震后黄土动力学特性试验研究

Experimental study on the dynamic characteristics of post-earthquake loess

摘要: 为了研究地震区震后黄土的动力性质,为黄土地区灾后重建提供合理可靠的地震安全性评价参数,本文通过对甘肃省永登地震区震后黄土的动力特性试验研究,探讨了震后黄土的土动力学特性,研究结果表明,震后黄土在动荷载作用下的动力学性质与该地区原状黄土的动力学性质有较大的差异,主要表现在动弹性模量地降低和残余变形(震陷)的明显增大特性。

Abstract: The paper studies on the dynamic characteristics of post-earthquake loess for supplying reasonable and reliable parameters of seismic safety evaluation for post-disaster reconstruction in loess area.Through the experimental study on dynamic characteristics of post-earthquake loess in Yongdeng,Gansu Province,the paper discusses on the dynamic characteristics,and the results indicate that there are enormous differences in dynamic characteristics between under dynamic load post-earthquake and the u...