JPS5837220A - Drilling and kneading device and amending method for ground using said device - Google Patents
Drilling and kneading device and amending method for ground using said deviceInfo
- Publication number
- JPS5837220A JPS5837220A JP13375781A JP13375781A JPS5837220A JP S5837220 A JPS5837220 A JP S5837220A JP 13375781 A JP13375781 A JP 13375781A JP 13375781 A JP13375781 A JP 13375781A JP S5837220 A JPS5837220 A JP S5837220A
- Authority
- JP
- Japan
- Prior art keywords
- ground
- shaft
- tube shaft
- outer tube
- drilling
- 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
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、相互別々に回転する２重管軸回において、外
管軸（１）は高速回転をなし且つ外面に攪拌部（２）を
設け、内軸（３）は低速口＠ｔなし且つ先端にピット４
）を有すると共に液体を吐出する孔（５）を設け、上記
２重管軸（３）を複数本並設して成ることを特徴とする
削孔混練機ｔ＠１発明とし、併せて相互に別々に回転す
る２重管軸（Ａ）において、外管軸＋１） Ｖｉ高速回
転ｔなし且つ外面に攪拌部＋２１１！−設け、内軸（３
）は低速回転をなし且つ先端にピット（４）を有すると
共に液体を吐出する孔（５）ヲ設け、上記２重管軸（Ａ
）ｔ−複数本並設して削孔混練機を形成し、この削孔混
線機にて先端並びに側方からセメシトミルクその他の土
砂固結用液を圧噴出しつつ地盤を削孔し、地盤中にセメ
ントミルクその他の土砂固結用液（８）を注入して外管
軸（１）の攪拌部（２）にてセメシトミルクその他の土
砂固結用液（８）と土砂とを混合することを特徴とする
削孔混練機を用い友地盤を改良する工法を第２発明とす
る発明に係るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a double-tube shaft rotation system that rotates independently of each other, in which the outer tube shaft (1) rotates at high speed and is provided with an agitation section (2) on the outer surface, and the inner shaft (3) rotates at high speed. has no low speed mouth @t and pit 4 at the tip
) and a hole (5) for discharging liquid, and a plurality of the above-mentioned double tube shafts (3) are arranged in parallel. In the double tube shaft (A) that rotates separately, the outer tube shaft +1) Vi has no high-speed rotation t and has a stirring part on the outer surface +211! - Provided, inner shaft (3
) rotates at a low speed and has a pit (4) at the tip and a hole (5) for discharging liquid, and the double tube shaft (A
) T-Multiple units are installed in parallel to form a hole-drilling mixer, and this hole-drilling mixer drills holes in the ground while pressurizing semesitomilk and other soil consolidation liquids from the tip and sides. Cement milk or other liquid for soil consolidation (8) is injected into the container, and cement milk or other liquid for soil consolidation (8) is mixed with the earth and sand in the stirring part (2) of the outer tube shaft (1). This invention relates to a second invention which is a construction method for improving the soft ground using the characteristic drilling and kneading machine.
軟弱な土砂にて組成されている地盤（以下軟弱地盤と称
す）を改良する場合に其の下部の締った固い土砂の地盤
又は岩盤（硬質地盤と以下称する）の上層部の１部にわ
たり同様な改良を施さねば、地層が斜めに構成されてい
る場合、軟弱地盤と硬質地盤との界いから地上り現象が
生ずることが多々ある。一般に軟弱地盤改良の時は回転
軸の先端、又は側方から土砂固結用液を圧噴射させつつ
噴射液圧にて、土砂と土砂固結用液を混合させる場合が
ある。この場合噴射液圧のみのため、攪拌混合が不充分
となる。″１１回転軸の先端から固結用液を吐出させつ
つ削孔し、回転軸に取付けられである攪拌混練翼にて土
砂と土砂固結用液を混練するものがあるが、この場合回
転軸の回転を高速回転せしめなければ土砂固結用液と土
砂との混練は充分に行なわれない。しかるに回転軸全高
速回転させるとトルク（回転の強さ）が減少して削孔能
力が低下すると同時に硬質地盤の上層部の一部等は削孔
不能となるものである。一方削孔トルク？増大させると
回転が低回転となって攪拌混線が不充分となるものであ
る。また地盤改良によって山奮壁會形成する場合には削
孔混練機で円柱状の柱体に１つ１つ作っていつ九のでは
時間がかかりすぎ、コストが高くなり、長期間の施工を
必要大きい削孔混練機の開発及び地盤改良の工法が強く
