The design of steep slopes using low-permeability fill and draining geogrids

P. J. Naughton; J. P. Giroud; P. Rimoldi; M. Scotto; D. Crowther

The design of steep slopes using low-permeability fill and draining geogrids

P. J. Naughton
, J. P. Giroud
, P. Rimoldi
, M. Scotto
, D. Crowther

Galway-Mayo Institute of Technology
J.P. Giroud Inc.
Officine Maccaferri SpA
Maccaferri Ltd.

Research output: Chapter in Book or Conference Publication/Proceeding › Conference Publication › peer-review

3 Citations (Scopus)

Abstract

A method is presented for the design of steep slopes constructed from low-permeability fill reinforced with draining geogrids. A parametric variation of the drainage characteristics of the fill and the geometry of the steep slope indicates that the vertical spacing and the length of the reinforcement are important design considerations. For typical values of the coefficients of volume compressibility and consolidation in low-permeability fills an optimum vertical spacing of the reinforcement of 0.5 m was determined. At a vertical spacing of 0.5 m a draining geogrid will dissipate pore water pressures, over the full range of likely drainage properties encountered in lowpermeability fills, inside 24 hours. Furthermore, at this vertical spacing the required transmissivity of the geogrids is independent of the length of the draining geogrid. Finally it is economically viable to manufacture draining geogrids with the drainage characteristics required to dissipate pore water pressures in low-permeability fills.

Original language	English
Title of host publication	Slopes and Geohazards
Editors	Mike G. Winter, Peter J.L. Eldred, Peter J.L. Eldred, Mike G. Winter, David G. Toll, Derek M. Smith
Publisher	ICE Publishing
Pages	2055-2060
Number of pages	6
ISBN (Electronic)	9780727760678
Publication status	Published - 2015
Externally published	Yes
Event	16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015 - Edinburgh, United Kingdom Duration: 13 Sept 2015 → 17 Sept 2015

Publication series

Name	Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015
Volume	4

Conference

Conference	16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015
Country/Territory	United Kingdom
City	Edinburgh
Period	13/09/15 → 17/09/15

Cite this

Naughton, P. J., Giroud, J. P., Rimoldi, P., Scotto, M., & Crowther, D. (2015). The design of steep slopes using low-permeability fill and draining geogrids. In M. G. Winter, P. J. L. Eldred, P. J. L. Eldred, M. G. Winter, D. G. Toll, & D. M. Smith (Eds.), Slopes and Geohazards (pp. 2055-2060). (Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015; Vol. 4). ICE Publishing.

Naughton, P. J. ; Giroud, J. P. ; Rimoldi, P. et al. / The design of steep slopes using low-permeability fill and draining geogrids. Slopes and Geohazards. editor / Mike G. Winter ; Peter J.L. Eldred ; Peter J.L. Eldred ; Mike G. Winter ; David G. Toll ; Derek M. Smith. ICE Publishing, 2015. pp. 2055-2060 (Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015).

@inproceedings{75ec76cdca5f427380637f9ebd046388,

title = "The design of steep slopes using low-permeability fill and draining geogrids",

abstract = "A method is presented for the design of steep slopes constructed from low-permeability fill reinforced with draining geogrids. A parametric variation of the drainage characteristics of the fill and the geometry of the steep slope indicates that the vertical spacing and the length of the reinforcement are important design considerations. For typical values of the coefficients of volume compressibility and consolidation in low-permeability fills an optimum vertical spacing of the reinforcement of 0.5 m was determined. At a vertical spacing of 0.5 m a draining geogrid will dissipate pore water pressures, over the full range of likely drainage properties encountered in lowpermeability fills, inside 24 hours. Furthermore, at this vertical spacing the required transmissivity of the geogrids is independent of the length of the draining geogrid. Finally it is economically viable to manufacture draining geogrids with the drainage characteristics required to dissipate pore water pressures in low-permeability fills.",

author = "Naughton, \{P. J.\} and Giroud, \{J. P.\} and P. Rimoldi and M. Scotto and D. Crowther",

