JP3181064U

JP3181064U - Obstacle removal casing

Info

Publication number: JP3181064U
Application number: JP2012006743U
Authority: JP
Inventors: 博小野寺; 力小野寺
Original assignee: 博小野寺; 力小野寺
Priority date: 2012-11-06
Filing date: 2012-11-06
Publication date: 2013-01-24
Anticipated expiration: 2022-11-06

Abstract

【課題】地中の障害物を撤去する障害物撤去用ケーシングに関し、取り出し用の筒体の、撤去作業を中断させることがなく、また駆動源の負荷を低減した障害物撤去用ケーシングを提供する。
【解決手段】地中に貫入させ障害物を取り出す管体と、該管体の地中側先端部の近傍で筒体内側に係合される基端部から管体内方へ迫り出した先端部でなる弾性を有した複数の羽根部材２と、該羽根部材２の管体内方へ迫り出した先端部に一端部が係合しそれを前記管体の内方に向けて常に付勢するもので他端部を管体の内壁に揺動自在に係合させてなる付勢部材とでなる障害物撤去用ケーシング１とする。
【選択図】図１The present invention relates to an obstacle removal casing for removing an obstacle in the ground, and provides an obstacle removal casing in which a removal operation of a cylinder for taking out is not interrupted and the load on a driving source is reduced. .
A tube body that penetrates into the ground and takes out an obstacle, and a distal end portion that protrudes toward the inside of the tubular body from a proximal end portion that is engaged with the inside of the tubular body in the vicinity of the underground distal end portion of the tubular body. A plurality of blade members 2 having elasticity, and one end portion engaged with a tip portion of the blade member 2 that protrudes toward the inside of the tubular body, and constantly urges it toward the inside of the tubular body Thus, the obstruction removing casing 1 is constituted by an urging member having the other end portion slidably engaged with the inner wall of the tubular body.
[Selection] Figure 1

Description

本考案は、例えば、鉄筋鉄骨コンクリート造、鉄骨コンクリート造、鉄骨造等の構造物を解体して新たに構造物を建築する際に、地下に埋まっているコンクリート基礎やパイル等の障害物を撤去するための障害物撤去用ケーシングに関するものである。 The present invention removes obstacles such as concrete foundations and piles buried underground when dismantling structures such as reinforced steel concrete structures, steel concrete structures, steel structures and building new structures, for example. It is related with the obstruction removal casing for doing.

従来、上記地中に埋まった障害物を撤去する装置としては、例えば、特許文献１に記載されているように、杭の撤去装置がある。これは、管体に障害物を切断するビットを備え、管体を打ち込むときと逆方向に回転することによって、管体内方に張り出すとともに、その状態で管体を引き上げたときに杭の撤去可能な位置と当接して、管体と共に杭を地中から撤去することができるようにする羽根部材と、管体を打ち込み時と逆方向に土の抵抗を受けることによって前記羽根部材を管体内方に張り出すようにする抵抗手段とを備えてなるものである。 Conventionally, as an apparatus for removing an obstacle buried in the ground, there is a pile removing apparatus as described in Patent Document 1, for example. This is equipped with a bit that cuts the obstacle in the tube, and rotates in the opposite direction to when the tube is driven, so that it protrudes toward the inside of the tube and the pile is removed when the tube is pulled up in that state. A blade member that comes into contact with a possible position so that the pile can be removed from the ground together with the pipe body, and the blade member is received in the pipe body by receiving the resistance of the soil in a direction opposite to that when driving the pipe body. And resistance means for projecting toward the direction.

前記杭の撤去装置により、管体を所定方向に回転させて地中に打ち込んでいき、撤去すべき障害物があると、その障害物を越えて管体を打ち込んだ後に、当該管体を逆回転させて前記羽根部材を内方に張り出させて、障害物の下に当接させ管体と共に地上に引き上げる方法である。 The pile removal device rotates the pipe body in a predetermined direction and drives it into the ground. If there is an obstacle to be removed, the pipe body is driven over the obstacle, and then the pipe body is reversed. In this method, the blade member is rotated inwardly so as to project inward, and is brought into contact with an obstacle under the obstacle and pulled up together with the pipe body.

