JPS5948249B2 - Ground improvement equipment - Google Patents
Ground improvement equipmentInfo
- Publication number
- JPS5948249B2 JPS5948249B2 JP11086883A JP11086883A JPS5948249B2 JP S5948249 B2 JPS5948249 B2 JP S5948249B2 JP 11086883 A JP11086883 A JP 11086883A JP 11086883 A JP11086883 A JP 11086883A JP S5948249 B2 JPS5948249 B2 JP S5948249B2
- Authority
- JP
- Japan
- Prior art keywords
- ground improvement
- stirring blade
- tip
- nozzle
- injection pipe
- 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
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)
Description
【発明の詳細な説明】
本発明は地盤硬化剤等を地盤中に注入して地盤改良を行
なう地盤改良装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a soil improvement device that improves the ground by injecting a soil hardening agent or the like into the ground.
従来、注入管側壁に設けたノズルから地盤に硬化剤を高
圧力で高速噴射し、この硬化剤を噴流もしくは別個に設
けた攪拌翼によって混合攪拌して地盤を改良する工法が
行なわれてきたが、この方法では硬化剤噴流の到達距離
に限界があり、注入管周囲の小範囲の改良しか行なうこ
とができなかった。Conventionally, a method has been used to improve the ground by injecting hardening agent into the ground at high pressure and high speed from a nozzle installed on the side wall of the injection pipe, and then mixing and stirring this hardening agent with a jet or a separately installed stirring blade. However, with this method, there was a limit to the reach of the curing agent jet, and it was only possible to improve a small area around the injection tube.
また、瞬結性硬化剤はＡ液とＢ液を各別に注入管先端ま
で圧送して噴出直前に合流混合するため、混合室を設け
る等無駄なスペースと複雑な構造が必要であった。In addition, in the case of the instant curing agent, liquid A and liquid B are separately pumped to the tip of the injection tube and mixed together immediately before ejection, which requires wasted space and a complicated structure such as the provision of a mixing chamber.
本発明は二つの流路を包合ノズルとして先端で開口させ
た攪拌羽根として構成することにより、張出位置からの
硬化剤噴射、中核硬化剤噴流を包む包囲ノズルからのエ
アー噴射を可能として注入範囲を大きく拡張できる一方
、中核ノズルからＡ液、包囲ノズルからＢ液を噴射し、
包合合流によってＡ、 Ｂ両液の混合噴流が合成できる
ほか、硬化剤の単位吐出量を増大できる等、多目的で応
用範囲の広い地盤改良装置の提供を目的としたものであ
る。In the present invention, by configuring the two flow channels as an enclosing nozzle and a stirring blade with an opening at the tip, it is possible to inject the curing agent from the extended position and to inject air from the surrounding nozzle that surrounds the core curing agent jet. While the range can be greatly expanded, liquid A is injected from the core nozzle and liquid B is injected from the surrounding nozzle.
The aim is to provide a multi-purpose ground improvement device that has a wide range of applications, such as being able to synthesize a mixed jet of both liquids A and B by merging and increasing the unit discharge amount of curing agent.
以下図面に基いて本発明の一実施例を説明する。An embodiment of the present invention will be described below based on the drawings.
１は外管２と、この外管２内に複数の内管３ａ、３ｂ、
３Ｃを並列して設けた注入管で、その先端ヘッド４には
上下に間隔をおいて複数の攪拌羽根５，６が横方向に張
出して設けである。1 includes an outer tube 2 and a plurality of inner tubes 3a, 3b within this outer tube 2.
It is an injection pipe in which 3C are arranged in parallel, and a plurality of stirring blades 5 and 6 are provided on the tip head 4 of the injection pipe, spaced apart from each other in the vertical direction and extending laterally.
攪拌羽根５，６にはそれぞれ中核ノズル７と、この外側
にノズル７を包囲する包囲ノズル８が設けられ、その各
流路１４，１５はヘッド４に設けた通路９，１０に連絡
している。Each of the stirring blades 5 and 6 is provided with a core nozzle 7 and an surrounding nozzle 8 that surrounds the nozzle 7 on the outside thereof, and each of the flow passages 14 and 15 thereof communicates with passages 9 and 10 provided in the head 4. .
ヘッド４に設けた前記通路９，１０は内管３ａ、３ｂ及
び外管と内管３Ｃに連絡する。The passages 9, 10 provided in the head 4 communicate with the inner tubes 3a, 3b and the outer tube and inner tube 3C.
注入管１の上端にはスイベル装置１１が設けられ、外管
と各内管の上端を材料供給槽に連絡するホース１２ａ、
１２ｂ・・・・・・に回動自在に連絡されている。A swivel device 11 is provided at the upper end of the injection pipe 1, and a hose 12a connects the upper ends of the outer pipe and each inner pipe to the material supply tank;
12b... is rotatably connected.
１３は駆動機構で注入管１に回転及び上下動の動作を与
えるものである。Reference numeral 13 denotes a drive mechanism that provides rotation and vertical movement to the injection tube 1.
