構造信頼性理論と確率有限要素解析による河川堤防の浸透破壊確率の評価

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/8144
File
Title
構造信頼性理論と確率有限要素解析による河川堤防の浸透破壊確率の評価
Title Alternative
Probabilistic Evaluation of Seepage Failure of a Levee Based upon Structural Reliability Theory and Probabilistic Finite Element Analysis
Author
氏名 市川 勇人
ヨミ イチカワ ハヤト
別名 Ichikawa Hayato
氏名 中山 隆弘
ヨミ ナカヤマ タカヒロ
別名 Nakayama Takahiro
Subject
seepage flow analysis
circular arc method
safety factor
stochastic finite element method
reliability index
NDC
517.57
Abstract

To date, the stability of levees has been evaluated using the safety factor by seepage flow analysis and circular arc method. Because the safety allowance is estimated from the stability of levees which depend on the underground waters, it is necessary to evaluate the probability of seepage flow and the uncertainty of the resistance of levees quantitatively. In this study, the uncertainty of the geotechnical properties of levees was quantitatively evaluated, and the probabilistic estimates were made for the local failure and the global failure, assuming a circular slip surface. Specifically, the safety margin was evaluated by the failure probability and/or the reliability index by expressing the geotechnical parameters using the probabilistic model and the stochastic finite element method. The action of seepage flow and the rise of water level of the river caused by rainfall were deterministically calculated by the transient analysis.

Journal Title
広島工業大学紀要. 研究編
Volume
44
Spage
69
Epage
76
Published Date
2010-02
Publisher
広島工業大学
ISSN
1346-9975
NCID
AA11599110
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Old URI
Set
it-hiroshima