JPH0791181A - Excavating machine - Google Patents

Excavating machine

Info

Publication number
JPH0791181A
JPH0791181A JP23445393A JP23445393A JPH0791181A JP H0791181 A JPH0791181 A JP H0791181A JP 23445393 A JP23445393 A JP 23445393A JP 23445393 A JP23445393 A JP 23445393A JP H0791181 A JPH0791181 A JP H0791181A
Authority
JP
Japan
Prior art keywords
cutter
rock
rotary shaft
wave
excavator
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.)
Withdrawn
Application number
JP23445393A
Other languages
Japanese (ja)
Inventor
Sei Matsunaga
聖 松永
Kiwamu Arikawa
究 有川
Osamu Kawabata
理 川畑
Hisashi Murakawa
寿 村川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP23445393A priority Critical patent/JPH0791181A/en
Publication of JPH0791181A publication Critical patent/JPH0791181A/en
Withdrawn legal-status Critical Current

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  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

PURPOSE:To excavate easily a hard rock layer to be excavated. CONSTITUTION:In a rock excavation machine which excavates a cutting face 102 of a rock 101 by rotating a cutter head 2 equipped with cutter frames 2a and 2b and a cutter bit 3 with a rotary shaft 1, a wave feed pipe 1a is installed which is coaxial with the rotary shaft 1 where a waveguide passage 2c communicated with the wave transmitting pipe 1a is formed inside the cutter frame 2b. A plurality of outlets 2b communicated with the waveguide pass 2c are formed on the front side of the cutter frame 2b. A microwave oscillation device is connected to a base end of the wave feed pipe 1a, thereby oscillating microwaves 10 at the cutting face 102.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、掘削機に関し、特に、
トンネルなどを構築する際に使用する岩盤掘削機に適用
すると有効なものであり、コンクリートなどの構造物の
解体などにも応用することができるものである。
FIELD OF THE INVENTION The present invention relates to excavators, and in particular,
It is effective when applied to a rock excavator used when constructing a tunnel or the like, and can also be applied to dismantling of a structure such as concrete.

【0002】[0002]

【従来の技術】地下鉄や道路などの建設でトンネルを構
築する場合には、地中や山などを掘削する岩盤掘削機が
用いられている。
2. Description of the Related Art When a tunnel is constructed by constructing a subway or a road, a rock excavator for excavating the underground or mountains is used.

【0003】従来の岩盤掘削機を図4,5に基づいて説
明する。回転軸21の先端側には、カッタビット23を
前面に複数配設した十字状をなすカッタヘッド22が取
り付けられている。この回転軸21を回転してカッタヘ
ッド22を回転させると共に、回転軸21を介してカッ
タヘッド22を岩盤101の切羽102に押し付けるこ
とにより、カッタビット23で切羽102を掘削し、発
生したズリ103をスクリュコンベア11で搬出する。
A conventional rock excavator will be described with reference to FIGS. A cross-shaped cutter head 22 having a plurality of cutter bits 23 arranged on the front surface is attached to the tip end side of the rotary shaft 21. By rotating the rotary shaft 21 to rotate the cutter head 22 and pressing the cutter head 22 against the face 102 of the bedrock 101 via the rotary shaft 21, the face 102 is excavated by the cutter bit 23, and the gap 103 generated. Are carried out by the screw conveyor 11.

【0004】[0004]

【発明が解決しようとする課題】前述した従来の岩盤掘
削機では、硬い岩盤を掘削すると、カッタビット23が
激しく摩耗してしまうので、カッタビット23を頻繁に
交換しなければならず、施工効率が非常に悪くなってし
まう。また、硬い岩盤を掘削する場合には、回転軸21
の回転力や押し付け力などの掘削反力を増大させなけれ
ばならないので、岩盤掘削機が非常に重くなってしま
い、制御性が非常に悪くなり、自動運転や無人運転など
が困難になってしまう。さらに、掘削反力が大きくなる
と、岩盤101への振動なども大きくなり、施工時の安
全性に問題が生じるだけでなく、周辺地域に振動などの
被害を与えてしまう。
In the above-mentioned conventional rock excavator, when the hard rock is excavated, the cutter bit 23 is worn out so much that the cutter bit 23 must be replaced frequently and the construction efficiency is high. Becomes very bad. When excavating hard rock, the rotary shaft 21
Since it is necessary to increase the excavation reaction force such as the rotating force and the pressing force of the rock excavator, the rock excavator becomes very heavy, the controllability becomes very poor, and automatic operation and unmanned operation become difficult. . Further, if the excavation reaction force becomes large, the vibration to the bedrock 101 also becomes large, which not only causes a problem in safety at the time of construction but also damages the surrounding area such as vibration.

