JP2019214861A - Muddy water scattering prevention jig and drilling system - Google Patents
Muddy water scattering prevention jig and drilling system Download PDFInfo
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本発明は，泥水飛散防止用治具及びそれを用いた掘削システムに関する。 The present invention relates to a jig for preventing muddy water from scattering and a drilling system using the same.
従来から，全周回転掘削機によって掘削用のケーシングを地中に貫入する掘削システム知られている。このような掘削システムは，例えば地中に埋設されている円柱状のコンクリート杭を撤去する工事や，新築工事，硬質地盤の掘削工事などで幅広く利用されている。 2. Description of the Related Art Conventionally, there has been known an excavation system in which an excavating casing is penetrated into the ground by an all-round rotary excavator. Such an excavation system is widely used, for example, for removing columnar concrete piles buried in the ground, for new construction, or for excavating hard ground.
ところで，上記掘削システムを用いて地中に埋設されている円柱状の既設のコンクリート杭を撤去する際には，一般的に，そのコンクリート杭を囲うように全周回転掘削機によってケーシングを地中に貫入してコンクリート杭の周囲の地盤を保護した上で，クレーンに吊持したチゼル（重鎮）をケーシングの内側に投下させてコンクリート杭を上端部側から破砕し，その粉砕物をグラブハンマによって地上へ引き上げる操作を繰り返し行う。 By the way, when removing an existing columnar concrete pile buried underground using the above-mentioned excavation system, the casing is generally underground by a full-rotation excavator so as to surround the concrete pile. And the ground around the concrete pile is protected, the chisel suspended by a crane is dropped inside the casing, and the concrete pile is crushed from the upper end side. The crushed material is ground by a grab hammer. Repeat the operation of lifting to.
しかしながら，コンクリートの粉砕物をグラブハンマによって引き上げる際に，その粉砕物が揺れたりケーシング内壁に接触することによりグラブハンマから外れて，粉砕物が再びケーシング内に落下する場合がある。ケーシング内には泥水が充満していることが多く，粉砕物がケーシング内に落下すると，その衝撃でケーシング内の泥水が地上に飛散する事態が想定される。このような事態に備えて，地上に配備された全周回転掘削機及びケーシング全体をビニールシートなどで覆うといった養生作業を行う必要があるが，この作業には手間がかかり，工事の作業効率が低下するという問題があった。 However, when the crushed material of the concrete is lifted by the grab hammer, the crushed material may come off the grab hammer due to shaking or contact with the inner wall of the casing, and the crushed material may fall back into the casing. The casing is often filled with muddy water, and if crushed material falls into the casing, the impact may cause the muddy water in the casing to scatter to the ground. In order to prepare for such a situation, it is necessary to carry out curing work such as covering the entire rotating excavator on the ground and the entire casing with a vinyl sheet, etc., but this work is time-consuming and requires less work. There was a problem of lowering.
そこで，本発明は，ケーシング内の泥水が飛散するのを効果的に防止できる治具を提供することを主たる目的とする。 Therefore, it is a main object of the present invention to provide a jig that can effectively prevent muddy water in a casing from being scattered.
本発明の発明者は，上記課題の解決手段について鋭意検討した結果，掘削用のケーシングの上端部に断面円弧状の側壁部を有する泥水飛散防止用治具を取り付けることで，ケーシング内の泥水の飛散を効果的に防止できるようになるという知見を得た。そして，本発明者は，上記知見に基づけば従来技術の課題を解決できることに想到し，本発明を完成させた。具体的に説明すると，本発明は以下の構成を有する。 The inventor of the present invention has made intensive studies on the means for solving the above-mentioned problems, and as a result, by attaching a mud splash prevention jig having an arc-shaped side wall to the upper end of the casing for excavation, the mud in the casing is removed. It has been found that scattering can be effectively prevented. The inventor has conceived that the problems of the prior art can be solved based on the above findings, and has completed the present invention. More specifically, the present invention has the following configuration.
