Abstract: Based on the research results of the engineering characteristics of soft soils in Hexi area of Nanjing City, the geographical distribution and the engineering characteristics of the soil layers in the region have some common behaviors.Currently, most of projects are completed by the individual design teams and they only focused on the local geological conditions of the specific projects and foundation selection, the general engineering behavior of the foundation characteristics and the generic design of the aspects of the foundation structure in the region are seldomly summarized.In order to fully utilize the foundation bearing capacity and other geotechnical resources of the area,this paper provides a summary of soil properties of the soil in the region based on a large number of data and experience accumulated during the engineering practice. The foundation design and construction recommendations are provided in the paper, such as, methods of concrete pipe pile selection, construction of castinplace reinforced concrete piles, and considerations of the pile static load tests.

Key words: Hexi Soft Soil in Nanjing City, Geological Conditions, Pile Foundation Design, Pile Static Load Test Considerations