JPH08121100A - Movable soundproof door device - Google Patents

Movable soundproof door device

Info

Publication number
JPH08121100A
JPH08121100A JP25994994A JP25994994A JPH08121100A JP H08121100 A JPH08121100 A JP H08121100A JP 25994994 A JP25994994 A JP 25994994A JP 25994994 A JP25994994 A JP 25994994A JP H08121100 A JPH08121100 A JP H08121100A
Authority
JP
Japan
Prior art keywords
soundproof door
soundproof
tunnel
blasting
exhauster
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
Application number
JP25994994A
Other languages
Japanese (ja)
Other versions
JP2828198B2 (en
Inventor
Minoru Shimozaka
実 下坂
Masatoshi Omori
昌寿 大森
Kohei Mio
興平 三尾
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.)
Kajima Corp
Original Assignee
Kajima Corp
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 Kajima Corp filed Critical Kajima Corp
Priority to JP25994994A priority Critical patent/JP2828198B2/en
Publication of JPH08121100A publication Critical patent/JPH08121100A/en
Application granted granted Critical
Publication of JP2828198B2 publication Critical patent/JP2828198B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

PURPOSE: To reduce blasting noise and enhance ventilation efficiency by installing a soundproof door to a mobile truck upright and connecting a fan opening and an exhauster opening, to a fan and an exhauster mounted on the truck respectively. CONSTITUTION: A soundproof door 10 of a movable door device is laid out near a cutting face in a tunnel where an air duct connected to a fan 6 is extended to the cutting face side while an exhaust duct connected to an exhauster 7 is extended to outside a pit. In this case, a known stationary soundproof door is installed to a site near the pit. Then, the soundproof door 10 reduces a blasting noise power near a blasting noise source when executing blasting excavation, thereby providing a distance attenuation effect in the tunnel. In addition to that, the soundproof door near the pit enhances a soundproof efficiency more satisfactorily and the soundproof door 10 shuts out the contaminated air from a fresh air where the great part of the contaminated air is produced around a cutting face blasting excavation work area. Furthermore, the exhauster 7 exhausts dense contaminated air while the fan 6 feeds fresh air to the work area, thereby enhancing ventilation efficiency.

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、トンネル工事に用いら
れる移動式防音扉装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable soundproof door device used for tunnel construction.

【０００２】[0002]

【従来の技術】発破掘削によるトンネル工事において
は、坑口近くに人家がある場合、坑口から放射される発
破騒音が問題になる。ＮＡＴＭ工法では、トンネル内で
の発破騒音の距離減衰が小さく、坑口においても発破音
源と略同じ騒音が観測される。そして、坑口から放射さ
れる発破騒音は、ある程度以上のパワーがあると、近隣
住民に心理的、生理的に大きい影響を及ぼすおそれがあ
る。2. Description of the Related Art In tunnel construction by blast excavation, when there is a house near the pit, blast noise emitted from the pit becomes a problem. According to the NATM method, the blasting noise within the tunnel is less attenuated by distance, and the same noise as that of the blasting sound source is observed at the wellhead. If the blast noise emitted from the wellhead has a certain level of power, it may have a large psychological and physiological effect on the neighboring residents.

【０００３】また、トンネル作業員は、大きい発破騒音
に常に暴露され、難聴の原因となっている。Also, tunnel workers are constantly exposed to loud blasting noise, which causes hearing loss.

【０００４】更に、発破掘削によるトンネル工事におけ
る換気は、送気方式と排気方式とがある。送気方式で
は、汚染空気を拡散しトンネル全体が汚染空気で充満さ
れている。また、排気方式では、発破によるガス、粉塵
及び機械の排気ガス等の汚染空気の濃い状態で排気して
いるが、排風機付近で新鮮な空気と汚染した空気とが入
り混り、換気効率の低下を招いている。Further, ventilation in tunnel construction by blast excavation includes an air supply system and an exhaust system. In the air supply method, polluted air is diffused and the entire tunnel is filled with polluted air. In addition, in the exhaust method, exhaust is performed in a state where the contaminated air such as blasting gas, dust and exhaust gas of the machine is rich, but fresh air and contaminated air are mixed in the vicinity of the exhaust fan, and ventilation efficiency increases. Causing a decline.

