JPH01190817A - Timbering covering layer construction method - Google Patents
Timbering covering layer construction methodInfo
- Publication number
- JPH01190817A JPH01190817A JP63013588A JP1358888A JPH01190817A JP H01190817 A JPH01190817 A JP H01190817A JP 63013588 A JP63013588 A JP 63013588A JP 1358888 A JP1358888 A JP 1358888A JP H01190817 A JPH01190817 A JP H01190817A
- Authority
- JP
- Japan
- Prior art keywords
- injection
- injection pipe
- flow path
- fresh water
- timbering
- 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 abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 62
- 239000007924 injection Substances 0.000 claims abstract description 62
- 239000013505 freshwater Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 12
- 230000008093 supporting effect Effects 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000243 solution Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Description
（産業上の利用分野）
本発明はトンネル等地中坑道の支保や止水を目的として
掘削地盤の周囲に造成する支保覆工層の造成工法に関す
るものである。
（従来の技術）
従来、トンネルの支保覆工については事前に成形された
セグメントを並列して行なう工法が行われてきたが、近
時注入管による硬化材注入によって行われるようになっ
てきた。しかしながら、充填密度と浸透性の問題がある
ためこれに使用される硬化材は緩結性の硬化材に限られ
ている。
（発明が解決しようとする課題）
上記のように緩結性の硬化材を用いた支保覆工は硬化時
間が長く、掘削速度に合わせて工事を進捗させることが
極めて困難であった。
また、充分な硬化が行われていない内に掘削が行われれ
ば支保効果を得ることができず重大な事故にもつながり
かねないという問題点があった。
（課題を解決するための手段）
従来注入による支保覆工、特に蓋部注入に瞬結性の効果
材が用いられなかったのは、瞬結性硬化材が２液性であ
り、２液の混合によって短時間で硬化するため、噴射さ
れた硬化材が充分に浸透充填する前に硬化して注入層に
疎密を生じ均質な硬化層を得ることができなかったこと
が一因となっている。また瞬結性硬化材の注入は充填密
度を高めるため、低圧注入により土粒子間の配列を崩さ
ずクリアランスを縫って浸透が行われることが重点とさ
れてきた。
本発明は瞬結性硬化材が噴射されるノズルの上部に清水
の噴射ノズルを設け、清水噴射による土粒子間のクリア
ランスの整序が行われた土壌に瞬結性硬化材を高圧噴射
するようにして、この問題に対処したものである。
（作 用）
その１流路に連通ずる噴射ノズルから高圧噴射される清
水は周辺土壌を切削して土粒子を整序するとその下部に
設けられたその２、その３流路の噴射ノズルが注入管の
抜去移動に伴なってその１ノズルの噴射跡Ｇこ瞬結性硬
化材を噴射し、高められた攪拌混合効果によって均質な
硬化材充填が行われる。
（実 施 例）
以下図面に従って本発明の詳細な説明する。
■は注入管でその１流路１１、その２流路１２、その３
流路１３を備え、各流路はそれぞれ噴射ノズル２１．２
２．２３に連通して開口する。注入管ｌの後端はスイベ
ル３を介して材料供給部に連絡するホース３１．３２．
３３に連結すると共に、台車４上に装置された注入管作
動機構５に支持される。
このように装置された注入管ｌを対象地盤ｘ１に向けて
推進挿入し、所定の深度に達したところで、その１流路
１１に清水、その２流路１２にＡ液、その３流路１３に
Ｂ液を２００ ｋｇ ／ ｃｔＡ 〜５００ ｋｇ／
ｃｔの高圧力で圧送し、噴射ノズル２１．２２．２３か
らそれぞれ高圧噴射し注入管を回転させながら、抜去方
向に後退させ上部に設けられた流路１１の噴射ノズル２
１からの清水噴射によって整序された軌跡部ｙにノズル
２２．２３から硬化材を注入して円筒状に硬化材層を造
成する。硬化層Ｘ１を造成した後、これと並列して硬化
層ｘ２、更にｘ３と順次これを並列して造成し、支保覆
工層を造成するものである。
（発明の効果）
本発明は以上のように構成したので、瞬結性硬化材によ
り短時間で硬化する強度の高い均質な支保覆工層を造成
できる効果がある。従って、水脈のある地盤や緊急止水
覆工にも活用できると共に硬化待機時間等従来作業に要
した無駄な時間を省き、作業能率を大巾に高めたもので
ある。(Industrial Application Field) The present invention relates to a construction method for constructing a support lining layer around excavated ground for the purpose of supporting and water-stopping underground shafts such as tunnels. (Prior Art) Traditionally, tunnel shoring and lining has been carried out using a construction method in which pre-formed segments are lined up in parallel, but recently it has come to be carried out by injecting a hardening material through an injection pipe. However, due to problems with packing density and permeability, the hardening materials used for this are limited to slow-setting hardening materials. (Problems to be Solved by the Invention) As described above, the shoring lining using a slowly setting hardening material takes a long time to harden, making it extremely difficult to progress the construction work in accordance with the excavation speed. Furthermore, if excavation is carried out before sufficient hardening has taken place, there is a problem in that the supporting effect cannot be obtained and this may lead to a serious accident. (Means for