JPH0428049B2 - - Google Patents
Info
- Publication number
- JPH0428049B2 JPH0428049B2 JP10275787A JP10275787A JPH0428049B2 JP H0428049 B2 JPH0428049 B2 JP H0428049B2 JP 10275787 A JP10275787 A JP 10275787A JP 10275787 A JP10275787 A JP 10275787A JP H0428049 B2 JPH0428049 B2 JP H0428049B2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- support rods
- rod members
- excavation
- vertical direction
- 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
Links
- 238000009412 basement excavation Methods 0.000 claims description 25
- 239000000725 suspension Substances 0.000 claims description 13
- 238000005553 drilling Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 230000001595 contractor effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 14
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Bulkheads Adapted To Foundation Construction (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、地上から地中に一定幅をもつた深
い溝を堀削し、この中にコンクリートないし鉄筋
コンクリートからなる連続壁を構築していく、い
わゆる連続地中壁工法における堀削装置に関連す
るものである。[Detailed Description of the Invention] [Industrial Application Field] This invention involves digging a deep trench of a certain width from ground level into the ground, and constructing a continuous wall made of concrete or reinforced concrete in the trench. This is related to the excavation equipment used in the so-called continuous underground wall construction method.
特にその堀削装置を懸吊支持する支持ロツドの
接続長さを調整する方法とその装置に関するもの
である。 In particular, the present invention relates to a method and apparatus for adjusting the connection length of a support rod that suspends and supports the excavation device.
連続地中壁を構築する場合に使用される堀削装
置の懸吊支持形式としては、汎用クレーンのワイ
ヤーロープで直接懸吊する方式と、堀削深さに応
じて順にロツド部材を継ぎ足していくように構成
した複数本の支持ロツドで懸吊する方式とがあ
る。
The methods of suspending and supporting the excavation equipment used when constructing a continuous underground wall include directly suspending it with a wire rope from a general-purpose crane, and adding rod members in order according to the excavation depth. There is a method in which it is suspended using a plurality of support rods configured as shown below.
この発明は、上記継ぎ足し形式にした支持ロツ
ドを用いて懸吊するように構成した懸吊方式にお
いて、支持ロツドの接続長さを調整する方法と、
この方法を実施するための装置を提供することを
目的として開発したものである。 This invention provides a method for adjusting the connection length of the support rods in a suspension system configured to suspend using the above-mentioned supplementary support rods;
This method was developed for the purpose of providing an apparatus for carrying out this method.
一般に堀削装置を継ぎ足し形式の支持ロツドを
介して懸吊支持するように構成したものにあつて
は、第３図および第４図で示すように、堀削装置
Ａと懸吊治具Ｂとの間を、複数本、図示の場合は
第４図で示すように、三本の支持ロツドC1，C2
およびＤで接続して保持し、懸吊するように構成
されているのが普通である。 Generally, when the excavating device is configured to be suspended and supported via a supplementary support rod, as shown in FIGS. 3 and 4, the excavating device A and the suspension jig B are As shown in FIG. 4, a plurality of support rods C 1 , C 2
It is usually configured to be connected and held at and suspended.
もちろん、この三本の支持ロツドC1，C2およ
びＤは、それぞれ一定長さのロツド部材C1a，C1b
…，C2a，C2b…およびD1，D2…を接続して構成
されている。 Of course, these three support rods C 1 , C 2 and D are connected to rod members C 1a and C 1b of constant length, respectively.
..., C 2a , C 2b ... and D 1 , D 2 ... are connected.
そのため上記各ロツド部材C1a，C1b…，C2a，
C2b…およびD1，D2…は、両端にそれぞれ接続用
フランジを有する構造用鋼管などの管材で構成さ
れている。 Therefore, each of the above rod members C 1a , C 1b ..., C 2a ,
C 2b ... and D 1 , D 2 ... are constructed of pipe materials such as structural steel pipes each having a connecting flange at both ends.
