Abstract The paper deals with identification of the soil types deposited in overburden heap and approximation of their arrangement in 3D heap model. The method of segmentation of the soil types based on deconvolution of results of CPTu tests performed in heap, is proposed. Two approaches distinguishing constituents of the soil either based on one or two measured parameters are presented. Employing the deconvolution technique results in identifying the most likely number of constituents, their volume fractions and probability distributions parameters. Using the obtained volume fractions, threshold values, which allow distinguishing constituents in CPTu profile based only on the value of the measurement, are determined. In the next step of analysis, the 3D model of arrangement of the soil types in heap is built. To approximate constituents' boundaries, based on data from profiles with distinguished constituents, a kriging technique is used. The obtained approximations show the arrangement of constituents in quite detailed way. After assigning the values of strength parameters to all constituents, obtained numerical models can be used to analyse stability of heap slope or/and to solve some other problems of geotechnical design, which allows for safe reclamation of the heap.

中文翻译：

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使用解卷积方法和 CPTu 测试结果识别覆盖层中的土壤类型及其排列

摘要 本文研究了沉积在覆土堆中的土壤类型的识别及其在 3D 堆模型中的近似排列。提出了一种基于堆中 CPTu 测试结果反卷积的土壤类型分割方法。提出了两种基于一个或两个测量参数来区分土壤成分的方法。使用解卷积技术可以识别最可能的成分数量、它们的体积分数和概率分布参数。使用获得的体积分数，确定允许仅基于测量值区分 CPTu 分布中的成分的阈值。在下一步的分析中，建立了堆中土壤类型排列的3D模型。近似成分' 边界，基于来自具有不同成分的剖面的数据，使用克里金技术。获得的近似值以非常详细的方式显示了成分的排列。在为所有成分分配强度参数值后，获得的数值模型可用于分析堆边坡的稳定性或/和解决岩土设计的其他一些问题，从而实现堆的安全复垦。