solving the problem) The reason why instant-setting effect materials have not been used for shoring lining by conventional injection, especially for lid injection, is that instant-setting hardening materials are two-component. One of the reasons is that because the mixture cures in a short time, the injected hardening material hardens before it has sufficiently penetrated and filled, causing the injected layer to become dense and uneven, making it impossible to obtain a homogeneous hardened layer. . Furthermore, in order to increase the packing density when injecting instant hardening materials, emphasis has been placed on low-pressure injection to allow infiltration to occur through the clearances without disrupting the arrangement of soil particles. In the present invention, a fresh water injection nozzle is provided above the nozzle through which the flash-setting hardening material is injected, and the flash-setting hardening material is sprayed at high pressure onto the soil where the clearance between soil particles has been adjusted by spraying the fresh water. This problem has been addressed. (Function) Fresh water is injected at high pressure from the injection nozzle communicating with the first flow path, which cuts the surrounding soil and sorts the soil particles, and then the injection nozzles of the second and third flow paths installed below it inject it. As the pipe is removed and moved, the spray trace G of that one nozzle injects the instant setting hardening material, and the enhanced stirring and mixing effect results in homogeneous filling of the hardening material. (Example) The present invention will be described in detail below with reference to the drawings. ■ is the injection pipe, 1st channel 11, 2nd channel 12, 3rd channel
A flow path 13 is provided, each flow path having a respective injection nozzle 21.2.
2.Opens in communication with 23. The rear end of the injection tube l connects via a swivel 3 with a hose 31, 32.
33, and is supported by an injection pipe operating mechanism 5 installed on the carriage 4. The injection pipe l thus configured is pushed and inserted toward the target ground x1, and when it reaches a predetermined depth, fresh water is added to the first flow path 11, liquid A is added to the second flow path 12, and liquid A is added to the third flow path 13. Add liquid B to 200 kg/ctA ~500 kg/
ct at a high pressure, and injects at high pressure from the injection nozzles 21, 22, and 23, respectively, and while rotating the injection pipe, retreats in the extraction direction to the injection nozzle 2 of the flow path 11 provided at the upper part.
A hardening material is injected from nozzles 22 and 23 into the trajectory portion y that has been ordered by spraying fresh water from Nozzles 22 and 23 to form a hardening material layer in a cylindrical shape. After forming the hardened layer X1, a hardened layer x2 and then x3 are formed in parallel with this in order to form a support lining layer. (Effects of the Invention) Since the present invention is configured as described above, it has the effect of being able to create a homogeneous support lining layer with high strength that hardens in a short time using the instant hardening material. Therefore, it can be used for ground with water veins or for emergency water-stop lining construction, and it also eliminates wasted time required for conventional work, such as waiting time for curing, and greatly increases work efficiency.
