JPH0288900A - Train resistance of single track tunnel and atmospheric-pressure change reducer - Google Patents
Train resistance of single track tunnel and atmospheric-pressure change reducerInfo
- Publication number
- JPH0288900A JPH0288900A JP23896388A JP23896388A JPH0288900A JP H0288900 A JPH0288900 A JP H0288900A JP 23896388 A JP23896388 A JP 23896388A JP 23896388 A JP23896388 A JP 23896388A JP H0288900 A JPH0288900 A JP H0288900A
- Authority
- JP
- Japan
- Prior art keywords
- tunnel
- train
- air
- outlet
- air blower
- 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.)
- Pending
Links
- 239000003638 chemical reducing agent Substances 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000007664 blowing Methods 0.000 claims description 4
- 238000013459 approach Methods 0.000 abstract description 4
- 238000005422 blasting Methods 0.000 abstract 3
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/003—Ventilation of traffic tunnels
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は鉄道技術分野に属するものである。[Detailed description of the invention] [Industrial application field] This invention belongs to the field of railway technology.
（従来の技術）
従来、単線１−ン不ルを通過する列車は高速でなく１列
車抵（ｊＣの増加や気圧変動を問題にすることはなかっ
た。(Prior Art) Conventionally, trains passing through a single-track railway track were not at high speed, and problems such as an increase in train resistance (JC) and fluctuations in air pressure did not arise.
将来の高速輸送手段の一種として提案されているチュー
ブ輸送において列車前後の空気を減圧および加圧する方
式がｆｆ Ｘされているが、その場合のトンネル側の圧
力遮断壁については具体的方法が提にされていない。In tube transportation, which has been proposed as a type of high-speed transportation in the future, a method of depressurizing and pressurizing the air before and after the train has been proposed. It has not been.
この圧力遮断壁は列車の走行に同期して作動しなければ
ならないが、万一同期しない場合でも安全な方法でなけ
ればならない。This pressure isolation wall must operate in synchronization with the running of the train, but even if it does not synchronize, it must be operated in a safe manner.
（発明が解決しようとする課題〕
単線トンネル内で列車を高速で運転しようとする場合９
列車前方の空気を押し出すとともに列車後方の空気を引
き込むために列車抵抗は大きくなり、高速で走行するご
とが困難となる。しかも列車の周囲の気圧変動も大きく
なり、それは車内の気圧変動にも及び５乗客の耳に不快
感を与える事になる。またこの気圧変動はトンネル外部
にも微気圧波（低周波音波）として悪影響を及ぼす。(Problem to be solved by the invention) When trying to operate a train at high speed in a single-track tunnel 9
As the air in front of the train is pushed out and the air behind the train is drawn in, train resistance increases, making it difficult to travel at high speeds. Moreover, the air pressure fluctuations around the train become large, which extends to the air pressure fluctuations inside the train, causing discomfort to the ears of the five passengers. This pressure fluctuation also has a negative effect on the outside of the tunnel as micro-pressure waves (low-frequency sound waves).
これを防ぐ手段として列車前方の空気を排気し列車後方
に空気を送風することが考えられているが、トンネルの
出入り口に送風機を設置することは列車の通行を妨げる
ので出来ない。As a means to prevent this, it has been considered to exhaust the air in front of the train and blow the air to the rear of the train, but it is not possible to install a blower at the entrance/exit of the tunnel because it would obstruct train passage.
したがって単線トンネルの場合には第１図のように出入
り口付近にトンネルに平行に送排風両用の送風機を設置
し、複線用に単線トンネルを２本並べた複列トンネルの
場合には第２図のように出入り口付近で両トンネルを結
ぶ側トンネルに送排風両用の送風機を設置する。そして
トンネルの出入り口を遮断することによって、はじめて
列車の１ｒＩ方の空気を排気し５列車の後方に空気を送
ることができる。Therefore, in the case of a single-track tunnel, a fan for both blowing and discharging air is installed near the entrance and exit parallel to the tunnel as shown in Figure 1, and in the case of a double-track tunnel with two single-track tunnels lined up, Figure 2 shows the A blower for both blowing and discharging air is installed in the side tunnel that connects both tunnels near the entrance and exit. By blocking the entrance and exit of the tunnel, it is possible to exhaust the air from the 1rI side of the train and send the air to the rear of the 5th train.
