JPS6319328A - Method and apparatus for constructing turning-penetrating type large-diameter steel tube - Google Patents
Method and apparatus for constructing turning-penetrating type large-diameter steel tubeInfo
- Publication number
- JPS6319328A JPS6319328A JP16198886A JP16198886A JPS6319328A JP S6319328 A JPS6319328 A JP S6319328A JP 16198886 A JP16198886 A JP 16198886A JP 16198886 A JP16198886 A JP 16198886A JP S6319328 A JPS6319328 A JP S6319328A
- Authority
- JP
- Japan
- Prior art keywords
- casing
- excavation
- press
- rotational force
- excavating
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 title claims description 7
- 239000010959 steel Substances 0.000 title claims description 7
- 238000009412 basement excavation Methods 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000010276 construction Methods 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 10
- 239000003673 groundwater Substances 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 3
- 230000035515 penetration Effects 0.000 abstract 2
- 238000012856 packing Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、建築、土木の基礎工事に使用する大口径−管
杭などの鋼管類（以下ケーシングと称す）を回転圧入す
る工法とその装置に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a method and apparatus for rotary press-fitting of steel pipes (hereinafter referred to as casings) such as large-diameter pipe piles used in construction and civil engineering foundation work. Regarding.
（従来の技術）
ケーシングを建込む場合、ケーシング内の土砂を掘削し
排土するため、アースドリルのような専用の掘削機を用
いない公知の工法として、特公昭３３−３０８５、同６
１−４９５７、同６１−６２３６の各号公報中に開示さ
れている工法がある。この公知の工法は、例えばクレー
ンによりケリーバと回転式バケットからなる中掘り用掘
削具をケーシング内に吊り込み、ケーシングの頂部に取
付けた回転駆動装置によって前記掘削具を回転させるこ
とにより、ケーシング内の土砂の掘削を行ないながら、
ケーシングを非回転で圧入する工法である。(Prior art) When constructing a casing, the earth and sand inside the casing is excavated and removed, so there is a known construction method that does not use a special excavator such as an earth drill.
There are construction methods disclosed in Publications No. 1-4957 and No. 61-6236. In this known construction method, for example, a crane is used to suspend an excavating tool for digging inside the casing, and the excavating tool is rotated by a rotary drive device attached to the top of the casing. While excavating earth and sand,
This is a construction method in which the casing is press-fitted without rotation.
この公知の工法は、専用機が不要となる他、専用の掘削
機のような排出高さの制限を受けないという利点がある
。しかし、ケーシングを非回転で圧入している（これは
、ゲージングを回転させると、ケーシング内の土砂がケ
ーシング内面との周面庁擦によって伴回りしてしまい、
バケットによる掘削が行なえなくなるので、ケーシング
は非回転として掘削具のみを回転させるようにしたもの
である。）ので、硬い地盤へのケーシングの建込みが困
難であった。また、前記公報に開示された装置は、中掘
り用掘削具を回転させる駆動装置をケーシングの頂部の
高い位置に設置しなければならないため、油圧ホースも
しくはキャブタイヤケーブルのさばきが困難であり、作
業上の邪魔になるという難点がある。また、中掘り用掘
削具の駆動装置が大がかりであるため、ケーシングの継
ぎ足しのたびに大作業となり、吟間的な損失を生じると
共に、作業の安全性の面からも問題であった。This known construction method has the advantage that it does not require a special-purpose machine and is not subject to the discharge height limitations of a special-purpose excavator. However, the casing is press-fitted without rotating (this is because when the gauging is rotated, the earth and sand inside the casing are rotated around by friction with the inner surface of the casing,
Since it is no longer possible to excavate with a bucket, the casing is made non-rotatable and only the excavator is rotated. ), making it difficult to erect the casing on hard ground. In addition, with the device disclosed in the above publication, the drive device that rotates the digging tool for digging must be installed at a high position on the top of the casing, which makes it difficult to handle the hydraulic hose or cabtyre cable, making it difficult to handle the work. The problem is that it gets in the way of the top. In addition, since the driving device for the excavator for deep digging is large-scale, each time the casing is added, it becomes a big job, resulting in a considerable loss of time, and also poses a problem in terms of work safety.
（発明が解決しようとする問題点）
本発明は、上記の点に鑑み、据付は式のケーシングの回
転圧入装置を利用することにより、硬い地盤にもケーシ
ングの建込みが行なえるようにし、さらにケーシング内
土砂の伴回りを防止して効率良く中掘り掘削が行なえる
回転圧入式大口径鋼管状建込み工法を提供することを目
的とする。(Problems to be Solved by the Invention) In view of the above points, the present invention makes it possible to install the casing even on hard ground by using a rotary press-fitting device for the casing, and further The purpose of the present invention is to provide a rotary press-fit type large-diameter steel tubular construction method that can efficiently perform medium excavation by preventing earth and sand from moving around inside the casing.
