TC106 Unsaturated Soils

Unsaturated Soils

Host Member Society: Spain

Short name: Unsaturated Soils (TC106)

GeoWorld GroupUnsaturated Soils (TC106)

ISSMGE Interactive Technical Talk Episode 6: Unsaturated Soils (TC106)

The sixth episode of International Interactive Technical Talk has just been launched and is supported by TC106. Prof. Enrique Romero, Dr. Maha Saleh and Liuxin Chen are discussing with Dr. Marc Ballouz about "Unsaturated Soils".

Watch ISSMGE Interactive Technical Tal

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International Workshop on Landslides Susceptibility and Adaptability in South East Asia: Theory to Practice

Given the role of unsaturated soil mechanics in the topic of the International workshop on Landslides Susceptibility and Adaptability in South-East Asia: Theory to Practice, we are pleased to consider attending this workshop, which is scheduled from 29-30 March 202

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Application of Unsaturated Soil Mechanics on the Analysis of Slopes

Indian Institute of Technology Mandi, Durham University, UK and Universiti Kebangsaan Malaysia (UKM) organised a 2-day training course on the "Application of Unsaturated Soil Mechanics on the Analysis of Slopes", 24-25 February 2022. 


The speakers were

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A pre-conference workshop entitled, Relevance of Unsaturated Soil Mechanics in Practice has been organized in association with TC 106 as part of the Indian Geotechnical Conference (IGC), the annual national flagship event of the Indian Geotechni

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3rd Pan-American Conference on Unsaturated Soils

The 3rd Pan American Conference on Unsaturated Soils, will be held fully on line in Rio de Janeiro, Brazil, from 26th to 28th July 2021. Registration is now open, so do visit the conference site ( and take advantage of the early&nbs

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5th International Colloquium on Unsaturated Soils, UNSATOuargla, Algeria

The 5th International Colloquium on Unsaturated Soils / 5ème Colloque International sur les Sols Non Saturés, UNSATOuargla will be held by the University of Ouargla (Algeria) in collaboration with the unsat-dz network on 16 and 17

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4th European Conference on Unsaturated Soils (E-UNSAT 2020) Online Conference

The 4th European Conference on Unsaturated Soils (E-UNSAT 2020), originally planned to be held in Lisbon, Portugal in June 2020, will now take place as an ONLINE event 19-21st October 2020. The Final Programme is at the website (authors):  https://eunsat2020.tecnico.uli

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4th European Conference on Unsaturated Soils, Lisbon, Portugal (E-UNSAT 2020)

The 4th European Conference on Unsaturated Soils (E-UNSAT2020) with the theme "Unsaturated Horizons" will be held 24 to 26 June 2020 in Lisbon, Portugal. For registration and other details visit

It is organised by Instituto Sup

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3rd Pan-American Conference on Unsaturated Soils - PanAm UNSAT 2021

We invite you to attend the 3rd Pan-American Conference on Unsaturated Soils, which will be held in the city of Rio de Janeiro, Brazil, 25-28 July 2021. The conference will deal with advances in unsaturated soil mechanics and discuss current and future trends in practic

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Asia-Pacific Conference on Unsaturated Soils, Nagoya, Japan

The Japanese Geotechnical Society (JGS) and TC106 of ISSMGE hosted the 7th Asia-Pacific Conference on Unsaturated Soils (AP-UNSAT2019) in August 2019 at Nagoya City, the geographical center of Japan. We had 220 participants from seventeen countries and regions, among which t

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Professor Del Fredlund presents Jennings Lecture at ARCSMGE

Unsaturated Soil Mechanics will have a high profile at the 17th African Regional Conference on Soil Mechanics and Geotechnical Engineering.

Prof. Delwyn Fredlund will present the Jennings Lecture at the conference with the title of Determination of unsaturated soil proper

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Unsaturated Soils Course at the African Regional Conference SMGE

TC106 (with support for TC107 on Lateritic Soils) is running a Course on Unsaturated Soil Mechanics during the 17th African Regional Conference on Soil Mechanics and Geotechnical Engineering in Cape Town, South Africa on Monday 7th October, 2019.

Presentations will be given by

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Vol. 5, Issue 1 of the IJGCH has been released!

We are pleased to announce the special Issue #1 of Volume #5 of the International Journal of Geoengineering Case Histories, an official Journal of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE).

This Special Issue presents recent case histor

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7th Asia-Pacific Conference on Unsaturated Soils

DATE: August 23~25, 2019
Host: The Japanese Geotechnical Society. Supported by: TC106 Unsaturated Soils of ISSMGE

Venue: Nagoya Congress

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TC106 Discussion Sessions at ICSMGE, Seoul 2017

TC106 is organising 3 discussion sessions on Unsaturated Soils at the 19th International Conference on Soil Mechanics and Geotechnical Engineering at Seoul in September 2017.

TC106 Discussion Sessions

Thursday 21st September 2017, 09:00-15:00

Room 203A/B, COEX Conventio

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Unsaturated Soils Workshop at ICSMGE, Seoul 2017

TC106 is organising a workshop on Unsaturated Soils at the 19th International Conference on Soil Mechanics and Geotechnical Engineering at Seoul in September 2017.

The State of Practice in Unsaturated Soil Mechanics

TC106 Workshop. Wednesday 20th September 2017, 09:00-10:3

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Blight Lecture at ICSMGE, Seoul 2017

Blight Lecture

The 19th International Conference on Soil Mechanics and Geotechnical Engineering at Seoul, September 2017 will host the 2nd Blight Lecture. The Blight Lecture is the Honour Lecture for Unsaturated Soils, nominated by the TC106 committee.

Professor Delwyn Fredlund

The 2nd Blight Le

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7th International Conference on Unsaturated Soils


On behalf of TC106 and Hong Kong Geotechnical Society, the HKUST is pleased to invite you to attend the 7th International Conference on Unsaturated Soils (UNSAT2018) in August 2018. This conference will provide an excellent opportunity for worldwide academics, engineers, scie

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2nd PanAmerican Conference on Unsaturated Soils

On behalf of the Unsaturated Soils Technical Committee of the Geo-Institute (G-I) of the American Society of Civil Engineers (ASCE), and the TC 106 committee on Unsaturated Soils of the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE), you are cor

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Unsaturated Soil Mechanics in Transportation Geotechnics

A session on Unsaturated Soils was organised by David Toll, Eduardo Alonso and Claudia Zapata at the 3rd International Conference on Transportation Geotechnics in Guimarães, Portugal in 2016. The papers are available on-line as Chapter 2: Unsaturated Soil Mechanics in Tran

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3rd European Conference on Unsaturated Soils, Paris 2016

The Proceedings of the 3rd European Conference on Unsaturated Soils, Paris 2016 are available on-line at:

The happy delegates who attended the conference are shown below!

E-UNSAT 2016 Group Photo

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Disseminate knowledge and practice in the area of mechanics of unsaturated soils including as examples, expansive, collapsible, residual, arid, and compacted soils:

  • Organize specialty conferences, symposiums and workshops.
  • Encourage preparation of keynote lectures, state-of-the-art lectures including new technology, general reports for conferences organized by the International Society, regional conferences and conferences organized by Member societies.


To establish guidelines and technical recommendations in the field of unsaturated soils:

  • Promote benchmark exercises to establish the capabilities of current theoretical frameworks and prediction methodologies in unsaturated soil mechanics.
  • Promote the exchange of information about testing of unsaturated soils for geotechnical and geoenvironmental purposes.

Assist with technical programs of international and regional conferences organized by the ISSMGE:

  • Promote the presentation of findings of the TC in main sessions and discussion sessions.
  • Promote TC106-sponsored sessions on unsaturated soils at ISSMGE sponsored international and regional conferences on soil mechanics and geotechnical engineering, and to support special geotechnical and geoenvironmental conferences on unsaturated soils.

Interact with industry and overlapping organizations working in areas related to the TC's specialist area:

  • Cooperate actively with other technical committees whose field of activity involves important questions related to unsaturated soils: TC208 Slope Stability in Engineering Practice; TC210 Dams and Embankments and TC215 Environmental Geotechnics.