なお、前記第３図および第４図で示す従来例に
おいては、三本の支持ロツドC1，C2およびＤの
内、中央に位置する支持ロツドＤは、堀削したズ
リと安定液（ベントナイト液等）との混合液を排
出するための排出管とし、また左右の支持ロツド
C1，C2は、それぞれ堀削深さや垂直度の計測用
ケーブルや堀削装置Ａの駆動用電気ケーブル等の
誘導管として兼用するように構成されている。 In the conventional example shown in FIGS. 3 and 4, the support rod D located in the center of the three support rods C 1 , C 2 and D is filled with excavated sludge and stabilizing liquid (bentonite). It is used as a discharge pipe to discharge the mixed liquid (e.g. liquid, etc.), and the left and right support rod
C 1 and C 2 are configured to serve as guiding pipes for measurement cables for digging depth and perpendicularity, electric cables for driving the excavation device A, and the like, respectively.
堀削装置Ａは、２組のドラムカツタを対向させ
て組み合わせ、堀削反力を相殺する構成となつて
いる。 The excavation device A is configured to combine two sets of drum cutters facing each other to offset the excavation reaction force.
Ｅは仮設やぐらで、前記堀削時における深さや
垂直度の計測作業等を行うためのものである。 E is a temporary tower used for measuring depth and perpendicularity during the excavation process.
なお、前記支持ロツドC1，C2およびＤの継ぎ
足し接続は、堀削装置Ａによる堀進が、ロツド部
材C1a，C1b…，C2a，C2b…，D1，D2…のほぼ１
本分の深さ進んだところで、懸吊治具Ｂと支持ロ
ツドC1，C2およびＤとをそれぞれ切り離し、つ
いで懸吊治具Ｂを吊り上げたところで、前記ロツ
ド部材を懸吊治具Ｂと直下の支持ロツドC1a，C2a
およびD1との間にそれぞれ介装し接続する。 In addition, in the additional connection of the support rods C 1 , C 2 and D, the excavation by the excavation device A is approximately the same as that of the rod members C 1a , C 1b ..., C 2a , C 2b ..., D 1 , D 2 ... 1
When the depth of the work has progressed, the suspension jig B and the support rods C 1 , C 2 and D are separated, and when the suspension jig B is lifted, the rod members are separated from the suspension jig B. Support rods directly below C 1a , C 2a
and D 1 respectively.
以下堀削が、ロツド部材C1a，C2a，D1の１ス
パンに相当する深さに到達する度に継ぎ足しを繰
返して行うものである。 Thereafter, each time the excavation reaches a depth corresponding to one span of the rod members C 1a , C 2a , and D 1 , addition is repeated.
以上のように従来の連続地中壁における堀削装
置は、堀削の深度に応じて継ぎ足しを行うように
した複数本の支持ロツドで保持するように構成さ
れているため、次のような問題点があつた。
As mentioned above, conventional excavation equipment for continuous underground walls is configured to be supported by multiple support rods that are supplemented according to the depth of excavation, which causes the following problems. The dot was hot.
すなわち、支持ロツドが複数本であること、し
かも、それら複数本の支持ロツドは、それぞれ単
位ロツド部材の継ぎ足しにより構成されたもので
あること、この２つの理由から、各支持ロツドの
軸方向の長さを完全に一致させることが技術的に
困難であるという問題点があつた。 In other words, there are multiple support rods, and each of these multiple support rods is constructed by adding unit rod members.For these two reasons, the axial length of each support rod is There was a problem in that it was technically difficult to match the values completely.
前記従来事例で言えば、三本の支持ロツドC1，
C2およびＤに、それぞれ単位ロツド部材を接続
した場合、その接続長さを完全に一致したものと
することは出来ないということである。 In the conventional case, three support rods C 1 ,
This means that when unit rod members are connected to C2 and D, the connection lengths cannot be made completely the same.
第５図イ，ロ，ハは、その結果もたらされる弊
害をやや誇張して示したものであるが、イは接続
長さが不一致のため、すなわち不揃いのため堀削
装置Ａが傾斜状態となつた、ロは支持ロツドC1，
C2が変形をした、ハは懸吊治具Ｂが傾斜した場
合のそれぞれを例示するものである。 Figure 5 A, B, and C are slightly exaggerated illustrations of the resulting disadvantages. , B is the support rod C 1 ,
C 2 is deformed and C exemplifies the case where the hanging jig B is tilted.
