【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 ,残余应变发展速率加快更多还原

【Abstract】 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.更多还原