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

机译:朱子清尾矿坝尾矿淤泥动态变形特性研究

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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.
机译:在本文中,已经研究了类型和尾矿的机械性能在朱自清尾矿淤基于所述朱自清尾矿沉积特性,颗粒尺寸分布测试,物理和机械性能试验水坝。然后,它已被随后由动态三轴试验,波速测试和标准渗透试验尾矿淤研究了动态特性,动态强度和振动液化拖尾淤泥。结果表明,在尾矿库淤积的尾矿分级很好。下各向同性或各向异性固结的条件下,尾矿的动态剪切模量增加淤泥作为动态剪切应变减少而增加,因为围压或固结比的增加。但上阻尼尾矿淤泥的比的变化规律只是相反动态剪切模量的。结果还显示,有更多的液化了的尾矿坝第七子坝的可能性,并在从新子坝的地方沉积海滩尾矿库的液化可能性所处的位置。

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