本発明の第１の側面は，泥水飛散防止用治具１００に関する。本発明に係る泥水飛散防止用治具１００は，全周回転掘削機３００によって上下に進退駆動されるケーシング２００の上端部に取り付けられる取付部１１０と，この取付部１１０の上方に延在する断面円弧状の側壁部１２０とを備える。このように，ケーシング２００の上端部に泥水飛散防止用治具１００を取り付けることで，ケーシング２００の内部から泥水が噴出した場合であっても，通行人などの場外第三者に泥水が掛かることを防止できる。また，グラブハンマ４００はクローラークレーンで吊り下げてケーシング２００内に降ろされるが，その際にグラブハンマ４００が揺れ動いて近接物（隣地構造物など）に接触する恐れがある。この点，本発明によれば，泥水飛散防止用治具１００を利用してグラブハンマ４００と近接物の接触を防止できるため，より安全に工事を行うことができる。また，泥水飛散防止用治具１００をグラブハンマ４００のガイドとしても利用できるため，現場での作業効率が改善される。 The first aspect of the present invention relates to a jig 100 for preventing muddy water from scattering. The jig 100 for preventing muddy water scattering according to the present invention includes a mounting portion 110 mounted on an upper end portion of a casing 200 driven up and down by an all-round rotary excavator 300, and a cross section extending above the mounting portion 110. And an arc-shaped side wall portion 120. By attaching the jig 100 for preventing splash of muddy water to the upper end portion of the casing 200 in this way, even if muddy water spouts from the inside of the casing 200, muddy water is applied to an outside party such as a passerby. Can be prevented. Further, the grab hammer 400 is suspended by a crawler crane and lowered into the casing 200. At this time, the grab hammer 400 may swing and contact with a nearby object (such as a neighboring structure). In this regard, according to the present invention, since the contact between the grab hammer 400 and a nearby object can be prevented using the jig 100 for preventing muddy water scattering, construction can be performed more safely. In addition, since the jig 100 for preventing muddy water from scattering can be used as a guide for the grab hammer 400, work efficiency at the site is improved.
本発明に係る泥水飛散防止用治具において，取付部１１０はケーシング２００と同一の内径及び外径の両方又はいずれか一方を有する円筒状に形成されていることが好ましい。特に，取付部１１０の内径及び外径の両方がケーシング２００と一致していることが好ましい。これにより，取付部１１０をケーシング２００に強固に固定することができ，また泥水飛散防止用治具１００とケーシング２００の内部をグラブハンマ４００がスムーズに通過できるようになる。 In the muddy water scattering prevention jig according to the present invention, it is preferable that the mounting portion 110 is formed in a cylindrical shape having the same inner diameter and / or outer diameter as the casing 200. In particular, it is preferable that both the inner diameter and the outer diameter of the mounting portion 110 match the casing 200. Accordingly, the mounting portion 110 can be firmly fixed to the casing 200, and the glove hammer 400 can smoothly pass through the jig 100 for preventing muddy water from scattering and the inside of the casing 200.
本発明に係る泥水飛散防止用治具は，第１の泥避ガード１３０（上蓋）をさらに備えることが好ましい。泥避ガード１３０は，泥水飛散防止用治具１００の上端部に取り付けられ，側壁部１２０の断面形状に対応する扇形に形成されたものである。このように，上蓋用の泥避ガード１３０を泥水飛散防止用治具１００の上端に取り付けておくことで，この上端部から泥水が飛散することを防止できるため，泥水の飛散範囲を小さく留めることが可能となる。 It is preferable that the jig for preventing muddy water scattering according to the present invention further includes a first mudguard guard 130 (top lid). The mud guard 130 is attached to the upper end of the jig 100 for preventing muddy water from scattering, and is formed in a fan shape corresponding to the cross-sectional shape of the side wall 120. By attaching the upper cover mud evacuation guard 130 to the upper end of the mud splash prevention jig 100 in this way, it is possible to prevent the muddy water from being scattered from the upper end portion. Becomes possible.
