Method for Evaluation of Depth of Wetting in Residential Areas
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VIEW THE REPLYPublication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 135, Issue 2
Abstract
Field sampling was performed at a number of residential structures in the Denver metropolitan area for the purpose of assessing the extent of wetting below residential structures after construction and commencement of landscape irrigation. Total suction measurements using filter paper methods were undertaken on undisturbed samples. A similar data set from sites without previous development or irrigation was used to estimate the suction profile before the imposition of residential construction and landscape irrigation. Comparison of the postdevelopment profile measured at the residential structures to the predevelopment profile estimated using a site-specific procedure was used to assess the depth of wetting at each structure. Cumulative probability curves are presented for the depth of wetting arising from common residential landscape schemes and site drainage for the Denver area. The Denver-area data set was used to develop a method for assessment of depth of wetting. This method can be used to assess depth of wetting from residential development for other regions having different climatic conditions and landscape practices.
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Acknowledgments
The study was initiated and primarily supported by the Colorado Association of Geotechnical Engineers (CAGE), who performed the field sampling, laboratory testing, and a large part of the data evaluation. The writers gratefully acknowledge the contribution of predevelopment suction profile data from CTL-Thompson of Denver. The study was also supported in part by the National Science Foundation (NSF) under Grant No. NSFCMS-0099800. The opinions, conclusions, and interpretations expressed in this paper are those of the writers, and not necessarily of CAGE, CTL-Thompson, or NSF.
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Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 135 • Issue 2 • February 2009
Pages: 169 - 176
Copyright
© 2009 ASCE.
History
Received: Aug 29, 2006
Accepted: Jul 25, 2008
Published online: Feb 1, 2009
Published in print: Feb 2009
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