JPH0336585Y2 - - Google Patents
Info
- Publication number
- JPH0336585Y2 JPH0336585Y2 JP1983099571U JP9957183U JPH0336585Y2 JP H0336585 Y2 JPH0336585 Y2 JP H0336585Y2 JP 1983099571 U JP1983099571 U JP 1983099571U JP 9957183 U JP9957183 U JP 9957183U JP H0336585 Y2 JPH0336585 Y2 JP H0336585Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotating shaft
- stirring blade
- auxiliary stirring
- auxiliary
- support shaft
- 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
- 238000003756 stirring Methods 0.000 claims description 36
- 239000002689 soil Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Description
【考案の詳細な説明】
本考案は地盤改良材の混合により軟弱地盤を深
層に亘つて改良する地盤混合処理機における撹拌
装置に関するものである。[Detailed Description of the Invention] The present invention relates to a stirring device in a ground mixing machine that improves soft ground over a deep layer by mixing a ground improvement material.
従来のこの種装置では、地中深く貫入する回転
軸の下端部外周に撹拌翼を突設し、この部分の土
壌に地盤改良材を供給しつつ撹拌翼の回転運動に
より、混合処理を行つているが、この構成では、
回転軸の軌跡部分が未処理状態で残るという問題
点がある。 In conventional devices of this type, stirring blades are installed protruding from the outer periphery of the lower end of a rotating shaft that penetrates deep into the ground, and the soil improvement material is supplied to the soil in this area while mixing treatment is performed by the rotational movement of the stirring blades. However, in this configuration,
There is a problem that the locus portion of the rotation axis remains unprocessed.
その対策として、回転軸の最下端に回転軸の軌
跡部分を撹拌する補助の撹拌翼を設けることが考
えられるが、この撹拌翼で回転軸の軌跡部分を単
に撹拌するだけでは不十分であり、上方の撹拌翼
の回転域に供給された地盤改良材若しくはこれが
混合された土壌を回転軸の軌跡部分に積極的にか
き込みつつ撹拌することが望ましい。 As a countermeasure, it may be possible to provide an auxiliary stirring blade at the bottom end of the rotating shaft to stir the trajectory of the rotating shaft, but simply stirring the trajectory of the rotating shaft with this stirring blade is insufficient. It is desirable to stir the ground improvement material supplied to the rotation area of the upper stirring blade, or the soil mixed with the same, while actively stirring it into the locus of the rotating shaft.
本考案は、前記見地からなされたものであつ
て、その構成上の特徴は、下端部外周に主撹拌翼
を突設した回転軸の最下端に、少くとも下半部を
下方へ突出させて補助撹拌翼を装着し、該補助撹
拌翼は、回転軸の中心軸線を含む仮想平面から垂
直に回転軸の外方へ延び、かつ、その回転方向の
前側面が回転軸の中心軸線より後方にある点であ
る。 The present invention has been developed from the above viewpoint, and its structural feature is that at least the lower half of the rotary shaft protrudes downward from the lowermost end of the rotary shaft, which has main stirring blades protruding from the outer periphery of the lower end. An auxiliary stirring blade is installed, and the auxiliary stirring blade extends perpendicularly to the outside of the rotating shaft from a virtual plane including the central axis of the rotating shaft, and the front surface of the auxiliary stirring blade in the rotation direction is located behind the central axis of the rotating shaft. That's a certain point.
以下、図面に基いて本考案を具体的に説明す
る。 Hereinafter, the present invention will be specifically explained based on the drawings.
本考案の一実施例を示す第１図、第２図におい
て、１は回転軸であり、その下端部外周には上下
２段に主撹拌翼２，３が突設されている。 In FIGS. 1 and 2 showing an embodiment of the present invention, reference numeral 1 denotes a rotating shaft, and two main stirring blades 2 and 3 are protruded from the outer periphery of the lower end thereof in upper and lower stages.