また、本発明は、ケーシング頂部に中掘り用掘削具を駆
動する装置を設置する必要をなくし、安全にかつ作業能
率良く建込み作業が行なえる回転圧入式大口径鋼管杭建
込み装置を提供することを目的とする。Further, the present invention provides a rotary press-fit type large-diameter steel pipe pile erecting device that eliminates the need to install a device for driving an excavating tool on the top of the casing, and can perform erecting work safely and efficiently. The purpose is to
（問題点を解決するための手段）
この目的を達成するため、本発明による第１の工法は、
ケーシングを回転または揺動させながら先行圧入した後
、一旦先行圧入前の状態まで引き上げ、その位置でケー
シングを回転させると同時に、ケーシングの回転力を中
掘り用掘削具に伝達して回転させることにより、ケーシ
ングを先行圧入した部分の土砂を掘削し、該掘削具をケ
ーシングより引き抜いて地上にて排土し、再びケーシン
グを先行圧入することを繰返えしなからケーシングを建
込んでいくことを特徴とするものであり、この工法によ
れば、ケーシングを回転させると同時に掘削具を回転さ
せるといえども、掘削具はケーシング下端より深い部分
を掘削するから、ケーシングの伴回りの影響なく掘削が
行なえる。(Means for solving the problem) In order to achieve this objective, the first construction method according to the present invention is as follows:
After the casing is press-fitted while rotating or swinging, the casing is pulled up to the state before the pre-press-fitting, and the casing is rotated at that position, and at the same time, the rotational force of the casing is transmitted to the excavation tool to rotate it. , excavate the earth and sand in the area where the casing was previously press-fitted, pull out the excavation tool from the casing, remove the earth on the ground, and repeat the process of previously press-fitting the casing again before erecting the casing. According to this method, even though the casing is rotated and the excavation tool is rotated at the same time, the excavation tool excavates deeper than the lower end of the casing, so the excavation can be carried out without being affected by the trailing rotation of the casing. I can do it.
また、本発明による第２の工法は、前記ケーシングの回
転力を伝達することにより回転する中掘り用掘削具によ
ってケーシングに先行して掘削を行ない、ある一定の深
さまで掘削を行なった後、掘削具をその位置に留め、前
記掘削具による掘削深さまでケーシングのみを回転また
は揺動させながら圧入し、再び掘削具をケーシングに先
行させて掘削を行なうことを繰返しながらケーシングを
建込んでいくと共に、ケーシング内に水を張って地下水
位に対して常に水頭差を持たせるようにして施工するこ
とを特徴とする工法であり、この工法によれば、前記と
同様に伴回りが防止される以外に、水により孔壁の崩壊
を防止することができる。In addition, in the second construction method according to the present invention, excavation is performed in advance of the casing using a medium digging excavator that rotates by transmitting the rotational force of the casing, and after excavation is performed to a certain depth, the excavation is performed. Holding the tool in that position, press-fit only the casing while rotating or swinging until the depth of excavation by the excavation tool, and repeating excavation with the excavation tool in front of the casing again, while erecting the casing. This construction method is characterized by filling the casing with water so that there is always a difference in water head with respect to the groundwater level.This construction method not only prevents tailgating as described above, but also , water can prevent the pore walls from collapsing.
また本発明による装置は、地上に据付けされるケーシン
グの回転圧入装置と、作業機に備えたウィンチによりワ
イヤローブを介して回転自在に吊支されたケリーバおよ
びその下端に取付けられた掘削用バケットからなる中掘
り用回転式掘削具と、ケーシング頂部に取付けられ、前
記掘削用バケットが通過可詣であって、ケーシングの回
転を前記掘削具に伝達する輪状の回転力伝達部材と、該
回転力伝達部材に周方向に複数個配設された係合部に着
脱自在に係合される複数個の係合部を有すると共に、前
記ケリーバを上下動自在にかつ相対回転不能に貫挿した
回転力被伝達部材とにより構成されることを特徴とし、
この構成によって前記目的を達成したものである。The device according to the present invention also includes a rotating press-fitting device for a casing that is installed on the ground, a kely bar that is rotatably suspended via a wire lobe by a winch provided on a working machine, and an excavation bucket that is attached to its lower end. a rotary excavator for deep digging; a ring-shaped rotational force transmitting member attached to the top of a casing through which the excavation bucket can pass and transmitting rotation of the casing to the excavator; A rotational force transmitted member having a plurality of engaging portions that are removably engaged with a plurality of engaging portions arranged in a circumferential direction, and having the above-mentioned Kerry bar inserted through it so as to be movable up and down but not relatively rotatable. It is characterized by consisting of
This configuration achieves the above object.
