JPH10227028A - Ground excavation and agitation device - Google Patents
Ground excavation and agitation deviceInfo
- Publication number
- JPH10227028A JPH10227028A JP4462497A JP4462497A JPH10227028A JP H10227028 A JPH10227028 A JP H10227028A JP 4462497 A JP4462497 A JP 4462497A JP 4462497 A JP4462497 A JP 4462497A JP H10227028 A JPH10227028 A JP H10227028A
- Authority
- JP
- Japan
- Prior art keywords
- excavation
- excavating
- stirring
- support member
- agitation
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、地盤の掘削撹拌
装置に関し、さらに詳細には、例えば軟弱地盤の改良工
法を実施するのに使用される掘削撹拌装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excavating and stirring apparatus for ground, and more particularly, to an excavating and stirring apparatus used for implementing a method for improving soft ground.
【０００２】[0002]
【従来の技術】軟弱地盤の改良工法は、改良深さにより
浅層地盤改良工法と深層地盤改良工法に大別されるが、
前者の浅層地盤改良工法の１つとして化学的改良工法
（表層固化工法）が知られている。この工法は表層地盤
を掘削しながら地盤中にセメントや石灰等の固化材を添
加し、撹拌混合することにより地盤を化学的に固化する
工法であり、地盤の掘削撹拌は建設機械の作業装置のア
ーム先端に装着した掘削撹拌装置により行われれてい
る。2. Description of the Related Art Soft ground improvement methods are broadly classified into shallow ground improvement methods and deep ground improvement methods according to the improvement depth.
As one of the former shallow ground improvement methods, a chemical improvement method (surface solidification method) is known. In this method, a solidifying material such as cement or lime is added to the ground while excavating the surface ground, and the ground is chemically solidified by stirring and mixing. This is performed by a drilling and stirring device attached to the tip of the arm.
【０００３】掘削撹拌装置は、従来種々のものが開発さ
れ、例えば図６又は図７に示すものが知られている。ま
ず、図６に示す装置について概略説明すると、建設機械
のアームに取付けるための取付プレート５５が設けられ
た接続管５４の先端に支持ケーシング５２が設けられ、
この支持ケーシング５２に翼５６を有する掘削撹拌軸５
３が回転自在に支持されている。掘削撹拌軸５３は接続
管５４内を延びる駆動軸あるいはチェーン・スプロケッ
トを介して駆動モータ５７に連結され、その駆動により
回転し、地盤を掘削撹拌する。また、図７に示す装置に
おいては、掘削撹拌軸５３は支持フレーム６２に回転自
在に支持されている。掘削撹拌軸５３は駆動モータ５７
の駆動によりチェーン・スプロケット５８を介して回転
する。Conventionally, various types of excavating and stirring devices have been developed, and for example, those shown in FIG. 6 or FIG. 7 are known. First, the device shown in FIG. 6 will be briefly described. A support casing 52 is provided at the tip of a connection pipe 54 provided with a mounting plate 55 for mounting to an arm of a construction machine.
The drilling and stirring shaft 5 having the wings 56 in the support casing 52
3 is rotatably supported. The excavating and stirring shaft 53 is connected to a driving motor 57 via a driving shaft or a chain sprocket extending in the connecting pipe 54, and is rotated by its drive to excavate and agitate the ground. In the apparatus shown in FIG. 7, the excavating and stirring shaft 53 is rotatably supported by the support frame 62. The excavating and stirring shaft 53 has a drive motor 57.
Rotates through the chain sprocket 58.
【０００４】しかしながら、上記従来の装置は、いずれ
も掘削撹拌軸５３が支持ケーシング５２あるいは支持フ
レーム６２に水平となるように、すなわち掘削面に対し
て平行となるように取付けられているため、図６、図７
に範囲Ｒ1，Ｒ2，Ｒ3で示すように支持ケーシング５２
あるいは支持フレーム６２の下方に非掘削部が生じ、非
改良部が発生する。このため、装置の全巾すなわち範囲
Ｒ0でのピッチ施工ができない。その結果、再掘削、再
改良を行わなければならず、施工時間のロスが生じ、施
工費が割高となる。また、非掘削部があると、装置に対
する掘り下げ（押し込み）抵抗が大きくなり、無理な押
し込みを行うと装置の損傷を招くことになる。However, all of the above-mentioned conventional apparatuses are mounted so that the excavating and stirring shaft 53 is horizontal to the support casing 52 or the support frame 62, that is, parallel to the excavation surface. 6, FIG.
