JPH06193059A - Multiple spindle agitation device for civil engineering work - Google Patents
Multiple spindle agitation device for civil engineering workInfo
- Publication number
- JPH06193059A JPH06193059A JP35734692A JP35734692A JPH06193059A JP H06193059 A JPH06193059 A JP H06193059A JP 35734692 A JP35734692 A JP 35734692A JP 35734692 A JP35734692 A JP 35734692A JP H06193059 A JPH06193059 A JP H06193059A
- Authority
- JP
- Japan
- Prior art keywords
- soil
- shaft
- casing
- civil engineering
- stirring
- 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.)
- Withdrawn
Links
- 238000013019 agitation Methods 0.000 title abstract 4
- 239000002689 soil Substances 0.000 claims abstract description 75
- 238000003756 stirring Methods 0.000 claims description 81
- 239000000463 material Substances 0.000 claims description 29
- 238000010276 construction Methods 0.000 claims description 21
- 230000006872 improvement Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000004568 cement Substances 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 18
- 239000008267 milk Substances 0.000 abstract description 13
- 210000004080 milk Anatomy 0.000 abstract description 13
- 235000013336 milk Nutrition 0.000 abstract description 13
- 239000003673 groundwater Substances 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 239000006185 dispersion Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 239000004848 polyfunctional curative Substances 0.000 abstract 3
- 238000005553 drilling Methods 0.000 description 22
- 241000196324 Embryophyta Species 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000012937 correction Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000003895 groundwater pollution Methods 0.000 description 3
- 238000007788 roughening Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Piles And Underground Anchors (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】開示技術は、軟弱地盤改良や地中
杭等の構築に際し、基礎杭や柱列連続地中壁等を地盤中
に構築する土木施工用の装置の構造技術の分野に属す
る。[Industrial application field] The disclosed technology is applied to the field of structural technology of a device for civil engineering to construct foundation piles and continuous underground rows of pillars in the ground when improving soft ground and constructing underground piles. Belong to
【０００２】[0002]
【従来の技術】周知の如く、国土の面積が狭隘で山岳地
帯，森林地帯の多くが主要部を占め農耕，牧畜，住宅，
工場施設等に利用する平野部は複雑に入り組んで近接し
ている地勢の我が国にあっては土地の有効利用は極めて
重要であり、旧くから地盤改良技術が種々開発研究さ
れ、例えば、遠浅海岸，河川，湖沼の流域等の軟弱地盤
を固化するサンドドレーンやケミコパイル等の工法が実
用化され、更に大規模な施工を能率良く行うために薬液
注入工法等も実用化されている。2. Description of the Related Art As is well known, the land area of the country is narrow, and most of the mountainous areas and forest areas account for the majority of agriculture, livestock, housing,
In Japan where the plains used for factory facilities are intricately intricate and close to each other, effective use of land is extremely important, and various land improvement techniques have been developed and studied since ancient times. Construction methods such as sand drains and Chemico piles that solidify soft ground such as rivers and lake basins have been put to practical use, and chemical solution injection methods have also been put to practical use in order to perform large-scale construction efficiently.
【０００３】而して、近時公害問題や環境調和問題が地
域的のみならず、全地球規模でクローズアップされ、各
種産業はかかる問題を避けては成立しないようになり、
建設産業にあっても同様で地下水汚染や環境破壊を生じ
ないようにセメントミルク等の固化材を地盤中の土壌等
と混合攪拌して改良土とし経時的に凝固させソイルセメ
ントコラム等の固化された地中杭を形成させる工法が広
く採用されるようになってきている。[0003] Recently, pollution problems and environmental harmony problems are not only locally but globally noticed, and various industries cannot avoid these problems.
In the construction industry as well, solidification materials such as cement milk are mixed and stirred with soil in the ground to prevent groundwater pollution and environmental damage, and solidified as improved soil over time to solidify soil cement columns, etc. The method of forming underground piles has been widely adopted.
【０００４】而して、軟弱地盤改良の地中構造体や基礎
杭等の地中杭や柱列連続地中壁等は１本のソイルセメン
トコラムでは成りたたず、したがって、図９に示す様
に、該ソイルセメントコラム１，１…を横方向に相隣っ
てオーバーラップ部２，２を介し一体化する柱列連続地
中壁３や図１０に示す様に、ソイルセメントコラム１，
１…を相互に横方向オーバーラップ部２を介し縦横に接
合状態にして地盤中に一体的な群列構造物３' を形成す
ることが強度，剛性等の構造上の点から強く求められる
ようになり、かかる地中構造物３，３' を構築するに、
所定の地盤領域にクローラタイプ等の台車を搬入セット
し、そのリーダーに沿ってケーシングパイプやオーガー
を添設し削孔を掘削形成し、該削孔内の土壌に対しセメ
ントミルク等の固化材をスイーベルジョイントを介して
送給噴射し、攪拌混合して均一状態に分散し、改良土と
して経時的に凝固固化するような施工技術が用いられ、
該改良土を１本ずつ形成して上述図９，図１０の地中構
築物３，３' をオーバーラップ部２を介して形成するに
は工期等の点で非能率的であり、又、施工精度が悪いこ
とからリーダーに横向き複数のケーシングパイプやオー
ガーを併設配列し一度に複数本の削孔形成を介し改良土
を形成するような技術が採用されてきたが、削孔中の土
壌が拘束されないことから、土壌と固化材との混合土
が、或いは、これらの一方が側方に逸散する虞があり、
これに伴って、地下水汚染等も随伴して生ずる虞もある
ことから、削孔、及び、該削孔内の土壌を拘束すべく攪
拌翼の外側に同時に回転するケーシングを有する所謂地
中ミキサーが開発され、図１１に示す様に、所定の回転
駆動装置に回転シャフト４を連結させて回転させ、該回
転シャフト４の外軸と一体にドラム型のケーシング５を
回転させるようにし、内軸６に遊装するカラー７と該ド
ラム型ケーシング５との間に内向き固定攪拌翼８を固設
して軸方向所定段数多段に固定し、又、内軸６には外向
き固定攪拌翼８を同じく所定段数多段に相互の攪拌翼
８，９が干渉しないように設け、更に、内軸６の下端に
はビット付の攪拌翼１０を設けた地中ミキサー１１を各
回転シャフト４の先端に設けて削孔を形成し、内部に相
対的に侵入する土壌を壊砕，裂断して内軸６の先部に設
けたノズル１２，１２からセメントミルク等の所定の固
化材１３を該土壌中に噴射して可及的均一に混合分散さ
せて改良土とし、確実に削孔内から壊砕裂断された土壌
の逸散を防止し、該削孔の崩壊や肌荒れ、又、それによ
る地下水浸入等を防止し、逆に固化材１３の地下水への
逸走、浸入を防止する等のメリットのある施工が可能で
あるようにされている。[0004] Therefore, the underground structure for soft ground improvement, the underground pile such as foundation pile, and the continuous underground wall of the pillar row cannot be formed by one soil cement column, and therefore, it is shown in FIG. Similarly, the soil cement columns 1, 1 ... Are laterally adjacent to each other and integrated with each other through the overlapping portions 2, 2 as shown in FIG.
It is strongly required from the structural point of view of strength, rigidity, etc. to form the grouped structure 3'integrated in the ground by connecting 1 ... to each other in the vertical and horizontal directions through the lateral overlap portion 2. In order to construct such an underground structure 3, 3 ',
A trolley of a crawler type, etc. is carried in and set in a predetermined ground area, a casing pipe or auger is attached along the leader to form a drilling hole, and a solidifying material such as cement milk is added to the soil in the drilling hole. A construction technique is used in which it is fed and injected through a swivel joint, stirred and mixed, dispersed in a uniform state, and solidified and solidified as improved soil over time.