（実施例） 以下本発明の一実施例を図面により説明する。(Example) An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明の第１の工法を説明する図であり、まず
（Ａ）に示すように、ケーシング３の頂部に輪状の回転
力伝達部材７をボルト等の固定具９により固定しておき
、回転圧入装置２により回転または揺動させながら先行
圧入する。FIG. 1 is a diagram illustrating the first construction method of the present invention. First, as shown in (A), a ring-shaped rotational force transmitting member 7 is fixed to the top of the casing 3 with a fixing device 9 such as a bolt. Then, the rotary press-fitting device 2 performs preliminary press-fitting while rotating or swinging.
このような圧入を行なう回転圧入装置２は、第２図に示
すように、掘削反力を取るために架台１に連結し、該架
台１上にクレーン等の作業機４を・搭載している０丁た
、回転圧入装置２の基本構造は公知であるが、その構造
を説明しておくと、ベースフレーム２ａは複数本のジヤ
ツキ２ｅによす水平に保持され、該ベースフレーム２ａ
に、リング状の昇降フレーム２Ｃを、スラストシリンダ
２ｂ等により昇降されるように取付け、該昇降フレーム
２Ｃにモータ等により回転あるいは揺動されるようにケ
ーシング保持袋Ｃ２ｄを取付けている。該ケーシング保
持装置２ｄは、ケーシング３を油圧シリンダ等により締
付けてチャッキングするバンドを有するものである。従
って、前記ケーシング３を圧入する場合には、ケーシン
グ保持装置２ｄのバンドによりケーシング３をチャッキ
ングし、モータによりケーシング保持装置２ｄを回転ま
たは揺動させ、スラストシリンダ２ｂを収縮させなから
ケーシング３を地中に圧入するものである。As shown in Fig. 2, a rotary press-fitting device 2 that performs such press-fitting is connected to a pedestal 1 to take up the excavation reaction force, and a working machine 4 such as a crane is mounted on the pedestal 1. The basic structure of the rotary press-fitting device 2 is well known, but to explain the structure, the base frame 2a is held horizontally by a plurality of jacks 2e, and the base frame 2a is held horizontally by a plurality of jacks 2e.
A ring-shaped lifting frame 2C is attached so as to be raised and lowered by a thrust cylinder 2b or the like, and a casing holding bag C2d is attached to the lifting frame 2C so as to be rotated or swung by a motor or the like. The casing holding device 2d has a band for tightening and chucking the casing 3 using a hydraulic cylinder or the like. Therefore, when press-fitting the casing 3, the casing 3 is chucked by the band of the casing holding device 2d, the casing holding device 2d is rotated or swung by the motor, and the casing 3 is held without contracting the thrust cylinder 2b. It is press-fitted into the ground.
また、前記回転力伝達部材７は、第３図および第４図に
示すように、ケーシング３とほぼ同じ内径を有し、ケー
シング３に嵌合される構造を有すると共に、突起、鉤状
物あるいは図示のような溝等からなる複数個の係合部７
ａを有し、ケーシング３辷嵌合される部分にａ数個の透
孔ｌＯを有し、該各透孔１０にポルト９を挿通してケー
シング３に予め設けであるねじ孔１１に螺合することに
より、ケーシング３の頂部に固定される。このようなケ
ーシング３の頂部への回転力伝達部材７の取付けは、ケ
ーシング３を蟲ぎ足す前に地上において行なわれるため
、高所作業を必要としない。Further, as shown in FIGS. 3 and 4, the rotational force transmitting member 7 has approximately the same inner diameter as the casing 3, has a structure that fits into the casing 3, and has a protrusion, a hook-like member, or a A plurality of engaging parts 7 consisting of grooves etc. as shown in the figure
The casing 3 has several through holes 10 in the part where the casing 3 is to be fitted across, and the port 9 is inserted into each through hole 10 and screwed into the screw hole 11 provided in advance in the casing 3. By doing so, it is fixed to the top of the casing 3. Such attachment of the rotational force transmitting member 7 to the top of the casing 3 is carried out on the ground before the casing 3 is attached, so that work at heights is not required.
このようにしてケーシング３を先行圧入した後、ケーシ
ング３を前記ケーシング保持袋２ｔ２ｄのバンドにより
チャフキングした状態で前記スラストシリンダ２ｂを伸
長させることにより、ｆｆ１１図（Ｂ）に示すように、
ケーシング３を先行圧入前の状態まで引き上げ、その位
置でケーシング３を回転させると同時に、前記回転力伝
達部材７とケリーバ５を上下動自在に貫挿した回転力被
伝達部材８との係合により、ケーシング３を回転させる
力を利用して、ケリーバ５の下端に取付けた掘削用バケ
ット６を回転させることにより、ケーシング３より下方
の土砂、すなわちケーシング３を先行圧入した部分を掘
削する。After the casing 3 is press-fitted in advance in this way, the thrust cylinder 2b is extended while the casing 3 is chaffed by the band of the casing holding bag 2t2d, as shown in Fig. ff11 (B).
