tip, and a filling portion for inflating fluid for inflating the bag body is provided on the base end side of the bag body,
The inlet opening of the injection pipe was installed facing the restraint ring,
An assembly for injecting natural ground.
地山に長孔を削孔し、
この長孔内に、周囲に注入孔を開口した多孔管を挿入し、
多孔管の内部に、
長尺の可撓性の袋体と、
この袋体の外周に嵌合させた拘束環と
この袋体の外面に沿わせて設けた注入パイプとより構成した注入用組立体を挿入し、
袋体の一端からその内部へ膨張用流動体を充填して、袋体の拘束環以外の部分が多孔管の内面に接触するまで膨張させ、
その後に注入パイプの先端開放口から、拘束環付近へ硬化剤を吐出させ、
その硬化剤を多孔管の吐出孔を通して多孔管の外部の地山へ吐出させて行う、
地山注入方法。 Drill a long hole in the ground,
In this long hole, insert a porous tube with an injection hole around,
Inside the perforated tube,
A long flexible bag;
Insert an infusion assembly composed of a restraining ring fitted to the outer periphery of the bag body and an injection pipe provided along the outer surface of the bag body,
Fill the inside of the bag body with the inflating fluid, and inflate until the portion other than the restraining ring of the bag body contacts the inner surface of the porous tube,
After that, the curing agent is discharged from the opening opening of the injection pipe to the vicinity of the restraint ring,
The hardener is discharged through the discharge hole of the porous tube to the ground outside the porous tube.
A natural injection method.
JP2004076376A 2004-03-17 2004-03-17 Assembly for natural ground injection, and injection method Ceased JP2005264507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004076376A JP2005264507A (en) 2004-03-17 2004-03-17 Assembly for natural ground injection, and injection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004076376A JP2005264507A (en) 2004-03-17 2004-03-17 Assembly for natural ground injection, and injection method

Publications (1)

Publication Number Publication Date
JP2005264507A true JP2005264507A (en) 2005-09-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009038203A1 (en) * 2007-09-21 2009-03-26 Nec Corporation Temperature control method and system
CN104696664A (en) * 2015-02-09 2015-06-10 郑州安源工程技术有限公司 High-polymer composite grouting method for leakage and sand inrush blocking of underground pipeline
CN112031675A (en) * 2020-08-24 2020-12-04 北京大地高科地质勘查有限公司 Sectional type grouting equipment for ground drilling

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009038203A1 (en) * 2007-09-21 2009-03-26 Nec Corporation Temperature control method and system
JPWO2009038203A1 (en) * 2007-09-21 2011-01-13 日本電気株式会社 Temperature control method and system
US8202722B2 (en) 2007-09-21 2012-06-19 Nec Corporation Temperature control method and system
JP5556178B2 (en) * 2007-09-21 2014-07-23 日本電気株式会社 Temperature control method and system
CN104696664A (en) * 2015-02-09 2015-06-10 郑州安源工程技术有限公司 High-polymer composite grouting method for leakage and sand inrush blocking of underground pipeline
CN112031675A (en) * 2020-08-24 2020-12-04 北京大地高科地质勘查有限公司 Sectional type grouting equipment for ground drilling
CN112031675B (en) * 2020-08-24 2022-08-19 北京大地高科地质勘查有限公司 Sectional type grouting equipment for ground drilling

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