Abstract
This paper presents the cokriging procedure used to estimate the pile tip level. Correlation of spatial variables with the ground surface level are taken into account. Cokriging is a geostatistical method to estimate spatial distribution using two or more correlated random variables simultaneously.
Accurate estimates of pile tip levels are very important in the design of piled structures. The purpose of this paper is to describe a reasonable stochastic model and estimating methods using maximum likelihood estimation. The model and methods are applied and verified using actual data of the pile tip levels. It was found that cokriging is available for estimates of pile tip levels which are correlated ground surface levels.