【０００５】[0005]

【発明が解決しようとする課題】本発明は、発破騒音を
低減すると共に、換気効率を向上する移動式防音扉装置
を提供することを目的としている。SUMMARY OF THE INVENTION It is an object of the present invention to provide a movable soundproof door device which reduces blasting noise and improves ventilation efficiency.

【０００６】[0006]

【課題を解決するための手段】本発明によれば、自走台
車に防音扉を垂直に設け、該防音扉に形成した送風機用
開口部及び排風機開口部を、前記自走台車に搭載した送
風機及び排風機にそれぞれ接続している。According to the present invention, a soundproof door is provided vertically on a self-propelled carriage, and a blower opening and an exhaust fan opening formed in the soundproof door are mounted on the self-propelled carriage. It is connected to the blower and exhaust fan respectively.

【０００７】更に、本発明によれば、防音壁にトンネル
周壁より小さい外形の枠組部及び鋼板部と、該枠組部及
び鋼板部の間に挟持した防音材と、前記枠組部の外縁部
に設けられトンネル周壁との間をシールするゴム板とを
設けている。Further, according to the present invention, the soundproof wall is provided with a frame portion and a steel plate portion having an outer shape smaller than the tunnel peripheral wall, a soundproof material sandwiched between the frame portion and the steel plate portion, and an outer edge portion of the frame portion. And a rubber plate that seals between the peripheral wall of the tunnel and the peripheral wall of the tunnel.

【０００８】また、本発明によれば、発破掘削に際し、
切羽の付近に移動式防音扉装置の防音扉を位置させ、坑
口付近に１基の固定式の防音扉を間隔を設けて設置す
る。Further, according to the present invention, during blast excavation,
The soundproof door of the mobile soundproof door device is located near the face, and one fixed soundproof door is installed near the wellhead with a space.

【０００９】[0009]

【作用】上記のように構成された移動式防音扉装置にお
いては、移動式防音扉装置の防音扉により発破音源の近
くで発破騒音パワーを減衰させ、トンネル内での距離減
衰効果が得られ、また、坑口付近の固定式の防音扉で防
音効果が高められる。In the movable soundproof door apparatus configured as described above, the soundproof door of the movable soundproof door apparatus attenuates the blasting noise power near the blasting sound source to obtain the distance damping effect in the tunnel. In addition, the soundproof effect is enhanced by the fixed soundproof door near the wellhead.

【００１０】また、移動式防音扉装置の防音扉により、
汚染空気の大半が発生する発破掘削作業区域の付近で、
汚染空気と新鮮な空気とを遮断して濃度の濃い汚染空気
を排気し、新鮮な空気をトンネル先端の作業区域に送り
換気効率を向上することができる。In addition, the soundproof door of the movable soundproof door device,
Near the blasting and excavation work area where most of the contaminated air is generated,
The polluted air and the fresh air can be cut off to exhaust the concentrated polluted air, and the fresh air can be sent to the work area at the tip of the tunnel to improve the ventilation efficiency.

【００１１】[0011]

【実施例】以下図面を参照して本発明の実施例を説明す
る。Embodiments of the present invention will be described below with reference to the drawings.

【００１２】図１ないし図５において、防音扉装置は、
全体を符号１で示す自走台車と、その自走台車１の切羽
側すなわち前側に立設された防音扉１０と、自走台車１
に搭載された送風機６及び排風機７とから概略構成され
ている。1 to 5, the soundproof door device is
A self-propelled carriage indicated by reference numeral 1 as a whole, a soundproof door 10 erected on the face of the self-propelled carriage 1, that is, on the front side, and the self-propelled carriage 1
The air blower 6 and the exhaust fan 7 mounted on the vehicle are generally configured.