It is inefficient in terms of construction period to form the improved soils one by one to form the underground structures 3, 3'of FIGS. 9 and 10 described above through the overlap portion 2, and the construction is also inefficient. Due to its poor accuracy, a technique has been adopted in which multiple casing pipes and augers are arranged side by side on the leader, and improved soil is formed through the formation of multiple holes at a time, but the soil during drilling is restricted. Since it is not done, there is a risk that the mixed soil of soil and solidifying material, or one of these will escape to the side,
In connection with this, since there is a risk that groundwater pollution will also occur, a so-called underground mixer having a drilling hole and a casing that simultaneously rotates outside the stirring blade to restrain the soil in the drilling hole is provided. As has been developed, as shown in FIG. 11, the rotary shaft 4 is connected to a predetermined rotary drive device for rotation, and the drum-shaped casing 5 is rotated integrally with the outer shaft of the rotary shaft 4 and the inner shaft 6 An inward-fixed stirring blade 8 is fixed between the collar 7 and the drum-shaped casing 5 and is fixed in a predetermined number of stages in the axial direction, and an outer fixed stirring blade 8 is attached to the inner shaft 6. Similarly, a plurality of predetermined stages are provided so that the mutual stirring blades 8 and 9 do not interfere with each other, and further, an underground mixer 11 provided with a stirring blade 10 with a bit at the lower end of the inner shaft 6 is provided at the tip of each rotary shaft 4. Soil that forms a hole and relatively invades inside Crushing and breaking, and spraying a predetermined solidifying material 13 such as cement milk from the nozzles 12, 12 provided at the tip of the inner shaft 6 into the soil to mix and disperse it as uniformly as possible to obtain improved soil. , Surely prevent the escape of soil that has been shredded and broken from within the drilling hole, prevent collapse of the drilling hole, rough skin, and intrusion of groundwater, etc., and conversely escape of the solidifying material 13 to groundwater It is designed so that construction with merits such as prevention of infiltration is possible.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、かかる
地中ミキサーを横方向複数連装配列することは設計的に
は可能であっても、逆にドラム型ケーシング５が削孔を
形成することにより、円柱型の改良土相互がオーバーラ
ップ部２，２を介して連結されるにしても、該オーバー
ラップ部外側部での連結があまく、地中構造物の地盤内
における立体的一体化が必ずしも確実に形成される保証
がないという不具合があった。However, although it is possible in design to arrange a plurality of such underground mixers in a row in the lateral direction, conversely, by forming holes in the drum-shaped casing 5, a cylindrical column is formed. Even if the improved soils of the mold are connected to each other through the overlap portions 2 and 2, the connection at the outer portion of the overlap portion is sufficient, so that the three-dimensional integration of the underground structure in the ground is not always sure. There was a defect that there was no guarantee that it would be formed.
【０００６】しかも、これらの地中構造物はその施工に
際し、地上からは目視観察されず、確認が出来ないこと
から、施工精度の管理がし難いという難点があった（も
ともと図９，図１０に示す地中構造物３，３' の各地中
杭１，１の相互相隣る連結がオーバーラップ部２を介し
て連結されることは困難で本来的には各地中杭１，１…
がオーバーラップ部に略一体的に形成されることが望ま
しいものではある）。In addition, since these underground structures are not visually observed and cannot be confirmed from the ground during the construction, it is difficult to control the construction accuracy (originally, FIGS. 9 and 10). It is difficult to connect mutually adjacent piles 1, 1 of the underground structures 3, 3'shown in Fig. 1 through the overlap part 2, and the piles 1, 1 of each place are originally ...
Is preferably formed substantially integrally with the overlapping portion).
【０００７】[0007]
【発明の目的】この出願の発明の目的は上述従来技術に
基づくソイルセメントコラム等基礎杭や柱列連続地中
壁、或いは、軟弱地盤改良構造体の地中構築に際しての
相互一体連結の問題点を解決すべき技術的課題とし、地
盤内での構築であって地上から目視観察が出来ないこと
を前提条件としながらも、該地盤中に於て削孔形成と該
削孔内の土壌と供給されるセメントミルク等の固化材と
の壊砕，裂断を介しての均一攪拌、及び、分散混合が部
分的なオーバーラップばかりでなく、より大断面で成さ
れて連結体が出来るようにし、削孔の崩壊や孔荒れ、そ
して、それらによる地下水浸入を防止し、併せて、固化
材の削孔外への逸散を防止し、確実に設計通りの地中構
造体が出来るようにして建設産業における土木技術利用
分野に益する優れた土木施工用多軸攪拌装置を提供せん
とするものである。OBJECT OF THE INVENTION The object of the invention of this application is the problem of mutual integration when constructing underground piles such as soil cement columns or continuous underground walls of pillar columns or soft ground improvement structures based on the above-mentioned prior art. Is a technical issue to be solved, and it is a prerequisite that it cannot be visually observed from the ground because it is constructed in the ground, and the formation of holes in the ground and the supply of soil in the holes Crushing with a solidifying material such as cement milk, uniform stirring through tearing, and dispersive mixing not only partially overlap but also have a larger cross section to form a connected body, Prevents collapse and roughening of drilling holes, and intrusion of groundwater due to them, and also prevents solidified material from escaping outside the drilling holes to ensure that an underground structure as designed can be constructed. Excellent to benefit civil engineering applications in industry Is to St. provide a multi-axis stirrer for wood construction.
