Energy balance analyses during Standard Penetration Tests in a virtual calibration chamber

Zhang, Ningning; Arroyo, Marcos; Ciantia, Matteo Oryem; Gens, Antonio

doi:10.1016/j.compgeo.2021.104040

Cited by 13 publications

(2 citation statements)

References 39 publications

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“…It may offer a basis for further development of incorporating water into the consideration for more realistic simulation of practical slope stability analysis. The second paper, Zhang et al, (2021), addresses a practically important problem of standard penetration tests in geotechnical engineering. They employed DEM to simulate a virtual calibration chamber with rods to replicate the standard penetration test in sand.…”

Section: Figure 1: Data Publication Of Dem-related Papersmentioning

confidence: 99%

Use of DEM in geomechanics: Special issue associated with the DEM 8 conference

O’Sullivan¹,

Cheng²,

Zhao

2021

Computers and Geotechnics

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Section: Figure 1: Data Publication Of Dem-related Papersmentioning

confidence: 99%

Use of DEM in geomechanics: Special issue associated with the DEM 8 conference

O’Sullivan¹,

Cheng²,

Zhao

2021

Computers and Geotechnics

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“…To date widespread use of DEM has been limited in a commercial setting due to the computational time required but recent developments have reduced this time including faster sample preparation (Ciantia et al, 2018) coupled with lower cost higher performance computing. This has resulted in an increase in DEM application to analyse boundary value problems at model (Boschi et al, 2020;Nguyen et al, 2020;Zhang et al, 2021) and field scale (Boon et al, 2014;Previtali et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Using discrete-element method hindcasting of screw pile performance for practical design

Sharif

Brown

Ciantia

et al. 2021

Géotechnique Letters

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Screw piles have been used to support a variety of structures due to their ease of installation and high axial capacity. Recently, screw piles have been proposed as an alternative foundation solution for offshore renewable structures due to their quiet or silent installation. Due to their variable geometry, design and prediction of installation requirements and its effect on in-service capacity may be challenging. In this research study, the discrete-element method (DEM) is used to numerically recreate a series of onshore field tests. The aim of the study is to investigate the ability of DEM to be used as a practical design tool for the design and deployment of screw piles. In this case study, the effect of the geometric helix pitch on the installation torque and tensile capacity of screw piles installed into sand is investigated. DEM results show that the geometric pitch of a screw pile appears to have little effect on the installation torque. The results show that DEM has the potential to be used as a practical design procedure for complex foundation installation where the simulation needs to capture installation effects.

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Horizontal penetration of a finite-length intruder in granular materials

Zhang

Fuentes

2022

Granular Matter

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In recent years, bio-inspired burrowing robots and other intruder problems in granular media have attracted significant attention. Many of these, especially related to traditional penetration problems in geotechnical engineering, cover vertical penetration. Modelling these types of problems numerically using the discrete element method (DEM) is typically done ignoring gravity by controlling the stresses in the selected representative volume. Additionally, most problems involve infinitely long intruders from a modelling point of view. However, in horizontal penetration there is enough evidence to show that intruders are affected by an uplift force that affects the penetration and needs to be considered. In this paper we use the DEM to demonstrate the impact of considering vertical uplift and gravity for a finite-length intruder penetrating in a dense granular media through particle level and macro-behaviour. Additionally, through the numerical study, important mechanisms emerge during horizontal penetration, including four different distinct stages on the surrounding soil, or the extent of disruption, that are fundamentally distorted when gravity is ignored. Graphical abstract

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Energy balance analyses during Standard Penetration Tests in a virtual calibration chamber

Cited by 13 publications

References 39 publications

Use of DEM in geomechanics: Special issue associated with the DEM 8 conference

Use of DEM in geomechanics: Special issue associated with the DEM 8 conference

Using discrete-element method hindcasting of screw pile performance for practical design

Horizontal penetration of a finite-length intruder in granular materials

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