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本文对美国波士顿—缅因铁路线上、内燃机车牵引的胡萨克双线隧道的运营通风及其特点作一简要介绍,为我国铁路隧道通风设计提供参考。一、概况在美国连接波士顿、缅因的铁路线上,位于马萨诸塞州西部北阿达姆斯附近的胡萨克双线隧道,建成于1875年,长25081英尺(7.645km)、宽24英尺(7.32m)、高22英尺8英寸(6.95m),东西方向,隧道内纵向坡度用5％的人字坡,全部为直线。这是在美国第一次修建这样长的大断面隧道。运营初期用蒸汽机车牵引。隧道的通风是通过15×27英尺(4.6×8.2m)椭圆形断面、深1028英尺(313.3m)的垂直竖井,作为自然拔风的烟囱,竖井位于隧道中部,在隧道施工中开挖建成的。后来由于铁路运量增加、蒸汽机车排烟不畅、烟气积累,只靠竖井的自然通风不能满足要求,必须通过
This paper gives a brief introduction of the operational ventilation and its characteristics of the Husak-type twin tunnels towed by diesel locomotives on the Boston-Maine Railway line in the United States and provides references for the ventilation design of railway tunnels in China. I. Overview In the U.S. railway connecting Boston and Maine, the Husak-twin tunnel near Adamas, western Massachusetts, was built in 1875 and is 25081 feet (7.645km) long and 24 feet (7.32 m), height 22 feet 8 inches (6.95m), east-west direction, the tunnel longitudinal gradient with 5% of the herringbone slope, all straight. This is the first time in the United States to build such a long section of the tunnel. Early operation with steam locomotive traction. The ventilation of the tunnel is through a vertical shaft of 15 x 27 ft (4.6 x 8.2 m) oval cross section with a depth of 1,028 ft (313.3 m) as a natural draft chimney located in the middle of the tunnel and excavated in a tunnel construction . Later, due to the increase of railway traffic, steam locomotive smoke poor, smoke accumulation, only by the natural ventilation of the shaft can not meet the requirements, must pass