“…Experimentally, the different cone models were designed and many tests are performed to investigate the sandy soil resistance under 1 g (Zhuang & Yu, 2018) and even in a centrifuge using controlled installation system (Kim et al, 2014;Darby, Bronner, Para Bastidas, Boulanger & De Jong, 2016;Zhou et al, 2019). Six millimeter small scale penetrometer model was designed, manufactured and tested new 6 mm cone penetrometer (Kutter et al, 2017;Carey et al, 2018).…”