JPS5830840Y2 - Excavator for continuous wall pouring - Google Patents

Excavator for continuous wall pouring

Info

Publication number
JPS5830840Y2
JPS5830840Y2 JP6383482U JP6383482U JPS5830840Y2 JP S5830840 Y2 JPS5830840 Y2 JP S5830840Y2 JP 6383482 U JP6383482 U JP 6383482U JP 6383482 U JP6383482 U JP 6383482U JP S5830840 Y2 JPS5830840 Y2 JP S5830840Y2
Authority
JP
Japan
Prior art keywords
boom
support frame
excavator
boom support
shaped steel
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
Application number
JP6383482U
Other languages
Japanese (ja)
Other versions
JPS57202437U (en
Inventor
衛 綱沢
圭之助 徳重
Original Assignee
石川島播磨重工業株式会社
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 石川島播磨重工業株式会社 filed Critical 石川島播磨重工業株式会社
Priority to JP6383482U priority Critical patent/JPS5830840Y2/en
Publication of JPS57202437U publication Critical patent/JPS57202437U/ja
Application granted granted Critical
Publication of JPS5830840Y2 publication Critical patent/JPS5830840Y2/en
Expired legal-status Critical Current

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  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Description

【考案の詳細な説明】 本考案は、天然液化ガス等の貯蔵用地下タンクにおける
連続壁打設用の溝孔を開削する掘削機に関するものであ
る。
[Detailed Description of the Invention] The present invention relates to an excavator that excavates a trench for pouring a continuous wall in an underground tank for storing natural liquefied gas or the like.

天然液化ガス等の貯蔵用地下タンクにおいては、直径お
よび深さが共に数十メートルに及ぶ円筒形の連続壁なる
ものを打設するが、この打設に先立って、その連続壁打
設用の溝孔を開削する必要がある。
In underground tanks for storage of natural liquefied gas, etc., a continuous cylindrical wall with a diameter and depth of several tens of meters is constructed. Slot holes need to be drilled.

従来は、そのような連続壁打設用溝孔には適当な掘削機
がないため、第2図にみられるような垂直円形ポーリン
グ機械Cを使用してきたが、これでは、第1図で明らか
なように、aの部分がポーリング機械Cでは掘削されな
いで残ってしまい、したがって、aの部分は後に別の方
法で除去しなければならない。
Conventionally, there was no suitable excavator for such trenches for pouring continuous walls, so a vertical circular poling machine C as shown in Figure 2 was used. As such, part a remains unexcavated by the polling machine C, and therefore has to be removed later by another method.

またポーリング機械Cの自重を掘削部の貫入力として利
用し、直進精度としては重力の鉛直性のみをたよりとし
て掘進するものであるから、土質の不均一による方向の
狂いは避は難く、かつ、第1図および第2図に示される
ように、ポーリング孔径はdであるが、ポーリング孔は
隣りどうしその円形断面の一部すが重なりあうように掘
削しなければならないので、土質の不均一がない場合で
も、掘進方向が既設の孔のほうに、つまり、第2図の矢
印eで示すほうに曲りやすいなどの欠点があった。
In addition, since the weight of the poling machine C is used as the penetration force of the excavation part, and the straightness of the excavation relies only on the verticality of gravity, it is difficult to avoid misdirection due to uneven soil quality. As shown in Figures 1 and 2, the diameter of the polling hole is d, but adjacent polling holes must be excavated so that part of their circular cross section overlaps, so uneven soil quality is avoided. Even when there is no hole, there is a drawback that the direction of excavation tends to bend toward the existing hole, that is, toward the direction indicated by arrow e in FIG.

本考案は、上記従来技術の欠点を解消することを目的と
するもので、地中に連続壁を構成するために円筒を等分
するように既に配置されているH形鋼などの形鋼の柱間
に、揺動可能な掘削部を有する掘削機のブーム支持枠を
昇降可能に取付けて、該柱間の土を掘削しながら降下し
、前記連続壁打設用溝孔を高精度および高能率に開削す
るようにしたもので、その実施態様について第3図ない
し第8図を参照しながら説明する。
The purpose of the present invention is to solve the above-mentioned drawbacks of the prior art, and the purpose of this invention is to use steel sections such as H-beams, which are already arranged to divide a cylinder into equal parts, in order to construct a continuous wall underground. A boom support frame of an excavator having a swingable excavation part is installed between the pillars so as to be able to move up and down, and the boom support frame of the excavator is lowered while excavating the soil between the pillars, and the continuous wall casting groove is drilled with high precision and high precision. It is designed to efficiently cut and cut, and its embodiment will be explained with reference to FIGS. 3 to 8.

