Research Background:

There is the flood plain of abandoned channel of Yellow River in the northern region of Jiangsu province. 10m thickness of sediments is deposited in the surface layer. The sediments are mainly made up of silt and silty fine sand, and some soft soil. The loose structure and low strength as well as high seismic intensity give many problems to build expressway. 

Main research contents:

First, research on engineering geological properties (geological characteristics、properties and geologic zoning ) of subsoil in the flood plain of abandoned channel of Yellow River.

Secondly, research on strengthening technology of silt subgrade; Engineering properties of silt; experimental research on dynamic property and strengthening technology of silt; placement technology of silt subgrade; slope defending technology of silt subgrade; research and development on hardening agent of silt.

Thirdly, optimizing design of ground treatment; harm analysis; numerical analogue on failure form of embankment in several typical seismic loads and analysis on liquefaction damage to construction; optimization of ground treatment method.

Fourthly, deformation analysis of subsoil; deformation characteristics analysis; settlement computation method and design method for deformation stabilization.