本発明は以上のように構成したので、流路１４に硬化剤
、１５にエアーを供給すれば、注入管張出位置からエア
ーに包囲された硬化剤噴流を噴射でき、流路１４にＡ液
、流路１５にＢ液を供給すれば瞬結性二液を噴射口まで
隔絶して導き、噴射と同時に包合噴流となり、完全な混
合液流として地盤中に噴射注入することができる。Since the present invention is constructed as described above, by supplying the curing agent to the channel 14 and the air to the channel 15, a jet of the curing agent surrounded by air can be injected from the injection tube projecting position, and the A liquid is supplied to the channel 14. When the B liquid is supplied to the flow path 15, the instant setting two liquids are led to the injection port in a separated manner, and at the same time they are injected, they become an enveloping jet, and can be injected into the ground as a complete mixed liquid flow.
更に本発明は複数の内管を並列して設け、攪拌羽根ノズ
ルに直結させているので、短時間に多量の硬化材を地盤
注入することができるので、超軟弱地盤や、通常の注入
では止水困難な地下出水にも対処することができる。Furthermore, since the present invention has a plurality of inner pipes arranged in parallel and is directly connected to the stirring blade nozzle, it is possible to inject a large amount of hardening material into the ground in a short time. It can also deal with difficult underground water leaks.
なお、攪拌羽根を複数設けない場合には、内管を並列さ
せることなく、単純な二重管としても良いことは勿論で
ある。In addition, when a plurality of stirring blades are not provided, it goes without saying that a simple double pipe may be used without arranging the inner pipes in parallel.
以上のよう”に本発明は応用範囲が広く多くの目的に使
用することができる。As described above, the present invention has a wide range of applications and can be used for many purposes.
図は本発明の一実施例を示すもので、第１図は注入管の
正面図、第２図はヘッドの拡大断面図、第３図はスイベ
ル装置の拡大断面図である。
１・・・・・・注入管、２・・・・・・外管、３・・・
・・・内管、４・・・・・・ヘッド、５，６・・・・・
・攪拌羽根、７・・・・・・中核ノズル、８・・・・・
・包囲ノズル、９，１０・・・・・・通路、１１・・・
・・・スイベル装置、１２・・・・・・ホース、１３・
・・・・・駆動装置、１４，１５・・・・・・攪拌羽根
の流路。The drawings show one embodiment of the present invention; FIG. 1 is a front view of an injection tube, FIG. 2 is an enlarged sectional view of the head, and FIG. 3 is an enlarged sectional view of the swivel device. 1...Injection tube, 2...Outer tube, 3...
...Inner tube, 4...Head, 5, 6...
- Stirring blade, 7... Core nozzle, 8...
・Encircling nozzle, 9, 10...Passage, 11...
... Swivel device, 12 ... Hose, 13.
... Drive device, 14, 15 ... Stirring blade flow path.
Claims (1)
囲ノズルに各連通する二つの流路を備えた攪拌羽根を、
上部はスイベルを介して材料供給部に連絡し回転上下動
機構を備えた注入管の先端部に、張出して設けたことを
特徴とする地盤改良装置。 ２、特許請求の範囲１記載の地盤改良装置において、注
入管は外管の内部に攪拌羽根の流路に材料を供給する複
数の内管を並列して設けて注入管先端部に張出する攪拌
羽根を複数設けたこと。[Scope of Claims] 1. A stirring blade equipped with two channels each communicating with a core nozzle opening at the tip of the stirring blade and a surrounding nozzle surrounding the core nozzle,
A ground improvement device characterized in that the upper part is connected to a material supply section via a swivel and is provided in an overhanging manner at the tip of an injection pipe equipped with a rotating vertical movement mechanism. 2. In the ground improvement device according to claim 1, the injection pipe has a plurality of inner pipes arranged in parallel inside the outer pipe for supplying material to the flow path of the stirring blade, and extends from the tip of the injection pipe. Multiple stirring blades are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11086883A JPS5948249B2 (en) | 1983-06-22 | 1983-06-22 | Ground improvement equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11086883A JPS5948249B2 (en) | 1983-06-22 | 1983-06-22 | Ground improvement equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55181281A Division JPS594006B2 (en) | 1980-12-23 | 1980-12-23 | Ground improvement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5910611A JPS5910611A (en) | 1984-01-20 |
| JPS5948249B2 true JPS5948249B2 (en) | 1984-11-26 |
Family
ID=14546719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11086883A Expired JPS5948249B2 (en) | 1983-06-22 | 1983-06-22 | Ground improvement equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5948249B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107572562A (en) * | 2017-10-27 | 2018-01-12 | 四川省洪雅青衣江元明粉有限公司 | A kind of glauber salt prepares the device and method of soda ash and ammonium sulfate |
-
1983
- 1983-06-22 JP JP11086883A patent/JPS5948249B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5910611A (en) | 1984-01-20 |
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