【００１３】前記自走台車１には、クロスアーム２ａ、
２ｂと図示しない油圧シリンダにより間隔Ｄが拡縮自在
で、トンネル施工に対して間隔Ｄが固定される一対のフ
レーム３ａ、３ｂと、それぞれのフレーム３ａ、３ｂに
設けられたキャタピラ４ａ、４ｂとが設けられている。
また、両フレーム３ａ、３ｂの上部を連結する上部架台
５が設けられ、その上部架台５には、中心より右よりに
送風機６が設けられ、左側のフレーム３ａの左側部に
は、排風機７が設けられている。The self-propelled carriage 1 includes a cross arm 2a,
2b and a pair of frames 3a and 3b whose distance D can be expanded and contracted by a hydraulic cylinder (not shown) and which is fixed for tunnel construction, and caterpillars 4a and 4b provided on the respective frames 3a and 3b. Has been.
Further, an upper frame 5 for connecting the upper portions of both the frames 3a and 3b is provided, a blower 6 is provided on the upper frame 5 from the right side of the center, and an air blower 7 is provided on the left side of the left frame 3a. Is provided.

【００１４】前記フレーム３ａ、３ｂ及び上部架台５の
前端部には、全体を符号１０で示す防音扉が垂直に設け
られている。この防音扉１０には、トンネルＴの周壁Ｗ
より若干（例えば５００ｍｍ）小さい外形の前側の枠組
部１１と後側の鋼板部１２との間に、防音材である例え
ば図示しないパンチングメタル層とグラスウール層とが
挟持されている。そして、枠組部１１の周縁部には、ト
ンネルの周壁Ｗとの間をシールするゴム板１３が設けら
れている。また、防音扉１０には、送風機用開口部１４
と排風機用開口部１５とが形成されている。その送風機
用開口部１４には、送風機６の出口が接続され、排風機
用開口部１５は、ダクト７ａにより排風機７の入口に接
続されている。なお、図１の符号８は操作盤、９は上部
架台用ステップである。At the front ends of the frames 3a and 3b and the upper frame 5, a soundproof door generally designated by the numeral 10 is vertically provided. The soundproof door 10 has a peripheral wall W of the tunnel T.
A soundproof material, for example, a punching metal layer and a glass wool layer, which are not shown, are sandwiched between the front frame portion 11 and the rear steel sheet portion 12 which are slightly smaller (for example, 500 mm) in outer shape. A rubber plate 13 that seals between the peripheral wall W of the tunnel and the peripheral wall W of the tunnel is provided on the peripheral edge of the framework 11. In addition, the soundproof door 10 has an opening 14 for the blower.
And an exhaust fan opening 15 are formed. The blower opening 14 is connected to the outlet of the blower 6, and the blower opening 15 is connected to the inlet of the blower 7 by a duct 7a. Reference numeral 8 in FIG. 1 is an operation panel, and 9 is a step for the upper mount.

【００１５】次に、図６を参照して作用を説明する。Next, the operation will be described with reference to FIG.

【００１６】トンネルＴ内には、切羽Ａの付近、例えば
距離Ｌ（例えば７０〜１５０ｍ）の所に移動扉装置の防
音扉１０を位置させ、送風機６に接続した送気ダクト６
Ａを切羽Ａ側に延ばし、排風機７に接続した排気ダクト
７Ａを坑口Ｂの外へ延ばしておく。Inside the tunnel T, a soundproof door 10 of a moving door device is located near the face A, for example, at a distance L (for example, 70 to 150 m), and an air supply duct 6 connected to a blower 6 is provided.
A is extended to the face A side, and the exhaust duct 7A connected to the blower 7 is extended to the outside of the wellhead B.

【００１７】また、坑口Ｂより近い箇所には、距離Ｌ１
（例えぱ５〜４０ｍ）をおいて１基の公知技術による固
定式の防音扉２０を設置する。Further, at a position closer to the wellhead B, a distance L1
A fixed type soundproof door 20 according to a known technique is installed at an interval (for example, 5 to 40 m).

