路基工程Issue(4)：97-100,4.DOI:10.13379/j.issn.1003-8825.2017.04.19
掺砂砾改良盐渍土路用性能的试验研究
Experimental Study on Pavement Performance of Improved Saline Soil Mixed with Gravel
陈中秋 1黄骤屹 1尹利华2
作者信息
- 1. 中交云南高速公路发展有限公司,昆明650500
- 2. 中交第一公路勘察设计研究院有限公司,西安710068
- 折叠
摘要
Abstract
By mixing 1:1 gravel with sulphate saline soil of Xining south ring expressway,it analyzed the microstructure of saline soil before and after the improvement and analyzed the compaction effect of the improved weak saline soil by vibrating compaction and heavy compaction.The results show that sand gravel can effectively improve the grading of saline soil and increase the friction between the particles,greatly increasing the soil shear strength and enhancing the structure of soil at the same time;the obtained dry density of weak saline soil with vibrating compaction method is greater than that with heavy compaction method,with better compaction effect.In the project,we should use vibrating compaction method to determine the interior maximum dry density of saline soil.关键词
盐渍土/砂砾改良/压实特性/振动压实/重型击实/微观结构Key words
saline soil/gravel improvement/compaction characteristics/vibrating compaction/heavy compaction/microstructure分类
交通工程引用本文复制引用
陈中秋,黄骤屹,尹利华..掺砂砾改良盐渍土路用性能的试验研究[J].路基工程,2017,(4):97-100,4.
