摘要
文中对重塑的粉土试样施加正弦波和任意波轴向荷载,进行应变控制的动三轴试验。根据试验结果,分析和比较2种不同波形振动荷载下粉土的动强度和变形特性。研究结果表明:固结条件相同,振动频率为1Hz,任意波振动荷载作用下粉土的动强度较正弦波下的稍小;任意波下粉土试样产生的动应变比正弦波下的大。
By setting axial load of sine and arbitrary waves on the remodeling silt samples,strain-controlled dynamic triaxial tests are conducted to study the dynamic strength and strain of the silt under vibrating loads with two different waveforms.The test results indicate that in the case of the same consolidation conditions and the vibration frequency of 1 Hz,the dynamic strength of silt under arbitrary wave is smaller than that under sine wave,and the dynamic strain of silt under arbitrary wave is contrary to that under sine wave.
出处
《世界地震工程》
CSCD
北大核心
2010年第S1期51-53,共3页
World Earthquake Engineering
关键词
粉土
动三轴试验
动强度
动应变
silt
dynamic triaxial test
dynamic strength
dynamic strain