望まれているのが穂状である。When improving the ground composed of soft earth and sand (hereinafter referred to as the soft ground), the same applies to the lower part of the compacted hard earth and sand or a part of the upper layer of the bedrock (hereinafter referred to as the hard ground). If proper improvements are not made, if the strata are diagonally structured, the phenomenon of ground climbing will often occur due to the boundary between soft and hard ground. Generally, when improving soft ground, the soil and sand consolidation liquid may be mixed by the injection liquid pressure while being injected from the tip or side of the rotating shaft. In this case, since only the injection liquid pressure is used, stirring and mixing will be insufficient. ``11 There is a machine that drills a hole while discharging a consolidation liquid from the tip of a rotating shaft, and mixes the soil and soil consolidation liquid with a stirring and kneading blade attached to the rotating shaft. If the rotating shaft is not rotated at a high speed, the soil consolidation liquid and the soil will not be sufficiently mixed. However, if the rotary shaft is rotated at full speed, the torque (rotational strength) will decrease and the drilling ability will decrease. At the same time, it becomes impossible to drill holes in a part of the upper layer of hard ground.On the other hand, if the drilling torque is increased, the rotation becomes low and stirring becomes insufficient.Also, by improving the ground When forming a mountain wall, it takes too much time and costs to make each cylinder one by one using a drilling kneading machine, which increases the cost and requires long-term construction. It is for the panicle that there is a strong need for the development of machinery and soil improvement methods.
本発明は上記の点に鑑みて発明したものであって、その
目的とするところは攪拌混練が充分におこ彦え且つ削孔
能力が低下せず、且つ１回の削孔面積が大きい削孔混練
機と、短時間で簡単且つｍ＊に地盤改良ができ、特に軟
弱地盤と硬質地盤を一体として改良をおこなうことがで
きて断層上９ｔ−防止できる削孔混練機を用い友地盤を
改良する工法を提供するにある。The present invention was invented in view of the above points, and its purpose is to sufficiently perform stirring and kneading, do not reduce hole-drilling ability, and drill a large area in one drilling. Improving friendly ground using a kneading machine and a drilling kneading machine that can easily improve the ground to m* in a short time, and in particular can improve soft ground and hard ground as one, and can prevent 9t on faults. We provide construction methods.
以下本発明七英施例により詳述する。第１図には本発明
に係る削孔混練機の１例が示しである。The present invention will be explained in detail below using seven examples. FIG. 1 shows an example of a drilled hole kneading machine according to the present invention.
図中（３）は内軸であって、円軸（３）の外周に外管軸
（１）が外嵌してあって２重管軸部）が形成してあり、
２重管軸（Ａ）ｔ−構成する内軸（３）と外管軸＋１）
とは相互に別々に回転するようになっている。外管軸＋
１１ ｆ′ｉ外面の上下方向の全長又は上下方向に部分
的に攪拌部（２）が設けである。上記の構造の２重管軸
込）を複数本並設して削孔混練機が形成しである。各２
重管軸込）の上Ｓは多軸装置Ｉｌｌ員に取付けてあり、
原動機のような駆動装置αυの回転が多軸装置０Ｉに伝
えられ、多軸装置α１部分で響速機構を用いて各２重管
軸Ａ）の外管軸（１）ｔ−高速回転すると共に内軸（３
）を低速回転するようＶｒ−なっている。もちろん各２
重管軸（Ａ）を大々別々の駆動装置αυによって変速機
構音用いて外管軸（１）全高速回転すると共に円軸（３
）ヲ低速回転するようにしてもよい。更に各外管軸（１
）全それぞれ独立し次駆動装置αυで回転し、各内軸（
３）ヲそれぞれ独立した駆動装置αυで回転するように
してもよい。ここで２重管軸部）について更に説明する
と、円軸（３）の下部は外管軸（１）と同径の大径部０
となっており、この大径部０が外管軸（１）より下方に
突出していて大径ｓ負のに削孔用ヒツト（４）が取付け
てあり、また大径部ａ湯に先端（下方）と側方とに液体
を吐出（又は噴出）する孔（５）が設けである。図中（
９）は孔（５）に液体を送るための縦孔である。また内
軸（３）には保合突部０ｚが設けてあり、係合突部（１
７Ｊけ外管軸（１）の内周面の凹溝条（７）に摺動自在
に係合しているものである。図中（ＩＳは外管軸ｍ同士
又は円軸（３）の下端部同士を連結する連結具であり、
軸受部〔ｅを外管軸（１）又は内軸（３）に回転自在Ｋ
ｌ！嵌しである。In the figure, (3) is the inner shaft, and the outer tube shaft (1) is fitted onto the outer periphery of the circular shaft (3), forming a double tube shaft portion.