上記の他、地中の障害物の撤去方法として、ケーシング内に切り取った障害物の撤去に、落下衝撃、抜き取り、機械掘削の方法がある。このうち、抜き取り工法では、掘削機を用いて、障害物の周囲をケーシング壁に装着した切削刃で削り、コアを地中で破砕せず抜き取る工法である。 In addition to the above, as methods for removing obstacles in the ground, there are methods of dropping impact, extraction, and machine excavation for removing obstacles cut out in the casing. Among these, the extraction method is a method in which an excavator is used to cut the periphery of an obstacle with a cutting blade attached to a casing wall, and the core is extracted without being crushed in the ground.

特開２００７−１３８５５２号公報JP 2007-138552 A

しかしながら、従来の杭の撤去方法では、管体を必ず逆回転させなければならない。よって、撤去作業を一旦中断して、それから管体を逆回転させるので工期が長くなり手間が掛かるとともに、駆動負荷が大きくなり、装置全体が大がかりとなる。更に、羽根部材の拡張の様子を、地上からは容易に確認することができないものである。 However, in the conventional pile removal method, the pipe body must be rotated in the reverse direction. Therefore, the removal work is temporarily interrupted, and then the pipe body is reversely rotated, so that the construction period is long and troublesome, the driving load is increased, and the entire apparatus becomes large. Furthermore, the state of expansion of the blade member cannot be easily confirmed from the ground.

また、そのほかの撤去工法に関して、例えば、落下衝撃方法ではケーシング内で障害物をグラブ把持の際に落下衝撃が生じることがある。更に、直接ワイヤーを障害物に掛け、クレーンで抜き取りする等の工法では、ケーシング内に作業者が降りるので、危険が生じる場合もある。長い杭状の場合には小割ができず過負荷が生じやすく、多様な構造物が混在する一般的な現場での制約が多いのが実情である。更に、抜き取り補助用の泥水を使用するので環境負荷が高いなどの課題がある。本考案に係る障害物撤去用ケーシングは、このような課題を解決するために提案されたものである。 Regarding other removal methods, for example, in the drop impact method, a drop impact may occur when an obstacle is grabbed in the casing. Furthermore, in a construction method such as placing a wire directly on an obstacle and pulling it out with a crane, a worker may get down into the casing, which may cause danger. In the case of a long pile shape, it is difficult to make a small split, and overload is likely to occur, and there are many restrictions on general sites where various structures are mixed. Furthermore, there are problems such as high environmental load because of the use of muddy water for auxiliary extraction. The obstruction removal casing according to the present invention has been proposed to solve such a problem.

本考案に係る障害物撤去用ケーシングの上記課題を解決して目的を達成するための要旨は、地中に貫入させ障害物を取り出す管体と、該管体の地中側先端部の近傍で筒体内側に係合される基端部から管体内方へ迫り出した先端部でなる弾性を有した複数の羽根部材と、該羽根部材の管体内方へ迫り出した先端部に一端部が係合しそれを前記管体の内方に向けて常に付勢するもので他端部を管体の内壁に揺動自在に係合させてなる付勢部材とでなることである。 The gist for solving the above-mentioned problems of the obstacle removal casing according to the present invention to achieve the object is a pipe body that penetrates into the ground and takes out the obstacle, and in the vicinity of the underground tip of the pipe body. A plurality of blade members having elasticity formed by a distal end portion that protrudes toward the inside of the tubular body from a proximal end portion that is engaged with the inside of the cylindrical body, and one end portion of the distal end portion that protrudes toward the tubular body of the blade member It is an urging member that engages and constantly urges it toward the inside of the tubular body, and that has an other end slidably engaged with the inner wall of the tubular body.

前記羽根部材は、管体の周壁の一部を管体内方へ切り起こして形成したものであることである。 The blade member is formed by cutting and raising a part of the peripheral wall of the tube body toward the tube body.

