分享一篇论文,关于黄土动剪切模量和阻尼比的,里面有比较详细的试验部分的介绍。
题目:
Effects of initial deviatoric stress ratios on dynamic shear modulus and damping ratio of undisturbed loess in China
作者及单位:
Zhi-jie Wang a,b,⁎, Ya-sheng Luo a, Hong Guo a,c, Hong Tian b
a College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling 712100, China
b Institute of Geotechnical Engineering, RWTH Aachen University, Aachen 52074, Germany
c Department of Civil and Environmental Engineering, Worcester Polytechnic Institute, Worcester 01609, USA
摘要:
The foundation soil masses are always in complex initial stress states. However, the traditional study did not take account of the effects of complex initial stress state parameters on the dynamic characteristic parameters of structural loess. This study investigated the influences of initial deviatoric stress ratios, one of the complex initial stress state parameters, on dynamic shear modulus and damping ratio of undisturbed loess in China through laboratory testing. The results show that the effects of initial deviatoric stress ratios on the dynamic shear stress and strain relations are significant. In addition, the dynamic shear modulus and damping ratio are also influenced by the initial deviatoric stress ratios. The capacities of resisting shear deformations of undisturbed loess under high initial deviatoric stress ratios are weak, while the capacities of consuming dynamic energies are strong. The anti-seismic design and dynamic response analysis of practical engineering projects should take into consideration the effects of initial deviatoric stress ratios.
关键词:
Undisturbed loess
Initial deviatoric stress ratio
Dynamic shear modulus
Damping ratio
Experimental study
Initial deviatoric stress ratios [Eng Geology].pdf (1177 K) 下载次数:54