The casing 3 is pulled up to the state before the preliminary press-fitting, and the casing 3 is rotated at that position, and at the same time, the rotational force transmission member 7 and the Kerry bar 5 are engaged with the rotational force transmitted member 8 which is vertically movably inserted. By using the force of rotating the casing 3 to rotate the excavation bucket 6 attached to the lower end of the Kelly bar 5, the earth and sand below the casing 3, that is, the part into which the casing 3 was previously press-fitted, is excavated.
このような掘削を行なう中掘り用掘削具１２および回転
力被伝達部材８は次のように構成されている。第２図に
示すように、前記ケリーバ５は、作業機４に設置された
ウィンチ１３に巻かれたワイヤローブ１４にスイベルジ
ヨイント１５を介して吊支された断面角形をなすもので
あり、多段伸縮自在に構成されることもあり、該ケリー
バ５と、その下端に取付けられた掘削用バケット６とに
より中掘り用掘削具１２が構成される。バケット６は前
記ケーシング３および前記回転力・伝達部材７の内径よ
りやや小さい外径奎有するため、ケーシング３に挿入、
離脱自在である。The medium digging tool 12 and the rotational force transmitted member 8 that perform such excavation are constructed as follows. As shown in FIG. 2, the Kelly lever 5 has a rectangular cross section and is suspended via a swivel joint 15 from a wire lobe 14 wound around a winch 13 installed on the working machine 4. The excavating tool 12 for medium digging is constituted by the Kelly bar 5 and the excavating bucket 6 attached to its lower end. Since the bucket 6 has an outer diameter slightly smaller than the inner diameter of the casing 3 and the rotational force/transmission member 7, it can be inserted into the casing 3,
It is possible to leave.
回転力被伝達部材８は、第２図、第４図に示すように、
両端を前記溝状の係合部７ａに若脱自在に五合される係
合部として構成したフレーム８ａと、該フレーム８ａの
中央部に固設された角筒部８ｂとからなり、該角筒部８
ｂに前記ケリーバ５が上下動自在に、かつ相対回転不能
に貫挿され、第２図のように、バケット６を吊り上げた
状態においては、ケリーバ５のバケット６との接続部の
上に設けられた鍔５ａ上に角筒部８ｂが載る。The rotational force transmitted member 8 is, as shown in FIGS. 2 and 4,
It consists of a frame 8a whose both ends are configured as engaging parts that are removably engaged with the groove-shaped engaging part 7a, and a square tube part 8b fixed to the center of the frame 8a. Cylinder part 8
b, the Kelly bar 5 is inserted therethrough so as to be vertically movable but not relatively rotatable, and when the bucket 6 is lifted up as shown in FIG. The square tube portion 8b rests on the flange 5a.
従って、ウィンチ１３をワイヤロープ１４の経出し方向
に作動させ、バケット６をケーシング３内に挿入し、回
転力被伝達部材８のフレーム８ａの両端を回転力伝達部
材７の係合部７ａに係合させ、さらにウィンチ１３によ
りワイヤロープ１４を繰出すと、回転力被伝達部材８が
回転力伝達部材７に係合したままで、ケリーバ５が角筒
部８ｂ喝を摺動しながらバケット６が降下し、バケット
６がケーシング３内の底部に着地した後、回転圧入装置
２のケーシング保持装置２ｄを、ケーシング３をバンド
でチャフキングした状態で回転することにより、ケーシ
ング３が回転し、これに伴ない、前記回転力伝達部材７
と被伝達部材８との係合により、ケーシング３の回転が
ケリーバ５に伝達され、その下端に取付けられたバケッ
ト６が回転して掘削がなされることになる。Therefore, the winch 13 is operated in the direction of the wire rope 14, the bucket 6 is inserted into the casing 3, and both ends of the frame 8a of the rotational force transmitted member 8 are engaged with the engaging portion 7a of the rotational force transmission member 7. When the wire rope 14 is let out by the winch 13, the bucket 6 is moved while the Kerry bar 5 slides on the square tube part 8b while the rotational force transmitted member 8 remains engaged with the rotational force transmission member 7. After the bucket 6 descends and lands on the bottom of the casing 3, the casing holding device 2d of the rotary press-fitting device 2 is rotated while the casing 3 is chaffed with a band, so that the casing 3 rotates and Accordingly, the rotational force transmission member 7
By the engagement of the casing 3 with the transmitted member 8, the rotation of the casing 3 is transmitted to the Kelly bar 5, and the bucket 6 attached to the lower end thereof is rotated to perform excavation.
この掘削の際には、ケーシング３はそれまでに掘削され
ている個所以上の高さに引き上げられているので、ケー
シング３の回転によって土砂１６が伴回りせず、効率良
く掘削を行なうことができる。また、ケーシング３を回
転または揺動させながら圧入するので、硬質地盤であっ
てもケーシング３を圧入することができる。During this excavation, the casing 3 is raised to a higher height than the previously excavated area, so the rotation of the casing 3 does not cause the earth and sand 16 to follow, allowing efficient excavation. . Further, since the casing 3 is press-fitted while rotating or swinging, the casing 3 can be press-fitted even on hard ground.
