JP2007247265A - Guide rod for boring rock bed - Google Patents

Guide rod for boring rock bed Download PDF

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Publication number
JP2007247265A
JP2007247265A JP2006072200A JP2006072200A JP2007247265A JP 2007247265 A JP2007247265 A JP 2007247265A JP 2006072200 A JP2006072200 A JP 2006072200A JP 2006072200 A JP2006072200 A JP 2006072200A JP 2007247265 A JP2007247265 A JP 2007247265A
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Prior art keywords
guide rod
slip member
rock
tip
rod
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Pending
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JP2006072200A
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Japanese (ja)
Inventor
Koji Ishiyama
宏二 石山
Masayuki Yamashita
雅之 山下
Satoru Kimura
哲 木村
Toshiaki Hara
敏昭 原
Mitsumasa Okamura
光政 岡村
Kazuaki Ishigaki
和明 石垣
Masashi Naito
将史 内藤
Junichi Tsukada
純一 塚田
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Nishimatsu Construction Co Ltd
Toda Corp
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Nishimatsu Construction Co Ltd
Toda Corp
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Priority to JP2006072200A priority Critical patent/JP2007247265A/en
Publication of JP2007247265A publication Critical patent/JP2007247265A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To facilitate initial boring by using a guide rod for boring a rock bed to prevent a slip of a bit. <P>SOLUTION: The guide rod 7 provided at a rock bed boring device almost parallel with the bit 3 and inserted in a preceding hole bored in the rock bed is provided with a slip preventive member 8 to a working face at the tip of the rod. The slip preventive member 8 is detachable from the rod tip and formed of an elastic body. The slip preventive member 8 has a light emitting part or a light reflecting part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、岩盤に連続孔を削孔する際に用いられるガイドロッドに関する。   The present invention relates to a guide rod used when drilling a continuous hole in a rock mass.

岩盤削孔装置において、例えば特許文献１で知られるように、岩盤に削孔した先行孔に挿入するガイドロッドが備えられる。
特開２００４−２６３４４５号公報 In the rock drilling device, for example, as is known in Patent Document 1, a guide rod is provided that is inserted into a preceding hole drilled in the rock.
JP 2004-263445 A

従来、岩盤に存在する潜在亀裂、あるいは掘削作業の影響で切羽面には著しい凹凸が存在するため、ドリルジャンボによる初期削孔作業（ざぐり）おいて、先端部のビットが切羽に出来た面に沿って滑り、所定の削孔位置を削孔できないという問題があった。ただし、この問題を解決するため従来は、ガイドセル先端部に硬質ゴム製のパッドを設けて滑り止め部材としていたが、場合によっては、パッドによる一点支持だけでは不十分な状況があった。
また、暗いトンネル坑内での割岩作業において、ドリルジャンボのガイドセル先端部に取り付けているガイドロッドを、削孔した先行孔に挿入する際、ガイドロッドが切羽岩盤（あるいは吹付けコンクリート）の色と同化してしまい、ガイドロッドの先端部が見にくい状況もあった。 Conventionally, there is a significant unevenness on the face due to latent cracks in the rock or due to the effect of excavation work, so in the initial drilling work (drilling) with a drill jumbo, the bit at the tip is made on the face. There was a problem that the predetermined drilling position could not be drilled. However, conventionally, in order to solve this problem, a hard rubber pad is provided at the tip of the guide cell as a non-slip member. However, depending on the case, there is a situation where it is not sufficient to support only one point by the pad.
In addition, when the guide rod attached to the tip of the guide cell of the drill jumbo is inserted into the drilled preceding hole in the split rock work in the dark tunnel pit, the guide rod is the same as the face rock (or shotcrete) color. There was a situation where it was assimilated and it was difficult to see the tip of the guide rod.

本発明の課題は、岩盤削孔用ガイドロッドを利用して、ビットの滑りを防止して初期削孔を容易にすることである。   An object of the present invention is to use a rock drilling guide rod to prevent the bit from slipping and facilitate initial drilling.

