Ai Xuede train derailed

The cause of the accident

Tyre design

ICE-1The wheels of the train which are integrally formed with a single cast iron manufacturing, but there are serious body shock and noise problems; therefore, later changed to the wheel by a layer of20Mm thick rubber coated, and then sets out the last relatively thin metal wheels, double metal wheels of the modification of the original design used in the public transport system on a slower; therefore, double metal wheel on the surface may not be able to see theMetal fatigueMicro cracks.

Railway institutions more managers have felt the shock, and study how to solve. Engineers think, must strengthenICEThe trainTheThe suspension systemWith the money, although not a tyre high speed test, but effectively solve the oscillation problem when driving. At that time, Germany's lack of detecting wheel real loss facilities.

Failed to stop

After the burst train failed to stop the wheel brake, is the main reason leading to after a series of events. If at that time the train instantly braking, the serious event opportunities will be greatly reduced.

Generally speaking, the railway company train noises came out, immediately startParking and inspection policiesHowever, this policy does not apply toICEOn the train. When the passengers to alert staff of a large metal inserted into the compartment, the train manager with the company policy as a reason, refuses to stop train, until the problem investigation is completed, there have been wasted valuable time. The manager was court prosecution.

Repair and maintenance

In the former period of time, the flash check wheel de iron Munich repair center engineers just use the standard type, can detect instrument of metal fatigue and not; but in more time before, but to use more advanced machine; however, this machine has many error information, the degree of reliability the machine is reduced, so was forced to disable.

Until the week before the incident, in the3With the automatic inspection of the wheel, detect the existing defect. Investigators found out from the computer system on the train's repair report, the train in the first two months, there have been8Times staff complaints from the steering wheel vibration noise and defective frame, but not replace iron and said, the daily inspection and engineering personnel properly, no wheel and make prediction[1].

 



Ai Xuede train derailed
Other factors

Flyover collapsed in the accident, the design is also indirectly led to one of the accident factors, reason is that both ends of the bridge is made of thin supported on piers, and is not solid arch design. Another factor is the steering frame welding position not suture.

Law

De iron in after the incident, immediately to each of the victims families30000Mark(ca.19000The dollar), and made a detail (such as compensation for spiritual guidance). While the amount of compensation should be as high as Germany railway accident1.5Million German Mark (3000Million dollars)[1].

2002Years8MonthGermany railway, two officials and an engineer accusedManslaughter. Because in Germany, the company is not sent to criminal court trial, only natural talent[1]. The case for2003Years4MonthConcluded, every engineer is fine10000Euro(ca.12000The dollar)[1].

Technology

A few weeks after the incident, the German iron all the similar design of the wheel, replaced by another wheel.

In the scene of the rescue personnel, encounter difficulties to rescue passengers carriage; mainly becauseICEAluminum alloy body and explosion-proof train the broken window, the rescuers used heavy rescue equipment in case of major resistance. The German iron also put all the window of the train, the replacement for in an emergency when available hammer breaking windows, to ensure safety.

Monument.