【0005】[0005]

【課題を解決するための手段】前述した課題を解決する
ため、本発明による掘削機では、被掘削部へ向けて波動
を発振する波動発振手段を備えたのである。
In order to solve the above-mentioned problems, the excavator according to the present invention is provided with wave oscillating means for oscillating waves toward the excavated portion.

【0006】[0006]

【作用】前述した構成による掘削機では、波動発振手段
で被掘削部へ向けて発振した波動により、被掘削部は脆
弱化する。
In the excavator having the above-mentioned structure, the excavated portion is weakened by the wave oscillated by the wave oscillating means toward the excavated portion.

【0007】[0007]

【実施例】本発明による掘削機をトンネルの構築時など
に使用する岩盤掘削機に適用した場合の一実施例を図1
〜3に基づいて説明する。なお、図1は、その主要部の
正面図、図2は、図1のII−II線矢視断面図、図3は、
図1のIII-III 線矢視断面図である。
EXAMPLE An example in which the excavator according to the present invention is applied to a rock excavator used when constructing a tunnel or the like is shown in FIG.
3 to 3. 1 is a front view of the main part, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG.
FIG. 3 is a sectional view taken along the line III-III of FIG. 1.

【0008】これらの図に示すように、図示しない駆動
装置で回転する回転軸1の先端側には、カッタヘッド2
の本体をなすヘッドフレーム2a,2bが回転軸1の軸
心を中心に十字をなすよう放射状に設けられている。ヘ
ッドフレーム2aの前面側には、被掘削体を掘削するカ
ッタであるカッタビット3がヘッドフレーム2aの幅方
向両側に長手方向に沿って複数設けられている。
As shown in these figures, a cutter head 2 is provided on the tip side of a rotary shaft 1 which is rotated by a driving device (not shown).
The head frames 2a and 2b forming the main body are radially provided so as to form a cross about the axis of the rotary shaft 1. A plurality of cutter bits 3, which are cutters for excavating a body to be excavated, are provided on both sides in the width direction of the head frame 2a along the longitudinal direction on the front side of the head frame 2a.

【0009】前記回転軸1の内部には、波動を送る送波
管1aが回転軸1と同軸をなして設けられている。ヘッ
ドフレーム2bの内部には送波管1aに連通する導波路
2cがヘッドフレーム2bの長手方向に沿って形成され
ている。ヘッドフレーム2bの前面側には、導波路2c
に連通する送出口2dがヘッドフレーム2bの長手方向
に沿って複数形成されている。送波管1aの基端側に
は、マイクロ波10を発振する図示しないマイクロ波発
振装置が連結されている。本実施例では、このようにマ
イクロ波発振装置、送波管1a、導波路2c、送出口2
dなどにより波動発振手段を構成している。
Inside the rotary shaft 1, a wave transmission pipe 1a for transmitting a wave is provided coaxially with the rotary shaft 1. Inside the head frame 2b, a waveguide 2c communicating with the wave transmission tube 1a is formed along the longitudinal direction of the head frame 2b. The waveguide 2c is provided on the front side of the head frame 2b.
A plurality of outlets 2d communicating with the head frame 2b are formed along the longitudinal direction of the head frame 2b. A microwave oscillating device (not shown) that oscillates the microwave 10 is connected to the base end side of the wave transmission tube 1a. In this embodiment, the microwave oscillating device, the wave transmission tube 1a, the waveguide 2c, and the transmission port 2 are thus configured.
The wave oscillating means is constituted by d and the like.