note = "Publisher Copyright: {\textcopyright} The authors and ICE Publishing: All rights reserved, 2015.; 16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015 ; Conference date: 13-09-2015 Through 17-09-2015",

year = "2015",

language = "English",

series = "Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015",

publisher = "ICE Publishing",

pages = "2055--2060",

editor = "Winter, \{Mike G.\} and Eldred, \{Peter J.L.\} and Eldred, \{Peter J.L.\} and Winter, \{Mike G.\} and Toll, \{David G.\} and Smith, \{Derek M.\}",

booktitle = "Slopes and Geohazards",

}

Naughton, PJ, Giroud, JP, Rimoldi, P, Scotto, M & Crowther, D 2015, The design of steep slopes using low-permeability fill and draining geogrids. in MG Winter, PJL Eldred, PJL Eldred, MG Winter, DG Toll & DM Smith (eds), Slopes and Geohazards. Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015, vol. 4, ICE Publishing, pp. 2055-2060, 16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015, Edinburgh, United Kingdom, 13/09/15.

The design of steep slopes using low-permeability fill and draining geogrids. / Naughton, P. J.; Giroud, J. P.; Rimoldi, P. et al.
Slopes and Geohazards. ed. / Mike G. Winter; Peter J.L. Eldred; Peter J.L. Eldred; Mike G. Winter; David G. Toll; Derek M. Smith. ICE Publishing, 2015. p. 2055-2060 (Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015; Vol. 4).

Research output: Chapter in Book or Conference Publication/Proceeding › Conference Publication › peer-review

TY - GEN

T1 - The design of steep slopes using low-permeability fill and draining geogrids

AU - Naughton, P. J.

AU - Giroud, J. P.

AU - Rimoldi, P.

AU - Scotto, M.

AU - Crowther, D.

PY - 2015

Y1 - 2015

N2 - A method is presented for the design of steep slopes constructed from low-permeability fill reinforced with draining geogrids. A parametric variation of the drainage characteristics of the fill and the geometry of the steep slope indicates that the vertical spacing and the length of the reinforcement are important design considerations. For typical values of the coefficients of volume compressibility and consolidation in low-permeability fills an optimum vertical spacing of the reinforcement of 0.5 m was determined. At a vertical spacing of 0.5 m a draining geogrid will dissipate pore water pressures, over the full range of likely drainage properties encountered in lowpermeability fills, inside 24 hours. Furthermore, at this vertical spacing the required transmissivity of the geogrids is independent of the length of the draining geogrid. Finally it is economically viable to manufacture draining geogrids with the drainage characteristics required to dissipate pore water pressures in low-permeability fills.

AB - A method is presented for the design of steep slopes constructed from low-permeability fill reinforced with draining geogrids. A parametric variation of the drainage characteristics of the fill and the geometry of the steep slope indicates that the vertical spacing and the length of the reinforcement are important design considerations. For typical values of the coefficients of volume compressibility and consolidation in low-permeability fills an optimum vertical spacing of the reinforcement of 0.5 m was determined. At a vertical spacing of 0.5 m a draining geogrid will dissipate pore water pressures, over the full range of likely drainage properties encountered in lowpermeability fills, inside 24 hours. Furthermore, at this vertical spacing the required transmissivity of the geogrids is independent of the length of the draining geogrid. Finally it is economically viable to manufacture draining geogrids with the drainage characteristics required to dissipate pore water pressures in low-permeability fills.

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T3 - Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015

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EP - 2060

BT - Slopes and Geohazards

A2 - Winter, Mike G.

A2 - Eldred, Peter J.L.

A2 - Winter, Mike G.

A2 - Toll, David G.

A2 - Smith, Derek M.

PB - ICE Publishing

T2 - 16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015

Y2 - 13 September 2015 through 17 September 2015

ER -

Naughton PJ, Giroud JP, Rimoldi P, Scotto M, Crowther D. The design of steep slopes using low-permeability fill and draining geogrids. In Winter MG, Eldred PJL, Eldred PJL, Winter MG, Toll DG, Smith DM, editors, Slopes and Geohazards. ICE Publishing. 2015. p. 2055-2060. (Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015).

The design of steep slopes using low-permeability fill and draining geogrids

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