以上の課題を解決するため、請求項１に記載の発明は、岩盤削孔装置にビットとほぼ平行に備えられ、岩盤に削孔した先行孔に挿入するガイドロッドであって、ロッド先端に、切羽面に対する滑り止め部材を備えることを特徴とする。   In order to solve the above problems, the invention described in claim 1 is a guide rod provided in a rock drilling device substantially parallel to a bit and inserted into a preceding hole drilled in the rock, An anti-slip member for the face surface is provided.

請求項２に記載の発明は、請求項１に記載の岩盤削孔用ガイドロッドであって、前記滑り止め部材は、ロッド先端に対し着脱可能となっていることを特徴とする。   A second aspect of the present invention is the rock drilling guide rod according to the first aspect, wherein the anti-slip member is detachable from the rod tip.

請求項３に記載の発明は、請求項１または２に記載の岩盤削孔用ガイドロッドであって、前記滑り止め部材は、弾性体により形成されていることを特徴とする。   A third aspect of the present invention is the rock drilling guide rod according to the first or second aspect, wherein the anti-slip member is formed of an elastic body.

請求項４に記載の発明は、請求項１から３のいずれか一項に記載の岩盤削孔用ガイドロッドであって、前記滑り止め部材は、発光部を有することを特徴とする。   A fourth aspect of the present invention is the rock drilling guide rod according to any one of the first to third aspects, wherein the anti-slip member has a light emitting portion.

請求項５に記載の発明は、請求項１から４のいずれか一項に記載の岩盤削孔用ガイドロッドであって、前記滑り止め部材は、光反射部を有することを特徴とする。   A fifth aspect of the present invention is the rock drilling guide rod according to any one of the first to fourth aspects, wherein the anti-slip member has a light reflecting portion.

本発明によれば、ガイドロッドの先端部を切羽面に当てた状態で滑り止めして、ビットによる初期削孔が容易に行える。   According to the present invention, it is possible to easily perform initial drilling with a bit by preventing slippage in a state where the tip end portion of the guide rod is in contact with the face surface.

以下、図を参照して本発明を実施するための最良の形態を詳細に説明する。
図１は本発明を適用した一実施形態の構成を示すもので、岩盤削孔装置は、ガイドセル１上に図示しない削岩機を前進後退動作可能に備えている。ガイドセル１は図示しない自走式機械（ドリルジャンボ）に装備されており、削岩機は図示しない駆動装置によりガイドセル１上を前進後退動作する。 Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a configuration of an embodiment to which the present invention is applied. A rock drilling apparatus includes a rock drill (not shown) on a guide cell 1 so as to be capable of moving forward and backward. The guide cell 1 is mounted on a self-propelled machine (drill jumbo) (not shown), and the rock drill moves forward and backward on the guide cell 1 by a driving device (not shown).

削岩機は、先端にビット３が固定して設けられた削孔ロッド４を装着したもので、この削孔ロッド４を回転駆動する。削孔ロッド４は、ガイドセル１の先端に設けたブラケット５に回転自在に支持されている。
なお、ガイドセル１の先端面にはパッド６が設けられている。パッド６は、例えば硬質ゴム等の弾性体製で切羽面に対する滑り止め材として機能する。
また、ブラケット５には、削孔ロッド４とほぼ平行で前方に突出するガイドロッド７が固定して備えられている。 The rock drilling machine is equipped with a drilling rod 4 provided with a bit 3 fixed at the tip, and the drilling rod 4 is driven to rotate. The drilling rod 4 is rotatably supported by a bracket 5 provided at the tip of the guide cell 1.
A pad 6 is provided on the distal end surface of the guide cell 1. The pad 6 is made of an elastic material such as hard rubber and functions as a non-slip material for the face surface.
The bracket 5 is provided with a guide rod 7 that is fixed in parallel with the drilling rod 4 and protrudes forward.

