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在公路工程设计准则中,过渡式路面最大和最小横坡规定为4％～3％,高级路面最大和最小横坡为2.5％～1.5％,我们在设计路拱时即按此数据采用。但在过渡式路面,不能满足交通量日益增长的需要时,势必改建为高级、次高级路面。由于两类路面横坡的不一致,改建时必须将过渡式路面的横坡进行调整。调整的方法一般有以下两方面:
In highway engineering design guidelines, the maximum and minimum cross-slope of the transitional road surface is defined as 4% to 3%, the maximum and minimum slope of the advanced road surface is 2.5% to 1.5%, we use this data in the design of the road arch. However, when the transitional pavement fails to meet the growing demand for traffic, it will inevitably be transformed into a high-level and sub-high road surface. Due to the inconsistency between the two types of pavements, it is necessary to adjust the cross-pavements of the transitional pavements. The adjustment method generally has the following two aspects: