JPH05113093A - Dome for decompressing impulse wind pressure - Google Patents
Dome for decompressing impulse wind pressureInfo
- Publication number
- JPH05113093A JPH05113093A JP12322691A JP12322691A JPH05113093A JP H05113093 A JPH05113093 A JP H05113093A JP 12322691 A JP12322691 A JP 12322691A JP 12322691 A JP12322691 A JP 12322691A JP H05113093 A JPH05113093 A JP H05113093A
- Authority
- JP
- Japan
- Prior art keywords
- dome
- tunnel
- wind pressure
- entrance
- area
- 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
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高速で走行する電車や
自動車等の車両がトンネルに進入する際の衝撃風圧を減
圧するためのドームの構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dome structure for reducing the impact wind pressure when a vehicle such as a train or an automobile running at high speed enters a tunnel.
【０００２】[0002]
【従来の技術】高速で走行する車両がトンネルに進入す
る場合に、トンネル内部の静止空気と車両とが衝突し、
両者の間に大きな衝撃風圧が発生する。2. Description of the Related Art When a vehicle traveling at high speed enters a tunnel, stationary air inside the tunnel collides with the vehicle,
A large impact wind pressure is generated between them.
【０００３】[0003]
【発明が解決しようとする問題点】従来の車両は、衝撃
風圧を考慮するほどの高速ではなかったために、あえて
トンネルの進入口に特別な構造を採用する必要がなかっ
た。Since the conventional vehicle is not so fast as to take impact wind pressure into consideration, it is not necessary to use a special structure for the entrance of the tunnel.
【０００４】[0004]
【本発明の目的】本発明は、現在実際に走行している車
両よりも数倍の高速で走行するような車両に対応するた
めになされたもので、トンネルへの進入時に静止してい
る空気と車両との衝撃によって発生する風圧を減圧する
ことのできるドームの構造を提供することを目的とす
る。An object of the present invention is to cope with a vehicle which travels at a speed several times higher than that of a vehicle which is actually traveling at present. An object of the present invention is to provide a dome structure capable of reducing the wind pressure generated by the impact between the vehicle and the vehicle.
【０００５】[0005]
【問題点を解決するための手段】本発明は、トンネルの
入り口の通路上部の空間を包囲する構造であって、両壁
面と天井面とよりなり、壁面と天井面、あるいはそのい
ずれかの面に多数の開放窓を開設し、この窓の面積が、
トンネル入り口に近付くにしたがって徐々に小さくなる
ように構成した、衝撃風圧を減圧するドームである。ま
た本発明は、トンネルの入り口の通路上部の空間を包囲
する構造であって、両壁面と天井面とよりなり、壁面と
天井面、あるいはそのいずれかの面に多数の開放窓を開
設し、この窓の面積を調整可能に構成した、衝撃風圧を
減圧するドームである。The present invention has a structure for enclosing a space above a passageway at the entrance of a tunnel, and is composed of both wall surfaces and a ceiling surface, and the wall surface and / or the ceiling surface. We have opened a number of open windows in
It is a dome that reduces the impact wind pressure and is configured to gradually decrease as it approaches the entrance of the tunnel. Further, the present invention is a structure that surrounds the space above the passageway at the entrance of the tunnel, consisting of both wall surfaces and a ceiling surface, and opening a large number of open windows on the wall surface and the ceiling surface, or on one of them It is a dome configured to adjust the area of this window to reduce the impact wind pressure.
