JPS5820819A - Method and apparatus for injecting grout into ground - Google Patents
Method and apparatus for injecting grout into groundInfo
- Publication number
- JPS5820819A JPS5820819A JP11710481A JP11710481A JPS5820819A JP S5820819 A JPS5820819 A JP S5820819A JP 11710481 A JP11710481 A JP 11710481A JP 11710481 A JP11710481 A JP 11710481A JP S5820819 A JPS5820819 A JP S5820819A
- Authority
- JP
- Japan
- Prior art keywords
- injection
- tube
- ground
- pipe
- injection material
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、地中に挿入した注入管の先端から高圧噴ｆｉ
ｔによって水平方向に掘進し、掘崩した土砂な回流する
孔壁保譲水と共に機料して排出し地中に空隙を造る一方
、岡空ＩＩ＃ＩＣ地盤注入材を注入充填するようｋした
地盤注入材０注入方法と装置に関する亀のである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides high-pressure injection from the tip of an injection pipe inserted underground.
The soil is excavated in the horizontal direction by t, and the excavated earth and sand are discharged together with the circulating water from the hole wall to create a void in the ground. This article is about the material injection method and device.
従来、止氷壁中地下達絖ＩＩＯ造威には地盤硬化剤の噴
射注入による注入工法等が行なわれてきたが、注入範囲
には自ら限界がある一方、注入材も液状のものに限定さ
れ、周辺土壌との攪拌混合による硬化層程度の強度以上
は期待すすることかできなかった。In the past, injection methods such as injection of soil hardening agents have been used to construct ice-stopping walls and underground reaches IIO, but there are limits to the injection range, and the injection materials are also limited to liquids. It could not be expected that the strength would be greater than that of a hardened layer created by stirring and mixing with the surrounding soil.
本発明はこのような限界を打ち破り、注入範囲を飛陪的
に拡張する一方、注入材の種類も限定されず巾広い注入
を行なえる地盤注入材の注入方法と装置を提供するもの
である。The present invention overcomes these limitations and provides a method and apparatus for injecting a ground injection material that dramatically expands the injection range and allows for a wide range of injections without limiting the type of injection material.
掘削刃３が設けられている。この噴出管１は注入材の性
質により （例えげ、コンクリートの場合にはトレミー
管のような構造にする。）内部構造が注入し易いように
すれば、その注入材の専用装置としての意味を持ち得る
０噴出管ｌの開閉１！１２によって開閉される注入材噴
出口４から、一定長Ｆ管６が開口する０す７ト管６は送
気管１６によって管内に送られるエアが上昇するａに生
ずる負圧−より【排土水を吸入する仕組となっており、
スイベル７を介して地上の水ＩＩｓに連絡し、土砂を巻
き込んだ排土水を水槽８に排出し、水槽８内で濾過沈澱
された水は、放水管１１を通じて孔内に供給されるよう
虻なっている・先ず、放水管１１から清水又はベントナ
イト箪等Ｏ孔壁保護水を供給しながら、注入管ムを回転
下降させることにより掘削刃３で地盤を掘削して、挿入
口Ｂを形成する◎こｏｉｉｉ、 ＃閉蓋ｔｚｔｉ下方か
らの土圧な受けて円錐状に閉鎖され、注入材噴出口４へ
の土砂等の侵入を防いでいる＠高圧ジェット噴射管Ｓの
上端はスイベル７を介して高圧ホース１５に連結する０
エアリフト管２内の噴出管１は支持杆１４ ’に
よってエアリフト管２で支持され、更にエアリフト管２
は上端をスイベル１を介してエアポンプ９に通じた送気
管１６が吸入口より一定長さ上部において開口し、管内
に送られるエアによって負圧を生じ、吸入した排土水を
水槽８に吐出す排水管１７を同じくスイベル７を介して
連結する。A digging blade 3 is provided. Depending on the nature of the injection material (for example, in the case of concrete, the injection pipe 1 should have a structure similar to a tremie pipe), if the internal structure is designed to facilitate injection, it can be used as a dedicated device for the injection material. From the injection material spout 4 which is opened and closed by the opening and closing of the jet pipe 1 which can be held, a fixed length F pipe 6 is opened, and the air sent into the pipe by the air supply pipe 16 rises. The system is designed to suck in wastewater from the negative pressure generated in the
The ground water IIs is connected via the swivel 7, and the wastewater containing soil is discharged into the water tank 8. First, while supplying fresh water or O hole wall protection water such as bentonite from the water discharge pipe 11, the injection pipe is rotated and lowered to excavate the ground with the excavation blade 3 to form the insertion port B. ◎Coiii, #Closing lid tzti The upper end of the high-pressure jet injection pipe S, which is closed in a conical shape due to the earth pressure from below and prevents earth and sand from entering the injection material spout 4, is connected via the swivel 7. 0 connected to the high pressure hose 15
The ejection pipe 1 in the air lift pipe 2 is supported in the air lift pipe 2 by a support rod 14', and the air lift pipe 2
An air supply pipe 16 whose upper end is connected to an air pump 9 via a swivel 1 is opened at a certain length above the suction port, and the air sent into the pipe generates negative pressure, and the sucked waste water is discharged into the water tank 8. The drain pipe 17 is also connected via the swivel 7.
