JPH07158385A - Face ventilation equipment for shield work - Google Patents
Face ventilation equipment for shield workInfo
- Publication number
- JPH07158385A JPH07158385A JP30799993A JP30799993A JPH07158385A JP H07158385 A JPH07158385 A JP H07158385A JP 30799993 A JP30799993 A JP 30799993A JP 30799993 A JP30799993 A JP 30799993A JP H07158385 A JPH07158385 A JP H07158385A
- Authority
- JP
- Japan
- Prior art keywords
- blower
- face
- shield machine
- shield
- exhaust duct
- 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
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
(57)【要約】
【目的】 シールド機内あるいは切羽付近に滞留する可
燃性ガスや有毒ガスを効率的に排出して、作業環境の改
善を積極的に図ることができる。
【構成】 シールド機１内に吸入管10を設け、後方台車
の後尾にブロアー台車17を設置し、竪坑を通して設置す
る地上への排気ダクトをこのブロアー台車17のブロアー
の吐出側に接続し、前記吸入管10を風管12を介して前記
ブロアーの吸入側に接続した。
(57) [Summary] [Purpose] The work environment can be positively improved by efficiently discharging the flammable gas and toxic gas accumulated in the shield machine or near the face. [Structure] The suction pipe 10 is provided in the shield machine 1, the blower carriage 17 is installed at the tail of the rear carriage, and the exhaust duct to the ground installed through the vertical shaft is connected to the blower discharge side of the blower carriage 17, The suction pipe 10 was connected to the suction side of the blower via a wind pipe 12.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、シールド工事の切羽の
換気設備に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a face ventilation system for shield work.
【０００２】[0002]
【従来の技術】シールドトンネルにおける換気設備とし
ては、従来、主として地上の空気を切羽付近に送り込む
ようにしたものがほとんどである。2. Description of the Related Art Conventionally, most ventilation facilities in shield tunnels have been designed so that air on the ground is mainly sent near the face.
【０００３】これを行うためには、地上部に換気扇を設
置し、この換気扇から竪坑を通してダクトをトンネル内
に引込み、ダクト先端の吐き出し口を切羽後方に設置す
る。In order to do this, a ventilation fan is installed above the ground, the duct is drawn into the tunnel from the ventilation fan through the vertical shaft, and the outlet at the tip of the duct is installed behind the face.
【０００４】[0004]
【発明が解決しようとする課題】このような従来の換気
設備では、切羽後方に吐き出し口を設置するものである
ため、先端の切羽までは充分に地上の空気を送込むこと
ができないおそれもある。また、シールド機が掘進する
に従い、前記吐き出し口がさらに後方へ置いて行かれる
ことになり、シールド機内、切羽付近には汚れた空気、
有毒ガス等が滞留する。In such a conventional ventilation facility, since the discharge port is installed behind the face, there is a possibility that the air on the ground cannot be sufficiently sent to the face of the tip. . Also, as the shield machine advances, the discharge port will be placed further rearward, and inside the shield machine, dirty air near the face,
Toxic gas etc. accumulates.
【０００５】本発明の目的は前記従来例の不都合を解消
し、シールド機内あるいは切羽付近に滞留する可燃性ガ
スや有毒ガスを効率的に排出できるシールド工事の切羽
の換気設備を提供することにある。An object of the present invention is to eliminate the disadvantages of the conventional example and to provide a face ventilation system for shield construction capable of efficiently discharging the flammable gas and the toxic gas accumulated in the shield machine or near the face. .
【０００６】[0006]
【課題を解決するための手段】本発明は前記目的を達成
するため、シールド機内に吸入管を設け、後方台車の後
尾にブロアーを設置し、竪坑を通して設置する地上への
排気ダクトをこのブロアーの吐出側に接続し、前記吸入
管を風管を介して前記ブロアーの吸入側に接続したこ
と、および、ブロアーの吐出側と排気ダクト間には伸縮
管を設けることを要旨とするものである。In order to achieve the above-mentioned object, the present invention provides a suction pipe in a shield machine, installs a blower at the rear end of a rear bogie, and installs an exhaust duct to the ground installed through a vertical shaft of this blower. The gist of the invention is to connect to the discharge side and to connect the suction pipe to the suction side of the blower via a wind pipe, and to provide a telescopic tube between the discharge side of the blower and the exhaust duct.