ガイドロッド７は、図２に示すように、基部７ａに備えた小径ロッド７ｂに大径ロッド７ｃをスライド自在に組み付けて伸縮可能に構成されており、基部７ａでブラケット５に固定して組み付けられる。
そして、ガイドロッド７の大径ロッド７ｃの先端には滑り止め部材８が備えられている。滑り止め部材８は、図示例では円筒形状で、耐磨耗製、耐候性、耐熱性に優れ、衝撃による破壊を受けにくいゴム（ウレタンゴム、天然ゴム、合成ゴム等）やプラスチック等の弾性体製であり、硬度が45〜95程度のものである。 As shown in FIG. 2, the guide rod 7 is configured to be slidably assembled to a small-diameter rod 7b provided in the base portion 7a so as to be slidable. The guide rod 7 is fixed to the bracket 5 by the base portion 7a. .
An anti-slip member 8 is provided at the tip of the large-diameter rod 7 c of the guide rod 7. The anti-slip member 8 has a cylindrical shape in the illustrated example, and is an elastic body such as rubber (urethane rubber, natural rubber, synthetic rubber, etc.) or plastic that is excellent in wear resistance, weather resistance, heat resistance, and is not easily damaged by impact. It has a hardness of about 45 to 95.

さらに、滑り止め部材８は、トンネル内照明にて発光・反射可能な、例えば有機の蛍光顔料や蛍光染料等の蛍光体製の発光部、例えば無機の硫化亜鉛や硫化カルシウム等の蓄光体製の発光部、あるいは例えばＬＥＤ等の発光源を有する発光部でもある。
この滑り止め部材８は、図３に示すように、その内径孔８ａの基部側の小径孔８ｂにカラー１１を挿入し、内径孔８ａと小径孔８ｂの段面に座金１２を当てて、ネジ１３を内径孔８ａ及び小径孔８ｂから大径ロッド７ｃの先端面にネジ込むことで、ガイドロッド７に対し着脱可能となっている。 Further, the anti-slip member 8 is made of a light emitting part made of a phosphor such as an organic fluorescent pigment or a fluorescent dye, which can emit and reflect light in the tunnel, for example, a phosphorescent material such as an inorganic zinc sulfide or calcium sulfide. It is also a light emitting part or a light emitting part having a light emitting source such as an LED.
As shown in FIG. 3, the anti-slip member 8 has a collar 11 inserted into a small diameter hole 8b on the base side of the inner diameter hole 8a, and a washer 12 is applied to the stepped surfaces of the inner diameter hole 8a and the small diameter hole 8b. 13 is screwed into the distal end surface of the large-diameter rod 7c from the inner-diameter hole 8a and the small-diameter hole 8b, so that it can be attached to and detached from the guide rod 7.

次に、岩盤への削孔作業を説明する。
図示しない自走式機械（ドリルジャンボ）の駆動によりガイドセル１を移動して、ガイドセル１の先端部のブラケット５に備えたガイドロッド７を、岩盤の切羽面に突き当てる。すなわち、岩盤の切羽面に対しガイドロッド７の先端の滑り止め部材８を突き当てる。
このとき、滑り止め部材８はトンネル内照明にて発光・反射可能な発光部でもあるため、作業者は、ガイドロッド７先端の滑り止め部材８の発光を見て確認しながら、岩盤の切羽面に対し確実に突き当てることができる。 Next, drilling work on the rock mass will be described.
The guide cell 1 is moved by driving a self-propelled machine (drill jumbo) (not shown), and the guide rod 7 provided on the bracket 5 at the tip of the guide cell 1 is abutted against the face of the rock. That is, the anti-slip member 8 at the tip of the guide rod 7 is abutted against the face of the rock.
At this time, since the anti-slip member 8 is also a light-emitting part that can emit and reflect light in the tunnel, the operator can check the light emission of the anti-slip member 8 at the tip of the guide rod 7 and confirm the light emission. Can be reliably abutted against.

そして、先行孔を含む単独孔削孔時は、岩盤の切羽面に対し、ガイドロッド７の先端の滑り止め部材８とガイドセル１の先端のパッド６とをともに突き当てた状態で単独孔が削孔される。すなわち、ガイドセル１上に削岩機を前進させると、削孔ロッド４の先端に備えたビット３の回転により削孔されるともに、ガイドロッド７は、ブラケット５に固定の基部７ａに備えた小径ロッド７ｂが、岩盤に突き当てた大径ロッド７ｃに中に入り込んで全長が縮んでいく。
このとき、ガイドロッド７は、その先端部の滑り止め部材８が切羽面に対し突き当てて滑り止めされているとともに、ガイドセル１の先端のパッド６も切羽面に対し突き当てて滑り止めされているため、これら２点での滑り止めにより、先行孔を含む単独孔を確実に削孔できる。 When a single hole including the preceding hole is drilled, the single hole is formed with both the anti-slip member 8 at the tip of the guide rod 7 and the pad 6 at the tip of the guide cell 1 abutting against the face of the rock. Drilled. That is, when the rock drill is advanced on the guide cell 1, the hole is drilled by the rotation of the bit 3 provided at the tip of the drilling rod 4, and the guide rod 7 is provided on the base 7 a fixed to the bracket 5. The small-diameter rod 7b enters into the large-diameter rod 7c abutted against the rock, and the entire length is reduced.
At this time, the guide rod 7 is prevented from slipping by the anti-slip member 8 at the tip of the guide rod 7 being abutted against the face and the pad 6 at the tip of the guide cell 1 is also abutted against the face. Therefore, it is possible to reliably drill a single hole including the preceding hole by preventing slipping at these two points.

