JPH04189916A - Internal pressure adjusted sludge disposal method in lateral injection - Google Patents
Internal pressure adjusted sludge disposal method in lateral injectionInfo
- Publication number
- JPH04189916A JPH04189916A JP31615490A JP31615490A JPH04189916A JP H04189916 A JPH04189916 A JP H04189916A JP 31615490 A JP31615490 A JP 31615490A JP 31615490 A JP31615490 A JP 31615490A JP H04189916 A JPH04189916 A JP H04189916A
- Authority
- JP
- Japan
- Prior art keywords
- injection
- internal pressure
- slime
- pressure adjustment
- injection rod
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 105
- 239000007924 injection Substances 0.000 title claims abstract description 105
- 239000010802 sludge Substances 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims abstract description 32
- 230000001105 regulatory effect Effects 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 239000002689 soil Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 4
- 239000013505 freshwater Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は軟弱地盤の安定、トンネル覆工層の造成、地山
の支保など側方への硬化層造成を目的として施工される
水平方向への地盤硬化材注入の際に、適切な注入内圧の
調整や排泥調整を行って均質な注入層を得るための内圧
調整排泥工法に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to horizontal direction construction for the purpose of stabilizing soft ground, creating a tunnel lining layer, and creating a hardened layer in the lateral direction for supporting the ground. This invention relates to an internal pressure adjustment sludge drainage method for obtaining a homogeneous injection layer by appropriately adjusting the injection internal pressure and sludge drainage during the injection of soil hardening material.
従来、水平方向への穿孔による高圧噴射注入工法に於い
ては、上下関係が注入ロッドの挿入方向と一致しないた
め、気体の上昇力や液体固体の重力等、自然の上昇力や
下降力を利用出来ないという不利な条件にある。従って
、垂直方向への穿孔に比して条件が悪く、スライムの排
出は主として挿入ロッド周辺の地盤との空隙を利用する
方法かとられてきた。そのため、硬化材噴流の到達距離
を延ばす点て極めて有利とされているエアー包含噴射注
入は、側方注入では用いることか出来なかった。Conventionally, in the high-pressure injection injection method using horizontal drilling, the vertical relationship does not match the insertion direction of the injection rod, so natural upward and downward forces such as the upward force of gas and the gravity of liquid solids are used. I'm in a disadvantageous situation where I can't do it. Therefore, the conditions are worse than drilling in the vertical direction, and the method of discharging slime has mainly been to utilize the gap with the ground around the insertion rod. For this reason, air-containing injection injection, which is considered to be extremely advantageous in extending the reach of the curing material jet, could not be used in side injection.
挿入リフト周辺の地盤との空隙を利用する場合、深度か
浅く且つ毎分光たりの噴射量か少ない場合は比較的問題
はないか、挿入深度か深くなリ、高圧ポンプの性能が向
上して高圧大量の噴射量となった現今では対応し切れな
くなっている。そのため、挿入孔内のスライムの排出か
抑制されると後続の噴射圧によって圧迫され、ノズル付
近の反発力を高める多量の余剰スライムが発生する。When using the gap with the ground around the insertion lift, if the depth is shallow and the amount of injection per minute is small, there is relatively no problem. Nowadays, the amount of injection is so large that it is no longer possible to handle it. Therefore, when the discharge of slime in the insertion hole is suppressed, a large amount of surplus slime is generated which is compressed by the subsequent injection pressure and increases the repulsive force near the nozzle.
この余剰スライムに対する対応策としては注入ロッド挿
入口からの吸引ポンプによる収集か提案されている他は
、注入ロッド挿入口にパッカーやケーシングを設けて地
中に押し戻すか、地上に浴出させて垂れ流すかの対応し
かなされていない。As a countermeasure for this surplus slime, it has been proposed to collect it using a suction pump from the injection rod insertion port, but other methods include installing a packer or casing at the injection rod insertion port and pushing it back into the ground, or letting it drip out onto the ground. The only thing that has been done is to just let it go.
また、圧力注入の場合には硬化材の注入量と地盤の粒子
密度の゛バランスに特別の配慮はなされていなかった。Furthermore, in the case of pressure injection, no special consideration was given to the balance between the amount of hardening material injected and the particle density of the ground.
従来の側方注入の場合、噴射ノズル周辺の余剰スライム
圧力は、いわば成り行き任せの状態であるため、噴射量
か多い場合や深度か深く注入距離が長くなると硬化材噴
射量とスライム排出量のバランスか崩れる事態か発生す
る。In the case of conventional side injection, the excess slime pressure around the injection nozzle is left to its own devices, so when the injection amount is large or the injection depth is deep and the injection distance is long, the balance between the hardening material injection amount and the slime discharge amount becomes difficult. Or a situation where it collapses occurs.
排出かスムーズに行われない場合当然ながら噴射ノズル
周辺の圧力が上昇し、このため噴射性能が減殺される。If the discharge is not carried out smoothly, the pressure around the injection nozzle naturally increases, which reduces the injection performance.
また、スライム排出量か大きすぎると硬化層内に空洞か
発生する。Also, if the amount of slime discharged is too large, cavities will occur in the hardened layer.
エアー包含噴射か行われる場合には、噴射ノズル周辺の
圧力が上昇し一定圧力を超過すると、エアーの噴出をと
めることとなり、噴射効果は極端に減殺される。更にス
ライムの圧力が上昇する場合、地盤注入効果か減少する
ばかりか、地盤崩落の原因となり、更にはエアー噴出口
からスライムか逆流する等大きい障害か発生するという
問題かある。When air-containing injection is performed, if the pressure around the injection nozzle increases and exceeds a certain pressure, the air will stop being ejected, and the injection effect will be drastically reduced. Furthermore, if the pressure of the slime increases, the effect of injecting the ground into the ground will not only decrease, but it will also cause the ground to collapse, and furthermore, there will be problems such as serious problems such as slime flowing back from the air outlet.
本発明は厄介物として押し戻したり、垂れ流したりした
余剰スライムを、スライム自体に蓄積される内圧エネル
ギーと内圧調整弁を利用してコントロールし、バランス
のとれた注入と排出を行えるようにしたものである。The present invention controls surplus slime that is pushed back or dripped out as a nuisance by using the internal pressure energy accumulated in the slime itself and an internal pressure regulating valve, making it possible to perform balanced injection and discharge. .
即ち、挿入された注入ロッドより上部の位置て注入ロッ
ドから噴射される高圧硬化材噴流の到達射程距離内に、
注入の噴射内圧によってスライムを吸入する内圧調整管
を注入ロッドと平行して挿入し、噴射ノズル周辺の圧力
か上昇し内圧エネルギーが高まると内圧調整管側壁に設
けた吸入スリットから泥水スライムが吸入され、内圧調
整管を通じて排泥が行われて内圧が低下する。That is, within the range of the high-pressure hardening material jet sprayed from the injection rod at a position above the inserted injection rod,
An internal pressure regulating tube is inserted in parallel with the injection rod to suck in slime using the injection internal pressure. When the pressure around the injection nozzle rises and the internal pressure energy increases, muddy slime is sucked in through the suction slit provided on the side wall of the internal pressure regulating tube. , mud is removed through the internal pressure regulating pipe, and the internal pressure decreases.
内圧調整管は後端に内圧調整弁を備えているので、管内
の圧力を計測し、一定以上に内圧か上昇した場合には調
整弁を開いてサクンヨンする等排泥を盛んにして内圧を
下げ、内圧が低下した場合には調整弁を閉じてスライム
の排出を止めるなどの圧力調整をしながら、硬化材の注
入が行われるもので注入効果を高め、スライムの処理も
一挙に行なって作業性の向上、注入効果の両面から問題
点の解決をはかろうとするものである。更に内圧調整管
に設けられた計測機構によって噴射ノズル周辺の圧力を
含めた内圧を測定把握することができるので、地盤硬化
材の噴射注入量の調整を含む総合的な注入調整も可能に
したものである。The internal pressure regulating pipe is equipped with an internal pressure regulating valve at the rear end, so the pressure inside the pipe is measured, and if the internal pressure rises above a certain level, the regulating valve is opened to increase mud removal and lower the internal pressure. When the internal pressure decreases, the pressure is adjusted by closing the regulating valve to stop slime discharge while injecting the hardening material, increasing the injection effect and processing the slime all at once, improving work efficiency. The aim is to solve the problems from both the improvement of injection efficiency and the injection effect. Furthermore, the internal pressure, including the pressure around the injection nozzle, can be measured and understood using the measurement mechanism installed in the internal pressure adjustment pipe, making it possible to make comprehensive injection adjustments including adjusting the injection amount of soil hardening material. It is.
地盤硬化材の噴射注入によって発生するスライムは、後
続の注入による噴射圧に圧迫され、更に注入ロッドのノ
ズルの後部に設けられたパッカーによって逃げ場を失い
、次第にその内圧を高めて内圧エネルギーを蓄積する。The slime generated by the injection of soil hardening material is compressed by the injection pressure of the subsequent injection, and has no place to escape due to the packer installed at the rear of the nozzle of the injection rod, gradually increasing its internal pressure and accumulating internal pressure energy. .
この内圧エネルギーは膨張力となって働き、噴射噴流の
到達射程距離内に注入ロッドと平行して挿入されている
内圧調整管に対しては外圧となるから内圧調整管に開口
部としてスリットか設けられれば、当然スライムはスリ
ット開口部に流入して内圧を開放する。このメカニズム
によって余剰スライムが注入ロッドの硬化材噴射ノズル
から所定の間隔を置いて挿入された内圧調整管のスリッ
トに吸入されると、スライムの上昇力に負荷された硬化
材噴射圧や噴射エアーの負担か減少し、空隙率も増すの
で、噴射された硬化材噴流の到達距離か伸びる。一方、
余剰スライムに蓄積された内圧エネルギーか、内圧調整
管のスリットへのスライム吸入によって開放されると、
蓄積エネルギーの減少に比例してスリ、トへのスライム
吸入量は減少し、過度な吸引による硬化材注入層の痩身
現象は自動的に回避されるまた、内圧調整管の圧力計測
機構によって管内外の圧力を把握できるので、調整弁に
よって意図的な注入調整も可能であり、極めて効果的な
注入を行うことができる。This internal pressure energy acts as an expansion force, and becomes external pressure for the internal pressure regulating tube inserted parallel to the injection rod within the range of the injection jet, so a slit is provided as an opening in the internal pressure regulating tube. If the slime is removed, the slime naturally flows into the slit opening and releases the internal pressure. By this mechanism, when surplus slime is sucked into the slit of the internal pressure adjustment tube inserted at a predetermined interval from the hardening material injection nozzle of the injection rod, the hardening material injection pressure loaded with the rising force of the slime and the injection air increase. Since the load decreases and the porosity increases, the reach of the injected hardening material jet increases. on the other hand,
When the internal pressure energy accumulated in the excess slime is released by sucking the slime into the slit of the internal pressure adjustment tube,
The amount of slime inhaled into the slit and torsion is reduced in proportion to the decrease in accumulated energy, and the slimming phenomenon of the hardening material injection layer due to excessive suction is automatically avoided.In addition, the pressure measurement mechanism of the internal pressure adjustment tube allows the slime to be sucked into the inside and outside of the tube. Since the pressure can be ascertained, intentional injection adjustment is possible using a regulating valve, and extremely effective injection can be performed.
（実 施 例）
以下図面に従って本発明の１つの実施例としてエアー包
含噴射注入の場合の例を説明する。(Embodiment) An example of air-containing injection injection will be described below as an embodiment of the present invention with reference to the drawings.
１は注入ロントで操作機構２によって支持され、前進、
後退、回転若しくは３６０度往復回動等の作動を与えら
れる。注入ロント１の先端部側壁には噴射ノズル３が設
けられ、内部には噴射ノズル３等の各開口部に開口する
多重経路を有している。噴射ノズル３の後部には注入ロ
ッド挿入孔からのスライム逆流を防止するパッカー３１
か設けられている。1 is an injection front supported by an operating mechanism 2 and moved forward;
It can perform operations such as retreat, rotation, and 360-degree reciprocating rotation. An injection nozzle 3 is provided on the side wall of the distal end of the injection nozzle 1, and the injection nozzle 1 has multiple paths opening into the respective openings of the injection nozzle 3 and the like. A packer 31 is provided at the rear of the injection nozzle 3 to prevent slime from flowing back from the injection rod insertion hole.
Or is provided.
噴射ノズル３は核ノズルと囲周ノズルとか二重に重合す
る重合噴射ノズルとなっており、スイベル４を介して供
給される硬化材、エアー、必要に応じて清水等を、各別
の経路から開口する核ノズル或いは囲周ノズルを通じて
地中に噴射する。噴射ノズル３は重合噴射ノズルとなっ
ていない場合もあることは勿論である。The injection nozzle 3 is a polymerization injection nozzle that double-polymerizes the core nozzle and the surrounding nozzle, and the curing material, air, and if necessary fresh water, etc., supplied via the swivel 4 are supplied from different routes. It is injected into the ground through an open core nozzle or a circumferential nozzle. Of course, the injection nozzle 3 may not be a polymer injection nozzle.
５は内圧調整管で、側壁に適宜の吸入スリット６が開口
する。この吸入スリット６は内圧調整管５か注入ロッド
１と連動して後退するように構成した場合には先端部の
みに開口させれば良いか、内圧調整管を移動させない場
合には第１図に図示するように側壁全体に開口させる。Reference numeral 5 denotes an internal pressure regulating tube, and a suitable suction slit 6 is opened in the side wall. If this suction slit 6 is configured to move backward in conjunction with the internal pressure adjustment tube 5 or the injection rod 1, it is sufficient to open only at the tip, or if the internal pressure adjustment tube is not moved, as shown in Fig. 1. As shown in the figure, the entire side wall is opened.
また、素材として注入ロッド１と連動して後退するよう
に構成する場合等には金属を用いるが、簡易にケー／ン
グ挿入して埋め殺す場合等にはビニールなとの合成樹脂
を用い、使用後は気孔として利用しても良い。In addition, metal is used as the material when the structure is configured to move backward in conjunction with the injection rod 1, but when the case is simply inserted into a case and buried, a synthetic resin such as vinyl is used. The rest can be used as pores.
内圧調整管５の後端は内圧調整弁７となっており、排泥
ホース７１と圧カゲーン７２か備えられ、必要に応じて
先端に圧力センサーを設置し、或いは操作杆に連携した
圧力センサーを管内部に挿入して置く。The rear end of the internal pressure regulating pipe 5 is an internal pressure regulating valve 7, which is equipped with a mud removal hose 71 and a pressure gauge 72, and if necessary, a pressure sensor is installed at the tip or a pressure sensor linked to the operating rod is installed. Insert it inside the tube.
以上のような注入装置／ステトを用い、注入ロッド１は
回転等の適宜手段によって側方対象地盤Ｇの水平方向に
推進挿入される。Using the injection device/stent as described above, the injection rod 1 is propelled and inserted in the horizontal direction of the lateral target ground G by appropriate means such as rotation.
同時に、挿入された注入ロッド１より上部の位置で注入
ロッドから噴射される高圧硬化材噴流の到達射程距離内
に、ケーシングなと適宜手段によって内圧調整管５を注
入ロッドＩと平行して挿入する。辺の内圧調整管５は必
要に応じ、１本または数本挿入する。At the same time, the internal pressure adjusting tube 5 is inserted in parallel with the injection rod I using an appropriate means such as a casing, within the range of the high-pressure hardening material jet sprayed from the injection rod at a position above the inserted injection rod 1. . One or more inner pressure regulating tubes 5 on the sides are inserted as necessary.
所定深度において、重合噴射ノズル３の核ノズルから地
盤硬化材を４００ｋｇｆ／−程度の高圧力、流量１００
ｊｌ’／ｍｉｎ前後で噴射し、囲周ノズルからエアー（
場合によっては囲周ノズルの外（Ｊｌｌｌ ヲ更に囲周
する囲周ノズルを設け、その囲周ノズルから清水を噴射
し、場合によってはエアーも清水も噴射せずに）を噴射
しながら注入ｏ ７ ）１を回転後退させると噴射によ
る破砕力を失って対象地盤の硬化材浸透域Ｅに充満して
飽和状態となった泥水スライムか、後続噴射によってス
ライム自体に蓄積された内圧エネルギーによって周辺土
壌の硬化材浸透域Ｅ内における唯一の開口部となってい
る吸入スリット６に集中（。At a predetermined depth, the soil hardening material is injected from the core nozzle of the polymerization injection nozzle 3 at a high pressure of about 400 kgf/- and a flow rate of 100 kgf/-.
It injects around jl'/min, and air (
In some cases, the injection may be performed while injecting the outside of the surrounding nozzle (a surrounding nozzle is further provided surrounding the surrounding nozzle, and fresh water is injected from the surrounding nozzle, and in some cases, neither air nor fresh water is injected). ) 1 is rotated backward, the crushing force of the injection is lost and the hardened material seepage area E of the target ground is filled with muddy water slime which has become saturated, or the surrounding soil is destroyed by the internal pressure energy accumulated in the slime itself by the subsequent injection. Concentrate on the suction slit 6, which is the only opening in the hardening material penetration area E.