列車の走行に同期させて遮断壁を開閉することが必要と
なるが、開放が遅れる場合等に２列車がそれに１４１突
しても安全である方法でなければならない。It is necessary to open and close the barrier in synchronization with the running of the trains, but the method must be safe even if two trains collide with it if the opening is delayed.
（課題を解決するための手段）
トン２ル（第１図１）の長さと列車の速度に比例した吋
以上の水をトンネルの両入口の上部（第１図２）に用穿
し１列車のトンネル進入に同期してＩ・ンネルの両入り
口を塞ぎ、空気の流れを遮断するように列車の速度に比
例した１７さの水の壁（第１図３）を作る。(Means for solving the problem) Pour water of 2 tons or more in proportion to the length of the tunnel (Fig. 1, 1) and the speed of the train into the upper part of both entrances of the tunnel (Fig. 1, 2). At the same time as the train enters the tunnel, it blocks both entrances to the tunnel, creating a 17-inch wall of water (Fig. 1, 3) proportional to the speed of the train, blocking the flow of air.
〔作用〕
列車がトンネルにさしかかると、トンネル出口側の送風
機（第１図４）を排気側にして運転を開始し、トンネル
出口を塞ぐ様に設けた排水スリットから水を流しはじめ
氷壁を構成し、トンネル出口側の外気と遮断する。する
と列車は吸い込まれル＋ｆｆｉにトンネルに進入して１
列車前方の空気を押す必要がなくなり、気圧変動も生じ
ない。[Operation] When the train approaches the tunnel, the blower at the exit of the tunnel (Fig. 1, 4) is turned to the exhaust side and starts running, and water begins to flow through the drainage slit that was set up to block the exit of the tunnel, forming an ice wall. , cut off from the outside air on the tunnel exit side. Then the train was sucked into the tunnel and 1
There is no need to push the air in front of the train, and there are no pressure fluctuations.
列車がトンネルに入り終わると、トンネル人口側の送風
機を送風側にして運転を開始し、トンふル人口を塞ぐ様
に設けた排水スリットから水を流しはしめ氷壁を構成し
、トンネル人口側の外気と遮断する。すると列車は列車
後方の空気を吸い込む必要がなくなる。Once the train has entered the tunnel, operation is started with the blower on the tunnel population side set to the blower side, and water flows through the drainage slit that was set up so as to block the tunnel population, forming an ice wall and discharging the outside air on the tunnel population side. and cut off. Then the train no longer needs to suck in air from behind the train.
列車がトンネル出口に近づくと、トンネル出口側の排水
を停止し、排気用送風機の運転を停止して１列車が氷壁
を突き抜けないようにする。When a train approaches the tunnel exit, the drainage on the tunnel exit side is stopped and the exhaust blower is stopped to prevent the train from penetrating through the ice wall.
列車がトンネルを出ると、トンノル入口側のυト水を停
止し、送風機の運転を停止する。When the train exits the tunnel, the water supply to the entrance of the tunnel is stopped and the blower operation is stopped.
（実施例］
単線トンネル内で列車を高速で運転しようとする場合２
列車抵抗の増加や大きな気圧変動をなくＬｌ−ンネル外
と同し条件で運転できるように列車前方の空気を排気し
１列車後方に空気を送風するために、トンフル出入り口
にトンネルと平行に送（川風両用の送風機を設け３列車
のｌ１Ｉｌ過に合わＵ′てトンＺ・ルの出入り口を寒く
氷壁を構成出来るようにする。(Example) When trying to drive a train at high speed in a single-track tunnel 2
In order to exhaust the air in front of the train and send air to the rear of the train so that the train can operate under the same conditions as outside the tunnel without increasing train resistance or large pressure fluctuations, air is sent parallel to the tunnel at the entrance/exit of the tunnel ( A blower for both river and river winds will be installed to allow the entrance and exit of the tunnel to form a cold ice wall in line with the flow of the three trains.
列車の速度に比例した厚さの氷壁を作るために。To create an ice wall whose thickness is proportional to the speed of the train.