【０００８】[0008]
【課題を解決するための手段・作用】上述目的に沿い先
述特許請求の範囲を要旨とするこの出願の発明の構成
は、前述課題を解決するために、軟弱地盤等の地盤中に
軟弱地盤改良構造体や各構築等の基礎杭等の地中構造物
を削孔により、及び、該削孔内に土壌にセメントミルク
等の固化材を噴射して攪拌することにより、可及的均一
分散状態にして経時的に凝固させるに際し、当該所定地
盤領域にクローラタイプ等の台車を搬入し、そのリーダ
ーに横方向所定数複数連装配列した回転シャフトの最外
列の外軸に断面楕円形状等のエンドレスタイプの回転ケ
ーシングを攪拌翼を介して固設したスプロケットにより
回転自在に設け、駆動スプロケット以外の従動スプロケ
ットからは内軸に遊装したカラーと該遊装スプロケット
との間に内向きの固定攪拌翼を設け、又、内軸からは外
向攪拌翼を軸方向所定段数複段に設け、該内向き固定攪
拌翼と外向き攪拌翼とは軸方向所定段数複段に設けられ
て相互に干渉しないようにされ、又、最外列の回転シャ
フトの間の回転シャフトに於ては内軸のみが延設されて
内軸から外向きに攪拌翼が所定段数複段に設けられると
共に、該内軸に遊装したカラーには他の固定攪拌翼が同
様軸方向所定数複段設けられ、その先端にもスプロケッ
トが固定されて回転ケーシングと係合随伴回転するよう
にされ、したがって、削孔に際しては該回転ケーシング
がその下側縁部分に設けたビットにより楕円形状の削孔
を地盤中に掘削し、その間、内側の各回転シャフトの所
定数複段の攪拌翼が侵入する土壌を壊砕裂断し、又、回
転するエンドレスタイプのケーシングの内側に設けた壊
砕兼改良翼が突設されて該回転シャフトに設けられた攪
拌翼と干渉しないようにされながらも回転シャフトの固
定攪拌翼の回転軌跡がカバー出来ないケーシング内の土
壌を壊砕，裂断し、所定深度からの引き上げプロセスに
おいては上述同様の土壌に対する壊砕裂断が行われ、併
せて、回転シャフトの内軸に設けられたノズルからバッ
チャープラントよりのセメントミルク等の固化材をスイ
ーベルジョイントを介し送給し、土壌に対し噴射して両
者が混合攪拌分散されて改良土を形成し、各回転シャフ
トの固定攪拌翼によるオーバーラップ部を有する、又、
ケーシングの壊砕兼改良翼による断面楕円形状の改良土
が形成されて経時的に凝固し、確実に一体的な断面楕円
形状のソイルセメントコラム等の地中構造物が形成さ
れ、１サイクルの施工後は台車を横方向にシフトさせ、
次段の地中構造物と前段の地中構造物がオーバーラップ
部を介し一体的に所定サイズで構築され、又、その間送
給される固化材が削孔外に逸散することがないようにさ
れ、削孔の肌荒れや孔崩れ等がなく、地下水浸入等がな
いようにした技術的手段を講じたものである。SUMMARY OF THE INVENTION In order to solve the above problems, the structure of the invention of the present application, which is based on the above-mentioned object, is intended to solve the above-mentioned problems. A ground structure such as a foundation pile of a structure or each construction is drilled, and a solidifying material such as cement milk is sprayed into the drilled hole to stir the mixture to obtain a uniform dispersed state. When solidifying over time, a truck of a crawler type or the like is carried into the predetermined ground area, and an endless section having an elliptical cross-section or the like is attached to the outer shaft of the outermost row of the rotary shafts in which a predetermined number of laterally connected plural rows are arranged in the leader of the cart. A rotary casing of a type is rotatably provided by a sprocket fixed via a stirring blade, and a driven sprocket other than the drive sprocket is provided with an inwardly fixed sprocket between the collar mounted on the inner shaft and the idle sprocket. Stirrer blades are provided, and outward stirrer blades are provided in a predetermined number of stages in the axial direction from the inner shaft, and the inward fixed stirrer blades and outward stirrer blades are provided in a predetermined number of stages in the axial direction and interfere with each other. In the rotating shafts between the outermost row rotating shafts, only the inner shaft is extended so that the stirring blades are provided outward from the inner shaft in a predetermined number of stages, and Similarly, a fixed number of other fixed stirring blades are provided in the axial direction in the collar that is loosely mounted on the shaft, and a sprocket is fixed to the tip of the collar to rotate with the rotating casing. The rotary casing excavates an elliptical hole in the ground with a bit provided at the lower edge of the rotary casing, and during that time, a predetermined number of multiple-stage stirring blades on each inner rotary shaft crush and smash the soil. Endless type casing that disconnects and rotates The crushing / improving blades provided inside are projected so as not to interfere with the stirring blades provided on the rotary shaft, but the rotation locus of the fixed stirring blades on the rotary shaft cannot be covered. In the process of crushing, breaking, and pulling up from a predetermined depth, the same crushing and breaking of soil is performed as described above, and at the same time, from the nozzle provided on the inner shaft of the rotating shaft, cement milk from the batcher plant The solidifying material is fed through a swivel joint and sprayed onto the soil to mix and stir the two to form improved soil, which has an overlapping portion with fixed stirring blades of each rotating shaft,
The soil that has an elliptical cross section is formed by the crushing and improving blades of the casing and solidifies over time, surely forming an integrated underground structure such as a soil cement column with an elliptical cross section. After that, shift the cart horizontally,
The underground structure of the next stage and the underground structure of the previous stage are integrally constructed with a predetermined size through the overlap part, and the solidified material fed during that time does not escape outside the drilling hole. Therefore, the technical measures were taken to prevent the roughening of the drilled hole, the collapse of the hole, and the intrusion of groundwater.
【０００９】[0009]
【実施例】次に、この出願の発明の１実施例を図面に基
づいて説明すれば以下の通りである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following will describe one embodiment of the invention of this application with reference to the drawings.
【００１０】尚、図８以下と同一態様部分は同一符号を
用いて説明するものとする。It should be noted that parts that are the same as those in FIG. 8 and subsequent figures will be described using the same symbols.
【００１１】図３に示す態様に於て、１４はこの出願の
発明の要旨を成す土木施工用多軸攪拌装置であり、当該
実施例は図９に示す様に、断面楕円形状の地中杭３''を
その内部に３本のコア１' ，１' ，１' を相互に相隣る
オーバーラップ部２' ，２'を有して全体的に一体的に
連結されている地中杭を形成する態様であり、したがっ
て、削孔２４もまた楕円形状に形成されるものである。In the embodiment shown in FIG. 3, reference numeral 14 is a multi-axis stirring device for civil engineering construction, which constitutes the subject matter of the invention of the present application, and this embodiment shows an underground pile having an elliptical cross section as shown in FIG. An underground pile in which 3 ″ is integrally connected as a whole with three cores 1 ′, 1 ′ and 1 ′ having overlapping portions 2 ′ and 2 ′ adjacent to each other. Therefore, the drilled hole 24 is also formed in an elliptical shape.
【００１２】而して、該土木施工用多軸攪拌装置１４は
所定の軟弱地盤１５の施工部位に搬入されたクローラタ
イプの台車１６に立設されたリーダー１８にフレーム１
９を介し上部にスイーベルジョイント２０を有し、その
下部にギヤ式の回転駆動装置２２を介し横向きに３本連
装配列された回転シャフト２１，２１が内部に適宜のベ
アリングを有するタイリンク２１' ，２１' …により横
間隔を常に一定に保持されて下延され、適宜の排土装置
２３を介し削孔２４にオーガー２５を挿入するようにさ
れ、該オーガー２５の回転シャフト２１の先端にはこの
出願の発明の要部の中心を成す地中ミキサー２６が次述
する如く設けられて削孔２４の掘削、及び、改良土５４
を形成するようにされている。Thus, the multi-axis stirring device 14 for civil engineering works is mounted on a leader 18 mounted on a crawler type carriage 16 which has been carried into a predetermined soft ground 15 construction site.
A tie link 21 'having a swivel joint 20 in the upper part through 9 and three rotary shafts 21 and 21 arranged side by side through a gear-type rotary drive device 22 in the lower part thereof and having an appropriate bearing therein. 21 '... The lateral spacing is always kept constant and the downward extension is performed. An auger 25 is inserted into the drilling hole 24 via an appropriate earth removing device 23. The underground mixer 26, which forms the center of the essential part of the invention of the application, is provided as described below to excavate the hole 24 and to improve the soil 54.
Are formed.
【００１３】尚、５４' は排土装置２３から排出される
余剰排土であり、削孔２４を掘削された土壌に固化材の
セメントミルク６３を併設するバッチャープラント６０
からホース６２を介しスイーベルジョイント２０から回
転シャフト２１の内軸２８の送給通路２８' から送給さ
れノズル４３から噴射される量の分だけ一種のオーバー
フロー処理がなされるようにされているものである。Reference numeral 54 'denotes excess soil discharged from the soil discharging device 23, which is a batcher plant 60 in which cement milk 63, which is a solidifying material, is added to soil excavated in the hole 24.
From the swivel joint 20 via the hose 62 to the feed passage 28 ′ of the inner shaft 28 of the rotary shaft 21 and a kind of overflow processing is performed by the amount of the fuel injected from the nozzle 43. is there.
【００１４】尚、バッチャープラント６０からの固化材
のセメントミルク６３はホース６３を介してスイーベル
ジョイント２０に送給されるプロセスにおいて流量計６
１を通過し設計量の供給が行われるように所定に管理さ
れる。In the process in which the cement milk 63 as the solidifying material from the batcher plant 60 is fed to the swivel joint 20 via the hose 63, the flow meter 6
It is managed in a predetermined manner so that the design quantity is supplied after passing through 1.
