Abstract
Rigid inclusions are used to improve the load-bearing capabilities of poor soils. The construction procedure for grouted rigid inclusions in the field involves displacement of the soft soil producing changes in pore-water pressures, and as a result, changes in effective stresses in the immediate vicinity of these elements. A numerical study was performed to examine the post-construction changes in the installation-induced stresses and pore-water pressures around the rigid inclusions. The finite element software PLAXIS was used in the numerical analysis. The soft soil is modeled as a linear elastic perfectly plastic Tresca material. Cylindrical cavity expansion is implemented in the finite element models to represent the rigid inclusion construction process. The results indicate that the installation-induced stresses in the vicinity of the rigid inclusions expressed in the form of earth pressure coefficient K, increase with the dissipation of excess pore-water pressures.
| Original language | American English |
|---|---|
| Journal | Geotechnical Special Publication |
| Volume | GSP 256 |
| DOIs | |
| State | Published - Jan 1 2015 |
Keywords
- Construction Process
- Cylindrical Cavity Expansion
- Dissipation Of Excess Pore Water Pressure
- Earth Pressure Coefficient
- Excess Pore Water Pressure
- Finite Element Software
- Load Bearing Capabilities, Finite Element Method
- Pore Pressure
- Pressure Distribution
- Soils
- Water, Construction Procedures
Disciplines
- Geological Engineering
- Structural Engineering
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