本発明に係る泥水飛散防止用治具において，第１の泥避ガード１３０は，その中心角頂点からその円周方向に向かって放射状に切込みが形成された菊割れ蓋部１３１を有することが好ましい。この菊割れ蓋部１３１は，例えばゴムなどの可撓性材料で形成されていると良い。このように泥避ガード１３０に菊割れ蓋部１３１を設けることで，泥水飛散防止用治具１００の上端部から泥水が飛散することを防止しつつ，グラブハンマ４００が泥避ガード１３０に接触しても両者に損壊が発生する可能性を低くすることができる。 In the muddy water splash prevention jig according to the present invention, the first mudguard guard 130 preferably has a chrysanthemum crack lid 131 formed with a notch radially from the center angle vertex toward the circumferential direction. . The chrysanthemum split lid 131 is preferably made of a flexible material such as rubber. By providing the chrysanthemum cracking lid 131 on the mudguard 130 in this manner, the glove hammer 400 contacts the mudguard 130 while preventing muddy water from scattering from the upper end of the jig 100 for preventing muddy water. Also, the possibility of damage to both can be reduced.
本発明に係る泥水飛散防止用治具は，第２の泥避ガード１４０（底蓋）をさらに備えることが好ましい。第２の泥避ガード１４０は，取付部１１０と側壁部１２０の境界部分に取り付けられており，少なくとも取付部１１０のうちの側壁部１２０から突出した部分を覆うことができ，さらに開閉自在に構成されている。底蓋用の泥避ガード１４０を取付部１１０と側壁部１２０の境界部分に取り付けておくことで，この境界部分から泥水が飛散することを防止できるため，泥水の飛散範囲を小さく留めることが可能となる。 The jig for preventing muddy water from scattering according to the present invention preferably further includes a second mudguard guard 140 (bottom lid). The second mudguard 140 is attached to the boundary between the attachment portion 110 and the side wall portion 120, and can cover at least a portion of the attachment portion 110 protruding from the side wall portion 120, and is further configured to be openable and closable. Have been. By attaching the bottom cover mud evacuation guard 140 to the boundary between the mounting part 110 and the side wall part 120, muddy water can be prevented from being scattered from this boundary, so that the scattered area of muddy water can be kept small. It becomes.
本発明の第２の側面は，掘削システムに関する。本発明に係る掘削システムは，上記した第１の側面に係る泥水飛散防止用治具１００と，この泥水飛散防止用治具１００が取り付けられるケーシング２００と，このケーシング２００を上下に進退駆動させる全周回転掘削機３００と，泥水飛散防止用治具１００及びケーシング２００内を通過するグラブハンマ４００とを備える。 A second aspect of the present invention relates to a drilling system. The excavation system according to the present invention includes a jig 100 for preventing muddy water scattering according to the first aspect described above, a casing 200 to which the jig 100 for preventing muddy water scattering is attached, and an all-or-nothing drive for moving the casing 200 up and down. It comprises a peripheral rotating excavator 300, a jig 100 for preventing muddy water scattering, and a grab hammer 400 passing through the inside of the casing 200.
本発明によれば，ケーシング内に泥水の飛散を効果的に防止することのできる治具を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the jig which can prevent splash of muddy water in a casing effectively can be provided.
以下，図面を用いて本発明を実施するための形態について説明する。本発明は，以下に説明する形態に限定されるものではなく，以下の形態から当業者が自明な範囲で適宜変更したものも含む。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. This invention is not limited to the form demonstrated below, The thing suitably changed in the range obvious to those skilled in the art from the following forms is also included.