第3図ないし第5図において、1は回転式の掘削用カッ
タ、2はブーム、3はブーム支持枠である。
In FIGS. 3 to 5, 1 is a rotary excavation cutter, 2 is a boom, and 3 is a boom support frame.

すなわち、カッタ1はブーム2に取付けられ、ブーム2
はブーム支持枠3にピン9によって連結されている。
That is, the cutter 1 is attached to the boom 2, and the cutter 1 is attached to the boom 2.
is connected to the boom support frame 3 by a pin 9.

ブーム支持枠3は長手方向に伸縮できる構造であり、両
端にはグリッパ4が付いていて、該グリッパ4には前記
ブーム支持枠3の伸縮方向に対して直角方向に伸縮する
足5が装備されている。
The boom support frame 3 has a structure that can be expanded and contracted in the longitudinal direction, and grippers 4 are attached to both ends, and the grippers 4 are equipped with legs 5 that can be expanded and contracted in a direction perpendicular to the direction of expansion and contraction of the boom support frame 3. ing.

ブーム2とブーム支持枠3の間にはブーム揺動シリンダ
6が取付けられている。
A boom swing cylinder 6 is installed between the boom 2 and the boom support frame 3.

また7はワイヤロープ、8はウィンチ、10はH形鋼柱
、11はすり搬出用サクションバイブ、12はガイドウ
オールで゛ある。
Further, 7 is a wire rope, 8 is a winch, 10 is an H-shaped steel column, 11 is a suction vibrator for sliding and carrying out, and 12 is a guide wall.

上記のように構成された掘削機は、ワイヤロープ7によ
って吊下げられ、ウィンチ8によって溝孔を下降する。
The excavator configured as described above is suspended by a wire rope 7 and moved down the trench by a winch 8.

そして伸縮可能なブーム支持枠3およびグリッパ4の足
5を油圧シリンダ等(図示せず)により掘削溝の幅方向
に伸長すると、グリッパ4はH形鋼柱10を確実に把み
、ブーム支持枠3の姿勢および位置が固定される。
Then, when the extensible boom support frame 3 and the legs 5 of the gripper 4 are extended in the width direction of the excavation trench by a hydraulic cylinder or the like (not shown), the gripper 4 securely grips the H-shaped steel column 10, and the boom support frame The posture and position of No. 3 are fixed.

つぎに、油圧シリンダ6を縮めてカッタ1、つまり、ブ
ー、?、2を第3図で左側に寄ぜたのち、カッタ1を回
転させつつブー、4.2に内蔵された油圧シリンダ等(
図示せず)により伸長させる。
Next, the hydraulic cylinder 6 is retracted and the cutter 1 is activated. , 2 to the left side in Fig. 3, and while rotating the cutter 1, remove the hydraulic cylinder, etc. built into the Boo, 4.2 (
(not shown).

このようにして土中に切込んだカッタ1は次に油圧シリ
ンダ6をゆっくり伸長させると、ブーム2と共に右方に
動き始め、掘削をする。
The cutter 1, which has cut into the soil in this way, then slowly extends the hydraulic cylinder 6, and then begins to move to the right together with the boom 2, and excavates.

カッタ1が右側の限界まで到達したらカッタ1を縮め、
足5を縮め、そしてブーム支持枠3を縮め、最後にワイ
ヤロープ7を巻下して掘削機全体をH形鋼柱10に沿わ
しめて下降させる。
When cutter 1 reaches the limit on the right side, retract cutter 1,
The legs 5 are retracted, the boom support frame 3 is retracted, and finally the wire rope 7 is lowered to lower the entire excavator along the H-shaped steel column 10.

以下、J−記工程を繰返えす。Thereafter, the process J- is repeated.

なお本実施例では土中への最初の切込みはカッタ1の伸
長動作によってなされるが、カッタは非伸縮の機構とし
、切込みを装置自体の重力による降Fによって行なうと
いう方法も白子能で゛ある。
In this embodiment, the first cut into the soil is made by the extension action of the cutter 1, but it is also possible to use a non-extensible mechanism for the cutter and make the cut by the falling force of the gravity of the device itself. .