図は本発明の実施例を示すもので、第１図は施工状況を
示す側面図、第２図は注入管の構造を示す縦断側面図で
ある。
１〜注入管 １１〜その１′流路 １２〜その２流路１
３〜その３流路 ２１〜清水噴射ノズル２２〜Ａ液噴射
ノズル ２３〜Ｂ液噴射ノズル３〜スイベル ３１．３
２．３３〜圧送ホ一ス４〜台車 ５〜注入管作動機構
ｘｌ、ｘ２、ｘ３〜硬化層地盤
ｙ〜清水噴射軌跡
特 許 出 願人 株式会社エヌ、アイ、ティ代理人
弁理士 石 川 幸 吉
手続補正書
昭和６３年８月１５日
特許庁長官 吉 １）文 毅 殿
１、事件の表示
昭和６３年特許願第１３５８８号
２゜発明の名称
支保覆工層の造成工法
３、補正をする者
′ 事件との関係 特許出願人件 所 東京
都町田市三輪町１４８７番地株式会社エヌ、アイ、ティ
氏 名 代表取締役 中 西 渉
４、代理人の１０３
住 所 東京都中央区日本橋本町４−１１−６共同ビ
ル（新日本橋駅前）６階
氏 名 弁理士（７３６２）石 川 幸 吉５
、補正の対象
明 細 書
６、補正の内容 別紙訂正明細書のとおり訂正明細
書
１、発明の名称
支保覆工層の造成工法
２、特許請求の範囲
隔絶された３流路と先端側壁に各流路に連通ずる噴射ノ
ズルを備えその１流路の噴射ノズルをその２、その３流
路の噴射ノズルより上部に設けた注入管を対象地盤中に
挿入し、所定深度に達したところで、その１流路に清水
、その２流路に硬化材Ａ液、その３流路に硬化材Ｂ液を
高圧力で圧送することにより、各噴射ノズルから高速噴
流として噴射しながら、注入管を回転しつつ抜去方向に
移動して注入管軌跡に硬化層を造成することを特徴とす
る支保覆工層の造成工法
３、発明の詳細な説明
（産業上の利用分野）
本発明はトンネル等地中坑道の支保や止水を目的として
掘削地盤の周囲に造成する支保覆工層の造成工法に関す
るものである。
（従来の技術）
従来、１−ンネルの支保覆工については事前に成形され
たセグメントを並列して行なう工法が行われてきたが、
近時注入管による硬化材注入によって行われるようにな
ってきた。しかしながら、充填密度と浸透性の問題があ
るためこれに使用される硬化材は緩結性の硬化材に限ら
れている。
（発明が解決しようとする課題）
上記のように緩結性の硬化材を用いた支保覆工は硬化時
間が長く、掘削速度に合わせて工事を進捗させることが
極めて困難であった。
また、充分な硬化が行われていない内に掘削が行われれ
ば支保効果を得ることができず重大な事故にもつながり
かねないという問題点があった。
（課題を解決するための手段）
従来注入による支保覆工、特に蓋部注入に瞬結性の効果
材が用いられなかったのは、瞬結性硬化材が２液性であ
り、２液の混合によって短時間で硬化するため、噴射さ
れた硬化材が充分に浸透充填する前に硬化して注入層に
疎密を生じ均質な硬化層を得ることができなかったこと
が一因となっている。また瞬結性硬化材の注入は充填密
度を高めるため、低圧注入により土粒子間の配列を崩さ
ずクリアランスを縫って浸透が行われることが重点とさ
れてきた。
本発明は瞬結性硬化材が噴射されるノズルの上部に清水
の噴射ノズルを設け、清水噴射による土粒子間のクリア
ランスの整序が行われた土壌に瞬結性硬化材を高圧噴射
するようにして、この問題に対処したものである。本発
明において（作 用）
その１流路に連通ずる噴射ノズルから高圧噴射される清
水は周辺土壌を切削して土粒子を整序するとその下部に
設けられたその２、その３流路の噴射ノズルが注入管の
抜去移動に伴なってその１ノズルの噴射跡に瞬結性硬化
材を噴射し、高められた攪拌混合効果によって均質な硬
化材充填が行われる。
（実 施 例）
以下図面に従って本発明の詳細な説明する。。
１は注入管でその１流路１１、その２流路１２、その３
流路１３を備え、各流路はそれぞれ噴射ノズル２１．２
２．２３に連通して開口する。注入管１の後端はスイベ
ル３を介して材料供給部に連絡するホース３１．３２．
３３、に連結すると共に、台車４上に装置された注入管
作動機構５に支持されイルのような液体とこれに従って
応動する弾性膜によって構成されている。応動体を構成
するに推進している。このように装置された注入管１を
対象地盤ｘ１に向けて推進挿入し、所定の深度に達した
ところで、その１流路１１に清水、その２流路１２にＡ
液、その３流路１３にＢ液を２００ｋｇ ／ ｃｆ〜５
００ ｋｇ／ｃ／の高圧力で圧送し、噴射ノズル２１．
２２．２３からそれぞれ高圧噴射し注入管を回転させな
がら、抜去方向に後退させ上部に設げられた流１路１１
の噴射ノズル２１からの清水噴射によって整序された軌
跡部ｙにノズル２２．２３から硬化材を注入して円筒状
に硬化材層を造成する。硬化層Ｘ１を造成した後、これ
と並列して硬化層ｘ２、更にｘ３と順次これを並列して
造成し、支保覆工層を造成するものである。
（発 明 の 効 果）
本発明は以上のように構成したので、瞬結性硬化材によ
り始時間で硬化する強度の高い均質な支保覆工層を造成
できる効果がある。従って、水脈のある地盤や緊急止水
覆工にも活用できると共に硬化待機時間等従来作業に要
した無駄な時間を省き、作業能率を大巾に高めたもので
