南京工业大学学报（自然科学版）2017，Vol.39Issue(4)：118-123,6.DOI:10.3969/j.issn.1671-7627.2017.04.019
基于吸应力的非饱和土抗剪强度试验研究
Experimental study on shear strength of unsaturated soils based on matric suction
摘要
Abstract
All soils above the underground water level is the unsaturated soil,it makes great significance for engineering practice to study the effect of moisture content of soil on the shear strength. Choosing the unconsolidated clay soils as the research object, the effect on shear strength that resulted from matric suction,suction stress, moisture content was analyzed. The soil samples under different moistures and gradations were made by controlling clay content and applying the soil pore pressure dewatering. The test results showed that shear strength of unsaturated soil largely depended on the degree that soil matric suction changed into the effective cohesion c′,or the conversion rate that the matric suction transformed into suction stress.关键词
非饱和土/抗剪强度/含水率/颗粒级配/基质吸力/吸应力Key words
unsaturated soil/shear strength/moisture content/gradation of grain/matric suction/suction stress分类
建筑与水利引用本文复制引用
王斯海,王旭东,李宇晗..基于吸应力的非饱和土抗剪强度试验研究[J].南京工业大学学报（自然科学版）,2017,39(4):118-123,6.基金项目
中央级公益性科研院所基本科研业务费重点基金( Y316018) （ Y316018）
南通市科技计划( GY12016011) （ GY12016011）