以上の説明で明らかなように、掘削機は前もって打設さ
れたH形鋼柱10に沿って降下するため、H形鋼柱の打
設精度がよければ、それに応じた高精度の掘削ができる
As is clear from the above explanation, since the excavator descends along the H-beam steel column 10 that has been cast in advance, if the H-beam steel column is placed with good precision, it is possible to excavate with high precision. .

上記第3図ないし第5図に示した本考案の第1実施例で
は、カッタ1が1個であるが、本考案の第2実施例とし
て、カッタが1と1′というように、2個の場合を第6
図ないし第8図に示す。
In the first embodiment of the present invention shown in FIGS. 3 to 5, there is one cutter 1, but in the second embodiment of the present invention, there are two cutters, 1 and 1'. The sixth case is
As shown in Figures 8 to 8.

このカッタ1と1′というように2個の場合は、回転方
向が互いに逆になるようにするから、カッタの掘削反力
が消し合うという利点がある。
In the case of two cutters such as 1 and 1', the rotating directions are opposite to each other, so there is an advantage that the excavation reaction forces of the cutters cancel each other out.

なお掘削されたすりの搬出方法としては、ポンプサクシ
ョン方式またはエアリフト方式などによるがよい。
The excavated pickpockets may be carried out by a pump suction method or an air lift method.

したがって、本考案の連続壁打設用掘削機は、形鋼柱間
をガイドウールとして昇降するブーム支持枠と、このブ
ーム支持枠にピンによって揺動可能に下向きに取付けら
れたブームと、このブームの下先端に設けられた回転式
の掘削用カッタとを備えているから、掘削機の昇降は両
端の鉛直な形鋼柱をガイドとしてなされ、精度のよい掘
削ができるうえ、掘削は既に地中に強固に設置された形
鋼柱に対してブーム支持枠を固定してから行なうため、
すなわち、ブーム支持枠を伸縮させて形鋼柱間隔に合せ
て該支持枠を最適な長さにし、かつ、両端部に設けられ
たグリッパを掘削溝の幅方向に伸長させて該グリッパの
足で該支持枠を形鋼柱に確実に強固に固定し7てから回
転式の掘削用カッタを回転させて掘削を行なうため、地
層の不均等な硬軟等による機械全体の傾斜や、その結果
としての溝孔の曲りが生ずるようなことがなく、シかも
、この掘削機によって掘削された溝孔は、それ以−Lに
手を加える必要がなく、そのままコンクリート壁打設が
可能な形に仕上るので、能率的である。
Therefore, the continuous wall driving excavator of the present invention includes a boom support frame that moves up and down between the shaped steel columns as a guide wool, a boom that is attached to the boom support frame so as to be able to swing downward with a pin, and a boom Since the excavator is equipped with a rotary excavation cutter installed at the bottom end, the excavator can be raised and lowered using the vertical steel columns at both ends as a guide, allowing for highly accurate excavation. Since the boom support frame is fixed to the shaped steel column firmly installed in the
In other words, the boom support frame is expanded and contracted to make it the optimal length according to the spacing of the shaped steel columns, and the grippers provided at both ends are extended in the width direction of the excavation groove, and the legs of the grippers are Since the support frame is securely and firmly fixed to the shaped steel column and then the rotary excavation cutter is rotated to perform the excavation, there is a possibility that the entire machine may be tilted due to uneven hardness or softness of the strata, or as a result. There will be no bending of the trench, and the trench dug by this excavator will not require any further modification, and will be finished in a shape that can be used for pouring concrete walls. , efficient.

とくに、軟弱地層などの場合は、前記ブームの固定を、
そのブーム支持枠の伸長だけによろうとすると、形鋼柱
がその伸長方向に倒れるおそれがあるので、ブーム支持
枠の伸長は適当に行ない、あとはグツツバがその直角方
向に形鋼柱を押すから、つまり、グリッパは相殺される
2つの押力で形鋼柱をその足で押すから、形鋼柱はそれ
を内力として杭するだけで、地層には影響がないので、
軟弱地層でも、ブームがブーム支持枠とグリッパを介し
て形鋼柱に固定されて確実な掘削が可能どなる。
In particular, in the case of soft geological formations, it is necessary to fix the boom.
If you try to rely only on the extension of the boom support frame, there is a risk that the shaped steel column will fall in the direction of extension, so make sure to extend the boom support frame appropriately, and the rest will push the shaped steel column in the direction perpendicular to it. In other words, the gripper pushes the shaped steel column with its legs with two pushing forces that cancel each other out, so the shaped steel column only uses this as an internal force to pile up, and it has no effect on the strata.
Even in soft geological formations, the boom is fixed to the shaped steel column via the boom support frame and gripper, making it possible to excavate reliably.

