Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Improved Prediction of Peak Resistance for Spudcan Penetration in Sand Layer Overlying Clay
A reliable assessment of peak resistance is the key aspect of geotechnical design for spudcan installation in sand-over-clay soil profiles. The most recent failure stress–dependent method has been validated against a large number of centrifuge tests and proved to provide satisfactory accuracy. However, additional centrifuge tests collected in this study indicated that, under certain circumstances, the recently proposed method provides significant overestimations. Further investigation was carried out through centrifuge model tests and large-deformation finite-element analyses covering a comprehensive range of soil parameters and geometries. The measured and computed results confirmed that there is a blind zone for the recently proposed method, where an immoderately higher peak resistance is predicted. The overestimation was found to be related to the overestimated distribution factor. The formula for the distribution factor was therefore modified based on the experimental and numerical results. The modified formula was shown to provide an improved prediction for peak resistance.
Improved Prediction of Peak Resistance for Spudcan Penetration in Sand Layer Overlying Clay
A reliable assessment of peak resistance is the key aspect of geotechnical design for spudcan installation in sand-over-clay soil profiles. The most recent failure stress–dependent method has been validated against a large number of centrifuge tests and proved to provide satisfactory accuracy. However, additional centrifuge tests collected in this study indicated that, under certain circumstances, the recently proposed method provides significant overestimations. Further investigation was carried out through centrifuge model tests and large-deformation finite-element analyses covering a comprehensive range of soil parameters and geometries. The measured and computed results confirmed that there is a blind zone for the recently proposed method, where an immoderately higher peak resistance is predicted. The overestimation was found to be related to the overestimated distribution factor. The formula for the distribution factor was therefore modified based on the experimental and numerical results. The modified formula was shown to provide an improved prediction for peak resistance.
Improved Prediction of Peak Resistance for Spudcan Penetration in Sand Layer Overlying Clay
Zheng, Jingbin (Autor:in) / Chen, Yangbin (Autor:in) / Chen, Xiao (Autor:in) / Wang, Dong (Autor:in) / Jing, Shaodong (Autor:in)
27.10.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Spudcan penetration in sand overlying clay
| British Library Conference Proceedings | 2005
Predicting Peak Resistance of Spudcan Penetrating Sand Overlying Clay
| Online Contents | 2014
Predicting Peak Resistance of Spudcan Penetrating Sand Overlying Clay
| British Library Online Contents | 2014
Numerical study of spudcan penetration in loose sand overlying clay
| Online Contents | 2012