JPH0515877B2 - - Google Patents

Info

Publication number
JPH0515877B2
JPH0515877B2 JP63209884A JP20988488A JPH0515877B2 JP H0515877 B2 JPH0515877 B2 JP H0515877B2 JP 63209884 A JP63209884 A JP 63209884A JP 20988488 A JP20988488 A JP 20988488A JP H0515877 B2 JPH0515877 B2 JP H0515877B2
Authority
JP
Japan
Prior art keywords
column
excavation
anchor
arm
attached
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP63209884A
Other languages
Japanese (ja)
Other versions
JPH0258691A (en
Inventor
Kazumi Uchida
Toshihiko Yamazaki
Junichi Asano
Kazuo Yamada
Juzo Morinaga
Yoshizo Bando
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kansai Electric Power Co Inc
Original Assignee
Kansai Denryoku KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kansai Denryoku KK filed Critical Kansai Denryoku KK
Priority to JP20988488A priority Critical patent/JPH0258691A/en
Publication of JPH0258691A publication Critical patent/JPH0258691A/en
Publication of JPH0515877B2 publication Critical patent/JPH0515877B2/ja
Granted legal-status Critical Current

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  • Foundations (AREA)
  • Earth Drilling (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、深礎、拡底および深礎拡底掘削機
械及び工法、例えば超高圧送電線鉄塔基礎工事や
その他の土木作業において、柱体部(縦穴)とこ
の柱体部の下端周囲に拡底部を掘削するための機
械及びこの機械を用いて施工する工法に関するも
のである。
[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to deep foundations, bottom expansion, and deep foundation expansion excavation machines and construction methods, such as ultra-high voltage power transmission line tower foundation work and other civil engineering work. This article relates to a machine for excavating a vertical hole (vertical hole) and an enlarged bottom part around the lower end of the column body, and a construction method using this machine.

〔従来の技術〕[Conventional technology]

従来、上記した深礎拡底穴の掘削は、上層部付
近をパワーシヨベル等の機械掘削によつて行な
い、人力による手掘り作業で仕上げており、それ
以深の柱体部及び拡底部は軽便な掘削工具を用い
た手掘り作業が主体であつた。
Conventionally, the above-mentioned deep foundation expansion holes were excavated near the upper layer by mechanical excavation using a power shovel, etc., and then finished by manual digging, and the deeper column parts and expanded bottom areas were excavated using convenient excavation tools. Most of the work was done by hand using .

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

ところで、深礎拡底穴の手掘り作業は、重労働
の上、狭い抗内での作業は振動、騒音、粉塵の発
生で作業能率も低いという問題がある。
By the way, manual digging of deep foundation holes has the problem of hard labor, and work in narrow pits generates vibration, noise, and dust, resulting in low work efficiency.

また、拡底部の掘削では斜杭などの支保工によ
る安全対策をとつているが、無理な作業姿勢で重
労働になり、落盤の不安がある。
In addition, safety measures are taken when excavating the expanded bottom by using supporting structures such as diagonal piles, but the work requires difficult working positions and is hard work, and there is a risk of cave-ins.

更に、柱体部や拡底部の掘削および基礎体構築
時に機材や工具の上げ下しは、パワーシヨベルの
バケツト先端部やアーム先端部にワイヤ等を掛け
て行なつているが、吊り上げや吊り下げの状態が
不安定であり、安全上問題があるため、労働安全
衛生法によつて禁止されている。
Furthermore, when excavating columns and bottom expansion areas and constructing foundations, equipment and tools are lifted and lowered by hanging wires, etc., on the tip of the bucket or arm of the power shovel. It is prohibited under the Industrial Safety and Health Act because it is unstable and poses a safety problem.

この発明の課題は、上記のような問題点を解決
するため、柱体部及び拡底部を安全に効率よく掘
削できる多目的機能を有する深礎拡底掘削機械と
この機械を用いて実施する掘削工法を提供するこ
とにある。
In order to solve the above-mentioned problems, an object of this invention is to develop a deep foundation-expanding excavation machine that has a multi-purpose function that can safely and efficiently excavate column parts and bottom-expanding parts, and an excavation method using this machine. It is about providing.

〔課題を解決するための手段〕[Means to solve the problem]

上記のような課題を解決するため、第1の発明
は、地上に設置される移動可能な作業機械のブー
ムに伸縮アームを垂下状に取付け、このアームの
下端に旋回機構を設け、前記旋回機構の下部に着
脱自在に取付ける柱体部掘削機構と、前記旋回機
構の下部に着脱自在に取付けられ、柱体部底面と
の間で旋回機構の回転中心と同軸心状の配置で旋
回機構の駆動によつて回動するアンカーと、この
アンカーに取付けられアンカーの回動による旋回
と上下の揺動が可能な伸縮式第2アームと、前記
伸縮式第2アームの先端に着脱自在に取付ける拡
底部掘削機構とを具備している構成を採用したも
のである。
In order to solve the above-mentioned problems, the first invention is to attach a telescoping arm in a hanging manner to the boom of a movable work machine installed on the ground, provide a swing mechanism at the lower end of this arm, and provide a swing mechanism to the boom of a movable work machine installed on the ground. A column excavation mechanism that is removably attached to the lower part of the rotating mechanism, and a columnar excavation mechanism that is detachably attached to the lower part of the rotating mechanism and is arranged coaxially with the rotation center of the rotating mechanism to drive the rotating mechanism. an anchor that rotates by the anchor, a telescoping second arm that is attached to the anchor and can pivot and swing up and down as the anchor rotates, and an expanded bottom part that is detachably attached to the tip of the telescoping second arm. The structure is equipped with an excavation mechanism.