このようにしてバケット６により掘削し、バケット６が
満杯になったらウィンチ１３によりワイヤロープ１４を
巻取り、掘削具１２を引き上げ、ケリーバ５の鍔５ａが
回転力被伝達部材８の角筒部８ｂの下面に当接した後は
、ケリーバ５と共に回転力被伝達部材８は伝達部材７か
ら離脱し、次にバケット６がケーシング３ないしは伝達
部材７から抜けた後は、作業機４の旋回装置１７を作動
させ、必要によりバケット６を適正高さに降下させて排
土する。In this way, the bucket 6 excavates, and when the bucket 6 is full, the winch 13 winds up the wire rope 14 and pulls up the excavation tool 12, so that the collar 5a of the Kerry bar 5 is connected to the rectangular tube part 8b of the rotational force transmitted member 8. After contacting the lower surface, the rotational force transmitted member 8 is separated from the transmission member 7 together with the kely bar 5, and after the bucket 6 is removed from the casing 3 or the transmission member 7, the rotation device 17 of the work machine 4 is moved. If necessary, the bucket 6 is lowered to an appropriate height to discharge soil.
このような掘削作業を１回以上行なうことにより、ケー
シング３の先行圧入深さまで掘削した後は、バケット６
による掘削は行なわず（これは、ウィンチ１３を停止し
てバケット６をその高さに留めておくことにより可能と
なる。）、ケーシング３だけを回転または揺動させて先
行圧入する。By performing such excavation work one or more times, after excavating to the pre-press-fitting depth of the casing 3, the bucket 6
(This can be done by stopping the winch 13 and keeping the bucket 6 at that height.) Instead, only the casing 3 is rotated or swung to perform preliminary press-fitting.
このような作業を繰返えしなからケーシング３を所要の
深度まで建込む。By repeating such operations, the casing 3 is built to the required depth.
なお、ケーシング３を引き抜く場合は、ケーシング３の
頂部から回転力伝達部材７を取外し、ケーシング保持装
置２ｄの前記バンドによりケーシング３をチャッキング
した状態でケーシング保持装＠２ｄを回転または揺動さ
せながらスラストシリンダ２ｂを伸長させ、ケーシング
３を押上げることにより引き抜きを行なう。In addition, when pulling out the casing 3, remove the rotational force transmission member 7 from the top of the casing 3, and while rotating or swinging the casing holding device @2d with the casing 3 chucked by the band of the casing holding device 2d. The thrust cylinder 2b is extended and the casing 3 is pushed up to pull it out.
次に本発明による第２の工法について、＠５図により説
明する。この工法は、第２図ないし第４図に示した装置
によって実施可能な工法であり、まず第５図（Ａ）に示
すように、ケーシング３内に水１８′を張り、地下水位
に対して水頭差（好ましくは２ｍ以上の水頭差）を持た
せるようにする。そして第５図（Ａ）に示すように、掘
削具１２をケーシング３内に挿入し、バケット６を着地
させ、かつ前記回転力伝達部材７に被伝達部材８を係合
させ、回転駆動装置２によりケーシング３を前記と同様
に回転させると、前記したようにバケット６が回転して
掘削が行なわれる。この時、ケーシング３は圧入せず、
その位置に留まって回転するだけであり、これに対し、
バケット６による先行掘りがなされる。この場合、前記
のように２ｍ以上の水頭差（地下水に対して０ 、２
ｋｇ／ ｃｍ２以上の水圧差）を持って孔壁を維持して
いるので、先行掘りによる崩壊は生じない、また前記工
法と同様に、ケーシング３は回転するといえども、掘削
個所より上方で回転−しているので、土砂の伴回りはな
く、効率良く掘削を行なうことができる。Next, the second construction method according to the present invention will be explained with reference to Figure @5. This construction method can be carried out using the equipment shown in Figures 2 to 4. First, as shown in Figure 5 (A), water 18' is filled in the casing 3, and the water level is lowered to the groundwater level. A water head difference (preferably a water head difference of 2 m or more) should be provided. Then, as shown in FIG. 5(A), the excavator 12 is inserted into the casing 3, the bucket 6 is landed, and the transmitted member 8 is engaged with the rotational force transmitting member 7. When the casing 3 is rotated in the same manner as described above, the bucket 6 is rotated and excavation is performed as described above. At this time, casing 3 is not press-fitted,
It just stays in place and rotates, whereas
Preliminary digging is performed using bucket 6. In this case, as mentioned above, a water head difference of 2 m or more (0, 2
Since the hole wall is maintained with a water pressure difference of more than kg/cm2, collapse due to preliminary excavation will not occur.Also, similar to the method described above, although the casing 3 rotates, it rotates above the excavation point. As a result, there is no accompanying movement of earth and sand, making it possible to excavate efficiently.