【００１５】而して、この出願の発明において、回転シ
ャフト２１，２１…は３本示されているが（設計的には
５本，７本等適宜に本数を連装配列することは採用出来
るものであり、好ましい設計としては奇数基が良い）、
図１，図２に示す様に、最外列の回転シャフト２１，２
１（当該実施例においては１番目と３番目の回転シャフ
ト２１，２１）は上側から下側まで固化材のセメントミ
ルク６３を送給する通路２８' を内部に有する内軸２８
に所定サイズのリング状間隙を介し外軸２７が外挿さ
れ、図６に示すギヤ式の回転駆動装置２２のモータ２９
の出力軸３０からギヤ３１，３２，３３を介して内軸２
８に一方方向の回転を与えると共に、軸３４、ギヤ３
５，３６，３７を介し外軸２７にはそれと逆方向の回転
を与えるようにされ、中央の内軸２８には該両側の回転
シャフト２１，２１の各内軸２８と同様に同方向の回転
を与えるようにされている。In the invention of this application, three rotary shafts 21, 21, ... Are shown (5 or 7, for design purposes, it is possible to adopt an appropriate number of rotary shafts, such as 5, 7). And an odd group is a good design),
As shown in FIGS. 1 and 2, the outermost row of rotating shafts 21 and 2
1 (in the embodiment, the first and third rotating shafts 21 and 21) is an inner shaft 28 having therein a passage 28 'for feeding the cement milk 63 of the solidifying material from the upper side to the lower side.
The outer shaft 27 is externally inserted through a ring-shaped gap of a predetermined size into the motor 29 of the gear type rotary drive device 22 shown in FIG.
From the output shaft 30 of the inner shaft 2 through the gears 31, 32, 33
8 in one direction, the shaft 34, the gear 3
The outer shaft 27 is made to rotate in the opposite direction via 5, 36, 37, and the central inner shaft 28 is rotated in the same direction as the inner shafts 28 of the rotary shafts 21, 21 on both sides. Is to give.
【００１６】したがって、中央の回転シャフト２１にあ
っては外軸２７は設けられず、内軸２８のみが延設され
ていることになる。Therefore, the outer shaft 27 is not provided in the central rotary shaft 21, but only the inner shaft 28 is extended.
【００１７】そして、図２に示す様に、最外側の回転シ
ャフト２１の外軸２７には最上段の攪拌翼３８が固設さ
れ、その下側の内軸２８に他の攪拌翼４１が設けられ、
両攪拌翼３８，４１は交互にカラー４０，４０…を介し
軸方向所定段数の複段配置とされており、最下段の攪拌
翼３８''にはビット４４が設けられ、更に、その最下端
の壊砕兼攪拌翼４２にもまたビット４４が設けられてい
る。As shown in FIG. 2, the outermost shaft 27 of the outermost rotary shaft 21 is fixedly provided with the uppermost stirring blade 38, and the lower inner shaft 28 is provided with another stirring blade 41. The
Both agitating blades 38, 41 are alternately arranged in a multi-stage arrangement of a predetermined number of stages in the axial direction via collars 40, 40 ..., A bit 44 is provided on the agitating blade 38 ″ at the lowermost stage, and further, a lowermost end thereof. The crushing / stirring blade 42 of FIG.
【００１８】又、中央の回転シャフト２１の内軸２８に
はその両側の回転シャフト２１の攪拌翼３８，４１…に
干渉しない上下方向で同じく所定段数の攪拌翼４１，４
１…が設けられると共に下端には同じくビット４４付の
壊砕攪拌翼４２が設けられている。Further, the inner shaft 28 of the central rotating shaft 21 has a predetermined number of stirring blades 41, 4 in the vertical direction which do not interfere with the stirring blades 38, 41 of the rotating shafts 21 on both sides thereof.
1 are provided, and a crushing stirring blade 42 with a bit 44 is also provided at the lower end.
【００１９】又、いずれの回転シャフト２１に於ても、
内軸２８にはその内部の固化材送給通路２８' に連通す
るノズル４３，４３，…が開口して設けられている。Further, in any of the rotary shafts 21,
The inner shaft 28 is provided with nozzles 43, 43, ... Opened to communicate with the solidified material feed passage 28 'therein.
【００２０】而して、地中ミキサー２６の楕円形の可撓
性を有するエンドレスタイプのケーシング４５は図４に
示す様な長手方向に凹部４６と突出部４７のスパイク状
の縁を有するジクザク状のユニットのケーシングピース
４５ 'を所定多数ピン４８を介し相互に横方向屈曲自在
に連結されており、したがって、反復する施工により摩
耗や損耗が生じた場合には適宜に地上で各ケーシングピ
ース４５ 'が交換修理自在にされている。Thus, the elliptical flexible endless type casing 45 of the underground mixer 26 has a zigzag shape having spike-like edges of a recess 46 and a protrusion 47 in the longitudinal direction as shown in FIG. The casing pieces 45 ′ of each unit are connected to each other in a laterally bendable manner via a predetermined number of pins 48. Therefore, when wear or damage occurs due to repeated construction, each casing piece 45 ′ is appropriately grounded. Can be freely exchanged and repaired.
【００２１】而して、該エンドレスタイプケーシング４
５に対しては図１，図２に示す様に、最外側の（両側
の）回転シャフト２１，２１の外軸２７に固設した最上
段の攪拌翼３８の外端に固設されたスプロケット３９の
所定等間隔で形成されたノッチ３９' が各ケーシングピ
ース４５ 'のピン４８に噛み合って回転駆動力を伝達す
ることが出来るようにされ、又、他の攪拌翼３８' ，３
８''に対してはその外端に取り付けられたアイドルスプ
ロケット３９' を介して内軸２８に対し遊転することが
出来るようにされており、かかるアイドルスプロケット
３９' の機構は中央の回転シャフト２１についける攪拌
翼３８' についてもまた同様である。Thus, the endless type casing 4
As shown in FIGS. 1 and 2, the sprocket fixed to the outer end of the uppermost stage stirring blade 38 fixed to the outer shaft 27 of the outermost (both sides) rotary shafts 21 and 21 is shown in FIG. Notches 39 'formed at predetermined intervals of 39 mesh with the pins 48 of each casing piece 45' to transmit the rotational driving force, and the other stirring blades 38 ', 3'
For the 8 '', the idle sprocket 39 'is attached to the outer end of the idle sprocket 39' so that the idle shaft can freely rotate with respect to the inner shaft 28. The same applies to the stirring blade 38 'attached to 21.
【００２２】したがって、全ての回転シャフト２１の内
軸２８に設けられている攪拌翼４１，４１ '…は該内軸
２８と共に、エンドレスタイプのケーシング４５の回転
とは関係なく、該内軸２８により強制的に回転され、攪
拌翼３８，３８' …と攪拌翼４１，４１…とは互いに逆
方向に回転され、又、最外側と中央の回転シャフト２
１，２１ 'は互いに逆回転されるようにされ、その駆動
は図６に示すギヤ式の回転駆動装置２に示す通りに所定
に行われ、その回転比は各ギヤ３１〜３７によって適宜
に設計されるものである。Therefore, the stirring blades 41, 41 ′ provided on the inner shafts 28 of all of the rotary shafts 21 are, together with the inner shafts 28, independent of the rotation of the endless type casing 45. The agitating blades 38, 38 '... and the agitating blades 41, 41 ... are forced to rotate in opposite directions, and the outermost and central rotating shafts 2 are rotated.
1, 21 ′ are rotated in reverse to each other, and are driven in a predetermined manner as shown in the gear type rotary driving device 2 shown in FIG. 6, and the rotation ratio is appropriately designed by each gear 31 to 37. It is what is done.
