JPS5829373B2 - Grout injection method - Google Patents
Grout injection methodInfo
- Publication number
- JPS5829373B2 JPS5829373B2 JP51067016A JP6701676A JPS5829373B2 JP S5829373 B2 JPS5829373 B2 JP S5829373B2 JP 51067016 A JP51067016 A JP 51067016A JP 6701676 A JP6701676 A JP 6701676A JP S5829373 B2 JPS5829373 B2 JP S5829373B2
- Authority
- JP
- Japan
- Prior art keywords
- grout
- injection method
- section
- opposite directions
- shaped cross
- 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.)
- Expired
Links
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Description
【発明の詳細な説明】
この発明は止水壁等の造成のためのグラウト注入工法に
関するもので、その目的はきわめて経済的な連続盤を造
成できる工法を提供することにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of grouting for constructing water-stop walls, etc., and its purpose is to provide a method of constructing a continuous plate that is extremely economical.
従来、グラウト注入により土圧の軽減、支持力の増強、
止水壁の造成を図る場合、注入管を連続的に回転、引き
上げ注入を行い、円柱状の杭を水平方向に一直線上に連
続させる方法、あるいは千鳥状に連続させる方法等が採
られていた。Traditionally, grouting has been used to reduce soil pressure, increase bearing capacity,
When constructing a water stop wall, the injection pipe was continuously rotated, pulled up and injected, and cylindrical piles were placed in a straight line horizontally or in a staggered pattern. .
しかしながら本来は板状のものを造成すれば足りるので
あるから、この種の工法では止水等を目的とする場合、
止水壁の前後方向の一部は余分に注入しきわめて不経済
である。However, since it is originally sufficient to construct a plate-like structure, when using this type of construction method for purposes such as water stopping,
Part of the water cutoff wall in the front and back direction requires extra injection, which is extremely uneconomical.
この発明は前記従来の問題点に対処するために提案され
たものである。This invention has been proposed to address the above-mentioned conventional problems.
そしてこの発明は断面扇形の固結体柱を水平方向に連続
させるようにグラウト注入を行うものである。According to the present invention, grout is injected so that the solid column having a sector-shaped cross section is continuous in the horizontal direction.
以下この発明を図面に示す実施例によって説明する。The present invention will be explained below with reference to embodiments shown in the drawings.
第１図は注入管１をまずＡ１位置に設置し、この注入管
１を造成すべき地中壁に沿って地盤中に挿入し、はぼ１
２０度程鹿の範囲内において周方向に回転しながらグラ
ウトを注入する。Figure 1 shows that the injection pipe 1 is first installed at the A1 position, and the injection pipe 1 is inserted into the ground along the underground wall to be constructed.
Inject grout while rotating in the circumferential direction within the range of about 20 degrees.
これによって断面扇形の固結体Ｓ１ を造成できる。As a result, a solid body S1 having a sector-shaped cross section can be created.
ここで注入管１０回転には油圧回転手段等を用いて注入
管１の上部の首振りを行う。Here, the upper part of the injection tube 1 is oscillated by using a hydraulic rotation means or the like for the 10 rotations of the injection tube.
次いでこの固結体Ｓ１ の先端部位置Ａ２から反対向に
グラウト注入を行い逆向きの断面扇形の固結体Ｓ２を造
成する。Next, grout is injected in the opposite direction from the tip end position A2 of this solid body S1 to create a solid body S2 having a fan-shaped cross section in the opposite direction.
以下同様の操作により注入管１を地盤中に所要間隔にＡ
１．Ａ２．Ａ３曲・・の配置が千鳥状になるように挿入
し、交互に反対向きのＳ３ ｙ Ｓ４ ｐＳ５．
Ｓ６ のグラウト注入を行い、断面扇形の交互に反対向
きの団結体を水平方向に連続して形成させた連続地中壁
を構成する。Following the same operation, insert the injection pipe 1 into the ground at the required interval A.
1. A2. Insert songs A3... in a staggered arrangement, and alternately insert S3 y S4 pS5... in opposite directions.
S6 grout is injected to form a continuous underground wall in which aggregates having a fan-shaped cross section and facing in opposite directions are formed continuously in the horizontal direction.
この発明において断面扇形というのは、半径の角度が９
０度以上１８０度未満の２つの半径で囲まれた円の部分
であって、柱状の団結体の水平断面を示すものであり、
前記角度を１２０度程鹿のものとすることが好ましい。In this invention, a fan-shaped cross section means that the angle of the radius is 9
A circular part surrounded by two radii of 0 degrees or more and less than 180 degrees, which shows a horizontal cross section of a columnar body,
Preferably, the angle is about 120 degrees.
以上の通りこの発明によれば、断面扇形の固結体を交互
に反対向きに注入して連続させるので、従来の全周にわ
たる円柱状固結体に比較してそれだけ注入部分が少くな
り、また固結体の重複部分が全（ないかまたは少なく施
工も簡単となり、経済性の向上に有用である。As described above, according to the present invention, solid bodies having a fan-shaped cross section are injected in opposite directions alternately and continuously, so compared to the conventional cylindrical solid bodies that cover the entire circumference, the injection area is reduced accordingly, and There is little or no overlap between the solid bodies, which simplifies construction and is useful for improving economic efficiency.
第１図はこの発明に係るグラウト注入工法によって造成
した連続壁の水平断面図である。
１・・・・・・注入管、Ａ・・・・・・注入管設置位置
、Ｓ・・・・・・固結体。FIG. 1 is a horizontal sectional view of a continuous wall constructed by the grout injection method according to the present invention. 1... Injection pipe, A... Injection pipe installation position, S... Solid body.
Claims (1)
隔に千鳥状に挿入し、周方向に回転しながら交互に反対
方向に向けてグラウト注入をなし、これによって造成さ
れた断面扇形の交互に反対向きの固結体を水平方向に連
続して形成させることを特徴とするグラウト注入工法。1. Insert the injection pipes into the ground in a staggered manner at required intervals along the underground wall to be created, and rotate in the circumferential direction while alternately injecting grout in opposite directions, thereby creating a fan-shaped cross section. A grout injection method characterized by forming solid bodies in alternating and opposite directions in a row in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51067016A JPS5829373B2 (en) | 1976-06-07 | 1976-06-07 | Grout injection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51067016A JPS5829373B2 (en) | 1976-06-07 | 1976-06-07 | Grout injection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52149813A JPS52149813A (en) | 1977-12-13 |
| JPS5829373B2 true JPS5829373B2 (en) | 1983-06-22 |
Family
ID=13332675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51067016A Expired JPS5829373B2 (en) | 1976-06-07 | 1976-06-07 | Grout injection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5829373B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60203726A (en) * | 1984-02-04 | 1985-10-15 | Mitsui Constr Co Ltd | Ground improving device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5637371B2 (en) * | 1973-09-03 | 1981-08-31 |
-
1976
- 1976-06-07 JP JP51067016A patent/JPS5829373B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52149813A (en) | 1977-12-13 |
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