Debris flow can be directly buried stations, railways, highways, destruction of sub grade, bridges and Culver and other facilities, resulting in traffic disruption, but also can cause running trains, car subversion, resulting in major personal injury. Sometimes debris flow sinks the river, causing a substantial change on the river, the indirect destruction of roads, railways and other structures, and even forced the road to change the line, resulting in huge economic losses.
The largest loss of debris flow in the history of the world railway occurred in Dadu River in Sichuan Province Liziyida Bridge: July 1, 1981 at 1:44, the debris flow will be the original Lee son of the bridge washed away, 1:46, By the Geli Ping to Chengdu, 422 straight train filled with more than a thousand passengers to more than 40 kilometers per hour in the bridge south of the grandmother's tunnel and debris flow encountered, the train front and the first few sections of the car into the Dadu River The After the statistics, the disaster caused more than 300 people were killed; 146 people were injured, Chengdu's railway paralysis 372 hours, the direct economic loss of more than 2,000 yuan, is the history of the world railway so far by the debris flow disaster caused by the most serious train accident. In the train and debris flow crisis, the locomotive driver, Communist Party member Wang Mingru and locomotive deputy driver Tang Changhua pull the emergency brake gate in the last minute, and beat the bagpipe again and again in the last few seconds of life , greatly reduce the damage caused by the disaster.
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