Chapter
Apr 26, 2012
Influence of Swell Pressure from Expansive Fill on Retaining Wall Stability
Authors: Mark G. Thomas [email protected], Anand J. Puppala [email protected], and Laureano R. Hoyos [email protected]Author Affiliations
Publication: Contemporary Topics in Ground Modification, Problem Soils, and Geo-Support
Abstract
Retaining wall designs most always specify use of drainable granular backfill. However, in actual practice, onsite soils are sometimes used as a cost-saving measure. In North Texas these onsite soils are often expansive cohesive materials. Traditional design using non-expansive cohesive backfill is well established. However, these methods do not consider the lateral swelling pressures that expansive soils exert upon wetting. This paper offers a method for estimating the magnitude of lateral swell pressure that may be exerted on such structures when these materials are used as backfills. In addition, stability analyses results depicting the impact of swell pressures of these materials on calculated Factors of Safety (FS) values for external stability are presented.
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© 2009 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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ASCE Technical Topics:
- Backfills
- Construction engineering
- Construction methods
- Continuum mechanics
- Dynamic pressure
- Dynamics (solid mechanics)
- Earth materials
- Engineering mechanics
- Excavation
- Expansive soils
- Fills
- Fine-grained soils
- Geomaterials
- Geomechanics
- Geotechnical engineering
- Lateral pressure
- Material mechanics
- Material properties
- Materials engineering
- Pressure (type)
- Retaining structures
- Soil dynamics
- Soil mechanics
- Soil pressure
- Soils (by type)
- Solid mechanics
- Swelling (material)
Authors
Affiliations
Senior Geologist, Parsons Brinckerhoff Americas, Inc., 2777 N. Stemmons Freeway, Ste. 1333, Dallas, Texas 75207. E-mail: [email protected]
Professor, The University of Texas at Arlington Department of Civil Engineering, 416 Yates Street, Arlington, Texas 76019. E-mail: [email protected]
Associate Professor, The University of Texas at Arlington, Department of Civil Engineering, 416 Yates Street, Arlington, Texas 76019. E-mail: [email protected]
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