更に、前記羽根部材は、その上端面が使用状態で水平であって、下端面が当該羽根部材の跳ねだした先端部から管体内壁の基端部の下部に直線的若しくは曲線的に結ばれて、側面視して三角形状若しくは略三角形状に形成されていることを含むものである。 In addition, the blade member has an upper end surface that is horizontal in use, and a lower end surface that is linearly or curvedly connected from the tip end portion of the blade member to the lower portion of the proximal end portion of the tubular body wall. In other words, it includes a triangular shape or a substantially triangular shape when viewed from the side.

本考案の障害物撤去用ケーシングによれば、管体を地中に貫入させて障害物を越えて管体の先端部が地中奥へ入り込んだ後、一旦、管体の回転を停止して、羽根部材の内方への拡開をなさしめた後、そのまま管体を地上へ引き上げることで、障害物を撤去することができる。よって、管体を逆回転させて障害物を引き上げるのでは無いので、回転駆動源にとって高負荷になることが無く、作業手順も容易で工期短縮となる。 According to the obstruction removal casing of the present invention, after the tube has penetrated into the ground and the tip of the tube has penetrated into the ground beyond the obstacle, the tube is temporarily stopped rotating. After the inward expansion of the blade member, the obstacle can be removed by pulling up the tube as it is. Therefore, since the tube body is not rotated in the reverse direction and the obstacle is lifted, there is no high load on the rotational drive source, the work procedure is easy, and the construction period is shortened.

また、前記羽根部材を管体の周壁の一部で一体に形成することで、製造コストが低減きるものであり部品点数が減って管理もしやすくなる。更に、羽根部材の形状を略三角形状等にすることで、この羽根部材の回転されているときの土からの抵抗が減じ、拡張されるときも土の抵抗が少なくなり、付勢部材も小型化できる。 Further, by forming the blade member integrally with a part of the peripheral wall of the tube body, the manufacturing cost can be reduced, and the number of parts can be reduced and management is facilitated. Furthermore, by making the shape of the blade member substantially triangular, etc., the resistance from the soil when the blade member is rotated is reduced, and the resistance of the soil is reduced when expanded, and the biasing member is also small. Can be

本考案の実施例に係る障害物撤去用ケーシング１の使用状態を示す断面図である。It is sectional drawing which shows the use condition of the casing 1 for obstruction removal which concerns on the Example of this invention. 同本考案の障害物撤去用ケーシング１の正面図である。It is a front view of the casing 1 for obstruction removal of the same invention. 同本考案の障害物撤去用ケーシング１における羽根部材２の構成を示す断面図である。It is sectional drawing which shows the structure of the blade | wing member 2 in the casing 1 for obstruction removal of the same invention. 同本考案の障害物撤去用ケーシング１の回転停止時における、羽根部材２の拡張の様子を示す一部拡大断面図である。It is a partially expanded sectional view which shows the mode of expansion of the blade member 2 at the time of the rotation stop of the obstruction removal casing 1 of the present invention.

本考案に係る障害物撤去用ケーシング１は、管体内壁に常に管体の内側に迫り出す羽根部材を設けるものである。これによって、管体を逆回転させて障害物に係合させる手間が省けるものである。 The obstruction removal casing 1 according to the present invention is provided with a blade member that always protrudes toward the inside of the pipe body on the wall of the pipe body. As a result, it is possible to save the trouble of rotating the tube in reverse and engaging with the obstacle.

本考案に係る障害物撤去用ケーシング１は、図１乃至図２に示すように、地中に貫入させ障害物を取り出す円筒状の管体１ａと、該管体１ａの地中側先端部の近傍で筒体内壁に係合される基端部２ａから管体内方へ迫り出した先端部２ｂでなる弾性を有した複数の羽根部材２と、図３（Ａ）に示すように、該羽根部材２の管体内方へ迫り出した先端部２ｂに一端部３ａが係合しそれを前記管体１ａの内方に向けて常に付勢するもので他端部３ｂを管体１ａの内壁に揺動自在に係合させてなる付勢部材３とでなる。 As shown in FIGS. 1 and 2, an obstacle removing casing 1 according to the present invention includes a cylindrical tubular body 1a that penetrates into the ground and takes out an obstacle, and a ground-side tip portion of the tubular body 1a. A plurality of blade members 2 having elasticity composed of a distal end portion 2b protruding from the proximal end portion 2a engaged with the cylindrical body wall in the vicinity toward the inside of the tubular body, and as shown in FIG. One end 3a is engaged with the distal end portion 2b of the member 2 that protrudes toward the inside of the tubular body, and it is constantly urged toward the inside of the tubular body 1a. The urging member 3 is slidably engaged.