同じく第2の発明は、地上に設置した移動可能
な作業機械のブームに伸縮アームを垂下状に取付
け、伸縮アームの下端に設けた旋回機構の下部に
柱体部掘削機構を装着し、柱体部掘削機構の作動
と旋回機構の回動及び伸縮アームの伸縮によつて
所定深さの柱体部を掘削し、次に柱体部掘削機構
に代えて旋回機構の下部に、アンカーを取付け、
このアンカーに設けた揺動可能な伸縮式第2アー
ムの先端に拡底部掘削機構を取付け、アンカーの
下端を柱体部底面に接地させた状態で拡底部掘削
機構を作動させ、旋回機構により、柱体部底面の
中心部に設置したアンカーを回動させ、アンカー
を中心に柱体部の下部周辺に拡底部を掘削し、こ
の掘削後に柱体部および拡底部に鉄筋コンクリー
トを打設して基礎体を構築し、この後柱体部を土
砂で埋めて敷き固めて行く構成を採用したもので
ある。
Similarly, in the second invention, a telescopic arm is attached in a hanging manner to the boom of a movable working machine installed on the ground, and a column excavation mechanism is attached to the lower part of a rotation mechanism provided at the lower end of the telescopic arm. The column part is excavated to a predetermined depth by the operation of the section excavation mechanism, the rotation of the rotation mechanism, and the extension and contraction of the telescopic arm, and then an anchor is attached to the lower part of the rotation mechanism in place of the column section excavation mechanism,
A bottom-expanding excavation mechanism is attached to the tip of a swingable telescoping second arm provided on this anchor, and the bottom-expanding excavation mechanism is operated with the lower end of the anchor in contact with the bottom of the column, and the rotation mechanism allows An anchor installed at the center of the bottom of the column is rotated, and a widened bottom is excavated around the bottom of the column around the anchor. After this excavation, reinforced concrete is poured into the column and the widened bottom to create a foundation. The construction is such that the pillar body is constructed, and then the pillar body is filled with earth and sand and then compacted.

〔作用〕[Effect]

作業機械に装着した伸縮式アームの下端旋回機
構に、先ず、柱体部掘削機構を取付け、伸縮式ア
ームの伸縮と旋回機構の回動及び柱体部掘削機構
の作動で掘削と排土を行なつて地中に柱体部を掘
削する。
First, the column excavation mechanism is attached to the lower end rotation mechanism of the telescoping arm attached to the working machine, and excavation and earth removal are carried out by the extension and contraction of the telescoping arm, the rotation of the rotation mechanism, and the operation of the column excavation mechanism. Excavate the pillar body underground.

次に、旋回機構から柱体部掘削機構を取外して
伸縮式第2アームを取付け、このアームの先端に
拡底部掘削機構を装着し、アンカーの下端を柱体
部の底面に接地させた状態で拡底部掘削機構の作
動と第2アームの伸縮動及びアンカーを中心とす
る旋回によつて、柱体部の下部周囲に拡底部を掘
削する。
Next, remove the column excavation mechanism from the rotation mechanism, attach the telescopic second arm, attach the bottom-expanding excavation mechanism to the tip of this arm, and place the lower end of the anchor in contact with the bottom of the column. An expanded bottom portion is excavated around the lower part of the column body by the operation of the expanded bottom portion excavation mechanism, the telescopic movement of the second arm, and the rotation about the anchor.

柱体部および拡底部内に鉄筋コンクリートを打
設して基礎体を構築した後、柱体部を土砂で埋
め、旋回機構に装着した転圧機構で土砂を敷き固
める。
After constructing the foundation by pouring reinforced concrete into the column and expanded bottom, the column is filled with earth and sand, and the earth and sand is spread and compacted using a compaction mechanism attached to the rotating mechanism.

〔実施例〕〔Example〕

以下、この発明の実施例を添付図面に基づいて
説明する。
Embodiments of the present invention will be described below with reference to the accompanying drawings.

第1図と第2図のように、掘削機械は、油圧パ
ワーシヨベルの如き作業機械1のブーム2に取付
ける三段式の伸縮式アーム3と、このアーム3の
下端に設けた旋回機構4と、旋回機構4の下部に
各々着脱自在となるように取付ける柱体部掘削機
構5と、伸縮式第2アーム6と、この第2アーム
6の先端に取付ける拡底部掘削機構7及び転圧機
構とによつて構成されている。
As shown in FIGS. 1 and 2, the excavation machine includes a three-stage telescoping arm 3 attached to a boom 2 of a working machine 1 such as a hydraulic power shovel, a swing mechanism 4 provided at the lower end of this arm 3, A column excavation mechanism 5 which is removably attached to the lower part of the rotation mechanism 4, a telescoping second arm 6, and an expanded bottom excavation mechanism 7 and a compaction mechanism which are attached to the tip of the second arm 6. It is structured accordingly.

上記伸縮式アーム3は、第3図に示すように、
第1の角筒11と第2の角筒12及び第3の角筒
13を伸縮自在となるよう内外に順次嵌め合せ、
第2の角筒12の上端部と第1の角筒11の内部
とをシリンダ14によつて結合し、第1の角筒1
1に対して第2の角筒12がシリンダ14の伸縮
によつて上下動するようになつている。
The telescoping arm 3 is, as shown in FIG.
The first rectangular tube 11, the second rectangular tube 12, and the third rectangular tube 13 are sequentially fitted inside and outside so that they can expand and contract,
The upper end of the second rectangular tube 12 and the inside of the first rectangular tube 11 are connected by a cylinder 14, and the first rectangular tube 1
The second rectangular tube 12 is configured to move up and down relative to the cylinder 14 by expansion and contraction of the cylinder 14.

