By test research,the paper introduced the situation of earthwork flexibility raft foundation strengthening shallow soft subgrade,test plan,test materials and model construction etc.

Dynamic and Static Interaction Research of Mega-Frame-Raft Foundation-Sand Gravel Soil Structure

Application of Egorov method in raft foundation settlement calculating is studied.

Based on the analysis of its geological condition, the building is strengthened by using raft foundation, and the settlement is only 8.

In this paper,some engineering practical problems in raft are analysed with FEM.

Furthermore,the Reisner s theickplate-theory which is considered the shearing-transformation is adopted to anlysis raft-foundation.

comparative studies of liquefaction of foundation of highway under rigid base and flexible base;

However,embankment is regarded as a kind of flexible base in these projects,which is different from the assumption of rigid foundation of CFG pile composite technique.

Aiming at the vibration isolation problems of flexible base in practical projects,a theoretical model of a vibration isolation system,which is composed of machine-nonlinear isolator-flexible base,is established,wherein,the elastic installation base is simulated by a rectangular thin plate simply supported on four edges.

Theory of power flow for isolation system of CNC machine-tools with flexible foundation;

Power flow transmission of vibration isolating system on the flexible foundation;

Model experiment of pile-soil stress ratio of composite ground under flexible foundation;