Case study and back analysis of a residential building damaged by expansive soils

Li, J, Cameron, D and Ren, G 2014, 'Case study and back analysis of a residential building damaged by expansive soils', Computers and Geotechnics, vol. 56, pp. 89-99.

Document type: Journal Article
Collection: Journal Articles

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Title Case study and back analysis of a residential building damaged by expansive soils
Author(s) Li, J
Cameron, D
Ren, G
Year 2014
Journal name Computers and Geotechnics
Volume number 56
Start page 89
End page 99
Total pages 11
Publisher Pergamon
Abstract This paper presents a case study of a residential house damaged by expansive soils. The field investigation revealed that the damage was most likely caused by excessive lawn watering and leaks of sewer pipe and/or stormwater pipe, which resulted in non-uniform soil moisture conditions. Three-dimensional back analysis of this distressed structure indicated that stresses were most critical at a re-entrant corner and that steel reinforcing bars in the beam in this area had yielded. The results of the back analysis also indicated that a stronger footing was required to limit differential deflection to an acceptable level and reduce stress in the footing. The case study has clearly shown that a leaking underground water pipe and/or excessive watering of a garden could cause more severe distortion to a single storey masonry veneer house than could be expected from seasonal moisture change and the deeper moisture re-distribution caused by the imposition of the house on seasonally dry reactive soil. Moreover it has been demonstrated that it would be extremely costly to design a footing for extreme, or abnormal, moisture changes.
Subject Civil Geotechnical Engineering
Keyword(s) Expansive soils
Case study
Back analysis
Finite element
Residential footing
Copyright notice © 2013 Elsevier Ltd. All rights reserved.
ISSN 0266-352X
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Citation counts: TR Web of Science Citation Count  Cited 18 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 12 times in Scopus Article | Citations
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