House settlements and trees

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Pages4165; # of pages: 25
Subjectsettlement; clay; trees (plants); shallow foundations; Basements and foundations
AbstractMany large communities in eastern Quebec and eastern Ontario are situated in an area that was once inundated by the post- glacial Champlain Sea. Into this large inland basin was deposited enormous quantities of fine-grained silty clay often characterized on a microscopic scale by an open structured soil skeleton and high water contents. As a consequence, this soil may undergo relatively large volume changes, caused either by excessive loading or the extraction of pore water by the roots of rapidly growing trees. In this paper the conditions that lead to trees causing settlements of buildings on shallow foundations resting on these deposits are described, and examples of damage to houses in the Ottawa area are presented.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number13979
NPARC number20374290
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Record identifier323a5bb5-49e5-4bf0-bb31-8aa29f849965
Record created2012-07-23
Record modified2016-05-09
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