【０００７】[0007]
【作用】請求項１記載の本発明によれば、ブロアーによ
り吸入管から切羽およびシールド機内の汚れた空気を吸
い込み、風管および排気ダクトを介して地上に排出す
る。その結果、新鮮な空気がトンネルそのものを風道と
して切羽に入ってくる。また、吸入管はシールド機内に
設けているのでシールド機の掘進にともないその位置も
前進して、常にシールド機内の温度および湿度の高い空
気を排出することにより、作業環境の改善を図ることが
できる。According to the first aspect of the present invention, the blower sucks the air contaminated in the face and the shield machine from the suction pipe and discharges it to the ground through the wind pipe and the exhaust duct. As a result, fresh air enters the face with the tunnel itself as a windway. Further, since the suction pipe is provided in the shield machine, its position is advanced as the shield machine is dug, and the working environment can be improved by constantly discharging air with high temperature and humidity inside the shield machine. .
【０００８】請求項２記載の本発明によれば、前記作用
に加えて、伸縮管の伸長で掘進に伴う排気ダクトの不足
を一時的に補い、排気ダクトの継ぎ足しはその後の適当
な時期を選んで定期的に行うことができる。According to the second aspect of the present invention, in addition to the above-mentioned action, the shortage of the exhaust duct due to the excavation due to the expansion of the expansion tube is temporarily compensated, and the exhaust duct is replenished at an appropriate time thereafter. Can be done on a regular basis.
【０００９】[0009]
【実施例】以下、図面について本発明の実施例を詳細に
説明する。図１は本発明のシールド工事の切羽の換気設
備の１実施例を示す側面図、図２はシールド機部分の側
面図、図３は同上縦断正面図である。Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a side view showing one embodiment of a face ventilation system for shield construction of the present invention, FIG. 2 is a side view of a shield machine portion, and FIG.
【００１０】図示の例は泥土加圧式のシールド機の場合
で、シールド機１は、１例として図に示すように、モー
タ２で駆動されるカッターディスク３をスキンプレート
による筒状本体の前端面に有し、該カッターディスク３
の後方のチャンバー４には排土用のスクリューコンベヤ
ー５の先端を臨ませ、また、シールドジャッキ６を配置
している。７は本体のテールシール、８はセグメント組
立用のセグメントエレクタ、９は真円保持装置である。The illustrated example is a case of a mud pressure type shield machine, and the shield machine 1 includes, as an example, a cutter disk 3 driven by a motor 2 and a front end surface of a cylindrical main body formed by a skin plate. The cutter disk 3
The tip of a screw conveyor 5 for soil discharge is exposed to the rear chamber 4 of the and the shield jack 6 is arranged. Reference numeral 7 is a main body tail seal, 8 is a segment erector for segment assembly, and 9 is a perfect circle holding device.
【００１１】本発明は、前記シールド機１の本体内で、
例えばチャンバー４の後方に、吸入管10を本体の上半部
にそって円弧状に並べて設け、この並列する吸入管10は
連通管11で相互に連通させ、かつ、風管12に接続させ
た。In the present invention, in the main body of the shield machine 1,
For example, suction pipes 10 are arranged in an arc shape along the upper half of the main body in the rear of the chamber 4, and the parallel suction pipes 10 are connected to each other by a communication pipe 11 and connected to a wind pipe 12. .
【００１２】一方、後方台車としては、パワーユニット
台車13、裏注台車（裏込め注入用台車）14、泥土加圧用
ポンプ台車15、裏注・加泥・操作台車16等の台車が並ぶ
が、これら後方台車の最後尾にブロアー台車17を配置す
る。そして、前記風管12はシールドトンネル内を後方へ
伸ばして、このブロアー台車17に載置したブロアーの吸
入側に接続した。On the other hand, as the rear bogie, there are a power unit bogie 13, a back pouring bogie (back filling pouring bogie) 14, a mud pressurizing pump bogie 15, a back pouring / adding mud / operation bogie 16, etc. Blower truck 17 is placed at the end of the rear truck. Then, the wind pipe 12 extends backward in the shield tunnel and is connected to the suction side of the blower mounted on the blower carriage 17.
