公路施工中水稳基层裂缝的防治措施.docVIP

PAGE  PAGE 9 公路施工中水稳基层裂缝的防治措施 　　摘要：在我国经济快速发展的背景下，我国的城市化得到了不断地发展，从而城市道路建设得到了进一步发展。由于城市车辆数量的剧增，给城市的交通运输带来了沉重的压力，从而城市道路也出现了病害问题。水泥稳定碎石施工技术具有较强的稳定性和强度，并且所使用的原材料较为普遍，所以，在进行城市道路施工的过程中，水泥稳定碎石技术得到了广泛的应用，这样以来确保了道路的稳定性和安全性，提高了道路施工的质量。然而由于水泥稳定碎石基层的结构特点使其容易产生裂缝进而反射到沥青路面产生反射裂缝影响交通安全，本文重点介绍水泥稳定碎石基层的施工技术、裂缝产生原因及抗裂缝措施，并结合案例阐述使用硬质岩碎石材料来提高公路基层强度降低裂缝产生的经验，希望能为同类工程提供参考提高工程质量，减少保养成本，提高企业效益。 　　Abstract： Under the background of rapid economic development in China， urbanization has been continuously developed， and the urban road construction has been further developed. Due to the rapid increase in the number of urban vehicles， urban transport has been facing heavy pressure， and urban road diseases have also appeared. Cement stabilized gravel construction technology has strong stability and strength， and the raw materials are more common， so in the process of urban road construction， cement stabilized gravel technology has been widely used， so as to ensure the stability and safety of the road， and improve the quality of road construction. However， due to the structural characteristics of the cement stabilized macadam base， it is easy to produce cracks and then reflected to the asphalt pavement to produce reflection cracks. This paper focuses on the construction technology of cement stabilized macadam base， the causes of cracks and anti-crack measures. The experience of using the hard rock and gravel material to improve the strength of the road base and reduce the crack is expounded. It is hoped that it can provide reference for the similar project to improve the project quality， reduce the maintenance cost and improve the enterprise benefit. 　　?P键词：水泥稳定碎石基层；裂缝；硬质岩碎石 　　Key words： cement stabilized macadam base；fracture；hard rock and gravel 　　中图分类号：U418.6 文献标识码：A 文章编号：1006-4311（2017）05-0160-03 　　0 引言 　　随着我国经济的飞速发展，交通运输量日益增加，车辆承载力也随之增加，这无疑对道路标准提出了更高的要求。面对这种形势，越来越多公路道路基层中开始引入水泥稳定碎石，且实践表明，水泥稳定碎石作为一种半刚性材料，在基层施工中表现出了良好的整体性、耐久性、抗冻性、稳定性及力学性能等，除此之外，其还能够具有与面层良好结合、承载力高等技术特点，且能够就地取材，料源广泛。