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随着我国高速公路建设的进步,选择高速出行人们越来越多,高速公路的行车舒适度、安全性及耐久性,成为评价高速公路质量问题的重要指标。沙漠地区路面容易出现的问题主要是沥青路面壅包,路面顶起及平整度较差,通过研究发现上述问题追根溯源,主要是水稳结构层在温缩裂缝、毛细裂缝等缝隙在高温和行车荷载等综合作用下导致水稳顶起,从而造成沥青路面产生滑移及壅包。本文从水泥稳定碎石结构层裂缝出现的原因进行分析,通过有效的预防措施水稳结构层的裂缝,在减少高速公路路面病害的同时,为后续相同施工环境下其他路面施工提供借鉴及参考。
With the progress of highway construction in our country, more and more people choose high-speed travel, and the driving comfort, safety and durability of expressways become important indexes to evaluate the quality of expressways. In the desert area, the problems that are easy to appear are mainly the asphalt pavement bag, the top of the pavement and the poor flatness. According to the research, the above problems are traced back to the source. The main problems are that the water- Under the combined action of load and other factors, it leads to the steady water rise, resulting in slippage and slipping of asphalt pavement. This paper analyzes the causes of the cracks in the cement stabilized gravel layer and provides some reference and reference for the construction of other pavements under the same construction environment at the same time reducing the road surface damage of expressway through the effective precautionary measures to crack the water stable structure layer.