JPS6129784Y2 - - Google Patents
Info
- Publication number
- JPS6129784Y2 JPS6129784Y2 JP1977131452U JP13145277U JPS6129784Y2 JP S6129784 Y2 JPS6129784 Y2 JP S6129784Y2 JP 1977131452 U JP1977131452 U JP 1977131452U JP 13145277 U JP13145277 U JP 13145277U JP S6129784 Y2 JPS6129784 Y2 JP S6129784Y2
- Authority
- JP
- Japan
- Prior art keywords
- injection
- injection nozzle
- hardening agent
- rod
- water
- 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
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Description
【考案の詳細な説明】
この考案は地盤硬化剤の注入装置、特に地盤中
に埋設された中空既設くいの先端に根固め用セン
トミルクを注入する装置に関するものである。[Detailed Description of the Invention] This invention relates to a soil hardening agent injection device, and particularly to a device for injecting cent milk for root hardening into the tips of hollow existing piles buried in the ground.
従来地盤硬化剤の注入装置において複数のノズ
ルを備え、２液以上を噴出する場合のノズルの構
造としては、複数のノズルを、同芯的に配置する
構造、横向きと下向きに配置する構造、上下同一
線上に配置する構造等が実施されており、それぞ
れ使用する噴出液、使用場所等に応じて実施され
ている。 Conventional soil hardening agent injection equipment is equipped with multiple nozzles and when ejecting two or more liquids, the nozzle structures include a structure in which the multiple nozzles are arranged concentrically, a structure in which the nozzles are arranged sideways and downwards, and a structure in which the nozzles are arranged horizontally and downwardly. A structure in which they are arranged on the same line has been implemented, and each is implemented depending on the ejected liquid used, the place of use, etc.
ところで根固め、あるいはくい状体をセメント
ミルクの注入によつて実施する場合従来ジエツト
水の噴射ノズルとセントミルクの噴射ノズルを同
芯上に配置し、そのノズルを備えたロツドを回転
する方法が実施されているが、ジエツト水による
地盤の堀削とセメントミルクの注入が同時にある
ところより、広範囲の注入が困難であつたり、セ
メントミルクが流散する恐れがある。 By the way, when hardening the roots or forming a wedge-shaped structure by injecting cement milk, the conventional method is to arrange the jet water injection nozzle and the cent milk injection nozzle concentrically and rotate the rod equipped with the nozzles. However, because the ground is excavated with jet water and the cement milk is injected at the same time, it is difficult to inject over a wide area, and there is a risk that the cement milk will flow away.
この考案は前記問題点を解消すべく工夫したも
ので以下図示した実施例によつて説明する。 This invention was devised to solve the above-mentioned problems, and will be explained below with reference to the illustrated embodiments.
注入ロツド１の先端に、そのロツド１の中心軸
に対し、直角または略直角にジエツト水噴射ノズ
ル２とその取付管３および地盤硬化剤のセメント
ミルク噴射ノズル４とその取付管５が異なる高さ
に突設して配置してあり、かつそのジエツト水噴
射ノズル２とセメントミルク噴射ノズル４は反対
方向に向けて開口している。またジエツト水噴射
ノズル２はロツド１内に配した通水給送管６に連
らなり、セメントミルクはロツド１内の給送管６
との間を通つて送られる二重管構造をなしてい
る。取付管３，５に対してノズル２，４は着脱自
在に螺合し、噴射条件に応じて適宜取換えること
ができる。そしてノズル孔径は2.5〜3.5mm、また
ジエツト水の噴射圧は100〜200Kg／cm2、セメント
ミルクの噴射圧は150〜250Kg／cm2である。 At the tip of the injection rod 1, a jet water injection nozzle 2 and its mounting pipe 3, and a cement milk injection nozzle 4 of the soil hardening agent and its mounting pipe 5 are installed at different heights at right angles or approximately at right angles to the central axis of the rod 1. The jet water injection nozzle 2 and the cement milk injection nozzle 4 are arranged in a protruding manner and open in opposite directions. The jet water injection nozzle 2 is connected to the water supply pipe 6 arranged inside the rod 1, and the cement milk is connected to the water supply pipe 6 arranged inside the rod 1.
