三维离散元土石混合体随机计算模型及单向加载试验数值模拟 English Version
Stochastic model and numerical simulation of uniaxial loading test for rock and soil blending by 3D - DEM
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摘要: 针对土石混合体提出了一种随机计算模型。在该模型中,可以模拟土石混合比、块石尺寸、块石形状等。给出了随机模型的实现方法,同时对该随机模型的算法可靠性进行了验证。通过统计分析的方法研究了单轴受压情况下土石混合体内部应力场分布与土石配比、岩石块度大小等因素的关系。并进一步给出了土石混合体的应力-应变特性和强度特性。Abstract: This paper presents a stochastic model for rock and soil blending. In the model, the blending ratio, rock size and rock shape can be simulated. The implementation approach of stochastic model is presented. The algorithmic reliability of stochastic model is revealed. Through the statistic analysis, the influence factors on the distribution of stress field in the blending of rock and soil under uniaxial compression are examined, such as the ratio of the blending of rock and soil, the rock size etc. Moreover, the constitutive relation and the strength of rock and soil blending are studied.
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Keywords:
- stochastic model /
- rock and soil blending statistical analysis /
- DEM /
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