水利水电科技进展2013，Vol.33Issue(1)：62-65,73,5.DOI:10.3880/j.issn.1006-7647.2013.01.014
干湿循环下膨胀土胀缩性能试验
Experimental study on swell-shrinking performance of expansive soil under wetting-drying cycles
摘要
Abstract
The repeated swell-shrinking tests on remolded expansive soils without loads are performed by means of compression apparatus and shrinkage apparatus. The results show that both the final expansion ratio and shrinkage ratio of specimens gradually decrease as wetting-drying cycles increase. The swelling deformation obviously decreases, while the shrinking one slightly decreases. The final height of the specimens has a tendency of decrease. The shrinkage coefficient continuously decreases and finally tends to be stable. The parameters such as absolute expansion ratio, relative expansion ratio, absolute shrinkage ratio and relative shrinkage ratio can rationally depict the swell-shrinking performance of expansive soil under wetting-drying cycles.关键词
膨胀土/胀缩变形/干湿循环/膨胀率/收缩率Key words
expansive soil/ swell-shrinking deformation/ wetting-drying cycle/ expansion ratio/ shrinkage ratio分类
建筑与水利引用本文复制引用
吴珺华,袁俊平,杨松,卢廷浩..干湿循环下膨胀土胀缩性能试验[J].水利水电科技进展,2013,33(1):62-65,73,5.基金项目
南昌航空大学博士启动基金(EA201211115) （EA201211115）
国家自然科学基金(51008117) （51008117）
