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Analysis of Internal Stability of Widely Graded Soils Based on Identification of Mobile Particles

机译:基于流动颗粒识别的宽梯度土内部稳定性分析

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This paper illustrates an approach for analyzing the internal stability of widely graded soils using a statistical methodrnfor identifying the mobile particles and considering geometrical filtration response. The separation of the soil into tworncomponents, supporting skeleton and mobile particles, can be used to define a filter-base-combination and therefore tornassess the geometrical filtration response of widely gap graded soils. The statistical analysis which was validated withrnexperimental information was used to derive the separation point of particle size distribution of gap and widely gradedrnsoils. After identifying the range of mobile particles and considering the filter-base-combination, the internal stability ofrnthis soil was analyzed with the Terzaghi geometrical filtration criterion. In order to have a comparison with otherrnbroadly used methods 20 particle size distributions from the literature were chosen. They were analyzed to investigaternthe suitability and validity of this new approach.
机译:本文阐述了一种使用统计方法来分析宽梯度土壤的内部稳定性的方法,该方法可用于识别可移动颗粒并考虑几何过滤响应。将土壤分为支撑骨架和活动颗粒的两种成分可用于定义过滤器-基体组合,因此可对间隙宽的梯度土壤的几何过滤响应进行撕裂评估。利用实验信息对统计分析进行验证,得出间隙和宽梯度土粒径分布的分离点。在确定了可移动颗粒的范围并考虑了滤料-基料的组合之后,根据Terzaghi几何滤料标准对这种土壤的内部稳定性进行了分析。为了与其他广泛使用的方法进行比较,从文献中选择了20种粒径分布。他们进行了分析,以调查这种新方法的适用性和有效性。

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