DEM modelling of a rotary CPT
DEM modelling of a rotary CPT
The cone penetration test (CPT) is popularly used for in-situ soil characterization. CPT penetrability is often limited in soils with high resistance, e.g., dense sands and dry loess. Experiments have shown that rotation can reduce tip penetration resistance and can thus facilitate penetration. Recently, a rotary CPT device with increased penetrability has been developed in China and put into practice. This study uses discrete element method-based numerical models to investigate the effects of confining stress, density and rotation on penetration resistance. The results are validated against theoretical derivations.
Xiaotong Yang; Ningning Zhang; Rui Wang; Jian-Min Zhang; Raul Fuentes; Wengang Zhang
10th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE2023)
2. Finite element, finite difference, discrete element, material point and other methods
https://doi.org/10.53243/NUMGE2023-316
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