続いて第５図（Ｂ）に示すように、バケット６がその位
置に留まって単に回転する状態になるように、ウィンチ
１３を止めた状態とし、回転駆動装置２によってケーシ
ング３を回転または揺動させつつ、スラストシリンダ２
ｂの収縮により圧入する。このような作業を繰返してケ
ーシング３を建込む。Next, as shown in FIG. 5(B), the winch 13 is stopped and the casing 3 is rotated or oscillated by the rotary drive device 2 so that the bucket 6 remains in that position and simply rotates. While doing so, thrust cylinder 2
Press fit by shrinking b. The casing 3 is built by repeating such operations.
上述した本発明の工法は、特願昭６０−１５４３４６号
に記載したように、ケーシング３の内壁に回転力伝達用
の突条を縦に設け、バケット６には該突条に当接する回
転力被伝達用の突条を形成する構成によっても実施する
ことが可能であるが、上記した本発明の装置を用いるこ
とにより、ケーシング３の内壁に突条を設ける必要がな
いので、ケーシング３を回転あるいは圧入する場合に、
抵抗が小さくなるという利点がある。As described in Japanese Patent Application No. 60-154346, the construction method of the present invention described above is such that a protrusion for transmitting rotational force is vertically provided on the inner wall of the casing 3, and the bucket 6 receives the rotational force that comes into contact with the protrusion. This can also be implemented by forming a protrusion for transmission, but by using the device of the present invention described above, there is no need to provide a protrusion on the inner wall of the casing 3, so the casing 3 can be rotated. Or when press-fitting,
This has the advantage of lower resistance.
（発明の効果）
以上述べたように、本発明の工法によれば、専用の掘削
機が不要で安価に実施でき、かつ排土高さが自由である
ことはいうに及ばず、回転圧入装置を利用してケーシン
グを回転させながら建込みを行なうと共に、中掘りを行
なう際にはケーシングが掘削位置より上方にあるように
して掘削を行なう工法であるから、ケーシングを回転さ
せながらバケットによる掘削を行なうといえども、ケー
シングによる土砂の伴回りが防止され、中掘りを効率良
く行なうことができる。また、ケーシングを回転または
揺動させながら建込むので、硬質地盤にケーシングを建
込むことも可能である。(Effects of the Invention) As described above, the construction method of the present invention does not require a special excavator, can be carried out at low cost, and the soil removal height can be set freely. This is a construction method in which construction is carried out while rotating the casing, and when excavating in the middle, the casing is placed above the excavation position, so excavation is carried out with a bucket while rotating the casing. Even if the excavation is carried out, the entrainment of earth and sand by the casing is prevented, and the intermediate excavation can be carried out efficiently. Moreover, since the casing is built while rotating or swinging, it is also possible to build the casing on hard ground.
また、本発明の第２の工法は、ケーシング内に水を張り
、地下水に対して水頭差を与えた状態で先行中掘りを行
なう工法であるから、孔壁の崩壊が防止され、ケーシン
グが円滑に能率良く建込まれる。In addition, the second construction method of the present invention is a construction method in which water is filled in the casing and excavation is performed in advance while providing a water head difference with respect to groundwater, so collapse of the hole wall is prevented and the casing is smoothly constructed. will be efficiently constructed.
また、本発明による装置は、ケーシングの頂部に掘削具
の駆動装備を設けず、単に簡単な構成の回転力伝達部材
を設けるだけであるから、重量が大であってかつ大型の
掘削具駆動装置をケーシング頂部に取付ける従来装置に
比較し、作業の安全性が向上し、また、ケーシング継ぎ
足しの際の付換え作業が簡単に行なえるから、作業の能
率も向上する。また、ケーシング頂部から油圧ホースあ
るいはケーブルが垂下されることもないので、作業環境
が簡素化される。また、本発明の装置は、ケーシング内
壁に回転力伝達用の突条等を設ける必要がないので、ケ
ーシングを回転あるいは揺動させながら建込む際、抵抗
が小さくてすむ。In addition, the device according to the present invention does not provide a driving device for the excavating tool on the top of the casing, but merely provides a rotational force transmitting member with a simple configuration, so the device has a large weight and a large size. Compared to conventional equipment in which the casing is attached to the top of the casing, work safety is improved, and work efficiency is also improved because replacement work can be easily performed when adding casings. Further, since there are no hydraulic hoses or cables hanging down from the top of the casing, the working environment is simplified. Furthermore, since the device of the present invention does not require any protrusions for transmitting rotational force on the inner wall of the casing, there is less resistance when the casing is erected while being rotated or rocked.
