惠深高速公路改扩建工程路基扩建设计

Design of Subgrade Extension in Huizhou-Shenzhen Super Highway Reconstruction Project

简要介绍了惠深高速公路改扩建工程的总体扩建方案,在对原有路基调查、检测评价的基础上,对一般路基、软土路基、桥头路基的处理方案进行了介绍,针对扩建或拆除新建桥涵构造物台背、现有挡墙防护、征地拆迁难度(成本高)大等施工困难路段,采用气泡混合轻质土设计,可为类似扩建工程设计提供借鉴和参考。

Brief introductioo about the overall expansion plan of the Huizhou - Shenzhen superhighway reconstntetion project. Based on the survey of original roadbed and assessment, introduction about treatment scheme of general subgrade, soft soil subgrade and bridge subgrade has been made. Considering that there are many construction diffieuh roads like expansion or demolition of bridges and culverts structure retailing backwall, existing retaining wall protection, great difficulty of requisition （high cost） , etc, the design of bubble mix light soil is adopted. It can provide experiences and references for design of other similar extension project.