Uprooting Safety Factor of Trees from Static Pulling Tests and Dynamic Monitoring

A. Marsiglia; A. Galli; G. Marrazzo; R. Castellanza; Matteo Oryem Ciantia

doi:10.1007/978-3-031-34761-0_27

Uprooting Safety Factor of Trees from Static Pulling Tests and Dynamic Monitoring

A. Marsiglia
, A. Galli
, G. Marrazzo
, R. Castellanza
, Matteo Oryem Ciantia (Lead / Corresponding author)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Tree fall events are acknowledged as important causes of damage in urbanized areas and tree risk assessment is now part of general risk management analyses. Preserving arboreal heritage also implies biomass and biodiversity conservation, reduction of superficial soil erosion, improving the stability of potentially unstable slopes. In this context, tree risk assessment techniques used by professional agronomists may benefit of a deeper mechanical understanding of the soil-root interaction mechanisms
controlling tree stability. From a Geotechnical point of view, the tree root plate is conceptually assimilated to the foundation of a slender structure subject to eccentric loads. In the paper results of static pulling tests and wind dynamic monitoring on two liquidambar trees are described; estimations of their uprooting safety factor are then derived according to the currently available techniques used in the agronomic field. The pull tests were performed using an advanced loading-unloading scheme, along two orthogonal directions. The preliminary interpretation shows that the system is characterized by a marked non-linear and irreversible behaviour, even at low loading levels as usually tested in agronomic practice. The results suggest that dynamic tree stability testing could be a valuable tool for stability assessment, albeit the interpretation of the results requires expertise in the dynamic behaviour of trees.

Original language	English
Title of host publication	Geotechnical Engineering in the Digital and Technological Innovation Era
Editors	Alessio Ferrari, Guido Gottardi, Maurizio Ziccarelli, Marco Rosone
Place of Publication	Switzerland
Publisher	Springer
Chapter	27
Pages	218-225
Number of pages	8
Edition	1
ISBN (Electronic)	9783031347610
ISBN (Print)	9783031347603 (hbk), 9783031347634 (pbk)
DOIs	https://doi.org/10.1007/978-3-031-34761-0_27
Publication status	Published - 2023
Event	VIII Convegno Nazionale dei Ricercatori di Ingegneria Geotecnica: 8th Italian Conference of Researchers in Geotechnical Engineering - Università degli Studi di Palermo, Palermo, Italy Duration: 5 Jul 2023 → 7 Jul 2023 https://www.cnrig23.community.unipa.it/

Publication series

Name	Springer Series in Geomechanics and Geoengineering (SSGG)
ISSN (Print)	1866-8755
ISSN (Electronic)	1866-8763

Conference

Conference	VIII Convegno Nazionale dei Ricercatori di Ingegneria Geotecnica
Abbreviated title	CNRIG 2023
Country/Territory	Italy
City	Palermo
Period	5/07/23 → 7/07/23
Internet address	https://www.cnrig23.community.unipa.it/

Keywords

Pull tests
tree risk assessment
lateral load
dynamic monitoring

Access to Document

10.1007/978-3-031-34761-0_27

Cite this

Marsiglia, A., Galli, A., Marrazzo, G., Castellanza, R., & Ciantia, M. O. (2023). Uprooting Safety Factor of Trees from Static Pulling Tests and Dynamic Monitoring. In A. Ferrari, G. Gottardi, M. Ziccarelli, & M. Rosone (Eds.), Geotechnical Engineering in the Digital and Technological Innovation Era (1 ed., pp. 218-225). (Springer Series in Geomechanics and Geoengineering (SSGG)). Springer . https://doi.org/10.1007/978-3-031-34761-0_27

Marsiglia, A. ; Galli, A. ; Marrazzo, G. et al. / Uprooting Safety Factor of Trees from Static Pulling Tests and Dynamic Monitoring. Geotechnical Engineering in the Digital and Technological Innovation Era. editor / Alessio Ferrari ; Guido Gottardi ; Maurizio Ziccarelli ; Marco Rosone. 1. ed. Switzerland : Springer , 2023. pp. 218-225 (Springer Series in Geomechanics and Geoengineering (SSGG)).

