Abstract: Pile foundation is one of the most widely used foundations in China and its engineering quality involves the safety of superstructure. Besides the complexity of the pile foundation engineering due to the geotechnical engineering condition, foundation and structure design, interaction of pile-soil system, construction, professional technology level and experience, etc., pile construction also has a high degree of concealment, so its design, construction, quality inspection, etc. are often more complex than the upper structure of buildings and more likely to have quality risks. Throughout the comparison and verification of the static load testing on two types of pile in the same project, this paper provides the scientific and reliable test data and theoretical support for the design organization in the foundation pile type selection.

Key words: Foundation Piles, Vertical Compression Test on Single Pile, Post-Grouting, Pile Type Selections