Bus that can cross the railway tunnel in Bengbu city

Bengbu used to be a city with Bengbu Railway Bureau. Bengbu Railway Bureau was established twice and cancelled twice.

It was the railway that brought Bengbu, not Bengbu that brought the railway. At the earliest time, Jin-Pu Railway and Huaihe River met here, and Central Plains coal and other goods were transported to Bengbu Wharf through Huaihe River and then sent out by railway. Later, the Huainan Railway, Shui Mu Line and Fuhuai Line were all completed.

Bengbu became an important railway hub in Huaibei area, so the Bengbu Railway Bureau or its sub-bureau was established, which was changed from Jinan Railway Bureau to Shanghai Railway Bureau, and there is still a Bengbu Railway Office.

It was the railway that brought Bengbu, not Bengbu that brought the railway. At the earliest time, Jin-Pu Railway and Huaihe River met here, and Central Plains coal and other goods were transported to Bengbu Wharf through Huaihe River and then sent out by railway. Later, Huainan Railway, Shuibei Line, Fuhuai Line and so on were all completed.

Railway tunnel is a passage dedicated to train transportation. When the railway crosses the mountainous area, it is necessary to overcome the elevation obstacle due to the limited traction capacity and the maximum slope limit (less than 24%). Mountain tunnel is a reasonable choice, which can shorten the line, reduce the slope, improve the operating conditions and improve the traction capacity.

According to its location, it can be divided into three categories: (1) In order to shorten the distance and avoid large ramps, it is called mountain tunnel; An underwater tunnel that passes under a river or seabed in order to cross a river or strait is called an underwater tunnel. In order to meet the needs of railway crossing big cities, it is called urban tunnel.