The quantification of soil variability is one of the most important aspects in the geo-engineering context. The uncertainty analysis is the main part of the reliability assessment for which a quantitative evaluation was performed in this study. The Reliability Index and the Probability of Failure using the First-Order Reliability Method (FORM) represents both, an effective method which is easy to implement at the same time. This work analyzes possible effects of compaction induced into the aquifer of the Scarlino Plain, caused by the extension of the hydraulic barrier for groundwater remediation. The currently implemented vertical barrier is composed of 12 wells which reach the depth of 10 m. The improvement of the project involves the construction of a further 40 clusters, each consisting of a doublet which intercepts different depths (10 and 18 m). The models of the subsoil stratigraphy and of the groundwater were built using a numerical model. The groundwater flow and the piezometric surface in the current configuration of the barrier were studied and the project configuration was evaluated. Using the Aquitard drainage model, the land subsidence was estimated to calculate the maximum admissible displacement related to exhibited goods, the so called territorial vulnerability. The evaluation analysis was performed using a traditional deterministic approach, followed by a reliability method based on probabilistic models. Finally, the respective results were reported in a soil mapping with overlapping layers.

Reliability analysis applied on land subsidence effects of groundwater remediation. Probabilistic vs. deterministic approach / Alimonti, Claudio; Lombardi, Mara; Cardarilli, Monica; Soldo, Elena. - In: WATER RESOURCES MANAGEMENT. - ISSN 1573-1650. - STAMPA. - 31:(2017), pp. 1745-1758. [10.1007/s11269-017-1596-7]

Reliability analysis applied on land subsidence effects of groundwater remediation. Probabilistic vs. deterministic approach

ALIMONTI, Claudio;LOMBARDI, MARA;CARDARILLI, MONICA;SOLDO, ELENA
2017

Abstract

The quantification of soil variability is one of the most important aspects in the geo-engineering context. The uncertainty analysis is the main part of the reliability assessment for which a quantitative evaluation was performed in this study. The Reliability Index and the Probability of Failure using the First-Order Reliability Method (FORM) represents both, an effective method which is easy to implement at the same time. This work analyzes possible effects of compaction induced into the aquifer of the Scarlino Plain, caused by the extension of the hydraulic barrier for groundwater remediation. The currently implemented vertical barrier is composed of 12 wells which reach the depth of 10 m. The improvement of the project involves the construction of a further 40 clusters, each consisting of a doublet which intercepts different depths (10 and 18 m). The models of the subsoil stratigraphy and of the groundwater were built using a numerical model. The groundwater flow and the piezometric surface in the current configuration of the barrier were studied and the project configuration was evaluated. Using the Aquitard drainage model, the land subsidence was estimated to calculate the maximum admissible displacement related to exhibited goods, the so called territorial vulnerability. The evaluation analysis was performed using a traditional deterministic approach, followed by a reliability method based on probabilistic models. Finally, the respective results were reported in a soil mapping with overlapping layers.
2017
first order reliability model (FORM); groundwater remediation; land subsidence; reliability analysis; safety margin
01 Pubblicazione su rivista::01a Articolo in rivista
Reliability analysis applied on land subsidence effects of groundwater remediation. Probabilistic vs. deterministic approach / Alimonti, Claudio; Lombardi, Mara; Cardarilli, Monica; Soldo, Elena. - In: WATER RESOURCES MANAGEMENT. - ISSN 1573-1650. - STAMPA. - 31:(2017), pp. 1745-1758. [10.1007/s11269-017-1596-7]
File allegati a questo prodotto
File Dimensione Formato  
Alimonti_Reliability-analysis-applied_2017.pdf

solo utenti autorizzati

Note: Versione dell'Editor
Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 1.4 MB
Formato Adobe PDF
1.4 MB Adobe PDF   Contatta l'autore

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/948204
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 2
social impact