【００２３】尚、エンドレスタイプのケーシング４５の
下縁部、及び、上縁部には所定間隔で工業用ダイヤモン
ド等から成るビット４４，４４…が固設され、削孔２４
の形成がスムーズに行われ、又、該削孔２４の内壁が滑
かに形成されるようにされ、孔崩れや肌荒れが生じない
ようにされている。Bits 44, 44 ... Made of industrial diamond or the like are fixedly provided at predetermined intervals at the lower edge and the upper edge of the endless type casing 45, and the holes 24 are drilled.
Is smoothly formed, and the inner wall of the drilled hole 24 is formed smoothly so that collapse of the hole and roughening of the skin do not occur.
【００２４】したがって、地中ミキサー２６のエンドレ
スタイプのケーシング４５と最上段の攪拌翼３８、並び
に、そのスプロケット３９は一体的に駆動され、又、他
の攪拌翼３８' ，３８''は該エンドレスタイプのケーシ
ング４５を介しスプロケット３９' により随伴的に回転
されるようにされている。Therefore, the endless type casing 45 of the underground mixer 26, the uppermost stirring blade 38, and its sprocket 39 are integrally driven, and the other stirring blades 38 'and 38''are the endless type. It is adapted to be rotated by a sprocket 39 'through a casing 45 of the type.
【００２５】そして、エンドレスタイプのケーシング４
５の上縁部の下側には最上段の攪拌翼３８に干渉しない
位置姿勢で土壌に対する壊砕兼用の攪拌翼４９，４９…
が所定間隔でラグ状に内向き突設固定されており、地中
ミキサー２６の下降プロセス、及び、昇降プロセスにお
いて、各回転シャフト２１の攪拌翼３８，３８' ，３８
''、及び、攪拌翼４１，４１…の相互にオーバーラップ
する図７に示す回転軌跡５１，５１、及び、エンドレス
タイプのケーシング４５の描く軌跡５２のカバーしきれ
ないクロスハッチング部位５０，５０の土壌の壊砕，裂
断を補助的に行うことが出来るようにされている。The endless type casing 4
Below the upper edge of 5, the stirring blades 49, 49 ...
Are fixed inward in a lug shape at predetermined intervals, and in the descending process and the elevating process of the underground mixer 26, the stirring blades 38, 38 ', 38 of each rotary shaft 21 are
'' And the rotation loci 51, 51 shown in FIG. 7 that overlap each other with the stirring blades 41, 41 ... And the crosshatched portions 50, 50 of the locus 52 drawn by the endless type casing 45 that cannot be completely covered. It is designed to be able to assist in crushing and breaking soil.
【００２６】尚、該壊砕兼攪拌翼４９についてはケーシ
ング４５の上縁部下位のみならず、どの部位に於ても設
けることは設計変更の範囲である。The crushing / stirring blade 49 may be provided not only in the lower portion of the upper edge portion of the casing 45 but also in any other portion of the design change.
【００２７】上述構成において、所定の軟弱地盤改良部
位１５に台車１６を搬入セットし、リーダー１８に沿っ
てスイーベルジョイント２０、駆動装置２２と共に、排
土装置２３を所定にセットし、オーガー２５付の各回転
シャフト２１を立設して削孔２４に臨ませ、回転駆動装
置２２を作動させると共に、図示しないウインチ等によ
り下向き静圧を付与し、ビット４４付の攪拌翼４２、及
び、４２' と共に地中ミキサー２６のエンドレスタイプ
のケーシング４５を回転させ（該ケーシング４５は最上
段の攪拌翼３８のスプロケット３９により強制回転駆動
される）てビット４４の掘削作用を介し削孔２４を図５
に示す様に、形成しながら、各攪拌翼３８，３８' ，４
１，４１…により該削孔２４内に相対侵入する土壌を壊
砕裂断して断面楕円形状の該削孔２４を形成してゆき、
内部で該土壌を均一分散状態に混合攪拌していく。In the above-mentioned structure, the carriage 16 is loaded and set on a predetermined soft ground improvement portion 15, and the soil discharging device 23 is set along with the swivel joint 20 and the driving device 22 along the leader 18, and the auger 25 is attached. Each rotary shaft 21 is erected to face the drilled hole 24, the rotary drive device 22 is operated, and a downward static pressure is applied by a winch (not shown) or the like, together with the stirring blades 42 with a bit 44, and 42 '. The endless type casing 45 of the underground mixer 26 is rotated (the casing 45 is forcibly rotationally driven by the sprocket 39 of the uppermost stirring blade 38), and the boring hole 24 is formed through the excavating action of the bit 44.
As shown in Fig. 4, each stirring blade 38, 38 ', 4 is formed while being formed.
1, 41 ... Crushes and cuts the soil that relatively penetrates into the drilled hole 24 to form the drilled hole 24 having an elliptical cross section.
Inside, the soil is mixed and stirred in a uniformly dispersed state.
【００２８】そして、その間の土壌の壊砕、裂断、分散
は各攪拌翼３８，３８' ，４１，４１…の相互逆回転に
より有効に行われ、図７に示すオーバラップ部５３が形
成され、又、壊砕兼用の攪拌翼４９，４９…の作用によ
り当該図７に示すカバー出来ないクロスハッチング部位
５０に対して確実に混合、攪拌、分散のカバーが行えて
断面楕円形状の削孔２４内の土壌は設計通りに全領域に
於て壊砕攪拌混合分散が行われ、その間、該削孔２４内
の混合攪拌された土壌はケーシング４５の回転軌跡５２
外へ逸散されないようにされ、したがって、該削孔２４
の肌荒れ等による孔崩れがなく、該の混合攪拌された土
壌はケーシング４５の回転軌跡５０外く、その限り地下
水の削孔２４内への浸入等も阻止される。Crushing, breaking, and dispersion of the soil during that time are effectively performed by mutually reciprocal rotation of the respective stirring blades 38, 38 ', 41, 41, ..., Forming the overlap portion 53 shown in FIG. Further, due to the action of the stirring blades 49, 49 ... Which also serve as crushers, the crosshatching portion 50 which cannot be covered as shown in FIG. The soil inside is crushed, stirred, mixed, and dispersed in the entire region as designed, and the mixed and stirred soil in the drilling hole 24 is rotated 52 of the casing 45 during that time.
It is prevented from escaping out and therefore the drilling hole 24
There is no hole collapse due to rough skin, and the mixed and agitated soil is out of the rotation locus 50 of the casing 45, and infiltration of groundwater into the drilled hole 24 is prevented as long as that.
【００２９】そして、削孔２４の形成が所定深度に達し
た後は台車１６の操縦席の図示しない操作パネルの操作
によりウインチ、及び、回転駆動装置２２が切り換えら
れて回転シャフト２１は上昇工程に移り、次述する固化
材２９の送給量に見合うオーバー量は排土装置２３から
廃土５４' として排出され、又、バッチャープラント６
０からの固化材のセメントミルク６３はホース６２を介
しスイーベルジョイント２０から各回転シャフト２１の
内軸２８内の送給通路２８' 内に圧送され、ノズル４３
から噴射されて削孔２４内の土壌中に攪拌混合され、可
及的に均一に分散され経時的に固化され、断面楕円形状
の図８に示すソイルセメントコラム３''に形成されてい
く。After the formation of the drilled holes 24 reaches a predetermined depth, the winch and the rotary drive device 22 are switched by the operation of an operation panel (not shown) on the cockpit of the truck 16 to move the rotary shaft 21 to the ascending process. The excess amount commensurate with the feeding amount of the solidifying material 29 described below is discharged from the soil discharging device 23 as waste soil 54 ', and the batcher plant 6
The solidified cement milk 63 from 0 is pressure-fed from the swivel joint 20 into the feed passage 28 ′ in the inner shaft 28 of each rotary shaft 21 via the hose 62, and the nozzle 43
Is injected into the soil in the drilling hole 24 with stirring and mixing, is dispersed as uniformly as possible, and is solidified with time, and is formed into a soil cement column 3 ″ having an elliptical cross section shown in FIG.