このように支持ロツドC1，C2およびＤの接続
長さに誤差が生じ、前記イ，ロ，ハのようにアン
バランスの状態で堀削装置Ａを保持したまま、ト
レンチの掘削を行えば、当然能率的な堀削作業が
できないばかりか、特に掘削したトレンチの垂直
精度に狂いが生じ、構築される地中連続壁が傾斜
した壁となつたり、また、その程度によつては全
く目的にそぐわない壁となつてしまうこともあ
る。 In this way, an error occurs in the connection lengths of the support rods C 1 , C 2 and D, and if the trench is excavated while holding the excavation device A in an unbalanced state as shown in A, B, and C above, Naturally, not only is it not possible to carry out efficient excavation work, but the vertical accuracy of the excavated trench may become inconsistent, and the underground continuous wall to be constructed may become a sloping wall, or depending on the extent, it may not be possible to carry out the purpose at all. Sometimes it becomes a wall that doesn't suit your needs.
特にこの弊害は、堀削深さが深くなればなるほ
ど顕著となり、垂直精度の確保に大きく影響を与
えることとなる。 In particular, this adverse effect becomes more pronounced as the excavation depth increases, and it greatly affects ensuring vertical accuracy.
本発明は、このような弊害、問題点を解消する
ため、堀削装置を保持する複数本の支持ロツド
が、その接続長さにアンバランスがあつても、そ
の長さの不揃いを簡単に吸収して、前記弊害を解
決する方法と、この方法を実施する装置を開発し
たものである。 In order to eliminate such disadvantages and problems, the present invention has been developed to easily absorb the unbalanced lengths of the plurality of support rods that hold the excavating device, even if their connection lengths are unbalanced. Therefore, we have developed a method for solving the above-mentioned problems and a device for implementing this method.
上記問題点を解決する方法、手段として本発明
は、まず連続地中壁を構築するための堀削装置
を、継ぎ足し形式のロツド部材からなる複数本の
支持ロツドで懸吊支持するに際し、各支持ロツド
の上端部に、上下方向に伸縮作動する操作シリン
ダを対応して設け、この各操作シリンダの上下方
向伸縮作動により、各支持ロツドの接続長さのバ
ラツキを吸収してバランスさせるようにしたこと
を特徴とするものである。
As a method and means for solving the above-mentioned problems, the present invention first involves suspending and supporting an excavation device for constructing a continuous underground wall using a plurality of support rods made up of connecting rod members. Operation cylinders that extend and contract in the vertical direction are provided at the upper ends of the rods, and the vertical extension and contraction of each operation cylinder absorbs and balances variations in the connection lengths of the support rods. It is characterized by:
さらにこの方法を実施するための装置として、
支持ロツドの上端部を着脱自在に接続するロツド
部材の複数本を、懸吊治具を構成する枠内に上下
方向に移動自在に組み込むとともに、さらに枠内
の前記複数本のロツド部材に、それぞれ対応して
上下方向に伸縮作動する操作シリンダを内装し、
その操作シリンダの各下端部を、前記枠内に枢軸
をもつて連結するとともに、他方ピストンロツド
を前記ロツド部材にそれぞれ連結し、かつ各操作
シリンダを並列の作動流体回路をもつて接続した
堀削装置支持ロツドの接続長さ調整装置に構成し
たことを特徴とするものである。 Furthermore, as a device for carrying out this method,
A plurality of rod members that removably connect the upper ends of the support rods are incorporated in a frame constituting the suspension jig so as to be movable in the vertical direction, and each of the plurality of rod members in the frame is Equipped with an operating cylinder that expands and contracts in the vertical direction,
A drilling device in which the lower ends of each of the operating cylinders are connected to the frame by a pivot, the other piston rod is connected to the rod member, and each of the operating cylinders is connected through a parallel working fluid circuit. The present invention is characterized in that it is configured as a connection length adjustment device for a support rod.
本発明による堀削装置支持ロツドの接続長さ調
整方法およびその装置は、前記したように、複数
本の支持ロツドそれぞれに、上下方向に伸縮作動
する操作シリンダを対応して設け、この操作シリ
ンダの上下方向の伸縮作動により、各支持ロツド
の接続長さの誤差を吸収するものであるため、き
わめて誤差の修正が簡単にできる。
As described above, in the method and device for adjusting the connection length of excavation equipment support rods according to the present invention, each of the plurality of support rods is provided with an operation cylinder that expands and contracts in the vertical direction, and the operation cylinder is Errors in the connection length of each support rod are absorbed by the vertical expansion and contraction operation, so errors can be corrected very easily.