第2の角筒12の上端部にプーリ15を枢止
し、このプーリ15に巻回したワイヤ16の一端
を第3の角筒13の上端に連結し、他端を第1の
角筒11の下端に固定すると共に、第3の角筒の
上端部に枢止したプーリ17にワイヤ18の折り
返し部分を巻回し、このワイヤ18の両端を第2
の角筒12の下端に枢止したプーリ19を介して
第1の角筒11に固定し、シリンダ14で第2の
角筒12の昇降動させると、両ワイヤ16と18
の作用で第2の角筒12に対して第3の角筒13
が昇降動することになる。
A pulley 15 is pivotally fixed to the upper end of the second rectangular tube 12, one end of a wire 16 wound around the pulley 15 is connected to the upper end of the third rectangular tube 13, and the other end is connected to the first rectangular tube 11. The folded portion of the wire 18 is wound around a pulley 17 which is fixed to the lower end of the third rectangular tube and pivoted to the upper end of the third rectangular tube.
is fixed to the first square tube 11 via a pulley 19 pivotally fixed to the lower end of the square tube 12, and when the cylinder 14 moves the second square tube 12 up and down, both wires 16 and 18
Due to the action of the third square tube 13 against the second square tube 12
will move up and down.

上記第1の角筒11は外面に固定したブラケツ
ト19を介して作業機械1におけるブーム2の先
端に揺動自在となるよう支持され、第1の角筒1
1とブーム2の間に設けたシリンダ20で伸縮式
アーム3の起立角度を自由に変化させることがで
きるようになつている。
The first rectangular tube 11 is swingably supported at the tip of the boom 2 of the working machine 1 via a bracket 19 fixed to the outer surface.
A cylinder 20 provided between the boom 1 and the boom 2 makes it possible to freely change the standing angle of the telescoping arm 3.

従つて、伸縮式アーム3は、作業機械1に取付
けられた状態で第2及び第3の角筒12,13に
より下方に伸縮自在となり、ブーム2の起伏動と
シリンダ20の伸縮により、全体の上下動及び前
後方向の角度変化が自由になる。
Therefore, when the telescopic arm 3 is attached to the work machine 1, it can extend and contract downward by the second and third rectangular tubes 12 and 13, and by the raising and lowering movement of the boom 2 and the expansion and contraction of the cylinder 20, the entire Vertical movement and angle changes in the front and back directions are free.

前記伸縮式アーム3における第3の角筒13の
下端に設けられた旋回機構4は、第4図に示すよ
うに、第3の角筒13の下端に設けたヒンジ21
にベースプレート22をピン23で固定し、ベー
スプレート22の下面に回動自在となるよう内歯
リング24を設け、ベースプレート22上に固定
した回転駆動機構25のピニオン歯車26を上記
内歯リング24と噛合させ、内歯リング24の下
面にクイツクカプラー27の一方を構成するブラ
ケツト28を固定した構造になつており、回転駆
動機構25の起動でブラケツト28が回動するこ
とになる。
As shown in FIG. 4, the turning mechanism 4 provided at the lower end of the third rectangular tube 13 in the telescoping arm 3 is connected to a hinge 21 provided at the lower end of the third rectangular tube 13.
The base plate 22 is fixed with a pin 23, an internally toothed ring 24 is provided on the lower surface of the base plate 22 so as to be rotatable, and a pinion gear 26 of a rotational drive mechanism 25 fixed on the base plate 22 meshes with the internally toothed ring 24. A bracket 28 constituting one side of the quick coupler 27 is fixed to the lower surface of the internal ring 24, and the bracket 28 rotates when the rotational drive mechanism 25 is activated.

前記柱体部掘削機構5は、第4図乃至第6図に
示すように、上部プレート31の下面に対向状と
なる一対の側板32,32をピン33で枢止し、
両側板32,32の下部に防振ゴム34を介して
下部プレート35を取付け、下部プレート35の
下部に一対のバケツト36,36が配置されてい
る。
As shown in FIGS. 4 to 6, the column excavation mechanism 5 has a pair of opposing side plates 32, 32 pivotally fixed to the lower surface of the upper plate 31 by pins 33,
A lower plate 35 is attached to the lower portions of the side plates 32, 32 via a vibration isolating rubber 34, and a pair of buckets 36, 36 are arranged under the lower plate 35.

一対のバケツト36,36は、横面半円形で対
向縁を斜にカツトし、第6図の如く、先端部がU
字状の先鋭形状に形成され、相対向する両側の上
部をヒンジ37で結合し、このヒンジ37のピン
38を下部プレート35の軸受39で支持し、第
5図の円錐形に閉じた状態から第4図の如く、円
筒状に開いた状態に、ヒンジ37のピン38を中
心に開閉自在となる。
The pair of buckets 36, 36 have semicircular sides, opposite edges are cut diagonally, and the tips are U-shaped as shown in FIG.
It is formed into a sharp-pointed shape, and the opposing upper parts of both sides are joined by a hinge 37, and the pin 38 of this hinge 37 is supported by a bearing 39 of the lower plate 35. As shown in FIG. 4, it can be opened and closed in a cylindrical open state around the pin 38 of the hinge 37.

両バケツト36,36の上端部両側にヒンジ4
0を介して上方に突出するリンク41が連結さ
れ、両バケツト36,36におけるリンク41,
41の上端をピン42で互に結合すると共に、下
部プレート35上に立設した支柱43の上端に揺
動リンク44を枢止し、この一端を前記ピン42
と連結すると共に、振動リンク44の他端が下部
プレート35に取付けたシリンダ45に連結さ
れ、このシリンダ45の伸縮により、バケツト3
6,36が開閉動することになる。
Hinge 4 on both sides of the upper end of both buckets 36, 36
A link 41 protruding upward is connected through the link 41 in both the buckets 36,
The upper ends of 41 are connected to each other by a pin 42, and a swing link 44 is pivotally fixed to the upper end of a column 43 erected on the lower plate 35, and one end of this is connected to the pin 42.
At the same time, the other end of the vibration link 44 is connected to a cylinder 45 attached to the lower plate 35, and as the cylinder 45 expands and contracts, the bucket belt 3
6 and 36 will open and close.