ある。The drawings show an embodiment of the present invention, with FIG. 1 being a side view showing the construction situation, and FIG. 2 being a longitudinal sectional side view showing the structure of the injection pipe. 1 - Injection pipe 11 - Part 1' flow path 12 - Part 2 flow path 1
3 - Part 3 flow path 21 - Fresh water injection nozzle 22 - A liquid injection nozzle 23 - B liquid injection nozzle 3 - Swivel 31.3
2.33 ~ Pressure feed hose 4 ~ Dolly 5 ~ Injection pipe operating mechanism xl, x2, x3 ~ Hardened layer ground y ~ Fresh water injection locus Patent Applicant: N.I.T Co., Ltd. Representative Patent Attorney Yuki Ishikawa Kichi procedural amendment August 15, 1988 Director General of the Patent Office Kichi 1) Moon Tsuyoshi 1. Indication of the case 1988 Patent Application No. 13588 2. Name of the invention Method for constructing support and lining layer 3. Make amendments. Person' Relationship with the case Patent applicant Address N.I.T Co., Ltd., 1487 Miwa-cho, Machida-shi, Tokyo Name Representative director Wataru Nakanishi 4, agent 103 Address 4-11- Nihonbashi Honmachi, Chuo-ku, Tokyo 6 Kyodo Building (Shin-Nihonbashi Station) 6th floor Name Patent Attorney (7362) Kokichi Ishikawa 5
, Description subject to the amendment 6, Contents of the amendment As shown in the attached amended specification Amended specification 1, Name of the invention Construction method for constructing support and lining layer 2, Claims An injection pipe with an injection nozzle that communicates with the flow path and the injection nozzle of the first flow path provided above the injection nozzles of the second and third flow paths is inserted into the target ground, and when it reaches a predetermined depth, the By feeding fresh water into one flow path, hardening material A liquid into the second flow path, and hardening material B liquid into the third flow path under high pressure, the injection tube is rotated while being sprayed as a high-speed jet from each injection nozzle. 3. Detailed Description of the Invention (Field of Industrial Application) The present invention is applicable to underground shafts such as tunnels, etc. This relates to a construction method for creating a shoring lining layer around excavated ground for the purpose of supporting and water-stopping. (Prior art) Conventionally, for single-thickness shoring, a construction method has been used in which pre-formed segments are placed in parallel.
