JPS59150817A - Ground treatment work by ground improving agent - Google Patents
Ground treatment work by ground improving agentInfo
- Publication number
- JPS59150817A JPS59150817A JP2249183A JP2249183A JPS59150817A JP S59150817 A JPS59150817 A JP S59150817A JP 2249183 A JP2249183 A JP 2249183A JP 2249183 A JP2249183 A JP 2249183A JP S59150817 A JPS59150817 A JP S59150817A
- Authority
- JP
- Japan
- Prior art keywords
- ground
- improving agent
- pile
- improvement material
- stirring blade
- 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
- E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
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】
本発明は地盤土壌に地盤改良材を混入して地盤を処理す
る技術に関するものである、
従来の地盤改良材による地盤処理工法では、地盤改良材
の供給が攪拌翼の回動範囲に限られているだめ、既成パ
イル（パイルの種類は問わない）に密接して改良区域を
形成することは仲々困難であり、ｌしてや、既成パイル
と改良区域をオーバーラツプさせることは、既成パイル
が既製杭の場合は勿論であるが、これが攪拌混合処理パ
イルの場合でも、それを造成してからイｎ凸時間経過後
（例えば、打継ぎ時）は、パイルの固結が進ギテしてい
るため、不可能である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a technology for treating the ground by mixing a soil improvement material into the ground soil. In the conventional soil treatment method using the soil improvement material, the supply of the soil improvement material is carried out by mixing blades. Due to the limited rotation range, it is difficult to form an improved area in close proximity to existing piles (regardless of the type of pile), and it is difficult to overlap existing piles and improved areas. Of course, if the pre-made pile is a ready-made pile, but even if it is an agitated and mixed pile, the solidification of the pile may progress after the in-convex time has passed (for example, at the time of pouring). It is impossible because
本発明は、既成パイルの種類や打設時期とは無関係に既
成パイルと＠接着しくはオーバーラツプ１−だ状態で改
良区域を形成することが容易に可能な地盤改良材による
地盤処理工法を提供することを目的としておシ、その構
成上の特徴は、既成パイルの外面から離れた位置で１ｗ
拌諷を回動させつつ、その回動範囲に地盤改良材を噴出
又は吐出させるとともに、攪拌翼の先端から外方へも地
盤改良材を噴出又は吐出させて、既成パイルに鱗接する
区域を処理する点にある。The present invention provides a ground treatment method using a soil improvement material that allows easy formation of an improved area in a state of adhesion or overlap with existing piles, regardless of the type of existing piles or the time of installation. The purpose of this is that the structure is characterized by a 1w
While rotating the stirring blade, the soil improvement material is spouted or discharged within its rotating range, and the soil improvement material is also jetted or discharged outward from the tip of the stirring blade to treat the area where the scales come into contact with the existing pile. It is in the point of doing.
以下、図面に基いて本発明を具体的に説明する一本発明
を実施する施工機の攪拌翼部分を例示した第１図におい
て、１は地上の施工機本体（図示しない）Ｋ上下動自在
に懸吊された中空の回転軸、２は回転軸１内に挿設され
た地盤改良材供給管、３け回転軸１と地盤改良材供給管
２との１間の排気通路、４及び４′は回転＠ｌの下端部
に放射状に突設された攪拌翼、５は攪拌翼の底面開放中
空部に開［コする地盤改良材の噴出口、６は用済み空気
の４１１出口、７は地盤改良材供給管２から分岐して攪
拌Ｐ、４′を貝通し、その先端において外向きに開口し
ている管である。Hereinafter, the present invention will be explained in detail based on the drawings.In Fig. 1, which shows an example of the stirring blade part of a construction machine implementing the present invention, 1 is a construction machine main body (not shown) on the ground K that can freely move up and down. A suspended hollow rotating shaft, 2 a ground improvement material supply pipe inserted into the rotating shaft 1, an exhaust passage between the 3-piece rotating shaft 1 and the ground improvement material supply pipe 2, 4 and 4' is a stirring blade protruding radially from the lower end of the rotating @l, 5 is an outlet for ground improvement material that opens in the open hollow part of the bottom of the stirring blade, 6 is a 411 outlet for used air, 7 is a ground This tube branches off from the improvement material supply tube 2, passes the stirring P and 4' through the shell, and opens outward at its tip.
本発明工法は、前述のような施工機の攪拌翼４゜４′を
既成パイル８の外面から離れた位置で回転させつつ、攪
拌翼４．４’の回動範囲に地盤改良材を噴出又は吐出さ
せるとともに、攪拌翼４′の先端から外方へも成る範囲
に亘って地盤改良材を噴出又は吐声させて、既成パイル
８に隣接する区域９を処理するのであって、この作業は
回転軸１の上昇時に連続してなされる、そし７て、第２
図において、円ａは、攪拌ｇ４．４’の回動範囲であっ
て、従来工法の場合と同じ態様で処理される区域であり
、円すの円ａを除く部分が地盤改良材の外方噴出又は吐
出によって処理される区域である。The construction method of the present invention involves rotating the stirring blades 4.4' of the construction machine as described above at a position away from the outer surface of the existing pile 8, and spouting or spouting the ground improvement material within the rotating range of the stirring blades 4.4'. At the same time, the area 9 adjacent to the existing pile 8 is treated by spouting or discharging the ground improvement material over a range extending outward from the tip of the stirring blade 4'. 7 and the second
In the figure, circle a is the rotation range of stirring g4.4', which is the area treated in the same manner as in the conventional method, and the part of the circle excluding circle a is the area outside the ground improvement material. Area treated by jetting or dispensing.
