Developing a geotechnical database to improve slope stability assessments in Quito, Ecuador

Rose Hen-Jones; Paul J. Vardanega; Camilo Zapata; Eliana  Jiménez; Elizabeth A. Holcombe; Camilo C Zapata

Developing a geotechnical database to improve slope stability assessments in Quito, Ecuador

Rose Hen-Jones, Paul J. Vardanega^*, Camilo Zapata, Eliana Jiménez, Elizabeth A. Holcombe, Camilo C Zapata

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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Abstract

Quito, Ecuador, is a city at risk of many hazards including earthquakes, volcanic eruptions and landslides, compounded by the widespread presence of problematic volcanic soils known as Cangahua. This paper presents the preliminary results of data analyses undertaken on a new geotechnical database for Quito, compiled from a variety of sources. It is envisaged that this database will be utilised primarily for improving our understanding of landslide hazard drivers in communities in and around the city. The preliminary statistical analyses include probability density functions and regression models for soil parameters. A difference in geotechnical variability between the north and the south of the city was observed. The study also presents data from unmanned aerial vehicle (UAV) mapping of an informally constructed hillside community in Quito, identifying house-scale slope features (e.g. cut slopes and house loading) that may affect local landslide hazard processes. Together, the statistical analyses of these datasets will provide the inputs for physics-based stochastic slope stability modelling. Recommendations for future data collection are given to support the development of a higher resolution Quito database and facilitate the improvement of community-scale slope stability assessments.

Original language	English
Title of host publication	Proceedings of Twentieth International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE 2022), A Geotechnical Discovery Down Under, Sydney, New South Wales, Australia, 1-5 May 2022
Editors	Md Mizanur Rahman, Mark Jaksa
Place of Publication	St Ives, NSW, Australia
Publisher	Australian Geomechanics Society
Pages	2569-2574
Volume	2
ISBN (Electronic)	978-0-9946261-4-1
Publication status	Published - 13 May 2022
Event	ICSMGE 2022: 20th International Conference on Soil Mechanics and Geotechnical Engineering - ICC Sydney, Sydney, Australia Duration: 1 May 2022 → 5 May 2022 Conference number: 20 https://icsmge2022.org/

Conference

Conference	ICSMGE 2022
Country/Territory	Australia
City	Sydney
Period	1/05/22 → 5/05/22
Internet address	https://icsmge2022.org/

Keywords

geotechnical database
slope stability
UAV mapping
urban landslides

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https://www.issmge.org/publications/online-library

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4 Conference Contribution (Conference Proceeding)

Co-producing and communicating landslide knowledge for risk-informed urban development in Quito
Zapata, C., Holcombe, E. A., Vardanega, P. J. & Jiménez, E., 3 Dec 2024, (E-pub ahead of print) Proceedings of the 17th Pan-American Conference on Soil Mechanics and Geotechnical Engineering (XVII PCSMGE), and 2nd Latin-American Regional Conference of the International Association for Engineering Geology and the Environment (IAEG), La Serena Chile, 2024. International Society for Soil Mechanics and Geotechnical Engineering, 9 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

Open Access
File
Drone systems for landslide hazard assessment in Quito
Zapata, C., Holcombe, E. A., Vardanega, P. J. & Jiménez, E., 3 Dec 2024, (E-pub ahead of print) Proceedings of the 17th Pan-American Conference on Soil Mechanics and Geotechnical Engineering (XVII PCSMGE), and 2nd Latin-American Regional Conference of the International Association for Engineering Geology and the Environment (IAEG), La Serena Chile, 2024. International Society for Soil Mechanics and Geotechnical Engineering, 10 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

Open Access
File
Slope stability modelling of urbanisation scenarios for communities in north Quito, Ecuador
Hen-Jones, R., Zapata, C., Jiménez, E., Holcombe, E. A. & Vardanega, P. J., 17 Sept 2024, Geotechnical Engineering Challenges to Meet Current and Emerging Needs of Society: Proceedings of the XVIII European Conference on Soil Mechanics and Geotechnical Engineering, 26–30 August 2024, Lisbon, Portugal. Guerra, N., Fernandes, M. M., Ferreira, C., Correia, A. G., Pinto, A. & Sêco e Pinto, P. (eds.). 1st ed. Abingdon, Oxon: CRC Press/Balkema, Taylor & Francis Group, p. 1146-1149 4 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