Double tube axis (A) t - Consisting inner axis (3) and outer tube axis +1)
and rotate independently from each other. Outer tube shaft +
11 f'i A stirring section (2) is provided along the entire vertical length of the outer surface or partially along the vertical direction. A drilled-hole kneading machine is formed by arranging a plurality of double-pipe shafts with the above-mentioned structure in parallel. 2 each
The upper S of the heavy pipe shaft is attached to the multi-shaft device Ill member,
The rotation of the drive device αυ, such as a prime mover, is transmitted to the multi-axis device 0I, and the outer tube shaft (1) t of each double tube shaft A) is rotated at high speed using an acoustic speed mechanism in the multi-axis device α1 part. Inner shaft (3
) is set to Vr- so that it rotates at a low speed. Of course 2 each
The heavy tube shaft (A) is rotated at full speed by the outer tube shaft (1) using a transmission mechanism sound by a large separate drive device αυ, and the circular shaft (3
) may be rotated at a low speed. Furthermore, each outer tube shaft (1
) are all rotated independently by the next drive device αυ, and each inner shaft (
3) They may be rotated by independent drive devices αυ. To further explain the double tube shaft (double tube shaft), the lower part of the circular shaft (3) has a large diameter portion 0 that has the same diameter as the outer tube shaft (1).
This large diameter part 0 protrudes downward from the outer tube shaft (1), a hole drilling hit (4) is attached to the negative part of the large diameter part s, and a tip (4) is attached to the large diameter part a. Holes (5) for discharging (or spouting) liquid are provided at the bottom) and at the sides. In the figure (
9) is a vertical hole for sending liquid to the hole (5). Furthermore, the inner shaft (3) is provided with a retaining protrusion 0z, and an engaging protrusion (1) is provided on the inner shaft (3).
It is slidably engaged with a concave groove (7) on the inner circumferential surface of the 7J outer tube shaft (1). In the figure (IS is a connector that connects the outer tube shafts m or the lower ends of the circular shafts (3),
Bearing part [e can be freely rotated to the outer tube shaft (1) or inner shaft (3)
l! It is a fit.
次に本発明の方法について説明する。まず、前述した構
造の削孔混練機を杭打機の櫓に取付け、２重管削孔混線
機を杭打機からのワイヤーにて上下に昇降するようにセ
ットする。しかして２重管削孔混線機を下降させながら
内軸（３）ヲ低速回転させると共に外管軸（１）ｔ−高
速回転させる。内軸（３）は低速回転させながら孔（５
）からセメントミルクその他の土砂固結用１［（８）
を噴出させ表からピット（４）で地盤を削孔していく。Next, the method of the present invention will be explained. First, the drilling mixer having the above-described structure is attached to the turret of the pile driver, and the double pipe drilling mixer is set to move up and down using the wire from the pile driver. Then, while lowering the double tube drilling mixer, the inner shaft (3) is rotated at a low speed, and the outer tube shaft (1) is rotated at a high speed. The inner shaft (3) is rotated at low speed while opening the hole (5).
) to cement milk and other soil consolidation 1 [(8)
A hole is drilled into the ground from the surface using a pit (4).
