摘要
研究了膨胀土的强度指标c,?与含水量ω、干密度γd及饱和度sr的关系,以及强度与膨胀压力p之间的关系,结果表明:c,tan?和γd,sr,ω的关系与膨胀压力p和γd,sr,ω的关系相似;任何状态的膨胀土的强度,皆可表示为饱和状态的强度和吸力引起的,并可用不同状态土的膨胀压力表示的附加强度两部份。
The relationships between strength indexes c, ? and dry density γ d,degree of saturation sr,water content ω, strength and swelling pressure p of expansive soil are researched. The results show that the relationship between c,tan? and γ d, sr, ω are similar to that of between swelling pressure p and γ d, sr, ω;the strength of expansive soil under any state can be represented both by strength under saturated state and addition strength produced by suction; and the latter can be represented by swelling pressure of soil in various states.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2005年第7期1009-1013,共5页
Rock and Soil Mechanics
基金
国家自然科学基金项目(No.19972068)
中国科学院武汉岩土力学研究所知识创新工程项目。
关键词
膨胀土
强度
膨胀压力
干密度
饱和度
含水量
expansive soil
strength
swelling pressure
dry density
saturation degree
water content
