水利水电科技进展Issue(5)：65-68,4.DOI:10.3880/j.issn.1006-7647.2013.05.015
掺砂高液限土加州承载比影响因素试验
Influence factors of California bearing ratio test for high liquid limit soil mixed with sand
摘要
Abstract
In order to determine the improvement scheme of high liquid limit soil along the Yunluo expressway, the particle size distributions of the high liquid limit soil with or without sand were analyzed based on the grain size analysis tests, relative density tests, liquid and plastic limits tests, compaction and indoor California bearing ratio( CBR) tests for different sand proportions. The impact factors with obvious regional features for the bearing ratios of high liquid limit silt mixed with sand and high liquid limit clay were investigated. The influences of sand content and immersion time on the CBR values were summarized and some useful conclusions were drawn in the study. With a greater mass fraction of coarse particles, the friction force and the cohesion force were found to be increased and decreased respectively, and the water sensitivity became poor. The mass fraction of coarse particles is the main impact factor on CBR values, and the immersion time is the secondary.关键词
高液限土/掺砂改良/加州承载比/掺砂量/浸水时间Key words
high liquid limit soil/soil improvement with sand/California bearing ratio/sand content/immersion time分类
建筑与水利引用本文复制引用
卢自立,曹亮宏,程涛..掺砂高液限土加州承载比影响因素试验[J].水利水电科技进展,2013,(5):65-68,4.基金项目
国家自然科学基金(51079052) （51079052）
广东省交通厅基金(200903005) （200903005）