掘削土砂と土砂固結用液（８）と幡高速で回転する外管
軸（１）に設けた攪拌部（２）によって攪拌混練される
のである。この場合、先端に噴出する土砂固結用液（８
）はじット４）の下方の地盤をくずし、側方に噴出する
土砂固結用液（８） Ｆｉ側方の地盤をくずすものであ
る。ここで内軸（３） ｄ低速回転させるので削孔トル
クが増大し軟弱地盤はもとより硬質地盤であって％ａＩ
英に削孔でき、また外管軸＋１）は高速回転で回転させ
るので高速回転する攪拌混練−（２）によって掘削土砂
と土砂固結用液（８）とが高速で攪拌混練されることと
なる。上ことで山留壁を形成することもできる。The excavated soil and soil consolidation liquid (8) are stirred and kneaded by a stirring section (2) provided on an outer tube shaft (1) that rotates at high speed. In this case, the soil consolidation liquid (8
) The earth and sand consolidation liquid (8) collapses the ground below Fi and squirts out to the side. Here, the inner shaft (3) d is rotated at a low speed, so the drilling torque increases, and it is difficult to drill on soft ground as well as on hard ground.
Since the outer tube shaft +1) rotates at high speed, the excavated soil and soil consolidation liquid (8) can be stirred and kneaded at high speed by stirring and kneading (2), which rotates at high speed. Become. It can also form a retaining wall.
ところで第１図の実施例にあっては外管軸（１）Ｋ攪拌
翼（２ａ ）？設けて攪拌部（２）とした例が示してあ
り、隣りあう外管軸（１）に設は友攪拌翼（ｚ＆）は上
下に互いにずれており且つ攪拌翼（２ａ）同士の回転軌
跡の一部が互いに重複しあうようになっている。この実
施例のものは攪拌部（２）として攪拌翼（２ａ）大第２
図乃至第４図の実施例にあっては外管軸（１）にスクリ
ュー＠（２ｂ）を設けて攪拌５（２）とした例が示しで
ある。この実施例ではスクリュ一部（２ｂ）によって混
合物を一定程度上昇又は下降させながら混合するもので
あって上下の混合物を互いに混合することができる。こ
の場合すべての外管軸（１）ヲ同一方向に回転させても
よく、あるいけ隣りあう外管軸（１） ｔ−逆回転の関
係となるようにしてもよい。あるいけスクリュ一部（２
ｂ）の巻き方向をすべて同一方向としてもよく、あるい
け横方向に隣りあうスクリュ一部（２ｂ）の巻き方向を
逆向きとなるようにしてもよい。このように各外管軸（
１）の回転方向、スクリュ一部（２ｂ）の巻き方向を適
宜選択することで、混合物を一定程度上昇させながら攪
拌混練したり、あるいけ混合物を一方において上昇させ
ると共に下方におり、、て下降させて両者ｋｆｌＡ合さ
せながら攪拌混線をしたりできるものである。また第す
図の実施例にあっては攪拌部（２）として攪拌翼（２＆
ンとスクリュ一部（２ｂ）と音用いた例が示しである。By the way, in the embodiment shown in FIG. 1, the outer tube shaft (1) K stirring blade (2a)? An example is shown in which the stirring blades (z&) installed on adjacent outer tube shafts (1) are vertically offset from each other, and the rotation trajectory of the stirring blades (2a) is different from each other. Some of them overlap with each other. In this example, the stirring part (2) has a large second stirring blade (2a).
In the embodiments shown in FIGS. 4 to 4, a screw @ (2b) is provided on the outer tube shaft (1) to provide stirring 5 (2). In this embodiment, the mixture is mixed while being raised or lowered to a certain extent by the screw part (2b), and the upper and lower mixtures can be mixed with each other. In this case, all the outer tube shafts (1) may be rotated in the same direction, or the adjacent outer tube shafts (1) may be rotated in opposite directions. Part of the Arike screw (2
The winding directions of b) may all be in the same direction, or the winding directions of the screw portions (2b) that are adjacent to each other in the transverse direction may be opposite to each other. In this way, each outer tube axis (
By appropriately selecting the rotational direction of 1) and the winding direction of the screw part (2b), you can stir and knead the mixture while raising it to a certain degree, or raise the mixture on one side and move it downward, then lower it. This makes it possible to stir and mix the two kflA while combining them. In addition, in the embodiment shown in FIG.
An example using a screw part (2b) and a sound is shown.
＃！１３図１３図〜ｗにおいて大径のスクリュ一部（２
ｂ獄隣りの大径のスクリュー＠（２ｂ）と回転軌跡が上
下方向に一部重複し、第５図において攪拌翼（２ａ社隣
りの攪拌翼（２１）と回転軌跡が上下方向に一部重複し
ている。#! 13 In Figures 13-w, part of the large diameter screw (2
The rotation trajectory of the large-diameter screw @ (2b) next to Company B partially overlaps in the vertical direction, and in Fig. 5, the rotation trajectory partially overlaps in the vertical direction with the stirring blade (21) next to company 2a. are doing.