It has a double-tube structure that is sent between the two. The nozzles 2 and 4 are removably screwed into the attachment pipes 3 and 5, and can be replaced as appropriate depending on the injection conditions. The nozzle hole diameter is 2.5 to 3.5 mm, the injection pressure of jet water is 100 to 200 kg/cm 2 , and the injection pressure of cement milk is 150 to 250 kg/cm 2 .
この注入装置の使用に際してはロツド１を回転
し、ジエツト水噴射ノズル２から高圧水を噴射す
ることによつて地盤を予備堀削し、次いでセメン
トミルク噴射ノズル４からその堀削によつて粉砕
された地盤中にセメントミルクを注入する。そし
てロツド１は回転しながら徐々に引上げ、セメン
トミルクは土砂と混合して地中に硬化物体を形成
する。この注入装置によると注入ロツドが引上げ
られるとき上方に位置する水噴射ノズルにより地
盤の土砂が充分に粉砕され、硬化剤噴射ノズルが
下方に位置し反対方向に向け開口しているところ
から、地盤硬化剤は水の噴射より少し遅れ、しか
も土砂中の中の水切れも充分で、かつ土砂隙間も
塞がれない時間に土砂中に噴射注入されるから、
硬化剤の注入を効果的に行なうことができる。 When using this injection device, the rod 1 is rotated and the ground is preliminary excavated by injecting high-pressure water from the jet water injection nozzle 2, and then the ground is pulverized by the excavation from the cement milk injection nozzle 4. Pour cement milk into the ground. Then, the rod 1 is gradually pulled up while rotating, and the cement milk mixes with earth and sand to form a hardened object underground. According to this injection device, when the injection rod is pulled up, the soil on the ground is sufficiently crushed by the water injection nozzle located above, and the hardening agent injection nozzle is located below and opens in the opposite direction, which hardens the ground. The agent is injected into the earth and sand a little later than the water injection, and at a time when the water in the earth and sand has drained sufficiently and the gaps between the earth and sand are not blocked.
The curing agent can be injected effectively.
第１図はこの考案の実施例を示した縦断面図で
ある。
１……注入ロツド、２……ジエツト水噴射ノズ
ル、３……取付管、４……セメントミルク噴射ノ
ズル、５……取付管、６……通水給送管。
FIG. 1 is a longitudinal sectional view showing an embodiment of this invention. 1...Injection rod, 2...Jet water injection nozzle, 3...Mounting pipe, 4...Cement milk injection nozzle, 5...Mounting pipe, 6...Water supply pipe.
Claims (1)
設け、各給送管にはそれぞれ注入ロツドの中心軸
に対し略直角に、かつ噴射ノズルが互いに反対方
向に開口するように噴射ノズルを接続すると共
に、地盤硬化剤の噴射ノズルを注入ロツド先端部
の下端に、水噴射ノズルをそれより上方に間隔を
おいて配してあることを特徴とする地盤硬化剤の
注入装置。 Supply pipes for soil hardening agent and water are installed inside the injection rod, and injection nozzles are connected to each feed pipe so that they are approximately perpendicular to the central axis of the injection rod and open in opposite directions. A soil hardening agent injection device characterized in that the soil hardening agent injection nozzle is arranged at the lower end of the injection rod tip, and the water injection nozzle is arranged at a distance above the lower end of the injection rod tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977131452U JPS6129784Y2 (en) | 1977-09-30 | 1977-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977131452U JPS6129784Y2 (en) | 1977-09-30 | 1977-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5457706U JPS5457706U (en) | 1979-04-21 |
| JPS6129784Y2 true JPS6129784Y2 (en) | 1986-09-02 |
Family
ID=29098040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977131452U Expired JPS6129784Y2 (en) | 1977-09-30 | 1977-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6129784Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5945049B2 (en) * | 1980-09-10 | 1984-11-02 | 株式会社 エヌ・アイ・テイ | Ground improvement method using high pressure double injection |
| JPS5948248B2 (en) * | 1983-01-25 | 1984-11-26 | 株式会社 エヌ、アイ、テイ | Ground improvement device using high pressure double injection |
| JP5608449B2 (en) * | 2010-07-12 | 2014-10-15 | 裕治 金子 | Monitor mechanism used for ground improvement method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4947444Y2 (en) * | 1971-04-19 | 1974-12-26 |
-
1977
- 1977-09-30 JP JP1977131452U patent/JPS6129784Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5457706U (en) | 1979-04-21 |
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