太原理工大学学报2025，Vol.56Issue(5)：916-923,8.DOI:10.16355/j.tyut.1007-9432.20240629
含水量对黄土状粉土击实冲击力传递的影响研究
Study on the Influence of Water Content on Compaction Impact Force Transfer of Loess Silt
摘要
Abstract
[Purposes]Loess area is widely distributed in China,and the effective use of compac-tion energy is an important factor to control the engineering quality after remolding of loose soil.[Methods]In order to find out the specific law of energy transfer in the process of soil compaction,laboratory standard heavy compaction tests were carried out on loessial silt in a certain area,and com-paction impact forces were measured by the"Stress test system in soil during compaction",and the laws of compaction impact force transfer under different water content conditions were compared and analyzed.[Results]The analyses show that the remolding process of loose soil is a dynamic consolida-tion process,and the action time is very short.The impact loading rate is affected by particle continu-ity.The closer the contact of soil particles is,the higher the loading rate is.The impact force increases with the increase of compaction times,basically in the form of exponential function,when the soil tends to be dense,the impact force reaches the peak.Water content has a significant effect on impact force transmission.The optimal water content and its dry side can effectively transfer the impact force.When the water content exceeds the optimal water content,the ultra-high pore water pressure will off-set the compaction impact force,resulting in energy waste.Therefore,the compaction water content should be strictly controlled in fill projects to avoid unnecessary economic waste.关键词
黄土状粉土/击实试验/冲击力/含水量Key words
loess silt/compaction test/impact force/water content分类
建筑与水利引用本文复制引用
李婕,马富丽,白晓红,郭玉珠..含水量对黄土状粉土击实冲击力传递的影响研究[J].太原理工大学学报,2025,56(5):916-923,8.基金项目
国家自然科学基金资助项目(51178287) （51178287）
太原科技大学博士科研启动金(20212067) （20212067）
来晋工作优秀博士奖励资金(20222143) （20222143）