前記下部プレート35上に、上下方向の振動の
みをバケツト36,36に伝達する起振機46が
設置され、起振力を利用してバケツト36,36
の掘削性能を向上させるようにしている。
A vibrator 46 is installed on the lower plate 35 to transmit only vertical vibrations to the buckets 36, 36, and uses vibrational force to move the buckets 36, 36.
We are trying to improve the excavation performance of.

上記柱体部掘削機構5の上部プレート31上に
は、クイツクカプラー27の他方を構成する掛止
金具47が固定され、掛止金具47の一端に設け
たフツク48をブラケツト28のピン49に掛止
し、掛止金具47の他端を抜差式のピン50で結
合することにより、旋回機構4の下部に柱体部掘
削機構5を着脱自在に取付けることができる。
A latch 47 constituting the other side of the quick coupler 27 is fixed on the upper plate 31 of the column excavation mechanism 5, and a hook 48 provided at one end of the latch 47 is connected to a pin 49 of the bracket 28. By latching and connecting the other end of the latching fitting 47 with a removable pin 50, the column excavating mechanism 5 can be detachably attached to the lower part of the turning mechanism 4.

なお、柱体部掘削機構5におけるバケツト3
6,36は、断面形状を円形とし、円形穴の掘削
に適応するようにしたものを図示したが、角形穴
を掘削する場合、断面形状を角形にすればよい。
In addition, the bucket 3 in the column excavation mechanism 5
6 and 36 have a circular cross-sectional shape and are suitable for drilling a circular hole, but when drilling a square hole, the cross-sectional shape may be square.

前記両側板32,32の下部を結合する横桟5
1と上部プレート31がチルトシリンダ52で結
合され、このシリンダ52の伸長により、バケツ
ト36,36の角度を垂直状態から一方に傾斜さ
せることができるようになつている。
A horizontal beam 5 that connects the lower portions of the side plates 32, 32.
1 and the upper plate 31 are connected by a tilt cylinder 52, and by extending the cylinder 52, the angle of the buckets 36, 36 can be tilted from a vertical state to one side.

第4図乃至第6図の場合、一方バケツト36の
外側下部に、ライナープレートDの下部を掘削す
るための拡張掘削具101を着脱自在に取付けた
例を示している。
In the case of FIGS. 4 to 6, an example is shown in which an extended excavator 101 for excavating the lower part of the liner plate D is detachably attached to the outer lower part of the bucket 36.

この拡張掘削具101は、バケツト36の外側
で下部にアーム102をナツト103による締付
けで着脱自在に突設し、アーム102の先端に掘
削プレート104を固定すると共に、アーム10
2の上面にライナープレートDへ当接するガイド
杆105,105を立設した構造になつており、
両バケツト36,36を拡開させた第5図の状態
で掘削プレート104は垂直になり、ガイド杆1
05,105をライナープレートDの内面に当接
させた状態でバケツト36,36を下降させれ
ば、ライナープレートDの下部にこのプレートD
の設置に必要な拡張掘りが正確に行なえることに
なる。
This extended excavation tool 101 has an arm 102 protruding from the lower part outside the bucket 36, which can be attached and detached by tightening with a nut 103, and an excavation plate 104 is fixed to the tip of the arm 102.
It has a structure in which guide rods 105, 105 are erected on the top surface of 2 to abut against the liner plate D.
In the state shown in FIG. 5 with both buckets 36, 36 expanded, the excavation plate 104 becomes vertical, and the guide rod 1
If the buckets 36, 36 are lowered with the 05, 105 in contact with the inner surface of the liner plate D, this plate D will be placed at the bottom of the liner plate D.
This means that the necessary expansion digging for installation can be done accurately.

次に、伸縮式の第2アーム6は、第7図のよう
に、アンカー61の途中に角度調整が自在となる
よう交差状に取付けられている。
Next, as shown in FIG. 7, the telescoping second arm 6 is attached to the anchor 61 in a crosswise manner so that its angle can be adjusted freely.

アンカー61は、上端のプレート62上にクイ
ツクカプラーの他方を構成する掛止金具47を固
定した上パイプ63の下端にボルト式のジヨイン
ト64を用いて下パイプ65を伸縮可能に結合
し、下パイプ65の下端に下方へ突出するセンタ
ーシヤフト66を設けて形成され、センターシヤ
フト66を縦穴の下面に固定したアンカーベース
プレート67内に挿入するようになつている。
The anchor 61 is configured such that a lower pipe 65 is extendably connected to the lower end of an upper pipe 63 to which a hook 47 constituting the other side of the quick coupler is fixed on a plate 62 at the upper end, using a bolt-type joint 64. A center shaft 66 is provided at the lower end of the pipe 65 and projects downward, and the center shaft 66 is inserted into an anchor base plate 67 fixed to the lower surface of the vertical hole.

このアンカー61は、クイツクカプラー27に
よつて旋回機構4の下部に着脱自在に固定したと
き、旋回機構4の回転中心と同軸心状の配置にな
り、旋回機構4の起動により、軸心を中心に回動
することになる。
When this anchor 61 is removably fixed to the lower part of the rotation mechanism 4 by the quick coupler 27, it is placed coaxially with the rotation center of the rotation mechanism 4, and when the rotation mechanism 4 is activated, the axis is centered. It will rotate around the center.