図１は，泥水飛散防止用治具１００，掘削用のケーシング２００，全周回転掘削機３００，及びグラブハンマ４００を備える掘削システムを示した正面図と側面図である。また，図１では，Ｉ−Ｉ線における泥水飛散防止用治具１００の断面形状を示している。図２〜４は，この掘削システムを利用した工事フローを示している，また，図５では，泥水飛散防止用治具１００の構造を模式的に示している。 FIG. 1 is a front view and a side view showing an excavation system including a muddy water scattering prevention jig 100, an excavating casing 200, an all-round rotary excavator 300, and a grab hammer 400. FIG. 1 shows the cross-sectional shape of the jig 100 for preventing muddy water from scattering along the line II. 2 to 4 show a construction flow using the excavation system, and FIG. 5 schematically shows a structure of a jig 100 for preventing muddy water from scattering.
本発明において，ケーシング２００，全周回転掘削機３００，及びグラブハンマ４００としては公知のものを適宜用いることができる。つまり，本発明は，泥水飛散防止用治具１００の構造に特徴を有するものである。 In the present invention, as the casing 200, the all-round excavator 300, and the grab hammer 400, known ones can be appropriately used. That is, the present invention is characterized by the structure of the jig 100 for preventing muddy water from scattering.
各図に示されるように，泥水飛散防止用治具１００は，ケーシング２００の上端部に取り付けて使用される。泥水飛散防止用治具１００のサイズは，ケーシング２００のサイズに併せて適宜調節すればよいが，例えばその高さは３〜４０ｍ，５〜３０ｍ，又は８〜２０ｍとし，その直径は０．５〜１０ｍ，１〜８ｍ，又は１．５〜５ｍとすることが好ましい。また，泥水飛散防止用治具１００を構成する取材料も特に限定されず，銅，アルミ，スチールなどの金属材料や，これら金属材料と炭素材料を混合したものであってもよい。 As shown in each figure, the muddy water scattering prevention jig 100 is used by being attached to the upper end of a casing 200. The size of the muddy water scattering prevention jig 100 may be appropriately adjusted according to the size of the casing 200. For example, the height is 3 to 40 m, 5 to 30 m, or 8 to 20 m, and the diameter is 0.5. It is preferably from 10 to 10 m, from 1 to 8 m, or from 1.5 to 5 m. In addition, the material constituting the jig 100 for preventing muddy water scattering is not particularly limited, and may be a metal material such as copper, aluminum, or steel, or a mixture of these metal materials and a carbon material.
泥水飛散防止用治具１００は，ケーシング２００の上端部に取り付け可能な取付部１１０と，この取付部１１０の上方に延在する側壁部１２０とを備える。側壁部１２０は，例えば図１に示すように，断面円弧状に形成されている。側壁部１２０をなす円弧の中心角は，９０度〜２７０度であることが好ましく，１６０度〜２００度，特に１８０度であることが好ましい。また，取付部１１０は，ケーシング２００と内径及び／又は外径が等しい円筒状に形成されている。取付部１１０は，例えばケーシング２００に対してボルト接合にて取り外し可能に接合されていることが好ましい。例えば，泥水飛散防止用治具１００の取付部１１０とケーシング２００の上端のそれぞれにフランジを設けておき，これらの両フランジを突き合わせた状態でボルト接合することとしてもよい。泥水飛散防止用治具１００は，これらの円筒状の取付部１１０と断面円弧状の側壁部１２０とが一体的に成型されたものである。 The muddy water scattering prevention jig 100 includes a mounting portion 110 that can be mounted on the upper end of the casing 200 and a side wall portion 120 that extends above the mounting portion 110. The side wall part 120 is formed in an arc-shaped cross section, for example, as shown in FIG. The central angle of the circular arc forming the side wall portion 120 is preferably 90 degrees to 270 degrees, more preferably 160 degrees to 200 degrees, and particularly preferably 180 degrees. The mounting portion 110 is formed in a cylindrical shape having the same inner diameter and / or outer diameter as the casing 200. It is preferable that the mounting portion 110 is detachably joined to the casing 200 by, for example, bolting. For example, a flange may be provided at each of the mounting portion 110 of the jig 100 for preventing muddy water scattering and the upper end of the casing 200, and the two flanges may be bolted together with the two flanges abutting each other. The muddy water scattering prevention jig 100 is formed by integrally molding the cylindrical mounting portion 110 and the side wall portion 120 having an arc-shaped cross section.