【００１３】図４、図５にこのブロアー台車17の詳細を
示すと、載置するブロアー18は吸入側消音器19と吐出側
消音器20とを接続してあり、この吸入側消音器19の吸入
口には分離器21を設け、該分離器21に前記風管12の末端
を接続する。4 and 5 show the blower carriage 17 in detail. The blower 18 to be mounted has a suction side silencer 19 and a discharge side silencer 20 connected to each other. A separator 21 is provided at the suction port, and the end of the air tube 12 is connected to the separator 21.
【００１４】また、吐出側消音器20の吐出側には蛇腹管
などによる伸縮管22を設け、この伸縮管22をブロアー台
車17から後方へ引き出せるようにした。そして、竪坑23
を通して設置する地上への排気ダクト24の先端に前記伸
縮管22の後端を接続させるものとする。この排気ダクト
24は継ぎ足し可能な固定管でよい。Further, an expandable tube 22 such as a bellows tube is provided on the discharge side of the discharge side silencer 20 so that the expandable tube 22 can be pulled out rearward from the blower carriage 17. And vertical shaft 23
It is assumed that the rear end of the expansion tube 22 is connected to the tip of the exhaust duct 24 installed on the ground. This exhaust duct
24 may be a fixed tube that can be added.
【００１５】使用法について説明すると、前記ブロアー
18を運転すれば、このブロアー18によりシールド機１内
の吸入管10から切羽およびシールド機１内の汚れた空気
が吸い込まれ、風管12および排気ダクト24を介して地上
に排出され、その結果、新鮮な空気がトンネルそのもの
を風道として切羽に入ってくる。The blower will be described.
When the 18 is operated, the blower 18 sucks the face air and the dirty air in the shield machine 1 from the suction pipe 10 in the shield machine 1 and discharges it to the ground via the wind pipe 12 and the exhaust duct 24, as a result. , Fresh air enters the face with the tunnel itself as a windway.
【００１６】また、吸入管１はシールド機１内に設けて
いるので、このシールド機１の掘進にともない常にその
位置も前進させることができるが、かかる前進にはブロ
アー台車17も前進させる。Further, since the suction pipe 1 is provided in the shield machine 1, its position can be always advanced as the shield machine 1 is moved forward, but the blower carriage 17 is also moved forward for such advancement.
【００１７】そして、ブロアー台車17は伸縮管22を伸長
させながら前進するので、排気ダクト24への送気は阻害
されない。一定長さブロアー台車17が前進したならば、
伸縮管22と排気ダクト24とを切り離し、伸縮管22を縮め
て新たな排気ダクト24を継ぎ足し、また、縮めた伸縮管
22をこの継ぎ足した排気ダクト24の先端に接続し直す。Since the blower carriage 17 moves forward while extending the expansion tube 22, the air supply to the exhaust duct 24 is not hindered. If the fixed length blower truck 17 moves forward,
The expansion tube 22 and the exhaust duct 24 are separated, the expansion tube 22 is contracted and a new exhaust duct 24 is added, and the contracted expansion tube is also contracted.
Reconnect 22 to the tip of this added exhaust duct 24.
【００１８】[0018]
【発明の効果】以上述べたように本発明のシールド工事
の切羽の換気設備は、シールド機内あるいは切羽付近に
滞留する可燃性ガスや有毒ガスを効率的に排出して、作
業環境の改善を積極的に図ることができるものである。As described above, the face ventilation equipment for the shield work of the present invention efficiently discharges the flammable gas and the toxic gas accumulated in the shield machine or near the face to improve the working environment. It is possible to aim at it.
【図１】本発明のシールド工事の切羽の換気設備の１実
施例を示す側面図である。FIG. 1 is a side view showing an embodiment of a face ventilation system for shield work according to the present invention.
【図２】本発明のシールド工事の切羽の換気設備のシー
ルド機部分の側面図である。FIG. 2 is a side view of a shield machine portion of the face ventilation equipment for shield work of the present invention.
【図３】本発明のシールド工事の切羽の換気設備のシー
ルド機部分の縦断正面図である。FIG. 3 is a vertical cross-sectional front view of a shield machine portion of the face ventilation equipment for shield work of the present invention.
【図４】ブロアー台車の側面図である。FIG. 4 is a side view of the blower cart.
【図５】ブロアー台車の正面図である。FIG. 5 is a front view of a blower cart.