【０００６】[0006]
【本発明の構成】以下図面を参照しながら本発明につい
て説明する。 〈イ〉全体の構成 本発明のドーム１は、トンネル２の入り口の外部に設置
する。そしてこのドーム１は、両壁面３と天井面４とに
よって形成し、トンネルの外部に敷設したレールや道路
などの線路上の空間を包囲する状態で位置する。この両
壁面３と天井面４によって包囲された空間が、車両の通
路となる。ドーム１自体はコンクリートで形成する場
合、あるいはコンクリートと鋼製の部材の組み合わせな
どで構成することもできる。 〈ロ〉開放窓 トンネル２の入り口の外部を包囲した壁面３および天井
面４、あるいは壁面３か天井面４のいずれかの面に多数
の開放窓５を開設する。この窓５の開放面積は一定では
なく、トンネル２入り口に近付くにしたがって徐々に小
さくなるように構成する点に特徴を有する。この開口面
積の減少の割合は、侵入してくる車両の最高速度、車両
の前面の面積、ドーム１の断面積、ドーム１の長さ、等
の条件によって決定する。 〈ハ〉調整可能な構造 この窓５を正確な設計に基づいてコンクリートの一部に
開口した場合には面積の調整をする必要がない。しかし
その窓５の面積を調整可能に構成することもできる。そ
のためには図３に示すように、水平ガイド材６を複数
本、レールなどと平行に設置し、そのガイド材６に沿っ
て移動可能なコ字状、逆Ｕ字状の枠体７を多数設ける構
造を採用することもできる。この枠体７の垂直部分が壁
面３を構成し、上部のアーチ部分が天井面４を構成する
ことになる。こうした構成であれば、各枠体７を水平ガ
イド材６に沿って移動させることによって距離を調節で
き、結果的に枠体７間の空間の面積、すなわち開放窓５
の面積を自由に調整できることになる。この場合に、枠
体７の移動する床面を、移動が円滑なスライド面として
構成しておく。さらに、ドーム１の一部を二重構造と
し、その一方のドーム１を移動可能に構成する場合も考
えられる。このように構成すると、可動側のドーム１
を、不動側のドーム１に被せるようにして移動させれ
ば、窓５の部分が移動可能な側のドーム１によって遮蔽
され、窓５の面積を調整することができる。さらに通常
の家屋の窓と同様に、各開放窓５を開閉自在に構成する
ことも可能である。The present invention will be described below with reference to the drawings. <A> Overall configuration The dome 1 of the present invention is installed outside the entrance of the tunnel 2. The dome 1 is formed by the both wall surfaces 3 and the ceiling surface 4 and is positioned so as to surround the space on the rail such as a rail or a road laid outside the tunnel. The space surrounded by both the wall surfaces 3 and the ceiling surface 4 serves as a passage for the vehicle. The dome 1 itself may be formed of concrete or a combination of concrete and steel members. <B> Opening Window A large number of opening windows 5 are provided on the wall surface 3 and the ceiling surface 4 surrounding the outside of the entrance of the tunnel 2 or on either the wall surface 3 or the ceiling surface 4. The open area of the window 5 is not constant, and is characterized in that it is configured to gradually decrease as it approaches the entrance of the tunnel 2. The rate of decrease of the opening area is determined by conditions such as the maximum speed of the vehicle entering, the area of the front surface of the vehicle, the cross-sectional area of the dome 1, the length of the dome 1, and the like. <C> Adjustable structure When the window 5 is opened in a part of concrete based on an accurate design, it is not necessary to adjust the area. However, the area of the window 5 may be adjustable. For that purpose, as shown in FIG. 3, a plurality of horizontal guide members 6 are installed in parallel with rails, and a large number of U-shaped and inverted U-shaped frame members 7 movable along the guide members 6 are provided. It is also possible to adopt a structure provided. The vertical portion of the frame 7 constitutes the wall surface 3, and the upper arch portion constitutes the ceiling surface 4. With such a configuration, the distance can be adjusted by moving each frame body 7 along the horizontal guide member 6, and as a result, the area of the space between the frame bodies 7, that is, the open window 5
The area of can be adjusted freely. In this case, the moving floor surface of the frame body 7 is configured as a sliding surface that is smoothly moved. Further, it may be considered that a part of the dome 1 has a double structure and one of the dome 1 is movable. With this configuration, the movable dome 1
Is moved so as to cover the stationary dome 1, the window 5 is shielded by the movable dome 1, and the area of the window 5 can be adjusted. Further, like the windows of a normal house, each open window 5 can be configured to be openable and closable.
