Numerical Modeling of Slab-on-Grade Foundations: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Numerical Modeling of Slab-on-Grade Foundations

Fredlund, M. D. / Stianson, J. R. / Fredlund, D. G. / Vu, H. / Thode, R. C.

Residential foundations such as slabs-on-ground are often constructed on unsaturated, expansive soils and have to resist deformation associated with external loads and changes in matric suction in the soil. Residential foundations are lightly loaded, and therefore the displacements are mostly due to changes in matric suction. Changes in matric suction can occur as a result of variation in climatic conditions, change in depth of water table, water uptake by vegetation, removal of vegetation or the excessive watering of a lawn. The theoretical context for the analysis of slabs-on-ground placed on expansive soils involves the numerical modeling of moisture flow through the soil and the associated deformations associated with changes in the stress state. The theory associated with moisture movement and volume change has been formulated and widely accepted as part of unsaturated soil mechanics. This paper presents the use of the finite element method to address this complex problem. Various aspects of the separate water flow and deformation aspects will be presented. The combination of stress analysis and seepage analysis is presented. An analysis of the final estimated deformations provides insight into this complex process.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Numerical Modeling of Slab-on-Grade Foundations

Fredlund, M. D. / Stianson, J. R. / Fredlund, D. G. / Vu, H. / Thode, R. C.

Residential foundations such as slabs-on-ground are often constructed on unsaturated, expansive soils and have to resist deformation associated with external loads and changes in matric suction in the soil. Residential foundations are lightly loaded, and therefore the displacements are mostly due to changes in matric suction. Changes in matric suction can occur as a result of variation in climatic conditions, change in depth of water table, water uptake by vegetation, removal of vegetation or the excessive watering of a lawn. The theoretical context for the analysis of slabs-on-ground placed on expansive soils involves the numerical modeling of moisture flow through the soil and the associated deformations associated with changes in the stress state. The theory associated with moisture movement and volume change has been formulated and widely accepted as part of unsaturated soil mechanics. This paper presents the use of the finite element method to address this complex problem. Various aspects of the separate water flow and deformation aspects will be presented. The combination of stress analysis and seepage analysis is presented. An analysis of the final estimated deformations provides insight into this complex process.

Numerical Modeling of Slab-on-Grade Foundations

Fredlund, M. D. / Stianson, J. R. / Fredlund, D. G. / Vu, H. / Thode, R. C.

Residential foundations such as slabs-on-ground are often constructed on unsaturated, expansive soils and have to resist deformation associated with external loads and changes in matric suction in the soil. Residential foundations are lightly loaded, and therefore the displacements are mostly due to changes in matric suction. Changes in matric suction can occur as a result of variation in climatic conditions, change in depth of water table, water uptake by vegetation, removal of vegetation or the excessive watering of a lawn. The theoretical context for the analysis of slabs-on-ground placed on expansive soils involves the numerical modeling of moisture flow through the soil and the associated deformations associated with changes in the stress state. The theory associated with moisture movement and volume change has been formulated and widely accepted as part of unsaturated soil mechanics. This paper presents the use of the finite element method to address this complex problem. Various aspects of the separate water flow and deformation aspects will be presented. The combination of stress analysis and seepage analysis is presented. An analysis of the final estimated deformations provides insight into this complex process.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Numerical Modeling of Slab-on-Grade Foundations

Contributors:

Fredlund, M. D. (author) / Stianson, J. R. (author) / Fredlund, D. G. (author) / Vu, H. (author) / Thode, R. C. (author)

Conference:

Fourth International Conference on Unsaturated Soils ; 2006 ; Carefree, Arizona, United States

Published in:

Unsaturated Soils 2006 ; 2121-2132

Publication date:

2006-03-17

ISBN:

DOI:

https://doi.org/10.1061/40802(189)179

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Unsaturated soils , Slabs , Soil liquefaction , Numerical models , Shear strength , Soil suction , Expansive soils , Foundations , Soil properties

Similar titles

Numerical Modeling of Slab-on-Grade Foundations

Fredlund, M. D. / Stianson, J. R. / Fredlund, D. G. et al. | British Library Conference Proceedings | 2006

Repair of Damaged Slab-on-Grade Foundations

Day, Robert W. | Online Contents | 1996

Design Parameters for Slab-on-Grade Foundations

Nelson, John D. / Chao, Kuo-Chieh / Overton, Daniel D. | ASCE | 2006

Design Parameters for Slab-on-Grade Foundations

Nelson, J. D. / Chao, K.-C. / Overton, D. D. et al. | British Library Conference Proceedings | 2006

Performance of Slab-on-Grade Foundations on Expansive Soil

Day, Robert W. | Online Contents | 1994