Proceedings of the
8th International Symposium on Geotechnical Safety and Risk (ISGSR)
14 – 16 December 2022, Newcastle, Australia
Editors: Jinsong Huang, D.V. Griffiths, Shui-Hua Jiang, Anna Giacomini, Richard Kelly
doi:10.3850/978-981-18-5182-7_13-001-cd
CPT Interpolation and Driven-Pile Capacity Calculation Based on Kriging Method
Department of Geotechnical Engineering, Dalian University of Technology, Dalian, China.
ABSTRACT
Site investigation plays an important role in the design of geotechnical structure. However, due to the limitation of funds, the site data is not comprehensive enough to describe the distribution characteristics of soil parameters, which is the major sources of geotechnical uncertainty. This paper proposes a three-dimensional (3D) Kriging method to interpolate the cone penetration test (CPT) data at untested points. 5 theoretical autocorrelation models are compared for the best estimation of the vertical and horizontal scale of fluctuation. A pile design problem introduced in the TC304/TC309 is considered. The applied results illustrate that the well-designed Kriging method is suitable for 3D CPT interpolation and pile design with the spatially variable soil.
Keywords: CPT, Kriging method, Pile capacity, 3D interpolation.
