研究了冻融与磨耗复合作用下的混凝土耐久性能。
The concrete durability under the compound action of freeze-thaw and abrasion is studied.
具有改善混凝土抗裂能力、抗冲击抗磨耗能力等作用。
It can be used to improve the concrete cracking resistance and seepage resistance.
运用轮轨相互作用原理，研究轮轨磨耗伤损的机理。
Based on the principle of wheel-rail interaction, the mechanism of the abrasive wear damage of wheels and rails is studied.
轮缘磨耗主要是轮轨相互作用的结果，而踏面上的凹槽磨耗可能主要由闸瓦制动引起。
The wheel flange wear is caused by the flange action of the wheel and rail, whereas the double-groove wear on tread may be mainly caused by the break shoe.
轮缘磨耗主要是轮轨相互作用的结果，而踏面上的凹槽磨耗可能主要由闸瓦制动引起。
The wheel flange wear is caused by the flange action of the wheel and rail, whereas the double-groove wear on tread may be mainly caused by the break shoe.
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