摘要
交通部现行的《公路路基设计规范》明确提出了路基不同部位填料的最小强度要求。针对施工中存在不符合规范要求的路基填料现状,为降低工程造价,从提高路基压实度和掺石灰处理两方面试验研究了提高土基承载比的有效途径。结果说明:掺灰可以有效提高承载比,并提出了合理的掺灰率。
The requirements for minimum strength values of embankment materials in different sections are clearly prescribed in the Specifications for Design of Highway Subgrades（JTG D30 2004）. Aiming to avoid the occurrence of violating the requirements of the Specifications in strength for sub--grade, and to lower the engineering cost, the effective ways to improve the CBR values are studied in the paper, by which the author means improving the compactness of the sub grade and mixing lime into the sub grade materials in order to improve the load-bearing capacity of the sub-grade. The result of the experiment shows that mixing lime into the sub grade materials can effectively raise the CBR. The ideal lime-mixing ratio is also suggested in the paper.
出处
《国防交通工程与技术》
2006年第4期61-63,共3页
Traffic Engineering and Technology for National Defence