As indicated by ranges R 1 , R 2 , R 3.
Alternatively, a non-excavated portion occurs below the support frame 62, and a non-improved portion occurs. For this reason, pitch construction cannot be performed in the entire width of the apparatus, that is, in the range R0 . As a result, re-excavation and re-improvement must be performed, resulting in a loss of construction time and a high construction cost. In addition, if there is a non-digging portion, the digging (pushing) resistance to the device increases, and if the forcible pushing is performed, the device is damaged.
【０００５】[0005]
【発明が解決しようとする課題】この発明は上記のよう
な技術的背景に基づいてなされたものであって、次の目
的を達成するものである。SUMMARY OF THE INVENTION The present invention has been made on the basis of the above technical background, and has the following objects.
【０００６】この発明の目的は、掘削撹拌時に非掘削部
が生じることをなくし、また押し込み抵抗を低減して効
率良く施工できる掘削撹拌装置を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a drilling / stirring apparatus which eliminates the occurrence of a non-digging portion during drilling / stirring, reduces the pushing resistance, and can be constructed efficiently.
【０００７】[0007]
【課題を解決するための手段】この発明は上記課題を達
成するために、次のような手段を採用している。The present invention employs the following means to achieve the above object.
【０００８】すなわちこの発明は、支持部材と、この支
持部材に回転自在に支持された掘削撹拌軸とを備えた掘
削撹拌装置において、前記掘削撹拌軸は、その軸線が掘
削面に対して角度をなすように前記支持部材に取付けら
れていることを特徴とする地盤の掘削撹拌装置にある。That is, the present invention provides a digging / stirring apparatus provided with a supporting member and a digging / stirring shaft rotatably supported by the supporting member, wherein the digging / stirring shaft has an angle with respect to the digging surface. An excavating and stirring apparatus for ground is characterized in that the excavating and stirring apparatus is mounted on the support member.
【０００９】またこの発明は、前記支持部材が全体とし
て略テーパ状に形成されていることを特徴とする地盤の
掘削撹拌装置にある。[0009] The present invention also resides in an excavating and stirring apparatus for ground, wherein the support member is formed in a substantially tapered shape as a whole.
【００１０】さらにこの発明は、前記掘削撹拌軸が前記
支持部材の外周に１８０度の角度間隔を置いて一対設け
られていることを特徴とする地盤の掘削撹拌装置にあ
る。Further, the present invention is the ground excavation and stirring device, wherein a pair of the excavation and stirring shafts are provided on the outer periphery of the support member at an angular interval of 180 degrees.
【００１１】前記掘削撹拌軸を駆動するための駆動機構
が、前記支持部材内で駆動軸に固定された駆動ベベルギ
ヤと、この駆動ベベルギヤと噛み合う従動ベベルギヤと
を含み、前記従動ベベルギヤに前記掘削撹拌軸が取付け
られていることを特徴とする地盤の掘削撹拌装置にあ
る。A drive mechanism for driving the excavating and stirring shaft includes a driving bevel gear fixed to the driving shaft in the support member, and a driven bevel gear meshing with the driving bevel gear. Is attached to the ground excavation and stirring device.
【００１２】さらにこの発明は、前記掘削撹拌軸が中空
ロータからなり、この中空ロータを駆動するための駆動
機構が、該ロータに内蔵された状態で前記支持部材に固
定された駆動モータを含むことを特徴とする地盤の掘削
撹拌装置にある。Further, according to the present invention, the excavating and stirring shaft comprises a hollow rotor, and a drive mechanism for driving the hollow rotor includes a drive motor fixed to the support member while being built in the rotor. And a ground excavation and stirring device.
【００１３】この発明によれば、掘削撹拌軸は、その軸
線が掘削面に対して角度をなすように支持部材に取付け
られている。このため、翼を支持部材の下方まで延伸さ
せることが可能となり、非掘削部が生じない。したがっ
て、再掘削、再改良は不要であり、また装置の押し込み
抵抗も小さくなる。According to the present invention, the excavating and stirring shaft is attached to the support member such that its axis is at an angle to the excavation surface. For this reason, it is possible to extend the wing to below the support member, and a non-digging portion does not occur. Therefore, re-excavation and re-improvement are unnecessary, and the pushing resistance of the device is reduced.
