Chapter
Feb 8, 2016
Geotechnical Engineering for the Remediation of Structures on Collapsing Soils
Authors: Robert W. Thompson, F.ASCE [email protected], and John Mechling [email protected]Author Affiliations
Publication: Geotechnical and Structural Engineering Congress 2016
Abstract
Two buildings that suffered significant differential settlements from the action of hydro-compressive soils in western Colorado are reviewed. The buildings are located on a relatively large alluvial fan. Alluvial fan deposits are known to collapse when wetted in the arid climate common to western Colorado. The subsurface soils were explored for zoning, building design and after settlements became an issue. It was necessary to characterize the change in conditions to prepare remedial recommendations. Comparisons of pre and post-construction conditions were used to estimate future performance. Field penetration tests, moisture and density determinations, percent saturation, one dimensional consolidation and classification tests were used to judge future performance. Prediction of advance of the wetted front is both critical and difficult to estimate. Graphs of the moisture versus depth are presented over the period 2000 to 2010. Suggested remedial measures are included. Actual design and implementation of the remedial measures is described in companion papers.
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© 2016 American Society of Civil Engineers.
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Published online: Feb 8, 2016
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P.E., D.GE
Senior Consultant CTL/ Inc., Denver, CO. E-mail: [email protected]
P.E.
Branch Manager, CTL/ Inc., Glenwood Springs, CO. E-mail: [email protected]
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