Recently, this has been carried out by injecting hardening material through an injection pipe. However, due to problems with packing density and permeability, the hardening materials used for this are limited to slow-setting hardening materials. (Problems to be Solved by the Invention) As described above, the shoring lining using a slowly setting hardening material takes a long time to harden, making it extremely difficult to progress the construction work in accordance with the excavation speed. Furthermore, if excavation is carried out before sufficient hardening has taken place, there is a problem in that the supporting effect cannot be obtained and this may lead to a serious accident. (Means for solving the problem) The reason why instant-setting effect materials have not been used for shoring lining by conventional injection, especially for lid injection, is that instant-setting hardening materials are two-component. One of the reasons is that because the mixture cures in a short time, the injected hardening material hardens before it has sufficiently penetrated and filled, causing the injected layer to become dense and uneven, making it impossible to obtain a homogeneous hardened layer. . Furthermore, in order to increase the packing density when injecting instant hardening materials, emphasis has been placed on low-pressure injection to allow infiltration to occur through the clearances without disrupting the arrangement of soil particles. In the present invention, a fresh water injection nozzle is provided above the nozzle through which the flash-setting hardening material is injected, and the flash-setting hardening material is sprayed at high pressure onto the soil where the clearance between soil particles has been adjusted by spraying the fresh water. This problem has been addressed. In the present invention (function), the fresh water injected at high pressure from the injection nozzle communicating with the first flow path cuts the surrounding soil and sorts the soil particles, and then the fresh water is injected into the second and third flow paths provided below. As the injection tube is removed and moved, the nozzle injects the flash-setting hardening material into the spray trace of that one nozzle, and the enhanced stirring and mixing effect results in homogeneous filling of the hardening material. (Example) The present invention will be described in detail below with reference to the drawings. . 1 is an injection pipe, 1st channel 11, 2nd channel 12, 3rd channel
A flow path 13 is provided, each flow path having a respective injection nozzle 21.2.
2.Opens in communication with 23. The rear end of the injection pipe 1 connects via a swivel 3 with a hose 31, 32.
33, and is supported by an injection tube actuating mechanism 5 installed on the carriage 4, and is composed of a liquid such as an oil and an elastic membrane that responds accordingly. We are promoting the formation of a response body. The injection pipe 1 configured in this way is propelled and inserted toward the target ground
liquid, 200 kg / cf ~ 5 of B liquid in the 3 flow path 13
00 kg/c/ high pressure, and the injection nozzle 21.
22 and 23, respectively, and while rotating the injection pipe, the flow path 11 provided at the upper part was moved backward in the extraction direction.
A hardening material is injected from nozzles 22 and 23 into the ordered trajectory portion y by fresh water jetting from the injection nozzle 21 to form a cylindrical hardening material layer. After forming the hardened layer X1, a hardened layer x2 and then x3 are formed in parallel with this in order to form a support lining layer. (Effects of the Invention) Since the present invention is constructed as described above, it has the effect of being able to create a homogeneous support lining layer with high strength that hardens within the initial time using the instant hardening material. Therefore, it can be used for ground with water veins or for emergency water-stop lining construction, and it also eliminates wasted time required for conventional work, such as waiting time for curing, and greatly increases work efficiency.
