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公路路面设计时,必须首先取得有关运输车辆类型及相应交通量的资料,据此进行路面结构设计和厚度计算。交通部门在进行路面设计时,一般是根据若干年内几种不同车型的远景交通量来计算的。林业部门的运材公路则不同,它是根据某条公路的年运材量、运材方式和运材车型计算交通量,从而进行路面设计。由于运材方式和运材车型的不同,在路面设计中就产生了即便是相同的运材量,也能得出不同结果的现象。
When designing pavement, you must first obtain the information on the type of transportation vehicles and the corresponding traffic volume, and then pavement structure design and thickness calculation. During the design of the pavement, the traffic department generally calculates the long-term traffic volume of several different models in a number of years. In the forestry department, the transportation roads are different. It calculates the traffic volume according to the annual transportation volume of a highway, the mode of transportation of materials and the type of transportation vehicles, so as to design the pavement. Due to the different ways of transporting materials and transporting materials, different phenomena can be obtained even in the same transportation quantity in the pavement design.