て内圧調整管５内に滞留エアーと共に吸入され、排泥ホ
ース７１を通じてスライムを処理するフィルタープレス
等に送入される。The slime is sucked together with the accumulated air into the internal pressure regulating pipe 5, and sent through the mud removal hose 71 to a filter press or the like that processes the slime.
この間、硬化材を混入したスライムか過度に排出された
り、滞留されたりしないように管内の圧力か圧力センサ
ー等によって把握されて圧力ゲーノ７２に表示され、内
圧調整弁７によって調整か行われる。During this time, the pressure inside the pipe is detected by a pressure sensor or the like and displayed on the pressure gauge 72, and adjusted by the internal pressure regulating valve 7 to prevent the slime mixed with the hardening material from being excessively discharged or retained.
一方、注入ロッド１の重合噴射ノズル３から高圧噴射さ
れた硬化材は、内圧調整管５のスライム吸入によって密
度調整され、空隙率の増した周辺土壌を撹拌混合して円
柱上に地盤硬化材注入層を造成して行く。そして、この
地盤硬化材注入層が目的に応じて並列造成されて覆工層
等を構成していくものである。On the other hand, the hardening material injected at high pressure from the polymerization injection nozzle 3 of the injection rod 1 has its density adjusted by suction of slime through the internal pressure adjustment pipe 5, stirs and mixes the surrounding soil with increased porosity, and injects the ground hardening material onto the cylinder. Build layers. Then, these soil hardening material injection layers are constructed in parallel according to the purpose to constitute a lining layer, etc.
本発明は以上のように構成したので、排出し過ぎれば注
入効果がなく、滞留し過ぎれば硬化材噴流の到達距離や
破砕力を減殺し、公害の発生因ともなる泥水スラッジを
内圧調整管によって圧力コントロールすると共に滞留エ
アーの排出を可能にすることによって側方注入において
も有利なエアー包含噴射による注入を可能にしたもので
ある。また、噴射ノズルの直近において過剰スライムを
吸入除去すると共に、圧力コントロールによる注入管理
により噴射圧を効果的にして硬化材噴流の到達距離を伸
長し、純度の高い大経の側方硬化材注入層か造成できる
。更に、泥水スラッジの処理を同時に行うことかでき、
作業面、コスト面の両面から効率を高める効果がある。Since the present invention is configured as described above, if too much is discharged, there will be no injection effect, and if too much stagnation occurs, the reaching distance and crushing force of the hardening material jet will be reduced, and the muddy water sludge, which can cause pollution, can be removed by the internal pressure regulating pipe. By controlling the pressure and making it possible to discharge accumulated air, injection using air-containing injection, which is advantageous even in side injection, is made possible. In addition, in addition to suctioning and removing excess slime in the vicinity of the injection nozzle, the injection pressure is effectively controlled by pressure control to extend the reach of the hardening material jet, resulting in a highly pure lateral hardening material injection layer. or can be created. Furthermore, muddy water sludge can be treated at the same time.
This has the effect of increasing efficiency from both a work and cost perspective.