その結果、支持ロツドの接続長さの誤差、すな
わち不揃いに基づく堀削装置の傾斜や、支持ロツ
ドの変形あるいは支持ロツドの懸吊治具の傾きな
ど、いわゆる連続地中壁を構築するためのトレン
チ堀削にきわめて最適な堀削装置として機能させ
ることができる。 As a result, errors in the connection length of the support rods, such as the inclination of the excavation equipment due to irregularities, the deformation of the support rods, or the inclination of the suspension jig of the support rods, etc., may occur in trenches for constructing so-called continuous underground walls. It can function as an extremely optimal excavation device for excavation.
さらに本発明を、支持ロツドの接続長さ調整装
置として構成した場合の実施例に基づいて具体的
に説明する。
Further, the present invention will be specifically explained based on an embodiment in which the present invention is configured as a connection length adjustment device for a support rod.
まず第１図は、三本の支持ロツドC1，C2およ
びＤにより堀削装置Ａを懸吊支持する全体構造の
一部を縦断して示すものである。 First, FIG. 1 shows a part of the entire structure in which the excavating apparatus A is suspended and supported by three support rods C 1 , C 2 and D, in a longitudinal section.
この図で、Ｂは前記三本の支持ロツドC1，C2
およびＤのそれぞれ上端部を接続する懸吊治具で
ある。なお各三本の支持ロツドC1，C2およびＤ
は、前記したようにロツド部材C1a…，C2a…およ
びD1…の継ぎ足しによるもので、それぞれの端
部に設けた接続用フランジ１を利用して接続され
るようになつている。 In this figure, B is the three support rods C 1 and C 2
This is a hanging jig that connects the upper ends of and D, respectively. In addition, each of the three support rods C 1 , C 2 and D
As described above, the rod members C 1a . . . , C 2a . . . and D 1 .
ところで本発明の支持ロツド接続長さ調整装置
は、三本の支持ロツドC1，C2およびＤの上端部
を接続する懸吊治具Ｂに組み付けたことを特徴と
するもので、懸吊治具Ｂを構成する枠内に、第１
図で示すようにロツド部材２C1，２C2および２
D1の三本を、それぞれ上下方向に移動自在に組
み込むとともに、これに上下方向に伸縮作動する
操作シリンダ３を、それぞれ対応して内装させて
ある。 By the way, the support rod connection length adjustment device of the present invention is characterized in that it is assembled to a suspension jig B that connects the upper ends of three support rods C 1 , C 2 and D. In the frame constituting ingredient B, the first
As shown in the figure, rod members 2C 1 , 2C 2 and 2
Three cylinders D 1 are installed so as to be movable in the vertical direction, and operation cylinders 3 that extend and contract in the vertical direction are respectively installed inside the cylinders.
なお、この実施例ではロツド部材２C1，２C2
および２D1の上下方向の作動をバランスよく行
わせるために、ロツド部材２C1，２C2および２
D1それぞれに、１対の操作シリンダ３，３を対
応して連結させた構成としてある。 In addition, in this embodiment, the rod members 2C 1 and 2C 2
and 2D 1 in a well-balanced manner in the vertical direction, rod members 2C 1 , 2C 2 and 2
A pair of operating cylinders 3, 3 are connected to each of D1 in a corresponding manner.
すなわち懸吊治具Ｂの枠内に内装した操作シリ
ンダ３のそれぞれのシリンダ３の下端部を、枢軸
４をもつて枠５に連結し、他方ピストンロツド３
ａの先端部を、前記ロツド部材２C1，２C2およ
び２D1にそれぞれ連結し、操作シリンダ３の作
動によりロツド部材２C1，２C2および２D1が上
下方向に作動できる構成として懸吊治具Ｂに組み
込まれている。 That is, the lower end of each cylinder 3 of the operating cylinder 3 housed within the frame of the suspension jig B is connected to the frame 5 with a pivot 4, and the other piston rod 3
The suspension jig has a configuration in which the tip portions of a are connected to the rod members 2C 1 , 2C 2 and 2D 1 , respectively, and the rod members 2C 1 , 2C 2 and 2D 1 can be operated in the vertical direction by the operation of the operation cylinder 3. It is incorporated in B.
なお、実施例において操作シリンダ３，３…は
油圧操作シリンダをもつて構成し、第２図はその
油圧回路である。 In the embodiment, the operating cylinders 3, 3, . . . are constituted by hydraulic operating cylinders, and FIG. 2 shows the hydraulic circuit thereof.
