乌鲁木齐低液限粉性土击实试验影响因素分析  

Analysis on Influencing Factors of Compaction Test of Low Liquid Limit Silty Soil in Urumchi Area

作　　者：冉武平[1] 王素英[1] 黑学真[1] 

机构地区：[1]新疆大学,乌鲁木齐830008

出　　处：《路基工程》2011年第1期16-18,共3页Subgrade Engineering

基　　金：国家自然科学基金项目(50768010);国家大学生创新性实验计划(081075513);新疆大学自然基金项目(xy080136)

摘　　要：通过乌鲁木齐低液限粉性土的击实试验研究,阐述了土样制备方法及含水量和击实功对干密度的影响,建议按具体情况确定经济击实功。讨论了击实筒余土高度的变化对击实试验结果的影响,并提出击实过程中最后一层土按余土高度为4 mm估算,通过修正余土高度的影响,减小试验误差。Through study on compaction of low liquid silty soil in Urumchi area, this paper describes soil preparation method and the influence of moisture content and compaction work on dry density. It suggests that economical compaction work shall be determined based on difference situations. In this paper, the influence of the changes of residual soil height in compaction drum on compaction result is discussed. The last layer of soil shall be estimated at 4 mm during compaction to reduce test errors through correction of the influence of residual soil height.

关 键 词：击实试验 影响因素 最大干密度 最佳含水量 经济击实功 

分 类 号：U412.222[交通运输工程—道路与铁道工程]