また，泥水飛散防止用治具１００の側壁部１２０の上端には，その上部開口を塞ぐために，上蓋用の泥避ガード１３０を設けておくことが好ましい。上蓋用の泥避ガード１３０は，側壁部１２０の断面円弧状に対応する扇形に形成されている。なお，「扇形」とは，円の２本の半径とその間にある円弧によって囲まれた平面図形を意味する。例えば，側壁部１２０の円弧状の中心角が１８０度である場合には，泥避ガード１３０は，中心角を１８０度とする扇形に形成される。また，泥避ガード１３０の中心角周りには部分的に菊割れ蓋部１３１を設けておくとよい。菊割れ蓋部１３１は，例えばゴムなどの可撓性材料によって形成された部位である。菊割れ蓋部１３１を形成する可撓性材料は，その中心角頂点からその円周方向に向かって放射状に切込みが形成されている。このため，菊割れ蓋部１３１は泥水の飛散を防ぎつつ，そこを例えばグラブハンマ４００の一部などが通過できるようになっている。 Further, it is preferable to provide a mud guard 130 for an upper lid at the upper end of the side wall portion 120 of the jig 100 for preventing muddy water from scattering to close the upper opening. The mudguard 130 for the upper lid is formed in a sector shape corresponding to the circular arc shape of the side wall 120. The term "sector" means a plane figure surrounded by two radii of a circle and an arc between them. For example, when the arc-shaped central angle of the side wall portion 120 is 180 degrees, the mudguard 130 is formed in a fan shape having the central angle of 180 degrees. A chrysanthemum cracking lid 131 may be provided partially around the center angle of the mudguard 130. The chrysanthemum split lid 131 is a portion formed of a flexible material such as rubber, for example. The flexible material forming the chrysanthemum split lid 131 has a cut formed radially from the center angle vertex toward the circumferential direction. For this reason, the chrysanthemum cracking lid 131 prevents the muddy water from scattering and allows a part of the glove hammer 400 to pass therethrough.
続いて，図２〜５を参照して，泥水飛散防止用治具１００を備える掘削システムの利用方法について説明する。まず，掘削用のケーシング２００の上端に泥水飛散防止用治具１００を取り付けた状態で，このケーシング２００を全周回転掘削機３００によって地中へと回転させながら貫入させる。その後，グラブハンマ４００をクローラークレーンで吊り下げながら搬送し，泥水飛散防止用治具１００をガイドとして利用しつつ，グラブハンマ４００をケーシング２００内に降下させる。そして，グラブハンマ４００によってケーシング２００によって囲われた切削障害（例えばコンクリート粉砕物など）を把持し，そのまま地上へと吊り上げる。 Subsequently, with reference to FIGS. 2 to 5, a description will be given of a method of using the drilling system including the jig 100 for preventing muddy water from scattering. First, with the jig 100 for preventing muddy water scattering attached to the upper end of the casing 200 for excavation, the casing 200 is penetrated while being rotated into the ground by the all-round rotary excavator 300. Thereafter, the grab hammer 400 is conveyed while being suspended by a crawler crane, and the grab hammer 400 is lowered into the casing 200 while using the muddy water scattering prevention jig 100 as a guide. Then, the cutting obstacle (for example, a crushed concrete material) surrounded by the casing 200 is grasped by the grab hammer 400 and lifted to the ground as it is.