第１図（Ａ）、ＣＢ）は本発明の第１の工法の一実施例
を示す一部断面側面図、第２図は本発明の工法を実施す
る場合に使用する装置の一実施例の全体を示す側面図、
第３図は第２図のＩ−Ｉ拡大断面図、第４図は本発明に
おいて用いる掘削具と回転力伝達装置の構成を示す斜視
図、第５図（Ａ）； （Ｂ）は本発明の第２の工法の
一実施例をす一部断面側面図である。
特許出願人 日進基礎工業株式会社外１名代理人 弁理
士 秋木正実外１名
第１図
第３図
第４図
６バグ／ト
第５図Figures 1 (A) and CB) are partially sectional side views showing an embodiment of the first construction method of the present invention, and Figure 2 shows an embodiment of the equipment used when carrying out the construction method of the present invention. Side view showing the whole
FIG. 3 is an enlarged sectional view taken along the line I-I in FIG. 2, FIG. 4 is a perspective view showing the structure of the excavation tool and rotational force transmission device used in the present invention, and FIG. 5 (A); (B) is the present invention. FIG. 3 is a partial cross-sectional side view of an embodiment of the second construction method. Patent applicant: Nisshin Basic Industry Co., Ltd. and one other agent Patent attorney: Masami Akiki and one other person Fig. 1 Fig. 3 Fig. 4 Fig. 6 Bug/G Fig. 5
Claims (1)
た後、一旦先行圧入前の状態まで引き上げ、その位置で
ケーシングを回転させると同時に、ケーシングの回転力
を掘削具に伝達して回転させることにより、ケーシング
を先行圧入した部分の土砂を掘削し、該掘削具をケーシ
ングより引き抜いて地上にて排土し、再びケーシングを
先行圧入することを繰返えしながらケーシングを建込ん
でいくことを特徴とする回転圧入式大口径鋼管類建込み
工法。 ２、ケーシングの回転力を中掘り用掘削具に伝達して回
転させることにより、ケーシングに先行して掘削を行な
い、ある一定の深さまで掘削を行なった後、掘削具をそ
の位置に留め、前記掘削具による掘削深さまでケーシン
グのみを回転または揺動させながら圧入し、再び掘削具
をケーシングに先行させて掘削を行なうことを繰返しな
がらケーシングを建込んでいくと共に、ケーシング内に
水を張って地下水位に対して常に水頭差を持たせるよう
にして施工することを特徴とする回転圧入式大口径鋼管
類建込み工法。 ３、地上に据付けるケーシングの回転圧入装置と、作業
機に備えたウインチによりワイヤロープを介して回転自
在に吊支されたケリーバおよびその下端に取付けられた
掘削用バケットからなる中掘り用回転式掘削具と、ケー
シング頂部に取付けられ、前記掘削用バケットが通過可
能であって、ケーシングの回転を前記掘削具に伝達する
輪状の回転力伝達部材と、該回転力伝達部材に周方向に
複数個配設された係合部に着脱自在に係合される複数個
の係合部を有すると共に、前記ケリーバを上下動自在に
かつ相対回転不能に貫挿した回転力被伝達部材とにより
構成されることを特徴とする回転圧入式大口径鋼管類建
込み装置。[Claims] 1. After the casing is press-fitted while rotating or rocking, the casing is temporarily pulled up to the state before the pre-press-fitting, and the casing is rotated at that position, and at the same time, the rotational force of the casing is transmitted to the excavation tool. The casing is erected by rotating the casing, excavating the earth and sand in the area where the casing was previously press-fitted, pulling out the excavation tool from the casing and removing the earth on the ground, and repeating the process of previously press-fitting the casing again. A rotary press-fit method for constructing large-diameter steel pipes. 2. By transmitting the rotational force of the casing to the excavating tool for medium digging and rotating it, excavation is carried out in advance of the casing, and after excavating to a certain depth, the excavating tool is held in that position, and the above-mentioned The casing is press-fitted while rotating or swinging to the depth of excavation by the excavation tool, and the casing is repeatedly excavated by placing the excavation tool in front of the casing, and the casing is filled with water to drain underground water. A rotary press-fit construction method for constructing large-diameter steel pipes, which is characterized by construction in such a way that there is always a difference in water head between positions. 3. Rotary type for deep digging consisting of a rotary press-fitting device for casings installed on the ground, a Kerry bar rotatably suspended via a wire rope by a winch attached to the working machine, and an excavating bucket attached to its lower end. an excavation tool, a ring-shaped rotational force transmission member that is attached to the top of the casing, through which the excavation bucket can pass, and that transmits the rotation of the casing to the excavation tool; It has a plurality of engaging parts that are removably engaged with the disposed engaging parts, and a rotational force transmitted member inserted through the Kerry bar so as to be movable up and down but not relatively rotatable. A rotary press-fit type large-diameter steel pipe erection device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16198886A JPS6319328A (en) | 1986-07-11 | 1986-07-11 | Method and apparatus for constructing turning-penetrating type large-diameter steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16198886A JPS6319328A (en) | 1986-07-11 | 1986-07-11 | Method and apparatus for constructing turning-penetrating type large-diameter steel tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6319328A true JPS6319328A (en) | 1988-01-27 |