回転軸１の中空部４は地盤改良材（石灰、セメ
ント等）の供給路になつており、地盤改良材は回
転軸１に設けた孔５を通して主撹拌翼２の回転域
に供給され、下段の主撹拌翼３の回転域に対する
地盤改良材の供給も同様である。 The hollow part 4 of the rotating shaft 1 serves as a supply path for soil improvement materials (lime, cement, etc.), and the soil improving material is supplied to the rotation area of the main stirring blade 2 through the hole 5 provided in the rotating shaft 1, and The same applies to the supply of the ground improvement material to the rotation range of the main stirring blade 3.
回転軸１の先端に突設した支持軸６には１対の
互に平行な補助撹拌翼７，８が取付けられている
が、これらは、その一端が支持軸６の両側の周面
にそれぞれ固着され、この固着点９，１０から接
線状に支持軸６の外方へと延びている。 A pair of mutually parallel auxiliary stirring blades 7 and 8 are attached to the supporting shaft 6 protruding from the tip of the rotating shaft 1. The fixing points 9 and 10 extend tangentially to the outside of the support shaft 6.
補助撹拌翼７，８の延長方向は逆であり、ま
た、それらの下半部は支持軸６の底面より下方へ
突出している。 The extension directions of the auxiliary stirring blades 7 and 8 are opposite to each other, and their lower halves protrude downward from the bottom surface of the support shaft 6.
支持軸６が矢印Ａ方向に回転するとき、補助撹
拌翼７，８の前側面１１，１２は支持軸６の中心
軸線より半径分、後方にある。そして、前側面１
１，１２から土壌に作用する力Ｐは、支持軸６の
中心軸線方向の分力P1と支持軸６の周方向の分
力P2とに分解できるが（第３図参照）、分力P1が
土壌を回転軸１の軌跡部分へかき込む作用をす
る。 When the support shaft 6 rotates in the direction of arrow A, the front surfaces 11 and 12 of the auxiliary stirring blades 7 and 8 are located radially behind the central axis of the support shaft 6. And the front side 1
The force P acting on the soil from 1 and 12 can be decomposed into a component force P 1 in the central axis direction of the support shaft 6 and a component force P 2 in the circumferential direction of the support shaft 6 (see Figure 3). P 1 acts to push the soil into the locus of the rotating shaft 1.
前側面１１，１２が支持軸６の中心軸線に近づ
くに従つて分力P1は小となり、前側面１１，１
２が鉛直の場合は、距離が０になると分力P1も
０になる。 As the front surfaces 11, 12 approach the center axis of the support shaft 6, the component force P1 becomes smaller, and the front surfaces 11, 1
If 2 is vertical, when the distance becomes 0, the component force P 1 also becomes 0.
第４図は前側面１１′，１２′が鉛直で、かつ、
支持軸６の周面より内側にある実施例であり、こ
の場合、補助撹拌翼７′，８′は支持軸６の下端面
に取付けられる。 In FIG. 4, the front side surfaces 11' and 12' are vertical, and
In this embodiment, the auxiliary stirring blades 7' and 8' are located inside the circumferential surface of the support shaft 6, and in this case, the auxiliary stirring blades 7' and 8' are attached to the lower end surface of the support shaft 6.
第５図、第６図に示すように、補助撹拌翼７″
の前側面１１″を回転方向の後方へ傾斜させると、
補助撹拌翼７″の前側面１１″の上縁が支持軸６″
の中心軸線と交わる位置にあつても、前側面１
１″の全体が支持軸６″の中心軸線の後方にあり、
全体的にプラスの分力P1が生ずる。そして、補
助撹拌翼の数は前述の２個に限定されないから、
この第５図、第６図のものも本考案の一実施例で
ある。 As shown in Figures 5 and 6, the auxiliary stirring blade 7''
When the front side surface 11'' of is tilted backward in the direction of rotation,
The upper edge of the front side 11" of the auxiliary stirring blade 7" is the support shaft 6"
Even if the position intersects with the central axis of
1" is located behind the central axis of the support shaft 6",
Overall, a positive component force P 1 is generated. Also, since the number of auxiliary stirring blades is not limited to the two mentioned above,
5 and 6 are also examples of the present invention.