本発明にあっては叙述のように、相互側々に回転する２
重管軸において、外管軸は高速回転をなし且つ外面に攪
拌部を設け、内軸は低速回転をなし且つ先端にピットを
有すると共に液体を吐出する孔を設け、上記２重管を複
数本並設しであるので、内軸が低速回転してトルクが増
大し、軟弱地盤はもとより硬質地盤でも１回の掘削で広
い面積を削孔でき、しかも外管軸が高速回転して土砂固
結用液と掘削土砂との攪拌混練が良好におこなわれるも
のである。しかも上記削孔混練機にてセメントミルクそ
の他の土砂固結用液を圧噴出しつつ地盤を削孔し、地盤
中にセメシトミルクその他の土砂固結用液を注入して外
管軸の攪拌部にてセメントミルクその他の土砂固結用液
と土砂とを混合するので、１回の掘削で広い面積の軟弱
地盤の改良を良好にすることができ、またこの場合軟弱
地盤の下方の硬質地盤の上層部の削孔も低速回転する内
軸先端のピットによってａ１英に削孔できて、軟弱地盤
と硬質地盤を一体とした地盤改良（もちろんこれをその
まま山留壁とすること）が短期間できるものである。In the present invention, as described above, two parts are rotated from side to side.
In the double tube shaft, the outer tube shaft rotates at high speed and has a stirring part on its outer surface, and the inner shaft rotates at low speed and has a pit at the tip and a hole for discharging liquid, and a plurality of the double tubes are connected to each other. Because they are installed side by side, the inner shafts rotate at low speeds to increase torque, making it possible to drill a wide area in one excavation in both soft and hard ground, and the outer shafts rotate at high speeds to improve soil consolidation. Stirring and kneading of the irrigation solution and excavated soil can be performed well. In addition, the hole is drilled in the ground while pressure-spraying cement milk and other soil consolidation liquids using the above-mentioned hole-drilling and kneading machine, and cement milk and other soil consolidation liquids are injected into the ground into the stirring section of the outer tube shaft. Since cement milk or other soil consolidation liquid is mixed with soil and sand, it is possible to improve a wide area of soft ground with one excavation. The pit at the tip of the inner shaft, which rotates at low speed, can be used to drill holes in the A1 area, making it possible to improve the ground by integrating soft and hard ground (of course, using this as a retaining wall) in a short period of time. It is.
第１図（ＪＬ） （ｂ）は本発明の一実施例及び他の一
部切欠せる正面図、第２図は同上の他の実施例の一部切
欠せる正面図、第３図は同上の更に他の実施例の一部切
欠せる正面図、第４図は同上の更に他の実施例の一部切
欠せる正面図、第５図は同上の更に他の実施例の一部切
欠せる正面図でろって、（１）は外管軸、（２）は攪拌
部、（３）は内軸、（４）はピット、（５）は孔、（８
）は固結用液、囚は２重管軸である。
代理人 弁理士 石 １）長 七
第１図
（０）
第１図
（ｂ）Fig. 1 (JL) (b) is a partially cutaway front view of one embodiment of the present invention and another, Fig. 2 is a partially cutaway front view of another embodiment of the same as above, and Fig. 3 is the same as above. FIG. 4 is a partially cutaway front view of yet another embodiment of the same as above; FIG. 5 is a partially cutaway front view of still another embodiment of the same as above; FIG. (1) is the outer tube shaft, (2) is the stirring part, (3) is the inner shaft, (4) is the pit, (5) is the hole, (8
) is the caking liquid, and the holder is the double tube shaft. Agent Patent Attorney Ishi 1) Chief 7 Figure 1 (0) Figure 1 (b)
Claims (2)
高速回転をなし且つ外面に攪拌部を設け、内軸は低速回
転ｔなし且つ先端にピットを有すると共に液体を吐出す
る孔を設け、上記２重管軸を複数本並設して成ることを
特徴とする削孔混練機。(1) In a double tube shaft that rotates separately from each other, the outer tube shaft rotates at high speed and has a stirring part on the outer surface, and the inner tube does not rotate at low speed and has a pit at the tip and a hole for discharging liquid. A drilling kneading machine characterized in that a plurality of the above-mentioned double tube shafts are arranged in parallel.
