[1]WEI Lianyu,LI Hui,DONG Liying,et al.Study on Experiment of Dynamic Shear Module and Damping Ration of Loess in Chengde of Hebei[J].Journal of Seismological Research,2016,39(03):513-518.
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Study on Experiment of Dynamic Shear Module and Damping Ration of Loess in Chengde of Hebei
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
39
Number of periods:
2016 03
Page number:
513-518
Column:
Public date:
2016-07-23
- Title:
- Study on Experiment of Dynamic Shear Module and Damping Ration of Loess in Chengde of Hebei
- Keywords:
- Chengdo in Hebei; loess; dynamic triaxial test; dynamic shear module; damping ratio; moisture content; dry density
- CLC:
- TU411
- DOI:
- -
- Abstract:
- In order to study the dynamic characteristic of loess in Chengde of Hebei, we performed the dynamic triaxial test on subgrade loess, and obtained the variation laws of dynamic shear modulus and damping ration of loess in Chengde. The results show that the dynamic shear modulus increases with the increase of dry density and the decrease of moisture content. The larger the dry density is, the decrease amplitude of maximum dynamic shear modulus is larger with increase of moisture content. The higher the moisture content is, the increase amplitude of maximum dynamic shear modulus is smaller with increase of moisture content. The damping ratios increase with the increase of dynamic shear strain, it could be regressed by the formula suggested by this paper, and the fitting result is in good agreement. Under the same conditions, the maximum dynamic shear modulus of loess in Chengde is much smaller than that in central and western regions, and the increase rate of damping ration of loess in Chengde is larger than that in central and western regions.
- References:
- -
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Last Update:
1900-01-01