深季冻区公路路基边坡常见病害与技术对策

Common Diseases and Technical Countermeasures of Highway Roadbed Slope in Deep Seasonally Frozen Ground Regions

由于气候和土质原因,黑龙江省深季冻区公路路基边坡经常出现浅层冻融滑塌、坡面冲刷、防护结构变形松散及滑落,既影响公路的整体使用性能和交通观感,又增加养护、维修的难度与工程量。尤其是细粒土路堑边坡,如果采取的防护技术措施针对性不足,会产生年复一年的滑塌。因此,基于寒冷地区公路路基边坡常见病害和对应的防治效果,分析总结针对性的技术对策具有重要意义。

The slope of highway roadbed slope in deep seasonally frozen ground regions in Heilongjiang Province is often subject to shallow freeze-thaw collapse,slope erosion,protective structure deformation,loosening and sliding due to climate and soil quality,not only affecting the overall use performance of the highway and traffic impressions,but also increasing the difficulty of curing and maintenance and the work amount.Especially for the fine-grained soil cutting slope,not enough targeted protective technology measures will lead to slump year after year.Hence,analyzing and summarizing the targeted technical countermeasures on the basis of the common diseases of highway roadbed slope in cold regions and the corresponding protective effects are of great importance.