We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Thermally-Induced Settlements for Heat Generating Structures on Unsaturated Soils.
- Authors
Houston, Sandra; Dye, Heather; Lingnau, Brian; Houston, William
- Abstract
In assessing the probable settlements of a heat generating structure on unsaturated soil three stress state variables that are of key importance are (a) temperature, (b) net normal stress, and (c) soil suction. Neglect of or substantial error in evaluation of any one of these three variables can result in substantial error in the estimation of thermally induced soil settlement. It is possible to obtain upper bound estimates of the thermally-induced strains by employing a low-cost laboratory test program utilizing ordinary convection drying ovens. However, if the upper bound values of strain and associated settlement are unacceptable, then it is necessary to use unsaturated soils testing equipment capable of measurement and control of soil suction, net normal stress, and temperature. The primary objective of the laboratory testing program is to obtain the best estimate of field response by using undisturbed soil samples and/or compacted fill samples, as appropriate, and subjecting the specimens to field-appropriate unsaturated soil stress state variables. This practice-focused approach for obtaining thermally-induced unsaturated soil settlements is demonstrated through a laboratory testing program applied to a soil profile.
- Subjects
THERMAL properties of soils; SETTLEMENT of structures; STRESS concentration; SOIL profiles; SOIL testing; CONVECTIVE flow
- Publication
Geotechnical & Geological Engineering, 2015, Vol 33, Issue 2, p307
- ISSN
0960-3182
- Publication type
Article
- DOI
10.1007/s10706-014-9812-1