【００１４】[0014]
【発明の実施の形態】この発明の実施の形態を図面を用
いて以下に説明する。図１はこの発明の実施の形態を示
す正面図である。掘削撹拌装置１は支持部材２と、この
支持部材２に回転自在に支持された一対の掘削撹拌軸
３、３を備えている。この場合、掘削撹拌軸３、３は１
８０度の角度間隔を置いて配置される。支持部材２の上
部にはパイプ等からなる接続部材４が固定され、この接
続部材４の上端には建設機械の作業装置のアームに取付
けるための取付プレート５、５が設けられている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing an embodiment of the present invention. The digging / stirring apparatus 1 includes a support member 2 and a pair of digging / stirring shafts 3, 3 rotatably supported by the support member 2. In this case, the excavating and stirring shafts 3, 3 are 1
They are arranged at an angular interval of 80 degrees. A connecting member 4 made of a pipe or the like is fixed to an upper portion of the supporting member 2, and mounting plates 5 and 5 for mounting to an arm of a working device of the construction machine are provided at an upper end of the connecting member 4.
【００１５】この発明によれば、掘削撹拌軸３、３は、
その軸線Ｃ1、Ｃ1が掘削面Ｓに対して角度θをなすよう
に支持部材２に取付けられている。この角度θは９０度
に満たない鋭角である。図１に示す実施の形態では、支
持部材２はその中心線Ｃ0が鉛直方向を向くように建設
機械に取付けられ、したがって、この場合掘削撹拌軸
３、３は支持部材２の中心線Ｃ0に対しても０度よりも
大きく９０度よりも小さい角度となっている。言い換え
れば、この実施の形態では、掘削撹拌軸３、３の軸線Ｃ
1、Ｃ1は支持部材２の下端２ａ側に傾斜している。これ
により、掘削撹拌軸３、３に取付けられる複数の翼６の
うち、支持部材２側の翼６を支持部材２の下方まで延伸
させることが可能となる。According to the present invention, the excavating and stirring shafts 3, 3
The axes C 1 and C 1 are attached to the support member 2 so that the axes C 1 and C 1 form an angle θ with the excavation surface S. Is an acute angle less than 90 degrees. In the embodiment shown in FIG. 1, the support member 2 is mounted on the construction machine such that its center line C 0 is oriented vertically, so that in this case the excavation and stirring shafts 3, 3 are connected to the center line C 0 of the support member 2. Is larger than 0 degree and smaller than 90 degrees. In other words, in this embodiment, the axis C of the excavating and stirring shafts 3, 3
1 and C 1 are inclined toward the lower end 2 a of the support member 2. Thereby, among the plurality of blades 6 attached to the excavating and stirring shafts 3, the blade 6 on the support member 2 side can be extended below the support member 2.
【００１６】図２は掘削撹拌軸３、３の駆動機構の実施
の形態を示す断面図である。支持部材２は全体として略
テーパ状に形成された中空のケーシングからなってい
る。この支持ケーシング２の内部には駆動ベベルギヤ７
と、これに噛み合う従動ベベルギヤ８、８とが収容され
ている。駆動ベベルギヤ７は接続管４内を延びる駆動軸
９に取付けられている。FIG. 2 is a sectional view showing an embodiment of the drive mechanism of the excavating and stirring shafts 3, 3. As shown in FIG. The support member 2 is formed of a hollow casing formed in a substantially tapered shape as a whole. A drive bevel gear 7 is provided inside the support casing 2.
And driven bevel gears 8 and 8 meshing with the gears are accommodated. The drive bevel gear 7 is attached to a drive shaft 9 extending inside the connection pipe 4.
【００１７】掘削撹拌軸３、３はこの実施の形態では、
軸本体３ａと、その外周に嵌合固定された中空ロータ１
１とからなり、翼６は中空ロータ１１に取付けられてい
る。軸本体３ａは支持ケーシング２に軸受１０を介して
支持され、この軸本体３ａに従動ベベルギヤ８が取付け
られている。In this embodiment, the excavating and stirring shafts 3, 3 are:
Shaft main body 3a and hollow rotor 1 fitted and fixed to the outer periphery thereof
The blade 6 is attached to the hollow rotor 11. The shaft main body 3a is supported by the support casing 2 via a bearing 10, and a driven bevel gear 8 is attached to the shaft main body 3a.