【００３０】この間、回転シャフト２１の攪拌翼３８，
３８' ，４１…は外軸２７によりスプロケット３９を介
して直接的に、或いは、回転するエンドレスタイプのケ
ーシング４５に対するスプロケット３９' のアイドル回
転を通しての相対逆回転により当該図８に示すコア１，
１，１' に均一分散攪拌により充分な強度、剛性を有し
固化され、又、その周囲部分も充分な強度，剛性を有し
て楕円形状にソイルセメントコラム３''とされていく。During this time, the stirring blades 38 of the rotary shaft 21,
.. 38 ', 41 ... Directly through the sprocket 39 by the outer shaft 27, or by relative reverse rotation through idle rotation of the sprocket 39' with respect to the rotating endless type casing 45, the core 1 shown in FIG.
1, 1'is solidified with sufficient strength and rigidity by uniform dispersion and stirring, and the surrounding portion is also made into an elliptical soil cement column 3 '' with sufficient strength and rigidity.
【００３１】勿論、このプロセスにおいて、ケーシング
４５の両縁部回りに設けられた壊砕兼攪拌翼４９の補助
的混合攪拌作用も断面楕円形状の改良土５４の形成に充
分プラスし、削孔２４内の全ての領域に於ける改良土５
４の形成に与る。Of course, in this process, the auxiliary mixing and stirring action of the crushing / stirring blades 49 provided around both edges of the casing 45 is sufficiently added to the formation of the improved soil 54 having an elliptical cross section, and the drilling hole 24 is formed. Improved soil in all areas within
Participate in the formation of 4.
【００３２】そして、地中ミキサー２６のアップストロ
ークエンドに達した後は台車１６を１ステップ分側方に
変移させて次の削孔が前段の改良土５４に所定にオーバ
ーラップするようにセットされて施工を反復して所定の
柱列連続地中壁３，３ '等の形成を行っていく。After reaching the up stroke end of the underground mixer 26, the bogie 16 is displaced laterally by one step and the next drilling is set so as to overlap the improved soil 54 in the preceding stage in a predetermined manner. The construction is repeated to form the continuous underground walls 3, 3 ', etc.
【００３３】その結果、地盤１５中には設計通りの柱列
連続地中壁等の地中構造物３，３ 'が充分な強度，剛性
を有し、高い信頼度を得られる状態で構築されていく。As a result, the underground structures 3, 3 ', such as the continuous underground wall of the column as designed, are constructed in the ground 15 with sufficient strength and rigidity and with high reliability. To go.
【００３４】そして、固化材のセメントミルク６３の削
孔２４内の土壌への噴射、及び、それに伴う攪拌混合分
散プロセスにおいても、噴射された固化材６３の周囲に
はケーシング４５がエンドレスタイプに回転して一種の
シールド体をなしているために、固化材６３、及び、そ
の土壌の改良土５４が削孔２４外に逸散したり、固化材
２９分が地下水汚染に与かるこようなことはなく、した
がって、公害問題や環境汚染等の発生しないことにな
り、安全に高能率で施工が行われることになる。In the spraying of the solidifying material cement milk 63 to the soil in the hole 24, and also in the stirring / mixing and dispersing process accompanying it, the casing 45 rotates in an endless type around the sprayed solidifying material 63. And because it forms a kind of shield body, the solidifying material 63 and the improved soil 54 of the soil may be scattered outside the drilling hole 24, or the solidifying material 29 minutes may contribute to groundwater pollution. Therefore, pollution problems and environmental pollution will not occur, and construction can be performed safely and with high efficiency.
【００３５】尚、この出願の発明の実施態様は上述実施
例に限るものでないことは勿論であり、例えば、エンド
レスタイプのケーシング４５の外側にも適宜に壊砕攪拌
翼を延設固定する等種々の態様が採用可能である。Of course, the embodiment of the invention of this application is not limited to the above-mentioned embodiment. For example, various types such as properly extending and fixing the crushing and stirring blades outside the endless type casing 45 are also possible. The mode of can be adopted.
【００３６】[0036]
【発明の効果】以上、この出願の発明によれば、基本的
に地盤中で地中壁や基礎杭の固化材等の地中構造物をソ
イルセメントコラム等として相互オーバーラップを介し
て削孔内にセメントミルク等の固化材を噴射させて土壌
と混合攪拌して改良土とし、経時的に凝固固化させて形
成するに、相互に軌跡がオーバーラップして回転する攪
拌翼を軸方向多段に有する回転シャフトに対し全ての攪
拌翼の軌跡を外側から囲繞してカバーする回転ケーシン
グを断面楕円形状のエンドレスタイプのケーシングと
し、最外側の攪拌翼に設けたスプロケットと共に回転さ
せるようにしたことにより、削孔の壁面が滑かに形成さ
れ、孔崩れや肌荒れ等がなく、地下水の浸入等を防止
し、又、土壌、或いは、該土壌と混合攪拌された固化材
が該ケーシングをシールド体して削孔内に逸散したり等
せず、したがって、固化材は確実に削孔外の土壌と攪拌
されて設計通りの強度，剛性を有するソイルセメントコ
ラム等として凝固固化されてゆき信頼性の高い施工が行
える。As described above, according to the invention of this application, basically, an underground structure such as a solidified material of an underground wall or a foundation pile is drilled as a soil cement column or the like through mutual overlap. Injecting solidifying material such as cement milk into the inside, mixing and stirring with soil to form improved soil, and solidifying and solidifying over time to form, and the stirring blades that rotate with overlapping trajectories are axially multistage By making the rotating casing that surrounds the trajectory of all the stirring blades with respect to the rotating shaft having from the outside an endless type casing having an elliptical cross section, and by rotating it together with the sprocket provided on the outermost stirring blade, Since the wall surface of the drilled hole is formed smoothly, there is no collapse of the hole or rough skin, ingress of groundwater, etc. is prevented, and the soil or the solidifying material mixed and stirred with the soil seals the casing. The solidified material is surely agitated with the soil outside the drilled hole and solidified and solidified as a soil cement column, etc., which has the strength and rigidity as designed. Highly reliable construction is possible.
【００３７】又、エンドレスタイプのケーシングの回転
は回転シャフトの回転のための動力を該攪拌翼のスプロ
ケットを介して伝達され、又、他の攪拌翼には該エンド
レスタイプケーシングにアイドル的に係合する他のスプ
ロケットを介して動力が伝達されるために、動力伝達系
統が物理学的に機構学的に確実に形成され、削孔の形
成、及び、該削孔内の土壌の壊砕裂断、及び、攪拌混
合、分散が有効に行われ公害問題や環境破壊等を生ぜず
に設計通りの地中構造物が得られるという効果がある。The rotation of the endless type casing transmits power for rotation of the rotating shaft through the sprocket of the stirring blade, and the other stirring blades are idlely engaged with the endless type casing. Since the power is transmitted through the other sprocket, the power transmission system is physically and mechanically formed reliably, the formation of the drilling hole and the crushing and breaking of the soil in the drilling hole are performed. In addition, stirring and mixing and dispersion are effectively performed, and there is an effect that an underground structure as designed can be obtained without causing pollution problems and environmental damage.