【００１８】発破掘削において、防音扉１０により発破
音源の近くで発破騒音パワーを低減させることにより、
トンネルＴ内での距離減衰効果を得ることができる。ま
た、坑口Ｂの近くの防音扉２０により、更に防音効果を
高めることができる。In the blast excavation, by reducing the blast noise power near the blast sound source by the soundproof door 10,
A distance damping effect in the tunnel T can be obtained. Further, the soundproof door 20 near the wellhead B can further enhance the soundproof effect.

【００１９】また、防音扉１０により汚染空気の大半が
発生する切羽Ａの発破掘削作業区域の付近で、防音扉１
０により汚染空気と新鮮な空気とを遮断し、排風機７で
濃度の濃い汚染空気を排気し、送風機６で新鮮な空気を
トンネルＴの先端の作業区域に送り、換気効率を向上す
ることができる。Further, the soundproof door 1 is provided near the blasting and excavating work area of the face A where most of the contaminated air is generated by the soundproof door 10.
It is possible to improve the ventilation efficiency by cutting off the contaminated air and the fresh air by 0, exhausting the contaminated air having a high concentration by the exhaust fan 7, and sending the fresh air to the work area at the tip of the tunnel T by the blower 6. it can.

【００２０】[0020]

【発明の効果】本発明は、以上説明したように構成され
ているので、発破騒音を低減すると共に、換気効率を向
上することができる。Since the present invention is configured as described above, it is possible to reduce blast noise and improve ventilation efficiency.

【００２１】その結果、坑口の近隣住民に与える心理
的、生理的影響を非常に小さくすることができる。As a result, the psychological and physiological influences on the residents near the wellhead can be made very small.

【００２２】また、トンネル内作業の環境を改善し、難
聴を防止すると共に、心理的、生理的影響を極めて小さ
くすることができる。Further, it is possible to improve the working environment in the tunnel, prevent hearing loss, and minimize psychological and physiological effects.

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

【図１】本発明の一実施例を示す側面図。FIG. 1 is a side view showing an embodiment of the present invention.

【図２】図１の前面図。FIG. 2 is a front view of FIG.

【図３】図１の後面図。FIG. 3 is a rear view of FIG.

【図４】図１のＡ−Ａ線矢視図。FIG. 4 is a view taken along the line AA of FIG.

【図５】図１のＢ−Ｂ線矢視図。5 is a view taken along the line BB of FIG.

【図６】トンネル内における防音扉の配置を示す平面
図。FIG. 6 is a plan view showing an arrangement of soundproof doors in a tunnel.

【符号の説明】[Explanation of symbols]

Ａ・・・切羽 Ｂ・・・坑口 Ｔ・・・トンネル Ｗ・・・周壁 １・・・自走台車 ２ａ、２ｂ・・・クロスアーム ３ａ、３ｂ・・・フレーム ４ａ、４ｂ・・・キャタピラ ５・・・上部架台 ６・・・送風機 ６Ａ・・・送気ダクト ７・・・排風機 ７Ａ・・・排気ダクト ７ａ・・・ダクト ８・・・操作盤 ９・・・上部架台用ステップ １０・・・防音扉 １１・・・枠組部 １２・・・鋼板部 １３・・・ゴム板 １４・・・送風機用開口部 １５・・・排風機用開口部 ２０・・・固定式の防音扉 A ... Cutting face B ... Wellhead T ... Tunnel W ... Peripheral wall 1 ... Self-propelled carriage 2a, 2b ... Cross arm 3a, 3b ... Frame 4a, 4b ... Caterpillar 5・ ・ ・ Upper mount 6 ・ ・ ・ Blower 6A ・ ・ ・ Air supply duct 7 ・ ・ ・ Exhaust fan 7A ・ ・ ・ Exhaust duct 7a ・ ・ ・ Duct 8 ・ ・ ・ Operation panel 9 ・ ・ ・ Steps for upper mount 10 ・..Soundproof door 11 ... Frame part 12 ... Steel plate part 13 ... Rubber plate 14 ... Blower opening 15 ... Blower opening 20 ... Fixed soundproof door

