贵州省安顺市农村公路沥青混凝土路面改善提升养护技术研究
Research on Maintenance Technologies for Improving and Upgrading Asphalt Concrete Pavements on Rural Roads in Anshun City, Guizhou Province
安顺市全境属于云贵高原东部喀斯特岩溶地貌区，平均海拔为1100~1400m，整体地势西高东低、南北起伏破碎，是贵州 喀斯特发育最完整的区域之一。安顺市农村公路是全市交通网络的毛细血管，支撑全市农村产业运输、群众日常出行，是 新时代全面推进乡村振兴战略的重要载体。受早期建设标准受限、重载农机与货车频繁通行、雨水侵蚀、养护资金投入不 足、公路超期服役、安顺南部片区雨水季节地质灾害频发等多重因素影响，路面普遍产生裂缝、坑槽、沉陷、车辙等病 害，道路安全性与舒适性持续下降。与高速公路、国省干线相比，农村公路存在养护资金有限、专业设备短缺、技术人员 匮乏等现实难题，传统大修方案成本高、施工周期长，难以大范围落地。
The entire territory of Anshun City lies within the eastern Karst region of the Yunnan-Guizhou Plateau, with an average elevation ranging from 1,100 to 1,400 meters. Characterized by a terrain that is higher in the west and lower in the east, with undulating and fragmented topography across north-south directions, it represents one of the most comprehensively developed karst areas in Guizhou Province. Rural roads in Anshun serve as the vital infrastructure of the city’s transportation network, supporting rural industrial logistics and daily travel for residents, and constitute a crucial component of the comprehensive rural revitalization strategy in the new era. However, due to multiple challenges—including limited construction standards in earlier periods, frequent use of heavy agricultural machinery and trucks, rain-induced erosion, insufficient maintenance funding, prolonged road service life, and frequent geological disasters during rainy seasons in southern Anshun—the road surfaces commonly exhibit cracks, potholes, subsidence, and rutting, leading to continuous declines in safety and comfort. Compared to expressways and national/provincial highways, rural roads face practical difficulties such as inadequate maintenance funds, lack of specialized equipment, and shortage of technical personnel; traditional major repair approaches are costly and time-consuming, making large-scale implementation challenging
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