桥台背路基沉陷是公路建设中最常见的病害之一。随着我国高等级公路建设的发展,桥台背路基沉陷病害越来越受到公路建设者的关注,是当前高等级公路建设中遇到的主要技术难题之一。文章结合全兴高速公路桥台背路基沉陷的防治措施和该工程施工后使用情况的调查资料,对桥台背路基沉陷病害原因及防治措施进行了探讨。 Abutment subgrade settlement is one of the most common diseases in highway construction. With the development of high-grade highway construction in our country, the subsidence disease of abutment subgrade is more and more concerned by road builders, which is one of the major technical problems in the construction of high-grade highways at present. Combining with the prevention and control measures of subgrade settlement of abutment in Quanxing Expressway and the investigation data after the construction, the causes and prevention measures of subgrade settlement of abutment in abutment are discussed.