【００３８】又、エンドレスタイプのケーシングの内面
に土壌に対する、或いは、土壌と固化材の混合土に対す
る壊砕，裂断を行う壊砕兼攪拌翼を突出状に延出するこ
とにより複数の連装配列の攪拌翼相互にオーバーラップ
する回転軌跡ではカバーしきれない部分をもカバーして
壊砕，裂断を行い、改良土の攪拌を行うことにより断面
楕円形の改良土の形成と経時的固化を確実に全領域に於
て均一分散状態で行えるというこれまた高い信頼のおけ
る施工を行うことに寄与することが出来るという効果が
ある。Further, a plurality of arranging arrangements are provided on the inner surface of the endless type casing by projecting out a crushing / stirring blade for crushing and severing the soil or the mixed soil of the soil and the solidifying material. The parts that cannot be completely covered by the rotating trajectories of the stirring blades of the above are crushed and torn, and the improved soil is agitated to form the improved soil with an elliptical cross section and solidify it with time. There is an effect that it can surely be performed in a uniformly dispersed state in all areas, and that it can contribute to performing highly reliable construction.
【００３９】又、エンドレスタイプのケーシングは各ケ
ーシングピースごとのピン係合によるエンドレスタイプ
状のものになされているために、地盤中での作用が複雑
に見えても、地上に引き上げてその損耗に対処すること
が出来、保守点検整備が簡易に行えるという効果もあ
る。Further, since the endless type casing is made into an endless type by the pin engagement of each casing piece, even if the action in the ground looks complicated, it is pulled up to the ground and worn. There is also an effect that it can be dealt with and maintenance and inspection can be performed easily.
【００４０】そして、各回転シャフトに多段に設けられ
る攪拌翼についても削孔掘削中、或いは、土壌と固化材
の混合攪拌中にあってもエンドレスタイプのケーシング
にシールドされていることにより、故障や損傷が生じ難
いという利点がある。The stirring blades provided in multiple stages on each rotary shaft are also shielded by the endless type casing during drilling and excavation, or during mixing and stirring of soil and solidifying material, which may cause malfunction or failure. It has the advantage that damage is less likely to occur.
【００４１】そして、エンドレスタイプのケーシングは
削孔内の土壌や該土壌と固化材の混合攪拌による改良土
に対してシールド体として作用するために削孔外への逸
散を防止し、又、削孔外からの地下水の浸入等をも防止
する作用もなすことが出来るという優れた効果が奏され
る。Since the endless type casing acts as a shield for the soil in the drilling hole and the soil improved by mixing and agitating the soil and the solidifying material, it prevents scattering outside the drilling hole. An excellent effect is achieved in that it can also prevent the intrusion of groundwater from the outside of the hole.
【図１】この出願の発明の１実施例の地中ミキサーの断
面図である。FIG. 1 is a sectional view of an underground mixer according to one embodiment of the invention of this application.
【図２】同、部分切截側面図である。FIG. 2 is a partial cutaway side view of the same.
【図３】同、装置プラントの全体概略部分断面側面図で
ある。FIG. 3 is an overall schematic partial cross-sectional side view of the same equipment plant.
【図４】地中ミキサーのエンドレスタイプケーシングの
要部構造模式斜視図である。FIG. 4 is a schematic perspective view of a main part structure of an endless type casing of an underground mixer.
【図５】同、要部模式拡大正面図である。FIG. 5 is a schematic enlarged front view of the main part of the same.
【図６】回転駆動部の機構概略斜視図である。FIG. 6 is a schematic perspective view of the mechanism of the rotation drive unit.
【図７】地中ミキサーのエンドレスタイプケーシング、
及び、攪拌翼の回転軌跡の模式平面図である。FIG. 7: Endless type casing of underground mixer,
FIG. 3 is a schematic plan view of a rotation locus of a stirring blade.
【図８】地中構造物のソイルセメントコラムの連続構造
体の模式断面図である。FIG. 8 is a schematic cross-sectional view of a continuous structure of a soil cement column of an underground structure.
【図１０】他の地中構造物の一体配列模式断面図であ
る。FIG. 10 is a schematic cross-sectional view of another underground structure integrally arranged.
【図１１】従来技術に基づく地中ミキサーの部分断面斜
視図である。FIG. 11 is a partial sectional perspective view of an underground mixer according to the related art.
１６ 台車 １８ リーダー ２１ 回転シャフト ６３ 固化材 ２８' 通路 ２８ 内軸 ２７ 外軸 ４３ ノズル ３８，３８' ，３８''，４１ 攪拌翼 ５１ 攪拌翼の回転軌跡 ４５ エンドレスタイプのケーシング １４ 土木施工用多軸攪拌装置 ３９，３９' スプロケット ４４ ビット ３１〜３７ 逆回転機構 ４９ 壊砕兼攪拌翼 16 Cart 18 Leader 21 Rotating shaft 63 Solidifying material 28 'Passage 28 Inner shaft 27 Outer shaft 43 Nozzle 38, 38', 38 '', 41 Stirring blade 51 Rotation locus of stirring blade 45 Endless type casing 14 Multi-axis for civil engineering Stirring device 39, 39 'Sprocket 44 bits 31-37 Reverse rotation mechanism 49 Crushing and stirring blade
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年７月２３日[Submission date] July 23, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Name of item to be corrected] Brief description of the drawing
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図面の簡単な説明】[Brief description of drawings]
【図１】この出願の発明の１実施例の地中ミキサーの上
面図である。FIG. 1 is a top view of an underground mixer of one embodiment of the invention of this application.
【図２】同、部分切截側面図である。FIG. 2 is a partial cutaway side view of the same.
【図３】同、装置プラントの全体概略部分断面側面図で
ある。FIG. 3 is an overall schematic partial cross-sectional side view of the same equipment plant.
【図４】地中ミキサーのエンドレスタイプケーシングの
要部構造模式斜視図である。FIG. 4 is a schematic perspective view of a main part structure of an endless type casing of an underground mixer.
【図５】同、要部模式拡大正面図である。FIG. 5 is a schematic enlarged front view of the main part of the same.
【図６】回転駆動部の機構概略斜視図である。FIG. 6 is a schematic perspective view of the mechanism of the rotation drive unit.
【図７】地中ミキサーのエンドレスタイプケーシング、
及び、攪拌翼の回転軌跡の模式平面図である。FIG. 7: Endless type casing of underground mixer,
FIG. 3 is a schematic plan view of a rotation locus of a stirring blade.
【図８】地中構造物のソイルセメントコラムの連続構造
体の模式断面図である。FIG. 8 is a schematic cross-sectional view of a continuous structure of a soil cement column of an underground structure.
【図９】地中構造物の１態様の模式断面図である。FIG. 9 is a schematic cross-sectional view of one aspect of an underground structure.
【図１０】他の地中構造物の一体配列模式断面図であ
る。FIG. 10 is a schematic cross-sectional view of another underground structure integrally arranged.
【図１１】従来技術に基づく地中ミキサーの部分断面斜
視図である。FIG. 11 is a partial sectional perspective view of an underground mixer according to the related art.