伸縮式第2アーム6は、外筒68と内筒69を
嵌合し、その内部に外筒68と内筒69を伸縮さ
せるシリンダ70を組込み、外筒68の外面にブ
ラケツト71を軸方向に位置調整が自在となるよ
う固定して構成され、上記ブラケツト71の上端
をアンカー61における上パイプ63の支持ブラ
ケツト72にピン73で枢止し、支持ブラケツト
72とブラケツト71の間に設けたシリンダ74
の伸縮により、ピン73を中心に揺動するようア
ンカー61に取付けられている。
The telescopic second arm 6 has an outer cylinder 68 and an inner cylinder 69 fitted together, a cylinder 70 that expands and contracts the outer cylinder 68 and the inner cylinder 69, and a bracket 71 attached to the outer surface of the outer cylinder 68 in the axial direction. The upper end of the bracket 71 is pivotally fixed to the support bracket 72 of the upper pipe 63 in the anchor 61 with a pin 73, and a cylinder 74 is provided between the support bracket 72 and the bracket 71.
The anchor 61 is attached to the anchor 61 so as to swing around the pin 73 as the anchor 61 expands and contracts.

上記伸縮式第2アーム6における内筒69の先
端側上面に揺動リンク75が枢止され、内筒69
上に取付けたシリンダ76と揺動リンク75の上
端を枢止連結し、更に揺動リンク75の上端にリ
ンク77を枢止連結し、このリンク77と内筒6
9の先端に拡底部掘削機構7と転圧機構を着脱自
在に取付けることができるようになつている。
A swing link 75 is pivotally fixed to the upper surface of the distal end side of the inner cylinder 69 in the telescoping second arm 6.
The upper end of the swinging link 75 is pivotally connected to the cylinder 76 mounted above, and a link 77 is also pivotally connected to the upper end of the swinging link 75.
The bottom-expanding portion excavation mechanism 7 and the rolling mechanism can be detachably attached to the tip of the bottom-expanding section 9.

拡底部掘削機構7には、第7図に示すバケツト
7aと、第8図に示す回転カツター7bと、第9
図に示す油圧ブレーカ7c及び第10図の揺動プ
レート7dがあり、各々が内筒69とリンク77
の先端に対してピン78,79で相互に取替がで
きるように着脱自在に取付けられる。
The bottom-expanding excavation mechanism 7 includes a bucket 7a shown in FIG. 7, a rotary cutter 7b shown in FIG.
There is a hydraulic breaker 7c shown in the figure and a swing plate 7d shown in FIG.
It is removably attached to the tip of the holder with pins 78 and 79 so that it can be replaced.

上記カツター7bは、コーン形に形成され、駆
動機80による回転とアンカー61を中心とする
回動により、柱体部Aの下端周囲に拡底部Bを同
軸心状に掘削すると共に、バケツト7aは、同じ
く拡底部Bの掘削と土砂の排出を行ない、また、
油圧ブレーカ7cは岩盤の場合の掘削に用い、振
動プレート7dは軟弱地盤の締固めを行なう場合
に用いるものである。
The cutter 7b is formed in a cone shape, and is rotated by a driving machine 80 and rotated around an anchor 61 to coaxially excavate the enlarged bottom part B around the lower end of the column part A, and the bucket 7a , Similarly, excavation of expanded bottom part B and discharge of earth and sand were carried out, and
The hydraulic breaker 7c is used for excavating rock, and the vibrating plate 7d is used for compacting soft ground.

なお、転圧機構は図示省略したが伸縮式第2ア
ーム6の内筒69の先端に拡底部掘削機構7と同
様の手段で着脱自在に取付け、柱体部A内を鉄塔
脚材等の埋設後に土砂で埋めて敷き固めて行くこ
とができる構造になつている。
Although the rolling mechanism is not shown, it is removably attached to the tip of the inner cylinder 69 of the telescoping second arm 6 by the same means as the bottom-expanding excavation mechanism 7, and the inside of the column body A is used for burying steel tower leg materials, etc. The structure allows it to be later filled with earth and sand and compacted.

また、上記した深礎拡底掘削機械を用いて柱体
部A及び拡底部Bを掘削するとき、その深部を地
上にて監視できるよう、第2図に示すように、テ
レビカメラ81とモニタテレビや画像処理装置8
2を用いた監視システムを併用すると、作業者が
穴部に入ることがなく掘削状況を確認することが
でき、安全面での対応を大幅に向上させることが
できる。
In addition, when excavating the column body A and the expanded bottom part B using the above-mentioned deep foundation expanding excavation machine, a television camera 81 and a monitor TV are installed as shown in FIG. 2 so that the deep part can be monitored from the ground. Image processing device 8
When used in conjunction with a monitoring system using 2, the operator can check the excavation status without entering the hole, greatly improving safety measures.

更に、深礎拡底掘削機械において、柱体部およ
び拡底部の掘削、排土を行なう各機構の操作は、
地上に設けたリモートコントロール操作盤、制御
盤を通して電磁弁を切替え作動させ、リモートコ
ントロール方式によつて行なうものである。
Furthermore, in the deep foundation expansion excavation machine, the operation of each mechanism that excavates the column part and the bottom expansion part, and removes soil is as follows.
This is done by remote control, by switching and operating the solenoid valves through a remote control panel installed on the ground.

第13図は、伸縮式アーム3を取り付ける作業
機械1を利用して資機材や工具の上げ下しを行な
う場合の例を示しており、ブーム2とシリンダ2
0の先端に巻き上げクレーン装置111を取付
け、資機材や工具を安全かつ能率的に上げ下しで
きるようにしている。
Figure 13 shows an example of lifting and lowering equipment and tools using the work machine 1 to which the telescoping arm 3 is attached, and shows the boom 2 and cylinder 2.
A hoisting crane device 111 is attached to the tip of the 0, allowing materials and equipment and tools to be raised and lowered safely and efficiently.