また、水槽８内には水中ポンプ１０を設けた放水管１１
を設け、水槽８内で沈澱した清水やベントナイト等の上
澄水をｍＮ中の゛挿入口ＢＫ放出して孔壁な安定させて
いる。注入管ムは駆動機構１９Ｋｌ＆けた回転機構２０
で回転し、上部はウィンチからのワイヤーで吊持してい
る。内管１は上端にスイベル７を介して注入材ホース２
１と連結し、セメントミルク、コンクリート等を噴出管
１に供給し【いる。Also, inside the water tank 8, a water discharge pipe 11 equipped with a submersible pump 10 is provided.
is provided, and the supernatant water such as fresh water or bentonite precipitated in the water tank 8 is discharged from the insertion port BK in mN to stabilize the hole wall. The injection tube has a drive mechanism 19Kl & a girder rotation mechanism 20
The upper part is suspended by a wire from a winch. The inner tube 1 is connected to the injection material hose 2 via the swivel 7 at the upper end.
1 and supplies cement milk, concrete, etc. to the spout pipe 1.
本発Ｗ！Ａハ、回転機構２０で注入管ムＥｌｆ転を与え
先端Ｏ掘訓刃３で地盤を掘削すると共に、清水又抹ベン
トナイト等の波体を供給し、土砂と水を混合し、ｊ！に
こＯ水と土砂を送気管１６によって送られるエアの上昇
負圧によってり７ト管２円を吸上け、吸引された水と土
砂は水＠ｓｅｃ吐出される。この土砂線水榴１ｅフィル
ター１３で濾過さすると、噴出管ｌ内＃ｃ：Ｉンクリー
ト等の地盤注入材を供給し、高圧ジェット噴射管５の先
端の噴射ｆ−
ノズルから側方に高圧噴帯とエアーを噴射して水平方向
に土砂を穿孔して空隙Ｃを掘削しながら、注入管ムを上
昇させると注入材噴射口４が開放し、空隙ＣｊＫ注入材
が充填される◎更に側方ジェット噴射を回転させながら
上昇させれば円柱状の注入体が造成される０尚、注入材
の充填は噴出管ｌ状況は超音波珈定１６１８によって確
認される。The original W! A c. The rotation mechanism 20 gives the injection pipe Elf rotation, excavates the ground with the tip O-drilling blade 3, supplies fresh water or corrugated bentonite, etc., mixes earth and sand, and j! Water and earth and sand are sucked up into the pipe by the rising negative pressure of the air sent through the air supply pipe 16, and the sucked water and earth and sand are discharged as water@sec. When filtered through this sediment line water grenade 1e filter 13, a ground injection material such as #c:I concrete is supplied into the injection pipe l, and a high pressure injection zone is formed laterally from the injection f- nozzle at the tip of the high pressure jet injection pipe 5. While injecting air and drilling the earth and sand in the horizontal direction to excavate the void C, when the injection tube is raised, the injection material injection port 4 opens and the void CjK is filled with the injection material. ◎Further side jets If the injection is rotated and raised, a cylindrical injection body is created.In addition, the filling of the injection material and the condition of the injection pipe are confirmed by ultrasonic measurement 1618.
