英国标准BS 1377与中国标准在铁路路基压实试验中的异同  

British Standard BS 1377 and Chinese Standard in Similarities and Differences in Compaction Test of Railway Subgrade

作　　者：苏昕 李祝文 刘朝晖 王永红 吴清强 SU Xin;LI Zhu-wen;LIU Zhao-hui;WANG Yong-hong;WU Qing-qiang(China Communications Construction(ECRL) SDN BHD,Kuala Lumpur 50480,Malaysia;CCCC Wuhan Harbor Engineering Design and Research Institute Co,Ltd,Wuhan 430040,China;Hubei Key Laboratory of Advanced Materials & Reinforcement Technology Research for Marine Environment Structures,Wuhan 430040,China)

机构地区：[1]中国交建马来西亚东海岸铁路项目总经理部,吉隆坡50480 [2]中交武汉港湾工程设计研究院有限公司,武汉430040 [3]海工结构新材料及维护加固技术湖北省重点实验室,武汉430040

出　　处：《建材世界》2021年第2期61-64,共4页The World of Building Materials

摘　　要：对比了中国铁路标准和英国标准在铁路路基压实度、CBR(加州承载比)试验的异同点,分析了EVD(动态变形模量)试验与压实度和CBR试验之间的相关性。铁路标准根据填料粒径及测试层厚度选择压实度仪器,英国标准仅考虑层厚;铁路标准提供的CBR指标是一种等价于最优含水率的理想状态,英国标准则依据现场压实度进行选择;英国标准未涉及EVD试验,铁路标准在特殊路段有相关要求,但不同压实度下EVD和CBR值存在近似的线性关系。The similarities and differences between Chinese railway standard and British standard in railway subgrade compaction degree and CBR(California Bearing Ratio)test were compared,and the correlation between EVD(Dynamic deformation modulus)test and compaction degree and CBR test was analyzed.The railway standard selected the compaction instrument according to the packing particle size and the thickness of the test layer,while the British standard only considered the thickness of the layer.The CBR index provided by the railway standard was an ideal state equivalent to the optimal moisture content,while the British standard selected it according to the compaction degree on site.There was an approximate linear relationship between EVD and CBR values under different compaction degrees.

关 键 词：压实度 CBR试验 EVD试验 标准规范 

分 类 号：R28[医药卫生—中药学]