また、連続孔削孔時には、ガイドロッド７を、岩盤に予め削孔された先行孔に挿入しておく。すなわち、ブラケット５に固定した基部７ａに備えた小径ロッド７ｂから前方に伸びて先端に滑り止め部材８を備えた大径ロッド７ｃを先行孔に挿入しておく。
次いで、削岩機２を駆動して削孔ロッド４を回転させると同時に、削岩機２を前進させていく。従って、削孔ロッド４の先端に備えたビット３の回転により岩盤に連続孔が削孔されていく。
このとき、削孔ロッド４はブラケット５を介しガイドロッド７とほぼ平行に維持されるため、間隔を一定に保ったまま連続孔が削孔される。
以上のように、単独孔及び連続孔を削孔できる。 Further, at the time of continuous drilling, the guide rod 7 is inserted into a preceding hole drilled in advance in the rock. That is, a large-diameter rod 7c that extends forward from a small-diameter rod 7b provided in a base portion 7a fixed to the bracket 5 and includes a non-slip member 8 at the tip is inserted into the preceding hole.
Next, the rock drill 2 is driven to rotate the drill rod 4 and simultaneously the rock drill 2 is advanced. Therefore, the continuous hole is drilled in the rock by the rotation of the bit 3 provided at the tip of the drilling rod 4.
At this time, the drilling rod 4 is maintained substantially parallel to the guide rod 7 via the bracket 5, so that the continuous hole is drilled while maintaining a constant interval.
As described above, single holes and continuous holes can be drilled.

以上の実施形態では、滑り止め部材を発光部としたが、滑り止め部材を光反射部としても良い。すなわち、滑り止め部材を、トンネル内照明にて反射可能な、例えば無機の微小硝子球やレンズ等を有する光反射部としても良い。
また、実施形態では、ガイドロッドに対し滑り止め部材をネジにより着脱可能としたが、ガイドロッドに対し滑り止め部材をキャップ式等により着脱可能としても良い。 In the above embodiment, the anti-slip member is the light emitting part, but the anti-slip member may be the light reflecting part. In other words, the anti-slip member may be a light reflecting portion having, for example, an inorganic minute glass sphere or a lens that can be reflected by the tunnel illumination.
In the embodiment, the anti-slip member can be attached to and detached from the guide rod by a screw, but the anti-slip member may be attached to and detached from the guide rod by a cap type or the like.

なお、以上の実施形態においては、滑り止め部材を発光部または光反射部としたが、本発明はこれに限定されるものではなく、滑り止め部材の少なくとも一部に発光部または光反射部を設けても良い。
また、実施形態では、伸縮可能なガイドロッドについて説明したが、伸縮しないガイドロッドであっても良く、その構造や形状は任意である。 In the above embodiment, the anti-slip member is the light emitting part or the light reflecting part. However, the present invention is not limited to this, and the light emitting part or the light reflecting part is provided on at least a part of the anti-slip member. It may be provided.
Moreover, although the guide rod which can be expanded-contracted was demonstrated in embodiment, the guide rod which does not expand-contract may be sufficient, and the structure and shape are arbitrary.

また、実施形態では、円筒形状の滑り止め部材としたが、弾頭形状や円錐台形状等の滑り止め部材であっても良く、その形状は任意である。
さらに、その他、岩盤削孔装置の具体的な細部構造等についても適宜に変更可能であることは勿論である。 In the embodiment, the anti-slip member has a cylindrical shape, but may be an anti-slip member such as a warhead shape or a truncated cone shape, and the shape is arbitrary.
Furthermore, it is needless to say that the detailed structure of the rock drilling device can be changed as appropriate.

