Research on the Dynamic Deformation Characteristics of Tailings Silt in Zhuziqing Tailings Dam

Abstract:

In this paper, it has been studied that types and mechanical properties of tailings silt in Zhuziqing tailings dam based on the Zhuziqing tailings’ deposition characteristics, particles size distribution test, physical and mechanical properties test. Then it has been studied subsequently by the dynamic triaxial test, wave velocity test and standard penetration test for tailings silt that the dynamic characteristics, dynamic strength and vibration liquefaction of the tailing silt. Results show that the tailings silt in tailings pond is graded well. Under the condition of isotropic or anisotropic consolidation, dynamic shear modulus of tailings silt increase as the dynamic shear strain decreasing and increase as the increase of confining pressure or consolidation ratio. But the variation law on damping ratio of tailings silt is just opposite to that of dynamic shear modulus. Results also show that there is more liquefied possibility over the seventh sub-dam in the tailings dam, and the liquefied possibility position locates at the place from new sub-dam to deposited beach in tailing pond.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 459-465
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.459
• Online since: May 2012
• Authors: Jian Bin Xie, Wen Lian Liu, Lin Hua Shi, Guo Hai Zhang, Jie Zhang
• Keywords: Dynamic Deformation Characteristics, Liquefaction, Tailing Dam, Tailings Silt

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