| JPH0543011B2 JPH0543011B2 (en) | 1993-06-30 |
Family
ID=15745900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16198886A Granted JPS6319328A (en) | 1986-07-11 | 1986-07-11 | Method and apparatus for constructing turning-penetrating type large-diameter steel tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6319328A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0258626A (en) * | 1988-08-22 | 1990-02-27 | Matsumuragumi:Kk | Constructing method for foundation |
| EP1154078A2 (en) * | 2000-05-11 | 2001-11-14 | Bauer Spezialtiefbau GmbH | Apparatus for and a method of boring the ground |
| KR20010112162A (en) * | 2001-11-08 | 2001-12-20 | (주) 신영이앤씨 | Clamp-build a method for temporary-facility and structure using pressure machine |
| JP2004263561A (en) * | 2004-06-30 | 2004-09-24 | Hazama Corp | Cast-in-place pile and its work execution method |
| KR100479514B1 (en) * | 2001-11-06 | 2005-03-30 | 바우어 머쉬넨 게엠베하 | Apparatus for and a method of boring the ground |
| JP2006257648A (en) * | 2005-03-15 | 2006-09-28 | Nippon Sharyo Seizo Kaisha Ltd | Power unit |
| JP2009209564A (en) * | 2008-03-03 | 2009-09-17 | Chugoku Electric Power Co Inc:The | Ditch excavating equipment |
| JP2012233392A (en) * | 2011-04-22 | 2012-11-29 | System Keisoku Kk | Drilling equipment |
| JP2014080752A (en) * | 2012-10-15 | 2014-05-08 | Hoei Sangyo Kk | Excavating equipment |
| JP2015031006A (en) * | 2013-07-31 | 2015-02-16 | 日本車輌製造株式会社 | Power transmission device |
| JP2015071890A (en) * | 2013-10-03 | 2015-04-16 | 日本車輌製造株式会社 | Power transmission device |
| CN104563104A (en) * | 2015-01-19 | 2015-04-29 | 宁波市坤德创新岩土工程有限公司 | Linkage type wall protecting device for pile driving drilling machine and construction method for using linkage type wall protecting device for pile driving drilling machine |
| JP2022029103A (en) * | 2020-08-04 | 2022-02-17 | 株式会社オーク | Drilling device and its method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5380142B2 (en) * | 2009-04-22 | 2014-01-08 | システム計測株式会社 | Expanded bucket, casing, and expanded pile construction method |
| JP5380574B2 (en) * | 2012-04-25 | 2014-01-08 | システム計測株式会社 | Bucket, casing, and pile construction method |
-
1986
- 1986-07-11 JP JP16198886A patent/JPS6319328A/en active Granted
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0258626A (en) * | 1988-08-22 | 1990-02-27 | Matsumuragumi:Kk | Constructing method for foundation |
| EP1154078A2 (en) * | 2000-05-11 | 2001-11-14 | Bauer Spezialtiefbau GmbH | Apparatus for and a method of boring the ground |
| EP1154078A3 (en) * | 2000-05-11 | 2003-03-19 | BAUER Maschinen GmbH | Apparatus for and a method of boring the ground |
| KR100479514B1 (en) * | 2001-11-06 | 2005-03-30 | 바우어 머쉬넨 게엠베하 | Apparatus for and a method of boring the ground |
| KR20010112162A (en) * | 2001-11-08 | 2001-12-20 | (주) 신영이앤씨 | Clamp-build a method for temporary-facility and structure using pressure machine |
| JP2004263561A (en) * | 2004-06-30 | 2004-09-24 | Hazama Corp | Cast-in-place pile and its work execution method |
| JP2006257648A (en) * | 2005-03-15 | 2006-09-28 | Nippon Sharyo Seizo Kaisha Ltd | Power unit |
| JP2009209564A (en) * | 2008-03-03 | 2009-09-17 | Chugoku Electric Power Co Inc:The | Ditch excavating equipment |
| JP2012233392A (en) * | 2011-04-22 | 2012-11-29 | System Keisoku Kk | Drilling equipment |
| JP2014080752A (en) * | 2012-10-15 | 2014-05-08 | Hoei Sangyo Kk | Excavating equipment |
| JP2015031006A (en) * | 2013-07-31 | 2015-02-16 | 日本車輌製造株式会社 | Power transmission device |
| JP2015071890A (en) * | 2013-10-03 | 2015-04-16 | 日本車輌製造株式会社 | Power transmission device |
| CN104563104A (en) * | 2015-01-19 | 2015-04-29 | 宁波市坤德创新岩土工程有限公司 | Linkage type wall protecting device for pile driving drilling machine and construction method for using linkage type wall protecting device for pile driving drilling machine |
| JP2022029103A (en) * | 2020-08-04 | 2022-02-17 | 株式会社オーク | Drilling device and its method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0543011B2 (en) | 1993-06-30 |
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