# Type Full Name Country
1 Chair Enrique Romero Spain
2 Vice Chair Bernardo Caicedo Colombia
3 Secretary Anthony Leung Hong Kong Special Administrative Region
4 Nominated by TC Chair Pierre Delage France
5 Nominated by TC Chair David Toll United Kingdom
6 Nominated by TC Chair Adrian Russell Australia
7 Nominated Member Atsushi Iizuka Japan
8 Nominated Member Hirofumi Toyota Japan
9 Nominated Member Mayu Tincopa Peru
10 Nominated Member Akbar Javadi United Kingdom
11 Nominated Member Omar Amer Egypt
12 Nominated Member Simon Wheeler United Kingdom
13 Nominated Member Chao Zhou Hong Kong Special Administrative Region
14 Nominated Member Viet Hung HOANG Vietnam
15 Nominated Member Seong-Wan Park South Korea
16 Corresponding Member Hadi Khabbaz Australia
17 Corresponding Member Arman Khoshghalb Australia
18 Corresponding Member Carmine Gerardo Gragnano Italy
19 Nominated Member Seyed Mohsen Haeri Iran
20 Nominated Member Harianto Rahardjo SEAGS
21 Corresponding Member Francesca Casini Italy
22 Corresponding Member Christopher Beckett United Kingdom
23 Corresponding Member Mehmet Baris Can Ulker Turkey
24 Corresponding Member Xu Li China
25 Nominated Member Yu-Jun CUI France
26 Corresponding Member Hermann Peiffer Belgium
27 Nominated Member Masrouri Farimah France
28 Nominated Member Rafaela Cardoso Portugal
29 Nominated Member David Masin Czech & Slovak Republics
30 Nominated Member Katia Bicalho Brazil
31 Nominated Member Gilson Gitirana Brazil
32 Corresponding Member Tácio Mauro Pereira de Campos Brazil
33 Nominated Member Behrouz Gatmiri Iran
34 Nominated Member S. Rajesh India
35 Nominated Member Katerina Tsiampousi Greece
36 Corresponding Member Panos Sitarenios Greece
37 Nominated Member Michael Bardanis Greece
38 Nominated Member Alessio Ferrari Switzerland
39 Nominated Member Laureano Hoyos United States
40 Nominated Member Xiong Zhang United States
41 Nominated Member Changfu Wei China
42 Corresponding Member Sandra Houston United States
43 Corresponding Member Chan-Young Yune South Korea
44 Nominated Member Gabriela Brandusa Cazacu Romania
45 Nominated Member Nasser Khalili Australia
46 Corresponding Member Adrian Russell Australia
47 Corresponding Member Apiniti Jotisankasa Thailand
48 Nominated Member Robert Charlier Belgium
49 Nominated Member Viroon Kamchoom Thailand
50 Nominated Member Kartal Toker Turkey
51 Nominated Member Alfrendo Satyanaga Indonesia
52 Nominated Member Chia-Cheng Fan Chinese Taipei
53 Nominated Member Delwyn Fredlund Canada
54 Nominated Member Cristina Jommi Netherlands
55 Nominated Member Sai Vanapalli Canada
56 Nominated Member EDUARDO ROJAS GONZALEZ Mexico
57 Nominated Member Alberto Ledesma Spain
58 Nominated Member Wojciech Solowski Finland
59 Corresponding Member Javier Quintana Pérez Spain
60 Nominated Member Alfrendo Satyanaga Kazakhstan
61 Corresponding Member Miriam Martínez Ruiz Spain
62 Nominated Member Nuria Pinyol Spain
63 Nominated Member Emőke Imre Hungary
64 Nominated Member Claudio Mancuso Italy
65 Nominated Member LUCIANO OLDECOP Argentina
66 Nominated Member Gabriele Della Vecchia Italy
67 Corresponding Member Antonio Gens Spain
68 Nominated Member Daichao Sheng Australia
69 Corresponding Member Geoff Chao United States
70 Nominated Member HAI MINH NGUYEN Vietnam
71 Corresponding Member Partha Mishra Australia
72 Nominated Member Diego Manzanal Argentina
73 Nominated Member Liangtong Zhan China
74 Nominated Member Katherine Yates New Zealand
75 Nominated Member Paul Jaquin New Zealand
76 Nominated Member Kazimierz Garbulewski Poland
77 Nominated Member SW Jacobsz South Africa
78 Nominated Member Frans van der Merwe South Africa
79 Nominated Member Zdzisław Skutnik Poland
80 Corresponding Member Tomoyoshi NISHIMURA Japan
81 Corresponding Member Marius Milatz Germany
82 Nominated Member Sugeng Krisnanto Indonesia
83 Nominated Member T. Thyaaraj India
84 Corresponding Member T.V Bharat India

Contact Technical Committee : Unsaturated Soils

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