この発明の深礎拡底掘削機械は上記のような構
成であり、次の掘削工法を説明する。
The deep foundation-expanding excavation machine of the present invention has the above-mentioned configuration, and the following excavation method will be explained.

先ず、第1図のように、作業機械1のブーム2
における先端に伸縮式アーム3を装着し、このア
ーム3の第3の角筒13の下端に旋回機構4を介
して柱体部掘削機構5を装着し、伸縮式アーム3
の伸縮と傾斜及び旋回機構4による掘削機構5の
回動等によつて柱体部Aを掘削する。
First, as shown in Fig. 1, the boom 2 of the work machine 1 is
A telescopic arm 3 is attached to the tip of the arm 3, and a column excavation mechanism 5 is attached to the lower end of the third rectangular tube 13 of this arm 3 via a turning mechanism 4.
The column body A is excavated by the expansion/contraction and inclination of the excavation mechanism 5 and the rotation of the excavation mechanism 5 by the rotation mechanism 4.

柱体部Aの掘削時において、柱体部掘削機構5
は両バケツト36,36を開き、起振機46を起
動させて起振させながら、地中に突込み、この後
バケツト36,36を閉じ、伸縮式アーム3を縮
めて掘削機構5を上昇させ、更に、ブーム2の起
伏と作業機械1の旋回機構を利用し、所定の場所
へバケツト36,36を移動させ、バケツト3
6,36を開いて排土する。
When excavating the column A, the column excavation mechanism 5
opens both buckets 36, 36, activates the exciter 46 to vibrate and plunges into the ground, then closes the buckets 36, 36, retracts the telescoping arm 3 and raises the excavation mechanism 5, Furthermore, the bucket carts 36, 36 are moved to a predetermined location using the raising and lowering of the boom 2 and the turning mechanism of the working machine 1, and the bucket carts 36 are moved to a predetermined location.
Open 6, 36 and remove the soil.

このとき、バケツト36,36を起振させる
と、バケツト36,36からの土の剥れが向上す
る。
At this time, when the buckets 36, 36 are vibrated, soil removal from the buckets 36, 36 is improved.

なお、柱体部Aの掘削時において、柱体部掘削
機構5のバケツト36,36は、開いた状態で断
面円筒形に形成されているので、第11図aのよ
うに、柱体部Aの円筒断面のどの位置にでもバケ
ツト36,36を容易に設置することができ、第
11図bに示した従来の角形シエルバケツト91
を用いた掘削に比べ、柱体部Aの内周仕上げ掘削
が円滑に能率よく行なえるという利点がある。
Note that when excavating the column A, the buckets 36, 36 of the column excavation mechanism 5 are formed with a cylindrical cross section in an open state, so as shown in FIG. The buckets 36, 36 can be easily installed at any position on the cylindrical cross section of the conventional rectangular shell bucket 91 shown in FIG. 11b.
This method has the advantage that finishing excavation of the inner periphery of the column body A can be carried out smoothly and efficiently compared to excavation using a drill.

なお、旋回機構4に取付けた振動バケツト36
に簡易フツクを装着しておくと、柱体部Aの掘削
後のライナプレートDの設置や軽量機材の運搬を
行なうことができる。
In addition, the vibrating bucket 36 attached to the turning mechanism 4
By attaching a simple hook to the column, it is possible to install the liner plate D after excavating the column A and to transport lightweight equipment.

前記柱体部Aの掘削後、柱体部Aの下部周囲に
拡底部Bを掘削するため、柱体部掘削機構5に代
えてアンカー61と伸縮式第2アーム6をクイツ
クカプラー27で旋回機構4に装着し、第2アー
ム6の内筒69の先端に、用途及び土質に応じた
拡底部掘削機構7を取付ける。
After excavating the column body A, in order to excavate the expanded bottom part B around the lower part of the column body A, instead of the column body excavation mechanism 5, the anchor 61 and the telescoping second arm 6 are rotated by the quick coupler 27. The bottom-expanding excavation mechanism 7 is attached to the mechanism 4 and is attached to the tip of the inner cylinder 69 of the second arm 6 in accordance with the purpose and soil quality.

拡底部Bの掘削を行なうには、柱体部Aの底面
でセンター位置にアンカーベースプレート67を
設置し、伸縮式アーム3を垂直に保持した状態で
下方に伸長させ、アンカー61の下端センターシ
ヤフト66をアンカーベースプレート67の中心
孔67aに挿入してアンカー61をセンタリング
する。
To excavate the expanded bottom part B, install the anchor base plate 67 at the center position on the bottom surface of the column part A, extend it downward while holding the telescoping arm 3 vertically, and press the lower end center shaft 66 of the anchor 61. is inserted into the center hole 67a of the anchor base plate 67 to center the anchor 61.

アンカー61に所定の傾斜角度で固定した伸縮
式第2アーム6の先端に取付けた拡底部掘削機構
7を、伸縮式第2アーム6を伸長させて柱体部A
の周囲に進入させ、掘削機構7の作動とアンカー
61のセンターを中心とする回動とによつて、高
能率で均質な断面の拡底部Bを掘削する。なお、
アンカー61は掘削機構7による先端作業時の反
力受けとなる。
The bottom-expanding excavation mechanism 7 is attached to the tip of the telescopic second arm 6 fixed to the anchor 61 at a predetermined inclination angle.
By operating the excavation mechanism 7 and rotating the anchor 61 about the center, the enlarged bottom part B with a homogeneous cross section is excavated with high efficiency. In addition,
The anchor 61 serves as a reaction force receiver when the excavation mechanism 7 works at the tip.