【００１８】この実施の形態の場合、翼６を軸本体３ａ
に直接取り付けることが可能であり、したがって中空ロ
ータ１１は必ずしも設けなくともよい。しかしながら、
このような中空ロータ１１を設け、その開放端部１１ａ
が軸受１０を覆うようにすることにより、軸受１０に阻
害されることなく翼６を簡単に支持ケーシング２の下方
まで延伸させることができる。In the case of this embodiment, the blade 6 is connected to the shaft body 3a.
The hollow rotor 11 may not necessarily be provided. However,
Such a hollow rotor 11 is provided and its open end 11a
By covering the bearing 10, the blade 6 can be easily extended below the support casing 2 without being hindered by the bearing 10.
【００１９】駆動軸９は接続管４の上部に設置された駆
動モータ１２に連結され（図１参照）、この駆動モータ
１２の駆動により駆動軸９、ベベルギヤ７、８が回転
し、掘削撹拌軸３、３が回転する。The drive shaft 9 is connected to a drive motor 12 provided above the connecting pipe 4 (see FIG. 1). The drive shaft 12 and the bevel gears 7 and 8 rotate by the drive of the drive motor 12, and the excavation and stirring shaft is rotated. 3, 3 rotate.
【００２０】図３は掘削撹拌軸３、３の駆動機構の別の
実施の形態を示す断面図である。この実施の形態では、
図２に示したと同様の中空ロータ１１それ自体が掘削撹
拌軸を構成している。中空ロータ１１の内部には駆動モ
ータである油圧モータ１３が内蔵され、この油圧モータ
１３は支持ケーシング２に形成した開口１４の周縁にボ
ルト１８により固定されている。駆動モータとしては、
油圧モータ以外にも、空気圧モータや電動モータを用い
ることもできる。油圧モータ１３へ圧油を供給するため
の配管１５は接続管４内を延び油圧源に接続されてい
る。FIG. 3 is a sectional view showing another embodiment of the drive mechanism of the excavating and stirring shafts 3, 3. As shown in FIG. In this embodiment,
The hollow rotor 11 itself similar to that shown in FIG. 2 constitutes the excavating and stirring shaft. A hydraulic motor 13 as a drive motor is built in the hollow rotor 11, and the hydraulic motor 13 is fixed to a peripheral edge of an opening 14 formed in the support casing 2 by a bolt 18. As the drive motor,
In addition to the hydraulic motor, a pneumatic motor or an electric motor can be used. A pipe 15 for supplying pressure oil to the hydraulic motor 13 extends in the connection pipe 4 and is connected to a hydraulic source.
【００２１】油圧モータ１３の外周にはドラム１６が回
転自在に嵌合され、このドラム１６に油圧モータ１３の
出力軸（図示せず）が固定されている。ドラム１６はフ
ランジ１７を有し、このフランジ１７は中空ロータ１１
の段部１９にボルト２０により固定されている。したが
って、油圧モータ１３の駆動によりドラム１６が回転
し、中空ロータ１１すなわち掘削撹拌軸が回転する。A drum 16 is rotatably fitted to the outer periphery of the hydraulic motor 13, and an output shaft (not shown) of the hydraulic motor 13 is fixed to the drum 16. The drum 16 has a flange 17, which is
Is fixed to the step portion 19 by a bolt 20. Therefore, the drum 16 is rotated by the drive of the hydraulic motor 13, and the hollow rotor 11, that is, the excavation stirring shaft is rotated.
【００２２】この実施の形態の場合、接続管４には図２
に示したような駆動軸９等の駆動伝達部材が収容されな
いので、加工精度がそれほど要求されない。したがっ
て、接続管４の長さを掘削深度に合わせて容易に設定
し、選択することができる。また、軽量化を図ることが
でき、さらに構成部品が少ないのでメンテナンスが容易
である。In the case of this embodiment, the connecting pipe 4 has a structure shown in FIG.