本発明工法では、既成パイルの種類は任意であり、また
その打設若しくは造成から本発明工法を実施するまでの
時間も任意である。さらに、本発明工法は、単一の既成
パイルに隣接する区域を処理する場合は勿論のこと、間
隔をあけて打設若しくは造成されている既成パイルの間
を処理する場合にも適用される。In the construction method of the present invention, the type of prefabricated pile is arbitrary, and the time period from its casting or creation to implementation of the construction method of the present invention is also arbitrary. Furthermore, the construction method of the present invention can be applied not only to treating an area adjacent to a single prefabricated pile, but also to treating areas between prefabricated piles that are cast or constructed at intervals.
図示の施工機は粉粒体状の地盤改良材を用いる場合のも
のであるが、本発明工法で使用する地盤改良材はスラリ
ー状のものであっても構わないし、攪拌翼の内外で地盤
改良材の種類を変えても良い。Although the illustrated construction machine uses a ground improvement material in the form of powder or granules, the ground improvement material used in the method of the present invention may be in the form of a slurry, and the ground improvement material can be used for soil improvement inside and outside of the stirring blade. You can also change the type of material.
そして、図示の施工機において、例えば、管７を攪拌翼
４′ではなくて攪拌翼４に設けたり、これを地盤改良材
供給管から分岐させないで回転軸１内に別に設けた供給
管に連通させたりするようなことも勿論自由である。In the illustrated construction machine, for example, the pipe 7 may be provided on the stirring blade 4 instead of the stirring blade 4', or it may be connected to a supply pipe separately provided within the rotating shaft 1 without branching from the soil improvement material supply pipe. Of course, you are free to do whatever you like.
本発明工法は、前述のようなものであるから、既成パイ
ルの存在を問題とすることなく、これに密接した状態、
若しくはオーバーラツプした状態で容易に地盤改良材に
よる改良域を形成することができて、真に都合が良い。Since the construction method of the present invention is as described above, the existence of existing piles is not a problem, and the construction method is similar to existing piles.
Alternatively, it is possible to easily form an improved area with soil improvement material in an overlapping state, which is truly convenient.
第１図は１本発明実施用施工機の攪拌翼部分を例示した
断面図、第２図は本発明工法による改良・処理域と既成
パイルとの関係を示す断面図である。
図中、１・・・回転軸、２・・・地盤改良材供給管、４
．４′・・・４７拌翼、７・・・管、８・・・既成パイ
ル、９・・・区域。
特許出願人 不動建設株式会社
代理人弁理士 染 谷 廣 同第１図
第２図FIG. 1 is a cross-sectional view illustrating the stirring blade portion of a construction machine for carrying out the present invention, and FIG. 2 is a cross-sectional view showing the relationship between the improvement/treatment area and the existing pile by the method of the present invention. In the figure, 1... Rotating shaft, 2... Ground improvement material supply pipe, 4
．． 4'...47 stirring blade, 7...pipe, 8...prefabricated pile, 9...area. Patent applicant: Fudo Construction Co., Ltd. Patent attorney Hiroshi Someya Figure 1 Figure 2
Claims (1)
つ、その回動範囲に地盤改良材を噴出又は吐出させると
とも□に、攪拌翼の先嬶から外方へも地盤改良材を噴出
又は吐出させて、既成パイルに隣接する区域を処理する
ことを特徴とする地盤改良材による地盤処理工法。While rotating the stirring blade at a position away from the outer surface of the existing pile, the soil improvement material is spouted or discharged within the rotating range, and at the same time, the soil improvement material is also jetted outward from the tip of the stirring blade. A soil treatment method using a soil improvement material, which is characterized by treating an area adjacent to a pre-formed pile by discharging or discharging it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2249183A JPS59150817A (en) | 1983-02-14 | 1983-02-14 | Ground treatment work by ground improving agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2249183A JPS59150817A (en) | 1983-02-14 | 1983-02-14 | Ground treatment work by ground improving agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59150817A true JPS59150817A (en) | 1984-08-29 |
| JPH0360969B2 JPH0360969B2 (en) | 1991-09-18 |
Family
ID=12084196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2249183A Granted JPS59150817A (en) | 1983-02-14 | 1983-02-14 | Ground treatment work by ground improving agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59150817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074049A (en) * | 2001-09-06 | 2003-03-12 | Fudo Constr Co Ltd | Device and method for constructing solidified piles |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51146709A (en) * | 1975-06-11 | 1976-12-16 | Kitagawa Iron Works Co | Agitating impeller |
| JPS5751323A (en) * | 1980-09-09 | 1982-03-26 | N I T:Kk | Method and apparatus for improving soft ground |
| JPS57104714A (en) * | 1980-12-23 | 1982-06-29 | N I T:Kk | Improvement of ground |
-
1983
- 1983-02-14 JP JP2249183A patent/JPS59150817A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51146709A (en) * | 1975-06-11 | 1976-12-16 | Kitagawa Iron Works Co | Agitating impeller |
| JPS5751323A (en) * | 1980-09-09 | 1982-03-26 | N I T:Kk | Method and apparatus for improving soft ground |
| JPS57104714A (en) * | 1980-12-23 | 1982-06-29 | N I T:Kk | Improvement of ground |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074049A (en) * | 2001-09-06 | 2003-03-12 | Fudo Constr Co Ltd | Device and method for constructing solidified piles |
| JP4702821B2 (en) * | 2001-09-06 | 2011-06-15 | 株式会社不動テトラ | Solidification pile construction device and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0360969B2 (en) | 1991-09-18 |
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