【符号の説明】 １６ 台車 １８ リーダー ２１ 回転シャフト ６３ 固化材 ２８′ 通路 ２８ 内軸 ２７ 外軸 ４３ ノズル ３８，３８′，３８″，４１ 攪拌翼 ５１ 攪拌翼の回転軌跡 ４５ エンドレスタイプのケーシング １４ 土木施工用多軸攪拌装置 ３９，３９′ スプロケット ４４ ビット ３１〜３７ 逆回転機構 ４９ 壊砕兼攪拌翼[Explanation of Codes] 16 Cart 18 Leader 21 Rotating Shaft 63 Solidifying Material 28 'Passage 28 Inner Shaft 27 Outer Shaft 43 Nozzle 38, 38', 38 ", 41 Stirring Blade 51 Rotating Trajectory of Stirring Blade 45 Endless Type Casing 14 Civil Engineering Multi-axis stirring device for construction 39, 39 'Sprocket 44 bits 31-37 Reverse rotation mechanism 49 Crushing and stirring blade
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】全図[Correction target item name] All drawings
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図１】 [Figure 1]
【図２】 [Fig. 2]
【図３】 [Figure 3]
【図４】 [Figure 4]
【図６】 [Figure 6]
【図７】 [Figure 7]
【図５】 [Figure 5]
【図８】 [Figure 8]
【図９】 [Figure 9]
【図１０】 [Figure 10]
【図１１】 FIG. 11
───────────────────────────────────────────────────── フロントページの続き (71)出願人 000149206 株式会社大阪防水建設社 大阪府大阪市天王寺区餌差町７番６号 (71)出願人 000140292 株式会社奥村組 大阪府大阪市阿倍野区松崎町２丁目２番２ 号 (71)出願人 000205328 大阪セメント株式会社 大阪府大阪市北区堂島浜１丁目４番４号 (71)出願人 000146928 株式会社森本組 大阪府大阪市天王寺区夕陽丘町４番11号 (71)出願人 000140694 株式会社加藤建設 愛知県海部郡蟹江町大字蟹江新田字下市場 19番地の１ (71)出願人 000148346 株式会社銭高組 大阪府大阪市西区西本町２丁目２番11号 (71)出願人 390036515 株式会社鴻池組 大阪府大阪市此花区伝法４丁目３番55号 (71)出願人 390036504 日特建設株式会社 東京都中央区銀座８丁目14番14号 (71)出願人 000004123 日本鋼管株式会社 東京都千代田区丸の内一丁目１番２号 (72)発明者 大日向 正明 大阪市天王寺区餌差町７番６号 株式会社 大阪防水建設社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 000149206 Osaka Waterproof Construction Co., Ltd. 7-6, Eizashi-cho, Tennoji-ku, Osaka-shi, Osaka (71) Applicant 000140292 Okumura-gumi Co., Ltd. 2, Matsuzaki-cho, Abeno-ku, Osaka-shi, Osaka 2-2 (71) Applicant 000205328 Osaka Cement Co., Ltd. 1-4-4 Dojimahama, Kita-ku, Osaka-shi, Osaka (71) Applicant 000146928 Morimoto Gumi Co., Ltd. 4-11 Yuhigaoka-cho, Tennoji-ku, Osaka-shi, Osaka ( 71) Applicant 000140694 Kato Construction Co., Ltd. Kanie-cho, Kaifu-gun, Aichi Large area, Kanie, Shindenji, 19-1 (71) Applicant 000148346 Zenkougumi Co., Ltd. 2-2-1 Nishihonmachi, Nishi-ku, Osaka-shi, Osaka (71) ) Applicant 390036515 Konoikegumi Co., Ltd. Konohana Ward, Osaka City, Osaka Prefecture 4-55-3 (71) Applicant 390036504 Nittoku Construction Co., Ltd. Tokyo 8-14-14, Ginza, Chuo-ku (71) Applicant 000004123 Nippon Steel Tube Co., Ltd. 1-2-1, Marunouchi, Chiyoda-ku, Tokyo (72) Inventor Masaaki Ohinata 7-6, Eizashi-cho, Tennoji-ku, Osaka Osaka, Japan Waterproof construction in-house
Claims (8)
先部に噴射ノズルを有する内軸と該内軸に遊装する外軸
とから成る複数の回転シャフトが横方向に併設され各内
軸の先部に攪拌翼が軸方向複段に連装され該攪拌翼の回
転軌跡の外側に回転ケーシングが外軸に連結されて配設
されている土木施工用多軸改良装置において、上記複数
の回転シャフトの少くとも最両側の回転シャフトにエン
ドレスタイプの可撓性のケーシングが連結されているこ
とを特徴とする土木施工用多軸攪拌装置。1. A trolley leader has a solidifying material supply passage,
A plurality of rotating shafts each having an inner shaft having an injection nozzle at the front and an outer shaft mounted on the inner shaft are provided side by side in the lateral direction, and stirring blades are connected to the front of each inner shaft in a multi-stage axial direction. In a multi-axis improvement device for civil engineering, in which a rotating casing is arranged outside the rotation locus of a stirring blade and connected to an outer shaft, an endless type flexible shaft is provided on at least the outermost rotating shafts of the plurality of rotating shafts. A multi-axis stirring device for civil engineering construction, characterized in that a flexible casing is connected.
フトが内軸のみから成ることを特徴とする特許請求の範
囲第１項記載の土木施工用多軸攪拌装置。2. The multiaxial stirring device for civil engineering according to claim 1, wherein the rotary shaft between the outermost rotary casings is composed of only an inner shaft.
スプロケットが固設されていることを特徴とする特許請
求の範囲第１項記載の土木施工用多軸攪拌装置。3. The multi-shaft stirring device for civil engineering according to claim 1, characterized in that a sprocket that engages with the rotary casing is fixed to the stirring blade.
遊装された他の攪拌翼に固設されたスプロケットが係合
されていることを特徴とする特許請求の範囲第１項記載
の土木施工用多軸攪拌装置。4. The civil engineering work according to claim 1, wherein the rotating casing is engaged with a sprocket fixed to another stirring blade mounted on each rotating shaft. Multi-axis stirring device.
固設されていることを特徴とする特許請求の範囲第１項
記載の土木施工用多軸攪拌装置。5. The multiaxial stirring device for civil engineering according to claim 1, characterized in that a bit is fixedly provided on at least a lower edge of the casing.
構に連係されていることを特徴とする特許請求の範囲第
１項記載の土木施工用多軸攪拌装置。6. The multiaxial stirring device for civil engineering according to claim 1, wherein an inner shaft and an outer shaft of the rotary shaft are linked to a reverse rotation mechanism.
壊砕兼攪拌翼が突設されていることを特徴とする特許請
求の範囲第１項記載の土木施工用多軸攪拌装置。7. The multi-shaft stirring device for civil engineering according to claim 1, wherein a crushing and stirring blade for soil is provided in a protruding manner inside the rotary casing.
の回転軌跡内に延設されていることを特徴とする特許請
求の範囲第７項記載の土木施工用多軸攪拌装置。8. The multiaxial stirring device for civil engineering according to claim 7, wherein the crushing / stirring blade is extended within a rotation locus of the stirring blade of the rotary shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35734692A JPH06193059A (en) | 1992-12-24 | 1992-12-24 | Multiple spindle agitation device for civil engineering work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35734692A JPH06193059A (en) | 1992-12-24 | 1992-12-24 | Multiple spindle agitation device for civil engineering work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06193059A true JPH06193059A (en) | 1994-07-12 |
Family
ID=18453661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35734692A Withdrawn JPH06193059A (en) | 1992-12-24 | 1992-12-24 | Multiple spindle agitation device for civil engineering work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06193059A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005350976A (en) * | 2004-06-11 | 2005-12-22 | Dowa Mining Co Ltd | Construction device and construction method for underground water purifying wall |
| KR100758034B1 (en) * | 2006-09-06 | 2007-09-19 | (주)씨트웰 | Flocculator having rotary paddle |
-
1992
- 1992-12-24 JP JP35734692A patent/JPH06193059A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005350976A (en) * | 2004-06-11 | 2005-12-22 | Dowa Mining Co Ltd | Construction device and construction method for underground water purifying wall |
| JP4625655B2 (en) * | 2004-06-11 | 2011-02-02 | Ｄｏｗａホールディングス株式会社 | Groundwater purification wall construction equipment |
| KR100758034B1 (en) * | 2006-09-06 | 2007-09-19 | (주)씨트웰 | Flocculator having rotary paddle |
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Legal Events
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| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000307 |