Reliability Analysis and Updating of Excavation-Induced Ground Settlement for Building Serviceability Assessment
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 134, Issue 10
Abstract
In this paper, the excavation-induced settlement determined by the KJHH model, a recently developed semiempirical model, is used to assess the serviceability reliability of adjacent buildings. The calculated settlement, considered as the load in the context of reliability analyses in this paper, is compared with a tolerable settlement, considered as the resistance herein. The reliability of the adjacent building against “damage” (defined herein as the violation of serviceability requirements such as having intolerable settlement) is first analyzed and the probability of exceedance (i.e., exceeding the tolerable settlement) is calculated. Furthermore, as the excavation proceeds, observed settlement at the current excavation stage is used to update the prediction of settlement at subsequent stages, and the probability of exceedance is updated accordingly.
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Acknowledgments
The study on which the paper is based was supported by the National Science Foundation through Grant No. NSFCMS-0300198 under Program Director Dr. Richard J. Fragaszy. This financial support is greatly appreciated. The views and opinions expressed in this paper, however, do not necessarily reflect the policies or views of the National Science Foundation. The fourth author wishes to acknowledge support by the National Science Council of Taiwan through Grant No. NSC 96-2218-E-006-291. Dr. Eng Hui Khor of the Probabilistic Design and Optimization Group of ANSYS, Inc. is thanked for many helpful discussions on reliability and sensitivity analysis. The journal reviewers are thanked for their thorough and constructive comments that have helped sharpen this paper.
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Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 134 • Issue 10 • October 2008
Pages: 1448 - 1458
Copyright
© 2008 ASCE.
History
Received: Apr 4, 2007
Accepted: Feb 29, 2008
Published online: Oct 1, 2008
Published in print: Oct 2008
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