Evaluation of Concrete Bored Piles Behaviour in Saturated Loose and Dense Sand During the Static Load Testing

Numerical analysis of concrete piles driving in saturated dense and loose sand deposits

“…In this section, the influence of different paramters, defined in the Hypoplastic model with the Intergranular Strain concept on the obtanied pile head displacement during the pile driving is evaluated. As reported by Aghayarzadeh et al (2018), among the Hypoplastic model parameters, the granular hardness (hs) showed the least impact, whereas the critical friction angle ( ) indicated the most significant influence on the load-displacement curve, obtained during the simulation of static load testing. Herein, the effect of these two parameters are evaluated on the recorded pile head displacement during pile driving.…”

“…As explained by Elmi Anaraki 2008, Baskarp sand is a uniform sand with a total unit weight of 20 kN/m 3 , an initial void ratio of 0.83 and 0.65 representing the loose and dense conditions, respectively. The soil properties assigned for Hardening Soil and Hypoplastic soil models were selected based on Dung (2009) and Elmi Anaraki (2008) studies, while the equivalent Mohr-Coulomb soil model properties were obtained from Aghayarzadeh et al (2018), who correlated the results of a drained triaxial test using the soil test facility defined in PLAXIS software. The soil properties corresponding to each soil model and interface parameters used in numerical simulation are summarised in Tables 1 to 4.…”

“…Baskarp sand properties for Mohr-Coulomb soil model including both tangent and secant soil modulus (afterAghayarzadeh et al 2018) …”