ただし，グラブハンマ４００によって切削障害を吊り上げる際に，その切削障害がグラブハンマ４００から外れて，再びケーシング２００内に落下する場合がある。ケーシング２００内には泥水が充満しているため，大質量の切削障害が落下すると，ケーシング２００内部から泥水が地上へと噴出するおそれがある。このとき，前述したように，ケーシング２００の上端に泥水飛散防止用治具１００を備え付けられておくことにより，この治具１００の側壁部１２０が設けられた方へは泥水が飛散することを防止できる。例えば，泥水飛散防止用治具１００の側壁部１２０は，通行人などの場外第三者が存在する方向に向けた状態で，ケーシング２００上端部に取り付けることが有効である。 However, when the cutting obstacle is lifted by the grab hammer 400, the cutting obstacle may come off the grab hammer 400 and fall into the casing 200 again. Since the casing 200 is filled with muddy water, if a large-mass cutting obstacle falls, the muddy water may be ejected from the inside of the casing 200 to the ground. At this time, as described above, the jig 100 for preventing muddy water from scattering is provided at the upper end of the casing 200 to prevent the muddy water from being scattered toward the side where the side wall portion 120 of the jig 100 is provided. it can. For example, it is effective to attach the side wall portion 120 of the mud splash prevention jig 100 to the upper end portion of the casing 200 in a state where the side wall portion 120 faces a direction in which a third party such as a passerby exists.
図６は，掘削システムの別例を示している。図６に示した例では，上記構成に加えて，泥水飛散防止用治具１００に，底蓋用の泥避ガード１４０（第２の泥避ガード）が取り付けられている。底蓋用の泥避ガード１４０は，泥水飛散防止用治具１００のうち，取付部１１０と側壁部１２０の境界部分に取り付けられおり，側壁部１２０から突出した取付部１１０の開口部分を覆うことができる形状となっている。具体的には，底蓋用の泥避ガード１４０は，取付部１１０のうちの側壁部１２０から突出した部分の断面円弧状に対応する扇形に形成されている。例えば，底蓋用の泥避ガード１４０は，上蓋用の泥避ガード１３０と同様に，中心角を１８０度とする扇形に形成される。また，底蓋用の泥避ガード１４０にも，上蓋用の泥避ガード１３０と同様に，その中心角周りに菊割れ蓋部１４１を設けておくとよい。さらに，底蓋用の泥避ガード１４０には，取手１４２と蝶番１４３とが設けられており，この蝶番１４３を回動支点として自由に開閉することができるようになっている。例えば，図６に示すように，グラブハンマ４００が通過する際には底蓋用の泥避ガード１４０を開いた状態としておき，このグラブハンマ４００がケーシング２００の内部に降下された後に，この底蓋用の泥避ガード１４０を閉じるようにすればよい。これにより，底蓋用の泥避ガード１４０では，取付部１１０のうちの側壁部１２０から突出した部分から，ケーシング２００内の泥水が噴出することを防止できる。 FIG. 6 shows another example of the drilling system. In the example shown in FIG. 6, a mudguard guard 140 (second mudguard) for the bottom lid is attached to the jig 100 for preventing muddy water from scattering in addition to the above configuration. The bottom cover mudguard 140 is attached to the boundary between the mounting portion 110 and the side wall portion 120 of the jig 100 for preventing muddy water scattering, and covers the opening of the mounting portion 110 protruding from the side wall portion 120. It is a shape that can be. Specifically, the mudguard guard 140 for the bottom cover is formed in a sector shape corresponding to an arc-shaped cross section of a portion of the mounting portion 110 protruding from the side wall 120. For example, the mudguard guard 140 for the bottom lid is formed in a fan shape having a central angle of 180 degrees, like the mudguard 130 for the top lid. Also, the mudguard guard 140 for the bottom lid may be provided with a chrysanthemum cracking lid 141 around the center angle thereof, similarly to the mudguard guard 130 for the upper lid. Further, a handle 142 and a hinge 143 are provided on the mud evasion guard 140 for the bottom cover, and the hinge 143 can be freely opened and closed using the hinge 143 as a pivot. For example, as shown in FIG. 6, when the glove hammer 400 passes, the mud guard 140 for the bottom cover is kept open, and after the glove hammer 400 is lowered into the casing 200, The mud evacuation guard 140 may be closed. Accordingly, in the mud guard 140 for the bottom lid, it is possible to prevent the muddy water in the casing 200 from spouting from the portion of the mounting portion 110 protruding from the side wall 120.