ジェット噴射管５か゛らエアーと共に噴射される′清水
勢０ＩＪｌｊｔＩＬは土砂を穿孔し、注入管の回転によ
ってこれを攪拌するから、これを巻き込む形でリフト管
２と噴出管ｌによって構成される徴入りフトｖ＠に吸入
芒れ土砂を排出する。充填される注入材は清水やベント
ナイト箪より比重が重く、噴射ノズル５より一定長さ下
方に噴出口４があるので、地盤注入材は保ｓｉ＊によっ
て流出することなく空隙〇に充填きれ順次前記と同じ動
作を繰り返しまた、注入管ムを徐々に引上げながらコン
クリート等を打設するので、コンクリートは凝結が早く
工期がｆｉｍでき、更に高密度のコンクリートの造成が
できる０まだ清水やベントナイトを使用するため、孔の
崩壊がなく安定する等の効果がある。The fresh water force injected with air from the jet injection pipe 5 perforates the earth and sand and stirs it by the rotation of the injection pipe. Discharge the suction awn and sand to v@. The injection material to be filled has a higher specific gravity than fresh water or bentonite, and since the injection port 4 is located a certain length below the injection nozzle 5, the ground injection material can be filled into the gap 〇 without flowing out due to the maintenance system*, and the above-mentioned steps can be performed sequentially. The same operation is repeated and concrete is poured while gradually pulling up the injection pipe, so the concrete sets quickly, shortens the construction period, and allows for the creation of higher-density concrete. Therefore, there is an effect that the pores do not collapse and are stable.
【図面の簡単な説明】
図面は本発明に係る地盤注入材の注入方法とその装置〇
一実施例を示すもので、第１図、第２図社施工段階を説
明する正ｒＩＥｌｉ＠１１第３図は管体の一部断面図で
ある０
１〜注入材噴出管 ２〜エアリフト管（外管）３〜掘削
刃 ４〜注入材噴出１口 ５〜高圧ジエツト噴射管 ６
〜＃上水１人リフト管 ７〜スイベル Ｓ〜氷水槽９〜
エアポンプ １０〜水中ポンプ １１〜放水管 １２〜
開閉蓋 １３〜フイルター １４〜支持杆 ｌｓ−高圧
ホース １６〜送気管 １７〜緋水管 １８〜超音波観
定器１９〜駆動機構 ２０〜ａ転機１１１ ２１〜注入
材ホース
Ａ〜注入管 Ｂ〜挿入口 Ｏ〜空隙[Brief explanation of the drawings] The drawings show an embodiment of the method and device for injecting the ground injection material according to the present invention. The figure is a partial cross-sectional view of the tube body.
~#Jousui 1 person lift pipe 7~Swivel S~Ice water tank 9~
Air pump 10 ~ Submersible pump 11 ~ Water discharge pipe 12 ~
Opening/closing lid 13~Filter 14~Support rod ls-High pressure hose 16~Air pipe 17~Hisui tube 18~Ultrasonic observation device 19~Drive mechanism 20~A switch 111 21~Injection material hose A~Injection pipe B~Insertion port O ~ void
Claims (3)
−口部より先端に央出しＣ−口する注入材噴出管とから
なる注入管本体を回転し、先端側に設けたｍｍ刃で掘削
しながら、孔内に清水又はベントナイト諌等Ｏｉ１体を
放出充填して孔壁の保護をはかると共に掘−土砂とこの
充填水を攪拌し、この攪拌水をエアリフト管で地上に吸
上ぜてｍｍ上を排土しながら、縦孔をｍｅ！Ａ ｔ、、
所定Ｏ＃Ｉ度に達したところで、高圧ジェット噴射管か
ら側方に高圧ジエツＦを噴射して水平方向に穿孔しなが
ら削土を充婁水＃Ｃ捲き込みエアリフト管で、これを機
側排土する一方、注入材噴出管から地盤注入材を噴出し
つつ注入管本体を上昇さ−ｔ″ｃ１引による空−に注入
材を充填することを特徴とする地盤注入材の注入方法。(1) Air lift pipe and high pressure jet injection pipe and their 07%
- Rotate the injection tube body consisting of the injection material spouting tube from the mouth to the center and discharge the injection material into the hole with the mm blade provided on the tip side, and release one body of Oi such as fresh water or bentonite into the hole. Fill the hole to protect the wall of the hole, stir the excavated earth and sand, and suck up the stirred water to the ground using an air lift pipe and remove the soil over a millimeter. At...