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

第1図は従来の垂直円形ポーリング機械によって掘削さ
れた溝孔の平面図、第2図は第1図の縦断正面図、第3
図は本考案の第1実施例の縦断正面図、第4図は第3図
の一部切断平面図、第5図は第3図の一部切断側面図、
第6図は本考案の第2実施例の縦断正面図、第7図は第
6図の一部切断平面図、第8図は第6図の一部切断側面
図である。 1.1′・・・・・・カッタ、2・・・・・・ブーム、
3・・・・・・ブーム支持枠、4・・・・・・グリッパ
、5・・・・・・足、6・・・・・・油圧シリンダ、7
・・・・・・ワイヤロープ、8・・・・・・ウィンチ、
9・・・・・・ピン、10・・・・・・H形鋼柱、11
・・・・・・サクションパイプ、12・・・・・・ガイ
ドウオール。
Fig. 1 is a plan view of a trench drilled by a conventional vertical circular poling machine, Fig. 2 is a longitudinal sectional front view of Fig. 1, and Fig.
The figure is a longitudinal sectional front view of the first embodiment of the present invention, FIG. 4 is a partially cutaway plan view of FIG. 3, and FIG. 5 is a partially cutaway side view of FIG. 3.
6 is a longitudinal sectional front view of a second embodiment of the present invention, FIG. 7 is a partially cutaway plan view of FIG. 6, and FIG. 8 is a partially cutaway side view of FIG. 6. 1.1'...Cutter, 2...Boom,
3...Boom support frame, 4...Gripper, 5...Legs, 6...Hydraulic cylinder, 7
...Wire rope, 8...Winch,
9... Pin, 10... H-shaped steel column, 11
...Suction pipe, 12...Guide wall.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 立設された一対の形鋼柱をガイドレールとして該形鋼柱
間を昇降し得るとともに長手方向に伸縮可能なブーム支
持枠と、このブーム支持枠の両端部に各別に設けられて
該ブーム支持枠の伸縮方向に対して直角方向に伸縮可能
にして前記各形鋼を掘削溝の幅方向に押し付ける足を有
して該ブーム支持枠を固定するグリッパと、該ブーム支
持枠にピンによって揺動可能に下向きに取付けられたブ
ームと、このブームの下先端に設けられた回転式の掘作
用カッタとからなる、連続壁打設用掘削機。
A boom support frame that can be moved up and down between the vertically erected shaped steel columns using a pair of erected shaped steel columns as guide rails and can be expanded and contracted in the longitudinal direction; a gripper that fixes the boom support frame by having legs that are expandable and retractable in a direction perpendicular to the direction of expansion and contraction of the frame and that presses each section steel in the width direction of the excavation groove; and a gripper that fixes the boom support frame by means of a pin. An excavator for continuous wall driving, consisting of a boom that can be mounted downward, and a rotary excavation cutter installed at the bottom end of the boom.
JP6383482U 1982-05-04 1982-05-04 Excavator for continuous wall pouring Expired JPS5830840Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6383482U JPS5830840Y2 (en) 1982-05-04 1982-05-04 Excavator for continuous wall pouring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6383482U JPS5830840Y2 (en) 1982-05-04 1982-05-04 Excavator for continuous wall pouring

Publications (2)

Publication Number Publication Date
JPS57202437U JPS57202437U (en) 1982-12-23
JPS5830840Y2 true JPS5830840Y2 (en) 1983-07-07

Family

ID=29859924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6383482U Expired JPS5830840Y2 (en) 1982-05-04 1982-05-04 Excavator for continuous wall pouring

Country Status (1)

Country Link
JP (1) JPS5830840Y2 (en)

Also Published As

Publication number Publication date
JPS57202437U (en) 1982-12-23

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