Since the drive transmission member such as the drive shaft 9 as shown in (1) is not accommodated, processing accuracy is not so required. Therefore, the length of the connecting pipe 4 can be easily set and selected according to the excavation depth. Further, the weight can be reduced, and the number of components is small, so that maintenance is easy.
【００２３】次に上記掘削撹拌装置を使用した地盤改良
工法（表層固化工法）について、図４を参照しながら説
明する。掘削撹拌装置１は接続管４に接続され、この接
続管４は油圧ショベル等の建設機械３０における作業装
置のアーム３１先端に、取付プレート５を介して装着さ
れる。Next, a ground improvement method (surface layer consolidation method) using the above-described excavating and stirring apparatus will be described with reference to FIG. The excavating and stirring device 1 is connected to a connecting pipe 4, and the connecting pipe 4 is mounted via a mounting plate 5 to a tip of an arm 31 of a working device in a construction machine 30 such as a hydraulic shovel.
【００２４】そして、アーム３１を鉛直方向に動かしつ
つ、掘削撹拌軸３、３を回転させることにより、地盤の
表層を掘削撹拌する。この掘削撹拌動作により、地盤に
添加されたセメント、セメントミルク、石灰等の固化材
は土壌と撹拌・混合され、固化して改良地盤が形成され
る。このような掘削撹拌動作の際、掘削撹拌軸３、３に
取付けた翼６は支持部材３の下方まで延びているので、
非掘削部が生じることがない。このため、範囲Ｒ0での
ピッチ施工が可能となり（図１参照）、再掘削、再改良
が不要となって、施工効率が大幅に高まる。また、押し
込み抵抗も低減し、装置の損傷等のおそれも回避でき
る。Then, while the arm 31 is moved in the vertical direction, the excavation and stirring shafts 3 are rotated to excavate and agitate the surface layer of the ground. By this excavation and stirring operation, the solidified material such as cement, cement milk, and lime added to the ground is stirred and mixed with the soil and solidified to form an improved ground. In such an excavating and stirring operation, the wings 6 attached to the excavating and stirring shafts 3 extend to below the support member 3.
No non-excavated parts are generated. For this reason, pitch construction in the range R 0 becomes possible (see FIG. 1), and re-digging and re-improvement are not required, and construction efficiency is greatly increased. In addition, the pushing resistance is reduced, and the possibility of damage to the device can be avoided.
【００２５】上記実施の形態は例示にすぎず、この発明
は以下に記すような種々の改変が可能である。The above embodiment is merely an example, and the present invention can be modified in various ways as described below.
【００２６】（１）接続部材４の形態によっては、支持
部材２はその中心線Ｃ0が鉛直方向に対して角度をなす
ように建設機械に取付けられることもあり、この場合、
掘削撹拌軸３の軸線Ｃ1と支持部材２の中心線Ｃ0とのな
す角度が９０度となることもあり得る。要は、この発明
にしたがい、掘削撹拌軸の軸線が掘削面に対して角度を
なすようにすればよい。[0026] (1) depending on the form of the connecting member 4, the support member 2 is also that the center line C 0 is attached to the construction machine at an angle relative to the vertical direction, in this case,
The angle between the axis C 1 of the excavating and stirring shaft 3 and the center line C 0 of the support member 2 may be 90 degrees. In short, according to the present invention, the axis of the excavation stirring shaft may be at an angle to the excavation surface.
【００２７】（２）掘削撹拌軸は一対設けることが好ま
しいが、１つあるいは翼が互いに干渉しない範囲で３つ
以上設けることも可能である。また、掘削撹拌軸を一対
設ける場合、上記実施の形態では逆Ｖ字形に取付けた
が、図５に示すように支持部材をコの字形の支持フレー
ム２で構成し、この支持フレーム２にＶ字形に取付ける
ようにしてもよい。(2) It is preferable to provide a pair of excavating and stirring shafts, but it is also possible to provide one or three or more excavating shafts as long as the blades do not interfere with each other. In the case of providing a pair of excavating and stirring shafts, in the above-described embodiment, they are mounted in an inverted V-shape. However, as shown in FIG. You may make it attach to.
【００２８】（３）掘削撹拌軸の駆動機構は、上記実施
の形態で示したものに限定されず、プロペラシャフト等
を用いてもよい。(3) The drive mechanism of the excavating and stirring shaft is not limited to the one described in the above embodiment, and a propeller shaft or the like may be used.