以上，本願明細書では，本発明の内容を表現するために，図面を参照しながら本発明の実施形態の説明を行った。ただし，本発明は，上記実施形態に限定されるものではなく，本願明細書に記載された事項に基づいて当業者が自明な変更形態や改良形態を包含するものである。 As mentioned above, in this specification, in order to express the content of this invention, embodiment of this invention was described, referring drawings. However, the present invention is not limited to the above-described embodiments, but includes modifications and improvements obvious to those skilled in the art based on the matters described in the present specification.
本発明は，泥水飛散防止用治具及びそれを用いた掘削システムに関する。従って，本発明は，土木産業において好適に利用し得る。 The present invention relates to a jig for preventing muddy water from scattering and a drilling system using the same. Therefore, the present invention can be suitably used in the civil engineering industry.
１００…汚泥飛散防止用治具
１１０…取付部
１２０…側壁部
１３０…泥避ガード（上蓋）
１４０…泥避ガード（底蓋）
２００…ケーシング
３００…全周回転掘削機
４００…グラブハンマ
100: Sludge scattering prevention jig 110: Mounting part 120: Side wall part 130: Mud escape guard (top lid)
140 ... Mud guard (bottom lid)
200 ... casing 300 ... all-round rotary excavator 400 ... grab hammer
Claims (6)
前記取付部（１１０）の上方に延在する断面円弧状の側壁部（１２０）とを備える
泥水飛散防止用治具。 An attachment portion (110) attached to an upper end portion of a casing (200) driven up and down by an all-round rotary excavator (300);
A jig for preventing scattering of muddy water, comprising: a side wall (120) having an arc-shaped cross section extending above the mounting part (110).
請求項１に記載の泥水飛散防止用治具。 The jig for preventing splashing of muddy water according to claim 1, wherein the mounting portion (110) is formed in a cylindrical shape having the same inner diameter and / or outer diameter as the casing (200).
請求項１又は請求項２に記載の泥水飛散防止用治具。 The mud splash prevention according to claim 1 or 2, further comprising a fan-shaped mud guard (130) attached to an upper end of the mud splash prevention jig and corresponding to a cross-sectional shape of the side wall (120). Jig.
請求項３に記載の泥水飛散防止用治具。 The jig for preventing splashing of muddy water according to claim 3, wherein the mudguard guard (130) has a chrysanthemum cracked lid portion (131) having a notch formed radially from a vertex of a central angle toward a circumferential direction thereof.
請求項１から請求項４のいずれかに記載の泥水飛散防止用治具。 An openable and closable second part that is attached to a boundary between the attachment part (110) and the side wall part (120) and covers at least a part of the attachment part (110) protruding from the side wall part (120). The mud splash prevention jig according to claim 1, further comprising a mud guard (140).
前記泥水飛散防止用治具（１００）が取り付けられるケーシング（２００）と，
前記ケーシング（２００）を上下に進退駆動させる全周回転掘削機（３００）と，
前記泥水飛散防止用治具（１００）及び前記ケーシング（２００）内を通過するグラブハンマ（４００）とを備える
掘削システム。 A jig (100) for preventing splashing of muddy water according to any one of claims 1 to 4,
A casing (200) to which the jig for preventing muddy water scattering (100) is attached;
An all-round rotary excavator (300) for driving the casing (200) up and down,
An excavation system comprising: the mud splash prevention jig (100); and a grab hammer (400) passing through the casing (200).