【0010】なお、図中、101は岩盤、102は切
羽、103はズリ、11はズリを搬送するスクリュコン
ベアである。
In the figure, 101 is a bedrock, 102 is a face, 103 is a scrap, and 11 is a screw conveyor for carrying the scrap.

【0011】このような岩盤掘削機を用いるには、下記
のようにすれば良い。カッタヘッド2を岩盤101の切
羽102に押し付け、駆動装置で回転軸1を回転させ、
マイクロ波発振装置により、送波管1a、導波路2cを
経由して送出口2dから切羽102へ向けてマイクロ波
10を発振する。
In order to use such a rock excavator, the following may be done. The cutter head 2 is pressed against the face 102 of the bedrock 101, and the rotary shaft 1 is rotated by the drive device.
The microwave oscillating device oscillates the microwave 10 from the outlet 2d toward the face 102 via the wave transmission tube 1a and the waveguide 2c.

【0012】切羽102は、マイクロ波10により脆弱
化し、カッタビット3により容易に掘削される。掘削に
より発生したズリ103は、スクリュコンベア11で岩
盤掘削機の後方から坑外へ搬送される。
The cutting face 102 is weakened by the microwave 10 and is easily excavated by the cutter bit 3. The scrap 103 generated by the excavation is conveyed outside the rock excavator by the screw conveyor 11 from the rear of the rock excavator.

【0013】従って、回転軸1を回転させる回転力やカ
ッタヘッド2を切羽102に押し付ける押圧力などの掘
削反力が大幅に低下するのである。
Therefore, the excavation reaction force such as the rotational force for rotating the rotary shaft 1 and the pressing force for pressing the cutter head 2 against the face 102 is significantly reduced.

【0014】前述した掘削時に使用されるマイクロ波の
周波数は、現時点では下記の理由から2.45GHz が適当
であると考えられる。 工業的利用が認められている。 大出力の発振装置の開発が進んでいる。 水に対する吸収特性に優れているため、岩盤中の水分
の気化膨脹による岩盤の脆弱効果も得られる。 なお、岩盤中の水分が少ない場合には、浅い領域をより
高温に加熱が可能である高周波数のマイクロ波を使用す
れば、岩石の結晶膨脹による岩盤の脆弱効果を得ること
ができる。
At the present time, it is considered that 2.45 GHz is suitable as the frequency of the microwave used during the excavation for the following reason. Allowed for industrial use. Development of high-power oscillators is in progress. Due to its excellent water absorption properties, the rock's fragile effect due to the vaporization and expansion of water in the rock can be obtained. When the water content in the bedrock is low, the fragile effect of the bedrock due to the crystal expansion of the rock can be obtained by using a high-frequency microwave capable of heating the shallow region to a higher temperature.

【0015】なお、本実施例では、回転するカッタを用
いた岩盤掘削機に適用したが、ドリル、ハンマ、ショベ
ルなどを用いる掘削機にも適用可能である。
Although the present embodiment is applied to a rock excavator using a rotating cutter, it is also applicable to an excavator using a drill, hammer, shovel or the like.

【0016】[0016]

【発明の効果】前述したように、本発明による掘削機で
は、波動発振手段で被掘削部へ向けて発振した波動によ
り、被掘削部を脆弱化させるので、本発明による掘削機
を岩盤掘削機に適用すると、硬い岩盤を掘削する場合で
も、カッタの摩耗が著しく減少し、カッタの交換頻度が
減少し、施工効率が大幅に向上する。また、掘削反力が
小さくて良いので、岩盤掘削機が軽量化し、制御性が向
上し、自動運転や無人運転などが実施しやすくなる。さ
らに、岩盤への振動なども減少し、施工時の安全性が向
上すると共に、周辺地域に与える振動などの被害も大幅
に減少する。
As described above, in the excavator according to the present invention, the excavator according to the present invention is weakened by the wave oscillated by the wave oscillating means toward the excavated part. When applied to, even when excavating a hard rock, the wear of the cutter is significantly reduced, the frequency of exchanging the cutter is reduced, and the construction efficiency is significantly improved. Further, since the excavation reaction force is small, the rock excavator becomes light in weight, the controllability is improved, and automatic operation and unmanned operation are facilitated. Furthermore, vibrations to the bedrock will be reduced, which will improve the safety during construction, and will also significantly reduce the damage caused by vibrations to the surrounding area.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明による掘削機を岩盤掘削機に適用した場
合の一実施例の正面図である。
FIG. 1 is a front view of an example in which the excavator according to the present invention is applied to a rock excavator.