前記羽根部材２は、図１乃至図２に示すように、復元力となる弾性を有した例えばバネ鋼材などである。この羽部材２を形成するには、例えば、管体１ａの周壁の一部を管体内方へ切り起こして形成することができる。勿論、図３（Ｂ）に示すように、基端部２ａにおいて、ピン等の回動部材を介して管体内壁に別体の羽根部材２を連結して、揺動自在にすることもできる。 As shown in FIGS. 1 to 2, the blade member 2 is, for example, a spring steel material having elasticity that serves as a restoring force. In order to form the wing member 2, for example, a part of the peripheral wall of the tube 1a can be cut and raised toward the inside of the tube. Of course, as shown in FIG. 3B, a separate blade member 2 can be connected to the inner wall of the tube through a rotating member such as a pin at the base end portion 2a so as to be swingable. .

前記羽根部材２は、図３（Ｂ）に示すように、その上端面２ｃが使用状態で水平であって、下端面２ｄが当該羽根部材２の跳ねだした先端部２ｂから管体内壁の基端部２ａの下部に直線的若しくは曲線的に結ばれて、側面視して三角形状若しくは略三角形状に形成されている。 As shown in FIG. 3 (B), the blade member 2 has an upper end surface 2c that is horizontal in use, and a lower end surface 2d that protrudes from the tip end 2b of the blade member 2 to the base of the inner wall of the tubular body. It is linearly or curvedly connected to the lower part of the end portion 2a, and is formed in a triangular shape or a substantially triangular shape in a side view.

前記付勢部材３は、例えば、小型の油圧ピストンであったり、コイルバネであったりするものである。前記油圧ピストンのように地上から高圧油を供給するように制御したり、若しくは、地上からロッドで拡張操作したり、コイルバネのように自動的に拡張するようにしたりするものである。 The urging member 3 is, for example, a small hydraulic piston or a coil spring. The hydraulic piston is controlled so as to supply high-pressure oil from the ground, or is expanded from the ground with a rod, or is automatically expanded like a coil spring.

以上のように形成した障害物撤去用ケーシング１によれば、図１に示すように、地盤６中の障害物４があって、それを掘削用筒体（コア抜きケーシング）５を正転方向に回転させ先端部のビット５ａで前記障害物４を切断する。その後、図３乃至図４に示すように、前記筒体５内に、障害物撤去用ケーシング１を貫入させる。 According to the obstacle removal casing 1 formed as described above, there is an obstacle 4 in the ground 6 as shown in FIG. The obstacle 4 is cut with the bit 5a at the tip. Thereafter, as shown in FIGS. 3 to 4, the obstacle removing casing 1 is inserted into the cylindrical body 5.

図３（Ａ）に示すように、障害物撤去用ケーシング１を正転方向に回転させて、羽根部材２が障害物である例えばコンクリート塊４に当たると、図４に示すように、該コンクリート塊４に押されて、付勢部材３の付勢力に抗して前記羽根部材２が径外側に押し込まれる。 As shown in FIG. 3 (A), when the obstacle removing casing 1 is rotated in the forward rotation direction and the blade member 2 hits an obstacle, for example, a concrete lump 4, the concrete lump as shown in FIG. 4, the blade member 2 is pushed radially outward against the urging force of the urging member 3.

更に管体１ａが降下して前記コンクリート塊４を通過すると、図４に示すように、前記羽根部材２の先端部２ｂが、羽根部材自身の弾性力と付勢部材３の付勢力とによって、管体内側へと跳ねだして拡張する。 When the tubular body 1a further descends and passes through the concrete block 4, as shown in FIG. 4, the tip portion 2b of the blade member 2 is caused by the elastic force of the blade member itself and the biasing force of the biasing member 3. It jumps to the inside of the tube and expands.

