一种预测混凝土路面断裂的方法

运用断裂力学理论，计算出3种典型轮载下引起断板的临界长度；通过无损检测，探测出可能产生断板部位的裂缝长度；比较二者，可知混凝土路面是否即将断裂。用此方法可及早发现可能产生断板的部位，采取适当防护措施延长公路使用寿命。

A Method of Forecasting Fracture of Concrete Pavement

Using the method of fracture mechanics, the critical length of cracks which induce the concrete pavement to break under the three typical wheel loading place are calculated. By nondestructive testing, the length of cracks which can be harmful to keep the concrete pavement integral are tested. It can be known whether the concrete pavement is going to break by compare with both of the lengths. Based on them, the positions which are going to break can be early found, and the protection measures are adopted in order to extend the road service life.