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A platform for research: civil engineering, architecture and urbanism
Ventilation method for long and large mountain tunnel construction
The invention discloses a ventilation method for long and large mountain tunnel construction. The ventilation method comprises the following steps that (1) before a tunnel is excavated and tunneled by1.2 kilometers, a press-in type method is adopted for ventilation, a plurality of transverse channels are arranged between a left line hole and a right line hole, two transverse channels closest to aconstruction tunnel face are used for traffic diversion, and other transverse channels are closed; (2) after the tunnel is excavated and tunneled by 1.2 kilometers, an air gathering chamber is arranged on the transverse channel closest to the construction tunnel face, foul gas in the air gathering chamber is exhausted through a soft air pipe, a local fan is arranged behind the transverse channelwhich is second close to the construction tunnel face, and a ventilation pipe is arranged between the local fan and the construction tunnel face; and (3) after the tunnel is excavated and tunneled by2.5 kilometers, an axial flow fan erected outside the holes is moved forwards by 1000 meters, a jet flow fan is arranged behind the local fan, and the air gathering chamber is pushed forwards along with forward movement of the construction tunnel face. The ventilation method has the characteristics that the foul gas in the holes is exhausted in time, and the exhausted gas is prevented from polluting the environment.
本发明公开了一种长大山岭隧道施工通风方法，其包括以下步骤：1)隧道挖掘进1.2千米前，采用压入式方法进行通风，左线洞和右线洞之间设置有若干横通道，利用距离施工掌子面最近的两个横通道进行交通导流，封闭其他横通道；2)隧道挖掘进1.2千米后，在距离施工掌子面最近的横通道上设置聚风室，通过软风管将聚风室内的污浊气体排出，距离施工掌子面第二相近的横通道的后方设置有局扇风机，局扇风机与施工掌子面之间设置有通风管；3)隧道挖掘进2.5千米后，将洞外架设的轴流风机前移1000米，在局扇风机后方设置射流风机，随着施工掌子面的前移，聚风室向前推移。本发明具有及时将洞内污浊气体排出，并避免排出气体污染环境等特点。
Ventilation method for long and large mountain tunnel construction
The invention discloses a ventilation method for long and large mountain tunnel construction. The ventilation method comprises the following steps that (1) before a tunnel is excavated and tunneled by1.2 kilometers, a press-in type method is adopted for ventilation, a plurality of transverse channels are arranged between a left line hole and a right line hole, two transverse channels closest to aconstruction tunnel face are used for traffic diversion, and other transverse channels are closed; (2) after the tunnel is excavated and tunneled by 1.2 kilometers, an air gathering chamber is arranged on the transverse channel closest to the construction tunnel face, foul gas in the air gathering chamber is exhausted through a soft air pipe, a local fan is arranged behind the transverse channelwhich is second close to the construction tunnel face, and a ventilation pipe is arranged between the local fan and the construction tunnel face; and (3) after the tunnel is excavated and tunneled by2.5 kilometers, an axial flow fan erected outside the holes is moved forwards by 1000 meters, a jet flow fan is arranged behind the local fan, and the air gathering chamber is pushed forwards along with forward movement of the construction tunnel face. The ventilation method has the characteristics that the foul gas in the holes is exhausted in time, and the exhausted gas is prevented from polluting the environment.
本发明公开了一种长大山岭隧道施工通风方法，其包括以下步骤：1)隧道挖掘进1.2千米前，采用压入式方法进行通风，左线洞和右线洞之间设置有若干横通道，利用距离施工掌子面最近的两个横通道进行交通导流，封闭其他横通道；2)隧道挖掘进1.2千米后，在距离施工掌子面最近的横通道上设置聚风室，通过软风管将聚风室内的污浊气体排出，距离施工掌子面第二相近的横通道的后方设置有局扇风机，局扇风机与施工掌子面之间设置有通风管；3)隧道挖掘进2.5千米后，将洞外架设的轴流风机前移1000米，在局扇风机后方设置射流风机，随着施工掌子面的前移，聚风室向前推移。本发明具有及时将洞内污浊气体排出，并避免排出气体污染环境等特点。
Ventilation method for long and large mountain tunnel construction
长大山岭隧道施工通风方法
GAO HANG (author) / PANG BIAO (author) / ZHENG JIAJIA (author)
2020-09-25
Patent
Electronic Resource
Chinese
IPC:
E21F
Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels
,
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
/
B01D
SEPARATION
,
Trennen
/
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
A Study on Large Power Jet Ventilation Technology in Long Tunnel Construction
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