本発明を適用した一実施形態の構成を示すもので、ガイドセルを先端側から見た斜視図である。1 is a perspective view showing a configuration of an embodiment to which the present invention is applied, and viewing a guide cell from the tip side. 図１のガイドロッドの側面図である。It is a side view of the guide rod of FIG. 図２のガイドロッド先端部の分解図である。FIG. 3 is an exploded view of the distal end portion of the guide rod in FIG. 2.

符号の説明Explanation of symbols

１ ガイドセル
３ ビット
４ 削孔ロッド
５ ブラケット
６ パッド
７ ガイドロッド
８ 滑り止め部材 1 Guide cell 3 Bit 4 Drilling rod 5 Bracket 6 Pad 7 Guide rod 8 Non-slip member

Claims (5)

岩盤削孔装置にビットとほぼ平行に備えられ、岩盤に削孔した先行孔に挿入するガイドロッドであって、
ロッド先端に、切羽面に対する滑り止め部材を備えることを特徴とする岩盤削孔用ガイドロッド。 The rock drilling device is provided almost parallel to the bit, and is a guide rod that is inserted into the preceding hole drilled in the rock,
A rock drilling guide rod characterized by comprising an anti-slip member for the face surface at the tip of the rod. 前記滑り止め部材は、ロッド先端に対し着脱可能となっていることを特徴とする請求項１に記載の岩盤削孔用ガイドロッド。   2. The rock drilling guide rod according to claim 1, wherein the anti-slip member is detachable from a rod tip. 前記滑り止め部材は、弾性体により形成されていることを特徴とする請求項１または２に記載の岩盤削孔用ガイドロッド。   3. The rock drilling guide rod according to claim 1, wherein the anti-slip member is formed of an elastic body. 前記滑り止め部材は、発光部を有することを特徴とする請求項１から３のいずれか一項に記載の岩盤削孔用ガイドロッド。   The rocking hole guide rod according to any one of claims 1 to 3, wherein the anti-slip member has a light emitting portion. 前記滑り止め部材は、光反射部を有することを特徴とする請求項１から４のいずれか一項に記載の岩盤削孔用ガイドロッド。   5. The rock drilling guide rod according to claim 1, wherein the anti-slip member has a light reflecting portion.
JP2006072200A 2006-03-16 2006-03-16 Guide rod for boring rock bed Pending JP2007247265A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019120100A (en) * 2018-01-11 2019-07-22 株式会社奥村組 Drilling machine
JP2022051878A (en) * 2018-01-11 2022-04-01 株式会社奥村組 Drill machine

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JPH05156885A (en) * 1991-12-03 1993-06-22 Konoike Constr Ltd Method and apparatus for controlling location of boring by rock drill
JPH05156886A (en) * 1991-12-05 1993-06-22 Konoike Constr Ltd Method and apparatus for controlling location of boring by rock drill
JPH09279976A (en) * 1996-04-09 1997-10-28 Fujita Corp Bedrock boring device
JP2006057439A (en) * 2005-03-28 2006-03-02 Enzan Kobo:Kk Boom positioning control method for construction machinery

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914892U (en) * 1982-07-16 1984-01-28 古河鉱業株式会社 Alignment mechanism of drilling device
JPH05156885A (en) * 1991-12-03 1993-06-22 Konoike Constr Ltd Method and apparatus for controlling location of boring by rock drill
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JP2019120100A (en) * 2018-01-11 2019-07-22 株式会社奥村組 Drilling machine
JP2021167572A (en) * 2018-01-11 2021-10-21 株式会社奥村組 Drilling machine
JP2022051878A (en) * 2018-01-11 2022-04-01 株式会社奥村組 Drill machine
JP7084679B2 (en) 2018-01-11 2022-06-15 株式会社奥村組 Drilling machine
JP7133269B2 (en) 2018-01-11 2022-09-08 株式会社奥村組 drilling machine
JP7256594B2 (en) 2018-01-11 2023-04-12 株式会社奥村組 drilling machine

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