@inproceedings{72b3435dd6b7442aa889b459503bb8f8,

title = "Uprooting Safety Factor of Trees from Static Pulling Tests and Dynamic Monitoring",

abstract = "Tree fall events are acknowledged as important causes of damage in urbanized areas and tree risk assessment is now part of general risk management analyses. Preserving arboreal heritage also implies biomass and biodiversity conservation, reduction of superficial soil erosion, improving the stability of potentially unstable slopes. In this context, tree risk assessment techniques used by professional agronomists may benefit of a deeper mechanical understanding of the soil-root interaction mechanisms controlling tree stability. From a Geotechnical point of view, the tree root plate is conceptually assimilated to the foundation of a slender structure subject to eccentric loads. In the paper results of static pulling tests and wind dynamic monitoring on two liquidambar trees are described; estimations of their uprooting safety factor are then derived according to the currently available techniques used in the agronomic field. The pull tests were performed using an advanced loading-unloading scheme, along two orthogonal directions. The preliminary interpretation shows that the system is characterized by a marked non-linear and irreversible behaviour, even at low loading levels as usually tested in agronomic practice. The results suggest that dynamic tree stability testing could be a valuable tool for stability assessment, albeit the interpretation of the results requires expertise in the dynamic behaviour of trees.",

keywords = "Pull tests, tree risk assessment, lateral load, dynamic monitoring",

author = "A. Marsiglia and A. Galli and G. Marrazzo and R. Castellanza and Ciantia, \{Matteo Oryem\}",

note = "Funding Information: The support by Agro Services s.r.l. and the Scottish Research Partnership in Engineering (SRPe), through the SRPe-IDP/011 research grant, is acknowledged. Copyright: {\textcopyright} The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.; VIII Convegno Nazionale dei Ricercatori di Ingegneria Geotecnica : 8th Italian Conference of Researchers in Geotechnical Engineering, CNRIG 2023 ; Conference date: 05-07-2023 Through 07-07-2023",

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language = "English",

isbn = "9783031347603 (hbk)",

series = "Springer Series in Geomechanics and Geoengineering (SSGG)",

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Marsiglia, A, Galli, A, Marrazzo, G, Castellanza, R & Ciantia, MO 2023, Uprooting Safety Factor of Trees from Static Pulling Tests and Dynamic Monitoring. in A Ferrari, G Gottardi, M Ziccarelli & M Rosone (eds), Geotechnical Engineering in the Digital and Technological Innovation Era. 1 edn, Springer Series in Geomechanics and Geoengineering (SSGG), Springer , Switzerland, pp. 218-225, VIII Convegno Nazionale dei Ricercatori di Ingegneria Geotecnica, Palermo, Italy, 5/07/23. https://doi.org/10.1007/978-3-031-34761-0_27

Uprooting Safety Factor of Trees from Static Pulling Tests and Dynamic Monitoring. / Marsiglia, A.; Galli, A.; Marrazzo, G. et al.
Geotechnical Engineering in the Digital and Technological Innovation Era. ed. / Alessio Ferrari; Guido Gottardi; Maurizio Ziccarelli; Marco Rosone. 1. ed. Switzerland: Springer , 2023. p. 218-225 (Springer Series in Geomechanics and Geoengineering (SSGG)).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Uprooting Safety Factor of Trees from Static Pulling Tests and Dynamic Monitoring

AU - Marsiglia, A.

AU - Galli, A.

AU - Marrazzo, G.

AU - Castellanza, R.