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 自走台車に防音扉を垂直に設け、該防音
扉に形成した送風機用開口部及び排風機開口部を、前記
自走台車に搭載した送風機及び排風機にそれぞれ接続し
たことを特徴とする移動式防音扉装置。1. A self-propelled carriage is provided with a soundproof door vertically, and a blower opening and an exhaust fan opening formed in the soundproof door are connected to a blower and an exhaust fan mounted on the self-propelled carriage, respectively. Characteristic mobile soundproof door device. 【請求項２】 防音壁にトンネル周壁より小さい外形の
枠組部及び鋼板部と、該枠組部及び鋼板部の間に挟持し
た防音材と、前記枠組部の外縁部に設けられトンネル周
壁との間をシールするゴム板とを設けたことを特徴とす
る移動式防音扉装置。2. A soundproof wall between a frame portion and a steel plate portion having an outer shape smaller than a tunnel peripheral wall, a soundproof material sandwiched between the frame portion and the steel plate portion, and a tunnel peripheral wall provided at an outer edge portion of the frame portion. A movable soundproof door device, characterized in that it is provided with a rubber plate for sealing. 【請求項３】 発破掘削に際し、切羽の付近に移動式防
音扉装置の防音扉を位置させ、坑口付近に１基の固定式
の防音扉を間隔を設けて設置することを特徴とする移動
式防音扉装置。3. A movable type soundproof door of a movable type soundproof door device is located near a face when blasting and excavating, and one fixed type soundproof door is installed near a wellhead with an interval. Soundproof door device.
JP25994994A 1994-10-25 1994-10-25 Mobile soundproof door system Expired - Fee Related JP2828198B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25994994A JP2828198B2 (en) 1994-10-25 1994-10-25 Mobile soundproof door system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25994994A JP2828198B2 (en) 1994-10-25 1994-10-25 Mobile soundproof door system

Publications (2)

Publication Number Publication Date
JPH08121100A true JPH08121100A (en) 1996-05-14
JP2828198B2 JP2828198B2 (en) 1998-11-25

Family

ID=17341164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25994994A Expired - Fee Related JP2828198B2 (en) 1994-10-25 1994-10-25 Mobile soundproof door system

Country Status (1)

Country Link
JP (1) JP2828198B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001009484A2 (en) * 1999-08-02 2001-02-08 Rosenbauer International Aktiengesellschaft Device and methods for combating accidents in a tunnel
JP2002276300A (en) * 2001-03-19 2002-09-25 Nishimatsu Constr Co Ltd Dust discharging device and sound insulating method and dust discharging method using the same
JP2004204539A (en) * 2002-12-25 2004-07-22 Penta Ocean Constr Co Ltd Soundproof and dustproof method in tunnel work and facility truck
CN111336876A (en) * 2020-03-31 2020-06-26 山东科技大学 Method for reducing damage of tunnel blasting shock waves and noise

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001009484A2 (en) * 1999-08-02 2001-02-08 Rosenbauer International Aktiengesellschaft Device and methods for combating accidents in a tunnel
WO2001009484A3 (en) * 1999-08-02 2001-08-16 Rosenbauer Int Ag Device and methods for combating accidents in a tunnel
JP2002276300A (en) * 2001-03-19 2002-09-25 Nishimatsu Constr Co Ltd Dust discharging device and sound insulating method and dust discharging method using the same
JP4641641B2 (en) * 2001-03-19 2011-03-02 西松建設株式会社 Dust discharging device and dust discharging method
JP2004204539A (en) * 2002-12-25 2004-07-22 Penta Ocean Constr Co Ltd Soundproof and dustproof method in tunnel work and facility truck
CN111336876A (en) * 2020-03-31 2020-06-26 山东科技大学 Method for reducing damage of tunnel blasting shock waves and noise
CN111336876B (en) * 2020-03-31 2023-09-01 山东科技大学 Method for reducing damage of tunnel blasting shock wave and noise

Also Published As

Publication number Publication date
JP2828198B2 (en) 1998-11-25

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