トンネル出入り１コｆＺｔ近の上部に２ 排水時にトン
ネルを出入り口を寒くようなスリットと、トンネルの長
さと列車の速度に比例した容計の水槽を設けそれを桔ふ
導管にバルブを設ける。A slit is provided at the top of the tunnel near the entry/exit point 2 to keep the tunnel entrance/exit cold during drainage, and a water tank with a capacity proportional to the length of the tunnel and the speed of the train is installed, and a valve is installed on the conduit to fill it.
なお１−ン不ル出入り口付近の下部に、排水を溜める水
槽を設け、上部の水槽に水を返す設備を設ける。Additionally, a water tank will be provided at the bottom near the entrance/exit of the building to collect waste water, and equipment will be provided to return water to the upper water tank.
複線の場合には、単線トンネルを複列にして両トンネル
を出入り口付近で結んで、そこに送排風両用の送風機を
設置する。In the case of double-track, the single-track tunnels are arranged in double rows, and both tunnels are connected near the entrance and exit, and a blower for both blowing and discharging air is installed there.
在７：腺を利用する高速列車計画、今後建設する高速鉄
道及び磁気浮上鉄道の計画に適用する。Current status 7: Applicable to high-speed train plans using glands, and plans for high-speed railways and magnetic levitation railways to be constructed in the future.
１、ンネルを高速列車が通過する際に問題となる走行抵
抗の増加７列車前後の気圧変動による乗客の「耳つん」
および「微気圧波」を解決するトンネル出入り口遮断を
安全乙こ行うことが出来る５1. Increased running resistance, which is a problem when high-speed trains pass through tunnels. 7. Passengers'"earsringing" due to air pressure fluctuations before and after the train.
It is possible to safely shut off tunnel entrances and exits to solve "micropressure waves"5.
第１図は単線トンネルを高速列車が左から右へ走行して
いる時の様子で１人口と出口ともＱこ送風機を運転中で
５出入口は氷壁で遮断している。
第２Ｖは複線（複列）トンネルの場合で１列ｊｆｉが右
から左に走行している状態である。列車通過中のトンネ
ル出入口のみ水壁を構成している。
ｌ −斗ン矛ル、 ２− 水槽
３ 水壁、 ・１ 送風機Figure 1 shows a high-speed train running from left to right in a single-track tunnel.Both exits and exits are operating with Q fans in operation, and entrances and exits are blocked off by an ice wall. 2nd V is a double-track (double-row) tunnel in which one row jfi runs from right to left. Only the tunnel entrances and exits where trains are passing are constructed with water walls. l-double spear, 2-water tank 3 water wall, ・1 blower
Claims (1)
の前後の空気を送排風する送風機と、トンネルの出入り
口にあって送排風の効果を生じさせる水壁を具備するこ
とを特徴とする単線トンネルでの列車抵抗および気圧変
動低減装置。It is characterized by being equipped with a blower that blows and exhausts air in front and behind the train that operates in synchronization with the train running in the single-track tunnel, and a water wall that is located at the entrance and exit of the tunnel and produces the effect of blowing and exhausting air. Train resistance and pressure fluctuation reduction device in single track tunnels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23896388A JPH0288900A (en) | 1988-09-26 | 1988-09-26 | Train resistance of single track tunnel and atmospheric-pressure change reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23896388A JPH0288900A (en) | 1988-09-26 | 1988-09-26 | Train resistance of single track tunnel and atmospheric-pressure change reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0288900A true JPH0288900A (en) | 1990-03-29 |
Family
ID=17037900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23896388A Pending JPH0288900A (en) | 1988-09-26 | 1988-09-26 | Train resistance of single track tunnel and atmospheric-pressure change reducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0288900A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005350042A (en) * | 2004-06-14 | 2005-12-22 | Masanori Kanetsugu | System for preventing shock and noise in air-blowing type tunnel |
| JP2010116734A (en) * | 2008-11-13 | 2010-05-27 | Railway Technical Res Inst | Upper and lower line connecting type high-speed air current circulation tunnel |
-
1988
- 1988-09-26 JP JP23896388A patent/JPH0288900A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005350042A (en) * | 2004-06-14 | 2005-12-22 | Masanori Kanetsugu | System for preventing shock and noise in air-blowing type tunnel |
| JP2010116734A (en) * | 2008-11-13 | 2010-05-27 | Railway Technical Res Inst | Upper and lower line connecting type high-speed air current circulation tunnel |
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