各ロツド部材２C1，２C2および２D1にそれぞ
れ連係させた１対の操作シリンダ３，３同士は、
それぞれ入力側、出力側を連通管６で接続し、さ
らに各対の操作シリンダ３，３も連通管７で接続
し、並列接続した閉回路よりなる油圧回路をもつ
て構成してある。 A pair of operating cylinders 3, 3 linked to each rod member 2C 1 , 2C 2 and 2D 1 are as follows:
The input side and the output side are respectively connected by a communication pipe 6, and each pair of operating cylinders 3, 3 are also connected by a communication pipe 7, thereby forming a hydraulic circuit consisting of a closed circuit connected in parallel.
そして各対の操作シリンダ３，３には安全弁と
してのリリーフバルブ８をそれぞれ接続するとと
もに、回路途中にアキユムレータ９を設け、操作
シリンダ３，３の上方の作動油を吸収できるよう
に構成してある。 A relief valve 8 as a safety valve is connected to each pair of operating cylinders 3, 3, and an accumulator 9 is provided in the middle of the circuit, so that the hydraulic oil above the operating cylinders 3, 3 can be absorbed. .
１０は、操作シリンダ３，３の下側の作動油が
不足した場合、その作動油を補給するための手動
ポンプであり、１１はストツプバルブ、１２はチ
エツクバルブである。 10 is a manual pump for replenishing the hydraulic oil below the operating cylinders 3, 3 when the hydraulic oil is insufficient, 11 is a stop valve, and 12 is a check valve.
本発明による支持ロツドの接続長さ調整装置
は、以上実施例で示したように構成されているた
め、堀削装置Ａを懸吊支持する支持ロツドC1，
C2およびＤに、順にロツド部材C1a，C1b…，C2a，
C2b…，およびD1，D2…を継ぎ足し接続して、そ
の長さを延ばしていつた場合、その接続長さに誤
差があつても、その誤差は各支持ロツドC1，C2
およびＤの上端部を接続する懸吊治具Ｂ内のロツ
ド部材２C1，２C2および２D1に連係させた上下
方向に伸縮作動する操作シリンダ３，３…により
吸収されるので、自動的にバランスされる。 Since the support rod connection length adjusting device according to the present invention is constructed as shown in the embodiments above, the support rods C 1 ,
To C 2 and D, rod members C 1a , C 1b ..., C 2a ,
If C 2b ..., D 1 , D 2 ... are added and connected to increase their length, even if there is an error in the connection length, the error will be applied to each support rod C 1 , C 2
It is automatically absorbed by the operation cylinders 3, 3... which extend and contract in the vertical direction and are linked to the rod members 2C 1 , 2C 2 and 2D 1 in the suspension jig B that connects the upper ends of D and D. balanced.
本発明方法および装置は、以上説明したように
継ぎ足し形式の支持ロツドの接続長さを軸方向に
伸縮作動する操作シリンダによつて吸収させるよ
うにしたものであるため、従来みられたように、
支持ロツドに偏荷重が作用したり、堀削装置が傾
いたりすることがない。すなわち常にバランスし
た状態で堀削装置を懸吊支持することができる。
その結果堀削装置は常に垂直軸方向の堀削作業を
維持し、精度の高いトレンチを構成することがで
きるものである。
The method and apparatus of the present invention, as explained above, are adapted to absorb the connecting length of the supplementary type support rod by the operation cylinder that is telescopically operated in the axial direction, so that it is possible to
No unbalanced load is applied to the support rod and no tilting of the excavation equipment occurs. In other words, the excavating device can be suspended and supported in a balanced state at all times.
As a result, the excavating device can always maintain the excavating operation in the vertical axis direction and can construct trenches with high precision.
実施例図の第１図は本発明方法を実施する装置
を組み込んだ堀削装置支持ロツドの全体構造を示
す一部縦断正面図、第２図は装置の油圧回路図、
第３図は従来の一般的なトレンチ堀削装置の概略
を示す全体構造の側面図、第４図は同じく正面
図、第５図は支持ロツドの接続長さの不揃いによ
る弊害を説明するための説明図である。
Ａ……堀削装置、Ｂ……懸吊治具、C1，C2，
Ｄ……支持ロツド、１……フランジ接手、２C1，
２C2，２D1……ロツド部材、３……操作シリン
ダ、３ａ……ピストンロツド、４……枢軸、５…
…枠、６……連通管、７……連通管、８……リリ
ーフバルブ、９……アキユムレータ、１０……手
動ポンプ、１１……ストツプバルブ、１２……チ
エツクバルブ。
FIG. 1 of the embodiment diagrams is a partially longitudinal front view showing the overall structure of a drilling device support rod incorporating a device for carrying out the method of the present invention, and FIG. 2 is a hydraulic circuit diagram of the device.
