应用全寿命分析法研究高速公路沥青路面结构

针对目前我国高速公路路面普遍存在的早期损坏现象，以及使用寿命短、建设维护和重建成本高等问题，依托交通量及重车比例大、超载严重的深圳南光高速公路，为提高路面使用寿命，采用全寿命分析法进行路面结构设计方案研究:根据国内外路面发展状况及广东省高速公路的成功经验，提出了七种结构设计方案进行比较分析。根据分析结果与项目投资实情，选择了基层寿命较长、沥青面层较薄的强基薄面半刚性基层作为设计方案。

Study on Expressway Asphalt Pavement Structure with Life Cycle Analysis

For early-stage damage that commonly exists on expressway pavement as well as short service life,high cost in construction,maintenance and rebuilding in China,citing the example of heavy traffic,large ratio of heavily loaded vehicle and serious overload on Shenzhen Nanguang Expressway,pavement structural design program is studied based on life cycle analysis to improve pavement service life.According to pavement development at home and abroad and successful experience in Guangdong expressway,seven structural design programs are put forward for comparison.Based on analysis result and actual investment,strong-base thin-face semi-rigid foundation of longer life and thinner asphalt pavement is chosen as the design program.