AU - Ciantia, Matteo Oryem

N1 - Funding Information: The support by Agro Services s.r.l. and the Scottish Research Partnership in Engineering (SRPe), through the SRPe-IDP/011 research grant, is acknowledged. Copyright: © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

PY - 2023

Y1 - 2023

N2 - Tree fall events are acknowledged as important causes of damage in urbanized areas and tree risk assessment is now part of general risk management analyses. Preserving arboreal heritage also implies biomass and biodiversity conservation, reduction of superficial soil erosion, improving the stability of potentially unstable slopes. In this context, tree risk assessment techniques used by professional agronomists may benefit of a deeper mechanical understanding of the soil-root interaction mechanisms controlling tree stability. From a Geotechnical point of view, the tree root plate is conceptually assimilated to the foundation of a slender structure subject to eccentric loads. In the paper results of static pulling tests and wind dynamic monitoring on two liquidambar trees are described; estimations of their uprooting safety factor are then derived according to the currently available techniques used in the agronomic field. The pull tests were performed using an advanced loading-unloading scheme, along two orthogonal directions. The preliminary interpretation shows that the system is characterized by a marked non-linear and irreversible behaviour, even at low loading levels as usually tested in agronomic practice. The results suggest that dynamic tree stability testing could be a valuable tool for stability assessment, albeit the interpretation of the results requires expertise in the dynamic behaviour of trees.

AB - Tree fall events are acknowledged as important causes of damage in urbanized areas and tree risk assessment is now part of general risk management analyses. Preserving arboreal heritage also implies biomass and biodiversity conservation, reduction of superficial soil erosion, improving the stability of potentially unstable slopes. In this context, tree risk assessment techniques used by professional agronomists may benefit of a deeper mechanical understanding of the soil-root interaction mechanisms controlling tree stability. From a Geotechnical point of view, the tree root plate is conceptually assimilated to the foundation of a slender structure subject to eccentric loads. In the paper results of static pulling tests and wind dynamic monitoring on two liquidambar trees are described; estimations of their uprooting safety factor are then derived according to the currently available techniques used in the agronomic field. The pull tests were performed using an advanced loading-unloading scheme, along two orthogonal directions. The preliminary interpretation shows that the system is characterized by a marked non-linear and irreversible behaviour, even at low loading levels as usually tested in agronomic practice. The results suggest that dynamic tree stability testing could be a valuable tool for stability assessment, albeit the interpretation of the results requires expertise in the dynamic behaviour of trees.

KW - Pull tests

KW - tree risk assessment

KW - lateral load

KW - dynamic monitoring

UR - https://www.scopus.com/pages/publications/85164728243

U2 - 10.1007/978-3-031-34761-0_27

DO - 10.1007/978-3-031-34761-0_27

M3 - Conference contribution

SN - 9783031347603 (hbk)

SN - 9783031347634 (pbk)

T3 - Springer Series in Geomechanics and Geoengineering (SSGG)

SP - 218

EP - 225

BT - Geotechnical Engineering in the Digital and Technological Innovation Era

A2 - Ferrari, Alessio

A2 - Gottardi, Guido

A2 - Ziccarelli, Maurizio

A2 - Rosone, Marco

PB - Springer

CY - Switzerland

T2 - VIII Convegno Nazionale dei Ricercatori di Ingegneria Geotecnica

Y2 - 5 July 2023 through 7 July 2023

ER -

Marsiglia A, Galli A, Marrazzo G, Castellanza R, Ciantia MO. Uprooting Safety Factor of Trees from Static Pulling Tests and Dynamic Monitoring. In Ferrari A, Gottardi G, Ziccarelli M, Rosone M, editors, Geotechnical Engineering in the Digital and Technological Innovation Era. 1 ed. Switzerland: Springer . 2023. p. 218-225. (Springer Series in Geomechanics and Geoengineering (SSGG)). Epub 2023 Jun 17. doi: 10.1007/978-3-031-34761-0_27

Uprooting Safety Factor of Trees from Static Pulling Tests and Dynamic Monitoring

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Keywords

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