Fig. 3 is a side view of the overall structure of a conventional general trench excavation device, Fig. 4 is a front view of the same, and Fig. 5 is a diagram illustrating the adverse effects caused by uneven connection lengths of support rods. It is an explanatory diagram. A...Drilling device, B...Hanging jig, C 1 , C 2 ,
D...Support rod, 1...Flange joint, 2C 1 ,
2C 2 , 2D 1 ... Rod member, 3 ... Operation cylinder, 3a ... Piston rod, 4 ... Pivot, 5 ...
... Frame, 6 ... Communication pipe, 7 ... Communication pipe, 8 ... Relief valve, 9 ... Accumulator, 10 ... Manual pump, 11 ... Stop valve, 12 ... Check valve.
Claims (1)
ぎ足し形式のロツド部材からなる複数本の支持ロ
ツドで懸吊支持するに際し、各支持ロツドの上端
部に、上下方向に伸縮作動する操作シリンダを対
応して設け、この各操作シリンダの上下方向伸縮
作動により、各支持ロツドの接続長さのバラツキ
を吸収してバランスさせるようにしたことを特徴
とする連続地中壁工法における堀削装置支持ロツ
ドの接続長さ調整方法。 ２ 支持ロツドの上端部を着脱自在に接続するロ
ツド部材の複数本を、懸吊治具を構成する枠内に
上下方向に移動自在に組み込むとともに、さらに
枠内の前記複数本のロツド部材に、それぞれ対応
して上下方向に伸縮作動する操作シリンダを内装
し、この操作シリンダの各下端部を、前記枠内に
枢軸をもつて連結するとともに、他方ピストンロ
ツドを前記ロツド部材にそれぞれ連結し、かつ各
操作シリンダを並列の作動流体回路をもつて接続
したことを特徴とする懸吊治具を有する堀削装置
支持ロツドの接続長さ調整装置。[Scope of Claims] 1. When an excavation device for constructing a continuous underground wall is suspended and supported by a plurality of support rods made up of supplementary rod members, the top end of each support rod is provided with a vertical direction. A continuous underground wall characterized in that operating cylinders that extend and contract are provided in correspondence with each other, and the vertically extending and contracting action of each operating cylinder absorbs and balances variations in the connection length of each support rod. How to adjust the connection length of the drilling equipment support rod in the construction method. 2. A plurality of rod members that removably connect the upper ends of the support rods are incorporated in a frame constituting the suspension jig so as to be movable in the vertical direction, and the plurality of rod members in the frame are further provided with: Operating cylinders that extend and contract in the vertical direction are respectively installed, and the lower ends of the operating cylinders are connected to the frame by pivots, and the other piston rods are connected to the rod members, respectively. 1. A connection length adjustment device for an excavation equipment support rod having a suspension jig, characterized in that operating cylinders are connected through parallel working fluid circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10275787A JPS63268813A (en) | 1987-04-24 | 1987-04-24 | Method and apparatus for regulating connecting length of excavator supporting rod in continuous underground wall construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10275787A JPS63268813A (en) | 1987-04-24 | 1987-04-24 | Method and apparatus for regulating connecting length of excavator supporting rod in continuous underground wall construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63268813A JPS63268813A (en) | 1988-11-07 |
| JPH0428049B2 true JPH0428049B2 (en) | 1992-05-13 |
Family
ID=14336075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10275787A Granted JPS63268813A (en) | 1987-04-24 | 1987-04-24 | Method and apparatus for regulating connecting length of excavator supporting rod in continuous underground wall construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63268813A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2911553T3 (en) * | 2019-04-04 | 2022-05-19 | Bauer Maschinen Gmbh | Diaphragm wall milling device and method for milling a milling trench in the ground |
-
1987
- 1987-04-24 JP JP10275787A patent/JPS63268813A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63268813A (en) | 1988-11-07 |
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