路面长期使用性能研究已成为国际道路工程界普遍重视的一项基础性研究。
The study of long term performance of pavement is now becoming to be an important field in road research.
目前，路面的疲劳开裂成为影响路面长期使用性能的一个重要因素，也是路面设计中非常重要的一个问题。
At present, fatigue cracking of pavement has become an important factor influencing the long-term service performance of pavement. It is also a very important problem in pavement design.
不均匀沉降直接影响路面的力学响应，并决定了路面的长期使用性能和路面寿命。
Differential settlement directly influences structural responses of pavements and governs long-term performance and service life of pavements.
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