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高速公路行车密度大、车速高,为确保行驶车辆的安全和舒适性,对路面平整度的要求很高。部颁《公路沥青路面施工技术规范》(JTJ032-94)要求用连续式平整度仪测定的路面平整度σ≤1.8mm,沪宁高速公路为了创国优,提出了下面层σ≤1.8mm,中面层σ≤1.2mm,上面层σ≤1.0mm的标准要求。由于影响沥青路面平整度的因素很多,对每一个因素的忽视都将对沥青面层最终的平整度产生影响,因此要达到上述标准是有一定难度的。笔者通过对洛三高速公路三门峡段沥青路面的施工实践,从施工角度对影响沥青路面平整度的有关因素作如下分析。
Expressway traffic density, high speed, in order to ensure the safety and comfort of driving vehicles, the road surface roughness requirements. The ministerial “Highway Asphalt Pavement Construction Technical Specifications” (JTJ032-94) requires continuous flatness measured by the road surface roughness σ ≤ 1.8mm, Shanghai-Nanjing Expressway in order to create a country, put forward the following layer σ ≤ 1.8mm, The middle layer σ ≤ 1.2mm, the top layer σ ≤ 1.0mm standard requirements. As many factors affect the smoothness of asphalt pavement, the neglect of each factor will have an impact on the final flatness of asphalt pavement, so to achieve the above criteria is a certain degree of difficulty. Through the construction practice of asphalt pavement in Sanmenxia section of Luo San expressway, the author analyzes the factors that affect the flatness of asphalt pavement from the construction point of view.