【０００７】[0007]
〈イ〉固定型の場合 以上の構成のドーム１を、トンネル２入り口の線路の空
間を包囲する状態で設置する。すると車両が高速でトン
ネル２に進入する場合にまずこのドーム１に突入するこ
とになる。するとドーム１の周囲の開放窓５の面積は入
り口からトンネル２側に向かって徐々に小さくなるよう
に構成してあるから、その衝撃は進入の状況に応じて徐
々に緩和される゜したがって車両はいきなり静止した空
気の塊に激突するような大きな衝撃を受けることがな
く、徐々に空気の移動を促してスムーズにトンネル２内
に進入することができる。 〈ロ〉調整型の場合 調整可能なタイプの場合には、ガイド材６に沿って枠体
７を移動させながら衝撃風圧を減衰するための最適な条
件を探すことができる。そのために例えば図５に示すよ
うに枠体７のガイド材６貫通孔８の周囲に、水や空気で
膨脹する膨脹リング９を設けておく。そして計算上から
衝撃圧の減圧に有効であると思われる位置に枠体７をい
ったん移動し、膨脹リングを膨脹させて枠体７を仮に固
定する。そして実際の列車の通過の際の実測値を求め、
設計値との差を補正しながら、枠体７を移動し、窓の面
積が最適である位置を探す。こうして最良の位置が判明
したら、膨脹リング９の間に、注入パイプ１０を介して
モルタルなどを注入して枠体７の位置を固定する。<A> Case of Fixed Type The dome 1 having the above-described configuration is installed so as to surround the space of the line at the entrance of the tunnel 2. Then, when the vehicle enters the tunnel 2 at a high speed, it first enters the dome 1. Then, since the area of the open window 5 around the dome 1 is gradually reduced from the entrance toward the tunnel 2 side, the impact is gradually eased depending on the approach situation. It is possible to smoothly move into the tunnel 2 by gradually promoting the movement of air without being subjected to a large impact such as suddenly hitting a still air mass. <B> Adjustable type In the case of the adjustable type, it is possible to find the optimum condition for damping the impact wind pressure while moving the frame body 7 along the guide member 6. Therefore, for example, as shown in FIG. 5, an expansion ring 9 that expands with water or air is provided around the guide member 6 through hole 8 of the frame body 7. Then, the frame 7 is once moved to a position that is considered effective for reducing the impact pressure from the calculation, and the expansion ring is expanded to temporarily fix the frame 7. Then, obtain the actual measurement value when the actual train passes,
While correcting the difference from the design value, the frame body 7 is moved to find a position where the window area is optimum. When the best position is found in this way, mortar or the like is injected between the expansion rings 9 through the injection pipe 10 to fix the position of the frame body 7.
【０００８】[0008]
【発明の効果】本発明は以上説明したようになるから超
高速で走行する車両が、トンネル２に進入する場合で
も、静止した空気の塊にいきなり衝突するような現象が
発生することがなく、徐々に空気の移動を促進し、スム
ーズな進入を果たすことができるものである。さらにド
ーム型に構成したから、ドーム内での音の吸収や消音の
効果が良好である。また同様にドーム構造であるために
壁式の構造と異なり、部材を薄くすることができ経済的
である。さらにトンネル断面と同一形状のドーム型とす
ることによって、ドームとトンネルとの接合形状、接合
作業が容易となり経済的である。Since the present invention is as described above, even when a vehicle traveling at an ultrahigh speed enters the tunnel 2, the phenomenon of sudden collision with a stationary mass of air does not occur. It is possible to gradually promote the movement of air and achieve a smooth entry. Furthermore, since it is configured in a dome shape, the effect of absorbing and muffling sound inside the dome is good. Further, similarly, since it is a dome structure, unlike a wall type structure, the member can be made thin, which is economical. Further, by adopting a dome shape having the same shape as the cross section of the tunnel, the bonding shape and the bonding work between the dome and the tunnel are facilitated, which is economical.
【図１】本発明のドームの説明図。FIG. 1 is an explanatory view of a dome of the present invention.
【図２】その断面図。FIG. 2 is a sectional view thereof.
【図３】他の実施例の説明図。FIG. 3 is an explanatory view of another embodiment.
【図４】その断面図。FIG. 4 is a sectional view thereof.
【図５】枠体をガイド材に固定する構成の説明図。FIG. 5 is an explanatory diagram of a configuration for fixing the frame body to the guide member.
Claims (2)
する構造であって、 両壁面と天井面とよりなり、 壁面と天井面、あるいはそのいずれかの面に多数の開放
窓を開設し、 この窓の面積が、トンネル入り口に近付くにしたがって
徐々に小さくなるように構成した、 衝撃風圧を減圧するドーム1. A structure for enclosing a space above a passageway at the entrance of a tunnel, which comprises both wall surfaces and a ceiling surface, and a large number of open windows are provided on the wall surface and / or the ceiling surface, A dome that reduces the impact wind pressure by gradually reducing the area of this window as it approaches the entrance of the tunnel.
する構造であって、 両壁面と天井面とよりなり、 壁面と天井面、あるいはそのいずれかの面に多数の開放
窓を開設し、 この窓の面積を調整可能に構成した、 衝撃風圧を減圧するドーム2. A structure for enclosing a space above a passageway at the entrance of a tunnel, which comprises both wall surfaces and a ceiling surface, and a large number of open windows are provided on the wall surface and / or the ceiling surface, A dome that reduces the impact wind pressure by adjusting the area of this window
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3123226A JP3003055B2 (en) | 1991-03-06 | 1991-03-06 | Dome to reduce shock wind pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3123226A JP3003055B2 (en) | 1991-03-06 | 1991-03-06 | Dome to reduce shock wind pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05113093A true JPH05113093A (en) | 1993-05-07 |
| JP3003055B2 JP3003055B2 (en) | 2000-01-24 |
Family
ID=14855326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3123226A Expired - Lifetime JP3003055B2 (en) | 1991-03-06 | 1991-03-06 | Dome to reduce shock wind pressure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3003055B2 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003080997A1 (en) * | 2002-03-26 | 2003-10-02 | Central Japan Railway Company | Buffer plate |
| KR100449512B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Duct tunnel system |
| KR100449513B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Duct tunnel system |
| KR100449511B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Draft hole type train tunnel |
| KR100449510B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Draft hole type train tunnel |
| KR100449509B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Draft hole type train tunnel |
| KR100449514B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Duct tunnel system |
| CN103670436A (en) * | 2013-11-29 | 2014-03-26 | 西南交通大学 | Lateral stripped sonic boom control structure of high-speed rail tunnel portal |
| JP2016132928A (en) * | 2015-01-20 | 2016-07-25 | 東海旅客鉄道株式会社 | Buffer construction |
| KR20170000259A (en) * | 2015-06-23 | 2017-01-02 | 한국철도기술연구원 | Hood structure capable of regularing discharge amount of compressed air |
| CN107387111A (en) * | 2017-08-17 | 2017-11-24 | 中铁第四勘察设计院集团有限公司 | Relief hole buffer structure at a kind of high speed subway tunnel portal |
| JP2020041289A (en) * | 2018-09-07 | 2020-03-19 | 公益財団法人鉄道総合技術研究所 | Opening adjusting device and opening adjusting method for tunnel buffer |
| JP2021059867A (en) * | 2019-10-04 | 2021-04-15 | 公益財団法人鉄道総合技術研究所 | Optimum opening setting method for tunnel buffer construction and optimum opening setting device thereof |
| CN113550244A (en) * | 2021-07-31 | 2021-10-26 | 王培� | Sound insulation device for expressway tunnel |
| CN114165253A (en) * | 2021-11-10 | 2022-03-11 | 中铁二院工程集团有限责任公司 | Double-layer gradually-changed hole buffer structure for tunnel portal of ultrahigh-speed railway |
| CN114837688A (en) * | 2022-05-10 | 2022-08-02 | 中南大学 | Structure for relieving tunnel micro-pressure wave |
-
1991
- 1991-03-06 JP JP3123226A patent/JP3003055B2/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100449512B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Duct tunnel system |
| KR100449513B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Duct tunnel system |
| KR100449511B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Draft hole type train tunnel |
| KR100449510B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Draft hole type train tunnel |
| KR100449509B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Draft hole type train tunnel |
| KR100449514B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Duct tunnel system |
| WO2003080997A1 (en) * | 2002-03-26 | 2003-10-02 | Central Japan Railway Company | Buffer plate |
| CN103670436A (en) * | 2013-11-29 | 2014-03-26 | 西南交通大学 | Lateral stripped sonic boom control structure of high-speed rail tunnel portal |
| JP2016132928A (en) * | 2015-01-20 | 2016-07-25 | 東海旅客鉄道株式会社 | Buffer construction |
| KR20170000259A (en) * | 2015-06-23 | 2017-01-02 | 한국철도기술연구원 | Hood structure capable of regularing discharge amount of compressed air |
| CN107387111A (en) * | 2017-08-17 | 2017-11-24 | 中铁第四勘察设计院集团有限公司 | Relief hole buffer structure at a kind of high speed subway tunnel portal |
| JP2020041289A (en) * | 2018-09-07 | 2020-03-19 | 公益財団法人鉄道総合技術研究所 | Opening adjusting device and opening adjusting method for tunnel buffer |
| JP2021059867A (en) * | 2019-10-04 | 2021-04-15 | 公益財団法人鉄道総合技術研究所 | Optimum opening setting method for tunnel buffer construction and optimum opening setting device thereof |
| CN113550244A (en) * | 2021-07-31 | 2021-10-26 | 王培� | Sound insulation device for expressway tunnel |
| CN114165253A (en) * | 2021-11-10 | 2022-03-11 | 中铁二院工程集团有限责任公司 | Double-layer gradually-changed hole buffer structure for tunnel portal of ultrahigh-speed railway |
| CN114837688A (en) * | 2022-05-10 | 2022-08-02 | 中南大学 | Structure for relieving tunnel micro-pressure wave |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3003055B2 (en) | 2000-01-24 |
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