図は本発明の１つの実施例としてエアー包含噴射注入の
場合を例として示すもので、第１図は施工状況を示す全
体説明図、第２図は注入ロッドと内圧調整管の関係を示
す第１図Ａ−Ａ部の拡大横断面図である。
１〜注入ロツト ２〜操作機構 ３〜重合噴射ノズル
３１〜バツカー ４〜スイヘル ５〜内圧調整管 ６〜
吸入スリツト ７〜内圧調整弁７１〜排泥ホース ７２
〜圧力ゲ一シ
Ｇ〜対象地ＩｊｌＥ〜硬化材浸透域The figures show an example of air-containing injection injection as one embodiment of the present invention. Fig. 1 is an overall explanatory diagram showing the construction situation, and Fig. 2 is a diagram showing the relationship between the injection rod and the internal pressure adjustment pipe. FIG. 1 is an enlarged cross-sectional view of section A-A in FIG. 1~Injection rod 2~Operation mechanism 3~Polymerization injection nozzle
31 ~ Back car 4 ~ Suiheru 5 ~ Internal pressure adjustment pipe 6 ~
Suction slit 7 ~ Internal pressure regulating valve 71 ~ Sludge removal hose 72
~Pressure gauge G~Target area IjlE~Hardening material penetration area
Claims (2)
ッドから噴射される高圧硬化材噴流の到達射程距離内に
、側壁に泥水スライムを吸入するスリットを設け、後端
に内圧調整弁を備えた内圧調整管を注入ロッドと平行し
て挿入し、硬化材の噴射注入時に発生する泥水スライム
を、内圧調整管の調整弁によって圧力調整しながら、吸
入スリットに・吸入して排泥することを特徴とする側方
注入に、おける内圧調整排泥工法(1) A slit for sucking muddy slime is provided on the side wall at a position above the inserted injection rod and within the range of the high-pressure hardening material jet injected from the injection rod, and an internal pressure regulating valve is provided at the rear end. An internal pressure adjustment tube is inserted parallel to the injection rod, and the muddy slime generated during injection of hardening material is sucked into the suction slit and drained while adjusting the pressure with the adjustment valve of the internal pressure adjustment tube. Characterized by side injection, internal pressure adjustment method for removing sludge
入するようにした特許請求の範囲（１）記載の側方注入
における内圧調整排泥工法(2) Internal pressure adjustment method for sludge drainage in lateral injection according to claim (1), in which a pressure measuring mechanism inside and outside the pipe is installed and inserted into the internal pressure adjustment pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2316154A JPH0768695B2 (en) | 1990-11-22 | 1990-11-22 | Sliding method for adjusting internal pressure in lateral injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2316154A JPH0768695B2 (en) | 1990-11-22 | 1990-11-22 | Sliding method for adjusting internal pressure in lateral injection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04189916A true JPH04189916A (en) | 1992-07-08 |
| JPH0768695B2 JPH0768695B2 (en) | 1995-07-26 |
Family
ID=18073882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2316154A Expired - Lifetime JPH0768695B2 (en) | 1990-11-22 | 1990-11-22 | Sliding method for adjusting internal pressure in lateral injection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0768695B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0726549A (en) * | 1993-07-08 | 1995-01-27 | Chem Grouting Co Ltd | Column jet grout construction |
| JPH0790838A (en) * | 1993-09-20 | 1995-04-04 | Tokiwa Kensetsu Kk | Underground slurry discharge engineering and its device |
| JPH0813467A (en) * | 1994-06-29 | 1996-01-16 | Nit Co Ltd | Preparation method for solidified layer with insertion of core material as well as device and core material therefor |
| JP2001254350A (en) * | 2000-03-09 | 2001-09-21 | Tekken Constr Co Ltd | Ground improvement device and its improvement method |
| JP2002206233A (en) * | 2001-01-12 | 2002-07-26 | Tekken Constr Co Ltd | Construction method and device for ground improvement, and device for measuring internal pressure of ground |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5421016A (en) * | 1977-07-19 | 1979-02-16 | Shimazaki Mixing Equip | Method of injecting grout and its device |
| JPS6255316A (en) * | 1985-09-04 | 1987-03-11 | Yuji Kaneko | Method and apparatus for forming continuous horizontal columnar wall |
-
1990
- 1990-11-22 JP JP2316154A patent/JPH0768695B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5421016A (en) * | 1977-07-19 | 1979-02-16 | Shimazaki Mixing Equip | Method of injecting grout and its device |
| JPS6255316A (en) * | 1985-09-04 | 1987-03-11 | Yuji Kaneko | Method and apparatus for forming continuous horizontal columnar wall |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0726549A (en) * | 1993-07-08 | 1995-01-27 | Chem Grouting Co Ltd | Column jet grout construction |
| JPH0790838A (en) * | 1993-09-20 | 1995-04-04 | Tokiwa Kensetsu Kk | Underground slurry discharge engineering and its device |
| JPH0813467A (en) * | 1994-06-29 | 1996-01-16 | Nit Co Ltd | Preparation method for solidified layer with insertion of core material as well as device and core material therefor |
| JP2001254350A (en) * | 2000-03-09 | 2001-09-21 | Tekken Constr Co Ltd | Ground improvement device and its improvement method |
| JP2002206233A (en) * | 2001-01-12 | 2002-07-26 | Tekken Constr Co Ltd | Construction method and device for ground improvement, and device for measuring internal pressure of ground |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0768695B2 (en) | 1995-07-26 |
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