铁道标准设计2017，Vol.61Issue(4)：23-27,5.DOI:10.13238/j.issn.1004-2954.2017.04.006
粉细砂土填筑压实技术试验研究
Experimental Study on Compaction Technology of Silty Sand Embankment
摘要
Abstract
Physical and mechanical properties of silty sand and its compaction process are studied through indoor and field tests.The results show that silty sand particles are uniform;the method of increasing unit compaction cannot improve the maximum dry density of silty sand effectively;silty sand is sensitive to higher moisture content, and the optimum moisture content of the right side of is more sensitive than that of the left;the time from compression to stability is short and the rolling process of silty sand is relatively time-saving;increasing compaction pressure to improve silty sand's compactness is not feasible;and the peak of silty sand shear strength increases as the normal pressure increases.This paper also summarizes the technical parameters of compaction with constraints.关键词
粉细砂/颗粒/压实度/有约束碾压Key words
Silty sand/Particle/Compactness/Compaction with constraints分类
交通工程引用本文复制引用
叶朝良,李伟,张梓鸿..粉细砂土填筑压实技术试验研究[J].铁道标准设计,2017,61(4):23-27,5.基金项目
中铁建股份有限公司科技研发课题(2014-C06) （2014-C06）
