软土地基上高速公路扩建的沉降变形规律分析

摘要

通过选取代表性断面,对南京绕城公路扩建工程不同处理方式下的新老地基变形规律进行了分析,分析表明,扩建工程的路基的沉降变形规律不同于新建工程,为扩建工程的设计和施工提供了科学依据。%By selecting the representative sections,the paper analyzes the deformation foundation rules of the old and new foundations in various treatment ways in belt road of Nanjing,and proves the settlement and deformation rules of the foundation in the expansion projects are different from the newly-built projects,so as to provide the reference for the design and construction of the expansion projects.