これにより、前記羽根部材２が前記通過したコンクリート塊４の下に潜り込む。そこで、前記障害物撤去用ケーシング１を地上に引き上げる。管体１ａとともに羽根部材２が引き上げられ、更に、前記羽根部材２で持ち上げられるコンクリート塊４も同時に地上に引き上げられることになる。こうして、障害物撤去用ケーシング１の回転を停止させて、その後、逆回転させることなくそのまま引き上げるだけで、障害物４を撤去できるのである。 As a result, the blade member 2 sinks under the passed concrete block 4. Therefore, the obstacle removal casing 1 is pulled up to the ground. The blade member 2 is pulled up together with the pipe body 1a, and the concrete block 4 lifted by the blade member 2 is also lifted to the ground at the same time. In this way, the obstacle 4 can be removed simply by stopping the rotation of the obstacle removing casing 1 and then pulling it up without reverse rotation.

前記付勢部材３に関しては、例えば、拡張し膨張する断面三角形状の袋を用意し、地上から圧縮空気を供給して袋を膨らませるようにして、羽根部材２を拡張させてもよく、数々の公知の拡張手段が適用できるものである。 Regarding the urging member 3, for example, a bag having a triangular cross section that expands and expands may be prepared, and the blade member 2 may be expanded by supplying compressed air from the ground to inflate the bag. The known expansion means can be applied.

本考案に係る障害物撤去用ケーシング１は、地中の色々な物体の引き上げ装置として適用できるものである。 The obstacle removal casing 1 according to the present invention can be applied as a lifting device for various objects in the ground.

１障害物撤去用ケーシング、１ａ管体、
２羽根部材、
２ａ基端部、２ｂ先端部、
２ｃ上端面、２ｄ下端面、
３付勢部材、
３ａ一端部、３ｂ他端部、
４障害物、
５掘削用筒体、
５ａビット、
６地盤。 1 Obstacle removal casing, 1a tube,
2 blade members,
2a proximal end, 2b distal end,
2c upper end surface, 2d lower end surface,
3 biasing member,
3a one end, 3b other end,
4 obstacles,
5 Drilling cylinder,
5a bit,
6 Ground.

Claims

地中に貫入させ障害物を取り出す管体と、
該管体の地中側先端部の近傍で筒体内側に係合される基端部から管体内方へ迫り出した先端部でなる弾性を有した複数の羽根部材と、
該羽根部材の管体内方へ迫り出した先端部に一端部が係合しそれを前記管体の内方に向けて常に付勢するもので他端部を管体の内壁に揺動自在に係合させてなる付勢部材とでなること、
を特徴とする障害物撤去用ケーシング。 A tube that penetrates into the ground and takes out obstacles;
A plurality of blade members having elasticity consisting of a distal end portion protruding toward the inside of the tubular body from a proximal end portion engaged with the inside of the tubular body in the vicinity of the underground distal end portion of the tubular body;
One end is engaged with the tip of the blade member that protrudes toward the inside of the tube, and it is always urged toward the inside of the tube, and the other end can be swung freely on the inner wall of the tube. Comprising an urging member that is engaged,
Obstacle removal casing characterized by.

羽根部材は、管体の周壁の一部を管体内方へ切り起こして形成したものであること、
を特徴とする請求項１に記載の障害物撤去用ケーシング。 The blade member is formed by cutting and raising a part of the peripheral wall of the tube body toward the tube body,
The casing for removing an obstacle according to claim 1.

羽根部材は、その上端面が使用状態で水平であって、下端面が当該羽根部材の跳ねだした先端部から管体内壁の基端部の下部に直線的若しくは曲線的に結ばれて、側面視して三角形状若しくは略三角形状に形成されていること、
を特徴とする請求項１または２に記載の障害物撤去用ケーシング。 The blade member has an upper end surface that is horizontal in use, and a lower end surface that is linearly or curvedly connected from the tip end of the blade member to the bottom of the proximal end of the tubular body wall. It is formed in a triangular shape or a substantially triangular shape as viewed,
The obstruction removal casing according to claim 1 or 2.