When the predetermined O#I degree is reached, high-pressure jet F is injected laterally from the high-pressure jet injection pipe to fill the excavated soil while drilling horizontally. 1. A method for injecting a ground injection material, which is characterized in that while the ground is being poured into the ground, the injection pipe body is raised while the injection material is being spouted from the injection material spouting pipe, and the empty space caused by the pulldown (t''c1) is filled with the injection material.
圧ジェットの側方噴射を回転上昇させながら行なうよう
にしたとと◇(2) In the method for injecting the ground injection material described in paragraph 1, the side injection of the high-pressure jet is performed while rotating upward.◇
口部より先端に央出して開口する注入材噴出管とからな
抄、先端＠ＫＩＩＩＩＩＩ刃を般社た注入管本体を駆動
機構によって回転上下動し得るようｋしたことを特徴と
する地盤注入材の注入装置◇(3) The air lift tube, the high-pressure jet injection tube, the injection material injection tube that opens centrally at the tip from each opening, and the injection tube body with the tip @ KIII blade rotated up and down by the drive mechanism. ◇
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11710481A JPS5820819A (en) | 1981-07-28 | 1981-07-28 | Method and apparatus for injecting grout into ground |
| BR8200462A BR8200462A (en) | 1981-07-28 | 1982-01-27 | PROCESS AND APPARATUS FOR FORMING STRUCTURES IN THE UNDERGROUND |
| KR820000485A KR840000824B1 (en) | 1981-07-28 | 1982-02-05 | Method and apparatus for grouting into the underground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11710481A JPS5820819A (en) | 1981-07-28 | 1981-07-28 | Method and apparatus for injecting grout into ground |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5820819A true JPS5820819A (en) | 1983-02-07 |
| JPH02492B2 JPH02492B2 (en) | 1990-01-08 |
Family
ID=14703495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11710481A Granted JPS5820819A (en) | 1981-07-28 | 1981-07-28 | Method and apparatus for injecting grout into ground |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5820819A (en) |
| KR (1) | KR840000824B1 (en) |
| BR (1) | BR8200462A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2564119A1 (en) * | 1984-05-09 | 1985-11-15 | Nit Co Ltd | METHOD AND APPARATUS FOR FORMING AN UNDERGROUND CONSOLIDATION STRUCTURE |
| JPS6351515A (en) * | 1986-08-20 | 1988-03-04 | Mitani Sekisan Kk | Excavator for ground improvement |
| JPH1181295A (en) * | 1997-09-10 | 1999-03-26 | Raito Kogyo Co Ltd | Method for ground improvement |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101052146B1 (en) * | 2009-09-01 | 2011-07-26 | 정순홍 | Ground improvement drilling device, construction method and construction management system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52144105A (en) * | 1976-05-26 | 1977-12-01 | Yasuo Yano | Method of building casttin place concrete foundation |
| JPS54117110A (en) * | 1978-03-02 | 1979-09-11 | Toda Construction | Method of construction of point excavation system ground hardening agent injection |
-
1981
- 1981-07-28 JP JP11710481A patent/JPS5820819A/en active Granted
-
1982
- 1982-01-27 BR BR8200462A patent/BR8200462A/en unknown
- 1982-02-05 KR KR820000485A patent/KR840000824B1/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52144105A (en) * | 1976-05-26 | 1977-12-01 | Yasuo Yano | Method of building casttin place concrete foundation |
| JPS54117110A (en) * | 1978-03-02 | 1979-09-11 | Toda Construction | Method of construction of point excavation system ground hardening agent injection |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2564119A1 (en) * | 1984-05-09 | 1985-11-15 | Nit Co Ltd | METHOD AND APPARATUS FOR FORMING AN UNDERGROUND CONSOLIDATION STRUCTURE |
| JPS6351515A (en) * | 1986-08-20 | 1988-03-04 | Mitani Sekisan Kk | Excavator for ground improvement |
| JPH1181295A (en) * | 1997-09-10 | 1999-03-26 | Raito Kogyo Co Ltd | Method for ground improvement |
Also Published As
| Publication number | Publication date |
|---|---|
| KR840000824B1 (en) | 1984-06-15 |
| KR830009323A (en) | 1983-12-19 |
| BR8200462A (en) | 1983-04-12 |
| JPH02492B2 (en) | 1990-01-08 |
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