Probabilistic Models for Erosion Parameters and Reliability Analysis of Earth Dams and Levees

被引：18

作者：

Andreini, Marco ^{[1
]}

Gardoni, Paolo ^{[2
,3
]}

Pagliara, Stefano ^{[4
]}

Sassu, Mauro ^{[4
]}

机构：

[1] European Org Nucl Res CERN, Occupat Hlth & Safety & Environm Protect Unit, Safety Engn & Environm Grp, Prevent & Safety Engn Expertise Sect DGS SEE XP, CH-1211 Geneva 23, Switzerland

[2] Univ Illinois, Newmark Civil Engn Lab, Dept Civil & Environm Engn, 205 North Mathews Ave, Urbana, IL 61801 USA

[3] Univ Illinois, Newmark Civil Engn Lab, MAE Ctr, 205 North Mathews Ave, Urbana, IL 61801 USA

[4] Univ Pisa, Dept Energy Syst Terr & Construct Engn DESTEC, Largo Lucio Lazzarino 1, I-56126 Pisa, Italy

来源：

ASCE-ASME JOURNAL OF RISK AND UNCERTAINTY IN ENGINEERING SYSTEMS PART A-CIVIL ENGINEERING | 2016年 / 2卷 / 04期

关键词：

Piping; Earth dams; Levees; Water-retaining structures; Bayesian approach; Probabilistic models; Fragility; Parallel computing;

D O I：

10.1061/AJRUA6.0000878

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Probabilistic models for two soil erosion parameters needed to model the erodibility of water-retaining structures are developed. The models predict the values of the critical shear stress and the coefficient of erosion starting from other measurable soil properties. The models include both noncohesive and cohesive contributions to the erosion behavior. An importance sampling simulation method is parallelized to be implemented in parallel computing resources to calibrate the models and estimate the unknown parameters using laboratory data. The probabilistic models are then used to develop fragility curves that capture the vulnerability of a typical earth dam to internal erosion. (C) 2016 American Society of Civil Engineers.

引用

页数：13

共 40 条

[1]

Ang AHS, 2007, PROBABILITY CONCEPTS

[2]

ASTM, 2015, D693815 ASTM

[3]

ASTM, 2012, STANDARD TEST METHOD

[4]

ASTM, 2017, D293717E2 ASTM

[5]