図は本発明の実施例を示すもので、第１図は施工状況を
示す側面図、第２図は注入管の構造を示す縦断側面図で
ある。
１〜注入管 １１〜その１流路 １２〜その２流路１３
〜その３流路 ２１〜清水噴射ノズル２２〜Ａ液噴射ノ
ズル ２３〜Ｂ液噴射ノズル３〜スイベル ３１．３２
．３３〜圧送ホ一ス４〜台車 ５〜注入管作動機構。
ｘｌ、ｘ２、ｘ３〜硬化層地盤
ｙ〜清水噴射軌跡
特許 出 願人 株式会社エヌ、アイ、ティ代理人弁
理士 石 川 幸 吉The drawings show an embodiment of the present invention, with FIG. 1 being a side view showing the construction situation, and FIG. 2 being a longitudinal sectional side view showing the structure of the injection pipe. 1 - Injection pipe 11 - Part 1 flow path 12 - Part 2 flow path 13
~Part 3 flow path 21~Fresh water injection nozzle 22~A liquid injection nozzle 23~B liquid injection nozzle 3~Swivel 31.32
．． 33~Pressure hose 4~Dolly 5~Injection pipe operating mechanism. XL, X2,
Claims (1)
ズルを備えその１流路の噴射ノズルをその２、その３流
路の噴射ノズルより上部に設けた注入管を対象地盤中に
挿入し、所定深度に達したところで、その１流路に清水
、その２流路に硬化材Ａ液、その３流路に硬化材Ｂ液を
高圧力で圧送することにより、各噴射ノズルから高速噴
流として噴射しながら、注入管を回転しつつ抜去方向に
移動して注入管軌跡に硬化層を造成することを特徴とす
る支保覆工層の造成工法Three separated channels and an injection nozzle communicating with each channel are installed on the tip side wall, and an injection pipe is placed above the injection nozzle of the first channel, and the injection nozzle of the third channel, into the target ground. When the insertion reaches a predetermined depth, fresh water is inserted into the first flow path, hardening material A liquid into the second flow path, and hardening material B liquid into the third flow path under high pressure. A method for creating a support lining layer, which is characterized by creating a hardened layer on the trajectory of the injection pipe by rotating the injection pipe and moving in the removal direction while injecting it as a jet stream.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63013588A JPH0756133B2 (en) | 1988-01-26 | 1988-01-26 | Construction method of support lining layer |
| KR1019890000821A KR930002970B1 (en) | 1988-01-26 | 1989-01-26 | Timbering covering layer construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63013588A JPH0756133B2 (en) | 1988-01-26 | 1988-01-26 | Construction method of support lining layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01190817A true JPH01190817A (en) | 1989-07-31 |
| JPH0756133B2 JPH0756133B2 (en) | 1995-06-14 |
Family
ID=11837352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63013588A Expired - Lifetime JPH0756133B2 (en) | 1988-01-26 | 1988-01-26 | Construction method of support lining layer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0756133B2 (en) |
| KR (1) | KR930002970B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100322314B1 (en) * | 1998-05-09 | 2002-04-17 | 와타루 나카니시 | Method for creating ground hardened layer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55108518A (en) * | 1979-02-15 | 1980-08-20 | Sanshin Kensetsu Kogyo Kk | Method for ground stabilization |
| JPS58189411A (en) * | 1983-03-08 | 1983-11-05 | Kyokado Eng Co Ltd | Composite grout work |
| JPS61211418A (en) * | 1985-03-15 | 1986-09-19 | Shigeharu Arima | Chemical solution pouring method |
-
1988
- 1988-01-26 JP JP63013588A patent/JPH0756133B2/en not_active Expired - Lifetime
-
1989
- 1989-01-26 KR KR1019890000821A patent/KR930002970B1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55108518A (en) * | 1979-02-15 | 1980-08-20 | Sanshin Kensetsu Kogyo Kk | Method for ground stabilization |
| JPS58189411A (en) * | 1983-03-08 | 1983-11-05 | Kyokado Eng Co Ltd | Composite grout work |
| JPS61211418A (en) * | 1985-03-15 | 1986-09-19 | Shigeharu Arima | Chemical solution pouring method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100322314B1 (en) * | 1998-05-09 | 2002-04-17 | 와타루 나카니시 | Method for creating ground hardened layer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0756133B2 (en) | 1995-06-14 |
| KR890012064A (en) | 1989-08-24 |
| KR930002970B1 (en) | 1993-04-16 |
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