沥青路面三层结构模量反演最佳反演点的确定

Determination of Optimal Backcalculation Point for Three Layer Structure Modulus Backcalculation of Asphalt Pavement

摘要:

进行沥青路面三层结构模量反演，利用惰性弯沉点反演出土基模量后，再利用荷载中心点和距离荷载中心点附近的一点进行面层和基层模量反演时发现可能存在反算面层和基层模量的最佳反演点，通过大量的模量反算证实了最佳反演点的存在，寻找到最佳反演点的位置，并从理论上解释了最佳反演点存在的必然性.通过与国内外模量反算方法的对比，说明利用最佳反演点反演沥青路面三层结构模量不仅精度高而且效率也很高，使大量的模量反算成为可能.

Abstract:

It is found that optimal backcalculation point may be exist during the modulus backcalculation in the three layers structure of asphalt pavement. Through a large number of modulus backcalculation confirmed the existence of the optimal balckcalculation point and found the position of the optimal backcalculation point, try to explain the inevitability of existence of the optimal backcalculation point in theoretically. The writer compares the backcalculation method with domestic and foreign modulus backcalculation method through precision and efficiency, it is confirmed that the backcalculation method using optimal backcalculation point, precision and efficiency of this method are all very high which make the possible of massive modulus backcalculation.