１…シールド機 ２…モータ ３…カッターディスク ４…チャンバー ５…スクリューコンベア ６…シールドジャッキ ７…テールシール ８…セグメントエレク
タ ９…真円保持装置 10…吸入管 11…連通管 12…風管 13…パワーユニット台車 14…裏注台車 15…泥土加圧用ポンプ台車 16…裏注・加泥・操作
台車 17…ブロアー台車 18…ブロアー 19…吸入側消音器 20…吐出側消音器 21…分離器 22…伸縮管 23…竪坑 24…排気ダクト1 ... Shielding machine 2 ... Motor 3 ... Cutter disk 4 ... Chamber 5 ... Screw conveyor 6 ... Shield jack 7 ... Tail seal 8 ... Segment erector 9 ... Perfect circle holding device 10 ... Suction pipe 11 ... Communication pipe 12 ... Wind pipe 13 ... Power unit trolley 14… Back pouring trolley 15… Muddy pressurizing pump trolley 16… Back pouring / mudging / operation trolley 17… Blower trolley 18… Blower 19… Suction side silencer 20… Discharge side silencer 21… Separator 22… Expansion and contraction Pipe 23 ... Vertical shaft 24 ... Exhaust duct
Claims (2)
の後尾にブロアーを設置し、竪坑を通して設置する地上
への排気ダクトをこのブロアーの吐出側に接続し、前記
吸入管を風管を介して前記ブロアーの吸入側に接続した
ことを特徴とするシールド工事の切羽の換気設備。1. An intake pipe is provided in a shield machine, a blower is installed at the tail of a rear bogie, an exhaust duct to the ground installed through a vertical shaft is connected to the discharge side of the blower, and the intake pipe is connected via a wind pipe. A ventilation system for the face of the shield work, which is connected to the suction side of the blower.
縮管を設ける請求項１記載のシールド工事の切羽の換気
設備。2. The face ventilation equipment for shield work according to claim 1, wherein an expansion pipe is provided between the discharge side of the blower and the exhaust duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5307999A JP2802579B2 (en) | 1993-12-08 | 1993-12-08 | Face ventilation equipment for shield construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5307999A JP2802579B2 (en) | 1993-12-08 | 1993-12-08 | Face ventilation equipment for shield construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07158385A true JPH07158385A (en) | 1995-06-20 |
| JP2802579B2 JP2802579B2 (en) | 1998-09-24 |
Family
ID=17975688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5307999A Expired - Lifetime JP2802579B2 (en) | 1993-12-08 | 1993-12-08 | Face ventilation equipment for shield construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2802579B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194208A (en) * | 2015-05-06 | 2016-12-07 | 四川睿铁科技有限责任公司 | A kind of tunnel lining trolley of band ventilation duct |
| CN111608668A (en) * | 2020-04-30 | 2020-09-01 | 中国电建集团铁路建设有限公司 | Explosion-proof device and construction method for earth pressure balance shield construction in gas tunnel |
| CN118997820A (en) * | 2024-10-11 | 2024-11-22 | 温州市铁路与轨道交通投资集团有限公司 | Ventilation system for shield tunnel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH032500A (en) * | 1989-05-30 | 1991-01-08 | Fujita Corp | Operation controller for air blower for ventilation of shaft |
| JPH05306600A (en) * | 1992-04-30 | 1993-11-19 | Hazama Gumi Ltd | Piping device for construction equipment |
-
1993
- 1993-12-08 JP JP5307999A patent/JP2802579B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH032500A (en) * | 1989-05-30 | 1991-01-08 | Fujita Corp | Operation controller for air blower for ventilation of shaft |
| JPH05306600A (en) * | 1992-04-30 | 1993-11-19 | Hazama Gumi Ltd | Piping device for construction equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194208A (en) * | 2015-05-06 | 2016-12-07 | 四川睿铁科技有限责任公司 | A kind of tunnel lining trolley of band ventilation duct |
| CN111608668A (en) * | 2020-04-30 | 2020-09-01 | 中国电建集团铁路建设有限公司 | Explosion-proof device and construction method for earth pressure balance shield construction in gas tunnel |
| CN118997820A (en) * | 2024-10-11 | 2024-11-22 | 温州市铁路与轨道交通投资集团有限公司 | Ventilation system for shield tunnel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2802579B2 (en) | 1998-09-24 |
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