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high tailing dam
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     Earthquake Response and Liquefaction Analysis of High Tailing Dam by Various Methods
     尾矿高堆坝地震反应的综合分析与液化计算
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     In this paper, three methods are used to analyse the behaviour of No. 4 De Shen high tailing dam of height 186m under earthquake loading.
     本文采用了三种方法对德兴铜矿4号尾矿高堆坝(坝高186米)进行了地震反应的综合分析与液化计算。
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  相似匹配句对
     DYNAMIC ANALYSIS OF HIGH TAILING DAMS
     尾矿高堆坝的动力分析
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     EFFECT OF COPPER TAILING ON HIGH-TEMPERATURE OF CLINKERING
     铜尾矿对熟料烧成高温液相的影响
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     Strength and Deformation Characteristics of Tailing Under High Pressure
     高压力下尾矿砂的强度与变形特性
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     High accuracy;
     Ⅱ、精度高;
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     High efficiency;
     系统处理效率高,并发可控性高;
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In this paper, the strength and deformation characteristics of tailing under high pressure were studied with triaxial tests on three kinds of tailing. It was found that the amount of the grains broke increased with the shear strain and confining pressure, independent of the initial density of the specimen. The shape of Mohr envelops under high pressure was somewhat curved. The internal friction angle in the range of testing confining pressure (below 70 kg/cm2) was less than that under...

In this paper, the strength and deformation characteristics of tailing under high pressure were studied with triaxial tests on three kinds of tailing. It was found that the amount of the grains broke increased with the shear strain and confining pressure, independent of the initial density of the specimen. The shape of Mohr envelops under high pressure was somewhat curved. The internal friction angle in the range of testing confining pressure (below 70 kg/cm2) was less than that under the normal confining pressure (below 10kg/cm2) by 8°~ 13° which is smaller than that of sand in the same conditions. Therefore, in the analysis of the stability and deformation of high tailing dams, it is necessary to take account of this effect and to compute shear strength, tangent modulus and tangent Poisson's ratio according to the results of the experiment.In this paper, the tangent modulus and the tangent Poisson's ratio computed with internal friction angle under convenient pressure and with non-linear variability of strength under high pressure were compared. The result shows that the tangent Poisson's ratio computed with the relationship proposed by Daniel is in conformity with the testing data, but the value obtained by assuming the relationship between the axial strain and lateral strain as hyperbola differs from the testing data.

本文通过三种尾矿砂的三轴剪力试验对尾矿砂在高压力下的变形与强度特性进行了研究。试验表明,颗粒破坏的数量随着剪切变形和侧限压力的增大而增多,与试样的初始密度却无直接关系。在高压力下摩尔包线的形状稍弯曲,在本文试验的压力范围内(侧限压力小于70kg/cm~2),内摩擦角比在通常试验的压力下(侧限压力小于10kg/cm~2),可减小达8°~13°,比砂土在同样条件下减小得多一些。因此在进行尾矿坝稳定与变形分析时,都应考虑这种影响,即根据高压力下的试验结果,计算尾矿砂的抗剪强度、切线模量与切线油松比。文中对用低压力下内摩擦角所算得的切线模量、切线泊松比和考虑高压力下强度非线性变化计算的数值进行了比较。试验还表明,高压力下的切线泊松比,用但尼尔建议的方法进行计算与实测资料相符,用轴向应变与侧向应变为双曲线关系的假设进行计算则相差较大。

In this paper, three methods are used to analyse the behaviour of No.4 De Shen high tailing dam of height 186m under earthquake loading.These methods are as follows: total stress dynamic analysis, effective stress dynamic analysis without drainage and effective stress dynamic analysis with drainage, i. e. with consideration of diffusion and dissipation of seis mic pore water pressure. In these analyses, the static and dynamic nonlinear material properties are taken into account.Two bed rock accelerograms...

In this paper, three methods are used to analyse the behaviour of No.4 De Shen high tailing dam of height 186m under earthquake loading.These methods are as follows: total stress dynamic analysis, effective stress dynamic analysis without drainage and effective stress dynamic analysis with drainage, i. e. with consideration of diffusion and dissipation of seis mic pore water pressure. In these analyses, the static and dynamic nonlinear material properties are taken into account.Two bed rock accelerograms with peak acceleration 0. 2g and 0. 4g ( g-gravity acceleration ) are used for each method.Based on these analyses, the stability of dam under static and/or earthquake loading of intensity Ⅷ and Ⅸ are evaluated.

本文采用了三种方法对德兴铜矿4号尾矿高堆坝(坝高186米)进行了地震反应的综合分析与液化计算。这三种方法是:总应力动力反应分析,不排水有效应力动力反应分析,排水(考虑孔隙水压力消散和扩散)有效应力动力反应分析。在分析中都考虑了尾矿材料的静力非线性和动力非线性。通过三种方法的综合分析,对该坝的静力稳定性以及在8度和9度地震运动下的抗液化稳定程度作出了评价。

The paper describes the occurance, spread and dismission of pore water pressure under the loads of earthquakes and the dynamic stability analysis of high tailing dams in seismic areas.

本文介绍尾矿坝在地震荷载下,饱和尾矿孔隙水压的发生、扩散及消散作用,以及地震区尾矿高坝的动力稳定分析。

 
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