Open Access
File
33 Downloads (Pure)

2 Finished

Tomorrow's Cities GCRF Hub
Vardanega, P. J. (Principal Investigator)
1/04/20 → 31/03/21
Project: Research
MURTH
Holcombe, E. A. (Principal Investigator)
13/02/19 → 31/05/22
Project: Research

Cite this

Hen-Jones, R., Vardanega, P. J., Zapata, C., Jiménez, E., Holcombe, E. A., & Zapata, C. C. (2022). Developing a geotechnical database to improve slope stability assessments in Quito, Ecuador. In M. M. Rahman, & M. Jaksa (Eds.), Proceedings of Twentieth International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE 2022), A Geotechnical Discovery Down Under, Sydney, New South Wales, Australia, 1-5 May 2022 (Vol. 2, pp. 2569-2574). Australian Geomechanics Society. https://www.issmge.org/publications/online-library

Hen-Jones, Rose ; Vardanega, Paul J. ; Zapata, Camilo et al. / Developing a geotechnical database to improve slope stability assessments in Quito, Ecuador. Proceedings of Twentieth International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE 2022), A Geotechnical Discovery Down Under, Sydney, New South Wales, Australia, 1-5 May 2022. editor / Md Mizanur Rahman ; Mark Jaksa. Vol. 2 St Ives, NSW, Australia : Australian Geomechanics Society, 2022. pp. 2569-2574

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title = "Developing a geotechnical database to improve slope stability assessments in Quito, Ecuador",

abstract = "Quito, Ecuador, is a city at risk of many hazards including earthquakes, volcanic eruptions and landslides, compounded by the widespread presence of problematic volcanic soils known as Cangahua. This paper presents the preliminary results of data analyses undertaken on a new geotechnical database for Quito, compiled from a variety of sources. It is envisaged that this database will be utilised primarily for improving our understanding of landslide hazard drivers in communities in and around the city. The preliminary statistical analyses include probability density functions and regression models for soil parameters. A difference in geotechnical variability between the north and the south of the city was observed. The study also presents data from unmanned aerial vehicle (UAV) mapping of an informally constructed hillside community in Quito, identifying house-scale slope features (e.g. cut slopes and house loading) that may affect local landslide hazard processes. Together, the statistical analyses of these datasets will provide the inputs for physics-based stochastic slope stability modelling. Recommendations for future data collection are given to support the development of a higher resolution Quito database and facilitate the improvement of community-scale slope stability assessments.",

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author = "Rose Hen-Jones and Vardanega, {Paul J.} and Camilo Zapata and Eliana Jim{\'e}nez and Holcombe, {Elizabeth A.} and Zapata, {Camilo C}",

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publisher = "Australian Geomechanics Society",

note = "ICSMGE 2022 : 20th International Conference on Soil Mechanics and Geotechnical Engineering ; Conference date: 01-05-2022 Through 05-05-2022",

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Hen-Jones, R, Vardanega, PJ , Zapata, C, Jiménez, E, Holcombe, EA & Zapata, CC 2022, Developing a geotechnical database to improve slope stability assessments in Quito, Ecuador. in MM Rahman & M Jaksa (eds), Proceedings of Twentieth International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE 2022), A Geotechnical Discovery Down Under, Sydney, New South Wales, Australia, 1-5 May 2022. vol. 2, Australian Geomechanics Society, St Ives, NSW, Australia, pp. 2569-2574, ICSMGE 2022, Sydney, Australia, 1/05/22. <https://www.issmge.org/publications/online-library>

Developing a geotechnical database to improve slope stability assessments in Quito, Ecuador. / Hen-Jones, Rose; Vardanega, Paul J.; Zapata, Camilo et al.
Proceedings of Twentieth International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE 2022), A Geotechnical Discovery Down Under, Sydney, New South Wales, Australia, 1-5 May 2022. ed. / Md Mizanur Rahman; Mark Jaksa. Vol. 2 St Ives, NSW, Australia: Australian Geomechanics Society, 2022. p. 2569-2574.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - Developing a geotechnical database to improve slope stability assessments in Quito, Ecuador

AU - Hen-Jones, Rose

AU - Vardanega, Paul J.

