现场CBR检测技术的运用及注意事项浅析

CBR又称加州承载比,是California Bearing Ratio的缩写,由美国加利福尼亚州公路局首先提出,用于评定路基土和路面材料的强度指标,对路基填筑材料合理的选择具有重要的参考意义。为了进一步积累经验用于实践,以促进国际学术交流,参考了国内外的情况,我国将CBR指标列入《公路路基设计规范》和《公路路基施工技术规范》,作为路基填料选择的依据。本文通过对现场CBR检测技术的实施步骤及注意事项分析,从而使CBR试验能更好的运用于工程实践。

Application of Spot CBR Inspecting Technology and Analysis of Instructions

CBR is the abbreviation California Bearing Ratio. It was first proposed by the American California Highway Bureau. It is used to assess the intensity index of subgrades soil and paving materials. It has referential significance to choose the subgrades filling material appropriately. In order to accumulate experience further in practical use to promote international academic exchanges, considering the conditions both from home and abroad, our country has put CBR index into Specification for design of highway subgrades and Specification for construction technique of highway subgradess as the basis for choosing the subgrades filling material. This paper analyzes the implementation process and instructions of spot CBR inspecting technology to ensure the CBR experiment could be applied to engineering practice.