The Method of Reducing Wheel Tread and the Revision of Tolerance Criterion

The interaction between wheel and rail results in the severe damage of the wheel tread,which is a problem that has not been resolved yet.According to present researches for damage of the wheel tread,the paper illustrates the method of reducing wheel tread in detail,and presents that it is necessary to revise the criterion of the damage tolerance of the wheel tread and then presents the method to revise it.