摘要
利用空心圆柱动扭剪仪研究初始主应力偏转角α0 对一种砂砾料动强度、残余应变发展的影响。试验结果表明初始主应力偏转角α0 对土的动强度、残余孔隙水压力及残余应变的发展都具有不可忽视的重要影响。随着α0 的增大 ,动强度明显降低 ,残余孔隙水压力减小 。
In this paper,a series of tests on Miyun sand-gravel specimens using a hollow cylinder torsional shear apparatus have been carried out to investigate the effect of α 0(the inital rotation angle of principal stress),p 0(average principal stress)and η 0 (stress ratio )on dynamic strength and pore pressure. The test results show that α 0 has important effects on the dynamic properties of soil. With the increase of α 0,dynamic strength decreases markedly.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2000年第4期435-440,共6页
Chinese Journal of Geotechnical Engineering
关键词
主应力偏转角
砂砾料
动力特性
动强度
残余应变
angle of principal stress rotation,dynamic strength,hollow cylinder torsional shear apparatus,residual pore pressure,residual strain
