一、问题的提出现有的路面设计与计算中,路面的计算图式没有考虑路基路面各层材料弹性模量 E沿深度增加的图式。但是实际上 E 沿深度(一般是基层和路基部分)增加的路基路面结构是客观存在的,而且是大量的。例如:在广大北方冰冻区春融初期当基层和土基未完全融冻时;在山区道路岩石路基地段;在多年冻土路基地段;在刚性桥涵面上和旧水泥混凝土路面上 First, the problem raised In the existing pavement design and calculation, the pavement calculation diagram did not consider the elastic modulus E of each layer of subgrade pavement along the depth of the increase. However, in fact, the increase of subgrade pavement structure along the depths (usually the grassroots and subgrade parts) is objective and substantial. For example, when the grassroots and subgrade are not fully thawed during the early spring of the northern frigid spring, rock roadbed sections of mountainous roads, permafrost subgrade sections, rigid bridge culvert surfaces and old concrete pavements