Using this model, the dynamic responses of the rail joints are calculated, which provides the theoretical basis for raising speed of Jing Jiu Railway.

研究目的：为了研究轨道不平顺对轮轨作用力的影响，从而为钢轨焊接接头不平顺限值提供技术依据。

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Through the example of Ganjiang bridge on Jing-jiu railway line, the fracture mechanics model applied to evaluate the remaining fatigue life of existing riveted railway Bridges is investigated.

以京九线赣江桥为例，介绍了基于断裂力学的既有铆接铁路钢桥剩余寿命评估的原理与方法。

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Hebei Kangdi Glasses Case Factory is located 90km to southeast of provincial capital, neighbors on Qing-Yin Expressway, Jing-Jiu Railway, National Highway 106 and 308, enjoys the convenient traffic.

河北康迪镜盒厂，位于河北省省会东南90公里处毗邻青银高速、京九铁路、106、308国道，交通往来便利。

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