拡底部Bの掘削において、通常の地盤であれ
ば、拡底部Bの形状に合うよう形成した回転カツ
ター7bを用い、回転させたカツター7bを貫入
後、旋回機構4を回転させることにより、柱体部
Aと同軸心状の拡底部Bを掘削する。
When excavating the expanded bottom part B, if the ground is normal, a rotary cutter 7b formed to match the shape of the expanded bottom part B is used, and after penetrating with the rotated cutter 7b, by rotating the rotating mechanism 4, the column body is removed. An enlarged bottom part B coaxial with part A is excavated.

また、拡底部掘削途上に岩盤等がある場合に
は、回転カツター7bに代えて油圧ブレーカ7c
を使用すると共に、拡底部Bの仕上げや排土に
は、バケツト7aを使用し、軟弱地盤の場合は掘
削底盤部を振動プレート7dで締固めて仕上げ、
第2図に示すような柱体部Aと拡底部Bからなる
縦穴が完成する。
In addition, if there is rock etc. in the middle of excavating the bottom expansion part, a hydraulic breaker 7c can be used instead of the rotary cutter 7b.
In addition, a bucket 7a is used to finish and remove soil from the expanded bottom part B, and in the case of soft ground, the excavated bottom part is compacted and finished with a vibrating plate 7d.
A vertical hole consisting of a columnar part A and an enlarged bottom part B as shown in FIG. 2 is completed.

完成した縦穴に対して第12図のように鉄塔脚
材Cを埋設後、転圧機構を用い、縦穴を土砂で埋
めて敷き固める。
After burying the steel tower foot material C in the completed vertical hole as shown in Figure 12, the vertical hole is filled with earth and sand and compacted using a rolling mechanism.

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によると、柱体部とそ
の下端周囲の拡底部とを地上から掘削することが
でき、深礎拡底掘削の作業能率と安全性を大幅に
向上させることができる。
As described above, according to the present invention, it is possible to excavate the column body and the expanded bottom portion around its lower end from the ground, and the work efficiency and safety of deep foundation expanded excavation can be greatly improved.

また、柱体部と拡底部を機械的に掘削するの
で、手掘り作業が不要になり、作業環境の悪化が
ないと共に、拡底部は旋回機構によつて回転する
アンカーを中心とする回動によつて掘削するの
で、正確な円形掘削が可能になり、掘削の仕上り
精度が大幅に向上する。
In addition, since the column body and expanded bottom part are mechanically excavated, manual digging work is no longer required, and the working environment is not degraded.The expanded bottom part can also be rotated around the anchor that rotates by the rotating mechanism. Since the excavation is carried out sideways, accurate circular excavation is possible, and the finishing accuracy of excavation is greatly improved.

更に、地上に設置する移動可能な作業機械に掘
削機械を取付けた移動式としたので、柱状部内へ
のライナープレートの取付けや配筋時には他の柱
状部の掘削が行なえ、作業能率を大幅に向上させ
ることができる。
Furthermore, since the excavation machine is attached to a movable work machine that is installed on the ground, it is possible to excavate other columns when installing liner plates or reinforcing inside columns, greatly improving work efficiency. can be done.

【図面の簡単な説明】[Brief explanation of drawings]

第1図はこの発明に係る掘削機械の縦穴掘削状
態を示す説明図、第2図は同じく拡底部の掘削状
態を示す説明図、第3図は伸縮式アームの収縮状
態を示す拡大断面図、第4図は掘削バケツトの正
面図、第5図は同上の開いた状態を示す正面図、
第6図は同上の側面図、第7図乃至第10図は拡
底部掘削機構の異なつた例を示し、第7図はバケ
ツトの場合の正面図、第8図は回転カツターの場
合の正面図、第9図は油圧ブレーカの場合の正面
図、第10図は振動プレートの場合の正面図、第
11図aとbは縦穴掘削時の本発明と従来例を示
す横断面図、第12図は完成した基礎の縦断面
図、第13図は作業機械をクレーン装置に用いた
状態を示す説明図である。 1……作業機械、2……ブーム、3……伸縮式
アーム、4……旋回機構、5……柱体部掘削機
構、6……伸縮式第2アーム、7……拡底部掘削
機構、7a……バケツト、7b……回転カツタ
ー、7c……油圧ブレーカ、7b……振動プレー
ト、11……第1の角筒、12……第2の角筒、
13……第3の角筒、36……バケツト、61…
…アンカー、68……外筒、69……内筒。
FIG. 1 is an explanatory diagram showing a state in which the excavating machine according to the invention excavates a vertical hole, FIG. 2 is an explanatory diagram similarly showing the state in which the expanded bottom portion is excavated, and FIG. 3 is an enlarged sectional view showing the retracted state of the telescoping arm. Figure 4 is a front view of the excavation bucket, Figure 5 is a front view of the same as above showing the open state,
Fig. 6 is a side view of the same as above, Figs. 7 to 10 show different examples of the bottom-expanding excavation mechanism, Fig. 7 is a front view of a bucket bucket, and Fig. 8 is a front view of a rotary cutter. , FIG. 9 is a front view in the case of a hydraulic breaker, FIG. 10 is a front view in the case of a vibrating plate, FIGS. 11 a and b are cross-sectional views showing the present invention and a conventional example when excavating a vertical hole, and FIG. 12 13 is a longitudinal sectional view of the completed foundation, and FIG. 13 is an explanatory diagram showing the state in which the working machine is used as a crane device. DESCRIPTION OF SYMBOLS 1...Working machine, 2...Boom, 3...Extendable arm, 4...Swivel mechanism, 5...Column excavation mechanism, 6...Extendable second arm, 7...Expanded bottom excavation mechanism, 7a... Bucket, 7b... Rotating cutter, 7c... Hydraulic breaker, 7b... Vibration plate, 11... First square tube, 12... Second square tube,
13...Third square tube, 36...Bucket, 61...
...anchor, 68...outer cylinder, 69...inner cylinder.

