摘要
利用改进后的三轴试验仪,运用轴平移技术,通过试验研究了吸力对非饱和膨胀土强度特性的影响.试验表明,强度参数φb随吸力变化而变化,两者有一定的相关关系.在此基础上对非饱和土强度理论公式和有效应力公式进行了修正.
By use of the improved triaxial experiment instrument and the axis translation technique, an experimental study is performed of the effect of suction force on the strength characteristics of expansive soil. The results show that the strength parameter φ b varies with the suction force, and a correlative relationship exists between the two factors. Then, the theoretic strength formula and effective stress formula for unsaturated soil are modified.
出处
《水利水电科技进展》
CSCD
2003年第5期11-13,共3页
Advances in Science and Technology of Water Resources
关键词
非饱和土强度
吸力
理论公式修正
三轴试验仪
strength of unsaturated soil
suction force
modification of theoretic formula
triaxial experiment instrument