【図2】図1のII−II線矢視断面図である。FIG. 2 is a sectional view taken along the line II-II of FIG.

【図3】図1のIII-III 線矢視断面図である。FIG. 3 is a sectional view taken along the line III-III in FIG.

【図4】従来の岩盤掘削機の正面図である。FIG. 4 is a front view of a conventional rock excavator.

【図5】その側面図である。FIG. 5 is a side view thereof.

【符号の説明】[Explanation of symbols]

1 回転軸 1a 送波管 2 カッタヘッド 2a ヘッドフレーム 2b ヘッドフレーム 2c 導波路 2d 送出口 3 カッタビット 10 マイクロ波 11 スクリュコンベア 101 岩盤 102 切羽 103 ズリ DESCRIPTION OF SYMBOLS 1 rotating shaft 1a wave pipe 2 cutter head 2a head frame 2b head frame 2c waveguide 2d outlet 3 cutter bit 10 microwave 11 screw conveyor 101 bedrock 102 face 103

───────────────────────────────────────────────────── フロントページの続き (72)発明者 村川 寿 兵庫県高砂市荒井町新浜二丁目8番25号 高菱エンジニアリング株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hisashi Murakawa 2-8-25, Niihama, Arai-cho, Takasago, Hyogo Prefecture Takahishi Engineering Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 被掘削部へ向けて波動を発振する波動発
振手段を備えたことを特徴とする掘削機。
1. An excavator comprising wave oscillating means for oscillating a wave toward an excavated portion.
JP23445393A 1993-09-21 1993-09-21 Excavating machine Withdrawn JPH0791181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23445393A JPH0791181A (en) 1993-09-21 1993-09-21 Excavating machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23445393A JPH0791181A (en) 1993-09-21 1993-09-21 Excavating machine

Publications (1)

Publication Number Publication Date
JPH0791181A true JPH0791181A (en) 1995-04-04

Family

ID=16971241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23445393A Withdrawn JPH0791181A (en) 1993-09-21 1993-09-21 Excavating machine

Country Status (1)

Country Link
JP (1) JPH0791181A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106979016A (en) * 2017-05-26 2017-07-25 东北大学 A kind of microwave presplitting formula hard rock tunnel development machine cutterhead
CN108060927A (en) * 2017-12-10 2018-05-22 北京工业大学 Microwave mixes broken rock device with Water Cutting in a kind of tunnelling
CN111101960A (en) * 2019-12-17 2020-05-05 中国铁建重工集团股份有限公司 Hard rock tunnel boring machine and cutter head thereof
CN112196550A (en) * 2020-03-04 2021-01-08 中铁工程装备集团有限公司 Hob-free hard rock tunneling machine for breaking rock by utilizing microwave and supercritical carbon dioxide

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106979016A (en) * 2017-05-26 2017-07-25 东北大学 A kind of microwave presplitting formula hard rock tunnel development machine cutterhead
CN108060927A (en) * 2017-12-10 2018-05-22 北京工业大学 Microwave mixes broken rock device with Water Cutting in a kind of tunnelling
CN111101960A (en) * 2019-12-17 2020-05-05 中国铁建重工集团股份有限公司 Hard rock tunnel boring machine and cutter head thereof
CN112196550A (en) * 2020-03-04 2021-01-08 中铁工程装备集团有限公司 Hob-free hard rock tunneling machine for breaking rock by utilizing microwave and supercritical carbon dioxide

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Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20001128