Claims (1)

【特許請求の範囲】 1 地上に設置される移動可能な作業機械のブー
ムに伸縮アームを垂下状に取付け、このアームの
下端に旋回機構を設け、前記旋回機構の下部に着
脱自在に取付ける柱体部掘削機構と、前記旋回機
構の下部に着脱自在に取付けられ、柱体部底面と
の間で旋回機構の回転中心と同軸心状の配置で旋
回機構の駆動によつて回動するアンカーと、この
アンカーに取付けられアンカーの回動による旋回
と上下の揺動が可能な伸縮式第2アームと、前記
伸縮式第2アームの先端に着脱自在に取付ける拡
底部掘削機構とを具備している深礎拡底掘削機
械。 2 地上に設置した移動可能な作業機械のブーム
に伸縮アームを垂下状に取付け、伸縮アームの下
端に設けた旋回機構の下部に柱体部掘削機構を装
着し、柱体部掘削機構の作動と旋回機構の回動及
び伸縮アームの伸縮によつて所定深さの柱体部を
掘削し、次に柱体部掘削機構に代えて旋回機構の
下部に、アンカーを取付け、このアンカーに設け
た揺動可能な伸縮式第2アームの先端に拡底部掘
削機構を取付け、アンカーの下端を柱体部底面に
接地させた状態で拡底部掘削機構を作動させ、旋
回機構により、柱体部底面の中心部に設置したア
ンカーを回動させ、アンカーを中心に柱体部の下
部周辺に拡底部を掘削し、この掘削後に柱体部お
よび拡底部に鉄筋コンクリートを打設して基礎体
を構築し、この後柱体部を土砂で埋めて敷き固め
て行く深礎拡底掘削工法。
[Scope of Claims] 1. A column in which a telescoping arm is attached in a hanging manner to the boom of a movable work machine installed on the ground, a swing mechanism is provided at the lower end of the arm, and a column is detachably attached to the lower part of the swing mechanism. an anchor that is removably attached to the lower part of the pivot mechanism and rotates by the drive of the pivot mechanism in a coaxial arrangement with the rotation center of the pivot mechanism between the bottom surface of the pillar section; A retractable second arm is attached to the anchor and is capable of pivoting and vertically swinging as the anchor rotates, and a bottom-expanding excavation mechanism is detachably attached to the tip of the retractable second arm. Foundation expansion excavation machine. 2. Attach a telescoping arm in a hanging manner to the boom of a movable working machine installed on the ground, attach a column excavation mechanism to the lower part of the rotation mechanism provided at the lower end of the telescoping arm, and operate the column excavation mechanism. The column body is excavated to a predetermined depth by the rotation of the rotation mechanism and the extension and contraction of the telescopic arm. Next, an anchor is attached to the lower part of the rotation mechanism in place of the column excavation mechanism, and the rocker provided on this anchor is The bottom-expanding excavation mechanism is attached to the tip of the movable telescoping second arm, and the bottom-expanding excavation mechanism is operated with the lower end of the anchor in contact with the bottom of the column. Rotate the anchor installed in the column and excavate an expanded bottom around the bottom of the column using the anchor as the center.After this excavation, reinforced concrete is poured into the column and the expanded bottom to construct a foundation. A deep foundation excavation method in which the rear pillar body is filled with earth and sand and compacted.
JP20988488A 1988-08-23 1988-08-23 Deep foundation enlarged bottom excavating machine and method Granted JPH0258691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20988488A JPH0258691A (en) 1988-08-23 1988-08-23 Deep foundation enlarged bottom excavating machine and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20988488A JPH0258691A (en) 1988-08-23 1988-08-23 Deep foundation enlarged bottom excavating machine and method

Publications (2)

Publication Number Publication Date
JPH0258691A JPH0258691A (en) 1990-02-27
JPH0515877B2 true JPH0515877B2 (en) 1993-03-02

Family

ID=16580242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20988488A Granted JPH0258691A (en) 1988-08-23 1988-08-23 Deep foundation enlarged bottom excavating machine and method

Country Status (1)

Country Link
JP (1) JPH0258691A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0743197Y2 (en) * 1992-02-12 1995-10-04 持留 重幸 Excavator rotating clam bucket structure
JP7138060B2 (en) * 2019-01-31 2022-09-15 三菱重工業株式会社 Cutting device and method and robot

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS575937A (en) * 1980-06-11 1982-01-12 Kurashiki Boseki Kk Fluff binding of yarn
JPS59233094A (en) * 1983-06-16 1984-12-27 株式会社 白石 Shaft pit drilling machine
JPS6147950A (en) * 1984-08-14 1986-03-08 Konishiroku Photo Ind Co Ltd Image forming method
JPS62215796A (en) * 1986-03-15 1987-09-22 日立造船株式会社 Pit drilling machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS575937A (en) * 1980-06-11 1982-01-12 Kurashiki Boseki Kk Fluff binding of yarn
JPS59233094A (en) * 1983-06-16 1984-12-27 株式会社 白石 Shaft pit drilling machine
JPS6147950A (en) * 1984-08-14 1986-03-08 Konishiroku Photo Ind Co Ltd Image forming method
JPS62215796A (en) * 1986-03-15 1987-09-22 日立造船株式会社 Pit drilling machine

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