【００２９】（４）掘削撹拌軸のみならず、接続部材を
介して支持部材も回転させるようにしてもよい。これに
より、掘削撹拌軸は自転しながら公転することになり、
掘削撹拌効率が向上する。(4) Not only the excavating and stirring shaft but also the supporting member may be rotated via a connecting member. As a result, the excavating and stirring shaft will revolve while rotating.
Drilling and stirring efficiency is improved.
【００３０】（５）この発明の掘削撹拌装置は地盤改良
工法に適用するのみならず、路面のはつり、トンネル内
部のはつり、トンネルの全断面掘削等の他の用途にも適
用できる。したがって、この発明でいう掘削撹拌軸は掘
削軸としてのみ機能する場合も含む概念である。(5) The excavating and stirring apparatus of the present invention can be applied not only to the ground improvement method, but also to other uses such as a road surface, a tunnel, and a tunnel. Therefore, the concept of the present invention includes the case where the excavating and stirring shaft functions only as the excavating shaft.
【００３１】[0031]
【発明の効果】以上のようにこの発明によれば、掘削撹
拌時に非掘削部が生じることがなく、ピッチ施工がで
き、また押し込み抵抗が低減して効率良く施工できる。As described above, according to the present invention, a non-excavated portion does not occur at the time of excavation and agitation, the pitch can be constructed, and the pushing resistance can be reduced and the construction can be performed efficiently.
【図１】図１は、この発明の実施の形態を示す正面図で
ある。FIG. 1 is a front view showing an embodiment of the present invention.
【図２】図２は、掘削撹拌軸の駆動機構を示す断面図で
ある。FIG. 2 is a cross-sectional view showing a driving mechanism of the excavating and stirring shaft.
【図３】図３は、掘削撹拌軸の駆動機構の別の実施の形
態を示す断面図である。FIG. 3 is a cross-sectional view showing another embodiment of the drive mechanism of the excavating and stirring shaft.
【図４】図４は、この発明の掘削撹拌装置を用いた地盤
改良工法を示す断面図である。FIG. 4 is a sectional view showing a ground improvement method using the excavating and stirring device of the present invention.
【図５】図５は、掘削撹拌軸の別の取付態様を示す正面
図である。FIG. 5 is a front view showing another mounting mode of the excavating and stirring shaft.
【図６】図６は、従来例を示す正面図である。FIG. 6 is a front view showing a conventional example.
【図７】図７は、別の従来例を示す正面図である。FIG. 7 is a front view showing another conventional example.
１…掘削撹拌装置 ２…支持部材（支持ケーシング） ３…掘削撹拌軸 ４…接続部材 ５…取付プレート ６…翼 ７…駆動ベベルギヤ ８…従動ベベルギヤ ９…駆動軸 １１…中空ロータ １３…油圧モータ １６…ドラム DESCRIPTION OF SYMBOLS 1 ... Excavation stirring device 2 ... Support member (support casing) 3 ... Excavation stirring shaft 4 ... Connection member 5 ... Mounting plate 6 ... Blade 7 ... Drive bevel gear 8 ... Driven bevel gear 9 ... Drive shaft 11 ... Hollow rotor 13 ... Hydraulic motor 16 …drum
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田村 恭三 千葉県千葉市花見川区柏井町1652番地 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kyozo Tamura 1652 Kashii-cho, Hanamigawa-ku, Chiba-shi, Chiba
Claims (5)
持された掘削撹拌軸とを備えた掘削撹拌装置において、 前記掘削撹拌軸は、その軸線が掘削面に対して角度をな
すように前記支持部材に取付けられていることを特徴と
する地盤の掘削撹拌装置。1. An excavating and stirring device having a supporting member and an excavating and stirring shaft rotatably supported by the supporting member, wherein the excavating and stirring shaft has an angle with respect to an excavation surface. An excavating and stirring device for ground, which is attached to the support member.
成されていることを特徴とする請求項１記載の地盤の掘
削撹拌装置。2. The excavation and stirring device for ground according to claim 1, wherein the support member is formed in a substantially tapered shape as a whole.
８０度の角度間隔を置いて一対設けられていることを特
徴とする請求項２記載の地盤の掘削撹拌装置。3. The excavating and stirring shaft is provided on the outer periphery of the support member.
