摘要
针对十天高速沿线遇到的大量不满足路基填筑要求的泥质千枚岩,分别采用7种改良方案进行室内对比试验研究,比较了不同掺灰量、不同龄期改良土的无侧限抗压强度,通过击实试验,确定最佳含水量和最大干密度,并进一步分析了CBR值的主要影响因素,从而确定一个最佳的改良方案,为此类风化料填筑高速公路路基的设计和施工控制方法提供理论和试验依据。
According to a lot of shale phyllite which did not meet the roadbed filling requirement of Shitian highway along, respectively made in- door experimental research using 7 improved schemes, compared unconfined compressive strength of different lime content, different age im- proved soil, by the compaction test, determined the optimum water content and maximum dry density, and further analyzed the main influencing factors of CBR value, thereby determine an optimal improved solution, provided theoretical and experimental basis for design and construction control methods of similar weathered rock highway subgrade.
出处
《山西建筑》
2013年第1期54-55,共2页
Shanxi Architecture
关键词
千枚岩
改良土
击实试验
无侧限抗压强度
phyllite, improved soil, compaction test, unconfined compressive strength