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59163687U (en) * | 1983-04-18 | 1984-11-01 | 日立建機株式会社 | Swivel joint muddy water scattering prevention device |
| JPH064190U (en) * | 1991-08-29 | 1994-01-18 | 株式会社フジタ | Excavator seat device |
| JPH0618492U (en) * | 1992-04-01 | 1994-03-11 | 松尾 政夫 | Water droplet splash prevention device |
| JPH0988469A (en) * | 1995-09-26 | 1997-03-31 | Maeda Corp | Sludge scatter-prevention jig for excavation work |
| JPH11280108A (en) * | 1998-03-31 | 1999-10-12 | ▲高▼松建設株式会社 | Liquid scattering prevention device for excavator |
| KR100224693B1 (en) * | 1997-02-19 | 1999-10-15 | 윤종용 | Capacitor manufacturing method of semiconductor memory device |
| JP2000087678A (en) * | 1998-09-10 | 2000-03-28 | Nishimatsu Constr Co Ltd | Scattering preventive device for drilling mud and dust |
| JP2005097868A (en) * | 2003-09-22 | 2005-04-14 | Copros Co Ltd | Casing for shaft excavation, and shaft excavating method using the same |
| JP2011032775A (en) * | 2009-08-04 | 2011-02-17 | Sugawara Kensetsu:Kk | Drilling method for vertical hole, and spattering preventive cover for hammer grab |
| JP2012102559A (en) * | 2010-11-11 | 2012-05-31 | Kiso Engineering Kk | Method for removing existing pile |
| JP2017066721A (en) * | 2015-09-30 | 2017-04-06 | 株式会社大林組 | Removal method of existing pile |
| JP2018017001A (en) * | 2016-07-27 | 2018-02-01 | 日立住友重機械建機クレーン株式会社 | Earth drill |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101224693B1 (en) | 2012-04-20 | 2013-01-21 | 김진팔 | Appratus for preventing dust-scattering of auger machine |
-
2018
- 2018-06-12 JP JP2018111995A patent/JP7160569B2/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59163687U (en) * | 1983-04-18 | 1984-11-01 | 日立建機株式会社 | Swivel joint muddy water scattering prevention device |
| JPH064190U (en) * | 1991-08-29 | 1994-01-18 | 株式会社フジタ | Excavator seat device |
| JPH0618492U (en) * | 1992-04-01 | 1994-03-11 | 松尾 政夫 | Water droplet splash prevention device |
| JPH0988469A (en) * | 1995-09-26 | 1997-03-31 | Maeda Corp | Sludge scatter-prevention jig for excavation work |
| KR100224693B1 (en) * | 1997-02-19 | 1999-10-15 | 윤종용 | Capacitor manufacturing method of semiconductor memory device |
| JPH11280108A (en) * | 1998-03-31 | 1999-10-12 | ▲高▼松建設株式会社 | Liquid scattering prevention device for excavator |
| JP2000087678A (en) * | 1998-09-10 | 2000-03-28 | Nishimatsu Constr Co Ltd | Scattering preventive device for drilling mud and dust |
| JP2005097868A (en) * | 2003-09-22 | 2005-04-14 | Copros Co Ltd | Casing for shaft excavation, and shaft excavating method using the same |
| JP2011032775A (en) * | 2009-08-04 | 2011-02-17 | Sugawara Kensetsu:Kk | Drilling method for vertical hole, and spattering preventive cover for hammer grab |
| JP2012102559A (en) * | 2010-11-11 | 2012-05-31 | Kiso Engineering Kk | Method for removing existing pile |
| JP2017066721A (en) * | 2015-09-30 | 2017-04-06 | 株式会社大林組 | Removal method of existing pile |
| JP2018017001A (en) * | 2016-07-27 | 2018-02-01 | 日立住友重機械建機クレーン株式会社 | Earth drill |
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