は高速回転をなし且つ外面に攪拌Ｓを設け、内軸は低速
回転をなし且つ先端にピットを有すると共に液体を吐出
する孔を設け、上記２重管軸を複数本並設して削孔混練
機を形成し、この削孔混練機にてセメントミルクその他
の土砂固結用液を圧噴出しつつ地盤を削孔し、地盤中に
セメントミルクその他の土砂固結用液を注入して外管軸
の攪拌部にてセメシトミルクその他の土砂固結用液と土
砂とを混合することを特徴とする削孔混練機を用いた地
盤を改良する工法。(2) In the dual tube shafts that rotate separately from each other, the outer tube shaft rotates at high speed and has a stirring S on the outer surface, and the inner tube rotates at low speed and has a pit at the tip and a hole for discharging liquid. A hole-drilling kneading machine is formed by arranging a plurality of the above-mentioned double pipe shafts in parallel, and the ground is drilled while pressure-spraying cement milk or other earth and sand consolidation liquid with this hole-drilling kneading machine, A drilling kneader is used, which is characterized by injecting cement milk or other soil consolidation liquid into the ground and mixing the cement milk or other soil consolidation liquid with the earth and sand in the stirring section of the outer tube shaft. A construction method to improve the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13375781A JPS5837220A (en) | 1981-08-26 | 1981-08-26 | Drilling and kneading device and amending method for ground using said device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13375781A JPS5837220A (en) | 1981-08-26 | 1981-08-26 | Drilling and kneading device and amending method for ground using said device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5837220A true JPS5837220A (en) | 1983-03-04 |
Family
ID=15112229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13375781A Pending JPS5837220A (en) | 1981-08-26 | 1981-08-26 | Drilling and kneading device and amending method for ground using said device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5837220A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02210115A (en) * | 1988-11-29 | 1990-08-21 | Gd Anker Gmbh | Anchor fitting method and apparatus for soft base rock |
| JPH03208910A (en) * | 1990-01-11 | 1991-09-12 | Seiko Kogyo Kk | Double pipe boring and kneading machine and land improvement using same |
| JPH03208911A (en) * | 1990-01-11 | 1991-09-12 | Seiko Kogyo Kk | Double pipe boring and mixing machine and land improvement using same |
| JPH03208909A (en) * | 1990-01-11 | 1991-09-12 | Seiko Kogyo Kk | Double pipe boring and kneading machine and land improvement using same |
| US5163784A (en) * | 1990-01-11 | 1992-11-17 | Kabushiki Kaisha Ask Kenkyusho | Double-tube type boring and kneading machine, and method for improving foundation ground therewith |
| US5275513A (en) * | 1992-06-22 | 1994-01-04 | E. I. Du Pont De Nemours And Company | Apparatus and method for in-situ treatment of a medium |
| CN101864765A (en) * | 2010-06-30 | 2010-10-20 | 东南大学 | Two-way stirring based SMW construction method and tri-axial stirring equipment |
-
1981
- 1981-08-26 JP JP13375781A patent/JPS5837220A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02210115A (en) * | 1988-11-29 | 1990-08-21 | Gd Anker Gmbh | Anchor fitting method and apparatus for soft base rock |
| JPH03208910A (en) * | 1990-01-11 | 1991-09-12 | Seiko Kogyo Kk | Double pipe boring and kneading machine and land improvement using same |
| JPH03208911A (en) * | 1990-01-11 | 1991-09-12 | Seiko Kogyo Kk | Double pipe boring and mixing machine and land improvement using same |
| JPH03208909A (en) * | 1990-01-11 | 1991-09-12 | Seiko Kogyo Kk | Double pipe boring and kneading machine and land improvement using same |
| US5163784A (en) * | 1990-01-11 | 1992-11-17 | Kabushiki Kaisha Ask Kenkyusho | Double-tube type boring and kneading machine, and method for improving foundation ground therewith |
| US5275513A (en) * | 1992-06-22 | 1994-01-04 | E. I. Du Pont De Nemours And Company | Apparatus and method for in-situ treatment of a medium |
| CN101864765A (en) * | 2010-06-30 | 2010-10-20 | 东南大学 | Two-way stirring based SMW construction method and tri-axial stirring equipment |
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