Abstract: Throughout the geotechnical engineering investigation of a marine secondary terraces site in Haikou City, Hainan Province, this paper evaluates the geotechnical engineering characteristics of bioclastic layer by various comprehensive means and proposes the selection of the basic criteria under this geological condition, to provide reference for geotechnical engineering investigation of similar marine geomorphologic strata.

Key words: Marine Secondary Terrace, Bioclastic Layer, Geotechnical Characteristics