西北某铁路风积粉细砂路基填料改良试验研究  

Experimental Study on Improvement of Filling Material for Aeolian Silt Roadbed of a Railway in Northwest China

作　　者：赵尔升 陈伟 夏叶斌 

机构地区：[1]兰州交通大学土木工程学院,甘肃 兰州

出　　处：《土木工程》2021年第1期67-74,共8页Hans Journal of Civil Engineering

摘　　要：根据西北某铁路路基填料压实困难,制定改良方案。通过室内进行含水率试验、击实试验、无侧限抗压强度试验试验,结合试验结果在现场做试验段,对风积粉细砂路段路基填料改良前后的性质分析对比。研究表明,现场试验段碾压后测定的改良后各项指标较改良前有所提升。该研究成果对西北其他地区铁路风积粉细砂路基填料改良具有一定指导意义。According to the difficulty of filling compaction of a railway subgrade in the northwest, an improvement plan was developed. Through indoor water content test, boundary water content test, compaction test, unconfined compressive strength test, combined with the test results in the field test section, the properties of the aeolian silt fine sand road subgrade filling before and after improvement were analyzed and compared. Studies have shown that the improved indicators measured after rolling in the field test section have improved compared with those before the improvement. The research results have certain guiding significance for the improvement of railway aeolian silt subgrade filling in other areas in the northwest.

关 键 词：铁路路基 填料改良 室内试验 现场试验 对比分析 

分 类 号：U41[交通运输工程—道路与铁道工程]