The ground excavation and stirring device according to claim 2, wherein a pair is provided at an angular interval of 80 degrees.
が、前記支持部材内で駆動軸に固定された駆動ベベルギ
ヤと、この駆動ベベルギヤと噛み合う従動ベベルギヤと
を含み、 前記従動ベベルギヤに前記掘削撹拌軸が取付けられてい
ることを特徴とする請求項１、２又は３記載の地盤の掘
削撹拌装置。4. A driving mechanism for driving the excavating and stirring shaft includes a driving bevel gear fixed to the driving shaft in the support member, and a driven bevel gear meshing with the driving bevel gear. The ground excavation and stirring device according to claim 1, 2 or 3, wherein a stirring shaft is attached.
の中空ロータを駆動するための駆動機構が、該ロータに
内蔵された状態で前記支持部材に固定された駆動モータ
を含むことを特徴とする請求項１、２又は３記載の地盤
の掘削撹拌装置。5. The excavating and stirring shaft comprises a hollow rotor, and a drive mechanism for driving the hollow rotor includes a drive motor fixed to the support member while being built in the rotor. The ground excavation and stirring device according to claim 1, 2, or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4462497A JPH10227028A (en) | 1997-02-13 | 1997-02-13 | Ground excavation and agitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4462497A JPH10227028A (en) | 1997-02-13 | 1997-02-13 | Ground excavation and agitation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10227028A true JPH10227028A (en) | 1998-08-25 |
Family
ID=12696594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4462497A Pending JPH10227028A (en) | 1997-02-13 | 1997-02-13 | Ground excavation and agitation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10227028A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074083A (en) * | 2001-09-06 | 2003-03-12 | Toyo Denki Industrial Co Ltd | Water bottom sediment carrying device |
| JP2009167613A (en) * | 2008-01-11 | 2009-07-30 | Hiroshi Onodera | Cutting attachment |
| JP4831263B1 (en) * | 2011-05-16 | 2011-12-07 | 謹治 竹内 | Agitating and mixing unit for ground improvement and ground improvement device using the same |
| JP2020153155A (en) * | 2019-03-20 | 2020-09-24 | 日本基礎技術株式会社 | Agitation device, and mechanical agitation method using the same |
| JP2020535335A (en) * | 2017-09-25 | 2020-12-03 | ソレタンシュ フレシネＳｏｌｅｔａｎｃｈｅ Ｆｒｅｙｓｓｉｎｅｔ | Boring machine for forming non-linear grooves |
| CN112982373A (en) * | 2021-03-18 | 2021-06-18 | 中国水利水电第九工程局有限公司 | Milling and digging head of milling and digging machine |
-
1997
- 1997-02-13 JP JP4462497A patent/JPH10227028A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074083A (en) * | 2001-09-06 | 2003-03-12 | Toyo Denki Industrial Co Ltd | Water bottom sediment carrying device |
| JP4521139B2 (en) * | 2001-09-06 | 2010-08-11 | 株式会社東洋電機工業所 | Submarine sediment transport device |
| JP2009167613A (en) * | 2008-01-11 | 2009-07-30 | Hiroshi Onodera | Cutting attachment |
| JP4831263B1 (en) * | 2011-05-16 | 2011-12-07 | 謹治 竹内 | Agitating and mixing unit for ground improvement and ground improvement device using the same |
| WO2012157297A1 (en) * | 2011-05-16 | 2012-11-22 | Takeuchi Kinji | Stirring mixer unit for ground improvement, and ground improvement device using same |
| JP2020535335A (en) * | 2017-09-25 | 2020-12-03 | ソレタンシュ フレシネＳｏｌｅｔａｎｃｈｅ Ｆｒｅｙｓｓｉｎｅｔ | Boring machine for forming non-linear grooves |
| US11519153B2 (en) | 2017-09-25 | 2022-12-06 | Soletanche Freyssinet | Boring machine for producing a non-rectilinear trench |
| JP2020153155A (en) * | 2019-03-20 | 2020-09-24 | 日本基礎技術株式会社 | Agitation device, and mechanical agitation method using the same |
| CN112982373A (en) * | 2021-03-18 | 2021-06-18 | 中国水利水电第九工程局有限公司 | Milling and digging head of milling and digging machine |
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