本考案装置は、前述のようなものであるから、
地盤の所定深度まで貫入した回転軸を引上げつつ
矢印Ａ方向に回転させて処理を行うと、すでに主
撹拌翼の作用で地盤改良材が混合されている土壌
が、回転軸の最下端の補助撹拌翼の作用で回転軸
の軌跡部分にかき込まれるから、未処理部分が残
らず、地盤全体を均一に混合処理することができ
る。 Since the device of the present invention is as described above,
When processing is carried out by pulling up the rotating shaft that has penetrated the ground to a predetermined depth and rotating it in the direction of arrow A, the soil that has already been mixed with the soil improvement material by the action of the main stirring blade is mixed with the auxiliary stirring at the lowest end of the rotating shaft. Since it is stirred into the locus of the rotating shaft by the action of the blades, no untreated portion remains and the entire ground can be uniformly mixed.
第１図は本考案の一実施例の側断面図、第２図
は第１図のＸ−Ｘ線断面図、第３図は本考案にお
ける補助撹拌翼の作用の説明図、第４図は本考案
の他の実施例における補助撹拌翼の取付け状態を
示す底面図、第５図は本考案のもう１つの実施例
における補助撹拌翼の取付け状態を示す側面図、
第６図は同じく底面図である。
図中、１……回転軸、２，３……主撹拌翼、
７，８，７′，８′，７″……補助撹拌翼、……。
Fig. 1 is a side sectional view of one embodiment of the present invention, Fig. 2 is a sectional view taken along the line X-X of Fig. 1, Fig. 3 is an explanatory diagram of the action of the auxiliary stirring blade in the present invention, and Fig. 4 is A bottom view showing how the auxiliary stirring blades are installed in another embodiment of the present invention, FIG. 5 is a side view showing how the auxiliary stirring blades are installed in another embodiment of the present invention,
FIG. 6 is also a bottom view. In the figure, 1... rotating shaft, 2, 3... main stirring blade,
7, 8, 7', 8', 7''...Auxiliary stirring blade,...
Claims (1)
端に、少くとも下半部を下方へ突出させて補助撹
拌翼を装着し、該補助撹拌翼は、回転軸の中心軸
線を含む仮想平面から垂直に回転軸の外方へ延
び、かつ、その回転方向の前側面が回転軸の中心
軸線より後方にあることを特徴とする地盤混合処
理機における撹拌装置。 An auxiliary stirring blade is attached to the lowermost end of a rotating shaft having a main stirring blade protruding from the outer periphery of the lower end, with at least the lower half protruding downward, and the auxiliary stirring blade is attached to an imaginary axis including the center axis of the rotating shaft. 1. A stirring device for a ground mixing machine, which extends perpendicularly from a plane to the outside of a rotating shaft, and has a front surface in the direction of rotation located behind the central axis of the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9957183U JPS608723U (en) | 1983-06-28 | 1983-06-28 | Stirring device in soil mixing treatment machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9957183U JPS608723U (en) | 1983-06-28 | 1983-06-28 | Stirring device in soil mixing treatment machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS608723U JPS608723U (en) | 1985-01-22 |
| JPH0336585Y2 true JPH0336585Y2 (en) | 1991-08-02 |
Family
ID=30235909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9957183U Granted JPS608723U (en) | 1983-06-28 | 1983-06-28 | Stirring device in soil mixing treatment machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS608723U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6700009B2 (en) * | 2015-09-02 | 2020-05-27 | 旭化成ホームズ株式会社 | Ground improvement device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5435478B2 (en) * | 1973-09-04 | 1979-11-02 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547373Y2 (en) * | 1974-12-02 | 1979-04-06 | ||
| JPS52117308U (en) * | 1976-03-03 | 1977-09-06 | ||
| JPS541902U (en) * | 1977-06-08 | 1979-01-08 | ||
| JPS5435478U (en) * | 1977-08-15 | 1979-03-08 |
-
1983
- 1983-06-28 JP JP9957183U patent/JPS608723U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5435478B2 (en) * | 1973-09-04 | 1979-11-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS608723U (en) | 1985-01-22 |
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