Soft Soil Subgrade Vacuum Preloading Consolidation Deformation Analysis of Large Rigid Foundation

Abstract

The large rigid foundation has a high requirement on subgrade consolidation deformation, especially the soft soil subgrade, of which the design and construction is very difficult. Through the analysis on subgrade treatment process of a sewage treatment plant in Zhejiang Province, this paper introduces the mathematical calculation model and the specific calculation method for treating the soft soil subgrade with the vacuum preloading method. The calculation results obtained has basically reflected the actual deformation process of the subgrade; it is a rational referential calculation method to guide the design and construction.

Numerical Analysis of Natural Foundation Settlement under Different Subgrade Height in the Yellow River Flood Area

“…In 1925, the founder of soil mechanics Terzaghi [1] has established the one-dimensional consolidation theory , but also introduced a number of assumptions. Since then many scholars [2][3][4][5][6] put forward amendments to the consolidation theory or consolidation calculation on this basis. There are many calculation methods to calculate on the foundation settlement, including hierarchical summation method, stress path method, finite element method, difference method, boundary element method, none element method.…”