AU - Zapata, Camilo

AU - Jiménez, Eliana

AU - Holcombe, Elizabeth A.

AU - Zapata, Camilo C

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Y1 - 2022/5/13

N2 - Quito, Ecuador, is a city at risk of many hazards including earthquakes, volcanic eruptions and landslides, compounded by the widespread presence of problematic volcanic soils known as Cangahua. This paper presents the preliminary results of data analyses undertaken on a new geotechnical database for Quito, compiled from a variety of sources. It is envisaged that this database will be utilised primarily for improving our understanding of landslide hazard drivers in communities in and around the city. The preliminary statistical analyses include probability density functions and regression models for soil parameters. A difference in geotechnical variability between the north and the south of the city was observed. The study also presents data from unmanned aerial vehicle (UAV) mapping of an informally constructed hillside community in Quito, identifying house-scale slope features (e.g. cut slopes and house loading) that may affect local landslide hazard processes. Together, the statistical analyses of these datasets will provide the inputs for physics-based stochastic slope stability modelling. Recommendations for future data collection are given to support the development of a higher resolution Quito database and facilitate the improvement of community-scale slope stability assessments.

AB - Quito, Ecuador, is a city at risk of many hazards including earthquakes, volcanic eruptions and landslides, compounded by the widespread presence of problematic volcanic soils known as Cangahua. This paper presents the preliminary results of data analyses undertaken on a new geotechnical database for Quito, compiled from a variety of sources. It is envisaged that this database will be utilised primarily for improving our understanding of landslide hazard drivers in communities in and around the city. The preliminary statistical analyses include probability density functions and regression models for soil parameters. A difference in geotechnical variability between the north and the south of the city was observed. The study also presents data from unmanned aerial vehicle (UAV) mapping of an informally constructed hillside community in Quito, identifying house-scale slope features (e.g. cut slopes and house loading) that may affect local landslide hazard processes. Together, the statistical analyses of these datasets will provide the inputs for physics-based stochastic slope stability modelling. Recommendations for future data collection are given to support the development of a higher resolution Quito database and facilitate the improvement of community-scale slope stability assessments.

KW - geotechnical database

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KW - urban landslides

M3 - Conference Contribution (Conference Proceeding)

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BT - Proceedings of Twentieth International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE 2022), A Geotechnical Discovery Down Under, Sydney, New South Wales, Australia, 1-5 May 2022

A2 - Rahman, Md Mizanur

A2 - Jaksa, Mark

PB - Australian Geomechanics Society

CY - St Ives, NSW, Australia

T2 - ICSMGE 2022

Y2 - 1 May 2022 through 5 May 2022

ER -

Hen-Jones R, Vardanega PJ , Zapata C, Jiménez E, Holcombe EA , Zapata CC. Developing a geotechnical database to improve slope stability assessments in Quito, Ecuador. In Rahman MM, Jaksa M, editors, Proceedings of Twentieth International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE 2022), A Geotechnical Discovery Down Under, Sydney, New South Wales, Australia, 1-5 May 2022. Vol. 2. St Ives, NSW, Australia: Australian Geomechanics Society. 2022. p. 2569-2574

Developing a geotechnical database to improve slope stability assessments in Quito, Ecuador

Abstract

Conference

Keywords

Access to Document

Handle.net

Fingerprint

Research output

Co-producing and communicating landslide knowledge for risk-informed urban development in Quito

Drone systems for landslide hazard assessment in Quito

Slope stability modelling of urbanisation scenarios for communities in north Quito, Ecuador

Projects

Tomorrow's Cities GCRF Hub

MURTH

Cite this