Uncertainty Instability Risk Analysis of High Concrete Arch Dam Abutments
Joint Authors
Gu, Chongshi
Zhao, Erfeng
Cao, Xin
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-10-12
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The uncertainties associated with concrete arch dams rise with the increased height of dams.
Given the uncertainties associated with influencing factors, the stability of high arch dam abutments as a fuzzy random event was studied.
In addition, given the randomness and fuzziness of calculation parameters as well as the failure criterion, hazard point and hazard surface uncertainty instability risk ratio models were proposed for high arch dam abutments on the basis of credibility theory.
The uncertainty instability failure criterion was derived through the analysis of the progressive instability failure process on the basis of Shannon’s entropy theory.
The uncertainties associated with influencing factors were quantized by probability or possibility distribution assignments.
Gaussian random theory was used to generate random realizations for influence factors with spatial variability.
The uncertainty stability analysis method was proposed by combining the finite element analysis and the limit equilibrium method.
The instability risk ratio was calculated using the Monte Carlo simulation method and fuzzy random postprocessing.
Results corroborate that the modeling approach is sound and that the calculation method is feasible.
American Psychological Association (APA)
Cao, Xin& Gu, Chongshi& Zhao, Erfeng. 2017. Uncertainty Instability Risk Analysis of High Concrete Arch Dam Abutments. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1190896
Modern Language Association (MLA)
Cao, Xin…[et al.]. Uncertainty Instability Risk Analysis of High Concrete Arch Dam Abutments. Mathematical Problems in Engineering No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1190896
American Medical Association (AMA)
Cao, Xin& Gu, Chongshi& Zhao, Erfeng. Uncertainty Instability Risk Analysis of High Concrete Arch Dam Abutments. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1190896
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1190896